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cmd/link: switch to ld.bfd on freebsd/arm64

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Updates golang/go#35197

Change-Id: I4fd85c84475761d71d2c17e62796e0a411cf91d8
Reviewed-on: https://go-review.googlesource.com/c/go/+/203519
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Dmitri Goutnik 2019-10-27 12:22:02 -05:00 committed by Tobias Klauser
parent 1f3339f441
commit 152dddee7e
1 changed files with 13 additions and 0 deletions
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13
src/cmd/link/internal/ld/lib.go
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@ -1294,6 +1294,19 @@ func (ctxt *Link) hostlink() {
}
}
if ctxt.Arch.Family == sys.ARM64 && objabi.GOOS == "freebsd" {
// Switch to ld.bfd on freebsd/arm64.
argv = append(argv, "-fuse-ld=bfd")
// Provide a useful error if ld.bfd is missing.
cmd := exec.Command(*flagExtld, "-fuse-ld=bfd", "-Wl,--version")
if out, err := cmd.CombinedOutput(); err == nil {
if !bytes.Contains(out, []byte("GNU ld")) {
log.Fatalf("ARM64 external linker must be ld.bfd (issue #35197), please install devel/binutils")
}
}
}
if ctxt.IsELF && len(buildinfo) > 0 {
argv = append(argv, fmt.Sprintf("-Wl,--build-id=0x%x", buildinfo))
}