[glibc.git] / sysdeps / unix / sysv / sysv4 / linux / i386 / syscall.S

/* Copyright (C) 1995 Free Software Foundation, Inc.
This file is part of the GNU C Library.

The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.

The GNU C Library 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
Library General Public License for more details.

You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB.  If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA.  */

#include <sysdep.h>

ASM_GLOBAL_DIRECTIVE syscall_error
ENTRY (syscall)
	popl %ecx		/* Pop return address into %ecx.  */
	popl %eax		/* Pop syscall number into %eax.  */
	pushl %ecx		/* Push back return address.  */
	DO_CALL (5)		/* Frob the args and do the system call.  */
	testl %eax, %eax	/* Check %eax for error.  */
	jl JUMPTARGET(syscall_error) /* Jump to error handler if negative.  */
	ret			/* Return to caller.  */
Commit	Line	Data
439d1d45	1	/* Copyright (C) 1995 Free Software Foundation, Inc.
28f540f4 RM	2	This file is part of the GNU C Library.
	3
	4	The GNU C Library is free software; you can redistribute it and/or
	5	modify it under the terms of the GNU Library General Public License as
	6	published by the Free Software Foundation; either version 2 of the
	7	License, or (at your option) any later version.
	8
	9	The GNU C Library is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	Library General Public License for more details.
	13
	14	You should have received a copy of the GNU Library General Public
	15	License along with the GNU C Library; see the file COPYING.LIB. If
	16	not, write to the Free Software Foundation, Inc., 675 Mass Ave,
	17	Cambridge, MA 02139, USA. */
	18
	19	#include <sysdep.h>
	20
439d1d45 RM	21	ASM_GLOBAL_DIRECTIVE syscall_error
	22	ENTRY (syscall)
	23	popl %ecx /* Pop return address into %ecx. */
	24	popl %eax /* Pop syscall number into %eax. */
	25	pushl %ecx /* Push back return address. */
	26	DO_CALL (5) /* Frob the args and do the system call. */
	27	testl %eax, %eax /* Check %eax for error. */
	28	jl JUMPTARGET(syscall_error) /* Jump to error handler if negative. */
	29	ret /* Return to caller. */