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CLI: helpful error message when libc requested but not provided

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This commit is contained in:
Andrew Kelley 2021-12-15 19:56:32 -07:00
parent c8af00c66e
commit c9863c0a0c
2 changed files with 30 additions and 2 deletions
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8
src/Compilation.zig
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@ -1586,6 +1586,8 @@ pub fn create(gpa: Allocator, options: InitOptions) !*Compilation {
// 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 },
@ -1599,6 +1601,8 @@ pub fn create(gpa: Allocator, options: InitOptions) !*Compilation {
});
}
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{
@ -1617,6 +1621,8 @@ pub fn create(gpa: Allocator, options: InitOptions) !*Compilation {
});
}
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| {
@ -1630,6 +1636,8 @@ pub fn create(gpa: Allocator, options: InitOptions) !*Compilation {
});
}
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 },

24
src/main.zig
View File

@ -2495,8 +2495,28 @@ fn buildOutputType(
.debug_compile_errors = debug_compile_errors,
.enable_link_snapshots = enable_link_snapshots,
.native_darwin_sdk = native_darwin_sdk,
}) catch |err| {
fatal("unable to create compilation: {s}", .{@errorName(err)});
}) catch |err| switch (err) {
error.LibCUnavailable => {
const target = target_info.target;
const triple_name = try target.zigTriple(arena);
std.log.err("unable to find or provide libc for target '{s}'", .{triple_name});
for (target_util.available_libcs) |t| {
if (t.arch == target.cpu.arch and t.os == target.os.tag) {
if (t.os_ver) |os_ver| {
std.log.info("zig can provide libc for related target {s}-{s}.{d}-{s}", .{
@tagName(t.arch), @tagName(t.os), os_ver.major, @tagName(t.abi),
});
} else {
std.log.info("zig can provide libc for related target {s}-{s}-{s}", .{
@tagName(t.arch), @tagName(t.os), @tagName(t.abi),
});
}
}
}
process.exit(1);
},
else => fatal("unable to create compilation: {s}", .{@errorName(err)}),
};
var comp_destroyed = false;
defer if (!comp_destroyed) comp.destroy();