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/* GRT stack implementation for x86.
Copyright (C) 2002 - 2014 Tristan Gingold.
GHDL 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, or (at your option) any later
version.
GHDL 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 GCC; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
As a special exception, if other files instantiate generics from this
unit, or you link this unit with other files to produce an executable,
this unit does not by itself cause the resulting executable to be
covered by the GNU General Public License. This exception does not
however invalidate any other reasons why the executable file might be
covered by the GNU Public License.
*/
.file "chkstk.S"
.text
#ifdef __APPLE__
#define __chkstk ___chkstk
#endif
/* Function called to loop on the process. */
.align 4
#ifdef __ELF__
.type __chkstk,@function
#endif
.globl __chkstk
__chkstk:
testl %eax,%eax
je 0f
subl $4,%eax /* 4 bytes already used by call. */
subl %eax,%esp
jmp *(%esp,%eax)
0:
ret
#ifdef __ELF__
.size __chkstk, . - __chkstk
#endif
.ident "Written by T.Gingold"
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