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authorPeter S. Mazinger <ps.m@gmx.net>2011-04-06 15:36:54 +0200
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2012-06-15 14:00:35 +0200
commit9e74047542cbe90bd63660638ceb30313327027f (patch)
treefe918ecaf613ce9e660e8c971ff5dabf25a9b39f /libc/sysdeps/linux/common/posix_fadvise64.c
parentdd340d59c5bcca991047c9ef26147e5e5cbb659b (diff)
posix_fadvise: make posix_fadvise[64] similar on all archs
Remove all versions, that can be covered by the common one. Drop incorrectly implemented fallback support, if __NR_fadvise64_64 is not available. To support 64 bit ppc, move ppc support into common. Cleanup including headers. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/common/posix_fadvise64.c')
-rw-r--r--libc/sysdeps/linux/common/posix_fadvise64.c64
1 files changed, 21 insertions, 43 deletions
diff --git a/libc/sysdeps/linux/common/posix_fadvise64.c b/libc/sysdeps/linux/common/posix_fadvise64.c
index fa9ff219f..de813ba15 100644
--- a/libc/sysdeps/linux/common/posix_fadvise64.c
+++ b/libc/sysdeps/linux/common/posix_fadvise64.c
@@ -8,55 +8,33 @@
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
-#include <features.h>
-#include <unistd.h>
-#include <errno.h>
-#include <endian.h>
-#include <stdint.h>
-#include <sys/types.h>
+#include <_lfs_64.h>
#include <sys/syscall.h>
-#include <fcntl.h>
+#include <bits/wordsize.h>
-#ifdef __UCLIBC_HAS_LFS__
-#ifdef __NR_fadvise64_64
-
-/* 64 bit implementation is cake ... or more like pie ... */
-#if __WORDSIZE == 64
-
-#define __NR_posix_fadvise64 __NR_fadvise64_64
-
-int posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advice)
-{
- if (len != (off_t) len)
- return EOVERFLOW;
- INTERNAL_SYSCALL_DECL (err);
- int ret = INTERNAL_SYSCALL (posix_fadvise64, err, 5, fd,
- __LONG_LONG_PAIR ((long) (offset >> 32),
- (long) offset),
- (off_t) len, advice);
- if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
- return 0;
- return INTERNAL_SYSCALL_ERRNO (ret, err);
-}
+#ifdef __NR_arm_fadvise64_64
+# define __NR_fadvise64_64 __NR_arm_fadvise64_64
+#endif
-/* 32 bit implementation is kind of a pita */
-#elif __WORDSIZE == 32
+#if defined __NR_fadvise64_64 && defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 32
+# include <fcntl.h>
+# include <endian.h>
-int posix_fadvise64(int fd, __off64_t offset, __off64_t len, int advice)
+int posix_fadvise64(int fd, off64_t offset, off64_t len, int advice)
{
INTERNAL_SYSCALL_DECL (err);
+# if defined __powerpc__ || defined __arm__ || defined __xtensa__
+ int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd, advice,
+ __LONG_LONG_PAIR((long)(offset >> 32), (long)offset),
+ __LONG_LONG_PAIR((long)(len >> 32), (long)len));
+# else
int ret = INTERNAL_SYSCALL (fadvise64_64, err, 6, fd,
- __LONG_LONG_PAIR(offset >> 32, offset & 0xffffffff),
- __LONG_LONG_PAIR(len >> 32, len & 0xffffffff),
- advice);
- if (!INTERNAL_SYSCALL_ERROR_P (ret, err))
- return 0;
- return INTERNAL_SYSCALL_ERRNO (ret, err);
+ __LONG_LONG_PAIR((long)(offset >> 32), (long)offset),
+ __LONG_LONG_PAIR((long)(len >> 32), (long)len),
+ advice);
+# endif
+ if (INTERNAL_SYSCALL_ERROR_P (ret, err))
+ return INTERNAL_SYSCALL_ERRNO (ret, err);
+ return 0;
}
-
-#else
-#error your machine is neither 32 bit or 64 bit ... it must be magical
#endif
-
-#endif /* __NR_fadvise64_64 */
-#endif /* __UCLIBC_HAS_LFS__ */