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efbbd9c33a
Store ISA level in the portion of the unused upper 32 bits of the hwcaps field in cache and the unused pad field in aux cache. ISA level is stored and checked only for shared objects in glibc-hwcaps subdirectories. The shared objects in the default directories aren't checked since there are no fallbacks for these shared objects. Tested on x86-64-v2, x86-64-v3 and x86-64-v4 machines with --disable-hardcoded-path-in-tests and --enable-hardcoded-path-in-tests.
126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
/* Copyright (C) 1999-2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Jaeger <aj@suse.de>, 1999.
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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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#ifndef _LDCONFIG_H
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#define _LDCONFIG_H
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#include <stddef.h>
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#include <stdint.h>
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#include <sys/stat.h>
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#define FLAG_ANY -1
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#define FLAG_TYPE_MASK 0x00ff
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#define FLAG_LIBC4 0x0000
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#define FLAG_ELF 0x0001
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#define FLAG_ELF_LIBC5 0x0002
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#define FLAG_ELF_LIBC6 0x0003
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#define FLAG_REQUIRED_MASK 0xff00
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#define FLAG_SPARC_LIB64 0x0100
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#define FLAG_IA64_LIB64 0x0200
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#define FLAG_X8664_LIB64 0x0300
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#define FLAG_S390_LIB64 0x0400
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#define FLAG_POWERPC_LIB64 0x0500
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#define FLAG_MIPS64_LIBN32 0x0600
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#define FLAG_MIPS64_LIBN64 0x0700
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#define FLAG_X8664_LIBX32 0x0800
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#define FLAG_ARM_LIBHF 0x0900
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#define FLAG_AARCH64_LIB64 0x0a00
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#define FLAG_ARM_LIBSF 0x0b00
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#define FLAG_MIPS_LIB32_NAN2008 0x0c00
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#define FLAG_MIPS64_LIBN32_NAN2008 0x0d00
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#define FLAG_MIPS64_LIBN64_NAN2008 0x0e00
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#define FLAG_RISCV_FLOAT_ABI_SOFT 0x0f00
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#define FLAG_RISCV_FLOAT_ABI_DOUBLE 0x1000
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/* Name of auxiliary cache. */
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#define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache"
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/* Declared in cache.c. */
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extern void print_cache (const char *cache_name);
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extern void init_cache (void);
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extern void save_cache (const char *cache_name);
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struct glibc_hwcaps_subdirectory;
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/* Return a struct describing the subdirectory for NAME. Reuse an
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existing struct if it exists. */
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struct glibc_hwcaps_subdirectory *new_glibc_hwcaps_subdirectory
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(const char *name);
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/* Returns the name that was specified when
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add_glibc_hwcaps_subdirectory was called. */
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const char *glibc_hwcaps_subdirectory_name
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(const struct glibc_hwcaps_subdirectory *);
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extern void add_to_cache (const char *path, const char *filename,
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const char *soname, int flags,
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unsigned int osversion, unsigned int isa_level,
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uint64_t hwcap,
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struct glibc_hwcaps_subdirectory *);
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extern void init_aux_cache (void);
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extern void load_aux_cache (const char *aux_cache_name);
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extern int search_aux_cache (struct stat64 *stat_buf, int *flags,
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unsigned int *osversion,
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unsigned int *isa_level, char **soname);
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extern void add_to_aux_cache (struct stat64 *stat_buf, int flags,
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unsigned int osversion,
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unsigned int isa_level, const char *soname);
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extern void save_aux_cache (const char *aux_cache_name);
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/* Declared in readlib.c. */
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extern int process_file (const char *real_file_name, const char *file_name,
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const char *lib, int *flag,
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unsigned int *osversion, unsigned int *isa_level,
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char **soname, int is_link,
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struct stat64 *stat_buf);
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extern char *implicit_soname (const char *lib, int flag);
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/* Declared in readelflib.c. */
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extern int process_elf_file (const char *file_name, const char *lib,
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int *flag, unsigned int *osversion,
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unsigned int *isa_level, char **soname,
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void *file_contents, size_t file_length);
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/* Declared in chroot_canon.c. */
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extern char *chroot_canon (const char *chroot, const char *name);
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/* Declared in ldconfig.c. */
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extern int opt_verbose;
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enum opt_format
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{
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opt_format_old = 0, /* Use struct cache_file. */
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opt_format_compat = 1, /* Use both, old format followed by new. */
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opt_format_new = 2, /* Use struct cache_file_new. */
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};
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extern enum opt_format opt_format;
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/* Prototypes for a few program-wide used functions. */
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#include <programs/xmalloc.h>
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#endif /* ! _LDCONFIG_H */
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