diff options
Diffstat (limited to 'sysdeps/unix/sysv/solaris2/kopensolaris-gnu/i386/syscall.S')
| -rw-r--r-- | sysdeps/unix/sysv/solaris2/kopensolaris-gnu/i386/syscall.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/i386/syscall.S b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/i386/syscall.S new file mode 100644 index 0000000000..3228730758 --- /dev/null +++ b/sysdeps/unix/sysv/solaris2/kopensolaris-gnu/i386/syscall.S @@ -0,0 +1,51 @@ +/* Copyright (C) 1993, 1995-1998, 2002, 2008 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> + + .text; +ENTRY (__syscall) + popl %ecx /* Pop return address into %ecx. */ + popl %eax /* Pop syscall number into %eax. */ + pushl %ecx /* Push back return adderss. */ + int $0x91 /* Do the system call. */ + pushl %ecx /* Push back return address. */ + jb SYSCALL_ERROR_LABEL; /* Jump to error handler if error. */ + +L(pseudo_end): + ret /* Return to caller. */ +PSEUDO_END (__syscall) +weak_alias (__syscall, syscall) + + .text; +ENTRY (__systemcall) + popl %edx /* Pop return address into %edx. */ + popl %ecx /* Pop sysret_t into %ecx. */ + popl %eax /* Pop syscall number into %eax. */ + pushl %edx /* Push return address onto stack. */ + int $0x91 /* Do the system call. */ + pushl %ecx /* Restore sysret_t on stack. */ + movl 4(%esp), %edx /* Save return address into %edx. */ + pushl %edx /* Restore return address on stack. */ + jb 1f /* Jump to error handler if error. */ + movl %eax, 0(%ecx) /* Set first 4 bytes of sysret_t. */ + movl %edx, 4(%ecx) /* Set second 4 bytes of sysret_t. */ + xorl %eax, %eax /* Set return to 0. */ +1: + ret +PSEUDO_END (__syscall) |