[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / aarch64 / dl-cache.h

/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
   Copyright (C) 2003-2021 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
   <https://www.gnu.org/licenses/>.  */

#include <ldconfig.h>

#ifdef __LP64__
# define _DL_CACHE_DEFAULT_ID    (FLAG_AARCH64_LIB64 | FLAG_ELF_LIBC6)
#else
# define _DL_CACHE_DEFAULT_ID    (FLAG_AARCH64_LIB32 | FLAG_ELF_LIBC6)
#endif

#define _dl_cache_check_flags(flags)                    \
  ((flags) == _DL_CACHE_DEFAULT_ID)

#define add_system_dir(dir) \
  do								\
    {								\
      size_t len = strlen (dir);				\
      char path[len + 6];					\
      memcpy (path, dir, len + 1);				\
      if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6))	\
	{							\
	  len -= 2;						\
	  path[len] = '\0';					\
	}							\
      if (len >= 9 && ! memcmp (path + len - 9, "/libilp32", 9))\
	{							\
	  len -= 5;						\
	  path[len] = '\0';					\
	}							\
      add_dir (path);						\
      if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4))	\
	{							\
	  memcpy (path + len, "64", 3);				\
	  add_dir (path);					\
	  memcpy (path + len, "ilp32", 6);			\
	  add_dir (path);					\
	}							\
    } while (0)

#include_next <dl-cache.h>
Commit	Line	Data
8d953369	1	/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
2b778ceb	2	Copyright (C) 2003-2021 Free Software Foundation, Inc.
8d953369 MS	3	This file is part of the GNU C Library.
	4
	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	The GNU C Library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with the GNU C Library. If not, see
5a82c748	17	<https://www.gnu.org/licenses/>. */
8d953369 MS	18
	19	#include <ldconfig.h>
	20
389d1f1b SE	21	#ifdef __LP64__
	22	# define _DL_CACHE_DEFAULT_ID (FLAG_AARCH64_LIB64 \| FLAG_ELF_LIBC6)
	23	#else
	24	# define _DL_CACHE_DEFAULT_ID (FLAG_AARCH64_LIB32 \| FLAG_ELF_LIBC6)
	25	#endif
8d953369 MS	26
	27	#define _dl_cache_check_flags(flags) \
	28	((flags) == _DL_CACHE_DEFAULT_ID)
	29
	30	#define add_system_dir(dir) \
	31	do \
	32	{ \
	33	size_t len = strlen (dir); \
389d1f1b	34	char path[len + 6]; \
8d953369 MS	35	memcpy (path, dir, len + 1); \
	36	if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6)) \
	37	{ \
	38	len -= 2; \
	39	path[len] = '\0'; \
	40	} \
389d1f1b SE	41	if (len >= 9 && ! memcmp (path + len - 9, "/libilp32", 9))\
	42	{ \
	43	len -= 5; \
	44	path[len] = '\0'; \
	45	} \
8d953369 MS	46	add_dir (path); \
	47	if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4)) \
	48	{ \
	49	memcpy (path + len, "64", 3); \
	50	add_dir (path); \
389d1f1b SE	51	memcpy (path + len, "ilp32", 6); \
389d1f1b SE	52	add_dir (path); \
8d953369 MS	53	} \
	54	} while (0)
	55
	56	#include_next <dl-cache.h>