diff options
Diffstat (limited to 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/i386/Makefile.arch | 4 | ||||
| -rw-r--r-- | libc/sysdeps/linux/i386/sync_file_range.S | 67 |
2 files changed, 69 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/i386/Makefile.arch b/libc/sysdeps/linux/i386/Makefile.arch index abd267445..ea2fce0d3 100644 --- a/libc/sysdeps/linux/i386/Makefile.arch +++ b/libc/sysdeps/linux/i386/Makefile.arch @@ -8,7 +8,7 @@ CSRC := brk.c sigaction.c __syscall_error.c SSRC := \ - __longjmp.S vfork.S clone.S setjmp.S bsd-setjmp.S \ - bsd-_setjmp.S syscall.S mmap.S mmap64.S + __longjmp.S vfork.S clone.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \ + sync_file_range.S syscall.S mmap.S mmap64.S include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch diff --git a/libc/sysdeps/linux/i386/sync_file_range.S b/libc/sysdeps/linux/i386/sync_file_range.S new file mode 100644 index 000000000..6cdaf452a --- /dev/null +++ b/libc/sysdeps/linux/i386/sync_file_range.S @@ -0,0 +1,67 @@ +/* Copyright (C) 2006, 2007 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. */ + +#define _ERRNO_H 1 +#include <features.h> +#include <bits/errno.h> +#include <sys/syscall.h> + +.text +.global sync_file_range +.type sync_file_range,%function +sync_file_range: +#ifdef __NR_sync_file_range + + /* Save regs */ + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + + movl $__NR_sync_file_range, %eax /* Syscall number in %eax. */ + + movl 20(%esp), %ebx + movl 24(%esp), %ecx + movl 28(%esp), %edx + movl 32(%esp), %esi + movl 36(%esp), %edi + movl 40(%esp), %ebp + + /* Do the system call trap. */ + int $0x80 + + /* Restore regs */ + popl %ebp + popl %edi + popl %esi + popl %ebx + + /* If 0 > %eax > -4096 there was an error. */ + cmpl $-4096, %eax + ja __syscall_error +#else + movl $-ENOSYS, %eax + jmp __syscall_error +#endif + /* Successful; return the syscall's value. */ + ret + +.size sync_file_range,.-sync_file_range + +libc_hidden_def(sync_file_range) + |