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+ dwarf support for tls threadvars

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git-svn-id: trunk@43134 -
This commit is contained in:
florian 2019-10-05 20:48:31 +00:00
parent df4ec9e8e3
commit 8ecdb2e9ca
8 changed files with 75 additions and 12 deletions
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4
compiler/aasmtai.pas
View File

@ -151,6 +151,8 @@ interface
aitconst_got,
{ offset of symbol itself from GOT }
aitconst_gotoff_symbol,
{ offset in TLS block }
aitconst_dtpoff,
{ ARM TLS code }
aitconst_gottpoff,
aitconst_tpoff,
@ -2108,6 +2110,8 @@ implementation
result:=4;
aitconst_tlsdesc:
result:=4;
aitconst_dtpoff:
result:=4;
else
internalerror(200603253);
end;

15
compiler/aggas.pas
View File

@ -1010,6 +1010,21 @@ implementation
writer.Asmln;
end;
{$endif cpu64bitaddr}
aitconst_dtpoff:
begin
{$ifdef arm}
writer.AsmWrite(#9'.word'#9+tai_const(hp).sym.name+'(tlsldo)');
writer.Asmln;
{$endif arm}
{$ifdef x86_64}
writer.AsmWrite(#9'.long'#9+tai_const(hp).sym.name+'@dtpoff');
writer.Asmln;
{$endif x86_64}
{$ifdef i386}
writer.AsmWrite(#9'.word'#9+tai_const(hp).sym.name+'@tdpoff');
writer.Asmln;
{$endif i386}
end;
aitconst_got:
begin
if tai_const(hp).symofs<>0 then

2
compiler/arm/cpuelf.pas
View File

@ -350,6 +350,8 @@ implementation
result:=R_ARM_TLS_CALL;
RELOC_ARM_CALL:
result:=R_ARM_CALL;
RELOC_DTPOFF:
result:=R_ARM_TLS_LDO32;
else
InternalError(2012110602);
end;

3
compiler/assemble.pas
View File

@ -2080,6 +2080,9 @@ Implementation
ObjData.writereloc(Tai_const(hp).value,sizeof(longint),Objdata.SymbolRef(tai_const(hp).sym),RELOC_TLSDESC);
end;
{$endif arm}
aitconst_dtpoff:
{ so far, the size of dtpoff is fixed to 4 bytes }
ObjData.writereloc(Tai_const(hp).symofs,4,Objdata.SymbolRef(tai_const(hp).sym),RELOC_DTPOFF);
aitconst_gotoff_symbol:
ObjData.writereloc(Tai_const(hp).symofs,sizeof(longint),Objdata.SymbolRef(tai_const(hp).sym),RELOC_GOTOFF);
aitconst_uleb128bit,

34
compiler/dbgdwarf.pas
View File

@ -2653,15 +2653,43 @@ implementation
case sym.typ of
staticvarsym:
begin
if (vo_is_thread_var in sym.varoptions) then
if vo_is_thread_var in sym.varoptions then
begin
{ TODO: !!! FIXME: dwarf for thread vars !!!}
{ This is only a minimal change to at least be able to get a value
if tf_section_threadvars in target_info.flags then
begin
case sizeof(puint) of
2:
templist.concat(tai_const.create_8bit(ord(DW_OP_const2u)));
4:
templist.concat(tai_const.create_8bit(ord(DW_OP_const4u)));
8:
templist.concat(tai_const.create_8bit(ord(DW_OP_const8u)));
else
Internalerror(2019100501);
end;
{$push}
{$warn 6018 off} { Unreachable code due to compile time evaluation }
templist.concat(tai_const.Create_type_name(aitconst_dtpoff,sym.mangledname,0));
{ so far, aitconst_dtpoff is solely 32 bit }
if (sizeof(puint)=8) and (target_info.endian=endian_little) then
templist.concat(tai_const.create_32bit(0));
templist.concat(tai_const.create_8bit(ord(DW_OP_GNU_push_tls_address)));
if (sizeof(puint)=8) and (target_info.endian=endian_big) then
templist.concat(tai_const.create_32bit(0));
{$pop}
blocksize:=2+sizeof(puint);
end
else
begin
{ TODO: !!! FIXME: dwarf for thread vars !!!}
{ This is only a minimal change to at least be able to get a value
in only one thread is present PM 2014-11-21, like for stabs format }
templist.concat(tai_const.create_8bit(ord(DW_OP_addr)));
templist.concat(tai_const.Create_type_name(aitconst_ptr_unaligned,sym.mangledname,
offset+sizeof(pint)));
blocksize:=1+sizeof(puint);
end;
end
else
begin

2
compiler/i386/cpuelf.pas
View File

@ -119,6 +119,8 @@ implementation
InternalError(2019092101);
RELOC_TLSGD:
result:=R_386_TLS_GD;
RELOC_DTPOFF:
result:=R_386_TLS_DTPOFF32;
else
result:=0;
InternalError(2012082301);

4
compiler/ogbase.pas
View File

@ -115,7 +115,9 @@ interface
{ Relative to GOT/gp }
RELOC_GOTOFF,
{ Untranslated target-specific value }
RELOC_RAW
RELOC_RAW,
{ offset in TLS block }
RELOC_DTPOFF
);
{$if defined(x86_64)}

7
compiler/x86_64/cpuelf.pas
View File

@ -180,6 +180,13 @@ implementation
InternalError(2019091701);
RELOC_TLSGD:
result:=R_X86_64_TLSGD;
RELOC_DTPOFF:
if objrel.size=8 then
result:=R_X86_64_DTPOFF64
else if objrel.size=4 then
result:=R_X86_64_DTPOFF32
else
InternalError(2019091701);
else
result:=0;
InternalError(2012082302);