| /* vi: set sw=4 ts=4: */ |
| /* |
| * msync() for uClibc |
| * |
| * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| * |
| * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| */ |
| |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| #include <sys/mman.h> |
| |
| #ifdef __NR_msync |
| |
| #ifdef __UCLIBC_HAS_THREADS_NATIVE__ |
| #include <sysdep-cancel.h> |
| #else |
| #define SINGLE_THREAD_P 1 |
| #endif |
| |
| #define __NR___syscall_msync __NR_msync |
| static __always_inline _syscall3(int, __syscall_msync, void *, addr, size_t, length, |
| int, flags) |
| |
| extern __typeof(msync) __libc_msync; |
| int __libc_msync(void * addr, size_t length, int flags) |
| { |
| #ifdef __UCLIBC_HAS_THREADS_NATIVE__ |
| int oldtype, result; |
| #endif |
| |
| if (SINGLE_THREAD_P) |
| return __syscall_msync(addr, length, flags); |
| |
| #ifdef __UCLIBC_HAS_THREADS_NATIVE__ |
| oldtype = LIBC_CANCEL_ASYNC (); |
| result = __syscall_msync(addr, length, flags); |
| LIBC_CANCEL_RESET (oldtype); |
| return result; |
| #endif |
| } |
| weak_alias(__libc_msync,msync) |
| |
| #endif |