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cmd/compile,cmd/link: export int global consts to DWARF

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Updates #14517

Change-Id: I23ef88e71c89da12dffcadf5562ea2d7557b62cf
Reviewed-on: https://go-review.googlesource.com/61019
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
This commit is contained in:
Alessandro Arzilli 2017-09-03 11:59:18 +02:00 • committed by Austin Clements
parent f366379d84
commit 9daee93121
6 changed files with 173 additions and 29 deletions
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13
src/cmd/internal/obj/objfile.go
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@ -499,3 +499,16 @@ func (ctxt *Link) populateDWARF(curfn interface{}, s *LSym) {
ctxt.Diag("emitting DWARF for %s failed: %v", s.Name, err)
}
}
// DwarfIntConst creates a link symbol for an integer constant with the
// given name, type and value.
func (ctxt *Link) DwarfIntConst(myimportpath, name, typename string, val int64) {
if myimportpath == "" {
return
}
s := ctxt.LookupInit(dwarf.ConstInfoPrefix+myimportpath, func(s *LSym) {
s.Type = objabi.SDWARFINFO
ctxt.Data = append(ctxt.Data, s)
})
dwarf.PutIntConst(dwCtxt{ctxt}, s, ctxt.Lookup(dwarf.InfoPrefix+typename), myimportpath+"."+name, val)
}