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cmd/6l, cmd/internal/ld: handle R_PCREL to function in other shared library

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An ELF linker handles a PC-relative reference to an STT_FUNC defined in a
shared library by building a PLT entry and referring to that, so do the
same in 6l.

Fixes #10690

Change-Id: I061a96fd4400d957e301d0ac86760ce256910e1d
Reviewed-on: https://go-review.googlesource.com/9711
Run-TryBot: Michael Hudson-Doyle <michael.hudson@canonical.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Michael Hudson-Doyle 2015-05-05 16:10:12 +12:00 • committed by Ian Lance Taylor
parent c661cb01f7
commit 9f5d0bff41
4 changed files with 31 additions and 21 deletions
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1
src/cmd/internal/ld/lib.go
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@ -1197,6 +1197,7 @@ func ldshlibsyms(shlib string) {
s.Name, shlib, lsym.File)
}
lsym.Type = obj.SDYNIMPORT
lsym.ElfType = elf.ST_TYPE(s.Info)
lsym.File = libpath
if strings.HasPrefix(lsym.Name, "type.") {
data := make([]byte, s.Size)