| /* Copyright (C) 2001, 2003 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> |
| |
| /* Please consult the file sysdeps/unix/sysv/linux/x86-64/sysdep.h for |
| more information about the value -4095 used below. */ |
| |
| /* Usage: long syscall (syscall_number, arg1, arg2, arg3, arg4, arg5, arg6) |
| We need to do some arg shifting, the syscall_number will be in |
| rax. */ |
| |
| |
| .text |
| ENTRY (syscall) |
| movq %rdi, %rax /* Syscall number -> rax. */ |
| movq %rsi, %rdi /* shift arg1 - arg5. */ |
| movq %rdx, %rsi |
| movq %rcx, %rdx |
| movq %r8, %r10 |
| movq %r9, %r8 |
| movq 8(%rsp),%r9 /* arg6 is on the stack. */ |
| syscall /* Do the system call. */ |
| cmpq $-4095, %rax /* Check %rax for error. */ |
| jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */ |
| L(pseudo_end): |
| ret /* Return to caller. */ |
| |
| PSEUDO_END (syscall) |
