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| author | Ulrich Drepper <drepper@gmail.com> | 2011-04-01 11:33:14 -0400 |
|---|---|---|
| committer | Ulrich Drepper <drepper@gmail.com> | 2011-04-01 11:33:14 -0400 |
| commit | 3167dad07cf528e7464320c160a61eba0df747c8 (patch) | |
| tree | c6b025ddbf01e371cccf055fe6d0391dfd05c2d2 /sysdeps/unix/sysv/linux/i386/call_sync_file_range.S | |
| parent | 748876bf1c45cd10f998f8578c434156eae53b7e (diff) | |
| download | glibc-3167dad07cf528e7464320c160a61eba0df747c8.tar.gz glibc-3167dad07cf528e7464320c160a61eba0df747c8.tar.xz glibc-3167dad07cf528e7464320c160a61eba0df747c8.zip | |
Also make x86 sync_file_range a cancellation point.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/call_sync_file_range.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/i386/call_sync_file_range.S | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/call_sync_file_range.S b/sysdeps/unix/sysv/linux/i386/call_sync_file_range.S new file mode 100644 index 0000000000..fb0ab492cb --- /dev/null +++ b/sysdeps/unix/sysv/linux/i386/call_sync_file_range.S @@ -0,0 +1,72 @@ +/* Selective file content synch'ing. + Copyright (C) 2006, 2007, 2011 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> +#define _ERRNO_H 1 +#include <bits/errno.h> + + + .text +ENTRY (__call_sync_file_range) +#ifdef __NR_sync_file_range + pushl %ebx + cfi_adjust_cfa_offset (4) + pushl %esi + cfi_adjust_cfa_offset (4) + pushl %edi + cfi_adjust_cfa_offset (4) + pushl %ebp + cfi_adjust_cfa_offset (4) + + movl 20(%esp), %ebx + cfi_rel_offset (ebx, 12) + movl 24(%esp), %ecx + movl 28(%esp), %edx + movl 32(%esp), %esi + cfi_rel_offset (esi, 8) + movl 36(%esp), %edi + cfi_rel_offset (edi, 4) + movl 40(%esp), %ebp + cfi_rel_offset (ebp, 0) + + movl $SYS_ify(sync_file_range), %eax + ENTER_KERNEL + + popl %ebp + cfi_adjust_cfa_offset (-4) + cfi_restore (ebp) + popl %edi + cfi_adjust_cfa_offset (-4) + cfi_restore (edi) + popl %esi + cfi_adjust_cfa_offset (-4) + cfi_restore (esi) + popl %ebx + cfi_adjust_cfa_offset (-4) + cfi_restore (ebx) + + cmpl $-4095, %eax + jae SYSCALL_ERROR_LABEL +#else + movl $-ENOSYS, %eax + jmp SYSCALL_ERROR_LABEL +#endif +L(pseudo_end): + ret +PSEUDO_END (__call_sync_file_range) |