From: Alessandro Arzilli Date: Tue, 10 Nov 2020 16:02:27 +0000 (+0100) Subject: cmd/compile: do not emit an extra debug_line entry for the end of seq addr X-Git-Tag: go1.16beta1~246 X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=9ef65ff137;p=gostls13.git cmd/compile: do not emit an extra debug_line entry for the end of seq addr Uses DW_LNS_advance_pc directly, instead of calling putpclcdelta because the latter will create a new debug_line entry for the end of sequence address. Fixes #42484 Change-Id: Ib6355605cac101b9bf37a3b4961ab0cee678a839 Reviewed-on: https://go-review.googlesource.com/c/go/+/268937 Trust: Than McIntosh Run-TryBot: Than McIntosh TryBot-Result: Go Bot Reviewed-by: Than McIntosh Reviewed-by: Cherry Zhang --- diff --git a/src/cmd/internal/obj/dwarf.go b/src/cmd/internal/obj/dwarf.go index 328fb03b24..87c62e2981 100644 --- a/src/cmd/internal/obj/dwarf.go +++ b/src/cmd/internal/obj/dwarf.go @@ -104,7 +104,8 @@ func (ctxt *Link) generateDebugLinesSymbol(s, lines *LSym) { // GDB will assign a line number of zero the last row in the line // table, which we don't want. lastlen := uint64(s.Size - (lastpc - s.Func().Text.Pc)) - putpclcdelta(ctxt, dctxt, lines, lastlen, 0) + dctxt.AddUint8(lines, dwarf.DW_LNS_advance_pc) + dwarf.Uleb128put(dctxt, lines, int64(lastlen)) dctxt.AddUint8(lines, 0) // start extended opcode dwarf.Uleb128put(dctxt, lines, 1) dctxt.AddUint8(lines, dwarf.DW_LNE_end_sequence)