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83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/* Support for reading /etc/ld.so.cache files written by Linux ldconfig.
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Copyright (C) 2022-2024 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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#include <ldconfig.h>
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#include <assert.h>
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#if defined __loongarch_double_float
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# define _DL_CACHE_DEFAULT_ID (FLAG_LARCH_FLOAT_ABI_DOUBLE | FLAG_ELF_LIBC6)
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#else
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# define _DL_CACHE_DEFAULT_ID (FLAG_LARCH_FLOAT_ABI_SOFT | FLAG_ELF_LIBC6)
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#endif
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#define _dl_cache_check_flags(flags) \
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((flags) == _DL_CACHE_DEFAULT_ID)
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/* If given a path to one of our library directories, adds every library
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directory via add_dir (), otherwise just adds the giver directory. On
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LoongArch, libraries can be found in paths ending in:
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- /lib64
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- /lib64/sf
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so this will add all of those paths. */
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#define add_system_dir(dir) \
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do \
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{ \
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static const char* lib_dirs[] = { \
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"/lib64", \
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"/lib64/sf", \
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NULL, \
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}; \
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const size_t lib_len = sizeof ("/lib") - 1; \
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size_t len = strlen (dir); \
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char path[len + 6]; \
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const char **ptr; \
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\
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memcpy (path, dir, len + 1); \
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\
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for (ptr = lib_dirs; *ptr != NULL; ptr++) \
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{ \
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const char *lib_dir = *ptr; \
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size_t dir_len = strlen (lib_dir); \
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\
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if (len >= dir_len \
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&& !memcmp (path + len - dir_len, lib_dir, dir_len)) \
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{ \
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len -= dir_len - lib_len; \
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path[len] = '\0'; \
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break; \
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} \
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} \
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add_dir (path); \
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if (len >= lib_len \
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&& !memcmp (path + len - lib_len, "/lib", lib_len)) \
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for (ptr = lib_dirs; *ptr != NULL; ptr++) \
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{ \
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const char *lib_dir = *ptr; \
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size_t dir_len = strlen (lib_dir); \
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\
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assert (dir_len >= lib_len); \
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memcpy (path + len, lib_dir + lib_len, \
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dir_len - lib_len + 1); \
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add_dir (path); \
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} \
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} while (0)
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#include_next <dl-cache.h>
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