diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/lxstat.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/lxstat.c | 64 |
1 files changed, 33 insertions, 31 deletions
diff --git a/sysdeps/unix/sysv/linux/lxstat.c b/sysdeps/unix/sysv/linux/lxstat.c index dcd685873d..2c7a0b3f6d 100644 --- a/sysdeps/unix/sysv/linux/lxstat.c +++ b/sysdeps/unix/sysv/linux/lxstat.c @@ -1,4 +1,4 @@ -/* lxstat using old-style Unix lstat system call. +/* lxstat using old-style Unix stat system call. Copyright (C) 1991-2020 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -16,45 +16,47 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -/* Ho hum, if xstat == xstat64 we must get rid of the prototype or gcc - will complain since they don't strictly match. */ -#define __lxstat64 __lxstat64_disable - -#include <errno.h> -#include <stddef.h> #include <sys/stat.h> +#include <fcntl.h> #include <kernel_stat.h> - #include <sysdep.h> -#include <sys/syscall.h> -#include <xstatconv.h> +#if !XSTAT_IS_XSTAT64 +# include <xstatconv.h> +# include <xstatover.h> /* Get information about the file NAME in BUF. */ int __lxstat (int vers, const char *name, struct stat *buf) { - if (vers == _STAT_VER_KERNEL) - return INLINE_SYSCALL (lstat, 2, name, buf); - -#if STAT_IS_KERNEL_STAT - return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); -#else - struct kernel_stat kbuf; - int result; - - result = INLINE_SYSCALL (lstat, 2, name, &kbuf); - if (result == 0) - result = __xstat_conv (vers, &kbuf, buf); - - return result; + switch (vers) + { + case _STAT_VER_KERNEL: + { +# if STAT_IS_KERNEL_STAT + /* New kABIs which uses generic pre 64-bit time Linux ABI, + e.g. csky, nios2 */ + int r = INLINE_SYSCALL_CALL (fstatat64, AT_FDCWD, name, buf, + AT_SYMLINK_NOFOLLOW); + return r ?: stat_overflow (buf); +# else + /* Old kABIs with old non-LFS support, e.g. arm, i386, hppa, m68k, + microblaze, s390, sh, powerpc, and sparc. */ + return INLINE_SYSCALL_CALL (lstat, name, buf); +# endif + } + + default: + { +# if STAT_IS_KERNEL_STAT + return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); +# else + struct stat64 buf64; + int r = INLINE_SYSCALL_CALL (lstat64, name, &buf64); + return r ?: __xstat32_conv (vers, &buf64, buf); #endif + } + } } - hidden_def (__lxstat) -weak_alias (__lxstat, _lxstat); -#if XSTAT_IS_XSTAT64 -#undef __lxstat64 -strong_alias (__lxstat, __lxstat64); -hidden_ver (__lxstat, __lxstat64) -#endif +#endif /* XSTAT_IS_XSTAT64 */ |