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-rw-r--r--libc/sysdeps/linux/i386/Makefile.arch4
-rw-r--r--libc/sysdeps/linux/i386/sync_file_range.S67
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)
+