mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-04-26 20:43:41 +02:00
988 lines
32 KiB
ObjectPascal
988 lines
32 KiB
ObjectPascal
{
|
|
Copyright (c) 1998-2004 by the Free Pascal team
|
|
|
|
This unit implements generic GNU assembler (v2.8 or later)
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
****************************************************************************
|
|
}
|
|
{ Base unit for writing GNU assembler output.
|
|
}
|
|
unit aggas;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
{$IFDEF USE_SYSUTILS}
|
|
SysUtils,
|
|
{$ELSE USE_SYSUTILS}
|
|
dos,
|
|
{$ENDIF USE_SYSUTILS}
|
|
cclasses,
|
|
globtype,globals,
|
|
aasmbase,aasmtai,aasmcpu,
|
|
assemble;
|
|
|
|
|
|
type
|
|
{# This is a derived class which is used to write
|
|
GAS styled assembler.
|
|
|
|
The WriteInstruction() method must be overriden
|
|
to write a single instruction to the assembler
|
|
file.
|
|
}
|
|
TGNUAssembler=class(texternalassembler)
|
|
protected
|
|
function sectionname(atype:tasmsectiontype;const aname:string):string;virtual;
|
|
procedure WriteSection(atype:tasmsectiontype;const aname:string);
|
|
procedure WriteExtraHeader;virtual;
|
|
procedure WriteInstruction(hp: tai); virtual; abstract;
|
|
public
|
|
procedure WriteTree(p:TAAsmoutput);override;
|
|
procedure WriteAsmList;override;
|
|
private
|
|
setcount: longint;
|
|
procedure WriteDecodedSleb128(a: aint);
|
|
procedure WriteDecodedUleb128(a: aword);
|
|
function NextSetLabel: string;
|
|
end;
|
|
|
|
|
|
implementation
|
|
|
|
uses
|
|
cutils,systems,
|
|
fmodule,finput,verbose,
|
|
itcpugas
|
|
;
|
|
|
|
const
|
|
line_length = 70;
|
|
|
|
var
|
|
CurrSecType : TAsmSectionType; { last section type written }
|
|
lastfileinfo : tfileposinfo;
|
|
infile,
|
|
lastinfile : tinputfile;
|
|
symendcount : longint;
|
|
|
|
type
|
|
{$ifdef cpuextended}
|
|
t80bitarray = array[0..9] of byte;
|
|
{$endif cpuextended}
|
|
t64bitarray = array[0..7] of byte;
|
|
t32bitarray = array[0..3] of byte;
|
|
|
|
{****************************************************************************}
|
|
{ Support routines }
|
|
{****************************************************************************}
|
|
|
|
function fixline(s:string):string;
|
|
{
|
|
return s with all leading and ending spaces and tabs removed
|
|
}
|
|
var
|
|
i,j,k : integer;
|
|
begin
|
|
i:=length(s);
|
|
while (i>0) and (s[i] in [#9,' ']) do
|
|
dec(i);
|
|
j:=1;
|
|
while (j<i) and (s[j] in [#9,' ']) do
|
|
inc(j);
|
|
for k:=j to i do
|
|
if s[k] in [#0..#31,#127..#255] then
|
|
s[k]:='.';
|
|
fixline:=Copy(s,j,i-j+1);
|
|
end;
|
|
|
|
function single2str(d : single) : string;
|
|
var
|
|
hs : string;
|
|
begin
|
|
str(d,hs);
|
|
{ replace space with + }
|
|
if hs[1]=' ' then
|
|
hs[1]:='+';
|
|
single2str:='0d'+hs
|
|
end;
|
|
|
|
function double2str(d : double) : string;
|
|
var
|
|
hs : string;
|
|
begin
|
|
str(d,hs);
|
|
{ replace space with + }
|
|
if hs[1]=' ' then
|
|
hs[1]:='+';
|
|
double2str:='0d'+hs
|
|
end;
|
|
|
|
function extended2str(e : extended) : string;
|
|
var
|
|
hs : string;
|
|
begin
|
|
str(e,hs);
|
|
{ replace space with + }
|
|
if hs[1]=' ' then
|
|
hs[1]:='+';
|
|
extended2str:='0d'+hs
|
|
end;
|
|
|
|
|
|
{ convert floating point values }
|
|
{ to correct endian }
|
|
procedure swap64bitarray(var t: t64bitarray);
|
|
var
|
|
b: byte;
|
|
begin
|
|
b:= t[7];
|
|
t[7] := t[0];
|
|
t[0] := b;
|
|
|
|
b := t[6];
|
|
t[6] := t[1];
|
|
t[1] := b;
|
|
|
|
b:= t[5];
|
|
t[5] := t[2];
|
|
t[2] := b;
|
|
|
|
b:= t[4];
|
|
t[4] := t[3];
|
|
t[3] := b;
|
|
end;
|
|
|
|
|
|
procedure swap32bitarray(var t: t32bitarray);
|
|
var
|
|
b: byte;
|
|
begin
|
|
b:= t[1];
|
|
t[1]:= t[2];
|
|
t[2]:= b;
|
|
|
|
b:= t[0];
|
|
t[0]:= t[3];
|
|
t[3]:= b;
|
|
end;
|
|
|
|
|
|
const
|
|
ait_const2str : array[ait_const_128bit..ait_const_indirect_symbol] of string[20]=(
|
|
#9'.fixme128'#9,#9'.quad'#9,#9'.long'#9,#9'.short'#9,#9'.byte'#9,
|
|
#9'.sleb128'#9,#9'.uleb128'#9,
|
|
#9'.rva'#9,#9'.indirect_symbol'#9
|
|
);
|
|
|
|
{****************************************************************************}
|
|
{ GNU Assembler writer }
|
|
{****************************************************************************}
|
|
|
|
function TGNUAssembler.NextSetLabel: string;
|
|
begin
|
|
inc(setcount);
|
|
result := target_asm.labelprefix+'$set$'+tostr(setcount);
|
|
end;
|
|
|
|
function TGNUAssembler.sectionname(atype:tasmsectiontype;const aname:string):string;
|
|
const
|
|
secnames : array[tasmsectiontype] of string[12] = ('',
|
|
{$warning TODO .rodata not yet working}
|
|
'.text','.data','.data','.bss','.threadvar',
|
|
'common',
|
|
'.note',
|
|
'__TEXT', { stubs }
|
|
'.stab','.stabstr',
|
|
'.idata$2','.idata$4','.idata$5','.idata$6','.idata$7','.edata',
|
|
'.eh_frame',
|
|
'.debug_frame',
|
|
'fpc.resptrs'
|
|
);
|
|
secnames_pic : array[tasmsectiontype] of string[12] = ('',
|
|
'.text','.data.rel','.data.rel','.bss','.threadvar',
|
|
'common',
|
|
'.note',
|
|
'__TEXT', { stubs }
|
|
'.stab','.stabstr',
|
|
'.idata$2','.idata$4','.idata$5','.idata$6','.idata$7','.edata',
|
|
'.eh_frame',
|
|
'.debug_frame',
|
|
'fpc.resptrs'
|
|
);
|
|
var
|
|
secname : string;
|
|
begin
|
|
if (cs_create_pic in aktmoduleswitches) and
|
|
not(target_info.system in [system_powerpc_darwin,system_i386_darwin]) then
|
|
secname:=secnames_pic[atype]
|
|
else
|
|
secname:=secnames[atype];
|
|
|
|
if (atype=sec_threadvar) and
|
|
(target_info.system=system_i386_win32) then
|
|
secname:='.tls';
|
|
|
|
if use_smartlink_section and
|
|
(aname<>'') then
|
|
result:=secname+'.'+aname
|
|
else
|
|
result:=secname;
|
|
end;
|
|
|
|
|
|
procedure TGNUAssembler.WriteSection(atype:tasmsectiontype;const aname:string);
|
|
var
|
|
s : string;
|
|
begin
|
|
AsmLn;
|
|
case target_info.system of
|
|
system_i386_OS2,
|
|
system_i386_EMX : ;
|
|
system_powerpc_darwin :
|
|
begin
|
|
if atype=sec_stub then
|
|
AsmWrite('.section ');
|
|
end;
|
|
else
|
|
AsmWrite('.section ');
|
|
end;
|
|
s:=sectionname(atype,aname);
|
|
AsmWrite(s);
|
|
case atype of
|
|
sec_fpc :
|
|
AsmWrite(', "a", @progbits');
|
|
sec_stub :
|
|
begin
|
|
if target_info.system=system_powerpc_darwin then
|
|
AsmWrite(',__symbol_stub1,symbol_stubs,pure_instructions,16');
|
|
end;
|
|
end;
|
|
AsmLn;
|
|
CurrSecType:=atype;
|
|
end;
|
|
|
|
|
|
procedure TGNUAssembler.WriteDecodedUleb128(a: aword);
|
|
var
|
|
b: byte;
|
|
begin
|
|
repeat
|
|
b := a and $7f;
|
|
a := a shr 7;
|
|
if (a <> 0) then
|
|
b := b or $80;
|
|
AsmWrite(tostr(b));
|
|
if (a <> 0) then
|
|
AsmWrite(',')
|
|
else
|
|
break;
|
|
until false;
|
|
end;
|
|
|
|
|
|
procedure TGNUAssembler.WriteDecodedSleb128(a: aint);
|
|
var
|
|
b, size: byte;
|
|
neg, more: boolean;
|
|
begin
|
|
more := true;
|
|
neg := a < 0;
|
|
size := sizeof(a)*8;
|
|
repeat
|
|
b := a and $7f;
|
|
a := a shr 7;
|
|
if (neg) then
|
|
a := a or -(1 shl (size - 7));
|
|
if (((a = 0) and
|
|
(a and $40 = 0)) or
|
|
((a = -1) and
|
|
(a and $40 <> 0))) then
|
|
more := false
|
|
else
|
|
b := b or $80;
|
|
AsmWrite(tostr(b));
|
|
if (more) then
|
|
AsmWrite(',')
|
|
else
|
|
break;
|
|
until false;
|
|
end;
|
|
|
|
|
|
procedure TGNUAssembler.WriteTree(p:TAAsmoutput);
|
|
|
|
function needsObject(hp : tai_symbol) : boolean;
|
|
begin
|
|
needsObject :=
|
|
(
|
|
assigned(hp.next) and
|
|
(tai_symbol(hp.next).typ in [ait_const_rva_symbol,
|
|
ait_const_32bit,ait_const_16bit,ait_const_8bit,ait_datablock,
|
|
ait_real_32bit,ait_real_64bit,ait_real_80bit,ait_comp_64bit])
|
|
) or
|
|
(hp.sym.typ=AT_DATA);
|
|
|
|
end;
|
|
|
|
var
|
|
ch : char;
|
|
hp : tai;
|
|
hp1 : tailineinfo;
|
|
consttyp : taitype;
|
|
s,t : string;
|
|
i,pos,l : longint;
|
|
InlineLevel : longint;
|
|
last_align : longint;
|
|
co : comp;
|
|
sin : single;
|
|
d : double;
|
|
{$ifdef cpuextended}
|
|
e : extended;
|
|
{$endif cpuextended}
|
|
do_line : boolean;
|
|
|
|
sepChar : char;
|
|
begin
|
|
if not assigned(p) then
|
|
exit;
|
|
|
|
last_align := 2;
|
|
InlineLevel:=0;
|
|
{ lineinfo is only needed for al_procedures (PFV) }
|
|
do_line:=(cs_asm_source in aktglobalswitches) or
|
|
((cs_lineinfo in aktmoduleswitches)
|
|
and (p=asmlist[al_procedures]));
|
|
hp:=tai(p.first);
|
|
while assigned(hp) do
|
|
begin
|
|
if not(hp.typ in SkipLineInfo) then
|
|
begin
|
|
hp1 := hp as tailineinfo;
|
|
aktfilepos:=hp1.fileinfo;
|
|
{ no line info for inlined code }
|
|
if do_line and (inlinelevel=0) then
|
|
begin
|
|
{ load infile }
|
|
if lastfileinfo.fileindex<>hp1.fileinfo.fileindex then
|
|
begin
|
|
infile:=current_module.sourcefiles.get_file(hp1.fileinfo.fileindex);
|
|
if assigned(infile) then
|
|
begin
|
|
{ open only if needed !! }
|
|
if (cs_asm_source in aktglobalswitches) then
|
|
infile.open;
|
|
end;
|
|
{ avoid unnecessary reopens of the same file !! }
|
|
lastfileinfo.fileindex:=hp1.fileinfo.fileindex;
|
|
{ be sure to change line !! }
|
|
lastfileinfo.line:=-1;
|
|
end;
|
|
{ write source }
|
|
if (cs_asm_source in aktglobalswitches) and
|
|
assigned(infile) then
|
|
begin
|
|
if (infile<>lastinfile) then
|
|
begin
|
|
AsmWriteLn(target_asm.comment+'['+infile.name^+']');
|
|
if assigned(lastinfile) then
|
|
lastinfile.close;
|
|
end;
|
|
if (hp1.fileinfo.line<>lastfileinfo.line) and
|
|
((hp1.fileinfo.line<infile.maxlinebuf) or (InlineLevel>0)) then
|
|
begin
|
|
if (hp1.fileinfo.line<>0) and
|
|
((infile.linebuf^[hp1.fileinfo.line]>=0) or (InlineLevel>0)) then
|
|
AsmWriteLn(target_asm.comment+'['+tostr(hp1.fileinfo.line)+'] '+
|
|
fixline(infile.GetLineStr(hp1.fileinfo.line)));
|
|
{ set it to a negative value !
|
|
to make that is has been read already !! PM }
|
|
if (infile.linebuf^[hp1.fileinfo.line]>=0) then
|
|
infile.linebuf^[hp1.fileinfo.line]:=-infile.linebuf^[hp1.fileinfo.line]-1;
|
|
end;
|
|
end;
|
|
lastfileinfo:=hp1.fileinfo;
|
|
lastinfile:=infile;
|
|
end;
|
|
end;
|
|
|
|
case hp.typ of
|
|
|
|
ait_comment :
|
|
Begin
|
|
AsmWrite(target_asm.comment);
|
|
AsmWritePChar(tai_comment(hp).str);
|
|
AsmLn;
|
|
End;
|
|
|
|
ait_regalloc :
|
|
begin
|
|
if (cs_asm_regalloc in aktglobalswitches) then
|
|
begin
|
|
AsmWrite(#9+target_asm.comment+'Register ');
|
|
repeat
|
|
AsmWrite(gas_regname(Tai_regalloc(hp).reg));
|
|
if (hp.next=nil) or
|
|
(tai(hp.next).typ<>ait_regalloc) or
|
|
(tai_regalloc(hp.next).ratype<>tai_regalloc(hp).ratype) then
|
|
break;
|
|
hp:=tai(hp.next);
|
|
AsmWrite(',');
|
|
until false;
|
|
AsmWrite(' ');
|
|
AsmWriteLn(regallocstr[tai_regalloc(hp).ratype]);
|
|
end;
|
|
end;
|
|
|
|
ait_tempalloc :
|
|
begin
|
|
if (cs_asm_tempalloc in aktglobalswitches) then
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
if assigned(tai_tempalloc(hp).problem) then
|
|
AsmWriteLn(target_asm.comment+'Temp '+tostr(tai_tempalloc(hp).temppos)+','+
|
|
tostr(tai_tempalloc(hp).tempsize)+' '+tai_tempalloc(hp).problem^)
|
|
else
|
|
{$endif EXTDEBUG}
|
|
AsmWriteLn(target_asm.comment+'Temp '+tostr(tai_tempalloc(hp).temppos)+','+
|
|
tostr(tai_tempalloc(hp).tempsize)+' '+tempallocstr[tai_tempalloc(hp).allocation]);
|
|
end;
|
|
end;
|
|
|
|
ait_align :
|
|
begin
|
|
if tai_align(hp).aligntype>1 then
|
|
begin
|
|
if target_info.system <> system_powerpc_darwin then
|
|
begin
|
|
AsmWrite(#9'.balign '+tostr(tai_align(hp).aligntype));
|
|
if tai_align(hp).use_op then
|
|
AsmWrite(','+tostr(tai_align(hp).fillop))
|
|
end
|
|
else
|
|
begin
|
|
{ darwin as only supports .align }
|
|
if not ispowerof2(tai_align(hp).aligntype,i) then
|
|
internalerror(2003010305);
|
|
AsmWrite(#9'.align '+tostr(i));
|
|
last_align := i;
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
end;
|
|
|
|
ait_section :
|
|
begin
|
|
if tai_section(hp).sectype<>sec_none then
|
|
WriteSection(tai_section(hp).sectype,tai_section(hp).name^)
|
|
else
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
AsmWrite(target_asm.comment);
|
|
AsmWriteln(' sec_none');
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
end;
|
|
|
|
ait_datablock :
|
|
begin
|
|
if target_info.system=system_powerpc_darwin then
|
|
begin
|
|
{On Mac OS X you can't have common symbols in a shared
|
|
library, since those are in the TEXT section and the text section is
|
|
read-only in shared libraries (so it can be shared among different
|
|
processes). The alternate code creates some kind of common symbols in
|
|
the data segment. The generic code no longer uses common symbols, but
|
|
this doesn't work on Mac OS X as well.}
|
|
if tai_datablock(hp).is_global then
|
|
begin
|
|
asmwrite('.globl ');
|
|
asmwriteln(tai_datablock(hp).sym.name);
|
|
asmwriteln('.data');
|
|
asmwrite('.zerofill __DATA, __common, ');
|
|
asmwrite(tai_datablock(hp).sym.name);
|
|
asmwriteln(', '+tostr(tai_datablock(hp).size)+','+tostr(last_align));
|
|
if not(CurrSecType in [sec_data,sec_none]) then
|
|
writesection(CurrSecType,'');
|
|
end
|
|
else
|
|
begin
|
|
asmwrite(#9'.lcomm'#9);
|
|
asmwrite(tai_datablock(hp).sym.name);
|
|
asmwrite(','+tostr(tai_datablock(hp).size));
|
|
asmwrite(','+tostr(last_align));
|
|
asmwriteln('');
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
if Tai_datablock(hp).is_global then
|
|
begin
|
|
asmwrite(#9'.globl ');
|
|
asmwriteln(Tai_datablock(hp).sym.name);
|
|
end;
|
|
if (tf_needs_symbol_type in target_info.flags) then
|
|
asmwriteln(#9'.type '+Tai_datablock(hp).sym.name+',@object');
|
|
if (tf_needs_symbol_size in target_info.flags) and (tai_datablock(hp).size > 0) then
|
|
asmwriteln(#9'.size '+Tai_datablock(hp).sym.name+','+tostr(Tai_datablock(hp).size));
|
|
asmwrite(Tai_datablock(hp).sym.name);
|
|
asmwriteln(':');
|
|
asmwriteln(#9'.zero '+tostr(Tai_datablock(hp).size));
|
|
end;
|
|
end;
|
|
|
|
{$ifndef cpu64bit}
|
|
ait_const_128bit :
|
|
begin
|
|
internalerror(200404291);
|
|
end;
|
|
|
|
ait_const_64bit :
|
|
begin
|
|
if assigned(tai_const(hp).sym) then
|
|
internalerror(200404292);
|
|
AsmWrite(ait_const2str[ait_const_32bit]);
|
|
if target_info.endian = endian_little then
|
|
begin
|
|
AsmWrite(tostr(longint(lo(tai_const(hp).value))));
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(longint(hi(tai_const(hp).value))));
|
|
end
|
|
else
|
|
begin
|
|
AsmWrite(tostr(longint(hi(tai_const(hp).value))));
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(longint(lo(tai_const(hp).value))));
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
{$endif cpu64bit}
|
|
|
|
ait_const_uleb128bit,
|
|
ait_const_sleb128bit,
|
|
{$ifdef cpu64bit}
|
|
ait_const_128bit,
|
|
ait_const_64bit,
|
|
{$endif cpu64bit}
|
|
ait_const_32bit,
|
|
ait_const_16bit,
|
|
ait_const_8bit,
|
|
ait_const_rva_symbol,
|
|
ait_const_indirect_symbol :
|
|
begin
|
|
if (target_info.system in [system_powerpc_darwin,system_i386_darwin]) and
|
|
(hp.typ in [ait_const_uleb128bit,ait_const_sleb128bit]) then
|
|
begin
|
|
AsmWrite(ait_const2str[ait_const_8bit]);
|
|
case hp.typ of
|
|
ait_const_uleb128bit:
|
|
WriteDecodedUleb128(aword(tai_const(hp).value));
|
|
ait_const_sleb128bit:
|
|
WriteDecodedSleb128(aint(tai_const(hp).value));
|
|
end
|
|
end
|
|
else
|
|
begin
|
|
AsmWrite(ait_const2str[hp.typ]);
|
|
consttyp:=hp.typ;
|
|
l:=0;
|
|
t := '';
|
|
repeat
|
|
if assigned(tai_const(hp).sym) then
|
|
begin
|
|
if assigned(tai_const(hp).endsym) then
|
|
begin
|
|
if (target_info.system in [system_powerpc_darwin,system_i386_darwin]) then
|
|
begin
|
|
s := NextSetLabel;
|
|
t := #9'.set '+s+','+tai_const(hp).endsym.name+'-'+tai_const(hp).sym.name;
|
|
end
|
|
else
|
|
s:=tai_const(hp).endsym.name+'-'+tai_const(hp).sym.name
|
|
end
|
|
else
|
|
s:=tai_const(hp).sym.name;
|
|
if tai_const(hp).value<>0 then
|
|
s:=s+tostr_with_plus(tai_const(hp).value);
|
|
end
|
|
else
|
|
s:=tostr(tai_const(hp).value);
|
|
AsmWrite(s);
|
|
inc(l,length(s));
|
|
{ Values with symbols are written on a single line to improve
|
|
reading of the .s file (PFV) }
|
|
if assigned(tai_const(hp).sym) or
|
|
not(CurrSecType in [sec_data,sec_rodata]) or
|
|
(l>line_length) or
|
|
(hp.next=nil) or
|
|
(tai(hp.next).typ<>consttyp) or
|
|
assigned(tai_const(hp.next).sym) then
|
|
break;
|
|
hp:=tai(hp.next);
|
|
AsmWrite(',');
|
|
until false;
|
|
if (t <> '') then
|
|
begin
|
|
AsmLn;
|
|
AsmWrite(t);
|
|
end;
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
|
|
{$ifdef cpuextended}
|
|
ait_real_80bit :
|
|
begin
|
|
if do_line then
|
|
AsmWriteLn(target_asm.comment+'value: '+extended2str(tai_real_80bit(hp).value));
|
|
{ Make sure e is a extended type, bestreal could be
|
|
a different type (bestreal) !! (PFV) }
|
|
e:=tai_real_80bit(hp).value;
|
|
AsmWrite(#9'.byte'#9);
|
|
for i:=0 to 9 do
|
|
begin
|
|
if i<>0 then
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(t80bitarray(e)[i]));
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
{$endif cpuextended}
|
|
|
|
ait_real_64bit :
|
|
begin
|
|
if do_line then
|
|
AsmWriteLn(target_asm.comment+'value: '+double2str(tai_real_64bit(hp).value));
|
|
d:=tai_real_64bit(hp).value;
|
|
{ swap the values to correct endian if required }
|
|
if source_info.endian <> target_info.endian then
|
|
swap64bitarray(t64bitarray(d));
|
|
AsmWrite(#9'.byte'#9);
|
|
{$ifdef arm}
|
|
{ on a real arm cpu, it's already hi/lo swapped }
|
|
{$ifndef cpuarm}
|
|
if tai_real_64bit(hp).formatoptions=fo_hiloswapped then
|
|
begin
|
|
for i:=4 to 7 do
|
|
begin
|
|
if i<>4 then
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(t64bitarray(d)[i]));
|
|
end;
|
|
for i:=0 to 3 do
|
|
begin
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(t64bitarray(d)[i]));
|
|
end;
|
|
end
|
|
else
|
|
{$endif cpuarm}
|
|
{$endif arm}
|
|
begin
|
|
for i:=0 to 7 do
|
|
begin
|
|
if i<>0 then
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(t64bitarray(d)[i]));
|
|
end;
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
|
|
ait_real_32bit :
|
|
begin
|
|
if do_line then
|
|
AsmWriteLn(target_asm.comment+'value: '+single2str(tai_real_32bit(hp).value));
|
|
sin:=tai_real_32bit(hp).value;
|
|
{ swap the values to correct endian if required }
|
|
if source_info.endian <> target_info.endian then
|
|
swap32bitarray(t32bitarray(sin));
|
|
AsmWrite(#9'.byte'#9);
|
|
for i:=0 to 3 do
|
|
begin
|
|
if i<>0 then
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(t32bitarray(sin)[i]));
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
|
|
ait_comp_64bit :
|
|
begin
|
|
if do_line then
|
|
AsmWriteLn(target_asm.comment+'value: '+extended2str(tai_comp_64bit(hp).value));
|
|
AsmWrite(#9'.byte'#9);
|
|
{$ifdef FPC}
|
|
co:=comp(tai_comp_64bit(hp).value);
|
|
{$else}
|
|
co:=tai_comp_64bit(hp).value;
|
|
{$endif}
|
|
{ swap the values to correct endian if required }
|
|
if source_info.endian <> target_info.endian then
|
|
swap64bitarray(t64bitarray(co));
|
|
for i:=0 to 7 do
|
|
begin
|
|
if i<>0 then
|
|
AsmWrite(',');
|
|
AsmWrite(tostr(t64bitarray(co)[i]));
|
|
end;
|
|
AsmLn;
|
|
end;
|
|
|
|
ait_string :
|
|
begin
|
|
pos:=0;
|
|
for i:=1 to tai_string(hp).len do
|
|
begin
|
|
if pos=0 then
|
|
begin
|
|
AsmWrite(#9'.ascii'#9'"');
|
|
pos:=20;
|
|
end;
|
|
ch:=tai_string(hp).str[i-1];
|
|
case ch of
|
|
#0, {This can't be done by range, because a bug in FPC}
|
|
#1..#31,
|
|
#128..#255 : s:='\'+tostr(ord(ch) shr 6)+tostr((ord(ch) and 63) shr 3)+tostr(ord(ch) and 7);
|
|
'"' : s:='\"';
|
|
'\' : s:='\\';
|
|
else
|
|
s:=ch;
|
|
end;
|
|
AsmWrite(s);
|
|
inc(pos,length(s));
|
|
if (pos>line_length) or (i=tai_string(hp).len) then
|
|
begin
|
|
AsmWriteLn('"');
|
|
pos:=0;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
ait_label :
|
|
begin
|
|
if (tai_label(hp).l.is_used) then
|
|
begin
|
|
if tai_label(hp).l.defbind=AB_GLOBAL then
|
|
begin
|
|
AsmWrite('.globl'#9);
|
|
AsmWriteLn(tai_label(hp).l.name);
|
|
end;
|
|
AsmWrite(tai_label(hp).l.name);
|
|
AsmWriteLn(':');
|
|
end;
|
|
end;
|
|
ait_symbol :
|
|
begin
|
|
if tai_symbol(hp).is_global then
|
|
begin
|
|
AsmWrite('.globl'#9);
|
|
AsmWriteLn(tai_symbol(hp).sym.name);
|
|
end;
|
|
if (target_info.system = system_powerpc64_linux) and
|
|
(tai_symbol(hp).sym.typ = AT_FUNCTION) then
|
|
begin
|
|
AsmWriteLn('.section "opd", "aw"');
|
|
AsmWriteLn('.align 3');
|
|
AsmWriteLn(tai_symbol(hp).sym.name + ':');
|
|
AsmWriteLn('.quad .' + tai_symbol(hp).sym.name + ', .TOC.@tocbase, 0');
|
|
AsmWriteLn('.previous');
|
|
AsmWriteLn('.size ' + tai_symbol(hp).sym.name + ', 24');
|
|
AsmWriteLn('.globl .' + tai_symbol(hp).sym.name);
|
|
AsmWriteLn('.type .' + tai_symbol(hp).sym.name + ', @function');
|
|
{ the dotted name is the name of the actual function }
|
|
AsmWrite('.');
|
|
end
|
|
else
|
|
begin
|
|
if (target_info.system <> system_arm_linux) then
|
|
begin
|
|
sepChar := '@';
|
|
end
|
|
else
|
|
begin
|
|
sepChar := '#';
|
|
end;
|
|
|
|
if (tf_needs_symbol_type in target_info.flags) then
|
|
begin
|
|
AsmWrite(#9'.type'#9 + tai_symbol(hp).sym.name);
|
|
if (needsObject(tai_symbol(hp))) then
|
|
begin
|
|
AsmWriteLn(',' + sepChar + 'object');
|
|
end
|
|
else
|
|
begin
|
|
AsmWriteLn(',' + sepChar + 'function');
|
|
end;
|
|
end;
|
|
if (tf_needs_symbol_size in target_info.flags) and (tai_symbol(hp).sym.size > 0) then begin
|
|
AsmWriteLn(#9'.size'#9 + tai_symbol(hp).sym.name + ', ' + tostr(tai_symbol(hp).sym.size));
|
|
end;
|
|
end;
|
|
AsmWriteLn(tai_symbol(hp).sym.name + ':');
|
|
end;
|
|
|
|
ait_symbol_end :
|
|
begin
|
|
if tf_needs_symbol_size in target_info.flags then
|
|
begin
|
|
s:=target_asm.labelprefix+'e'+tostr(symendcount);
|
|
inc(symendcount);
|
|
AsmWriteLn(s+':');
|
|
AsmWrite(#9'.size'#9);
|
|
if (target_info.system = system_powerpc64_linux) and (tai_symbol_end(hp).sym.typ = AT_FUNCTION) then
|
|
begin
|
|
AsmWrite('.');
|
|
end;
|
|
AsmWrite(tai_symbol_end(hp).sym.name);
|
|
AsmWrite(', '+s+' - ');
|
|
if (target_info.system = system_powerpc64_linux) and (tai_symbol_end(hp).sym.typ = AT_FUNCTION) then
|
|
begin
|
|
AsmWrite('.');
|
|
end;
|
|
AsmWriteLn(tai_symbol_end(hp).sym.name);
|
|
end;
|
|
end;
|
|
|
|
ait_instruction :
|
|
begin
|
|
WriteInstruction(hp);
|
|
end;
|
|
|
|
ait_stab :
|
|
begin
|
|
if assigned(tai_stab(hp).str) then
|
|
begin
|
|
AsmWrite(#9'.'+stabtypestr[tai_stab(hp).stabtype]+' ');
|
|
AsmWritePChar(tai_stab(hp).str);
|
|
AsmLn;
|
|
end;
|
|
end;
|
|
|
|
ait_force_line,
|
|
ait_function_name : ;
|
|
|
|
ait_cutobject :
|
|
begin
|
|
if SmartAsm then
|
|
begin
|
|
{ only reset buffer if nothing has changed }
|
|
if AsmSize=AsmStartSize then
|
|
AsmClear
|
|
else
|
|
begin
|
|
AsmClose;
|
|
DoAssemble;
|
|
AsmCreate(tai_cutobject(hp).place);
|
|
end;
|
|
{ avoid empty files }
|
|
while assigned(hp.next) and (tai(hp.next).typ in [ait_cutobject,ait_section,ait_comment]) do
|
|
begin
|
|
if tai(hp.next).typ=ait_section then
|
|
CurrSecType:=tai_section(hp.next).sectype;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
if CurrSecType<>sec_none then
|
|
WriteSection(CurrSecType,'');
|
|
AsmStartSize:=AsmSize;
|
|
end;
|
|
end;
|
|
|
|
ait_marker :
|
|
if tai_marker(hp).kind=InlineStart then
|
|
inc(InlineLevel)
|
|
else if tai_marker(hp).kind=InlineEnd then
|
|
dec(InlineLevel);
|
|
|
|
ait_directive :
|
|
begin
|
|
AsmWrite('.'+directivestr[tai_directive(hp).directive]+' ');
|
|
if assigned(tai_directive(hp).name) then
|
|
AsmWrite(tai_directive(hp).name^);
|
|
AsmLn;
|
|
end;
|
|
|
|
else
|
|
internalerror(10000);
|
|
end;
|
|
hp:=tai(hp.next);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure TGNUAssembler.WriteExtraHeader;
|
|
|
|
begin
|
|
end;
|
|
|
|
procedure TGNUAssembler.WriteAsmList;
|
|
var
|
|
p:dirstr;
|
|
n:namestr;
|
|
e:extstr;
|
|
hal : tasmlist;
|
|
begin
|
|
{$ifdef EXTDEBUG}
|
|
if assigned(current_module.mainsource) then
|
|
Comment(V_Debug,'Start writing gas-styled assembler output for '+current_module.mainsource^);
|
|
{$endif}
|
|
|
|
CurrSecType:=sec_none;
|
|
FillChar(lastfileinfo,sizeof(lastfileinfo),0);
|
|
LastInfile:=nil;
|
|
|
|
if assigned(current_module.mainsource) then
|
|
{$IFDEF USE_SYSUTILS}
|
|
begin
|
|
p := SplitPath(current_module.mainsource^);
|
|
n := SplitName(current_module.mainsource^);
|
|
e := SplitExtension(current_module.mainsource^);
|
|
end
|
|
{$ELSE USE_SYSUTILS}
|
|
fsplit(current_module.mainsource^,p,n,e)
|
|
{$ENDIF USE_SYSUTILS}
|
|
else
|
|
begin
|
|
p:=inputdir;
|
|
n:=inputfile;
|
|
e:=inputextension;
|
|
end;
|
|
{ to get symify to work }
|
|
AsmWriteLn(#9'.file "'+FixFileName(n+e)+'"');
|
|
WriteExtraHeader;
|
|
AsmStartSize:=AsmSize;
|
|
symendcount:=0;
|
|
|
|
for hal:=low(Tasmlist) to high(Tasmlist) do
|
|
begin
|
|
AsmWriteLn(target_asm.comment+'Begin asmlist '+TasmlistStr[hal]);
|
|
writetree(asmlist[hal]);
|
|
AsmWriteLn(target_asm.comment+'End asmlist '+TasmlistStr[hal]);
|
|
end;
|
|
|
|
AsmLn;
|
|
{$ifdef EXTDEBUG}
|
|
if assigned(current_module.mainsource) then
|
|
Comment(V_Debug,'Done writing gas-styled assembler output for '+current_module.mainsource^);
|
|
{$endif EXTDEBUG}
|
|
end;
|
|
|
|
end.
|