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* fix for Mantis #35566 by applying patch by Martin Friebe: correctly dereference the 32-bit length value for Windows Widestrings

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git-svn-id: trunk@42087 -
This commit is contained in:
svenbarth 2019-05-16 20:56:18 +00:00
parent fb2a8e23d0
commit 755e271b4e
1 changed files with 10 additions and 4 deletions
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14
compiler/dbgdwarf.pas
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@ -4272,7 +4272,7 @@ implementation
if not (is_widestring(def) and (tf_winlikewidestring in target_info.flags)) then
upperopcodes:=13
else
upperopcodes:=15;
upperopcodes:=16;
{ lower bound is always 1, upper bound (length) needs to be calculated }
append_entry(DW_TAG_subrange_type,false,[
DW_AT_lower_bound,DW_FORM_udata,1,
@ -4291,16 +4291,22 @@ implementation
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_skip)));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_16bit_unaligned(3));
{ no -> load length }
if upperopcodes=15 then
if upperopcodes=16 then
{ for Windows WideString the size is always a DWORD }
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_lit4)))
else
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_lit0)+sizesinttype.size));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_minus)));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
if upperopcodes=16 then
begin
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref_size)));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(4));
end
else
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_deref)));
{ for widestrings, the length is specified in bytes, so divide by two }
if (upperopcodes=15) then
if (upperopcodes=16) then
begin
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_lit1)));
current_asmdata.asmlists[al_dwarf_info].concat(tai_const.create_8bit(ord(DW_OP_shr)));