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https://sourceware.org/git/glibc.git
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22edf4d4b2
This reverts commit 20b39d5946 to move
{f}xstat{at} back to default symbols. ABIs with default symbol version
of 2.33 or newer (such as riscv32) continue to just provide the stat
symbols.
The idea is to not force static libraries built against old glibc
to update against new glibcs (since they reference the old
{f}xstat{at} symbols).
Checked on x86_64-linux-gnu and i686-linux-gnu.
99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/* lxstat64 using Linux lstat64 system call.
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Copyright (C) 1991-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#define __lxstat __redirect___lxstat
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#include <sys/stat.h>
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#undef __lxstat
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#include <fcntl.h>
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#include <kernel_stat.h>
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#include <sysdep.h>
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#include <xstatconv.h>
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#include <statx_cp.h>
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#include <shlib-compat.h>
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#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_33)
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/* Get information about the file NAME in BUF. */
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int
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___lxstat64 (int vers, const char *name, struct stat64 *buf)
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{
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#if XSTAT_IS_XSTAT64
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# ifdef __NR_lstat64
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/* 64-bit kABI outlier, e.g. sparc64. */
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if (vers == _STAT_VER_KERNEL)
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return INLINE_SYSCALL_CALL (lstat, name, buf);
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else
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{
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struct stat64 st64;
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int r = INLINE_SYSCALL_CALL (lstat64, name, &st64);
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return r ?: __xstat32_conv (vers, &st64, (struct stat *) buf);
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}
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# elif defined __NR_lstat
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/* Old 64-bit kABI, e.g. ia64, powerpc64*, s390x, and x86_64. */
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if (vers == _STAT_VER_KERNEL || vers == _STAT_VER_LINUX)
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return INLINE_SYSCALL_CALL (lstat, name, buf);
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# elif defined __NR_newfstatat
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/* New kABIs which uses generic 64-bit Linux ABI, e.g. aarch64, riscv64. */
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if (vers == _STAT_VER_KERNEL)
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return INLINE_SYSCALL_CALL (newfstatat, AT_FDCWD, name, buf,
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AT_SYMLINK_NOFOLLOW);
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# else
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/* New 32-bit kABIs with only 64-bit time_t support, e.g. arc, riscv32. */
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if (vers == _STAT_VER_KERNEL)
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{
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struct statx tmp;
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int r = INLINE_SYSCALL_CALL (statx, AT_FDCWD, name,
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AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW,
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STATX_BASIC_STATS, &tmp);
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if (r == 0)
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__cp_stat64_statx (buf, &tmp);
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return r;
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}
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# endif
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#else
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# if STAT_IS_KERNEL_STAT
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/* New kABIs which uses generic pre 64-bit time Linux ABI,
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e.g. csky, nios2 */
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if (vers == _STAT_VER_KERNEL)
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return INLINE_SYSCALL_CALL (fstatat64, AT_FDCWD, name, buf,
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AT_SYMLINK_NOFOLLOW);
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# else
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/* Old kABIs with old non-LFS support, e.g. arm, i386, hppa, m68k,
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microblaze, s390, sh, mips32, powerpc32, and sparc32. */
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return INLINE_SYSCALL_CALL (lstat64, name, buf);
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# endif /* STAT_IS_KERNEL_STAT */
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#endif /* XSTAT_IS_XSTAT64 */
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return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
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}
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#if SHLIB_COMPAT(libc, GLIBC_2_1, GLIBC_2_2)
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versioned_symbol (libc, ___lxstat64, __lxstat64, GLIBC_2_2);
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strong_alias (___lxstat64, __old__lxstat64)
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compat_symbol (libc, __old__lxstat64, __lxstat64, GLIBC_2_1);
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#else
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strong_alias (___lxstat64, __lxstat64);
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#endif
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#if XSTAT_IS_XSTAT64
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strong_alias (___lxstat64,__lxstat)
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#endif
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#endif /* SHLIB_COMPAT */
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