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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2018-03-01 09:04:41 -0300 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2018-04-20 13:57:12 -0300 |
commit | c0123b3b1118419210879e935620eb2ad987c2f1 (patch) | |
tree | dd8d6ead4be0d0f492b5e8e10996595097463bf9 /sysdeps/unix/sysv/linux/i386/scandir64.c | |
parent | 458b94f63e6fc5af1582a98007a1e4769f785fb7 (diff) | |
download | glibc-c0123b3b1118419210879e935620eb2ad987c2f1.tar.gz |
Consolidate scandir{at}{64} implementation
This patch consolidates scandir{at}{64} implementation on just
the default dirent/scandir{at}{64}{_r}.c ones. It changes the logic
to follow the conventions used on other code consolidation:
* scandir{at} is only built for _DIRENT_MATCHES_DIRENT64 being 0.
* scandir{at}{64} is always built and aliased to getdents for ABIs
that define _DIRENT_MATCHES_DIRENT64 to 1.
Also on Linux the compat symbol for old non-LFS dirent64 definition
requires a platform-specific scandir64.c.
Checked on aarch64-linux-gnu, x86_64-linux-gnu, i686-linux-gnu,
sparcv9-linux-gnu, sparc64-linux-gnu, powerpc-linux-gnu, and
powerpc64le-linux-gnu.
* dirent/scandir-tail-common.c: New file.
* dirent/scandir-tail.c: Use scandir-tail-common.c.
(__scandir_tail): Build iff _DIRENT_MATCHES_DIRENT64 is not defined.
* dirent/scandir.c: Use scandir-tail-common.c.
* dirent/scandirat.c: Likewise.
* dirent/scandir64-tail.c: Use scandir-tail-common.c.
* dirent/scandir64.c (scandir64): Always build and alias to scandir
if _DIRENT_MATCHES_DIRENT64 is defined.
* dirent/scandirat64.c (scandirat64): Likewise.
* include/dirent.h (__scandir_tail): Only define iff
_DIRENT_MATCHES_DIRENT64 is not defined.
(__scandir64_tail): Define regardless.
(__scandirat, scandirat64): Remove libc_hidden_proto.
* sysdeps/unix/sysv/linux/arm/scandir64.c: Remove file.
* sysdeps/unix/sysv/linux/m68k/scandir64.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/scandir64.c: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/scandir64.c: Likewise.
* sysdeps/unix/sysv/linux/i386/scandir64.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/scandir64.c: Likewise.
* sysdeps/unix/sysv/linux/scandir64.c: New file.
Diffstat (limited to 'sysdeps/unix/sysv/linux/i386/scandir64.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/i386/scandir64.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/scandir64.c b/sysdeps/unix/sysv/linux/i386/scandir64.c deleted file mode 100644 index 50590c3f74..0000000000 --- a/sysdeps/unix/sysv/linux/i386/scandir64.c +++ /dev/null @@ -1,136 +0,0 @@ -/* Copyright (C) 2000-2018 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <dirent.h> - -#define SCANDIR __scandir64 -#define SCANDIR_TAIL __scandir64_tail -#define DIRENT_TYPE struct dirent64 - -#include <dirent/scandir.c> - -#undef SCANDIR -#undef SCANDIR_TAIL -#undef DIRENT_TYPE - -#include <shlib-compat.h> - -versioned_symbol (libc, __scandir64, scandir64, GLIBC_2_2); - -#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_2) -# include <string.h> -# include <errno.h> -# include "olddirent.h" - -int -__old_scandir64 (const char *dir, struct __old_dirent64 ***namelist, - int (*select) (const struct __old_dirent64 *), - int (*cmp) (const struct __old_dirent64 **, - const struct __old_dirent64 **)) -{ - DIR *dp = __opendir (dir); - struct __old_dirent64 **v = NULL; - size_t vsize = 0; - struct scandir_cancel_struct c; - struct __old_dirent64 *d; - int save; - - if (dp == NULL) - return -1; - - save = errno; - __set_errno (0); - - c.dp = dp; - c.v = NULL; - c.cnt = 0; - __libc_cleanup_push (__scandir_cancel_handler, &c); - - while ((d = __old_readdir64 (dp)) != NULL) - { - int use_it = select == NULL; - - if (! use_it) - { - use_it = select (d); - /* The select function might have changed errno. It was - zero before and it need to be again to make the latter - tests work. */ - __set_errno (0); - } - - if (use_it) - { - struct __old_dirent64 *vnew; - size_t dsize; - - /* Ignore errors from select or readdir */ - __set_errno (0); - - if (__glibc_unlikely (c.cnt == vsize)) - { - struct __old_dirent64 **new; - if (vsize == 0) - vsize = 10; - else - vsize *= 2; - new = (struct __old_dirent64 **) realloc (v, - vsize * sizeof (*v)); - if (new == NULL) - break; - v = new; - c.v = (void *) v; - } - - dsize = &d->d_name[_D_ALLOC_NAMLEN (d)] - (char *) d; - vnew = (struct __old_dirent64 *) malloc (dsize); - if (vnew == NULL) - break; - - v[c.cnt++] = (struct __old_dirent64 *) memcpy (vnew, d, dsize); - } - } - - if (__builtin_expect (errno, 0) != 0) - { - save = errno; - - while (c.cnt > 0) - free (v[--c.cnt]); - free (v); - c.cnt = -1; - } - else - { - /* Sort the list if we have a comparison function to sort with. */ - if (cmp != NULL) - qsort (v, c.cnt, sizeof (*v), - (int (*) (const void *, const void *)) cmp); - - *namelist = v; - } - - __libc_cleanup_pop (0); - - (void) __closedir (dp); - __set_errno (save); - - return c.cnt; -} -compat_symbol (libc, __old_scandir64, scandir64, GLIBC_2_1); - -#endif |