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zig cc: Don't pass -mabi for assembly files when targeting arm.

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Clang's integrated Arm assembler doesn't understand -mabi yet, so this results
in "unused command line argument" warnings when building musl code and glibc
stubs, for example.
This commit is contained in:
Alex Rønne Petersen 2025-03-05 19:59:25 +01:00
parent 5765736867
commit db77e46b49
1 changed files with 4 additions and 1 deletions
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5
src/Compilation.zig
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@ -5631,7 +5631,10 @@ pub fn addCCArgs(
}
if (target_util.llvmMachineAbi(target)) |mabi| {
try argv.append(try std.fmt.allocPrint(arena, "-mabi={s}", .{mabi}));
// Clang's integrated Arm assembler doesn't support `-mabi` yet...
if (!(target.cpu.arch.isArm() and (ext == .assembly or ext == .assembly_with_cpp))) {
try argv.append(try std.fmt.allocPrint(arena, "-mabi={s}", .{mabi}));
}
}
// We might want to support -mfloat-abi=softfp for Arm and CSKY here in the future.