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* Initial version. Needs check for OpenBSD.

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marco 2002-08-04 05:31:15 +00:00
parent 6088d82362
commit a575fe278a
1 changed files with 188 additions and 0 deletions
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188
rtl/bsd/i386/syscall.inc Normal file
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{
$Id$
Copyright (c) 2002 by Marco van de Voort
Syscall functions for i386 *BSD.
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.
****************************************************************************
These functions are the same over all three BSDs, except that some have a
32-bit Errno, and some a 16-bit}
{$ifdef NetBSD}
{$UNDEF ErrnoWord}
{$endif}
{$ifdef FreeBSD}
{$DEFINE ErrnoWord}
{$endif}
procedure actualsyscall; assembler; {inline requires a dummy push IIRC}
asm
int $0x80
jb .LErrorcode
xor %ebx,%ebx
ret
.LErrorcode:
mov %eax,%ebx
mov $-1,%eax
end;
function Do_SysCall(sysnr:LONGINT):longint; assembler;
asm
movl sysnr,%eax
call actualsyscall
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1:longint):longint; assembler;
asm
movl sysnr,%eax
pushl Param1
call actualsyscall
addl $4,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1:integer):longint; assembler;
asm
movl sysnr,%eax
pushw Param1
call actualsyscall
add $2,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1,param2:LONGINT):longint; assembler;
asm
movl sysnr,%eax
pushl param2
pushl Param1
call actualsyscall
addl $8,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1,param2,param3:LONGINT):longint; assembler;
asm
movl sysnr,%eax
pushl param3
pushl param2
pushl Param1
call actualsyscall
addl $12,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1,param2,param3,param4:LONGINT):longint; assembler;
asm
movl sysnr,%eax
pushl param4
pushl param3
pushl param2
pushl Param1
call actualsyscall
addl $16,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1,param2,param3,param4,param5:LONGINT):longint; assembler;
asm
movl sysnr,%eax
pushl param5
pushl param4
pushl param3
pushl param2
pushl Param1
call actualsyscall
addl $20,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1,param2,param3,param4,param5,param6:LONGINT):longint; assembler;
asm
movl sysnr,%eax
pushl param6
pushl param5
pushl param4
pushl param3
pushl param2
pushl Param1
call actualsyscall
addl $24,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;
function Do_SysCall(sysnr,param1,param2,param3,param4,param5,param6,param7:LONGINT):longint; assembler;
asm
movl sysnr,%eax
pushl param7
pushl param6
pushl param5
pushl param4
pushl param3
pushl param2
pushl Param1
call actualsyscall
addl $28,%esp
{$ifdef ErrnoWord}
movw %bx,Errno
{$else}
movl %ebx,Errno
{$endif}
end;