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stage2: Implicitly enable --eh_frame_hdr when compiling c/c++ files

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Matches what Clang/GCC driver do.

Closes #7711
This commit is contained in:
LemonBoy
2021-01-08 12:48:30 +01:00
committed by Andrew Kelley
parent 95e66a915b
commit eb696e453f
1 changed files with 9 additions and 0 deletions
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9
src/main.zig
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@@ -1007,6 +1007,11 @@ fn buildOutputType(
ensure_libc_on_non_freestanding = true;
ensure_libcpp_on_non_freestanding = arg_mode == .cpp;
want_native_include_dirs = true;
// Clang's driver enables this switch unconditionally.
// Disabling the emission of .eh_frame_hdr can unexpectedly break
// some functionality that depend on it, such as C++ exceptions and
// DWARF-based stack traces.
link_eh_frame_hdr = true;
const COutMode = enum {
link,
@@ -1274,6 +1279,10 @@ fn buildOutputType(
image_base_override = std.fmt.parseUnsigned(u64, linker_args.items[i], 0) catch |err| {
fatal("unable to parse '{s}': {s}", .{ arg, @errorName(err) });
};
} else if (mem.eql(u8, arg, "--eh-frame-hdr")) {
link_eh_frame_hdr = true;
} else if (mem.eql(u8, arg, "--no-eh-frame-hdr")) {
link_eh_frame_hdr = false;
} else {
warn("unsupported linker arg: {s}", .{arg});
}