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cmd/internal/objfile: don't require runtime.symtab symbol for XCOFF

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For some reason (that I didn't look into), externally linked
AIX binaries don't have runtime.symtab symbol. Since recent Go
releases (Go 1.3 maybe?), that symbol is empty and not necessary
anyway. Don't require it.

Fixes #40972.

Change-Id: I73a1f0142195ea6debdba8a4f6e12cadc3980dc5
Reviewed-on: https://go-review.googlesource.com/c/go/+/279995
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
This commit is contained in:
Cherry Zhang 2020-12-23 17:33:18 -05:00
parent 59bfc18e34
commit c3b4c7093a
2 changed files with 1 additions and 8 deletions
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4
src/cmd/internal/objfile/xcoff.go
View file

@ -94,9 +94,7 @@ func (f *xcoffFile) pcln() (textStart uint64, symtab, pclntab []byte, err error)
if pclntab, err = loadXCOFFTable(f.xcoff, "runtime.pclntab", "runtime.epclntab"); err != nil {
return 0, nil, nil, err
}
if symtab, err = loadXCOFFTable(f.xcoff, "runtime.symtab", "runtime.esymtab"); err != nil {
return 0, nil, nil, err
}
symtab, _ = loadXCOFFTable(f.xcoff, "runtime.symtab", "runtime.esymtab") // ignore error, this symbol is not useful anyway
return textStart, symtab, pclntab, nil
}

5
src/cmd/objdump/objdump_test.go
View file

@ -237,9 +237,6 @@ func testGoAndCgoDisasm(t *testing.T, printCode bool, printGnuAsm bool) {
t.Parallel()
testDisasm(t, "fmthello.go", printCode, printGnuAsm)
if build.Default.CgoEnabled {
if runtime.GOOS == "aix" {
return // issue 40972
}
testDisasm(t, "fmthellocgo.go", printCode, printGnuAsm)
}
}
@ -261,8 +258,6 @@ func TestDisasmExtld(t *testing.T) {
switch runtime.GOOS {
case "plan9", "windows":
t.Skipf("skipping on %s", runtime.GOOS)
case "aix":
t.Skipf("skipping on AIX, see issue 40972")
}
t.Parallel()
testDisasm(t, "fmthello.go", false, false, "-ldflags=-linkmode=external")