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authorCarmelo Amoroso <carmelo.amoroso@st.com>2008-09-18 15:06:24 +0000
committerCarmelo Amoroso <carmelo.amoroso@st.com>2008-09-18 15:06:24 +0000
commit4c12e5c94a45e791b788caa0c2acfd7abe2f7b15 (patch)
treef6aed83e39a7d295b26df19f058ddbd5449e68bf /libc/sysdeps/linux/common/posix_fadvise.c
parent7a0eea11b481aa96c93a90000ff35d6bbce8b00b (diff)
downloaduClibc-alpine-4c12e5c94a45e791b788caa0c2acfd7abe2f7b15.tar.bz2
uClibc-alpine-4c12e5c94a45e791b788caa0c2acfd7abe2f7b15.tar.xz
Fix posix_fadvise[64] functions to return the error number in case
of failure instead of -1 and setting errno, according to SuSv3 (IEEE Std 1003.1 2004 edition) specification. Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Diffstat (limited to 'libc/sysdeps/linux/common/posix_fadvise.c')
-rw-r--r--libc/sysdeps/linux/common/posix_fadvise.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/posix_fadvise.c b/libc/sysdeps/linux/common/posix_fadvise.c
index 45734f9b2..95aa4d27b 100644
--- a/libc/sysdeps/linux/common/posix_fadvise.c
+++ b/libc/sysdeps/linux/common/posix_fadvise.c
@@ -33,8 +33,18 @@ int posix_fadvise(int fd, off_t offset, off_t len, int advice)
return 0;
}
#else
-_syscall4(int, posix_fadvise, int, fd, off_t, offset,
- off_t, len, int, advice);
+static __inline__ int syscall_posix_fadvise(int fd, off_t offset1, off_t offset2, off_t len, int advice);
+#define __NR_syscall_posix_fadvise __NR_fadvise64
+_syscall5(int, syscall_posix_fadvise, int, fd, off_t, offset1,
+ off_t, offset2, off_t, len, int, advice);
+
+int posix_fadvise(int fd, off_t offset, off_t len, int advice)
+{
+ int ret = syscall_posix_fadvise(fd, __LONG_LONG_PAIR (offset >> 31, offset), len, advice);
+ if (ret == -1)
+ return errno;
+ return ret;
+}
#endif