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* i386-*bsd: cleaned out handwritten assembler threadvar access from syscall code.

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git-svn-id: trunk@27679 -
This commit is contained in:
sergei 2014-04-28 06:21:54 +00:00
parent e8b9d9bf41
commit 7e4b98e735
1 changed files with 2 additions and 43 deletions
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45
rtl/bsd/i386/syscall.inc
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@ -25,55 +25,14 @@ These functions are the same over all three BSDs, except that some have a
{$ifdef FPC_USE_SYSCALL}
{$ifdef NetBSD}
{$UNDEF ErrnoWord}
{$endif}
{$ifdef FreeBSD}
{$DEFINE ErrnoWord}
{$endif}
{ This variable is needed in syscall.inc assembler code }
var
fpc_threadvar_relocate_proc : TRelocateThreadVarHandler; public name 'FPC_THREADVAR_RELOCATE';
{$define THREADVAR_RELOCATED_ALREADY_DEFINED}
Procedure fpc_geteipasebx;[external name 'fpc_geteipasebx'];
procedure actualsyscall; assembler; {inline requires a dummy push IIRC}
asm
int $0x80
jb .LErrorcode
ret
.LErrorcode:
{$ifdef FPC_PIC}
call fpc_geteipasebx
addl $_GLOBAL_OFFSET_TABLE_,%ebx
movl fpc_threadvar_relocate_proc@GOT(%ebx),%ecx
movl (%ecx),%ecx
movl Errno@GOT(%ebx),%edi
{$else FPC_PIC}
leal Errno,%edi
movl fpc_threadvar_relocate_proc,%ecx
{$endif FPC_PIC}
testl %ecx,%ecx
jne .LThread
{$ifdef ErrnoWord}
movw %ax,4(%edi)
{$else}
movl %eax,4(%edi)
{$endif}
jmp .LNoThread
.LThread:
movl %eax,%ebx
movl (%edi),%eax
call *%ecx
{$ifdef ErrnoWord}
movw %bx,4(%eax)
{$else}
movl %ebx,4(%eax)
{$endif}
.LNoThread:
movl $-1,%eax
call SetErrno
movl $-1,%eax
end;
function FpSysCall(sysnr:TSysParam):TSysResult; oldfpccall; assembler; [public,alias:'FPC_DOSYS0'];