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cmd/go, cmd/link: build c-archive as position independent on ELF

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This permits people to use -buildmode=c-archive to produce an archive
file that can be included in a PIE or shared library.

Change-Id: Ie340ee2f08bcff4f6fd1415f7d96d51ee3a7c9a1
Reviewed-on: https://go-review.googlesource.com/24180
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Crawshaw <crawshaw@golang.org>
This commit is contained in:
Ian Lance Taylor 2016-06-16 12:59:09 -07:00
parent dc9755c2a2
commit d92a3606f5
6 changed files with 101 additions and 9 deletions
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4
src/cmd/link/internal/ld/lib.go
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@ -163,7 +163,7 @@ func DynlinkingGo() bool {
// relro.
func UseRelro() bool {
switch Buildmode {
case BuildmodeCShared, BuildmodeShared, BuildmodePIE:
case BuildmodeCArchive, BuildmodeCShared, BuildmodeShared, BuildmodePIE:
return Iself
default:
return *FlagLinkshared
@ -1642,7 +1642,7 @@ func stkcheck(ctxt *Link, up *Chain, depth int) int {
// onlyctxt.Diagnose the direct caller.
// TODO(mwhudson): actually think about this.
if depth == 1 && s.Type != obj.SXREF && !DynlinkingGo() &&
Buildmode != BuildmodePIE && Buildmode != BuildmodeCShared {
Buildmode != BuildmodeCArchive && Buildmode != BuildmodePIE && Buildmode != BuildmodeCShared {
ctxt.Diag("call to external function %s", s.Name)
}
return -1