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cmd: add DWARF64 support for aix port

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This commit adds support for DWARF 64bits which is needed for AIX
operating system.

It also adds the save of each compilation unit's size which will be
used during XCOFF generation in a following patch.

Updates: #25893

Change-Id: Icdd0a4dd02bc0a9f0df319c351fb1db944610015
Reviewed-on: https://go-review.googlesource.com/c/138729
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Clément Chigot 2018-09-28 16:44:30 +02:00 • committed by Ian Lance Taylor
parent bcc3447be5
commit 75a0b9dbf3
3 changed files with 123 additions and 25 deletions
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11
src/cmd/internal/obj/objfile.go
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@ -459,7 +459,12 @@ func (c dwCtxt) AddAddress(s dwarf.Sym, data interface{}, value int64) {
func (c dwCtxt) AddSectionOffset(s dwarf.Sym, size int, t interface{}, ofs int64) {
panic("should be used only in the linker")
}
func (c dwCtxt) AddDWARFSectionOffset(s dwarf.Sym, size int, t interface{}, ofs int64) {
func (c dwCtxt) AddDWARFAddrSectionOffset(s dwarf.Sym, t interface{}, ofs int64) {
size := 4
if isDwarf64(c.Link) {
size = 8
}
ls := s.(*LSym)
rsym := t.(*LSym)
ls.WriteAddr(c.Link, ls.Size, size, rsym, ofs)
@ -500,6 +505,10 @@ func (c dwCtxt) Logf(format string, args ...interface{}) {
c.Link.Logf(format, args...)
}
func isDwarf64(ctxt *Link) bool {
return ctxt.Headtype == objabi.Haix
}
func (ctxt *Link) dwarfSym(s *LSym) (dwarfInfoSym, dwarfLocSym, dwarfRangesSym, dwarfAbsFnSym, dwarfIsStmtSym *LSym) {
if s.Type != objabi.STEXT {
ctxt.Diag("dwarfSym of non-TEXT %v", s)