mirror of
https://github.com/ziglang/zig.git
synced 2025-12-12 17:23:09 +00:00
2f9264d8dc
This flag is used when building stage1 to omit the stage2 backends from the compiler to save memory on the CI server. It regressed with the merging of e8813b296bc55a13b534bd9b2a03e1f6af366915 because Value functions started calling into Sema functions. The end goal for this build option is to eliminate it.
5191 lines
204 KiB
Zig
5191 lines
204 KiB
Zig
const Compilation = @This();
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const std = @import("std");
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const builtin = @import("builtin");
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const mem = std.mem;
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const Allocator = std.mem.Allocator;
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const assert = std.debug.assert;
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const log = std.log.scoped(.compilation);
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const Target = std.Target;
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const Value = @import("value.zig").Value;
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const Type = @import("type.zig").Type;
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const target_util = @import("target.zig");
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const Package = @import("Package.zig");
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const link = @import("link.zig");
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const tracy = @import("tracy.zig");
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const trace = tracy.trace;
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const build_options = @import("build_options");
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const LibCInstallation = @import("libc_installation.zig").LibCInstallation;
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const glibc = @import("glibc.zig");
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const musl = @import("musl.zig");
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const mingw = @import("mingw.zig");
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const libunwind = @import("libunwind.zig");
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const libcxx = @import("libcxx.zig");
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const wasi_libc = @import("wasi_libc.zig");
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const fatal = @import("main.zig").fatal;
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const clangMain = @import("main.zig").clangMain;
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const Module = @import("Module.zig");
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const Cache = @import("Cache.zig");
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const stage1 = @import("stage1.zig");
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const translate_c = @import("translate_c.zig");
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const c_codegen = @import("codegen/c.zig");
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const ThreadPool = @import("ThreadPool.zig");
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const WaitGroup = @import("WaitGroup.zig");
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const libtsan = @import("libtsan.zig");
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const Zir = @import("Zir.zig");
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const Color = @import("main.zig").Color;
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/// General-purpose allocator. Used for both temporary and long-term storage.
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gpa: Allocator,
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/// Arena-allocated memory used during initialization. Should be untouched until deinit.
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arena_state: std.heap.ArenaAllocator.State,
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bin_file: *link.File,
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c_object_table: std.AutoArrayHashMapUnmanaged(*CObject, void) = .{},
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/// This is a pointer to a local variable inside `update()`.
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whole_cache_manifest: ?*Cache.Manifest = null,
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link_error_flags: link.File.ErrorFlags = .{},
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work_queue: std.fifo.LinearFifo(Job, .Dynamic),
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anon_work_queue: std.fifo.LinearFifo(Job, .Dynamic),
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/// These jobs are to invoke the Clang compiler to create an object file, which
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/// gets linked with the Compilation.
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c_object_work_queue: std.fifo.LinearFifo(*CObject, .Dynamic),
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/// These jobs are to tokenize, parse, and astgen files, which may be outdated
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/// since the last compilation, as well as scan for `@import` and queue up
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/// additional jobs corresponding to those new files.
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astgen_work_queue: std.fifo.LinearFifo(*Module.File, .Dynamic),
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/// These jobs are to inspect the file system stat() and if the embedded file has changed
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/// on disk, mark the corresponding Decl outdated and queue up an `analyze_decl`
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/// task for it.
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embed_file_work_queue: std.fifo.LinearFifo(*Module.EmbedFile, .Dynamic),
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/// The ErrorMsg memory is owned by the `CObject`, using Compilation's general purpose allocator.
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/// This data is accessed by multiple threads and is protected by `mutex`.
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failed_c_objects: std.AutoArrayHashMapUnmanaged(*CObject, *CObject.ErrorMsg) = .{},
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/// Miscellaneous things that can fail.
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misc_failures: std.AutoArrayHashMapUnmanaged(MiscTask, MiscError) = .{},
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keep_source_files_loaded: bool,
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use_clang: bool,
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sanitize_c: bool,
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/// When this is `true` it means invoking clang as a sub-process is expected to inherit
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/// stdin, stdout, stderr, and if it returns non success, to forward the exit code.
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/// Otherwise we attempt to parse the error messages and expose them via the Compilation API.
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/// This is `true` for `zig cc`, `zig c++`, and `zig translate-c`.
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clang_passthrough_mode: bool,
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clang_preprocessor_mode: ClangPreprocessorMode,
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/// Whether to print clang argvs to stdout.
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verbose_cc: bool,
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verbose_air: bool,
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verbose_mir: bool,
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verbose_llvm_ir: bool,
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verbose_cimport: bool,
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verbose_llvm_cpu_features: bool,
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disable_c_depfile: bool,
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time_report: bool,
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stack_report: bool,
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unwind_tables: bool,
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test_evented_io: bool,
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debug_compiler_runtime_libs: bool,
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debug_compile_errors: bool,
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c_source_files: []const CSourceFile,
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clang_argv: []const []const u8,
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cache_parent: *Cache,
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/// Path to own executable for invoking `zig clang`.
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self_exe_path: ?[]const u8,
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/// null means -fno-emit-bin.
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/// This is mutable memory allocated into the Compilation-lifetime arena (`arena_state`)
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/// of exactly the correct size for "o/[digest]/[basename]".
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/// The basename is of the outputted binary file in case we don't know the directory yet.
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whole_bin_sub_path: ?[]u8,
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/// Same as `whole_bin_sub_path` but for implibs.
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whole_implib_sub_path: ?[]u8,
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zig_lib_directory: Directory,
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local_cache_directory: Directory,
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global_cache_directory: Directory,
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libc_include_dir_list: []const []const u8,
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thread_pool: *ThreadPool,
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/// Populated when we build the libc++ static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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libcxx_static_lib: ?CRTFile = null,
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/// Populated when we build the libc++abi static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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libcxxabi_static_lib: ?CRTFile = null,
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/// Populated when we build the libunwind static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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libunwind_static_lib: ?CRTFile = null,
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/// Populated when we build the TSAN static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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tsan_static_lib: ?CRTFile = null,
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/// Populated when we build the libssp static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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libssp_static_lib: ?CRTFile = null,
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/// Populated when we build the libc static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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libc_static_lib: ?CRTFile = null,
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/// Populated when we build the libcompiler_rt static library. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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compiler_rt_static_lib: ?CRTFile = null,
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/// Populated when we build the compiler_rt_obj object. A Job to build this is placed in the queue
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/// and resolved before calling linker.flush().
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compiler_rt_obj: ?CRTFile = null,
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glibc_so_files: ?glibc.BuiltSharedObjects = null,
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/// For example `Scrt1.o` and `libc_nonshared.a`. These are populated after building libc from source,
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/// The set of needed CRT (C runtime) files differs depending on the target and compilation settings.
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/// The key is the basename, and the value is the absolute path to the completed build artifact.
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crt_files: std.StringHashMapUnmanaged(CRTFile) = .{},
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/// Keeping track of this possibly open resource so we can close it later.
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owned_link_dir: ?std.fs.Dir,
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/// This is for stage1 and should be deleted upon completion of self-hosting.
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/// Don't use this for anything other than stage1 compatibility.
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color: Color = .auto,
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/// This mutex guards all `Compilation` mutable state.
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mutex: std.Thread.Mutex = .{},
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test_filter: ?[]const u8,
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test_name_prefix: ?[]const u8,
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emit_asm: ?EmitLoc,
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emit_llvm_ir: ?EmitLoc,
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emit_llvm_bc: ?EmitLoc,
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emit_analysis: ?EmitLoc,
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emit_docs: ?EmitLoc,
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work_queue_wait_group: WaitGroup,
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astgen_wait_group: WaitGroup,
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/// Exported symbol names. This is only for when the target is wasm.
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/// TODO: Remove this when Stage2 becomes the default compiler as it will already have this information.
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export_symbol_names: std.ArrayListUnmanaged([]const u8) = .{},
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pub const SemaError = Module.SemaError;
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pub const CRTFile = struct {
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lock: Cache.Lock,
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full_object_path: []const u8,
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fn deinit(self: *CRTFile, gpa: Allocator) void {
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self.lock.release();
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gpa.free(self.full_object_path);
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self.* = undefined;
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}
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};
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/// For passing to a C compiler.
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pub const CSourceFile = struct {
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src_path: []const u8,
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extra_flags: []const []const u8 = &[0][]const u8{},
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};
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const Job = union(enum) {
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/// Write the constant value for a Decl to the output file.
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codegen_decl: *Module.Decl,
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/// Write the machine code for a function to the output file.
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codegen_func: *Module.Fn,
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/// Render the .h file snippet for the Decl.
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emit_h_decl: *Module.Decl,
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/// The Decl needs to be analyzed and possibly export itself.
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/// It may have already be analyzed, or it may have been determined
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/// to be outdated; in this case perform semantic analysis again.
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analyze_decl: *Module.Decl,
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/// The file that was loaded with `@embedFile` has changed on disk
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/// and has been re-loaded into memory. All Decls that depend on it
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/// need to be re-analyzed.
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update_embed_file: *Module.EmbedFile,
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/// The source file containing the Decl has been updated, and so the
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/// Decl may need its line number information updated in the debug info.
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update_line_number: *Module.Decl,
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/// The main source file for the package needs to be analyzed.
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analyze_pkg: *Package,
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/// one of the glibc static objects
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glibc_crt_file: glibc.CRTFile,
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/// all of the glibc shared objects
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glibc_shared_objects,
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/// one of the musl static objects
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musl_crt_file: musl.CRTFile,
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/// one of the mingw-w64 static objects
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mingw_crt_file: mingw.CRTFile,
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/// libunwind.a, usually needed when linking libc
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libunwind: void,
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libcxx: void,
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libcxxabi: void,
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libtsan: void,
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libssp: void,
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compiler_rt_lib: void,
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compiler_rt_obj: void,
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/// needed when not linking libc and using LLVM for code generation because it generates
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/// calls to, for example, memcpy and memset.
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zig_libc: void,
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/// one of WASI libc static objects
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wasi_libc_crt_file: wasi_libc.CRTFile,
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/// Use stage1 C++ code to compile zig code into an object file.
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stage1_module: void,
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/// The value is the index into `link.File.Options.system_libs`.
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windows_import_lib: usize,
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};
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pub const CObject = struct {
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/// Relative to cwd. Owned by arena.
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src: CSourceFile,
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status: union(enum) {
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new,
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success: struct {
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/// The outputted result. Owned by gpa.
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object_path: []u8,
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/// This is a file system lock on the cache hash manifest representing this
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/// object. It prevents other invocations of the Zig compiler from interfering
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/// with this object until released.
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lock: Cache.Lock,
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},
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/// There will be a corresponding ErrorMsg in Compilation.failed_c_objects.
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failure,
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/// A transient failure happened when trying to compile the C Object; it may
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/// succeed if we try again. There may be a corresponding ErrorMsg in
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/// Compilation.failed_c_objects. If there is not, the failure is out of memory.
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failure_retryable,
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},
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pub const ErrorMsg = struct {
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msg: []const u8,
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line: u32,
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column: u32,
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pub fn destroy(em: *ErrorMsg, gpa: Allocator) void {
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gpa.free(em.msg);
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gpa.destroy(em);
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}
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};
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/// Returns if there was failure.
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pub fn clearStatus(self: *CObject, gpa: Allocator) bool {
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switch (self.status) {
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.new => return false,
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.failure, .failure_retryable => {
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self.status = .new;
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return true;
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},
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.success => |*success| {
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gpa.free(success.object_path);
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success.lock.release();
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self.status = .new;
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return false;
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},
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}
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}
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pub fn destroy(self: *CObject, gpa: Allocator) void {
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_ = self.clearStatus(gpa);
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gpa.destroy(self);
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}
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};
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pub const MiscTask = enum {
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write_builtin_zig,
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glibc_crt_file,
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glibc_shared_objects,
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musl_crt_file,
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mingw_crt_file,
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windows_import_lib,
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libunwind,
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libcxx,
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libcxxabi,
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libtsan,
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wasi_libc_crt_file,
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compiler_rt,
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libssp,
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zig_libc,
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analyze_pkg,
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};
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pub const MiscError = struct {
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/// Allocated with gpa.
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msg: []u8,
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children: ?AllErrors = null,
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pub fn deinit(misc_err: *MiscError, gpa: Allocator) void {
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gpa.free(misc_err.msg);
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if (misc_err.children) |*children| {
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children.deinit(gpa);
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}
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misc_err.* = undefined;
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}
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};
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/// To support incremental compilation, errors are stored in various places
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/// so that they can be created and destroyed appropriately. This structure
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/// is used to collect all the errors from the various places into one
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/// convenient place for API users to consume. It is allocated into 1 arena
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/// and freed all at once.
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pub const AllErrors = struct {
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arena: std.heap.ArenaAllocator.State,
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list: []const Message,
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pub const Message = union(enum) {
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src: struct {
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msg: []const u8,
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src_path: []const u8,
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line: u32,
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column: u32,
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byte_offset: u32,
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/// Does not include the trailing newline.
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source_line: ?[]const u8,
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notes: []Message = &.{},
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},
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plain: struct {
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msg: []const u8,
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notes: []Message = &.{},
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},
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pub fn renderToStdErr(msg: Message, ttyconf: std.debug.TTY.Config) void {
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std.debug.getStderrMutex().lock();
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defer std.debug.getStderrMutex().unlock();
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const stderr = std.io.getStdErr();
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return msg.renderToStdErrInner(ttyconf, stderr, "error:", .Red, 0) catch return;
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}
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fn renderToStdErrInner(
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msg: Message,
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ttyconf: std.debug.TTY.Config,
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stderr_file: std.fs.File,
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kind: []const u8,
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color: std.debug.TTY.Color,
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indent: usize,
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) anyerror!void {
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const stderr = stderr_file.writer();
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switch (msg) {
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.src => |src| {
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try stderr.writeByteNTimes(' ', indent);
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ttyconf.setColor(stderr, .Bold);
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try stderr.print("{s}:{d}:{d}: ", .{
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src.src_path,
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src.line + 1,
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src.column + 1,
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});
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ttyconf.setColor(stderr, color);
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try stderr.writeAll(kind);
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ttyconf.setColor(stderr, .Reset);
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ttyconf.setColor(stderr, .Bold);
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try stderr.print(" {s}\n", .{src.msg});
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ttyconf.setColor(stderr, .Reset);
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if (ttyconf != .no_color) {
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if (src.source_line) |line| {
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for (line) |b| switch (b) {
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'\t' => try stderr.writeByte(' '),
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else => try stderr.writeByte(b),
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};
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try stderr.writeByte('\n');
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try stderr.writeByteNTimes(' ', src.column);
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ttyconf.setColor(stderr, .Green);
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try stderr.writeAll("^\n");
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ttyconf.setColor(stderr, .Reset);
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}
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}
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for (src.notes) |note| {
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try note.renderToStdErrInner(ttyconf, stderr_file, "note:", .Cyan, indent);
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}
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},
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.plain => |plain| {
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ttyconf.setColor(stderr, color);
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try stderr.writeByteNTimes(' ', indent);
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try stderr.writeAll(kind);
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ttyconf.setColor(stderr, .Reset);
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try stderr.print(" {s}\n", .{plain.msg});
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ttyconf.setColor(stderr, .Reset);
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for (plain.notes) |note| {
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try note.renderToStdErrInner(ttyconf, stderr_file, "error:", .Red, indent + 4);
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}
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},
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}
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}
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};
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pub fn deinit(self: *AllErrors, gpa: Allocator) void {
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self.arena.promote(gpa).deinit();
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}
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|
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fn add(
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module: *Module,
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arena: *std.heap.ArenaAllocator,
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|
errors: *std.ArrayList(Message),
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module_err_msg: Module.ErrorMsg,
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|
) !void {
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const allocator = arena.allocator();
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const notes = try allocator.alloc(Message, module_err_msg.notes.len);
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for (notes) |*note, i| {
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const module_note = module_err_msg.notes[i];
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const source = try module_note.src_loc.file_scope.getSource(module.gpa);
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const byte_offset = try module_note.src_loc.byteOffset(module.gpa);
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const loc = std.zig.findLineColumn(source.bytes, byte_offset);
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const file_path = try module_note.src_loc.file_scope.fullPath(allocator);
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note.* = .{
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.src = .{
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.src_path = file_path,
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.msg = try allocator.dupe(u8, module_note.msg),
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.byte_offset = byte_offset,
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.line = @intCast(u32, loc.line),
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.column = @intCast(u32, loc.column),
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.source_line = try allocator.dupe(u8, loc.source_line),
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},
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};
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}
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|
if (module_err_msg.src_loc.lazy == .entire_file) {
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|
try errors.append(.{
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|
.plain = .{
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.msg = try allocator.dupe(u8, module_err_msg.msg),
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},
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});
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return;
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}
|
|
const source = try module_err_msg.src_loc.file_scope.getSource(module.gpa);
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|
const byte_offset = try module_err_msg.src_loc.byteOffset(module.gpa);
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|
const loc = std.zig.findLineColumn(source.bytes, byte_offset);
|
|
const file_path = try module_err_msg.src_loc.file_scope.fullPath(allocator);
|
|
try errors.append(.{
|
|
.src = .{
|
|
.src_path = file_path,
|
|
.msg = try allocator.dupe(u8, module_err_msg.msg),
|
|
.byte_offset = byte_offset,
|
|
.line = @intCast(u32, loc.line),
|
|
.column = @intCast(u32, loc.column),
|
|
.notes = notes,
|
|
.source_line = try allocator.dupe(u8, loc.source_line),
|
|
},
|
|
});
|
|
}
|
|
|
|
pub fn addZir(
|
|
arena: Allocator,
|
|
errors: *std.ArrayList(Message),
|
|
file: *Module.File,
|
|
) !void {
|
|
assert(file.zir_loaded);
|
|
assert(file.tree_loaded);
|
|
assert(file.source_loaded);
|
|
const payload_index = file.zir.extra[@enumToInt(Zir.ExtraIndex.compile_errors)];
|
|
assert(payload_index != 0);
|
|
|
|
const header = file.zir.extraData(Zir.Inst.CompileErrors, payload_index);
|
|
const items_len = header.data.items_len;
|
|
var extra_index = header.end;
|
|
var item_i: usize = 0;
|
|
while (item_i < items_len) : (item_i += 1) {
|
|
const item = file.zir.extraData(Zir.Inst.CompileErrors.Item, extra_index);
|
|
extra_index = item.end;
|
|
|
|
var notes: []Message = &[0]Message{};
|
|
if (item.data.notes != 0) {
|
|
const block = file.zir.extraData(Zir.Inst.Block, item.data.notes);
|
|
const body = file.zir.extra[block.end..][0..block.data.body_len];
|
|
notes = try arena.alloc(Message, body.len);
|
|
for (notes) |*note, i| {
|
|
const note_item = file.zir.extraData(Zir.Inst.CompileErrors.Item, body[i]);
|
|
const msg = file.zir.nullTerminatedString(note_item.data.msg);
|
|
const byte_offset = blk: {
|
|
const token_starts = file.tree.tokens.items(.start);
|
|
if (note_item.data.node != 0) {
|
|
const main_tokens = file.tree.nodes.items(.main_token);
|
|
const main_token = main_tokens[note_item.data.node];
|
|
break :blk token_starts[main_token];
|
|
}
|
|
break :blk token_starts[note_item.data.token] + note_item.data.byte_offset;
|
|
};
|
|
const loc = std.zig.findLineColumn(file.source, byte_offset);
|
|
|
|
note.* = .{
|
|
.src = .{
|
|
.src_path = try file.fullPath(arena),
|
|
.msg = try arena.dupe(u8, msg),
|
|
.byte_offset = byte_offset,
|
|
.line = @intCast(u32, loc.line),
|
|
.column = @intCast(u32, loc.column),
|
|
.notes = &.{}, // TODO rework this function to be recursive
|
|
.source_line = try arena.dupe(u8, loc.source_line),
|
|
},
|
|
};
|
|
}
|
|
}
|
|
|
|
const msg = file.zir.nullTerminatedString(item.data.msg);
|
|
const byte_offset = blk: {
|
|
const token_starts = file.tree.tokens.items(.start);
|
|
if (item.data.node != 0) {
|
|
const main_tokens = file.tree.nodes.items(.main_token);
|
|
const main_token = main_tokens[item.data.node];
|
|
break :blk token_starts[main_token];
|
|
}
|
|
break :blk token_starts[item.data.token] + item.data.byte_offset;
|
|
};
|
|
const loc = std.zig.findLineColumn(file.source, byte_offset);
|
|
|
|
try errors.append(.{
|
|
.src = .{
|
|
.src_path = try file.fullPath(arena),
|
|
.msg = try arena.dupe(u8, msg),
|
|
.byte_offset = byte_offset,
|
|
.line = @intCast(u32, loc.line),
|
|
.column = @intCast(u32, loc.column),
|
|
.notes = notes,
|
|
.source_line = try arena.dupe(u8, loc.source_line),
|
|
},
|
|
});
|
|
}
|
|
}
|
|
|
|
fn addPlain(
|
|
arena: *std.heap.ArenaAllocator,
|
|
errors: *std.ArrayList(Message),
|
|
msg: []const u8,
|
|
) !void {
|
|
_ = arena;
|
|
try errors.append(.{ .plain = .{ .msg = msg } });
|
|
}
|
|
|
|
fn addPlainWithChildren(
|
|
arena: *std.heap.ArenaAllocator,
|
|
errors: *std.ArrayList(Message),
|
|
msg: []const u8,
|
|
optional_children: ?AllErrors,
|
|
) !void {
|
|
const allocator = arena.allocator();
|
|
const duped_msg = try allocator.dupe(u8, msg);
|
|
if (optional_children) |*children| {
|
|
try errors.append(.{ .plain = .{
|
|
.msg = duped_msg,
|
|
.notes = try dupeList(children.list, allocator),
|
|
} });
|
|
} else {
|
|
try errors.append(.{ .plain = .{ .msg = duped_msg } });
|
|
}
|
|
}
|
|
|
|
fn dupeList(list: []const Message, arena: Allocator) Allocator.Error![]Message {
|
|
const duped_list = try arena.alloc(Message, list.len);
|
|
for (list) |item, i| {
|
|
duped_list[i] = switch (item) {
|
|
.src => |src| .{ .src = .{
|
|
.msg = try arena.dupe(u8, src.msg),
|
|
.src_path = try arena.dupe(u8, src.src_path),
|
|
.line = src.line,
|
|
.column = src.column,
|
|
.byte_offset = src.byte_offset,
|
|
.source_line = if (src.source_line) |s| try arena.dupe(u8, s) else null,
|
|
.notes = try dupeList(src.notes, arena),
|
|
} },
|
|
.plain => |plain| .{ .plain = .{
|
|
.msg = try arena.dupe(u8, plain.msg),
|
|
.notes = try dupeList(plain.notes, arena),
|
|
} },
|
|
};
|
|
}
|
|
return duped_list;
|
|
}
|
|
};
|
|
|
|
pub const Directory = struct {
|
|
/// This field is redundant for operations that can act on the open directory handle
|
|
/// directly, but it is needed when passing the directory to a child process.
|
|
/// `null` means cwd.
|
|
path: ?[]const u8,
|
|
handle: std.fs.Dir,
|
|
|
|
pub fn join(self: Directory, allocator: Allocator, paths: []const []const u8) ![]u8 {
|
|
if (self.path) |p| {
|
|
// TODO clean way to do this with only 1 allocation
|
|
const part2 = try std.fs.path.join(allocator, paths);
|
|
defer allocator.free(part2);
|
|
return std.fs.path.join(allocator, &[_][]const u8{ p, part2 });
|
|
} else {
|
|
return std.fs.path.join(allocator, paths);
|
|
}
|
|
}
|
|
|
|
pub fn joinZ(self: Directory, allocator: Allocator, paths: []const []const u8) ![:0]u8 {
|
|
if (self.path) |p| {
|
|
// TODO clean way to do this with only 1 allocation
|
|
const part2 = try std.fs.path.join(allocator, paths);
|
|
defer allocator.free(part2);
|
|
return std.fs.path.joinZ(allocator, &[_][]const u8{ p, part2 });
|
|
} else {
|
|
return std.fs.path.joinZ(allocator, paths);
|
|
}
|
|
}
|
|
|
|
/// Whether or not the handle should be closed, or the path should be freed
|
|
/// is determined by usage, however this function is provided for convenience
|
|
/// if it happens to be what the caller needs.
|
|
pub fn closeAndFree(self: *Directory, gpa: Allocator) void {
|
|
self.handle.close();
|
|
if (self.path) |p| gpa.free(p);
|
|
self.* = undefined;
|
|
}
|
|
};
|
|
|
|
pub const EmitLoc = struct {
|
|
/// If this is `null` it means the file will be output to the cache directory.
|
|
/// When provided, both the open file handle and the path name must outlive the `Compilation`.
|
|
directory: ?Compilation.Directory,
|
|
/// This may not have sub-directories in it.
|
|
basename: []const u8,
|
|
};
|
|
|
|
pub const ClangPreprocessorMode = enum {
|
|
no,
|
|
/// This means we are doing `zig cc -E -o <path>`.
|
|
yes,
|
|
/// This means we are doing `zig cc -E`.
|
|
stdout,
|
|
};
|
|
|
|
pub const SystemLib = link.SystemLib;
|
|
pub const CacheMode = link.CacheMode;
|
|
|
|
pub const LinkObject = struct {
|
|
path: []const u8,
|
|
must_link: bool = false,
|
|
};
|
|
|
|
pub const InitOptions = struct {
|
|
zig_lib_directory: Directory,
|
|
local_cache_directory: Directory,
|
|
global_cache_directory: Directory,
|
|
target: Target,
|
|
root_name: []const u8,
|
|
main_pkg: ?*Package,
|
|
output_mode: std.builtin.OutputMode,
|
|
thread_pool: *ThreadPool,
|
|
dynamic_linker: ?[]const u8 = null,
|
|
sysroot: ?[]const u8 = null,
|
|
/// `null` means to not emit a binary file.
|
|
emit_bin: ?EmitLoc,
|
|
/// `null` means to not emit a C header file.
|
|
emit_h: ?EmitLoc = null,
|
|
/// `null` means to not emit assembly.
|
|
emit_asm: ?EmitLoc = null,
|
|
/// `null` means to not emit LLVM IR.
|
|
emit_llvm_ir: ?EmitLoc = null,
|
|
/// `null` means to not emit LLVM module bitcode.
|
|
emit_llvm_bc: ?EmitLoc = null,
|
|
/// `null` means to not emit semantic analysis JSON.
|
|
emit_analysis: ?EmitLoc = null,
|
|
/// `null` means to not emit docs.
|
|
emit_docs: ?EmitLoc = null,
|
|
/// `null` means to not emit an import lib.
|
|
emit_implib: ?EmitLoc = null,
|
|
link_mode: ?std.builtin.LinkMode = null,
|
|
dll_export_fns: ?bool = false,
|
|
/// Normally when using LLD to link, Zig uses a file named "lld.id" in the
|
|
/// same directory as the output binary which contains the hash of the link
|
|
/// operation, allowing Zig to skip linking when the hash would be unchanged.
|
|
/// In the case that the output binary is being emitted into a directory which
|
|
/// is externally modified - essentially anything other than zig-cache - then
|
|
/// this flag would be set to disable this machinery to avoid false positives.
|
|
disable_lld_caching: bool = false,
|
|
cache_mode: CacheMode = .incremental,
|
|
object_format: ?std.Target.ObjectFormat = null,
|
|
optimize_mode: std.builtin.Mode = .Debug,
|
|
keep_source_files_loaded: bool = false,
|
|
clang_argv: []const []const u8 = &[0][]const u8{},
|
|
lib_dirs: []const []const u8 = &[0][]const u8{},
|
|
rpath_list: []const []const u8 = &[0][]const u8{},
|
|
c_source_files: []const CSourceFile = &[0]CSourceFile{},
|
|
link_objects: []LinkObject = &[0]LinkObject{},
|
|
framework_dirs: []const []const u8 = &[0][]const u8{},
|
|
frameworks: []const []const u8 = &[0][]const u8{},
|
|
system_lib_names: []const []const u8 = &.{},
|
|
system_lib_infos: []const SystemLib = &.{},
|
|
/// These correspond to the WASI libc emulated subcomponents including:
|
|
/// * process clocks
|
|
/// * getpid
|
|
/// * mman
|
|
/// * signal
|
|
wasi_emulated_libs: []const wasi_libc.CRTFile = &[0]wasi_libc.CRTFile{},
|
|
link_libc: bool = false,
|
|
link_libcpp: bool = false,
|
|
link_libunwind: bool = false,
|
|
want_pic: ?bool = null,
|
|
/// This means that if the output mode is an executable it will be a
|
|
/// Position Independent Executable. If the output mode is not an
|
|
/// executable this field is ignored.
|
|
want_pie: ?bool = null,
|
|
want_sanitize_c: ?bool = null,
|
|
want_stack_check: ?bool = null,
|
|
want_red_zone: ?bool = null,
|
|
omit_frame_pointer: ?bool = null,
|
|
want_valgrind: ?bool = null,
|
|
want_tsan: ?bool = null,
|
|
want_compiler_rt: ?bool = null,
|
|
want_lto: ?bool = null,
|
|
want_unwind_tables: ?bool = null,
|
|
use_llvm: ?bool = null,
|
|
use_lld: ?bool = null,
|
|
use_clang: ?bool = null,
|
|
use_stage1: ?bool = null,
|
|
single_threaded: ?bool = null,
|
|
rdynamic: bool = false,
|
|
strip: bool = false,
|
|
function_sections: bool = false,
|
|
is_native_os: bool,
|
|
is_native_abi: bool,
|
|
time_report: bool = false,
|
|
stack_report: bool = false,
|
|
link_eh_frame_hdr: bool = false,
|
|
link_emit_relocs: bool = false,
|
|
linker_script: ?[]const u8 = null,
|
|
version_script: ?[]const u8 = null,
|
|
soname: ?[]const u8 = null,
|
|
linker_gc_sections: ?bool = null,
|
|
linker_allow_shlib_undefined: ?bool = null,
|
|
linker_bind_global_refs_locally: ?bool = null,
|
|
linker_import_memory: ?bool = null,
|
|
linker_import_table: bool = false,
|
|
linker_export_table: bool = false,
|
|
linker_initial_memory: ?u64 = null,
|
|
linker_max_memory: ?u64 = null,
|
|
linker_shared_memory: bool = false,
|
|
linker_global_base: ?u64 = null,
|
|
linker_export_symbol_names: []const []const u8 = &.{},
|
|
each_lib_rpath: ?bool = null,
|
|
disable_c_depfile: bool = false,
|
|
linker_z_nodelete: bool = false,
|
|
linker_z_notext: bool = false,
|
|
linker_z_defs: bool = false,
|
|
linker_z_origin: bool = false,
|
|
linker_z_noexecstack: bool = false,
|
|
linker_z_now: bool = false,
|
|
linker_z_relro: bool = false,
|
|
linker_tsaware: bool = false,
|
|
linker_nxcompat: bool = false,
|
|
linker_dynamicbase: bool = false,
|
|
linker_optimization: ?u8 = null,
|
|
major_subsystem_version: ?u32 = null,
|
|
minor_subsystem_version: ?u32 = null,
|
|
clang_passthrough_mode: bool = false,
|
|
verbose_cc: bool = false,
|
|
verbose_link: bool = false,
|
|
verbose_air: bool = false,
|
|
verbose_mir: bool = false,
|
|
verbose_llvm_ir: bool = false,
|
|
verbose_cimport: bool = false,
|
|
verbose_llvm_cpu_features: bool = false,
|
|
is_test: bool = false,
|
|
test_evented_io: bool = false,
|
|
debug_compiler_runtime_libs: bool = false,
|
|
debug_compile_errors: bool = false,
|
|
/// Normally when you create a `Compilation`, Zig will automatically build
|
|
/// and link in required dependencies, such as compiler-rt and libc. When
|
|
/// building such dependencies themselves, this flag must be set to avoid
|
|
/// infinite recursion.
|
|
skip_linker_dependencies: bool = false,
|
|
parent_compilation_link_libc: bool = false,
|
|
hash_style: link.HashStyle = .both,
|
|
entry: ?[]const u8 = null,
|
|
stack_size_override: ?u64 = null,
|
|
image_base_override: ?u64 = null,
|
|
self_exe_path: ?[]const u8 = null,
|
|
version: ?std.builtin.Version = null,
|
|
compatibility_version: ?std.builtin.Version = null,
|
|
libc_installation: ?*const LibCInstallation = null,
|
|
machine_code_model: std.builtin.CodeModel = .default,
|
|
clang_preprocessor_mode: ClangPreprocessorMode = .no,
|
|
/// This is for stage1 and should be deleted upon completion of self-hosting.
|
|
color: Color = .auto,
|
|
test_filter: ?[]const u8 = null,
|
|
test_name_prefix: ?[]const u8 = null,
|
|
subsystem: ?std.Target.SubSystem = null,
|
|
/// WASI-only. Type of WASI execution model ("command" or "reactor").
|
|
wasi_exec_model: ?std.builtin.WasiExecModel = null,
|
|
/// (Zig compiler development) Enable dumping linker's state as JSON.
|
|
enable_link_snapshots: bool = false,
|
|
/// (Darwin) Path and version of the native SDK if detected.
|
|
native_darwin_sdk: ?std.zig.system.darwin.DarwinSDK = null,
|
|
/// (Darwin) Install name of the dylib
|
|
install_name: ?[]const u8 = null,
|
|
/// (Darwin) Path to entitlements file
|
|
entitlements: ?[]const u8 = null,
|
|
};
|
|
|
|
fn addPackageTableToCacheHash(
|
|
hash: *Cache.HashHelper,
|
|
arena: *std.heap.ArenaAllocator,
|
|
pkg_table: Package.Table,
|
|
seen_table: *std.AutoHashMap(*Package, void),
|
|
hash_type: union(enum) { path_bytes, files: *Cache.Manifest },
|
|
) (error{OutOfMemory} || std.os.GetCwdError)!void {
|
|
const allocator = arena.allocator();
|
|
|
|
const packages = try allocator.alloc(Package.Table.KV, pkg_table.count());
|
|
{
|
|
// Copy over the hashmap entries to our slice
|
|
var table_it = pkg_table.iterator();
|
|
var idx: usize = 0;
|
|
while (table_it.next()) |entry| : (idx += 1) {
|
|
packages[idx] = .{
|
|
.key = entry.key_ptr.*,
|
|
.value = entry.value_ptr.*,
|
|
};
|
|
}
|
|
}
|
|
// Sort the slice by package name
|
|
std.sort.sort(Package.Table.KV, packages, {}, struct {
|
|
fn lessThan(_: void, lhs: Package.Table.KV, rhs: Package.Table.KV) bool {
|
|
return std.mem.lessThan(u8, lhs.key, rhs.key);
|
|
}
|
|
}.lessThan);
|
|
|
|
for (packages) |pkg| {
|
|
if ((try seen_table.getOrPut(pkg.value)).found_existing) continue;
|
|
|
|
// Finally insert the package name and path to the cache hash.
|
|
hash.addBytes(pkg.key);
|
|
switch (hash_type) {
|
|
.path_bytes => {
|
|
hash.addBytes(pkg.value.root_src_path);
|
|
hash.addOptionalBytes(pkg.value.root_src_directory.path);
|
|
},
|
|
.files => |man| {
|
|
const pkg_zig_file = try pkg.value.root_src_directory.join(allocator, &[_][]const u8{
|
|
pkg.value.root_src_path,
|
|
});
|
|
_ = try man.addFile(pkg_zig_file, null);
|
|
},
|
|
}
|
|
// Recurse to handle the package's dependencies
|
|
try addPackageTableToCacheHash(hash, arena, pkg.value.table, seen_table, hash_type);
|
|
}
|
|
}
|
|
|
|
pub fn create(gpa: Allocator, options: InitOptions) !*Compilation {
|
|
const is_dyn_lib = switch (options.output_mode) {
|
|
.Obj, .Exe => false,
|
|
.Lib => (options.link_mode orelse .Static) == .Dynamic,
|
|
};
|
|
const is_exe_or_dyn_lib = switch (options.output_mode) {
|
|
.Obj => false,
|
|
.Lib => is_dyn_lib,
|
|
.Exe => true,
|
|
};
|
|
|
|
const needs_c_symbols = !options.skip_linker_dependencies and is_exe_or_dyn_lib;
|
|
|
|
// WASI-only. Resolve the optional exec-model option, defaults to command.
|
|
const wasi_exec_model = if (options.target.os.tag != .wasi) undefined else options.wasi_exec_model orelse .command;
|
|
|
|
if (options.linker_export_table and options.linker_import_table) {
|
|
return error.ExportTableAndImportTableConflict;
|
|
}
|
|
|
|
const comp: *Compilation = comp: {
|
|
// For allocations that have the same lifetime as Compilation. This arena is used only during this
|
|
// initialization and then is freed in deinit().
|
|
var arena_allocator = std.heap.ArenaAllocator.init(gpa);
|
|
errdefer arena_allocator.deinit();
|
|
const arena = arena_allocator.allocator();
|
|
|
|
// We put the `Compilation` itself in the arena. Freeing the arena will free the module.
|
|
// It's initialized later after we prepare the initialization options.
|
|
const comp = try arena.create(Compilation);
|
|
const root_name = try arena.dupeZ(u8, options.root_name);
|
|
|
|
const ofmt = options.object_format orelse options.target.getObjectFormat();
|
|
|
|
const use_stage1 = options.use_stage1 orelse blk: {
|
|
// Even though we may have no Zig code to compile (depending on `options.main_pkg`),
|
|
// we may need to use stage1 for building compiler-rt and other dependencies.
|
|
|
|
if (build_options.omit_stage2)
|
|
break :blk true;
|
|
if (options.use_llvm) |use_llvm| {
|
|
if (!use_llvm) {
|
|
break :blk false;
|
|
}
|
|
}
|
|
|
|
break :blk build_options.is_stage1;
|
|
};
|
|
|
|
const cache_mode = if (use_stage1 and !options.disable_lld_caching)
|
|
CacheMode.whole
|
|
else
|
|
options.cache_mode;
|
|
|
|
// Make a decision on whether to use LLVM or our own backend.
|
|
const use_llvm = build_options.have_llvm and blk: {
|
|
if (options.use_llvm) |explicit|
|
|
break :blk explicit;
|
|
|
|
// If we are outputting .c code we must use Zig backend.
|
|
if (ofmt == .c)
|
|
break :blk false;
|
|
|
|
// If emitting to LLVM bitcode object format, must use LLVM backend.
|
|
if (options.emit_llvm_ir != null or options.emit_llvm_bc != null)
|
|
break :blk true;
|
|
|
|
// If we have no zig code to compile, no need for LLVM.
|
|
if (options.main_pkg == null)
|
|
break :blk false;
|
|
|
|
// The stage1 compiler depends on the stage1 C++ LLVM backend
|
|
// to compile zig code.
|
|
if (use_stage1)
|
|
break :blk true;
|
|
|
|
// If LLVM does not support the target, then we can't use it.
|
|
if (!target_util.hasLlvmSupport(options.target))
|
|
break :blk false;
|
|
|
|
// Prefer LLVM for release builds.
|
|
if (options.optimize_mode != .Debug)
|
|
break :blk true;
|
|
|
|
// At this point we would prefer to use our own self-hosted backend,
|
|
// because the compilation speed is better than LLVM. But only do it if
|
|
// we are confident in the robustness of the backend.
|
|
break :blk !target_util.selfHostedBackendIsAsRobustAsLlvm(options.target);
|
|
};
|
|
if (!use_llvm) {
|
|
if (options.use_llvm == true) {
|
|
return error.ZigCompilerNotBuiltWithLLVMExtensions;
|
|
}
|
|
if (options.emit_llvm_ir != null or options.emit_llvm_bc != null) {
|
|
return error.EmittingLlvmModuleRequiresUsingLlvmBackend;
|
|
}
|
|
}
|
|
|
|
const tsan = options.want_tsan orelse false;
|
|
// TSAN is implemented in C++ so it requires linking libc++.
|
|
const link_libcpp = options.link_libcpp or tsan;
|
|
const link_libc = link_libcpp or options.link_libc or options.link_libunwind or
|
|
target_util.osRequiresLibC(options.target);
|
|
|
|
const link_libunwind = options.link_libunwind or
|
|
(link_libcpp and target_util.libcNeedsLibUnwind(options.target));
|
|
const unwind_tables = options.want_unwind_tables orelse
|
|
(link_libunwind or target_util.needUnwindTables(options.target));
|
|
const link_eh_frame_hdr = options.link_eh_frame_hdr or unwind_tables;
|
|
|
|
// Make a decision on whether to use LLD or our own linker.
|
|
const use_lld = options.use_lld orelse blk: {
|
|
if (options.target.isDarwin()) {
|
|
break :blk false;
|
|
}
|
|
|
|
if (!build_options.have_llvm)
|
|
break :blk false;
|
|
|
|
if (ofmt == .c)
|
|
break :blk false;
|
|
|
|
if (options.want_lto) |lto| {
|
|
if (lto) {
|
|
break :blk true;
|
|
}
|
|
}
|
|
|
|
// Our linker can't handle objects or most advanced options yet.
|
|
if (options.link_objects.len != 0 or
|
|
options.c_source_files.len != 0 or
|
|
options.frameworks.len != 0 or
|
|
options.system_lib_names.len != 0 or
|
|
options.link_libc or options.link_libcpp or
|
|
link_eh_frame_hdr or
|
|
options.link_emit_relocs or
|
|
options.output_mode == .Lib or
|
|
options.image_base_override != null or
|
|
options.linker_script != null or options.version_script != null or
|
|
options.emit_implib != null)
|
|
{
|
|
break :blk true;
|
|
}
|
|
|
|
if (use_llvm) {
|
|
// If stage1 generates an object file, self-hosted linker is not
|
|
// yet sophisticated enough to handle that.
|
|
break :blk options.main_pkg != null;
|
|
}
|
|
|
|
break :blk false;
|
|
};
|
|
|
|
const sysroot = blk: {
|
|
if (options.sysroot) |sysroot| {
|
|
break :blk sysroot;
|
|
} else if (options.native_darwin_sdk) |sdk| {
|
|
break :blk sdk.path;
|
|
} else {
|
|
break :blk null;
|
|
}
|
|
};
|
|
|
|
const lto = blk: {
|
|
if (options.want_lto) |explicit| {
|
|
if (!use_lld and !options.target.isDarwin())
|
|
return error.LtoUnavailableWithoutLld;
|
|
break :blk explicit;
|
|
} else if (!use_lld) {
|
|
// TODO zig ld LTO support
|
|
// See https://github.com/ziglang/zig/issues/8680
|
|
break :blk false;
|
|
} else if (options.c_source_files.len == 0) {
|
|
break :blk false;
|
|
} else if (options.target.os.tag == .windows and link_libcpp) {
|
|
// https://github.com/ziglang/zig/issues/8531
|
|
break :blk false;
|
|
} else if (options.target.cpu.arch.isRISCV()) {
|
|
// Clang and LLVM currently don't support RISC-V target-abi for LTO.
|
|
// Compiling with LTO may fail or produce undesired results.
|
|
// See https://reviews.llvm.org/D71387
|
|
// See https://reviews.llvm.org/D102582
|
|
break :blk false;
|
|
} else switch (options.output_mode) {
|
|
.Lib, .Obj => break :blk false,
|
|
.Exe => switch (options.optimize_mode) {
|
|
.Debug => break :blk false,
|
|
.ReleaseSafe, .ReleaseFast, .ReleaseSmall => break :blk true,
|
|
},
|
|
}
|
|
};
|
|
|
|
const must_dynamic_link = dl: {
|
|
if (target_util.cannotDynamicLink(options.target))
|
|
break :dl false;
|
|
if (is_exe_or_dyn_lib and link_libc and
|
|
(options.target.isGnuLibC() or target_util.osRequiresLibC(options.target)))
|
|
{
|
|
break :dl true;
|
|
}
|
|
const any_dyn_libs: bool = x: {
|
|
if (options.system_lib_names.len != 0)
|
|
break :x true;
|
|
for (options.link_objects) |obj| {
|
|
switch (classifyFileExt(obj.path)) {
|
|
.shared_library => break :x true,
|
|
else => continue,
|
|
}
|
|
}
|
|
break :x false;
|
|
};
|
|
if (any_dyn_libs) {
|
|
// When creating a executable that links to system libraries,
|
|
// we require dynamic linking, but we must not link static libraries
|
|
// or object files dynamically!
|
|
break :dl (options.output_mode == .Exe);
|
|
}
|
|
|
|
break :dl false;
|
|
};
|
|
const default_link_mode: std.builtin.LinkMode = blk: {
|
|
if (must_dynamic_link) {
|
|
break :blk .Dynamic;
|
|
} else if (is_exe_or_dyn_lib and link_libc and
|
|
options.is_native_abi and options.target.abi.isMusl())
|
|
{
|
|
// If targeting the system's native ABI and the system's
|
|
// libc is musl, link dynamically by default.
|
|
break :blk .Dynamic;
|
|
} else {
|
|
break :blk .Static;
|
|
}
|
|
};
|
|
const link_mode: std.builtin.LinkMode = if (options.link_mode) |lm| blk: {
|
|
if (lm == .Static and must_dynamic_link) {
|
|
return error.UnableToStaticLink;
|
|
}
|
|
break :blk lm;
|
|
} else default_link_mode;
|
|
|
|
const dll_export_fns = if (options.dll_export_fns) |explicit| explicit else is_dyn_lib or options.rdynamic;
|
|
|
|
const libc_dirs = try detectLibCIncludeDirs(
|
|
arena,
|
|
options.zig_lib_directory.path.?,
|
|
options.target,
|
|
options.is_native_abi,
|
|
link_libc,
|
|
options.system_lib_names.len != 0 or options.frameworks.len != 0,
|
|
options.libc_installation,
|
|
options.native_darwin_sdk != null,
|
|
);
|
|
|
|
const must_pie = target_util.requiresPIE(options.target);
|
|
const pie: bool = if (options.want_pie) |explicit| pie: {
|
|
if (!explicit and must_pie) {
|
|
return error.TargetRequiresPIE;
|
|
}
|
|
break :pie explicit;
|
|
} else must_pie or tsan;
|
|
|
|
const must_pic: bool = b: {
|
|
if (target_util.requiresPIC(options.target, link_libc))
|
|
break :b true;
|
|
break :b link_mode == .Dynamic;
|
|
};
|
|
const pic = if (options.want_pic) |explicit| pic: {
|
|
if (!explicit) {
|
|
if (must_pic) {
|
|
return error.TargetRequiresPIC;
|
|
}
|
|
if (pie) {
|
|
return error.PIERequiresPIC;
|
|
}
|
|
}
|
|
break :pic explicit;
|
|
} else pie or must_pic;
|
|
|
|
// Make a decision on whether to use Clang for translate-c and compiling C files.
|
|
const use_clang = if (options.use_clang) |explicit| explicit else blk: {
|
|
if (build_options.have_llvm) {
|
|
// Can't use it if we don't have it!
|
|
break :blk false;
|
|
}
|
|
// It's not planned to do our own translate-c or C compilation.
|
|
break :blk true;
|
|
};
|
|
|
|
const is_safe_mode = switch (options.optimize_mode) {
|
|
.Debug, .ReleaseSafe => true,
|
|
.ReleaseFast, .ReleaseSmall => false,
|
|
};
|
|
|
|
const sanitize_c = options.want_sanitize_c orelse is_safe_mode;
|
|
|
|
const stack_check: bool = b: {
|
|
if (!target_util.supportsStackProbing(options.target))
|
|
break :b false;
|
|
break :b options.want_stack_check orelse is_safe_mode;
|
|
};
|
|
|
|
const valgrind: bool = b: {
|
|
if (!target_util.hasValgrindSupport(options.target))
|
|
break :b false;
|
|
break :b options.want_valgrind orelse (options.optimize_mode == .Debug);
|
|
};
|
|
|
|
const include_compiler_rt = options.want_compiler_rt orelse needs_c_symbols;
|
|
|
|
const must_single_thread = target_util.isSingleThreaded(options.target);
|
|
const single_threaded = options.single_threaded orelse must_single_thread;
|
|
if (must_single_thread and !single_threaded) {
|
|
return error.TargetRequiresSingleThreaded;
|
|
}
|
|
|
|
const llvm_cpu_features: ?[*:0]const u8 = if (build_options.have_llvm and use_llvm) blk: {
|
|
var buf = std.ArrayList(u8).init(arena);
|
|
for (options.target.cpu.arch.allFeaturesList()) |feature, index_usize| {
|
|
const index = @intCast(Target.Cpu.Feature.Set.Index, index_usize);
|
|
const is_enabled = options.target.cpu.features.isEnabled(index);
|
|
|
|
if (feature.llvm_name) |llvm_name| {
|
|
const plus_or_minus = "-+"[@boolToInt(is_enabled)];
|
|
try buf.ensureUnusedCapacity(2 + llvm_name.len);
|
|
buf.appendAssumeCapacity(plus_or_minus);
|
|
buf.appendSliceAssumeCapacity(llvm_name);
|
|
buf.appendSliceAssumeCapacity(",");
|
|
}
|
|
}
|
|
assert(mem.endsWith(u8, buf.items, ","));
|
|
buf.items[buf.items.len - 1] = 0;
|
|
buf.shrinkAndFree(buf.items.len);
|
|
break :blk buf.items[0 .. buf.items.len - 1 :0].ptr;
|
|
} else null;
|
|
|
|
const strip = options.strip or !target_util.hasDebugInfo(options.target);
|
|
const red_zone = options.want_red_zone orelse target_util.hasRedZone(options.target);
|
|
const omit_frame_pointer = options.omit_frame_pointer orelse (options.optimize_mode != .Debug);
|
|
const linker_optimization: u8 = options.linker_optimization orelse switch (options.optimize_mode) {
|
|
.Debug => @as(u8, 0),
|
|
else => @as(u8, 3),
|
|
};
|
|
|
|
// We put everything into the cache hash that *cannot be modified during an incremental update*.
|
|
// For example, one cannot change the target between updates, but one can change source files,
|
|
// so the target goes into the cache hash, but source files do not. This is so that we can
|
|
// find the same binary and incrementally update it even if there are modified source files.
|
|
// We do this even if outputting to the current directory because we need somewhere to store
|
|
// incremental compilation metadata.
|
|
const cache = try arena.create(Cache);
|
|
cache.* = .{
|
|
.gpa = gpa,
|
|
.manifest_dir = try options.local_cache_directory.handle.makeOpenPath("h", .{}),
|
|
};
|
|
errdefer cache.manifest_dir.close();
|
|
|
|
// This is shared hasher state common to zig source and all C source files.
|
|
cache.hash.addBytes(build_options.version);
|
|
cache.hash.addBytes(options.zig_lib_directory.path orelse ".");
|
|
cache.hash.add(options.optimize_mode);
|
|
cache.hash.add(options.target.cpu.arch);
|
|
cache.hash.addBytes(options.target.cpu.model.name);
|
|
cache.hash.add(options.target.cpu.features.ints);
|
|
cache.hash.add(options.target.os.tag);
|
|
cache.hash.add(options.target.os.getVersionRange());
|
|
cache.hash.add(options.is_native_os);
|
|
cache.hash.add(options.target.abi);
|
|
cache.hash.add(ofmt);
|
|
cache.hash.add(pic);
|
|
cache.hash.add(pie);
|
|
cache.hash.add(lto);
|
|
cache.hash.add(unwind_tables);
|
|
cache.hash.add(tsan);
|
|
cache.hash.add(stack_check);
|
|
cache.hash.add(red_zone);
|
|
cache.hash.add(omit_frame_pointer);
|
|
cache.hash.add(link_mode);
|
|
cache.hash.add(options.function_sections);
|
|
cache.hash.add(strip);
|
|
cache.hash.add(link_libc);
|
|
cache.hash.add(link_libcpp);
|
|
cache.hash.add(link_libunwind);
|
|
cache.hash.add(options.output_mode);
|
|
cache.hash.add(options.machine_code_model);
|
|
cache.hash.addOptionalEmitLoc(options.emit_bin);
|
|
cache.hash.addOptionalEmitLoc(options.emit_implib);
|
|
cache.hash.addBytes(options.root_name);
|
|
if (options.target.os.tag == .wasi) cache.hash.add(wasi_exec_model);
|
|
// TODO audit this and make sure everything is in it
|
|
|
|
const module: ?*Module = if (options.main_pkg) |main_pkg| blk: {
|
|
// Options that are specific to zig source files, that cannot be
|
|
// modified between incremental updates.
|
|
var hash = cache.hash;
|
|
|
|
switch (cache_mode) {
|
|
.incremental => {
|
|
// Here we put the root source file path name, but *not* with addFile.
|
|
// We want the hash to be the same regardless of the contents of the
|
|
// source file, because incremental compilation will handle it, but we
|
|
// do want to namespace different source file names because they are
|
|
// likely different compilations and therefore this would be likely to
|
|
// cause cache hits.
|
|
hash.addBytes(main_pkg.root_src_path);
|
|
hash.addOptionalBytes(main_pkg.root_src_directory.path);
|
|
{
|
|
var seen_table = std.AutoHashMap(*Package, void).init(arena);
|
|
try addPackageTableToCacheHash(&hash, &arena_allocator, main_pkg.table, &seen_table, .path_bytes);
|
|
}
|
|
},
|
|
.whole => {
|
|
// In this case, we postpone adding the input source file until
|
|
// we create the cache manifest, in update(), because we want to
|
|
// track it and packages as files.
|
|
},
|
|
}
|
|
|
|
// Synchronize with other matching comments: ZigOnlyHashStuff
|
|
hash.add(valgrind);
|
|
hash.add(single_threaded);
|
|
hash.add(use_stage1);
|
|
hash.add(use_llvm);
|
|
hash.add(dll_export_fns);
|
|
hash.add(options.is_test);
|
|
hash.add(options.test_evented_io);
|
|
hash.addOptionalBytes(options.test_filter);
|
|
hash.addOptionalBytes(options.test_name_prefix);
|
|
hash.add(options.skip_linker_dependencies);
|
|
hash.add(options.parent_compilation_link_libc);
|
|
|
|
// In the case of incremental cache mode, this `zig_cache_artifact_directory`
|
|
// is computed based on a hash of non-linker inputs, and it is where all
|
|
// build artifacts are stored (even while in-progress).
|
|
//
|
|
// For whole cache mode, it is still used for builtin.zig so that the file
|
|
// path to builtin.zig can remain consistent during a debugging session at
|
|
// runtime. However, we don't know where to put outputs from the linker
|
|
// or stage1 backend object files until the final cache hash, which is available
|
|
// after the compilation is complete.
|
|
//
|
|
// Therefore, in whole cache mode, we additionally create a temporary cache
|
|
// directory for these two kinds of build artifacts, and then rename it
|
|
// into place after the final hash is known. However, we don't want
|
|
// to create the temporary directory here, because in the case of a cache hit,
|
|
// this would have been wasted syscalls to make the directory and then not
|
|
// use it (or delete it).
|
|
//
|
|
// In summary, for whole cache mode, we simulate `-fno-emit-bin` in this
|
|
// function, and `zig_cache_artifact_directory` is *wrong* except for builtin.zig,
|
|
// and then at the beginning of `update()` when we find out whether we need
|
|
// a temporary directory, we patch up all the places that the incorrect
|
|
// `zig_cache_artifact_directory` was passed to various components of the compiler.
|
|
|
|
const digest = hash.final();
|
|
const artifact_sub_dir = try std.fs.path.join(arena, &[_][]const u8{ "o", &digest });
|
|
var artifact_dir = try options.local_cache_directory.handle.makeOpenPath(artifact_sub_dir, .{});
|
|
errdefer artifact_dir.close();
|
|
const zig_cache_artifact_directory: Directory = .{
|
|
.handle = artifact_dir,
|
|
.path = try options.local_cache_directory.join(arena, &[_][]const u8{artifact_sub_dir}),
|
|
};
|
|
log.debug("zig_cache_artifact_directory='{s}' use_stage1={}", .{
|
|
zig_cache_artifact_directory.path, use_stage1,
|
|
});
|
|
|
|
const builtin_pkg = try Package.createWithDir(
|
|
gpa,
|
|
zig_cache_artifact_directory,
|
|
null,
|
|
"builtin.zig",
|
|
);
|
|
errdefer builtin_pkg.destroy(gpa);
|
|
|
|
const std_pkg = try Package.createWithDir(
|
|
gpa,
|
|
options.zig_lib_directory,
|
|
"std",
|
|
"std.zig",
|
|
);
|
|
errdefer std_pkg.destroy(gpa);
|
|
|
|
const root_pkg = if (options.is_test) root_pkg: {
|
|
const test_pkg = try Package.createWithDir(
|
|
gpa,
|
|
options.zig_lib_directory,
|
|
"std" ++ std.fs.path.sep_str ++ "special",
|
|
"test_runner.zig",
|
|
);
|
|
errdefer test_pkg.destroy(gpa);
|
|
|
|
try test_pkg.add(gpa, "builtin", builtin_pkg);
|
|
try test_pkg.add(gpa, "root", test_pkg);
|
|
try test_pkg.add(gpa, "std", std_pkg);
|
|
|
|
break :root_pkg test_pkg;
|
|
} else main_pkg;
|
|
errdefer if (options.is_test) root_pkg.destroy(gpa);
|
|
|
|
var other_pkg_iter = main_pkg.table.valueIterator();
|
|
while (other_pkg_iter.next()) |pkg| {
|
|
try pkg.*.add(gpa, "builtin", builtin_pkg);
|
|
try pkg.*.add(gpa, "std", std_pkg);
|
|
}
|
|
|
|
try main_pkg.addAndAdopt(gpa, "builtin", builtin_pkg);
|
|
try main_pkg.add(gpa, "root", root_pkg);
|
|
try main_pkg.addAndAdopt(gpa, "std", std_pkg);
|
|
|
|
try std_pkg.add(gpa, "builtin", builtin_pkg);
|
|
try std_pkg.add(gpa, "root", root_pkg);
|
|
try std_pkg.add(gpa, "std", std_pkg);
|
|
|
|
try builtin_pkg.add(gpa, "std", std_pkg);
|
|
try builtin_pkg.add(gpa, "builtin", builtin_pkg);
|
|
|
|
// Pre-open the directory handles for cached ZIR code so that it does not need
|
|
// to redundantly happen for each AstGen operation.
|
|
const zir_sub_dir = "z";
|
|
|
|
var local_zir_dir = try options.local_cache_directory.handle.makeOpenPath(zir_sub_dir, .{});
|
|
errdefer local_zir_dir.close();
|
|
const local_zir_cache: Directory = .{
|
|
.handle = local_zir_dir,
|
|
.path = try options.local_cache_directory.join(arena, &[_][]const u8{zir_sub_dir}),
|
|
};
|
|
var global_zir_dir = try options.global_cache_directory.handle.makeOpenPath(zir_sub_dir, .{});
|
|
errdefer global_zir_dir.close();
|
|
const global_zir_cache: Directory = .{
|
|
.handle = global_zir_dir,
|
|
.path = try options.global_cache_directory.join(arena, &[_][]const u8{zir_sub_dir}),
|
|
};
|
|
|
|
const emit_h: ?*Module.GlobalEmitH = if (options.emit_h) |loc| eh: {
|
|
const eh = try gpa.create(Module.GlobalEmitH);
|
|
eh.* = .{ .loc = loc };
|
|
break :eh eh;
|
|
} else null;
|
|
errdefer if (emit_h) |eh| gpa.destroy(eh);
|
|
|
|
// TODO when we implement serialization and deserialization of incremental
|
|
// compilation metadata, this is where we would load it. We have open a handle
|
|
// to the directory where the output either already is, or will be.
|
|
// However we currently do not have serialization of such metadata, so for now
|
|
// we set up an empty Module that does the entire compilation fresh.
|
|
|
|
const module = try arena.create(Module);
|
|
errdefer module.deinit();
|
|
module.* = .{
|
|
.gpa = gpa,
|
|
.comp = comp,
|
|
.main_pkg = main_pkg,
|
|
.root_pkg = root_pkg,
|
|
.zig_cache_artifact_directory = zig_cache_artifact_directory,
|
|
.global_zir_cache = global_zir_cache,
|
|
.local_zir_cache = local_zir_cache,
|
|
.emit_h = emit_h,
|
|
.error_name_list = try std.ArrayListUnmanaged([]const u8).initCapacity(gpa, 1),
|
|
};
|
|
module.error_name_list.appendAssumeCapacity("(no error)");
|
|
|
|
break :blk module;
|
|
} else blk: {
|
|
if (options.emit_h != null) return error.NoZigModuleForCHeader;
|
|
break :blk null;
|
|
};
|
|
errdefer if (module) |zm| zm.deinit();
|
|
|
|
const error_return_tracing = !strip and switch (options.optimize_mode) {
|
|
.Debug, .ReleaseSafe => true,
|
|
.ReleaseFast, .ReleaseSmall => false,
|
|
};
|
|
|
|
// For resource management purposes.
|
|
var owned_link_dir: ?std.fs.Dir = null;
|
|
errdefer if (owned_link_dir) |*dir| dir.close();
|
|
|
|
const bin_file_emit: ?link.Emit = blk: {
|
|
const emit_bin = options.emit_bin orelse break :blk null;
|
|
|
|
if (emit_bin.directory) |directory| {
|
|
break :blk link.Emit{
|
|
.directory = directory,
|
|
.sub_path = emit_bin.basename,
|
|
};
|
|
}
|
|
|
|
switch (cache_mode) {
|
|
.whole => break :blk null,
|
|
.incremental => {},
|
|
}
|
|
|
|
if (module) |zm| {
|
|
break :blk link.Emit{
|
|
.directory = zm.zig_cache_artifact_directory,
|
|
.sub_path = emit_bin.basename,
|
|
};
|
|
}
|
|
|
|
// We could use the cache hash as is no problem, however, we increase
|
|
// the likelihood of cache hits by adding the first C source file
|
|
// path name (not contents) to the hash. This way if the user is compiling
|
|
// foo.c and bar.c as separate compilations, they get different cache
|
|
// directories.
|
|
var hash = cache.hash;
|
|
if (options.c_source_files.len >= 1) {
|
|
hash.addBytes(options.c_source_files[0].src_path);
|
|
} else if (options.link_objects.len >= 1) {
|
|
hash.addBytes(options.link_objects[0].path);
|
|
}
|
|
|
|
const digest = hash.final();
|
|
const artifact_sub_dir = try std.fs.path.join(arena, &[_][]const u8{ "o", &digest });
|
|
var artifact_dir = try options.local_cache_directory.handle.makeOpenPath(artifact_sub_dir, .{});
|
|
owned_link_dir = artifact_dir;
|
|
const link_artifact_directory: Directory = .{
|
|
.handle = artifact_dir,
|
|
.path = try options.local_cache_directory.join(arena, &[_][]const u8{artifact_sub_dir}),
|
|
};
|
|
break :blk link.Emit{
|
|
.directory = link_artifact_directory,
|
|
.sub_path = emit_bin.basename,
|
|
};
|
|
};
|
|
|
|
const implib_emit: ?link.Emit = blk: {
|
|
const emit_implib = options.emit_implib orelse break :blk null;
|
|
|
|
if (emit_implib.directory) |directory| {
|
|
break :blk link.Emit{
|
|
.directory = directory,
|
|
.sub_path = emit_implib.basename,
|
|
};
|
|
}
|
|
|
|
// This is here for the same reason as in `bin_file_emit` above.
|
|
switch (cache_mode) {
|
|
.whole => break :blk null,
|
|
.incremental => {},
|
|
}
|
|
|
|
// Use the same directory as the bin. The CLI already emits an
|
|
// error if -fno-emit-bin is combined with -femit-implib.
|
|
break :blk link.Emit{
|
|
.directory = bin_file_emit.?.directory,
|
|
.sub_path = emit_implib.basename,
|
|
};
|
|
};
|
|
|
|
// This is so that when doing `CacheMode.whole`, the mechanism in update()
|
|
// can use it for communicating the result directory via `bin_file.emit`.
|
|
// This is used to distinguish between -fno-emit-bin and -femit-bin
|
|
// for `CacheMode.whole`.
|
|
// This memory will be overwritten with the real digest in update() but
|
|
// the basename will be preserved.
|
|
const whole_bin_sub_path: ?[]u8 = try prepareWholeEmitSubPath(arena, options.emit_bin);
|
|
// Same thing but for implibs.
|
|
const whole_implib_sub_path: ?[]u8 = try prepareWholeEmitSubPath(arena, options.emit_implib);
|
|
|
|
var system_libs: std.StringArrayHashMapUnmanaged(SystemLib) = .{};
|
|
errdefer system_libs.deinit(gpa);
|
|
try system_libs.ensureTotalCapacity(gpa, options.system_lib_names.len);
|
|
for (options.system_lib_names) |lib_name, i| {
|
|
system_libs.putAssumeCapacity(lib_name, options.system_lib_infos[i]);
|
|
}
|
|
|
|
const bin_file = try link.File.openPath(gpa, .{
|
|
.emit = bin_file_emit,
|
|
.implib_emit = implib_emit,
|
|
.root_name = root_name,
|
|
.module = module,
|
|
.target = options.target,
|
|
.dynamic_linker = options.dynamic_linker,
|
|
.sysroot = sysroot,
|
|
.output_mode = options.output_mode,
|
|
.link_mode = link_mode,
|
|
.object_format = ofmt,
|
|
.optimize_mode = options.optimize_mode,
|
|
.use_lld = use_lld,
|
|
.use_llvm = use_llvm,
|
|
.link_libc = link_libc,
|
|
.link_libcpp = link_libcpp,
|
|
.link_libunwind = link_libunwind,
|
|
.objects = options.link_objects,
|
|
.frameworks = options.frameworks,
|
|
.framework_dirs = options.framework_dirs,
|
|
.system_libs = system_libs,
|
|
.wasi_emulated_libs = options.wasi_emulated_libs,
|
|
.lib_dirs = options.lib_dirs,
|
|
.rpath_list = options.rpath_list,
|
|
.strip = strip,
|
|
.is_native_os = options.is_native_os,
|
|
.is_native_abi = options.is_native_abi,
|
|
.function_sections = options.function_sections,
|
|
.allow_shlib_undefined = options.linker_allow_shlib_undefined,
|
|
.bind_global_refs_locally = options.linker_bind_global_refs_locally orelse false,
|
|
.import_memory = options.linker_import_memory orelse false,
|
|
.import_table = options.linker_import_table,
|
|
.export_table = options.linker_export_table,
|
|
.initial_memory = options.linker_initial_memory,
|
|
.max_memory = options.linker_max_memory,
|
|
.shared_memory = options.linker_shared_memory,
|
|
.global_base = options.linker_global_base,
|
|
.export_symbol_names = options.linker_export_symbol_names,
|
|
.z_nodelete = options.linker_z_nodelete,
|
|
.z_notext = options.linker_z_notext,
|
|
.z_defs = options.linker_z_defs,
|
|
.z_origin = options.linker_z_origin,
|
|
.z_noexecstack = options.linker_z_noexecstack,
|
|
.z_now = options.linker_z_now,
|
|
.z_relro = options.linker_z_relro,
|
|
.tsaware = options.linker_tsaware,
|
|
.nxcompat = options.linker_nxcompat,
|
|
.dynamicbase = options.linker_dynamicbase,
|
|
.linker_optimization = linker_optimization,
|
|
.major_subsystem_version = options.major_subsystem_version,
|
|
.minor_subsystem_version = options.minor_subsystem_version,
|
|
.entry = options.entry,
|
|
.stack_size_override = options.stack_size_override,
|
|
.image_base_override = options.image_base_override,
|
|
.include_compiler_rt = include_compiler_rt,
|
|
.linker_script = options.linker_script,
|
|
.version_script = options.version_script,
|
|
.gc_sections = options.linker_gc_sections,
|
|
.eh_frame_hdr = link_eh_frame_hdr,
|
|
.emit_relocs = options.link_emit_relocs,
|
|
.rdynamic = options.rdynamic,
|
|
.soname = options.soname,
|
|
.version = options.version,
|
|
.compatibility_version = options.compatibility_version,
|
|
.libc_installation = libc_dirs.libc_installation,
|
|
.pic = pic,
|
|
.pie = pie,
|
|
.lto = lto,
|
|
.valgrind = valgrind,
|
|
.tsan = tsan,
|
|
.stack_check = stack_check,
|
|
.red_zone = red_zone,
|
|
.omit_frame_pointer = omit_frame_pointer,
|
|
.single_threaded = single_threaded,
|
|
.verbose_link = options.verbose_link,
|
|
.machine_code_model = options.machine_code_model,
|
|
.dll_export_fns = dll_export_fns,
|
|
.error_return_tracing = error_return_tracing,
|
|
.llvm_cpu_features = llvm_cpu_features,
|
|
.skip_linker_dependencies = options.skip_linker_dependencies,
|
|
.parent_compilation_link_libc = options.parent_compilation_link_libc,
|
|
.each_lib_rpath = options.each_lib_rpath orelse options.is_native_os,
|
|
.cache_mode = cache_mode,
|
|
.disable_lld_caching = options.disable_lld_caching or cache_mode == .whole,
|
|
.subsystem = options.subsystem,
|
|
.is_test = options.is_test,
|
|
.wasi_exec_model = wasi_exec_model,
|
|
.use_stage1 = use_stage1,
|
|
.hash_style = options.hash_style,
|
|
.enable_link_snapshots = options.enable_link_snapshots,
|
|
.native_darwin_sdk = options.native_darwin_sdk,
|
|
.install_name = options.install_name,
|
|
.entitlements = options.entitlements,
|
|
});
|
|
errdefer bin_file.destroy();
|
|
comp.* = .{
|
|
.gpa = gpa,
|
|
.arena_state = arena_allocator.state,
|
|
.zig_lib_directory = options.zig_lib_directory,
|
|
.local_cache_directory = options.local_cache_directory,
|
|
.global_cache_directory = options.global_cache_directory,
|
|
.bin_file = bin_file,
|
|
.whole_bin_sub_path = whole_bin_sub_path,
|
|
.whole_implib_sub_path = whole_implib_sub_path,
|
|
.emit_asm = options.emit_asm,
|
|
.emit_llvm_ir = options.emit_llvm_ir,
|
|
.emit_llvm_bc = options.emit_llvm_bc,
|
|
.emit_analysis = options.emit_analysis,
|
|
.emit_docs = options.emit_docs,
|
|
.work_queue = std.fifo.LinearFifo(Job, .Dynamic).init(gpa),
|
|
.anon_work_queue = std.fifo.LinearFifo(Job, .Dynamic).init(gpa),
|
|
.c_object_work_queue = std.fifo.LinearFifo(*CObject, .Dynamic).init(gpa),
|
|
.astgen_work_queue = std.fifo.LinearFifo(*Module.File, .Dynamic).init(gpa),
|
|
.embed_file_work_queue = std.fifo.LinearFifo(*Module.EmbedFile, .Dynamic).init(gpa),
|
|
.keep_source_files_loaded = options.keep_source_files_loaded,
|
|
.use_clang = use_clang,
|
|
.clang_argv = options.clang_argv,
|
|
.c_source_files = options.c_source_files,
|
|
.cache_parent = cache,
|
|
.self_exe_path = options.self_exe_path,
|
|
.libc_include_dir_list = libc_dirs.libc_include_dir_list,
|
|
.sanitize_c = sanitize_c,
|
|
.thread_pool = options.thread_pool,
|
|
.clang_passthrough_mode = options.clang_passthrough_mode,
|
|
.clang_preprocessor_mode = options.clang_preprocessor_mode,
|
|
.verbose_cc = options.verbose_cc,
|
|
.verbose_air = options.verbose_air,
|
|
.verbose_mir = options.verbose_mir,
|
|
.verbose_llvm_ir = options.verbose_llvm_ir,
|
|
.verbose_cimport = options.verbose_cimport,
|
|
.verbose_llvm_cpu_features = options.verbose_llvm_cpu_features,
|
|
.disable_c_depfile = options.disable_c_depfile,
|
|
.owned_link_dir = owned_link_dir,
|
|
.color = options.color,
|
|
.time_report = options.time_report,
|
|
.stack_report = options.stack_report,
|
|
.unwind_tables = unwind_tables,
|
|
.test_filter = options.test_filter,
|
|
.test_name_prefix = options.test_name_prefix,
|
|
.test_evented_io = options.test_evented_io,
|
|
.debug_compiler_runtime_libs = options.debug_compiler_runtime_libs,
|
|
.debug_compile_errors = options.debug_compile_errors,
|
|
.work_queue_wait_group = undefined,
|
|
.astgen_wait_group = undefined,
|
|
};
|
|
break :comp comp;
|
|
};
|
|
errdefer comp.destroy();
|
|
|
|
try comp.work_queue_wait_group.init();
|
|
errdefer comp.work_queue_wait_group.deinit();
|
|
|
|
try comp.astgen_wait_group.init();
|
|
errdefer comp.astgen_wait_group.deinit();
|
|
|
|
// Add a `CObject` for each `c_source_files`.
|
|
try comp.c_object_table.ensureTotalCapacity(gpa, options.c_source_files.len);
|
|
for (options.c_source_files) |c_source_file| {
|
|
const c_object = try gpa.create(CObject);
|
|
errdefer gpa.destroy(c_object);
|
|
|
|
c_object.* = .{
|
|
.status = .{ .new = {} },
|
|
.src = c_source_file,
|
|
};
|
|
comp.c_object_table.putAssumeCapacityNoClobber(c_object, {});
|
|
}
|
|
|
|
const have_bin_emit = comp.bin_file.options.emit != null or comp.whole_bin_sub_path != null;
|
|
|
|
if (have_bin_emit and !comp.bin_file.options.skip_linker_dependencies) {
|
|
// If we need to build glibc for the target, add work items for it.
|
|
// We go through the work queue so that building can be done in parallel.
|
|
if (comp.wantBuildGLibCFromSource()) {
|
|
if (!target_util.canBuildLibC(comp.getTarget())) return error.LibCUnavailable;
|
|
|
|
if (glibc.needsCrtiCrtn(comp.getTarget())) {
|
|
try comp.work_queue.write(&[_]Job{
|
|
.{ .glibc_crt_file = .crti_o },
|
|
.{ .glibc_crt_file = .crtn_o },
|
|
});
|
|
}
|
|
try comp.work_queue.write(&[_]Job{
|
|
.{ .glibc_crt_file = .scrt1_o },
|
|
.{ .glibc_crt_file = .libc_nonshared_a },
|
|
.{ .glibc_shared_objects = {} },
|
|
});
|
|
}
|
|
if (comp.wantBuildMuslFromSource()) {
|
|
if (!target_util.canBuildLibC(comp.getTarget())) return error.LibCUnavailable;
|
|
|
|
try comp.work_queue.ensureUnusedCapacity(6);
|
|
if (musl.needsCrtiCrtn(comp.getTarget())) {
|
|
comp.work_queue.writeAssumeCapacity(&[_]Job{
|
|
.{ .musl_crt_file = .crti_o },
|
|
.{ .musl_crt_file = .crtn_o },
|
|
});
|
|
}
|
|
comp.work_queue.writeAssumeCapacity(&[_]Job{
|
|
.{ .musl_crt_file = .crt1_o },
|
|
.{ .musl_crt_file = .scrt1_o },
|
|
.{ .musl_crt_file = .rcrt1_o },
|
|
switch (comp.bin_file.options.link_mode) {
|
|
.Static => .{ .musl_crt_file = .libc_a },
|
|
.Dynamic => .{ .musl_crt_file = .libc_so },
|
|
},
|
|
});
|
|
}
|
|
if (comp.wantBuildWasiLibcFromSource()) {
|
|
if (!target_util.canBuildLibC(comp.getTarget())) return error.LibCUnavailable;
|
|
|
|
const wasi_emulated_libs = comp.bin_file.options.wasi_emulated_libs;
|
|
try comp.work_queue.ensureUnusedCapacity(wasi_emulated_libs.len + 2); // worst-case we need all components
|
|
for (wasi_emulated_libs) |crt_file| {
|
|
comp.work_queue.writeItemAssumeCapacity(.{
|
|
.wasi_libc_crt_file = crt_file,
|
|
});
|
|
}
|
|
comp.work_queue.writeAssumeCapacity(&[_]Job{
|
|
.{ .wasi_libc_crt_file = wasi_libc.execModelCrtFile(wasi_exec_model) },
|
|
.{ .wasi_libc_crt_file = .libc_a },
|
|
});
|
|
}
|
|
if (comp.wantBuildMinGWFromSource()) {
|
|
if (!target_util.canBuildLibC(comp.getTarget())) return error.LibCUnavailable;
|
|
|
|
const static_lib_jobs = [_]Job{
|
|
.{ .mingw_crt_file = .mingw32_lib },
|
|
.{ .mingw_crt_file = .msvcrt_os_lib },
|
|
.{ .mingw_crt_file = .mingwex_lib },
|
|
.{ .mingw_crt_file = .uuid_lib },
|
|
};
|
|
const crt_job: Job = .{ .mingw_crt_file = if (is_dyn_lib) .dllcrt2_o else .crt2_o };
|
|
try comp.work_queue.ensureUnusedCapacity(static_lib_jobs.len + 1);
|
|
comp.work_queue.writeAssumeCapacity(&static_lib_jobs);
|
|
comp.work_queue.writeItemAssumeCapacity(crt_job);
|
|
|
|
// When linking mingw-w64 there are some import libs we always need.
|
|
for (mingw.always_link_libs) |name| {
|
|
try comp.bin_file.options.system_libs.put(comp.gpa, name, .{});
|
|
}
|
|
}
|
|
// Generate Windows import libs.
|
|
if (comp.getTarget().os.tag == .windows) {
|
|
const count = comp.bin_file.options.system_libs.count();
|
|
try comp.work_queue.ensureUnusedCapacity(count);
|
|
var i: usize = 0;
|
|
while (i < count) : (i += 1) {
|
|
comp.work_queue.writeItemAssumeCapacity(.{ .windows_import_lib = i });
|
|
}
|
|
}
|
|
if (comp.wantBuildLibUnwindFromSource()) {
|
|
try comp.work_queue.writeItem(.{ .libunwind = {} });
|
|
}
|
|
if (build_options.have_llvm and is_exe_or_dyn_lib and comp.bin_file.options.link_libcpp) {
|
|
try comp.work_queue.writeItem(.libcxx);
|
|
try comp.work_queue.writeItem(.libcxxabi);
|
|
}
|
|
if (build_options.have_llvm and comp.bin_file.options.tsan) {
|
|
try comp.work_queue.writeItem(.libtsan);
|
|
}
|
|
|
|
// The `use_stage1` condition is here only because stage2 cannot yet build compiler-rt.
|
|
// Once it is capable this condition should be removed. When removing this condition,
|
|
// also test the use case of `build-obj -fcompiler-rt` with the self-hosted compiler
|
|
// and make sure the compiler-rt symbols are emitted. Currently this is hooked up for
|
|
// stage1 but not stage2.
|
|
const capable_of_building_compiler_rt = comp.bin_file.options.use_stage1 or
|
|
comp.bin_file.options.use_llvm;
|
|
const capable_of_building_zig_libc = comp.bin_file.options.use_stage1 or
|
|
comp.bin_file.options.use_llvm;
|
|
const capable_of_building_ssp = comp.bin_file.options.use_stage1;
|
|
|
|
if (comp.bin_file.options.include_compiler_rt and capable_of_building_compiler_rt) {
|
|
if (is_exe_or_dyn_lib) {
|
|
log.debug("queuing a job to build compiler_rt_lib", .{});
|
|
try comp.work_queue.writeItem(.{ .compiler_rt_lib = {} });
|
|
} else if (options.output_mode != .Obj) {
|
|
log.debug("queuing a job to build compiler_rt_obj", .{});
|
|
// If build-obj with -fcompiler-rt is requested, that is handled specially
|
|
// elsewhere. In this case we are making a static library, so we ask
|
|
// for a compiler-rt object to put in it.
|
|
try comp.work_queue.writeItem(.{ .compiler_rt_obj = {} });
|
|
}
|
|
}
|
|
if (needs_c_symbols) {
|
|
// MinGW provides no libssp, use our own implementation.
|
|
if (comp.getTarget().isMinGW() and capable_of_building_ssp) {
|
|
try comp.work_queue.writeItem(.{ .libssp = {} });
|
|
}
|
|
|
|
if (!comp.bin_file.options.link_libc and capable_of_building_zig_libc) {
|
|
try comp.work_queue.writeItem(.{ .zig_libc = {} });
|
|
}
|
|
}
|
|
}
|
|
|
|
if (comp.bin_file.options.use_stage1 and comp.bin_file.options.module != null) {
|
|
try comp.work_queue.writeItem(.{ .stage1_module = {} });
|
|
}
|
|
|
|
return comp;
|
|
}
|
|
|
|
pub fn destroy(self: *Compilation) void {
|
|
const optional_module = self.bin_file.options.module;
|
|
self.bin_file.destroy();
|
|
if (optional_module) |module| module.deinit();
|
|
|
|
const gpa = self.gpa;
|
|
self.work_queue.deinit();
|
|
self.anon_work_queue.deinit();
|
|
self.c_object_work_queue.deinit();
|
|
self.astgen_work_queue.deinit();
|
|
self.embed_file_work_queue.deinit();
|
|
|
|
{
|
|
var it = self.crt_files.iterator();
|
|
while (it.next()) |entry| {
|
|
gpa.free(entry.key_ptr.*);
|
|
entry.value_ptr.deinit(gpa);
|
|
}
|
|
self.crt_files.deinit(gpa);
|
|
}
|
|
|
|
if (self.libunwind_static_lib) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
if (self.libcxx_static_lib) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
if (self.libcxxabi_static_lib) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
if (self.compiler_rt_static_lib) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
if (self.compiler_rt_obj) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
if (self.libssp_static_lib) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
if (self.libc_static_lib) |*crt_file| {
|
|
crt_file.deinit(gpa);
|
|
}
|
|
|
|
if (self.glibc_so_files) |*glibc_file| {
|
|
glibc_file.deinit(gpa);
|
|
}
|
|
|
|
for (self.c_object_table.keys()) |key| {
|
|
key.destroy(gpa);
|
|
}
|
|
self.c_object_table.deinit(gpa);
|
|
|
|
for (self.failed_c_objects.values()) |value| {
|
|
value.destroy(gpa);
|
|
}
|
|
self.failed_c_objects.deinit(gpa);
|
|
|
|
self.clearMiscFailures();
|
|
|
|
self.cache_parent.manifest_dir.close();
|
|
if (self.owned_link_dir) |*dir| dir.close();
|
|
|
|
self.work_queue_wait_group.deinit();
|
|
self.astgen_wait_group.deinit();
|
|
|
|
for (self.export_symbol_names.items) |symbol_name| {
|
|
gpa.free(symbol_name);
|
|
}
|
|
self.export_symbol_names.deinit(gpa);
|
|
|
|
// This destroys `self`.
|
|
self.arena_state.promote(gpa).deinit();
|
|
}
|
|
|
|
pub fn clearMiscFailures(comp: *Compilation) void {
|
|
for (comp.misc_failures.values()) |*value| {
|
|
value.deinit(comp.gpa);
|
|
}
|
|
comp.misc_failures.deinit(comp.gpa);
|
|
comp.misc_failures = .{};
|
|
}
|
|
|
|
pub fn getTarget(self: Compilation) Target {
|
|
return self.bin_file.options.target;
|
|
}
|
|
|
|
fn restorePrevZigCacheArtifactDirectory(comp: *Compilation, directory: *Directory) void {
|
|
if (directory.path) |p| comp.gpa.free(p);
|
|
|
|
// Restore the Module's previous zig_cache_artifact_directory
|
|
// This is only for cleanup purposes; Module.deinit calls close
|
|
// on the handle of zig_cache_artifact_directory.
|
|
if (comp.bin_file.options.module) |module| {
|
|
const builtin_pkg = module.main_pkg.table.get("builtin").?;
|
|
module.zig_cache_artifact_directory = builtin_pkg.root_src_directory;
|
|
}
|
|
}
|
|
|
|
fn cleanupTmpArtifactDirectory(
|
|
comp: *Compilation,
|
|
tmp_artifact_directory: *?Directory,
|
|
tmp_dir_sub_path: []const u8,
|
|
) void {
|
|
comp.gpa.free(tmp_dir_sub_path);
|
|
if (tmp_artifact_directory.*) |*directory| {
|
|
directory.handle.close();
|
|
restorePrevZigCacheArtifactDirectory(comp, directory);
|
|
}
|
|
}
|
|
|
|
/// Detect changes to source files, perform semantic analysis, and update the output files.
|
|
pub fn update(comp: *Compilation) !void {
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
comp.clearMiscFailures();
|
|
|
|
var man: Cache.Manifest = undefined;
|
|
defer if (comp.whole_cache_manifest != null) man.deinit();
|
|
|
|
var tmp_dir_sub_path: []const u8 = &.{};
|
|
var tmp_artifact_directory: ?Directory = null;
|
|
defer cleanupTmpArtifactDirectory(comp, &tmp_artifact_directory, tmp_dir_sub_path);
|
|
|
|
// If using the whole caching strategy, we check for *everything* up front, including
|
|
// C source files.
|
|
if (comp.bin_file.options.cache_mode == .whole) {
|
|
// We are about to obtain this lock, so here we give other processes a chance first.
|
|
comp.bin_file.releaseLock();
|
|
|
|
comp.whole_cache_manifest = &man;
|
|
man = comp.cache_parent.obtain();
|
|
try comp.addNonIncrementalStuffToCacheManifest(&man);
|
|
|
|
const is_hit = man.hit() catch |err| {
|
|
// TODO properly bubble these up instead of emitting a warning
|
|
const i = man.failed_file_index orelse return err;
|
|
const file_path = man.files.items[i].path orelse return err;
|
|
std.log.warn("{s}: {s}", .{ @errorName(err), file_path });
|
|
return err;
|
|
};
|
|
if (is_hit) {
|
|
log.debug("CacheMode.whole cache hit for {s}", .{comp.bin_file.options.root_name});
|
|
const digest = man.final();
|
|
|
|
comp.wholeCacheModeSetBinFilePath(&digest);
|
|
|
|
assert(comp.bin_file.lock == null);
|
|
comp.bin_file.lock = man.toOwnedLock();
|
|
return;
|
|
}
|
|
log.debug("CacheMode.whole cache miss for {s}", .{comp.bin_file.options.root_name});
|
|
|
|
// Initialize `bin_file.emit` with a temporary Directory so that compilation can
|
|
// continue on the same path as incremental, using the temporary Directory.
|
|
tmp_artifact_directory = d: {
|
|
const s = std.fs.path.sep_str;
|
|
const rand_int = std.crypto.random.int(u64);
|
|
|
|
tmp_dir_sub_path = try std.fmt.allocPrint(comp.gpa, "tmp" ++ s ++ "{x}", .{rand_int});
|
|
|
|
const path = try comp.local_cache_directory.join(comp.gpa, &.{tmp_dir_sub_path});
|
|
errdefer comp.gpa.free(path);
|
|
|
|
const handle = try comp.local_cache_directory.handle.makeOpenPath(tmp_dir_sub_path, .{});
|
|
errdefer handle.close();
|
|
|
|
break :d .{
|
|
.path = path,
|
|
.handle = handle,
|
|
};
|
|
};
|
|
|
|
// This updates the output directory for stage1 backend and linker outputs.
|
|
if (comp.bin_file.options.module) |module| {
|
|
module.zig_cache_artifact_directory = tmp_artifact_directory.?;
|
|
}
|
|
|
|
// This resets the link.File to operate as if we called openPath() in create()
|
|
// instead of simulating -fno-emit-bin.
|
|
var options = comp.bin_file.options.move();
|
|
if (comp.whole_bin_sub_path) |sub_path| {
|
|
options.emit = .{
|
|
.directory = tmp_artifact_directory.?,
|
|
.sub_path = std.fs.path.basename(sub_path),
|
|
};
|
|
}
|
|
if (comp.whole_implib_sub_path) |sub_path| {
|
|
options.implib_emit = .{
|
|
.directory = tmp_artifact_directory.?,
|
|
.sub_path = std.fs.path.basename(sub_path),
|
|
};
|
|
}
|
|
comp.bin_file.destroy();
|
|
comp.bin_file = try link.File.openPath(comp.gpa, options);
|
|
}
|
|
|
|
// For compiling C objects, we rely on the cache hash system to avoid duplicating work.
|
|
// Add a Job for each C object.
|
|
try comp.c_object_work_queue.ensureUnusedCapacity(comp.c_object_table.count());
|
|
for (comp.c_object_table.keys()) |key| {
|
|
comp.c_object_work_queue.writeItemAssumeCapacity(key);
|
|
}
|
|
|
|
const use_stage1 = build_options.omit_stage2 or
|
|
(build_options.is_stage1 and comp.bin_file.options.use_stage1);
|
|
if (comp.bin_file.options.module) |module| {
|
|
module.compile_log_text.shrinkAndFree(module.gpa, 0);
|
|
module.generation += 1;
|
|
|
|
// Make sure std.zig is inside the import_table. We unconditionally need
|
|
// it for start.zig.
|
|
const std_pkg = module.main_pkg.table.get("std").?;
|
|
_ = try module.importPkg(std_pkg);
|
|
|
|
// Normally we rely on importing std to in turn import the root source file
|
|
// in the start code, but when using the stage1 backend that won't happen,
|
|
// so in order to run AstGen on the root source file we put it into the
|
|
// import_table here.
|
|
// Likewise, in the case of `zig test`, the test runner is the root source file,
|
|
// and so there is nothing to import the main file.
|
|
if (use_stage1 or comp.bin_file.options.is_test) {
|
|
_ = try module.importPkg(module.main_pkg);
|
|
}
|
|
|
|
// Put a work item in for every known source file to detect if
|
|
// it changed, and, if so, re-compute ZIR and then queue the job
|
|
// to update it.
|
|
// We still want AstGen work items for stage1 so that we expose compile errors
|
|
// that are implemented in stage2 but not stage1.
|
|
try comp.astgen_work_queue.ensureUnusedCapacity(module.import_table.count());
|
|
for (module.import_table.values()) |value| {
|
|
comp.astgen_work_queue.writeItemAssumeCapacity(value);
|
|
}
|
|
|
|
if (!use_stage1) {
|
|
// Put a work item in for checking if any files used with `@embedFile` changed.
|
|
{
|
|
try comp.embed_file_work_queue.ensureUnusedCapacity(module.embed_table.count());
|
|
var it = module.embed_table.iterator();
|
|
while (it.next()) |entry| {
|
|
const embed_file = entry.value_ptr.*;
|
|
comp.embed_file_work_queue.writeItemAssumeCapacity(embed_file);
|
|
}
|
|
}
|
|
|
|
try comp.work_queue.writeItem(.{ .analyze_pkg = std_pkg });
|
|
if (comp.bin_file.options.is_test) {
|
|
try comp.work_queue.writeItem(.{ .analyze_pkg = module.main_pkg });
|
|
}
|
|
}
|
|
}
|
|
|
|
try comp.performAllTheWork();
|
|
|
|
if (!use_stage1) {
|
|
if (comp.bin_file.options.module) |module| {
|
|
if (comp.bin_file.options.is_test and comp.totalErrorCount() == 0) {
|
|
// The `test_functions` decl has been intentionally postponed until now,
|
|
// at which point we must populate it with the list of test functions that
|
|
// have been discovered and not filtered out.
|
|
try module.populateTestFunctions();
|
|
}
|
|
|
|
// Process the deletion set. We use a while loop here because the
|
|
// deletion set may grow as we call `clearDecl` within this loop,
|
|
// and more unreferenced Decls are revealed.
|
|
while (module.deletion_set.count() != 0) {
|
|
const decl = module.deletion_set.keys()[0];
|
|
assert(decl.deletion_flag);
|
|
assert(decl.dependants.count() == 0);
|
|
const is_anon = if (decl.zir_decl_index == 0) blk: {
|
|
break :blk decl.src_namespace.anon_decls.swapRemove(decl);
|
|
} else false;
|
|
|
|
try module.clearDecl(decl, null);
|
|
|
|
if (is_anon) {
|
|
decl.destroy(module);
|
|
}
|
|
}
|
|
|
|
try module.processExports();
|
|
}
|
|
}
|
|
|
|
if (comp.totalErrorCount() != 0) {
|
|
// Skip flushing and keep source files loaded for error reporting.
|
|
comp.link_error_flags = .{};
|
|
return;
|
|
}
|
|
|
|
// Flush takes care of -femit-bin, but we still have -femit-llvm-ir, -femit-llvm-bc, and
|
|
// -femit-asm to handle, in the case of C objects.
|
|
comp.emitOthers();
|
|
|
|
if (comp.whole_cache_manifest != null) {
|
|
const digest = man.final();
|
|
|
|
// Rename the temporary directory into place.
|
|
var directory = tmp_artifact_directory.?;
|
|
tmp_artifact_directory = null;
|
|
|
|
directory.handle.close();
|
|
defer restorePrevZigCacheArtifactDirectory(comp, &directory);
|
|
|
|
const o_sub_path = try std.fs.path.join(comp.gpa, &[_][]const u8{ "o", &digest });
|
|
defer comp.gpa.free(o_sub_path);
|
|
|
|
try comp.bin_file.renameTmpIntoCache(comp.local_cache_directory, tmp_dir_sub_path, o_sub_path);
|
|
comp.wholeCacheModeSetBinFilePath(&digest);
|
|
|
|
// This is intentionally sandwiched between renameTmpIntoCache() and writeManifest().
|
|
if (comp.bin_file.options.module) |module| {
|
|
// We need to set the zig_cache_artifact_directory for -femit-asm, -femit-llvm-ir,
|
|
// etc to know where to output to.
|
|
var artifact_dir = try comp.local_cache_directory.handle.openDir(o_sub_path, .{});
|
|
defer artifact_dir.close();
|
|
|
|
var dir_path = try comp.local_cache_directory.join(comp.gpa, &.{o_sub_path});
|
|
defer comp.gpa.free(dir_path);
|
|
|
|
module.zig_cache_artifact_directory = .{
|
|
.handle = artifact_dir,
|
|
.path = dir_path,
|
|
};
|
|
|
|
try comp.flush();
|
|
} else {
|
|
try comp.flush();
|
|
}
|
|
|
|
// Failure here only means an unnecessary cache miss.
|
|
man.writeManifest() catch |err| {
|
|
log.warn("failed to write cache manifest: {s}", .{@errorName(err)});
|
|
};
|
|
|
|
assert(comp.bin_file.lock == null);
|
|
comp.bin_file.lock = man.toOwnedLock();
|
|
} else {
|
|
try comp.flush();
|
|
}
|
|
|
|
// Unload all source files to save memory.
|
|
// The ZIR needs to stay loaded in memory because (1) Decl objects contain references
|
|
// to it, and (2) generic instantiations, comptime calls, inline calls will need
|
|
// to reference the ZIR.
|
|
if (!comp.keep_source_files_loaded) {
|
|
if (comp.bin_file.options.module) |module| {
|
|
for (module.import_table.values()) |file| {
|
|
file.unloadTree(comp.gpa);
|
|
file.unloadSource(comp.gpa);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn flush(comp: *Compilation) !void {
|
|
try comp.bin_file.flush(comp); // This is needed before reading the error flags.
|
|
comp.link_error_flags = comp.bin_file.errorFlags();
|
|
|
|
const use_stage1 = build_options.omit_stage2 or
|
|
(build_options.is_stage1 and comp.bin_file.options.use_stage1);
|
|
if (!use_stage1) {
|
|
if (comp.bin_file.options.module) |module| {
|
|
try link.File.C.flushEmitH(module);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Communicate the output binary location to parent Compilations.
|
|
fn wholeCacheModeSetBinFilePath(comp: *Compilation, digest: *const [Cache.hex_digest_len]u8) void {
|
|
const digest_start = 2; // "o/[digest]/[basename]"
|
|
|
|
if (comp.whole_bin_sub_path) |sub_path| {
|
|
mem.copy(u8, sub_path[digest_start..], digest);
|
|
|
|
comp.bin_file.options.emit = .{
|
|
.directory = comp.local_cache_directory,
|
|
.sub_path = sub_path,
|
|
};
|
|
}
|
|
|
|
if (comp.whole_implib_sub_path) |sub_path| {
|
|
mem.copy(u8, sub_path[digest_start..], digest);
|
|
|
|
comp.bin_file.options.implib_emit = .{
|
|
.directory = comp.local_cache_directory,
|
|
.sub_path = sub_path,
|
|
};
|
|
}
|
|
}
|
|
|
|
fn prepareWholeEmitSubPath(arena: Allocator, opt_emit: ?EmitLoc) error{OutOfMemory}!?[]u8 {
|
|
const emit = opt_emit orelse return null;
|
|
if (emit.directory != null) return null;
|
|
const s = std.fs.path.sep_str;
|
|
const format = "o" ++ s ++ ("x" ** Cache.hex_digest_len) ++ s ++ "{s}";
|
|
return try std.fmt.allocPrint(arena, format, .{emit.basename});
|
|
}
|
|
|
|
/// This is only observed at compile-time and used to emit a compile error
|
|
/// to remind the programmer to update multiple related pieces of code that
|
|
/// are in different locations. Bump this number when adding or deleting
|
|
/// anything from the link cache manifest.
|
|
pub const link_hash_implementation_version = 2;
|
|
|
|
fn addNonIncrementalStuffToCacheManifest(comp: *Compilation, man: *Cache.Manifest) !void {
|
|
const gpa = comp.gpa;
|
|
const target = comp.getTarget();
|
|
|
|
var arena_allocator = std.heap.ArenaAllocator.init(gpa);
|
|
defer arena_allocator.deinit();
|
|
const arena = arena_allocator.allocator();
|
|
|
|
comptime assert(link_hash_implementation_version == 2);
|
|
|
|
if (comp.bin_file.options.module) |mod| {
|
|
const main_zig_file = try mod.main_pkg.root_src_directory.join(arena, &[_][]const u8{
|
|
mod.main_pkg.root_src_path,
|
|
});
|
|
_ = try man.addFile(main_zig_file, null);
|
|
{
|
|
var seen_table = std.AutoHashMap(*Package, void).init(arena);
|
|
|
|
// Skip builtin.zig; it is useless as an input, and we don't want to have to
|
|
// write it before checking for a cache hit.
|
|
const builtin_pkg = mod.main_pkg.table.get("builtin").?;
|
|
try seen_table.put(builtin_pkg, {});
|
|
|
|
try addPackageTableToCacheHash(&man.hash, &arena_allocator, mod.main_pkg.table, &seen_table, .{ .files = man });
|
|
}
|
|
|
|
// Synchronize with other matching comments: ZigOnlyHashStuff
|
|
man.hash.add(comp.bin_file.options.valgrind);
|
|
man.hash.add(comp.bin_file.options.single_threaded);
|
|
man.hash.add(comp.bin_file.options.use_stage1);
|
|
man.hash.add(comp.bin_file.options.use_llvm);
|
|
man.hash.add(comp.bin_file.options.dll_export_fns);
|
|
man.hash.add(comp.bin_file.options.is_test);
|
|
man.hash.add(comp.test_evented_io);
|
|
man.hash.addOptionalBytes(comp.test_filter);
|
|
man.hash.addOptionalBytes(comp.test_name_prefix);
|
|
man.hash.add(comp.bin_file.options.skip_linker_dependencies);
|
|
man.hash.add(comp.bin_file.options.parent_compilation_link_libc);
|
|
man.hash.add(mod.emit_h != null);
|
|
}
|
|
|
|
try man.addOptionalFile(comp.bin_file.options.linker_script);
|
|
try man.addOptionalFile(comp.bin_file.options.version_script);
|
|
|
|
for (comp.bin_file.options.objects) |obj| {
|
|
_ = try man.addFile(obj.path, null);
|
|
man.hash.add(obj.must_link);
|
|
}
|
|
|
|
for (comp.c_object_table.keys()) |key| {
|
|
_ = try man.addFile(key.src.src_path, null);
|
|
man.hash.addListOfBytes(key.src.extra_flags);
|
|
}
|
|
|
|
man.hash.addOptionalEmitLoc(comp.emit_asm);
|
|
man.hash.addOptionalEmitLoc(comp.emit_llvm_ir);
|
|
man.hash.addOptionalEmitLoc(comp.emit_llvm_bc);
|
|
man.hash.addOptionalEmitLoc(comp.emit_analysis);
|
|
man.hash.addOptionalEmitLoc(comp.emit_docs);
|
|
|
|
man.hash.addListOfBytes(comp.clang_argv);
|
|
|
|
man.hash.addOptional(comp.bin_file.options.stack_size_override);
|
|
man.hash.addOptional(comp.bin_file.options.image_base_override);
|
|
man.hash.addOptional(comp.bin_file.options.gc_sections);
|
|
man.hash.add(comp.bin_file.options.eh_frame_hdr);
|
|
man.hash.add(comp.bin_file.options.emit_relocs);
|
|
man.hash.add(comp.bin_file.options.rdynamic);
|
|
man.hash.addListOfBytes(comp.bin_file.options.lib_dirs);
|
|
man.hash.addListOfBytes(comp.bin_file.options.rpath_list);
|
|
man.hash.add(comp.bin_file.options.each_lib_rpath);
|
|
man.hash.add(comp.bin_file.options.skip_linker_dependencies);
|
|
man.hash.add(comp.bin_file.options.z_nodelete);
|
|
man.hash.add(comp.bin_file.options.z_notext);
|
|
man.hash.add(comp.bin_file.options.z_defs);
|
|
man.hash.add(comp.bin_file.options.z_origin);
|
|
man.hash.add(comp.bin_file.options.z_noexecstack);
|
|
man.hash.add(comp.bin_file.options.z_now);
|
|
man.hash.add(comp.bin_file.options.z_relro);
|
|
man.hash.add(comp.bin_file.options.hash_style);
|
|
man.hash.add(comp.bin_file.options.include_compiler_rt);
|
|
if (comp.bin_file.options.link_libc) {
|
|
man.hash.add(comp.bin_file.options.libc_installation != null);
|
|
if (comp.bin_file.options.libc_installation) |libc_installation| {
|
|
man.hash.addBytes(libc_installation.crt_dir.?);
|
|
if (target.abi == .msvc) {
|
|
man.hash.addBytes(libc_installation.msvc_lib_dir.?);
|
|
man.hash.addBytes(libc_installation.kernel32_lib_dir.?);
|
|
}
|
|
}
|
|
man.hash.addOptionalBytes(comp.bin_file.options.dynamic_linker);
|
|
}
|
|
man.hash.addOptionalBytes(comp.bin_file.options.soname);
|
|
man.hash.addOptional(comp.bin_file.options.version);
|
|
link.hashAddSystemLibs(&man.hash, comp.bin_file.options.system_libs);
|
|
man.hash.addOptional(comp.bin_file.options.allow_shlib_undefined);
|
|
man.hash.add(comp.bin_file.options.bind_global_refs_locally);
|
|
man.hash.add(comp.bin_file.options.tsan);
|
|
man.hash.addOptionalBytes(comp.bin_file.options.sysroot);
|
|
man.hash.add(comp.bin_file.options.linker_optimization);
|
|
|
|
// WASM specific stuff
|
|
man.hash.add(comp.bin_file.options.import_memory);
|
|
man.hash.addOptional(comp.bin_file.options.initial_memory);
|
|
man.hash.addOptional(comp.bin_file.options.max_memory);
|
|
man.hash.add(comp.bin_file.options.shared_memory);
|
|
man.hash.addOptional(comp.bin_file.options.global_base);
|
|
|
|
// Mach-O specific stuff
|
|
man.hash.addListOfBytes(comp.bin_file.options.framework_dirs);
|
|
man.hash.addListOfBytes(comp.bin_file.options.frameworks);
|
|
try man.addOptionalFile(comp.bin_file.options.entitlements);
|
|
|
|
// COFF specific stuff
|
|
man.hash.addOptional(comp.bin_file.options.subsystem);
|
|
man.hash.add(comp.bin_file.options.tsaware);
|
|
man.hash.add(comp.bin_file.options.nxcompat);
|
|
man.hash.add(comp.bin_file.options.dynamicbase);
|
|
man.hash.addOptional(comp.bin_file.options.major_subsystem_version);
|
|
man.hash.addOptional(comp.bin_file.options.minor_subsystem_version);
|
|
}
|
|
|
|
fn emitOthers(comp: *Compilation) void {
|
|
if (comp.bin_file.options.output_mode != .Obj or comp.bin_file.options.module != null or
|
|
comp.c_object_table.count() == 0)
|
|
{
|
|
return;
|
|
}
|
|
const obj_path = comp.c_object_table.keys()[0].status.success.object_path;
|
|
const cwd = std.fs.cwd();
|
|
const ext = std.fs.path.extension(obj_path);
|
|
const basename = obj_path[0 .. obj_path.len - ext.len];
|
|
// This obj path always ends with the object file extension, but if we change the
|
|
// extension to .ll, .bc, or .s, then it will be the path to those things.
|
|
const outs = [_]struct {
|
|
emit: ?EmitLoc,
|
|
ext: []const u8,
|
|
}{
|
|
.{ .emit = comp.emit_asm, .ext = ".s" },
|
|
.{ .emit = comp.emit_llvm_ir, .ext = ".ll" },
|
|
.{ .emit = comp.emit_llvm_bc, .ext = ".bc" },
|
|
};
|
|
for (outs) |out| {
|
|
if (out.emit) |loc| {
|
|
if (loc.directory) |directory| {
|
|
const src_path = std.fmt.allocPrint(comp.gpa, "{s}{s}", .{
|
|
basename, out.ext,
|
|
}) catch |err| {
|
|
log.err("unable to copy {s}{s}: {s}", .{ basename, out.ext, @errorName(err) });
|
|
continue;
|
|
};
|
|
defer comp.gpa.free(src_path);
|
|
cwd.copyFile(src_path, directory.handle, loc.basename, .{}) catch |err| {
|
|
log.err("unable to copy {s}: {s}", .{ src_path, @errorName(err) });
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Having the file open for writing is problematic as far as executing the
|
|
/// binary is concerned. This will remove the write flag, or close the file,
|
|
/// or whatever is needed so that it can be executed.
|
|
/// After this, one must call` makeFileWritable` before calling `update`.
|
|
pub fn makeBinFileExecutable(self: *Compilation) !void {
|
|
return self.bin_file.makeExecutable();
|
|
}
|
|
|
|
pub fn makeBinFileWritable(self: *Compilation) !void {
|
|
return self.bin_file.makeWritable();
|
|
}
|
|
|
|
pub fn totalErrorCount(self: *Compilation) usize {
|
|
var total: usize = self.failed_c_objects.count() + self.misc_failures.count();
|
|
|
|
if (self.bin_file.options.module) |module| {
|
|
total += module.failed_exports.count();
|
|
total += module.failed_embed_files.count();
|
|
|
|
{
|
|
var it = module.failed_files.iterator();
|
|
while (it.next()) |entry| {
|
|
if (entry.value_ptr.*) |_| {
|
|
total += 1;
|
|
} else {
|
|
const file = entry.key_ptr.*;
|
|
assert(file.zir_loaded);
|
|
const payload_index = file.zir.extra[@enumToInt(Zir.ExtraIndex.compile_errors)];
|
|
assert(payload_index != 0);
|
|
const header = file.zir.extraData(Zir.Inst.CompileErrors, payload_index);
|
|
total += header.data.items_len;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Skip errors for Decls within files that failed parsing.
|
|
// When a parse error is introduced, we keep all the semantic analysis for
|
|
// the previous parse success, including compile errors, but we cannot
|
|
// emit them until the file succeeds parsing.
|
|
for (module.failed_decls.keys()) |key| {
|
|
if (key.getFileScope().okToReportErrors()) {
|
|
total += 1;
|
|
}
|
|
}
|
|
if (module.emit_h) |emit_h| {
|
|
for (emit_h.failed_decls.keys()) |key| {
|
|
if (key.getFileScope().okToReportErrors()) {
|
|
total += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// The "no entry point found" error only counts if there are no other errors.
|
|
if (total == 0) {
|
|
total += @boolToInt(self.link_error_flags.no_entry_point_found);
|
|
}
|
|
|
|
// Compile log errors only count if there are no other errors.
|
|
if (total == 0) {
|
|
if (self.bin_file.options.module) |module| {
|
|
total += @boolToInt(module.compile_log_decls.count() != 0);
|
|
}
|
|
}
|
|
|
|
return total;
|
|
}
|
|
|
|
pub fn getAllErrorsAlloc(self: *Compilation) !AllErrors {
|
|
var arena = std.heap.ArenaAllocator.init(self.gpa);
|
|
errdefer arena.deinit();
|
|
const arena_allocator = arena.allocator();
|
|
|
|
var errors = std.ArrayList(AllErrors.Message).init(self.gpa);
|
|
defer errors.deinit();
|
|
|
|
{
|
|
var it = self.failed_c_objects.iterator();
|
|
while (it.next()) |entry| {
|
|
const c_object = entry.key_ptr.*;
|
|
const err_msg = entry.value_ptr.*;
|
|
// TODO these fields will need to be adjusted when we have proper
|
|
// C error reporting bubbling up.
|
|
try errors.append(.{
|
|
.src = .{
|
|
.src_path = try arena_allocator.dupe(u8, c_object.src.src_path),
|
|
.msg = try std.fmt.allocPrint(arena_allocator, "unable to build C object: {s}", .{
|
|
err_msg.msg,
|
|
}),
|
|
.byte_offset = 0,
|
|
.line = err_msg.line,
|
|
.column = err_msg.column,
|
|
.source_line = null, // TODO
|
|
},
|
|
});
|
|
}
|
|
}
|
|
for (self.misc_failures.values()) |*value| {
|
|
try AllErrors.addPlainWithChildren(&arena, &errors, value.msg, value.children);
|
|
}
|
|
if (self.bin_file.options.module) |module| {
|
|
{
|
|
var it = module.failed_files.iterator();
|
|
while (it.next()) |entry| {
|
|
if (entry.value_ptr.*) |msg| {
|
|
try AllErrors.add(module, &arena, &errors, msg.*);
|
|
} else {
|
|
// Must be ZIR errors. In order for ZIR errors to exist, the parsing
|
|
// must have completed successfully.
|
|
const tree = try entry.key_ptr.*.getTree(module.gpa);
|
|
assert(tree.errors.len == 0);
|
|
try AllErrors.addZir(arena_allocator, &errors, entry.key_ptr.*);
|
|
}
|
|
}
|
|
}
|
|
{
|
|
var it = module.failed_embed_files.iterator();
|
|
while (it.next()) |entry| {
|
|
const msg = entry.value_ptr.*;
|
|
try AllErrors.add(module, &arena, &errors, msg.*);
|
|
}
|
|
}
|
|
{
|
|
var it = module.failed_decls.iterator();
|
|
while (it.next()) |entry| {
|
|
// Skip errors for Decls within files that had a parse failure.
|
|
// We'll try again once parsing succeeds.
|
|
if (entry.key_ptr.*.getFileScope().okToReportErrors()) {
|
|
try AllErrors.add(module, &arena, &errors, entry.value_ptr.*.*);
|
|
}
|
|
}
|
|
}
|
|
if (module.emit_h) |emit_h| {
|
|
var it = emit_h.failed_decls.iterator();
|
|
while (it.next()) |entry| {
|
|
// Skip errors for Decls within files that had a parse failure.
|
|
// We'll try again once parsing succeeds.
|
|
if (entry.key_ptr.*.getFileScope().okToReportErrors()) {
|
|
try AllErrors.add(module, &arena, &errors, entry.value_ptr.*.*);
|
|
}
|
|
}
|
|
}
|
|
for (module.failed_exports.values()) |value| {
|
|
try AllErrors.add(module, &arena, &errors, value.*);
|
|
}
|
|
}
|
|
|
|
if (errors.items.len == 0 and self.link_error_flags.no_entry_point_found) {
|
|
try errors.append(.{
|
|
.plain = .{
|
|
.msg = try std.fmt.allocPrint(arena_allocator, "no entry point found", .{}),
|
|
},
|
|
});
|
|
}
|
|
|
|
if (self.bin_file.options.module) |module| {
|
|
if (errors.items.len == 0 and module.compile_log_decls.count() != 0) {
|
|
const keys = module.compile_log_decls.keys();
|
|
const values = module.compile_log_decls.values();
|
|
// First one will be the error; subsequent ones will be notes.
|
|
const src_loc = keys[0].nodeOffsetSrcLoc(values[0]);
|
|
const err_msg = Module.ErrorMsg{
|
|
.src_loc = src_loc,
|
|
.msg = "found compile log statement",
|
|
.notes = try self.gpa.alloc(Module.ErrorMsg, module.compile_log_decls.count() - 1),
|
|
};
|
|
defer self.gpa.free(err_msg.notes);
|
|
|
|
for (keys[1..]) |key, i| {
|
|
err_msg.notes[i] = .{
|
|
.src_loc = key.nodeOffsetSrcLoc(values[i + 1]),
|
|
.msg = "also here",
|
|
};
|
|
}
|
|
|
|
try AllErrors.add(module, &arena, &errors, err_msg);
|
|
}
|
|
}
|
|
|
|
assert(errors.items.len == self.totalErrorCount());
|
|
|
|
return AllErrors{
|
|
.list = try arena_allocator.dupe(AllErrors.Message, errors.items),
|
|
.arena = arena.state,
|
|
};
|
|
}
|
|
|
|
pub fn getCompileLogOutput(self: *Compilation) []const u8 {
|
|
const module = self.bin_file.options.module orelse return &[0]u8{};
|
|
return module.compile_log_text.items;
|
|
}
|
|
|
|
pub fn performAllTheWork(self: *Compilation) error{ TimerUnsupported, OutOfMemory }!void {
|
|
// If the terminal is dumb, we dont want to show the user all the
|
|
// output.
|
|
var progress: std.Progress = .{ .dont_print_on_dumb = true };
|
|
var main_progress_node = progress.start("", 0);
|
|
defer main_progress_node.end();
|
|
if (self.color == .off) progress.terminal = null;
|
|
|
|
// Here we queue up all the AstGen tasks first, followed by C object compilation.
|
|
// We wait until the AstGen tasks are all completed before proceeding to the
|
|
// (at least for now) single-threaded main work queue. However, C object compilation
|
|
// only needs to be finished by the end of this function.
|
|
|
|
var zir_prog_node = main_progress_node.start("AST Lowering", 0);
|
|
defer zir_prog_node.end();
|
|
|
|
var c_obj_prog_node = main_progress_node.start("Compile C Objects", self.c_source_files.len);
|
|
defer c_obj_prog_node.end();
|
|
|
|
var embed_file_prog_node = main_progress_node.start("Detect @embedFile updates", self.embed_file_work_queue.count);
|
|
defer embed_file_prog_node.end();
|
|
|
|
self.work_queue_wait_group.reset();
|
|
defer self.work_queue_wait_group.wait();
|
|
|
|
{
|
|
const astgen_frame = tracy.namedFrame("astgen");
|
|
defer astgen_frame.end();
|
|
|
|
self.astgen_wait_group.reset();
|
|
defer self.astgen_wait_group.wait();
|
|
|
|
// builtin.zig is handled specially for two reasons:
|
|
// 1. to avoid race condition of zig processes truncating each other's builtin.zig files
|
|
// 2. optimization; in the hot path it only incurs a stat() syscall, which happens
|
|
// in the `astgen_wait_group`.
|
|
if (self.bin_file.options.module) |mod| {
|
|
if (mod.job_queued_update_builtin_zig) {
|
|
mod.job_queued_update_builtin_zig = false;
|
|
|
|
self.astgen_wait_group.start();
|
|
try self.thread_pool.spawn(workerUpdateBuiltinZigFile, .{
|
|
self, mod, &self.astgen_wait_group,
|
|
});
|
|
}
|
|
}
|
|
|
|
while (self.astgen_work_queue.readItem()) |file| {
|
|
self.astgen_wait_group.start();
|
|
try self.thread_pool.spawn(workerAstGenFile, .{
|
|
self, file, &zir_prog_node, &self.astgen_wait_group, .root,
|
|
});
|
|
}
|
|
|
|
while (self.embed_file_work_queue.readItem()) |embed_file| {
|
|
self.astgen_wait_group.start();
|
|
try self.thread_pool.spawn(workerCheckEmbedFile, .{
|
|
self, embed_file, &embed_file_prog_node, &self.astgen_wait_group,
|
|
});
|
|
}
|
|
|
|
while (self.c_object_work_queue.readItem()) |c_object| {
|
|
self.work_queue_wait_group.start();
|
|
try self.thread_pool.spawn(workerUpdateCObject, .{
|
|
self, c_object, &c_obj_prog_node, &self.work_queue_wait_group,
|
|
});
|
|
}
|
|
}
|
|
|
|
const use_stage1 = build_options.is_stage1 and self.bin_file.options.use_stage1;
|
|
if (!use_stage1) {
|
|
const outdated_and_deleted_decls_frame = tracy.namedFrame("outdated_and_deleted_decls");
|
|
defer outdated_and_deleted_decls_frame.end();
|
|
|
|
// Iterate over all the files and look for outdated and deleted declarations.
|
|
if (self.bin_file.options.module) |mod| {
|
|
try mod.processOutdatedAndDeletedDecls();
|
|
}
|
|
} else if (self.bin_file.options.module) |mod| {
|
|
// If there are any AstGen compile errors, report them now to avoid
|
|
// hitting stage1 bugs.
|
|
if (mod.failed_files.count() != 0) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
// In this main loop we give priority to non-anonymous Decls in the work queue, so
|
|
// that they can establish references to anonymous Decls, setting alive=true in the
|
|
// backend, preventing anonymous Decls from being prematurely destroyed.
|
|
while (true) {
|
|
if (self.work_queue.readItem()) |work_item| {
|
|
try processOneJob(self, work_item, main_progress_node);
|
|
continue;
|
|
}
|
|
if (self.anon_work_queue.readItem()) |work_item| {
|
|
try processOneJob(self, work_item, main_progress_node);
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
fn processOneJob(comp: *Compilation, job: Job, main_progress_node: *std.Progress.Node) !void {
|
|
switch (job) {
|
|
.codegen_decl => |decl| switch (decl.analysis) {
|
|
.unreferenced => unreachable,
|
|
.in_progress => unreachable,
|
|
.outdated => unreachable,
|
|
|
|
.file_failure,
|
|
.sema_failure,
|
|
.codegen_failure,
|
|
.dependency_failure,
|
|
.sema_failure_retryable,
|
|
=> return,
|
|
|
|
.complete, .codegen_failure_retryable => {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("codegen_decl");
|
|
defer named_frame.end();
|
|
|
|
const module = comp.bin_file.options.module.?;
|
|
assert(decl.has_tv);
|
|
|
|
if (decl.alive) {
|
|
try module.linkerUpdateDecl(decl);
|
|
return;
|
|
}
|
|
|
|
// Instead of sending this decl to the linker, we actually will delete it
|
|
// because we found out that it in fact was never referenced.
|
|
module.deleteUnusedDecl(decl);
|
|
return;
|
|
},
|
|
},
|
|
.codegen_func => |func| {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("codegen_func");
|
|
defer named_frame.end();
|
|
|
|
const module = comp.bin_file.options.module.?;
|
|
module.ensureFuncBodyAnalyzed(func) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.AnalysisFail => return,
|
|
};
|
|
},
|
|
.emit_h_decl => |decl| switch (decl.analysis) {
|
|
.unreferenced => unreachable,
|
|
.in_progress => unreachable,
|
|
.outdated => unreachable,
|
|
|
|
.file_failure,
|
|
.sema_failure,
|
|
.dependency_failure,
|
|
.sema_failure_retryable,
|
|
=> return,
|
|
|
|
// emit-h only requires semantic analysis of the Decl to be complete,
|
|
// it does not depend on machine code generation to succeed.
|
|
.codegen_failure, .codegen_failure_retryable, .complete => {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("emit_h_decl");
|
|
defer named_frame.end();
|
|
|
|
const gpa = comp.gpa;
|
|
const module = comp.bin_file.options.module.?;
|
|
const emit_h = module.emit_h.?;
|
|
_ = try emit_h.decl_table.getOrPut(gpa, decl);
|
|
const decl_emit_h = decl.getEmitH(module);
|
|
const fwd_decl = &decl_emit_h.fwd_decl;
|
|
fwd_decl.shrinkRetainingCapacity(0);
|
|
var typedefs_arena = std.heap.ArenaAllocator.init(gpa);
|
|
defer typedefs_arena.deinit();
|
|
|
|
var dg: c_codegen.DeclGen = .{
|
|
.gpa = gpa,
|
|
.module = module,
|
|
.error_msg = null,
|
|
.decl = decl,
|
|
.fwd_decl = fwd_decl.toManaged(gpa),
|
|
.typedefs = c_codegen.TypedefMap.initContext(gpa, .{
|
|
.target = comp.getTarget(),
|
|
}),
|
|
.typedefs_arena = typedefs_arena.allocator(),
|
|
};
|
|
defer dg.fwd_decl.deinit();
|
|
defer dg.typedefs.deinit();
|
|
|
|
c_codegen.genHeader(&dg) catch |err| switch (err) {
|
|
error.AnalysisFail => {
|
|
try emit_h.failed_decls.put(gpa, decl, dg.error_msg.?);
|
|
return;
|
|
},
|
|
else => |e| return e,
|
|
};
|
|
|
|
fwd_decl.* = dg.fwd_decl.moveToUnmanaged();
|
|
fwd_decl.shrinkAndFree(gpa, fwd_decl.items.len);
|
|
},
|
|
},
|
|
.analyze_decl => |decl| {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("analyze_decl");
|
|
defer named_frame.end();
|
|
|
|
const module = comp.bin_file.options.module.?;
|
|
module.ensureDeclAnalyzed(decl) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.AnalysisFail => return,
|
|
};
|
|
},
|
|
.update_embed_file => |embed_file| {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("update_embed_file");
|
|
defer named_frame.end();
|
|
|
|
const module = comp.bin_file.options.module.?;
|
|
module.updateEmbedFile(embed_file) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.AnalysisFail => return,
|
|
};
|
|
},
|
|
.update_line_number => |decl| {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("update_line_number");
|
|
defer named_frame.end();
|
|
|
|
const gpa = comp.gpa;
|
|
const module = comp.bin_file.options.module.?;
|
|
comp.bin_file.updateDeclLineNumber(module, decl) catch |err| {
|
|
try module.failed_decls.ensureUnusedCapacity(gpa, 1);
|
|
module.failed_decls.putAssumeCapacityNoClobber(decl, try Module.ErrorMsg.create(
|
|
gpa,
|
|
decl.srcLoc(),
|
|
"unable to update line number: {s}",
|
|
.{@errorName(err)},
|
|
));
|
|
decl.analysis = .codegen_failure_retryable;
|
|
};
|
|
},
|
|
.analyze_pkg => |pkg| {
|
|
if (build_options.omit_stage2)
|
|
@panic("sadly stage2 is omitted from this build to save memory on the CI server");
|
|
|
|
const named_frame = tracy.namedFrame("analyze_pkg");
|
|
defer named_frame.end();
|
|
|
|
const module = comp.bin_file.options.module.?;
|
|
module.semaPkg(pkg) catch |err| switch (err) {
|
|
error.CurrentWorkingDirectoryUnlinked,
|
|
error.Unexpected,
|
|
=> try comp.setMiscFailure(
|
|
.analyze_pkg,
|
|
"unexpected problem analyzing package '{s}'",
|
|
.{pkg.root_src_path},
|
|
),
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.AnalysisFail => return,
|
|
};
|
|
},
|
|
.glibc_crt_file => |crt_file| {
|
|
const named_frame = tracy.namedFrame("glibc_crt_file");
|
|
defer named_frame.end();
|
|
|
|
glibc.buildCRTFile(comp, crt_file) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(.glibc_crt_file, "unable to build glibc CRT file: {s}", .{
|
|
@errorName(err),
|
|
});
|
|
};
|
|
},
|
|
.glibc_shared_objects => {
|
|
const named_frame = tracy.namedFrame("glibc_shared_objects");
|
|
defer named_frame.end();
|
|
|
|
glibc.buildSharedObjects(comp) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.glibc_shared_objects,
|
|
"unable to build glibc shared objects: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.musl_crt_file => |crt_file| {
|
|
const named_frame = tracy.namedFrame("musl_crt_file");
|
|
defer named_frame.end();
|
|
|
|
musl.buildCRTFile(comp, crt_file) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.musl_crt_file,
|
|
"unable to build musl CRT file: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.mingw_crt_file => |crt_file| {
|
|
const named_frame = tracy.namedFrame("mingw_crt_file");
|
|
defer named_frame.end();
|
|
|
|
mingw.buildCRTFile(comp, crt_file) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.mingw_crt_file,
|
|
"unable to build mingw-w64 CRT file: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.windows_import_lib => |index| {
|
|
const named_frame = tracy.namedFrame("windows_import_lib");
|
|
defer named_frame.end();
|
|
|
|
const link_lib = comp.bin_file.options.system_libs.keys()[index];
|
|
mingw.buildImportLib(comp, link_lib) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.windows_import_lib,
|
|
"unable to generate DLL import .lib file: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.libunwind => {
|
|
const named_frame = tracy.namedFrame("libunwind");
|
|
defer named_frame.end();
|
|
|
|
libunwind.buildStaticLib(comp) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.libunwind,
|
|
"unable to build libunwind: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.libcxx => {
|
|
const named_frame = tracy.namedFrame("libcxx");
|
|
defer named_frame.end();
|
|
|
|
libcxx.buildLibCXX(comp) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.libcxx,
|
|
"unable to build libcxx: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.libcxxabi => {
|
|
const named_frame = tracy.namedFrame("libcxxabi");
|
|
defer named_frame.end();
|
|
|
|
libcxx.buildLibCXXABI(comp) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.libcxxabi,
|
|
"unable to build libcxxabi: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.libtsan => {
|
|
const named_frame = tracy.namedFrame("libtsan");
|
|
defer named_frame.end();
|
|
|
|
libtsan.buildTsan(comp) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.libtsan,
|
|
"unable to build TSAN library: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.wasi_libc_crt_file => |crt_file| {
|
|
const named_frame = tracy.namedFrame("wasi_libc_crt_file");
|
|
defer named_frame.end();
|
|
|
|
wasi_libc.buildCRTFile(comp, crt_file) catch |err| {
|
|
// TODO Surface more error details.
|
|
try comp.setMiscFailure(
|
|
.wasi_libc_crt_file,
|
|
"unable to build WASI libc CRT file: {s}",
|
|
.{@errorName(err)},
|
|
);
|
|
};
|
|
},
|
|
.compiler_rt_lib => {
|
|
const named_frame = tracy.namedFrame("compiler_rt_lib");
|
|
defer named_frame.end();
|
|
|
|
comp.buildOutputFromZig(
|
|
"compiler_rt.zig",
|
|
.Lib,
|
|
&comp.compiler_rt_static_lib,
|
|
.compiler_rt,
|
|
) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.SubCompilationFailed => return, // error reported already
|
|
else => try comp.setMiscFailure(
|
|
.compiler_rt,
|
|
"unable to build compiler_rt: {s}",
|
|
.{@errorName(err)},
|
|
),
|
|
};
|
|
},
|
|
.compiler_rt_obj => {
|
|
const named_frame = tracy.namedFrame("compiler_rt_obj");
|
|
defer named_frame.end();
|
|
|
|
comp.buildOutputFromZig(
|
|
"compiler_rt.zig",
|
|
.Obj,
|
|
&comp.compiler_rt_obj,
|
|
.compiler_rt,
|
|
) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.SubCompilationFailed => return, // error reported already
|
|
else => try comp.setMiscFailure(
|
|
.compiler_rt,
|
|
"unable to build compiler_rt: {s}",
|
|
.{@errorName(err)},
|
|
),
|
|
};
|
|
},
|
|
.libssp => {
|
|
const named_frame = tracy.namedFrame("libssp");
|
|
defer named_frame.end();
|
|
|
|
comp.buildOutputFromZig(
|
|
"ssp.zig",
|
|
.Lib,
|
|
&comp.libssp_static_lib,
|
|
.libssp,
|
|
) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.SubCompilationFailed => return, // error reported already
|
|
else => try comp.setMiscFailure(
|
|
.libssp,
|
|
"unable to build libssp: {s}",
|
|
.{@errorName(err)},
|
|
),
|
|
};
|
|
},
|
|
.zig_libc => {
|
|
const named_frame = tracy.namedFrame("zig_libc");
|
|
defer named_frame.end();
|
|
|
|
comp.buildOutputFromZig(
|
|
"c.zig",
|
|
.Lib,
|
|
&comp.libc_static_lib,
|
|
.zig_libc,
|
|
) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.SubCompilationFailed => return, // error reported already
|
|
else => try comp.setMiscFailure(
|
|
.zig_libc,
|
|
"unable to build zig's multitarget libc: {s}",
|
|
.{@errorName(err)},
|
|
),
|
|
};
|
|
},
|
|
.stage1_module => {
|
|
const named_frame = tracy.namedFrame("stage1_module");
|
|
defer named_frame.end();
|
|
|
|
if (!build_options.is_stage1)
|
|
unreachable;
|
|
|
|
comp.updateStage1Module(main_progress_node) catch |err| {
|
|
fatal("unable to build stage1 zig object: {s}", .{@errorName(err)});
|
|
};
|
|
},
|
|
}
|
|
}
|
|
|
|
const AstGenSrc = union(enum) {
|
|
root,
|
|
import: struct {
|
|
importing_file: *Module.File,
|
|
import_tok: std.zig.Ast.TokenIndex,
|
|
},
|
|
};
|
|
|
|
fn workerAstGenFile(
|
|
comp: *Compilation,
|
|
file: *Module.File,
|
|
prog_node: *std.Progress.Node,
|
|
wg: *WaitGroup,
|
|
src: AstGenSrc,
|
|
) void {
|
|
defer wg.finish();
|
|
|
|
var child_prog_node = prog_node.start(file.sub_file_path, 0);
|
|
child_prog_node.activate();
|
|
defer child_prog_node.end();
|
|
|
|
const mod = comp.bin_file.options.module.?;
|
|
mod.astGenFile(file) catch |err| switch (err) {
|
|
error.AnalysisFail => return,
|
|
else => {
|
|
file.status = .retryable_failure;
|
|
comp.reportRetryableAstGenError(src, file, err) catch |oom| switch (oom) {
|
|
// Swallowing this error is OK because it's implied to be OOM when
|
|
// there is a missing `failed_files` error message.
|
|
error.OutOfMemory => {},
|
|
};
|
|
return;
|
|
},
|
|
};
|
|
|
|
// Pre-emptively look for `@import` paths and queue them up.
|
|
// If we experience an error preemptively fetching the
|
|
// file, just ignore it and let it happen again later during Sema.
|
|
assert(file.zir_loaded);
|
|
const imports_index = file.zir.extra[@enumToInt(Zir.ExtraIndex.imports)];
|
|
if (imports_index != 0) {
|
|
const extra = file.zir.extraData(Zir.Inst.Imports, imports_index);
|
|
var import_i: u32 = 0;
|
|
var extra_index = extra.end;
|
|
|
|
while (import_i < extra.data.imports_len) : (import_i += 1) {
|
|
const item = file.zir.extraData(Zir.Inst.Imports.Item, extra_index);
|
|
extra_index = item.end;
|
|
|
|
const import_path = file.zir.nullTerminatedString(item.data.name);
|
|
// `@import("builtin")` is handled specially.
|
|
if (mem.eql(u8, import_path, "builtin")) continue;
|
|
|
|
const import_result = blk: {
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
|
|
break :blk mod.importFile(file, import_path) catch continue;
|
|
};
|
|
if (import_result.is_new) {
|
|
log.debug("AstGen of {s} has import '{s}'; queuing AstGen of {s}", .{
|
|
file.sub_file_path, import_path, import_result.file.sub_file_path,
|
|
});
|
|
const sub_src: AstGenSrc = .{ .import = .{
|
|
.importing_file = file,
|
|
.import_tok = item.data.token,
|
|
} };
|
|
wg.start();
|
|
comp.thread_pool.spawn(workerAstGenFile, .{
|
|
comp, import_result.file, prog_node, wg, sub_src,
|
|
}) catch {
|
|
wg.finish();
|
|
continue;
|
|
};
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fn workerUpdateBuiltinZigFile(
|
|
comp: *Compilation,
|
|
mod: *Module,
|
|
wg: *WaitGroup,
|
|
) void {
|
|
defer wg.finish();
|
|
|
|
mod.populateBuiltinFile() catch |err| {
|
|
const dir_path: []const u8 = mod.zig_cache_artifact_directory.path orelse ".";
|
|
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
|
|
comp.setMiscFailure(.write_builtin_zig, "unable to write builtin.zig to {s}: {s}", .{
|
|
dir_path, @errorName(err),
|
|
}) catch |oom| switch (oom) {
|
|
error.OutOfMemory => log.err("unable to write builtin.zig to {s}: {s}", .{
|
|
dir_path, @errorName(err),
|
|
}),
|
|
};
|
|
};
|
|
}
|
|
|
|
fn workerCheckEmbedFile(
|
|
comp: *Compilation,
|
|
embed_file: *Module.EmbedFile,
|
|
prog_node: *std.Progress.Node,
|
|
wg: *WaitGroup,
|
|
) void {
|
|
defer wg.finish();
|
|
|
|
var child_prog_node = prog_node.start(embed_file.sub_file_path, 0);
|
|
child_prog_node.activate();
|
|
defer child_prog_node.end();
|
|
|
|
const mod = comp.bin_file.options.module.?;
|
|
mod.detectEmbedFileUpdate(embed_file) catch |err| {
|
|
comp.reportRetryableEmbedFileError(embed_file, err) catch |oom| switch (oom) {
|
|
// Swallowing this error is OK because it's implied to be OOM when
|
|
// there is a missing `failed_embed_files` error message.
|
|
error.OutOfMemory => {},
|
|
};
|
|
return;
|
|
};
|
|
}
|
|
|
|
pub fn obtainCObjectCacheManifest(comp: *const Compilation) Cache.Manifest {
|
|
var man = comp.cache_parent.obtain();
|
|
|
|
// Only things that need to be added on top of the base hash, and only things
|
|
// that apply both to @cImport and compiling C objects. No linking stuff here!
|
|
// Also nothing that applies only to compiling .zig code.
|
|
man.hash.add(comp.sanitize_c);
|
|
man.hash.addListOfBytes(comp.clang_argv);
|
|
man.hash.add(comp.bin_file.options.link_libcpp);
|
|
man.hash.addListOfBytes(comp.libc_include_dir_list);
|
|
|
|
return man;
|
|
}
|
|
|
|
test "cImport" {
|
|
_ = cImport;
|
|
}
|
|
|
|
const CImportResult = struct {
|
|
out_zig_path: []u8,
|
|
errors: []translate_c.ClangErrMsg,
|
|
};
|
|
|
|
/// Caller owns returned memory.
|
|
/// This API is currently coupled pretty tightly to stage1's needs; it will need to be reworked
|
|
/// a bit when we want to start using it from self-hosted.
|
|
pub fn cImport(comp: *Compilation, c_src: []const u8) !CImportResult {
|
|
if (!build_options.have_llvm)
|
|
return error.ZigCompilerNotBuiltWithLLVMExtensions;
|
|
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
const cimport_zig_basename = "cimport.zig";
|
|
|
|
var man = comp.obtainCObjectCacheManifest();
|
|
defer man.deinit();
|
|
|
|
const use_stage1 = build_options.is_stage1 and comp.bin_file.options.use_stage1;
|
|
|
|
man.hash.add(@as(u16, 0xb945)); // Random number to distinguish translate-c from compiling C objects
|
|
man.hash.add(use_stage1);
|
|
man.hash.addBytes(c_src);
|
|
|
|
// If the previous invocation resulted in clang errors, we will see a hit
|
|
// here with 0 files in the manifest, in which case it is actually a miss.
|
|
// We need to "unhit" in this case, to keep the digests matching.
|
|
const prev_hash_state = man.hash.peekBin();
|
|
const actual_hit = hit: {
|
|
_ = try man.hit();
|
|
if (man.files.items.len == 0) {
|
|
man.unhit(prev_hash_state, 0);
|
|
break :hit false;
|
|
}
|
|
break :hit true;
|
|
};
|
|
const digest = if (!actual_hit) digest: {
|
|
var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
|
|
defer arena_allocator.deinit();
|
|
const arena = arena_allocator.allocator();
|
|
|
|
const tmp_digest = man.hash.peek();
|
|
const tmp_dir_sub_path = try std.fs.path.join(arena, &[_][]const u8{ "o", &tmp_digest });
|
|
var zig_cache_tmp_dir = try comp.local_cache_directory.handle.makeOpenPath(tmp_dir_sub_path, .{});
|
|
defer zig_cache_tmp_dir.close();
|
|
const cimport_basename = "cimport.h";
|
|
const out_h_path = try comp.local_cache_directory.join(arena, &[_][]const u8{
|
|
tmp_dir_sub_path, cimport_basename,
|
|
});
|
|
const out_dep_path = try std.fmt.allocPrint(arena, "{s}.d", .{out_h_path});
|
|
|
|
try zig_cache_tmp_dir.writeFile(cimport_basename, c_src);
|
|
if (comp.verbose_cimport) {
|
|
log.info("C import source: {s}", .{out_h_path});
|
|
}
|
|
|
|
var argv = std.ArrayList([]const u8).init(comp.gpa);
|
|
defer argv.deinit();
|
|
|
|
try argv.append(""); // argv[0] is program name, actual args start at [1]
|
|
try comp.addTranslateCCArgs(arena, &argv, .c, out_dep_path);
|
|
|
|
try argv.append(out_h_path);
|
|
|
|
if (comp.verbose_cc) {
|
|
dump_argv(argv.items);
|
|
}
|
|
|
|
// Convert to null terminated args.
|
|
const new_argv_with_sentinel = try arena.alloc(?[*:0]const u8, argv.items.len + 1);
|
|
new_argv_with_sentinel[argv.items.len] = null;
|
|
const new_argv = new_argv_with_sentinel[0..argv.items.len :null];
|
|
for (argv.items) |arg, i| {
|
|
new_argv[i] = try arena.dupeZ(u8, arg);
|
|
}
|
|
|
|
const c_headers_dir_path = try comp.zig_lib_directory.join(arena, &[_][]const u8{"include"});
|
|
const c_headers_dir_path_z = try arena.dupeZ(u8, c_headers_dir_path);
|
|
var clang_errors: []translate_c.ClangErrMsg = &[0]translate_c.ClangErrMsg{};
|
|
var tree = translate_c.translate(
|
|
comp.gpa,
|
|
new_argv.ptr,
|
|
new_argv.ptr + new_argv.len,
|
|
&clang_errors,
|
|
c_headers_dir_path_z,
|
|
use_stage1,
|
|
) catch |err| switch (err) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.ASTUnitFailure => {
|
|
log.warn("clang API returned errors but due to a clang bug, it is not exposing the errors for zig to see. For more details: https://github.com/ziglang/zig/issues/4455", .{});
|
|
return error.ASTUnitFailure;
|
|
},
|
|
error.SemanticAnalyzeFail => {
|
|
return CImportResult{
|
|
.out_zig_path = "",
|
|
.errors = clang_errors,
|
|
};
|
|
},
|
|
};
|
|
defer tree.deinit(comp.gpa);
|
|
|
|
if (comp.verbose_cimport) {
|
|
log.info("C import .d file: {s}", .{out_dep_path});
|
|
}
|
|
|
|
const dep_basename = std.fs.path.basename(out_dep_path);
|
|
try man.addDepFilePost(zig_cache_tmp_dir, dep_basename);
|
|
if (comp.whole_cache_manifest) |whole_cache_manifest| {
|
|
try whole_cache_manifest.addDepFilePost(zig_cache_tmp_dir, dep_basename);
|
|
}
|
|
|
|
const digest = man.final();
|
|
const o_sub_path = try std.fs.path.join(arena, &[_][]const u8{ "o", &digest });
|
|
var o_dir = try comp.local_cache_directory.handle.makeOpenPath(o_sub_path, .{});
|
|
defer o_dir.close();
|
|
|
|
var out_zig_file = try o_dir.createFile(cimport_zig_basename, .{});
|
|
defer out_zig_file.close();
|
|
|
|
const formatted = try tree.render(comp.gpa);
|
|
defer comp.gpa.free(formatted);
|
|
|
|
try out_zig_file.writeAll(formatted);
|
|
|
|
break :digest digest;
|
|
} else man.final();
|
|
|
|
// Write the updated manifest. This is a no-op if the manifest is not dirty. Note that it is
|
|
// possible we had a hit and the manifest is dirty, for example if the file mtime changed but
|
|
// the contents were the same, we hit the cache but the manifest is dirty and we need to update
|
|
// it to prevent doing a full file content comparison the next time around.
|
|
man.writeManifest() catch |err| {
|
|
log.warn("failed to write cache manifest for C import: {s}", .{@errorName(err)});
|
|
};
|
|
|
|
const out_zig_path = try comp.local_cache_directory.join(comp.gpa, &[_][]const u8{
|
|
"o", &digest, cimport_zig_basename,
|
|
});
|
|
if (comp.verbose_cimport) {
|
|
log.info("C import output: {s}", .{out_zig_path});
|
|
}
|
|
return CImportResult{
|
|
.out_zig_path = out_zig_path,
|
|
.errors = &[0]translate_c.ClangErrMsg{},
|
|
};
|
|
}
|
|
|
|
fn workerUpdateCObject(
|
|
comp: *Compilation,
|
|
c_object: *CObject,
|
|
progress_node: *std.Progress.Node,
|
|
wg: *WaitGroup,
|
|
) void {
|
|
defer wg.finish();
|
|
|
|
comp.updateCObject(c_object, progress_node) catch |err| switch (err) {
|
|
error.AnalysisFail => return,
|
|
else => {
|
|
comp.reportRetryableCObjectError(c_object, err) catch |oom| switch (oom) {
|
|
// Swallowing this error is OK because it's implied to be OOM when
|
|
// there is a missing failed_c_objects error message.
|
|
error.OutOfMemory => {},
|
|
};
|
|
},
|
|
};
|
|
}
|
|
|
|
fn reportRetryableCObjectError(
|
|
comp: *Compilation,
|
|
c_object: *CObject,
|
|
err: anyerror,
|
|
) error{OutOfMemory}!void {
|
|
c_object.status = .failure_retryable;
|
|
|
|
const c_obj_err_msg = try comp.gpa.create(CObject.ErrorMsg);
|
|
errdefer comp.gpa.destroy(c_obj_err_msg);
|
|
const msg = try std.fmt.allocPrint(comp.gpa, "{s}", .{@errorName(err)});
|
|
errdefer comp.gpa.free(msg);
|
|
c_obj_err_msg.* = .{
|
|
.msg = msg,
|
|
.line = 0,
|
|
.column = 0,
|
|
};
|
|
{
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
try comp.failed_c_objects.putNoClobber(comp.gpa, c_object, c_obj_err_msg);
|
|
}
|
|
}
|
|
|
|
fn reportRetryableAstGenError(
|
|
comp: *Compilation,
|
|
src: AstGenSrc,
|
|
file: *Module.File,
|
|
err: anyerror,
|
|
) error{OutOfMemory}!void {
|
|
const mod = comp.bin_file.options.module.?;
|
|
const gpa = mod.gpa;
|
|
|
|
file.status = .retryable_failure;
|
|
|
|
const src_loc: Module.SrcLoc = switch (src) {
|
|
.root => .{
|
|
.file_scope = file,
|
|
.parent_decl_node = 0,
|
|
.lazy = .entire_file,
|
|
},
|
|
.import => |info| blk: {
|
|
const importing_file = info.importing_file;
|
|
|
|
break :blk .{
|
|
.file_scope = importing_file,
|
|
.parent_decl_node = 0,
|
|
.lazy = .{ .token_abs = info.import_tok },
|
|
};
|
|
},
|
|
};
|
|
|
|
const err_msg = if (file.pkg.root_src_directory.path) |dir_path|
|
|
try Module.ErrorMsg.create(
|
|
gpa,
|
|
src_loc,
|
|
"unable to load '{s}" ++ std.fs.path.sep_str ++ "{s}': {s}",
|
|
.{ dir_path, file.sub_file_path, @errorName(err) },
|
|
)
|
|
else
|
|
try Module.ErrorMsg.create(gpa, src_loc, "unable to load '{s}': {s}", .{
|
|
file.sub_file_path, @errorName(err),
|
|
});
|
|
errdefer err_msg.destroy(gpa);
|
|
|
|
{
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
try mod.failed_files.putNoClobber(gpa, file, err_msg);
|
|
}
|
|
}
|
|
|
|
fn reportRetryableEmbedFileError(
|
|
comp: *Compilation,
|
|
embed_file: *Module.EmbedFile,
|
|
err: anyerror,
|
|
) error{OutOfMemory}!void {
|
|
const mod = comp.bin_file.options.module.?;
|
|
const gpa = mod.gpa;
|
|
|
|
const src_loc: Module.SrcLoc = embed_file.owner_decl.srcLoc();
|
|
|
|
const err_msg = if (embed_file.pkg.root_src_directory.path) |dir_path|
|
|
try Module.ErrorMsg.create(
|
|
gpa,
|
|
src_loc,
|
|
"unable to load '{s}" ++ std.fs.path.sep_str ++ "{s}': {s}",
|
|
.{ dir_path, embed_file.sub_file_path, @errorName(err) },
|
|
)
|
|
else
|
|
try Module.ErrorMsg.create(gpa, src_loc, "unable to load '{s}': {s}", .{
|
|
embed_file.sub_file_path, @errorName(err),
|
|
});
|
|
errdefer err_msg.destroy(gpa);
|
|
|
|
{
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
try mod.failed_embed_files.putNoClobber(gpa, embed_file, err_msg);
|
|
}
|
|
}
|
|
|
|
fn updateCObject(comp: *Compilation, c_object: *CObject, c_obj_prog_node: *std.Progress.Node) !void {
|
|
if (!build_options.have_llvm) {
|
|
return comp.failCObj(c_object, "clang not available: compiler built without LLVM extensions", .{});
|
|
}
|
|
const self_exe_path = comp.self_exe_path orelse
|
|
return comp.failCObj(c_object, "clang compilation disabled", .{});
|
|
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
log.debug("updating C object: {s}", .{c_object.src.src_path});
|
|
|
|
if (c_object.clearStatus(comp.gpa)) {
|
|
// There was previous failure.
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
// If the failure was OOM, there will not be an entry here, so we do
|
|
// not assert discard.
|
|
_ = comp.failed_c_objects.swapRemove(c_object);
|
|
}
|
|
|
|
var man = comp.obtainCObjectCacheManifest();
|
|
defer man.deinit();
|
|
|
|
man.hash.add(comp.clang_preprocessor_mode);
|
|
man.hash.addOptionalEmitLoc(comp.emit_asm);
|
|
man.hash.addOptionalEmitLoc(comp.emit_llvm_ir);
|
|
man.hash.addOptionalEmitLoc(comp.emit_llvm_bc);
|
|
|
|
try man.hashCSource(c_object.src);
|
|
|
|
var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
|
|
defer arena_allocator.deinit();
|
|
const arena = arena_allocator.allocator();
|
|
|
|
const c_source_basename = std.fs.path.basename(c_object.src.src_path);
|
|
|
|
c_obj_prog_node.activate();
|
|
var child_progress_node = c_obj_prog_node.start(c_source_basename, 0);
|
|
child_progress_node.activate();
|
|
defer child_progress_node.end();
|
|
|
|
// Special case when doing build-obj for just one C file. When there are more than one object
|
|
// file and building an object we need to link them together, but with just one it should go
|
|
// directly to the output file.
|
|
const direct_o = comp.c_source_files.len == 1 and comp.bin_file.options.module == null and
|
|
comp.bin_file.options.output_mode == .Obj and comp.bin_file.options.objects.len == 0;
|
|
const o_basename_noext = if (direct_o)
|
|
comp.bin_file.options.root_name
|
|
else
|
|
c_source_basename[0 .. c_source_basename.len - std.fs.path.extension(c_source_basename).len];
|
|
|
|
const o_ext = comp.bin_file.options.object_format.fileExt(comp.bin_file.options.target.cpu.arch);
|
|
const digest = if (!comp.disable_c_depfile and try man.hit()) man.final() else blk: {
|
|
var argv = std.ArrayList([]const u8).init(comp.gpa);
|
|
defer argv.deinit();
|
|
|
|
// In case we are doing passthrough mode, we need to detect -S and -emit-llvm.
|
|
const out_ext = e: {
|
|
if (!comp.clang_passthrough_mode)
|
|
break :e o_ext;
|
|
if (comp.emit_asm != null)
|
|
break :e ".s";
|
|
if (comp.emit_llvm_ir != null)
|
|
break :e ".ll";
|
|
if (comp.emit_llvm_bc != null)
|
|
break :e ".bc";
|
|
|
|
break :e o_ext;
|
|
};
|
|
const o_basename = try std.fmt.allocPrint(arena, "{s}{s}", .{ o_basename_noext, out_ext });
|
|
|
|
// We can't know the digest until we do the C compiler invocation,
|
|
// so we need a temporary filename.
|
|
const out_obj_path = try comp.tmpFilePath(arena, o_basename);
|
|
var zig_cache_tmp_dir = try comp.local_cache_directory.handle.makeOpenPath("tmp", .{});
|
|
defer zig_cache_tmp_dir.close();
|
|
|
|
try argv.appendSlice(&[_][]const u8{ self_exe_path, "clang" });
|
|
|
|
const ext = classifyFileExt(c_object.src.src_path);
|
|
const out_dep_path: ?[]const u8 = if (comp.disable_c_depfile or !ext.clangSupportsDepFile())
|
|
null
|
|
else
|
|
try std.fmt.allocPrint(arena, "{s}.d", .{out_obj_path});
|
|
try comp.addCCArgs(arena, &argv, ext, out_dep_path);
|
|
|
|
try argv.ensureUnusedCapacity(6 + c_object.src.extra_flags.len);
|
|
switch (comp.clang_preprocessor_mode) {
|
|
.no => argv.appendSliceAssumeCapacity(&[_][]const u8{ "-c", "-o", out_obj_path }),
|
|
.yes => argv.appendSliceAssumeCapacity(&[_][]const u8{ "-E", "-o", out_obj_path }),
|
|
.stdout => argv.appendAssumeCapacity("-E"),
|
|
}
|
|
if (comp.clang_passthrough_mode) {
|
|
if (comp.emit_asm != null) {
|
|
argv.appendAssumeCapacity("-S");
|
|
} else if (comp.emit_llvm_ir != null) {
|
|
argv.appendSliceAssumeCapacity(&[_][]const u8{ "-emit-llvm", "-S" });
|
|
} else if (comp.emit_llvm_bc != null) {
|
|
argv.appendAssumeCapacity("-emit-llvm");
|
|
}
|
|
}
|
|
argv.appendAssumeCapacity(c_object.src.src_path);
|
|
argv.appendSliceAssumeCapacity(c_object.src.extra_flags);
|
|
|
|
if (comp.verbose_cc) {
|
|
dump_argv(argv.items);
|
|
}
|
|
|
|
if (std.process.can_spawn) {
|
|
const child = try std.ChildProcess.init(argv.items, arena);
|
|
defer child.deinit();
|
|
|
|
if (comp.clang_passthrough_mode) {
|
|
child.stdin_behavior = .Inherit;
|
|
child.stdout_behavior = .Inherit;
|
|
child.stderr_behavior = .Inherit;
|
|
|
|
const term = child.spawnAndWait() catch |err| {
|
|
return comp.failCObj(c_object, "unable to spawn {s}: {s}", .{ argv.items[0], @errorName(err) });
|
|
};
|
|
switch (term) {
|
|
.Exited => |code| {
|
|
if (code != 0) {
|
|
std.process.exit(code);
|
|
}
|
|
if (comp.clang_preprocessor_mode == .stdout)
|
|
std.process.exit(0);
|
|
},
|
|
else => std.process.abort(),
|
|
}
|
|
} else {
|
|
child.stdin_behavior = .Ignore;
|
|
child.stdout_behavior = .Ignore;
|
|
child.stderr_behavior = .Pipe;
|
|
|
|
try child.spawn();
|
|
|
|
const stderr_reader = child.stderr.?.reader();
|
|
|
|
const stderr = try stderr_reader.readAllAlloc(arena, 10 * 1024 * 1024);
|
|
|
|
const term = child.wait() catch |err| {
|
|
return comp.failCObj(c_object, "unable to spawn {s}: {s}", .{ argv.items[0], @errorName(err) });
|
|
};
|
|
|
|
switch (term) {
|
|
.Exited => |code| {
|
|
if (code != 0) {
|
|
// TODO parse clang stderr and turn it into an error message
|
|
// and then call failCObjWithOwnedErrorMsg
|
|
log.err("clang failed with stderr: {s}", .{stderr});
|
|
return comp.failCObj(c_object, "clang exited with code {d}", .{code});
|
|
}
|
|
},
|
|
else => {
|
|
log.err("clang terminated with stderr: {s}", .{stderr});
|
|
return comp.failCObj(c_object, "clang terminated unexpectedly", .{});
|
|
},
|
|
}
|
|
}
|
|
} else {
|
|
const exit_code = try clangMain(arena, argv.items);
|
|
if (exit_code != 0) {
|
|
if (comp.clang_passthrough_mode) {
|
|
std.process.exit(exit_code);
|
|
} else {
|
|
return comp.failCObj(c_object, "clang exited with code {d}", .{exit_code});
|
|
}
|
|
}
|
|
if (comp.clang_passthrough_mode and
|
|
comp.clang_preprocessor_mode == .stdout)
|
|
{
|
|
std.process.exit(0);
|
|
}
|
|
}
|
|
|
|
if (out_dep_path) |dep_file_path| {
|
|
const dep_basename = std.fs.path.basename(dep_file_path);
|
|
// Add the files depended on to the cache system.
|
|
try man.addDepFilePost(zig_cache_tmp_dir, dep_basename);
|
|
// Just to save disk space, we delete the file because it is never needed again.
|
|
zig_cache_tmp_dir.deleteFile(dep_basename) catch |err| {
|
|
log.warn("failed to delete '{s}': {s}", .{ dep_file_path, @errorName(err) });
|
|
};
|
|
}
|
|
|
|
// We don't actually care whether it's a cache hit or miss; we just need the digest and the lock.
|
|
if (comp.disable_c_depfile) _ = try man.hit();
|
|
|
|
// Rename into place.
|
|
const digest = man.final();
|
|
const o_sub_path = try std.fs.path.join(arena, &[_][]const u8{ "o", &digest });
|
|
var o_dir = try comp.local_cache_directory.handle.makeOpenPath(o_sub_path, .{});
|
|
defer o_dir.close();
|
|
const tmp_basename = std.fs.path.basename(out_obj_path);
|
|
try std.fs.rename(zig_cache_tmp_dir, tmp_basename, o_dir, o_basename);
|
|
break :blk digest;
|
|
};
|
|
|
|
// Write the updated manifest. This is a no-op if the manifest is not dirty. Note that it is
|
|
// possible we had a hit and the manifest is dirty, for example if the file mtime changed but
|
|
// the contents were the same, we hit the cache but the manifest is dirty and we need to update
|
|
// it to prevent doing a full file content comparison the next time around.
|
|
man.writeManifest() catch |err| {
|
|
log.warn("failed to write cache manifest when compiling '{s}': {s}", .{ c_object.src.src_path, @errorName(err) });
|
|
};
|
|
|
|
const o_basename = try std.fmt.allocPrint(arena, "{s}{s}", .{ o_basename_noext, o_ext });
|
|
|
|
c_object.status = .{
|
|
.success = .{
|
|
.object_path = try comp.local_cache_directory.join(comp.gpa, &[_][]const u8{
|
|
"o", &digest, o_basename,
|
|
}),
|
|
.lock = man.toOwnedLock(),
|
|
},
|
|
};
|
|
}
|
|
|
|
pub fn tmpFilePath(comp: *Compilation, ally: Allocator, suffix: []const u8) error{OutOfMemory}![]const u8 {
|
|
const s = std.fs.path.sep_str;
|
|
const rand_int = std.crypto.random.int(u64);
|
|
if (comp.local_cache_directory.path) |p| {
|
|
return std.fmt.allocPrint(ally, "{s}" ++ s ++ "tmp" ++ s ++ "{x}-{s}", .{ p, rand_int, suffix });
|
|
} else {
|
|
return std.fmt.allocPrint(ally, "tmp" ++ s ++ "{x}-{s}", .{ rand_int, suffix });
|
|
}
|
|
}
|
|
|
|
pub fn addTranslateCCArgs(
|
|
comp: *Compilation,
|
|
arena: Allocator,
|
|
argv: *std.ArrayList([]const u8),
|
|
ext: FileExt,
|
|
out_dep_path: ?[]const u8,
|
|
) !void {
|
|
try argv.appendSlice(&[_][]const u8{ "-x", "c" });
|
|
try comp.addCCArgs(arena, argv, ext, out_dep_path);
|
|
// This gives us access to preprocessing entities, presumably at the cost of performance.
|
|
try argv.appendSlice(&[_][]const u8{ "-Xclang", "-detailed-preprocessing-record" });
|
|
}
|
|
|
|
/// Add common C compiler args between translate-c and C object compilation.
|
|
pub fn addCCArgs(
|
|
comp: *const Compilation,
|
|
arena: Allocator,
|
|
argv: *std.ArrayList([]const u8),
|
|
ext: FileExt,
|
|
out_dep_path: ?[]const u8,
|
|
) !void {
|
|
const target = comp.getTarget();
|
|
|
|
if (ext == .cpp) {
|
|
try argv.append("-nostdinc++");
|
|
}
|
|
|
|
// We don't ever put `-fcolor-diagnostics` or `-fno-color-diagnostics` because in passthrough mode
|
|
// we want Clang to infer it, and in normal mode we always want it off, which will be true since
|
|
// clang will detect stderr as a pipe rather than a terminal.
|
|
if (!comp.clang_passthrough_mode) {
|
|
// Make stderr more easily parseable.
|
|
try argv.append("-fno-caret-diagnostics");
|
|
}
|
|
|
|
if (comp.bin_file.options.function_sections) {
|
|
try argv.append("-ffunction-sections");
|
|
}
|
|
|
|
if (comp.bin_file.options.link_libcpp) {
|
|
const libcxx_include_path = try std.fs.path.join(arena, &[_][]const u8{
|
|
comp.zig_lib_directory.path.?, "libcxx", "include",
|
|
});
|
|
const libcxxabi_include_path = try std.fs.path.join(arena, &[_][]const u8{
|
|
comp.zig_lib_directory.path.?, "libcxxabi", "include",
|
|
});
|
|
|
|
try argv.append("-isystem");
|
|
try argv.append(libcxx_include_path);
|
|
|
|
try argv.append("-isystem");
|
|
try argv.append(libcxxabi_include_path);
|
|
|
|
if (target.abi.isMusl()) {
|
|
try argv.append("-D_LIBCPP_HAS_MUSL_LIBC");
|
|
}
|
|
try argv.append("-D_LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS");
|
|
try argv.append("-D_LIBCXXABI_DISABLE_VISIBILITY_ANNOTATIONS");
|
|
try argv.append("-D_LIBCPP_HAS_NO_VENDOR_AVAILABILITY_ANNOTATIONS");
|
|
}
|
|
|
|
if (comp.bin_file.options.link_libunwind) {
|
|
const libunwind_include_path = try std.fs.path.join(arena, &[_][]const u8{
|
|
comp.zig_lib_directory.path.?, "libunwind", "include",
|
|
});
|
|
|
|
try argv.append("-isystem");
|
|
try argv.append(libunwind_include_path);
|
|
}
|
|
|
|
if (comp.bin_file.options.link_libc and target.isGnuLibC()) {
|
|
const target_version = target.os.version_range.linux.glibc;
|
|
const glibc_minor_define = try std.fmt.allocPrint(arena, "-D__GLIBC_MINOR__={d}", .{
|
|
target_version.minor,
|
|
});
|
|
try argv.append(glibc_minor_define);
|
|
}
|
|
|
|
const llvm_triple = try @import("codegen/llvm.zig").targetTriple(arena, target);
|
|
try argv.appendSlice(&[_][]const u8{ "-target", llvm_triple });
|
|
|
|
switch (ext) {
|
|
.c, .cpp, .m, .mm, .h, .cu => {
|
|
try argv.appendSlice(&[_][]const u8{
|
|
"-nostdinc",
|
|
"-fno-spell-checking",
|
|
});
|
|
if (comp.bin_file.options.lto) {
|
|
try argv.append("-flto");
|
|
}
|
|
|
|
if (ext == .mm) {
|
|
try argv.append("-ObjC++");
|
|
}
|
|
|
|
// According to Rich Felker libc headers are supposed to go before C language headers.
|
|
// However as noted by @dimenus, appending libc headers before c_headers breaks intrinsics
|
|
// and other compiler specific items.
|
|
const c_headers_dir = try std.fs.path.join(arena, &[_][]const u8{ comp.zig_lib_directory.path.?, "include" });
|
|
try argv.append("-isystem");
|
|
try argv.append(c_headers_dir);
|
|
|
|
for (comp.libc_include_dir_list) |include_dir| {
|
|
try argv.append("-isystem");
|
|
try argv.append(include_dir);
|
|
}
|
|
|
|
if (target.cpu.model.llvm_name) |llvm_name| {
|
|
try argv.appendSlice(&[_][]const u8{
|
|
"-Xclang", "-target-cpu", "-Xclang", llvm_name,
|
|
});
|
|
}
|
|
|
|
// It would be really nice if there was a more compact way to communicate this info to Clang.
|
|
const all_features_list = target.cpu.arch.allFeaturesList();
|
|
try argv.ensureUnusedCapacity(all_features_list.len * 4);
|
|
for (all_features_list) |feature, index_usize| {
|
|
const index = @intCast(std.Target.Cpu.Feature.Set.Index, index_usize);
|
|
const is_enabled = target.cpu.features.isEnabled(index);
|
|
|
|
if (feature.llvm_name) |llvm_name| {
|
|
argv.appendSliceAssumeCapacity(&[_][]const u8{ "-Xclang", "-target-feature", "-Xclang" });
|
|
const plus_or_minus = "-+"[@boolToInt(is_enabled)];
|
|
const arg = try std.fmt.allocPrint(arena, "{c}{s}", .{ plus_or_minus, llvm_name });
|
|
argv.appendAssumeCapacity(arg);
|
|
}
|
|
}
|
|
const mcmodel = comp.bin_file.options.machine_code_model;
|
|
if (mcmodel != .default) {
|
|
try argv.append(try std.fmt.allocPrint(arena, "-mcmodel={s}", .{@tagName(mcmodel)}));
|
|
}
|
|
|
|
switch (target.os.tag) {
|
|
.windows => {
|
|
// windows.h has files such as pshpack1.h which do #pragma packing,
|
|
// triggering a clang warning. So for this target, we disable this warning.
|
|
if (target.abi.isGnu()) {
|
|
try argv.append("-Wno-pragma-pack");
|
|
}
|
|
},
|
|
.macos => {
|
|
// Pass the proper -m<os>-version-min argument for darwin.
|
|
const ver = target.os.version_range.semver.min;
|
|
try argv.append(try std.fmt.allocPrint(arena, "-mmacos-version-min={d}.{d}.{d}", .{
|
|
ver.major, ver.minor, ver.patch,
|
|
}));
|
|
},
|
|
.ios, .tvos, .watchos => switch (target.cpu.arch) {
|
|
// Pass the proper -m<os>-version-min argument for darwin.
|
|
.i386, .x86_64 => {
|
|
const ver = target.os.version_range.semver.min;
|
|
try argv.append(try std.fmt.allocPrint(
|
|
arena,
|
|
"-m{s}-simulator-version-min={d}.{d}.{d}",
|
|
.{ @tagName(target.os.tag), ver.major, ver.minor, ver.patch },
|
|
));
|
|
},
|
|
else => {
|
|
const ver = target.os.version_range.semver.min;
|
|
try argv.append(try std.fmt.allocPrint(arena, "-m{s}-version-min={d}.{d}.{d}", .{
|
|
@tagName(target.os.tag), ver.major, ver.minor, ver.patch,
|
|
}));
|
|
},
|
|
},
|
|
else => {},
|
|
}
|
|
|
|
if (!comp.bin_file.options.strip) {
|
|
try argv.append("-g");
|
|
switch (comp.bin_file.options.object_format) {
|
|
.coff => try argv.append("-gcodeview"),
|
|
else => {},
|
|
}
|
|
}
|
|
|
|
if (target.cpu.arch.isThumb()) {
|
|
try argv.append("-mthumb");
|
|
}
|
|
|
|
if (comp.sanitize_c and !comp.bin_file.options.tsan) {
|
|
try argv.append("-fsanitize=undefined");
|
|
try argv.append("-fsanitize-trap=undefined");
|
|
} else if (comp.sanitize_c and comp.bin_file.options.tsan) {
|
|
try argv.append("-fsanitize=undefined,thread");
|
|
try argv.append("-fsanitize-trap=undefined");
|
|
} else if (!comp.sanitize_c and comp.bin_file.options.tsan) {
|
|
try argv.append("-fsanitize=thread");
|
|
}
|
|
|
|
if (comp.bin_file.options.red_zone) {
|
|
try argv.append("-mred-zone");
|
|
} else if (target_util.hasRedZone(target)) {
|
|
try argv.append("-mno-red-zone");
|
|
}
|
|
|
|
if (comp.bin_file.options.omit_frame_pointer) {
|
|
try argv.append("-fomit-frame-pointer");
|
|
} else {
|
|
try argv.append("-fno-omit-frame-pointer");
|
|
}
|
|
|
|
switch (comp.bin_file.options.optimize_mode) {
|
|
.Debug => {
|
|
// windows c runtime requires -D_DEBUG if using debug libraries
|
|
try argv.append("-D_DEBUG");
|
|
try argv.append("-Og");
|
|
|
|
if (comp.bin_file.options.link_libc and target.os.tag != .wasi) {
|
|
try argv.append("-fstack-protector-strong");
|
|
try argv.append("--param");
|
|
try argv.append("ssp-buffer-size=4");
|
|
} else {
|
|
try argv.append("-fno-stack-protector");
|
|
}
|
|
},
|
|
.ReleaseSafe => {
|
|
// See the comment in the BuildModeFastRelease case for why we pass -O2 rather
|
|
// than -O3 here.
|
|
try argv.append("-O2");
|
|
if (comp.bin_file.options.link_libc and target.os.tag != .wasi) {
|
|
try argv.append("-D_FORTIFY_SOURCE=2");
|
|
try argv.append("-fstack-protector-strong");
|
|
try argv.append("--param");
|
|
try argv.append("ssp-buffer-size=4");
|
|
} else {
|
|
try argv.append("-fno-stack-protector");
|
|
}
|
|
},
|
|
.ReleaseFast => {
|
|
try argv.append("-DNDEBUG");
|
|
// Here we pass -O2 rather than -O3 because, although we do the equivalent of
|
|
// -O3 in Zig code, the justification for the difference here is that Zig
|
|
// has better detection and prevention of undefined behavior, so -O3 is safer for
|
|
// Zig code than it is for C code. Also, C programmers are used to their code
|
|
// running in -O2 and thus the -O3 path has been tested less.
|
|
try argv.append("-O2");
|
|
try argv.append("-fno-stack-protector");
|
|
},
|
|
.ReleaseSmall => {
|
|
try argv.append("-DNDEBUG");
|
|
try argv.append("-Os");
|
|
try argv.append("-fno-stack-protector");
|
|
},
|
|
}
|
|
|
|
if (target_util.supports_fpic(target) and comp.bin_file.options.pic) {
|
|
try argv.append("-fPIC");
|
|
}
|
|
|
|
if (comp.unwind_tables) {
|
|
try argv.append("-funwind-tables");
|
|
} else {
|
|
try argv.append("-fno-unwind-tables");
|
|
}
|
|
},
|
|
.shared_library, .ll, .bc, .unknown, .static_library, .object, .zig => {},
|
|
.assembly => {
|
|
// The Clang assembler does not accept the list of CPU features like the
|
|
// compiler frontend does. Therefore we must hard-code the -m flags for
|
|
// all CPU features here.
|
|
switch (target.cpu.arch) {
|
|
.riscv32, .riscv64 => {
|
|
const RvArchFeat = struct { char: u8, feat: std.Target.riscv.Feature };
|
|
const letters = [_]RvArchFeat{
|
|
.{ .char = 'm', .feat = .m },
|
|
.{ .char = 'a', .feat = .a },
|
|
.{ .char = 'f', .feat = .f },
|
|
.{ .char = 'd', .feat = .d },
|
|
.{ .char = 'c', .feat = .c },
|
|
};
|
|
const prefix: []const u8 = if (target.cpu.arch == .riscv64) "rv64" else "rv32";
|
|
const prefix_len = 4;
|
|
assert(prefix.len == prefix_len);
|
|
var march_buf: [prefix_len + letters.len + 1]u8 = undefined;
|
|
var march_index: usize = prefix_len;
|
|
mem.copy(u8, &march_buf, prefix);
|
|
|
|
if (std.Target.riscv.featureSetHas(target.cpu.features, .e)) {
|
|
march_buf[march_index] = 'e';
|
|
} else {
|
|
march_buf[march_index] = 'i';
|
|
}
|
|
march_index += 1;
|
|
|
|
for (letters) |letter| {
|
|
if (std.Target.riscv.featureSetHas(target.cpu.features, letter.feat)) {
|
|
march_buf[march_index] = letter.char;
|
|
march_index += 1;
|
|
}
|
|
}
|
|
|
|
const march_arg = try std.fmt.allocPrint(arena, "-march={s}", .{
|
|
march_buf[0..march_index],
|
|
});
|
|
try argv.append(march_arg);
|
|
|
|
if (std.Target.riscv.featureSetHas(target.cpu.features, .relax)) {
|
|
try argv.append("-mrelax");
|
|
} else {
|
|
try argv.append("-mno-relax");
|
|
}
|
|
if (std.Target.riscv.featureSetHas(target.cpu.features, .save_restore)) {
|
|
try argv.append("-msave-restore");
|
|
} else {
|
|
try argv.append("-mno-save-restore");
|
|
}
|
|
},
|
|
else => {
|
|
// TODO
|
|
},
|
|
}
|
|
if (target_util.clangAssemblerSupportsMcpuArg(target)) {
|
|
if (target.cpu.model.llvm_name) |llvm_name| {
|
|
try argv.append(try std.fmt.allocPrint(arena, "-mcpu={s}", .{llvm_name}));
|
|
}
|
|
}
|
|
},
|
|
}
|
|
|
|
if (target_util.llvmMachineAbi(target)) |mabi| {
|
|
try argv.append(try std.fmt.allocPrint(arena, "-mabi={s}", .{mabi}));
|
|
}
|
|
|
|
if (out_dep_path) |p| {
|
|
try argv.appendSlice(&[_][]const u8{ "-MD", "-MV", "-MF", p });
|
|
}
|
|
|
|
// We never want clang to invoke the system assembler for anything. So we would want
|
|
// this option always enabled. However, it only matters for some targets. To avoid
|
|
// "unused parameter" warnings, and to keep CLI spam to a minimum, we only put this
|
|
// flag on the command line if it is necessary.
|
|
if (target_util.clangMightShellOutForAssembly(target)) {
|
|
try argv.append("-integrated-as");
|
|
}
|
|
|
|
if (target.os.tag == .freestanding) {
|
|
try argv.append("-ffreestanding");
|
|
}
|
|
|
|
try argv.appendSlice(comp.clang_argv);
|
|
}
|
|
|
|
fn failCObj(comp: *Compilation, c_object: *CObject, comptime format: []const u8, args: anytype) SemaError {
|
|
@setCold(true);
|
|
const err_msg = blk: {
|
|
const msg = try std.fmt.allocPrint(comp.gpa, format, args);
|
|
errdefer comp.gpa.free(msg);
|
|
const err_msg = try comp.gpa.create(CObject.ErrorMsg);
|
|
errdefer comp.gpa.destroy(err_msg);
|
|
err_msg.* = .{
|
|
.msg = msg,
|
|
.line = 0,
|
|
.column = 0,
|
|
};
|
|
break :blk err_msg;
|
|
};
|
|
return comp.failCObjWithOwnedErrorMsg(c_object, err_msg);
|
|
}
|
|
|
|
fn failCObjWithOwnedErrorMsg(
|
|
comp: *Compilation,
|
|
c_object: *CObject,
|
|
err_msg: *CObject.ErrorMsg,
|
|
) SemaError {
|
|
@setCold(true);
|
|
{
|
|
comp.mutex.lock();
|
|
defer comp.mutex.unlock();
|
|
{
|
|
errdefer err_msg.destroy(comp.gpa);
|
|
try comp.failed_c_objects.ensureUnusedCapacity(comp.gpa, 1);
|
|
}
|
|
comp.failed_c_objects.putAssumeCapacityNoClobber(c_object, err_msg);
|
|
}
|
|
c_object.status = .failure;
|
|
return error.AnalysisFail;
|
|
}
|
|
|
|
pub const FileExt = enum {
|
|
c,
|
|
cpp,
|
|
cu,
|
|
h,
|
|
m,
|
|
mm,
|
|
ll,
|
|
bc,
|
|
assembly,
|
|
shared_library,
|
|
object,
|
|
static_library,
|
|
zig,
|
|
unknown,
|
|
|
|
pub fn clangSupportsDepFile(ext: FileExt) bool {
|
|
return switch (ext) {
|
|
.c, .cpp, .h, .m, .mm, .cu => true,
|
|
|
|
.ll,
|
|
.bc,
|
|
.assembly,
|
|
.shared_library,
|
|
.object,
|
|
.static_library,
|
|
.zig,
|
|
.unknown,
|
|
=> false,
|
|
};
|
|
}
|
|
};
|
|
|
|
pub fn hasObjectExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".o") or mem.endsWith(u8, filename, ".obj");
|
|
}
|
|
|
|
pub fn hasStaticLibraryExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".a") or mem.endsWith(u8, filename, ".lib");
|
|
}
|
|
|
|
pub fn hasCExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".c");
|
|
}
|
|
|
|
pub fn hasCppExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".C") or
|
|
mem.endsWith(u8, filename, ".cc") or
|
|
mem.endsWith(u8, filename, ".cpp") or
|
|
mem.endsWith(u8, filename, ".cxx") or
|
|
mem.endsWith(u8, filename, ".stub");
|
|
}
|
|
|
|
pub fn hasObjCExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".m");
|
|
}
|
|
|
|
pub fn hasObjCppExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".mm");
|
|
}
|
|
|
|
pub fn hasAsmExt(filename: []const u8) bool {
|
|
return mem.endsWith(u8, filename, ".s") or mem.endsWith(u8, filename, ".S");
|
|
}
|
|
|
|
pub fn hasSharedLibraryExt(filename: []const u8) bool {
|
|
if (mem.endsWith(u8, filename, ".so") or
|
|
mem.endsWith(u8, filename, ".dll") or
|
|
mem.endsWith(u8, filename, ".dylib") or
|
|
mem.endsWith(u8, filename, ".tbd"))
|
|
{
|
|
return true;
|
|
}
|
|
// Look for .so.X, .so.X.Y, .so.X.Y.Z
|
|
var it = mem.split(u8, filename, ".");
|
|
_ = it.next().?;
|
|
var so_txt = it.next() orelse return false;
|
|
while (!mem.eql(u8, so_txt, "so")) {
|
|
so_txt = it.next() orelse return false;
|
|
}
|
|
const n1 = it.next() orelse return false;
|
|
const n2 = it.next();
|
|
const n3 = it.next();
|
|
|
|
_ = std.fmt.parseInt(u32, n1, 10) catch return false;
|
|
if (n2) |x| _ = std.fmt.parseInt(u32, x, 10) catch return false;
|
|
if (n3) |x| _ = std.fmt.parseInt(u32, x, 10) catch return false;
|
|
if (it.next() != null) return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
pub fn classifyFileExt(filename: []const u8) FileExt {
|
|
if (hasCExt(filename)) {
|
|
return .c;
|
|
} else if (hasCppExt(filename)) {
|
|
return .cpp;
|
|
} else if (hasObjCExt(filename)) {
|
|
return .m;
|
|
} else if (hasObjCppExt(filename)) {
|
|
return .mm;
|
|
} else if (mem.endsWith(u8, filename, ".ll")) {
|
|
return .ll;
|
|
} else if (mem.endsWith(u8, filename, ".bc")) {
|
|
return .bc;
|
|
} else if (hasAsmExt(filename)) {
|
|
return .assembly;
|
|
} else if (mem.endsWith(u8, filename, ".h")) {
|
|
return .h;
|
|
} else if (mem.endsWith(u8, filename, ".zig")) {
|
|
return .zig;
|
|
} else if (hasSharedLibraryExt(filename)) {
|
|
return .shared_library;
|
|
} else if (hasStaticLibraryExt(filename)) {
|
|
return .static_library;
|
|
} else if (hasObjectExt(filename)) {
|
|
return .object;
|
|
} else if (mem.endsWith(u8, filename, ".cu")) {
|
|
return .cu;
|
|
} else {
|
|
return .unknown;
|
|
}
|
|
}
|
|
|
|
test "classifyFileExt" {
|
|
try std.testing.expectEqual(FileExt.cpp, classifyFileExt("foo.cc"));
|
|
try std.testing.expectEqual(FileExt.m, classifyFileExt("foo.m"));
|
|
try std.testing.expectEqual(FileExt.mm, classifyFileExt("foo.mm"));
|
|
try std.testing.expectEqual(FileExt.unknown, classifyFileExt("foo.nim"));
|
|
try std.testing.expectEqual(FileExt.shared_library, classifyFileExt("foo.so"));
|
|
try std.testing.expectEqual(FileExt.shared_library, classifyFileExt("foo.so.1"));
|
|
try std.testing.expectEqual(FileExt.shared_library, classifyFileExt("foo.so.1.2"));
|
|
try std.testing.expectEqual(FileExt.shared_library, classifyFileExt("foo.so.1.2.3"));
|
|
try std.testing.expectEqual(FileExt.unknown, classifyFileExt("foo.so.1.2.3~"));
|
|
try std.testing.expectEqual(FileExt.zig, classifyFileExt("foo.zig"));
|
|
}
|
|
|
|
const LibCDirs = struct {
|
|
libc_include_dir_list: []const []const u8,
|
|
libc_installation: ?*const LibCInstallation,
|
|
};
|
|
|
|
fn getZigShippedLibCIncludeDirsDarwin(arena: Allocator, zig_lib_dir: []const u8, target: Target) !LibCDirs {
|
|
const arch_name = @tagName(target.cpu.arch);
|
|
const os_name = try std.fmt.allocPrint(arena, "{s}.{d}", .{
|
|
@tagName(target.os.tag),
|
|
target.os.version_range.semver.min.major,
|
|
});
|
|
const s = std.fs.path.sep_str;
|
|
const list = try arena.alloc([]const u8, 3);
|
|
|
|
list[0] = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "{s}-{s}-gnu",
|
|
.{ zig_lib_dir, arch_name, os_name },
|
|
);
|
|
list[1] = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "any-{s}-any",
|
|
.{ zig_lib_dir, os_name },
|
|
);
|
|
list[2] = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "any-macos-any",
|
|
.{zig_lib_dir},
|
|
);
|
|
|
|
return LibCDirs{
|
|
.libc_include_dir_list = list,
|
|
.libc_installation = null,
|
|
};
|
|
}
|
|
|
|
fn detectLibCIncludeDirs(
|
|
arena: Allocator,
|
|
zig_lib_dir: []const u8,
|
|
target: Target,
|
|
is_native_abi: bool,
|
|
link_libc: bool,
|
|
link_system_libs: bool,
|
|
libc_installation: ?*const LibCInstallation,
|
|
has_macos_sdk: bool,
|
|
) !LibCDirs {
|
|
if (!link_libc) {
|
|
return LibCDirs{
|
|
.libc_include_dir_list = &[0][]u8{},
|
|
.libc_installation = null,
|
|
};
|
|
}
|
|
|
|
if (libc_installation) |lci| {
|
|
return detectLibCFromLibCInstallation(arena, target, lci);
|
|
}
|
|
|
|
// If linking system libraries and targeting the native abi, default to
|
|
// using the system libc installation.
|
|
if (link_system_libs and is_native_abi and !target.isMinGW()) {
|
|
if (target.isDarwin()) {
|
|
return if (has_macos_sdk)
|
|
// For Darwin/macOS, we are all set with getDarwinSDK found earlier.
|
|
LibCDirs{
|
|
.libc_include_dir_list = &[0][]u8{},
|
|
.libc_installation = null,
|
|
}
|
|
else
|
|
getZigShippedLibCIncludeDirsDarwin(arena, zig_lib_dir, target);
|
|
}
|
|
const libc = try arena.create(LibCInstallation);
|
|
libc.* = try LibCInstallation.findNative(.{ .allocator = arena, .verbose = true });
|
|
return detectLibCFromLibCInstallation(arena, target, libc);
|
|
}
|
|
|
|
// If not linking system libraries, build and provide our own libc by
|
|
// default if possible.
|
|
if (target_util.canBuildLibC(target)) {
|
|
switch (target.os.tag) {
|
|
.macos => return if (has_macos_sdk)
|
|
// For Darwin/macOS, we are all set with getDarwinSDK found earlier.
|
|
LibCDirs{
|
|
.libc_include_dir_list = &[0][]u8{},
|
|
.libc_installation = null,
|
|
}
|
|
else
|
|
getZigShippedLibCIncludeDirsDarwin(arena, zig_lib_dir, target),
|
|
else => {
|
|
const generic_name = target_util.libCGenericName(target);
|
|
// Some architectures are handled by the same set of headers.
|
|
const arch_name = if (target.abi.isMusl())
|
|
musl.archName(target.cpu.arch)
|
|
else if (target.cpu.arch.isThumb())
|
|
// ARM headers are valid for Thumb too.
|
|
switch (target.cpu.arch) {
|
|
.thumb => "arm",
|
|
.thumbeb => "armeb",
|
|
else => unreachable,
|
|
}
|
|
else
|
|
@tagName(target.cpu.arch);
|
|
const os_name = @tagName(target.os.tag);
|
|
// Musl's headers are ABI-agnostic and so they all have the "musl" ABI name.
|
|
const abi_name = if (target.abi.isMusl()) "musl" else @tagName(target.abi);
|
|
const s = std.fs.path.sep_str;
|
|
const arch_include_dir = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "{s}-{s}-{s}",
|
|
.{ zig_lib_dir, arch_name, os_name, abi_name },
|
|
);
|
|
const generic_include_dir = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "generic-{s}",
|
|
.{ zig_lib_dir, generic_name },
|
|
);
|
|
const generic_arch_name = target_util.osArchName(target);
|
|
const arch_os_include_dir = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "{s}-{s}-any",
|
|
.{ zig_lib_dir, generic_arch_name, os_name },
|
|
);
|
|
const generic_os_include_dir = try std.fmt.allocPrint(
|
|
arena,
|
|
"{s}" ++ s ++ "libc" ++ s ++ "include" ++ s ++ "any-{s}-any",
|
|
.{ zig_lib_dir, os_name },
|
|
);
|
|
|
|
const list = try arena.alloc([]const u8, 4);
|
|
list[0] = arch_include_dir;
|
|
list[1] = generic_include_dir;
|
|
list[2] = arch_os_include_dir;
|
|
list[3] = generic_os_include_dir;
|
|
|
|
return LibCDirs{
|
|
.libc_include_dir_list = list,
|
|
.libc_installation = null,
|
|
};
|
|
},
|
|
}
|
|
}
|
|
|
|
// If zig can't build the libc for the target and we are targeting the
|
|
// native abi, fall back to using the system libc installation.
|
|
// On windows, instead of the native (mingw) abi, we want to check
|
|
// for the MSVC abi as a fallback.
|
|
const use_system_abi = if (builtin.target.os.tag == .windows)
|
|
target.abi == .msvc
|
|
else
|
|
is_native_abi;
|
|
|
|
if (use_system_abi) {
|
|
const libc = try arena.create(LibCInstallation);
|
|
libc.* = try LibCInstallation.findNative(.{ .allocator = arena, .verbose = true });
|
|
return detectLibCFromLibCInstallation(arena, target, libc);
|
|
}
|
|
|
|
return LibCDirs{
|
|
.libc_include_dir_list = &[0][]u8{},
|
|
.libc_installation = null,
|
|
};
|
|
}
|
|
|
|
fn detectLibCFromLibCInstallation(arena: Allocator, target: Target, lci: *const LibCInstallation) !LibCDirs {
|
|
var list = try std.ArrayList([]const u8).initCapacity(arena, 5);
|
|
|
|
list.appendAssumeCapacity(lci.include_dir.?);
|
|
|
|
const is_redundant = mem.eql(u8, lci.sys_include_dir.?, lci.include_dir.?);
|
|
if (!is_redundant) list.appendAssumeCapacity(lci.sys_include_dir.?);
|
|
|
|
if (target.os.tag == .windows) {
|
|
if (std.fs.path.dirname(lci.include_dir.?)) |include_dir_parent| {
|
|
const um_dir = try std.fs.path.join(arena, &[_][]const u8{ include_dir_parent, "um" });
|
|
list.appendAssumeCapacity(um_dir);
|
|
|
|
const shared_dir = try std.fs.path.join(arena, &[_][]const u8{ include_dir_parent, "shared" });
|
|
list.appendAssumeCapacity(shared_dir);
|
|
}
|
|
}
|
|
if (target.os.tag == .haiku) {
|
|
const include_dir_path = lci.include_dir orelse return error.LibCInstallationNotAvailable;
|
|
const os_dir = try std.fs.path.join(arena, &[_][]const u8{ include_dir_path, "os" });
|
|
list.appendAssumeCapacity(os_dir);
|
|
// Errors.h
|
|
const os_support_dir = try std.fs.path.join(arena, &[_][]const u8{ include_dir_path, "os/support" });
|
|
list.appendAssumeCapacity(os_support_dir);
|
|
|
|
const config_dir = try std.fs.path.join(arena, &[_][]const u8{ include_dir_path, "config" });
|
|
list.appendAssumeCapacity(config_dir);
|
|
}
|
|
|
|
return LibCDirs{
|
|
.libc_include_dir_list = list.items,
|
|
.libc_installation = lci,
|
|
};
|
|
}
|
|
|
|
pub fn get_libc_crt_file(comp: *Compilation, arena: Allocator, basename: []const u8) ![]const u8 {
|
|
if (comp.wantBuildGLibCFromSource() or
|
|
comp.wantBuildMuslFromSource() or
|
|
comp.wantBuildMinGWFromSource() or
|
|
comp.wantBuildWasiLibcFromSource())
|
|
{
|
|
return comp.crt_files.get(basename).?.full_object_path;
|
|
}
|
|
const lci = comp.bin_file.options.libc_installation orelse return error.LibCInstallationNotAvailable;
|
|
const crt_dir_path = lci.crt_dir orelse return error.LibCInstallationMissingCRTDir;
|
|
const full_path = try std.fs.path.join(arena, &[_][]const u8{ crt_dir_path, basename });
|
|
return full_path;
|
|
}
|
|
|
|
fn wantBuildLibCFromSource(comp: Compilation) bool {
|
|
const is_exe_or_dyn_lib = switch (comp.bin_file.options.output_mode) {
|
|
.Obj => false,
|
|
.Lib => comp.bin_file.options.link_mode == .Dynamic,
|
|
.Exe => true,
|
|
};
|
|
return comp.bin_file.options.link_libc and is_exe_or_dyn_lib and
|
|
comp.bin_file.options.libc_installation == null and
|
|
comp.bin_file.options.object_format != .c;
|
|
}
|
|
|
|
fn wantBuildGLibCFromSource(comp: Compilation) bool {
|
|
return comp.wantBuildLibCFromSource() and comp.getTarget().isGnuLibC();
|
|
}
|
|
|
|
fn wantBuildMuslFromSource(comp: Compilation) bool {
|
|
return comp.wantBuildLibCFromSource() and comp.getTarget().isMusl() and
|
|
!comp.getTarget().isWasm();
|
|
}
|
|
|
|
fn wantBuildWasiLibcFromSource(comp: Compilation) bool {
|
|
return comp.wantBuildLibCFromSource() and comp.getTarget().isWasm() and
|
|
comp.getTarget().os.tag == .wasi;
|
|
}
|
|
|
|
fn wantBuildMinGWFromSource(comp: Compilation) bool {
|
|
return comp.wantBuildLibCFromSource() and comp.getTarget().isMinGW();
|
|
}
|
|
|
|
fn wantBuildLibUnwindFromSource(comp: *Compilation) bool {
|
|
const is_exe_or_dyn_lib = switch (comp.bin_file.options.output_mode) {
|
|
.Obj => false,
|
|
.Lib => comp.bin_file.options.link_mode == .Dynamic,
|
|
.Exe => true,
|
|
};
|
|
return is_exe_or_dyn_lib and comp.bin_file.options.link_libunwind and
|
|
comp.bin_file.options.object_format != .c;
|
|
}
|
|
|
|
fn setMiscFailure(
|
|
comp: *Compilation,
|
|
tag: MiscTask,
|
|
comptime format: []const u8,
|
|
args: anytype,
|
|
) Allocator.Error!void {
|
|
try comp.misc_failures.ensureUnusedCapacity(comp.gpa, 1);
|
|
const msg = try std.fmt.allocPrint(comp.gpa, format, args);
|
|
const gop = comp.misc_failures.getOrPutAssumeCapacity(tag);
|
|
if (gop.found_existing) {
|
|
gop.value_ptr.deinit(comp.gpa);
|
|
}
|
|
gop.value_ptr.* = .{ .msg = msg };
|
|
}
|
|
|
|
pub fn dump_argv(argv: []const []const u8) void {
|
|
for (argv[0 .. argv.len - 1]) |arg| {
|
|
std.debug.print("{s} ", .{arg});
|
|
}
|
|
std.debug.print("{s}\n", .{argv[argv.len - 1]});
|
|
}
|
|
|
|
pub fn generateBuiltinZigSource(comp: *Compilation, allocator: Allocator) Allocator.Error![:0]u8 {
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
var buffer = std.ArrayList(u8).init(allocator);
|
|
defer buffer.deinit();
|
|
|
|
const target = comp.getTarget();
|
|
const generic_arch_name = target.cpu.arch.genericName();
|
|
const use_stage1 = build_options.is_stage1 and comp.bin_file.options.use_stage1;
|
|
|
|
const zig_backend: std.builtin.CompilerBackend = blk: {
|
|
if (use_stage1) break :blk .stage1;
|
|
if (build_options.have_llvm and comp.bin_file.options.use_llvm) break :blk .stage2_llvm;
|
|
if (comp.bin_file.options.object_format == .c) break :blk .stage2_c;
|
|
break :blk switch (target.cpu.arch) {
|
|
.wasm32, .wasm64 => std.builtin.CompilerBackend.stage2_wasm,
|
|
.arm, .armeb, .thumb, .thumbeb => .stage2_arm,
|
|
.x86_64 => .stage2_x86_64,
|
|
.i386 => .stage2_x86,
|
|
.aarch64, .aarch64_be, .aarch64_32 => .stage2_aarch64,
|
|
.riscv64 => .stage2_riscv64,
|
|
else => .other,
|
|
};
|
|
};
|
|
|
|
@setEvalBranchQuota(4000);
|
|
try buffer.writer().print(
|
|
\\const std = @import("std");
|
|
\\/// Zig version. When writing code that supports multiple versions of Zig, prefer
|
|
\\/// feature detection (i.e. with `@hasDecl` or `@hasField`) over version checks.
|
|
\\pub const zig_version = std.SemanticVersion.parse("{s}") catch unreachable;
|
|
\\pub const zig_backend = std.builtin.CompilerBackend.{};
|
|
\\/// Temporary until self-hosted supports the `cpu.arch` value.
|
|
\\pub const stage2_arch: std.Target.Cpu.Arch = .{};
|
|
\\
|
|
\\pub const output_mode = std.builtin.OutputMode.{};
|
|
\\pub const link_mode = std.builtin.LinkMode.{};
|
|
\\pub const is_test = {};
|
|
\\pub const single_threaded = {};
|
|
\\pub const abi = std.Target.Abi.{};
|
|
\\pub const cpu: std.Target.Cpu = .{{
|
|
\\ .arch = .{},
|
|
\\ .model = &std.Target.{}.cpu.{},
|
|
\\ .features = std.Target.{}.featureSet(&[_]std.Target.{}.Feature{{
|
|
\\
|
|
, .{
|
|
build_options.version,
|
|
std.zig.fmtId(@tagName(zig_backend)),
|
|
std.zig.fmtId(@tagName(target.cpu.arch)),
|
|
std.zig.fmtId(@tagName(comp.bin_file.options.output_mode)),
|
|
std.zig.fmtId(@tagName(comp.bin_file.options.link_mode)),
|
|
comp.bin_file.options.is_test,
|
|
comp.bin_file.options.single_threaded,
|
|
std.zig.fmtId(@tagName(target.abi)),
|
|
std.zig.fmtId(@tagName(target.cpu.arch)),
|
|
std.zig.fmtId(generic_arch_name),
|
|
std.zig.fmtId(target.cpu.model.name),
|
|
std.zig.fmtId(generic_arch_name),
|
|
std.zig.fmtId(generic_arch_name),
|
|
});
|
|
|
|
for (target.cpu.arch.allFeaturesList()) |feature, index_usize| {
|
|
const index = @intCast(std.Target.Cpu.Feature.Set.Index, index_usize);
|
|
const is_enabled = target.cpu.features.isEnabled(index);
|
|
if (is_enabled) {
|
|
try buffer.writer().print(" .{},\n", .{std.zig.fmtId(feature.name)});
|
|
}
|
|
}
|
|
|
|
try buffer.writer().print(
|
|
\\ }}),
|
|
\\}};
|
|
\\pub const os = std.Target.Os{{
|
|
\\ .tag = .{},
|
|
\\ .version_range = .{{
|
|
,
|
|
.{std.zig.fmtId(@tagName(target.os.tag))},
|
|
);
|
|
|
|
switch (target.os.getVersionRange()) {
|
|
.none => try buffer.appendSlice(" .none = {} }\n"),
|
|
.semver => |semver| try buffer.writer().print(
|
|
\\ .semver = .{{
|
|
\\ .min = .{{
|
|
\\ .major = {},
|
|
\\ .minor = {},
|
|
\\ .patch = {},
|
|
\\ }},
|
|
\\ .max = .{{
|
|
\\ .major = {},
|
|
\\ .minor = {},
|
|
\\ .patch = {},
|
|
\\ }},
|
|
\\ }}}},
|
|
\\
|
|
, .{
|
|
semver.min.major,
|
|
semver.min.minor,
|
|
semver.min.patch,
|
|
|
|
semver.max.major,
|
|
semver.max.minor,
|
|
semver.max.patch,
|
|
}),
|
|
.linux => |linux| try buffer.writer().print(
|
|
\\ .linux = .{{
|
|
\\ .range = .{{
|
|
\\ .min = .{{
|
|
\\ .major = {},
|
|
\\ .minor = {},
|
|
\\ .patch = {},
|
|
\\ }},
|
|
\\ .max = .{{
|
|
\\ .major = {},
|
|
\\ .minor = {},
|
|
\\ .patch = {},
|
|
\\ }},
|
|
\\ }},
|
|
\\ .glibc = .{{
|
|
\\ .major = {},
|
|
\\ .minor = {},
|
|
\\ .patch = {},
|
|
\\ }},
|
|
\\ }}}},
|
|
\\
|
|
, .{
|
|
linux.range.min.major,
|
|
linux.range.min.minor,
|
|
linux.range.min.patch,
|
|
|
|
linux.range.max.major,
|
|
linux.range.max.minor,
|
|
linux.range.max.patch,
|
|
|
|
linux.glibc.major,
|
|
linux.glibc.minor,
|
|
linux.glibc.patch,
|
|
}),
|
|
.windows => |windows| try buffer.writer().print(
|
|
\\ .windows = .{{
|
|
\\ .min = {s},
|
|
\\ .max = {s},
|
|
\\ }}}},
|
|
\\
|
|
,
|
|
.{ windows.min, windows.max },
|
|
),
|
|
}
|
|
try buffer.appendSlice("};\n");
|
|
|
|
// This is so that compiler_rt and libc.zig libraries know whether they
|
|
// will eventually be linked with libc. They make different decisions
|
|
// about what to export depending on whether another libc will be linked
|
|
// in. For example, compiler_rt will not export the __chkstk symbol if it
|
|
// knows libc will provide it, and likewise c.zig will not export memcpy.
|
|
const link_libc = comp.bin_file.options.link_libc or
|
|
(comp.bin_file.options.skip_linker_dependencies and comp.bin_file.options.parent_compilation_link_libc);
|
|
|
|
try buffer.writer().print(
|
|
\\pub const target = std.Target{{
|
|
\\ .cpu = cpu,
|
|
\\ .os = os,
|
|
\\ .abi = abi,
|
|
\\}};
|
|
\\pub const object_format = std.Target.ObjectFormat.{};
|
|
\\pub const mode = std.builtin.Mode.{};
|
|
\\pub const link_libc = {};
|
|
\\pub const link_libcpp = {};
|
|
\\pub const have_error_return_tracing = {};
|
|
\\pub const valgrind_support = {};
|
|
\\pub const position_independent_code = {};
|
|
\\pub const position_independent_executable = {};
|
|
\\pub const strip_debug_info = {};
|
|
\\pub const code_model = std.builtin.CodeModel.{};
|
|
\\
|
|
, .{
|
|
std.zig.fmtId(@tagName(comp.bin_file.options.object_format)),
|
|
std.zig.fmtId(@tagName(comp.bin_file.options.optimize_mode)),
|
|
link_libc,
|
|
comp.bin_file.options.link_libcpp,
|
|
comp.bin_file.options.error_return_tracing,
|
|
comp.bin_file.options.valgrind,
|
|
comp.bin_file.options.pic,
|
|
comp.bin_file.options.pie,
|
|
comp.bin_file.options.strip,
|
|
std.zig.fmtId(@tagName(comp.bin_file.options.machine_code_model)),
|
|
});
|
|
|
|
if (target.os.tag == .wasi) {
|
|
const wasi_exec_model_fmt = std.zig.fmtId(@tagName(comp.bin_file.options.wasi_exec_model));
|
|
try buffer.writer().print(
|
|
\\pub const wasi_exec_model = std.builtin.WasiExecModel.{};
|
|
\\
|
|
, .{wasi_exec_model_fmt});
|
|
}
|
|
|
|
if (comp.bin_file.options.is_test) {
|
|
try buffer.appendSlice(
|
|
\\pub var test_functions: []std.builtin.TestFn = undefined; // overwritten later
|
|
\\
|
|
);
|
|
if (comp.test_evented_io) {
|
|
try buffer.appendSlice(
|
|
\\pub const test_io_mode = .evented;
|
|
\\
|
|
);
|
|
} else {
|
|
try buffer.appendSlice(
|
|
\\pub const test_io_mode = .blocking;
|
|
\\
|
|
);
|
|
}
|
|
}
|
|
|
|
return buffer.toOwnedSliceSentinel(0);
|
|
}
|
|
|
|
pub fn updateSubCompilation(sub_compilation: *Compilation) !void {
|
|
try sub_compilation.update();
|
|
|
|
// Look for compilation errors in this sub_compilation
|
|
// TODO instead of logging these errors, handle them in the callsites
|
|
// of updateSubCompilation and attach them as sub-errors, properly
|
|
// surfacing the errors. You can see an example of this already
|
|
// done inside buildOutputFromZig.
|
|
var errors = try sub_compilation.getAllErrorsAlloc();
|
|
defer errors.deinit(sub_compilation.gpa);
|
|
|
|
if (errors.list.len != 0) {
|
|
for (errors.list) |full_err_msg| {
|
|
switch (full_err_msg) {
|
|
.src => |src| {
|
|
log.err("{s}:{d}:{d}: {s}", .{
|
|
src.src_path,
|
|
src.line + 1,
|
|
src.column + 1,
|
|
src.msg,
|
|
});
|
|
},
|
|
.plain => |plain| {
|
|
log.err("{s}", .{plain.msg});
|
|
},
|
|
}
|
|
}
|
|
return error.BuildingLibCObjectFailed;
|
|
}
|
|
}
|
|
|
|
fn buildOutputFromZig(
|
|
comp: *Compilation,
|
|
src_basename: []const u8,
|
|
output_mode: std.builtin.OutputMode,
|
|
out: *?CRTFile,
|
|
misc_task_tag: MiscTask,
|
|
) !void {
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
std.debug.assert(output_mode != .Exe);
|
|
const special_sub = "std" ++ std.fs.path.sep_str ++ "special";
|
|
const special_path = try comp.zig_lib_directory.join(comp.gpa, &[_][]const u8{special_sub});
|
|
defer comp.gpa.free(special_path);
|
|
|
|
var special_dir = try comp.zig_lib_directory.handle.openDir(special_sub, .{});
|
|
defer special_dir.close();
|
|
|
|
var main_pkg: Package = .{
|
|
.root_src_directory = .{
|
|
.path = special_path,
|
|
.handle = special_dir,
|
|
},
|
|
.root_src_path = src_basename,
|
|
};
|
|
defer main_pkg.deinitTable(comp.gpa);
|
|
const root_name = src_basename[0 .. src_basename.len - std.fs.path.extension(src_basename).len];
|
|
const target = comp.getTarget();
|
|
const bin_basename = try std.zig.binNameAlloc(comp.gpa, .{
|
|
.root_name = root_name,
|
|
.target = target,
|
|
.output_mode = output_mode,
|
|
});
|
|
defer comp.gpa.free(bin_basename);
|
|
|
|
const emit_bin = Compilation.EmitLoc{
|
|
.directory = null, // Put it in the cache directory.
|
|
.basename = bin_basename,
|
|
};
|
|
const sub_compilation = try Compilation.create(comp.gpa, .{
|
|
.global_cache_directory = comp.global_cache_directory,
|
|
.local_cache_directory = comp.global_cache_directory,
|
|
.zig_lib_directory = comp.zig_lib_directory,
|
|
.cache_mode = .whole,
|
|
.target = target,
|
|
.root_name = root_name,
|
|
.main_pkg = &main_pkg,
|
|
.output_mode = output_mode,
|
|
.thread_pool = comp.thread_pool,
|
|
.libc_installation = comp.bin_file.options.libc_installation,
|
|
.emit_bin = emit_bin,
|
|
.optimize_mode = comp.compilerRtOptMode(),
|
|
.link_mode = .Static,
|
|
.function_sections = true,
|
|
.want_sanitize_c = false,
|
|
.want_stack_check = false,
|
|
.want_red_zone = comp.bin_file.options.red_zone,
|
|
.omit_frame_pointer = comp.bin_file.options.omit_frame_pointer,
|
|
.want_valgrind = false,
|
|
.want_tsan = false,
|
|
.want_pic = comp.bin_file.options.pic,
|
|
.want_pie = comp.bin_file.options.pie,
|
|
.emit_h = null,
|
|
.strip = comp.compilerRtStrip(),
|
|
.is_native_os = comp.bin_file.options.is_native_os,
|
|
.is_native_abi = comp.bin_file.options.is_native_abi,
|
|
.self_exe_path = comp.self_exe_path,
|
|
.verbose_cc = comp.verbose_cc,
|
|
.verbose_link = comp.bin_file.options.verbose_link,
|
|
.verbose_air = comp.verbose_air,
|
|
.verbose_llvm_ir = comp.verbose_llvm_ir,
|
|
.verbose_cimport = comp.verbose_cimport,
|
|
.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
|
|
.clang_passthrough_mode = comp.clang_passthrough_mode,
|
|
.skip_linker_dependencies = true,
|
|
.parent_compilation_link_libc = comp.bin_file.options.link_libc,
|
|
});
|
|
defer sub_compilation.destroy();
|
|
|
|
try sub_compilation.update();
|
|
// Look for compilation errors in this sub_compilation.
|
|
var keep_errors = false;
|
|
var errors = try sub_compilation.getAllErrorsAlloc();
|
|
defer if (!keep_errors) errors.deinit(sub_compilation.gpa);
|
|
|
|
if (errors.list.len != 0) {
|
|
try comp.misc_failures.ensureUnusedCapacity(comp.gpa, 1);
|
|
comp.misc_failures.putAssumeCapacityNoClobber(misc_task_tag, .{
|
|
.msg = try std.fmt.allocPrint(comp.gpa, "sub-compilation of {s} failed", .{
|
|
@tagName(misc_task_tag),
|
|
}),
|
|
.children = errors,
|
|
});
|
|
keep_errors = true;
|
|
return error.SubCompilationFailed;
|
|
}
|
|
|
|
assert(out.* == null);
|
|
out.* = Compilation.CRTFile{
|
|
.full_object_path = try sub_compilation.bin_file.options.emit.?.directory.join(comp.gpa, &[_][]const u8{
|
|
sub_compilation.bin_file.options.emit.?.sub_path,
|
|
}),
|
|
.lock = sub_compilation.bin_file.toOwnedLock(),
|
|
};
|
|
}
|
|
|
|
fn updateStage1Module(comp: *Compilation, main_progress_node: *std.Progress.Node) !void {
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
var arena_allocator = std.heap.ArenaAllocator.init(comp.gpa);
|
|
defer arena_allocator.deinit();
|
|
const arena = arena_allocator.allocator();
|
|
|
|
// Here we use the legacy stage1 C++ compiler to compile Zig code.
|
|
const mod = comp.bin_file.options.module.?;
|
|
const directory = mod.zig_cache_artifact_directory; // Just an alias to make it shorter to type.
|
|
const main_zig_file = try mod.main_pkg.root_src_directory.join(arena, &[_][]const u8{
|
|
mod.main_pkg.root_src_path,
|
|
});
|
|
const zig_lib_dir = comp.zig_lib_directory.path.?;
|
|
const target = comp.getTarget();
|
|
|
|
// The include_compiler_rt stored in the bin file options here means that we need
|
|
// compiler-rt symbols *somehow*. However, in the context of using the stage1 backend
|
|
// we need to tell stage1 to include compiler-rt only if stage1 is the place that
|
|
// needs to provide those symbols. Otherwise the stage2 infrastructure will take care
|
|
// of it in the linker, by putting compiler_rt.o into a static archive, or linking
|
|
// compiler_rt.a against an executable. In other words we only want to set this flag
|
|
// for stage1 if we are using build-obj.
|
|
const include_compiler_rt = comp.bin_file.options.output_mode == .Obj and
|
|
comp.bin_file.options.include_compiler_rt;
|
|
|
|
const stage2_target = try arena.create(stage1.Stage2Target);
|
|
stage2_target.* = .{
|
|
.arch = @enumToInt(target.cpu.arch) + 1, // skip over ZigLLVM_UnknownArch
|
|
.os = @enumToInt(target.os.tag),
|
|
.abi = @enumToInt(target.abi),
|
|
.is_native_os = comp.bin_file.options.is_native_os,
|
|
.is_native_cpu = false, // Only true when bootstrapping the compiler.
|
|
.llvm_cpu_name = if (target.cpu.model.llvm_name) |s| s.ptr else null,
|
|
.llvm_cpu_features = comp.bin_file.options.llvm_cpu_features.?,
|
|
.llvm_target_abi = if (target_util.llvmMachineAbi(target)) |s| s.ptr else null,
|
|
};
|
|
|
|
const main_pkg_path = mod.main_pkg.root_src_directory.path orelse "";
|
|
const builtin_pkg = mod.main_pkg.table.get("builtin").?;
|
|
const builtin_zig_path = try builtin_pkg.root_src_directory.join(arena, &.{builtin_pkg.root_src_path});
|
|
|
|
const stage1_module = stage1.create(
|
|
@enumToInt(comp.bin_file.options.optimize_mode),
|
|
main_pkg_path.ptr,
|
|
main_pkg_path.len,
|
|
main_zig_file.ptr,
|
|
main_zig_file.len,
|
|
zig_lib_dir.ptr,
|
|
zig_lib_dir.len,
|
|
stage2_target,
|
|
comp.bin_file.options.is_test,
|
|
) orelse return error.OutOfMemory;
|
|
|
|
const emit_bin_path = if (comp.bin_file.options.emit != null) blk: {
|
|
const obj_basename = try std.zig.binNameAlloc(arena, .{
|
|
.root_name = comp.bin_file.options.root_name,
|
|
.target = target,
|
|
.output_mode = .Obj,
|
|
});
|
|
break :blk try directory.join(arena, &[_][]const u8{obj_basename});
|
|
} else "";
|
|
|
|
if (mod.emit_h != null) {
|
|
log.warn("-femit-h is not available in the stage1 backend; no .h file will be produced", .{});
|
|
}
|
|
const emit_h_loc: ?EmitLoc = if (mod.emit_h) |emit_h| emit_h.loc else null;
|
|
const emit_h_path = try stage1LocPath(arena, emit_h_loc, directory);
|
|
const emit_asm_path = try stage1LocPath(arena, comp.emit_asm, directory);
|
|
const emit_llvm_ir_path = try stage1LocPath(arena, comp.emit_llvm_ir, directory);
|
|
const emit_llvm_bc_path = try stage1LocPath(arena, comp.emit_llvm_bc, directory);
|
|
const emit_analysis_path = try stage1LocPath(arena, comp.emit_analysis, directory);
|
|
const emit_docs_path = try stage1LocPath(arena, comp.emit_docs, directory);
|
|
const stage1_pkg = try createStage1Pkg(arena, "root", mod.main_pkg, null);
|
|
const test_filter = comp.test_filter orelse ""[0..0];
|
|
const test_name_prefix = comp.test_name_prefix orelse ""[0..0];
|
|
const subsystem = if (comp.bin_file.options.subsystem) |s|
|
|
@intToEnum(stage1.TargetSubsystem, @enumToInt(s))
|
|
else
|
|
stage1.TargetSubsystem.Auto;
|
|
stage1_module.* = .{
|
|
.root_name_ptr = comp.bin_file.options.root_name.ptr,
|
|
.root_name_len = comp.bin_file.options.root_name.len,
|
|
.emit_o_ptr = emit_bin_path.ptr,
|
|
.emit_o_len = emit_bin_path.len,
|
|
.emit_h_ptr = emit_h_path.ptr,
|
|
.emit_h_len = emit_h_path.len,
|
|
.emit_asm_ptr = emit_asm_path.ptr,
|
|
.emit_asm_len = emit_asm_path.len,
|
|
.emit_llvm_ir_ptr = emit_llvm_ir_path.ptr,
|
|
.emit_llvm_ir_len = emit_llvm_ir_path.len,
|
|
.emit_bitcode_ptr = emit_llvm_bc_path.ptr,
|
|
.emit_bitcode_len = emit_llvm_bc_path.len,
|
|
.emit_analysis_json_ptr = emit_analysis_path.ptr,
|
|
.emit_analysis_json_len = emit_analysis_path.len,
|
|
.emit_docs_ptr = emit_docs_path.ptr,
|
|
.emit_docs_len = emit_docs_path.len,
|
|
.builtin_zig_path_ptr = builtin_zig_path.ptr,
|
|
.builtin_zig_path_len = builtin_zig_path.len,
|
|
.test_filter_ptr = test_filter.ptr,
|
|
.test_filter_len = test_filter.len,
|
|
.test_name_prefix_ptr = test_name_prefix.ptr,
|
|
.test_name_prefix_len = test_name_prefix.len,
|
|
.userdata = @ptrToInt(comp),
|
|
.main_pkg = stage1_pkg,
|
|
.code_model = @enumToInt(comp.bin_file.options.machine_code_model),
|
|
.subsystem = subsystem,
|
|
.err_color = @enumToInt(comp.color),
|
|
.pic = comp.bin_file.options.pic,
|
|
.pie = comp.bin_file.options.pie,
|
|
.lto = comp.bin_file.options.lto,
|
|
.unwind_tables = comp.unwind_tables,
|
|
.link_libc = comp.bin_file.options.link_libc,
|
|
.link_libcpp = comp.bin_file.options.link_libcpp,
|
|
.strip = comp.bin_file.options.strip,
|
|
.is_single_threaded = comp.bin_file.options.single_threaded,
|
|
.dll_export_fns = comp.bin_file.options.dll_export_fns,
|
|
.link_mode_dynamic = comp.bin_file.options.link_mode == .Dynamic,
|
|
.valgrind_enabled = comp.bin_file.options.valgrind,
|
|
.tsan_enabled = comp.bin_file.options.tsan,
|
|
.function_sections = comp.bin_file.options.function_sections,
|
|
.include_compiler_rt = include_compiler_rt,
|
|
.enable_stack_probing = comp.bin_file.options.stack_check,
|
|
.red_zone = comp.bin_file.options.red_zone,
|
|
.omit_frame_pointer = comp.bin_file.options.omit_frame_pointer,
|
|
.enable_time_report = comp.time_report,
|
|
.enable_stack_report = comp.stack_report,
|
|
.test_is_evented = comp.test_evented_io,
|
|
.verbose_ir = comp.verbose_air,
|
|
.verbose_llvm_ir = comp.verbose_llvm_ir,
|
|
.verbose_cimport = comp.verbose_cimport,
|
|
.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
|
|
.main_progress_node = main_progress_node,
|
|
.have_c_main = false,
|
|
.have_winmain = false,
|
|
.have_wwinmain = false,
|
|
.have_winmain_crt_startup = false,
|
|
.have_wwinmain_crt_startup = false,
|
|
.have_dllmain_crt_startup = false,
|
|
};
|
|
|
|
stage1_module.build_object();
|
|
|
|
mod.stage1_flags = .{
|
|
.have_c_main = stage1_module.have_c_main,
|
|
.have_winmain = stage1_module.have_winmain,
|
|
.have_wwinmain = stage1_module.have_wwinmain,
|
|
.have_winmain_crt_startup = stage1_module.have_winmain_crt_startup,
|
|
.have_wwinmain_crt_startup = stage1_module.have_wwinmain_crt_startup,
|
|
.have_dllmain_crt_startup = stage1_module.have_dllmain_crt_startup,
|
|
};
|
|
|
|
stage1_module.destroy();
|
|
}
|
|
|
|
fn stage1LocPath(arena: Allocator, opt_loc: ?EmitLoc, cache_directory: Directory) ![]const u8 {
|
|
const loc = opt_loc orelse return "";
|
|
const directory = loc.directory orelse cache_directory;
|
|
return directory.join(arena, &[_][]const u8{loc.basename});
|
|
}
|
|
|
|
fn createStage1Pkg(
|
|
arena: Allocator,
|
|
name: []const u8,
|
|
pkg: *Package,
|
|
parent_pkg: ?*stage1.Pkg,
|
|
) error{OutOfMemory}!*stage1.Pkg {
|
|
const child_pkg = try arena.create(stage1.Pkg);
|
|
|
|
const pkg_children = blk: {
|
|
var children = std.ArrayList(*stage1.Pkg).init(arena);
|
|
var it = pkg.table.iterator();
|
|
while (it.next()) |entry| {
|
|
if (mem.eql(u8, entry.key_ptr.*, "std") or
|
|
mem.eql(u8, entry.key_ptr.*, "builtin") or
|
|
mem.eql(u8, entry.key_ptr.*, "root"))
|
|
{
|
|
continue;
|
|
}
|
|
try children.append(try createStage1Pkg(arena, entry.key_ptr.*, entry.value_ptr.*, child_pkg));
|
|
}
|
|
break :blk children.items;
|
|
};
|
|
|
|
const src_path = try pkg.root_src_directory.join(arena, &[_][]const u8{pkg.root_src_path});
|
|
|
|
child_pkg.* = .{
|
|
.name_ptr = name.ptr,
|
|
.name_len = name.len,
|
|
.path_ptr = src_path.ptr,
|
|
.path_len = src_path.len,
|
|
.children_ptr = pkg_children.ptr,
|
|
.children_len = pkg_children.len,
|
|
.parent = parent_pkg,
|
|
};
|
|
return child_pkg;
|
|
}
|
|
|
|
pub fn build_crt_file(
|
|
comp: *Compilation,
|
|
root_name: []const u8,
|
|
output_mode: std.builtin.OutputMode,
|
|
c_source_files: []const Compilation.CSourceFile,
|
|
) !void {
|
|
const tracy_trace = trace(@src());
|
|
defer tracy_trace.end();
|
|
|
|
const target = comp.getTarget();
|
|
const basename = try std.zig.binNameAlloc(comp.gpa, .{
|
|
.root_name = root_name,
|
|
.target = target,
|
|
.output_mode = output_mode,
|
|
});
|
|
errdefer comp.gpa.free(basename);
|
|
|
|
// TODO: This is extracted into a local variable to work around a stage1 miscompilation.
|
|
const emit_bin = Compilation.EmitLoc{
|
|
.directory = null, // Put it in the cache directory.
|
|
.basename = basename,
|
|
};
|
|
const sub_compilation = try Compilation.create(comp.gpa, .{
|
|
.local_cache_directory = comp.global_cache_directory,
|
|
.global_cache_directory = comp.global_cache_directory,
|
|
.zig_lib_directory = comp.zig_lib_directory,
|
|
.cache_mode = .whole,
|
|
.target = target,
|
|
.root_name = root_name,
|
|
.main_pkg = null,
|
|
.output_mode = output_mode,
|
|
.thread_pool = comp.thread_pool,
|
|
.libc_installation = comp.bin_file.options.libc_installation,
|
|
.emit_bin = emit_bin,
|
|
.optimize_mode = comp.compilerRtOptMode(),
|
|
.want_sanitize_c = false,
|
|
.want_stack_check = false,
|
|
.want_red_zone = comp.bin_file.options.red_zone,
|
|
.omit_frame_pointer = comp.bin_file.options.omit_frame_pointer,
|
|
.want_valgrind = false,
|
|
.want_tsan = false,
|
|
.want_pic = comp.bin_file.options.pic,
|
|
.want_pie = comp.bin_file.options.pie,
|
|
.want_lto = switch (output_mode) {
|
|
.Lib => comp.bin_file.options.lto,
|
|
.Obj, .Exe => false,
|
|
},
|
|
.emit_h = null,
|
|
.strip = comp.compilerRtStrip(),
|
|
.is_native_os = comp.bin_file.options.is_native_os,
|
|
.is_native_abi = comp.bin_file.options.is_native_abi,
|
|
.self_exe_path = comp.self_exe_path,
|
|
.c_source_files = c_source_files,
|
|
.verbose_cc = comp.verbose_cc,
|
|
.verbose_link = comp.bin_file.options.verbose_link,
|
|
.verbose_air = comp.verbose_air,
|
|
.verbose_llvm_ir = comp.verbose_llvm_ir,
|
|
.verbose_cimport = comp.verbose_cimport,
|
|
.verbose_llvm_cpu_features = comp.verbose_llvm_cpu_features,
|
|
.clang_passthrough_mode = comp.clang_passthrough_mode,
|
|
.skip_linker_dependencies = true,
|
|
.parent_compilation_link_libc = comp.bin_file.options.link_libc,
|
|
});
|
|
defer sub_compilation.destroy();
|
|
|
|
try sub_compilation.updateSubCompilation();
|
|
|
|
try comp.crt_files.ensureUnusedCapacity(comp.gpa, 1);
|
|
|
|
comp.crt_files.putAssumeCapacityNoClobber(basename, .{
|
|
.full_object_path = try sub_compilation.bin_file.options.emit.?.directory.join(comp.gpa, &[_][]const u8{
|
|
sub_compilation.bin_file.options.emit.?.sub_path,
|
|
}),
|
|
.lock = sub_compilation.bin_file.toOwnedLock(),
|
|
});
|
|
}
|
|
|
|
pub fn stage1AddLinkLib(comp: *Compilation, lib_name: []const u8) !void {
|
|
// Avoid deadlocking on building import libs such as kernel32.lib
|
|
// This can happen when the user uses `build-exe foo.obj -lkernel32` and then
|
|
// when we create a sub-Compilation for zig libc, it also tries to build kernel32.lib.
|
|
if (comp.bin_file.options.skip_linker_dependencies) return;
|
|
|
|
// This happens when an `extern "foo"` function is referenced by the stage1 backend.
|
|
// If we haven't seen this library yet and we're targeting Windows, we need to queue up
|
|
// a work item to produce the DLL import library for this.
|
|
const gop = try comp.bin_file.options.system_libs.getOrPut(comp.gpa, lib_name);
|
|
if (!gop.found_existing and comp.getTarget().os.tag == .windows) {
|
|
try comp.work_queue.writeItem(.{
|
|
.windows_import_lib = comp.bin_file.options.system_libs.count() - 1,
|
|
});
|
|
}
|
|
}
|
|
|
|
/// This decides the optimization mode for all zig-provided libraries, including
|
|
/// compiler-rt, libcxx, libc, libunwind, etc.
|
|
pub fn compilerRtOptMode(comp: Compilation) std.builtin.Mode {
|
|
if (comp.debug_compiler_runtime_libs) {
|
|
return comp.bin_file.options.optimize_mode;
|
|
}
|
|
switch (comp.bin_file.options.optimize_mode) {
|
|
.Debug, .ReleaseSafe => return target_util.defaultCompilerRtOptimizeMode(comp.getTarget()),
|
|
.ReleaseFast => return .ReleaseFast,
|
|
.ReleaseSmall => return .ReleaseSmall,
|
|
}
|
|
}
|
|
|
|
/// This decides whether to strip debug info for all zig-provided libraries, including
|
|
/// compiler-rt, libcxx, libc, libunwind, etc.
|
|
pub fn compilerRtStrip(comp: Compilation) bool {
|
|
if (comp.debug_compiler_runtime_libs) {
|
|
return comp.bin_file.options.strip;
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|