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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 <thanm@google.com> Run-TryBot: Than McIntosh <thanm@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com>
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@ -104,7 +104,8 @@ func (ctxt *Link) generateDebugLinesSymbol(s, lines *LSym) {
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// GDB will assign a line number of zero the last row in the line
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// table, which we don't want.
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lastlen := uint64(s.Size - (lastpc - s.Func().Text.Pc))
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putpclcdelta(ctxt, dctxt, lines, lastlen, 0)
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dctxt.AddUint8(lines, dwarf.DW_LNS_advance_pc)
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dwarf.Uleb128put(dctxt, lines, int64(lastlen))
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dctxt.AddUint8(lines, 0) // start extended opcode
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dwarf.Uleb128put(dctxt, lines, 1)
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dctxt.AddUint8(lines, dwarf.DW_LNE_end_sequence)
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