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* WebAssembly debug info: make wasmtime happy by not emitting line info end

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sequences for procedures that lack any debug lines emitted previously
This commit is contained in:
Nikolay Nikolov 2024-09-15 11:15:11 +03:00
parent aba44452f3
commit beee98e246
1 changed files with 11 additions and 4 deletions
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15
compiler/dbgdwarf.pas
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@ -3533,6 +3533,7 @@ implementation
nolineinfolevel : Integer; nolineinfolevel : Integer;
prevlabel, prevlabel,
currlabel : tasmlabel; currlabel : tasmlabel;
haslineinfo: Boolean = false;
begin begin
{$ifdef OMFOBJSUPPORT} {$ifdef OMFOBJSUPPORT}
if ds_dwarf_omf_linnum in current_settings.debugswitches then if ds_dwarf_omf_linnum in current_settings.debugswitches then
@ -3625,6 +3626,7 @@ implementation
{ line changed ? } { line changed ? }
if (lastfileinfo.line<>currfileinfo.line) and ((currfileinfo.line<>0) or (nolineinfolevel>0)) then if (lastfileinfo.line<>currfileinfo.line) and ((currfileinfo.line<>0) or (nolineinfolevel>0)) then
begin begin
haslineinfo:=true;
{ set address } { set address }
current_asmdata.getlabel(currlabel, alt_dbgline); current_asmdata.getlabel(currlabel, alt_dbgline);
list.insertbefore(tai_label.create(currlabel), hp); list.insertbefore(tai_label.create(currlabel), hp);
@ -3722,10 +3724,15 @@ implementation
end; end;
{ end sequence } { end sequence }
asmline.concat(tai_const.Create_8bit(DW_LNS_extended_op)); if haslineinfo or
asmline.concat(tai_const.Create_8bit(1)); { WasmTime doesn't like it when we emit an end sequence without any previous lines }
asmline.concat(tai_const.Create_8bit(DW_LNE_end_sequence)); not (target_info.system in systems_wasm) then
asmline.concat(tai_comment.Create(strpnew('###################'))); begin
asmline.concat(tai_const.Create_8bit(DW_LNS_extended_op));
asmline.concat(tai_const.Create_8bit(1));
asmline.concat(tai_const.Create_8bit(DW_LNE_end_sequence));
asmline.concat(tai_comment.Create(strpnew('###################')));
end;
end; end;