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cmd/link: print failed external command invocation

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When the invocation of the external linker, dsymutil or strip
command fails, print the command we invoked.

For #65292.

Change-Id: Icdb5f9ee942ebda4276f6373c3fbbf5222088d0b
Reviewed-on: https://go-review.googlesource.com/c/go/+/558856
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
This commit is contained in:
Cherry Mui 2024-01-26 12:08:00 -05:00
parent 8081c08449
commit a428387e97
1 changed files with 7 additions and 5 deletions
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12
src/cmd/link/internal/ld/lib.go
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@ -1874,9 +1874,10 @@ func (ctxt *Link) hostlink() {
ctxt.Logf("\n")
}
out, err := exec.Command(argv[0], argv[1:]...).CombinedOutput()
cmd := exec.Command(argv[0], argv[1:]...)
out, err := cmd.CombinedOutput()
if err != nil {
Exitf("running %s failed: %v\n%s", argv[0], err, out)
Exitf("running %s failed: %v\n%s\n%s", argv[0], err, cmd, out)
}
// Filter out useless linker warnings caused by bugs outside Go.
@ -1959,7 +1960,7 @@ func (ctxt *Link) hostlink() {
ctxt.Logf("\n")
}
if out, err := cmd.CombinedOutput(); err != nil {
Exitf("%s: running dsymutil failed: %v\n%s", os.Args[0], err, out)
Exitf("%s: running dsymutil failed: %v\n%s\n%s", os.Args[0], err, cmd, out)
}
// Remove STAB (symbolic debugging) symbols after we are done with them (by dsymutil).
// They contain temporary file paths and make the build not reproducible.
@ -1978,8 +1979,9 @@ func (ctxt *Link) hostlink() {
}
ctxt.Logf("\n")
}
if out, err := exec.Command(stripCmd, stripArgs...).CombinedOutput(); err != nil {
Exitf("%s: running strip failed: %v\n%s", os.Args[0], err, out)
cmd = exec.Command(stripCmd, stripArgs...)
if out, err := cmd.CombinedOutput(); err != nil {
Exitf("%s: running strip failed: %v\n%s\n%s", os.Args[0], err, cmd, out)
}
// Skip combining if `dsymutil` didn't generate a file. See #11994.
if _, err := os.Stat(dsym); os.IsNotExist(err) {