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142471fcc4
Introduce the concept of "target query" and "resolved target". A target query is what the user specifies, with some things left to default. A resolved target has the default things discovered and populated. In the future, std.zig.CrossTarget will be rename to std.Target.Query. Introduces `std.Build.resolveTargetQuery` to get from one to the other. The concept of `main_mod_path` is gone, no longer supported. You have to put the root source file at the module root now. * remove deprecated API * update build.zig for the breaking API changes in this branch * move std.Build.Step.Compile.BuildId to std.zig.BuildId * add more options to std.Build.ExecutableOptions, std.Build.ObjectOptions, std.Build.SharedLibraryOptions, std.Build.StaticLibraryOptions, and std.Build.TestOptions. * remove `std.Build.constructCMacro`. There is no use for this API. * deprecate `std.Build.Step.Compile.defineCMacro`. Instead, `std.Build.Module.addCMacro` is provided. - remove `std.Build.Step.Compile.defineCMacroRaw`. * deprecate `std.Build.Step.Compile.linkFrameworkNeeded` - use `std.Build.Module.linkFramework` * deprecate `std.Build.Step.Compile.linkFrameworkWeak` - use `std.Build.Module.linkFramework` * move more logic into `std.Build.Module` * allow `target` and `optimize` to be `null` when creating a Module. Along with other fields, those unspecified options will be inherited from parent `Module` when inserted into an import table. * the `target` field of `addExecutable` is now required. pass `b.host` to get the host target.
92 lines
3.3 KiB
Zig
92 lines
3.3 KiB
Zig
const std = @import("std");
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pub const requires_stage2 = true;
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pub fn build(b: *std.Build) void {
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const test_step = b.step("test", "Test");
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b.default_step = test_step;
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add(b, test_step, .Debug, true);
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add(b, test_step, .ReleaseFast, false);
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add(b, test_step, .ReleaseSmall, false);
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add(b, test_step, .ReleaseSafe, true);
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}
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fn add(b: *std.Build, test_step: *std.Build.Step, optimize_mode: std.builtin.OptimizeMode, is_safe: bool) void {
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{
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const lib = b.addExecutable(.{
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.name = "lib",
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.root_source_file = .{ .path = "lib.zig" },
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.target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
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.optimize = optimize_mode,
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.strip = false,
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});
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lib.entry = .disabled;
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lib.use_llvm = false;
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lib.use_lld = false;
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// to make sure the bss segment is emitted, we must import memory
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lib.import_memory = true;
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lib.link_gc_sections = false;
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const check_lib = lib.checkObject();
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// since we import memory, make sure it exists with the correct naming
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check_lib.checkInHeaders();
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check_lib.checkExact("Section import");
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check_lib.checkExact("entries 1");
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check_lib.checkExact("module env"); // default module name is "env"
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check_lib.checkExact("name memory"); // as per linker specification
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// since we are importing memory, ensure it's not exported
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check_lib.checkInHeaders();
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check_lib.checkNotPresent("Section export");
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// validate the name of the stack pointer
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check_lib.checkInHeaders();
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check_lib.checkExact("Section custom");
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check_lib.checkExact("type data_segment");
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check_lib.checkExact("names 2");
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check_lib.checkExact("index 0");
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check_lib.checkExact("name .rodata");
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// for safe optimization modes `undefined` is stored in data instead of bss.
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if (is_safe) {
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check_lib.checkExact("index 1");
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check_lib.checkExact("name .data");
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check_lib.checkNotPresent("name .bss");
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} else {
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check_lib.checkExact("index 1"); // bss section always last
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check_lib.checkExact("name .bss");
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}
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test_step.dependOn(&check_lib.step);
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}
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// verify zero'd declaration is stored in bss for all optimization modes.
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{
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const lib = b.addExecutable(.{
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.name = "lib",
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.root_source_file = .{ .path = "lib2.zig" },
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.target = b.resolveTargetQuery(.{ .cpu_arch = .wasm32, .os_tag = .freestanding }),
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.optimize = optimize_mode,
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.strip = false,
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});
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lib.entry = .disabled;
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lib.use_llvm = false;
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lib.use_lld = false;
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// to make sure the bss segment is emitted, we must import memory
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lib.import_memory = true;
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lib.link_gc_sections = false;
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const check_lib = lib.checkObject();
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check_lib.checkInHeaders();
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check_lib.checkExact("Section custom");
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check_lib.checkExact("type data_segment");
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check_lib.checkExact("names 2");
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check_lib.checkExact("index 0");
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check_lib.checkExact("name .rodata");
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check_lib.checkExact("index 1");
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check_lib.checkExact("name .bss");
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test_step.dependOn(&check_lib.step);
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}
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}
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