[PATCH v3 40/48] stat: Use fstatat64 if arch does not have the stat syscall
Markos Chandras
markos.chandras at gmail.com
Wed Jan 23 11:42:04 UTC 2013
From: Markos Chandras <markos.chandras at imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras at imgtec.com>
---
include/sys/stat.h | 1 +
libc/sysdeps/linux/common/fstatat.c | 1 +
libc/sysdeps/linux/common/stat.c | 17 ++++++++++++++---
3 files changed, 16 insertions(+), 3 deletions(-)
diff --git a/include/sys/stat.h b/include/sys/stat.h
index f3a52ad..495a68c 100644
--- a/include/sys/stat.h
+++ b/include/sys/stat.h
@@ -241,6 +241,7 @@ libc_hidden_proto(fstat64)
extern int fstatat (int __fd, const char *__restrict __file,
struct stat *__restrict __buf, int __flag)
__THROW __nonnull ((2, 3));
+libc_hidden_proto(fstatat)
# else
# ifdef __REDIRECT_NTH
extern int __REDIRECT_NTH (fstatat, (int __fd, const char *__restrict __file,
diff --git a/libc/sysdeps/linux/common/fstatat.c b/libc/sysdeps/linux/common/fstatat.c
index 2fde220..51c2922 100644
--- a/libc/sysdeps/linux/common/fstatat.c
+++ b/libc/sysdeps/linux/common/fstatat.c
@@ -38,6 +38,7 @@ int fstatat(int fd, const char *file, struct stat *buf, int flag)
#endif /* __ARCH_HAS_DEPRECATED_SYSCALLS__ */
return ret;
}
+libc_hidden_def(fstatat)
#else
/* should add emulation with fstat() and /proc/self/fd/ ... */
#endif
diff --git a/libc/sysdeps/linux/common/stat.c b/libc/sysdeps/linux/common/stat.c
index 829f35a..41cb363 100644
--- a/libc/sysdeps/linux/common/stat.c
+++ b/libc/sysdeps/linux/common/stat.c
@@ -8,12 +8,21 @@
*/
#include <sys/syscall.h>
+#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include "xstatconv.h"
#undef stat
+#if defined(__NR_fstatat64) && !defined(__NR_stat)
+int stat(const char *file_name, struct stat *buf)
+{
+ return fstatat(AT_FDCWD, file_name, buf, 0);
+}
+
+#else
+
int stat(const char *file_name, struct stat *buf)
{
int result;
@@ -35,12 +44,14 @@ int stat(const char *file_name, struct stat *buf)
if (result == 0) {
__xstat_conv(&kbuf, buf);
}
-#endif
+#endif /* __NR_stat64 */
return result;
}
+#endif /* __NR_fstat64 */
libc_hidden_def(stat)
-#if ! defined __NR_stat64 && defined __UCLIBC_HAS_LFS__
+#if ! defined __NR_stat64 && ! defined __NR_fstatat64 && \
+ defined __UCLIBC_HAS_LFS__
strong_alias_untyped(stat,stat64)
libc_hidden_def(stat64)
-#endif
+#endif /* __UCLIBC_HAS_LFS__ */
--
1.8.1.1
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