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cmd/internal/ld: output dwarf in external link mode on darwin

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Fixes #8973

Change-Id: Idd53fc6d9e6971ae31ed72a3df3cfdce0bfbc1fd
Reviewed-on: https://go-review.googlesource.com/8661
Reviewed-by: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
This commit is contained in:
Ryan Brown 2015-04-08 12:55:34 -07:00 • committed by Russ Cox
parent 9c9e36b340
commit 8b83306cf2
8 changed files with 527 additions and 58 deletions
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21
src/cmd/internal/ld/lib.go
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@ -922,7 +922,7 @@ func hostlink() {
}
if HEADTYPE == obj.Hdarwin {
argv = append(argv, "-Wl,-no_pie,-pagezero_size,4000000")
argv = append(argv, "-Wl,-no_pie,-pagezero_size,4000000,-headerpad,1144")
}
if HEADTYPE == obj.Hopenbsd {
argv = append(argv, "-Wl,-nopie")
@ -1029,6 +1029,25 @@ func hostlink() {
if out, err := exec.Command(argv[0], argv[1:]...).CombinedOutput(); err != nil {
Exitf("running %s failed: %v\n%s", argv[0], err, out)
}
if Debug['s'] == 0 && debug_s == 0 && HEADTYPE == obj.Hdarwin {
dsym := fmt.Sprintf("%s/go.dwarf", tmpdir)
if out, err := exec.Command("dsymutil", "-f", outfile, "-o", dsym).CombinedOutput(); err != nil {
Ctxt.Cursym = nil
Exitf("%s: running dsymutil failed: %v\n%s", os.Args[0], err, out)
}
combinedOutput := fmt.Sprintf("%s/go.combined", tmpdir)
if err := machoCombineDwarf(outfile, dsym, combinedOutput); err != nil {
Ctxt.Cursym = nil
Exitf("%s: combining dwarf failed: %v", os.Args[0], err)
}
origOutput := fmt.Sprintf("%s/go.orig", tmpdir)
os.Rename(outfile, origOutput)
if err := os.Rename(combinedOutput, outfile); err != nil {
Ctxt.Cursym = nil
Exitf("%s: rename(%s, %s) failed: %v", os.Args[0], combinedOutput, outfile, err)
}
}
}
func ldobj(f *obj.Biobuf, pkg string, length int64, pn string, file string, whence int) {