1/* Copyright (C) 1999-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Andreas Jaeger <aj@suse.de>, 1999.
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
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef _LDCONFIG_H
20#define _LDCONFIG_H
21
22#include <stddef.h>
23#include <stdint.h>
24#include <sys/stat.h>
25
26#define FLAG_ANY -1
27#define FLAG_TYPE_MASK 0x00ff
28#define FLAG_LIBC4 0x0000
29#define FLAG_ELF 0x0001
30#define FLAG_ELF_LIBC5 0x0002
31#define FLAG_ELF_LIBC6 0x0003
32#define FLAG_REQUIRED_MASK 0xff00
33#define FLAG_SPARC_LIB64 0x0100
34#define FLAG_IA64_LIB64 0x0200
35#define FLAG_X8664_LIB64 0x0300
36#define FLAG_S390_LIB64 0x0400
37#define FLAG_POWERPC_LIB64 0x0500
38#define FLAG_MIPS64_LIBN32 0x0600
39#define FLAG_MIPS64_LIBN64 0x0700
40#define FLAG_X8664_LIBX32 0x0800
41#define FLAG_ARM_LIBHF 0x0900
42#define FLAG_AARCH64_LIB64 0x0a00
43#define FLAG_ARM_LIBSF 0x0b00
44#define FLAG_MIPS_LIB32_NAN2008 0x0c00
45#define FLAG_MIPS64_LIBN32_NAN2008 0x0d00
46#define FLAG_MIPS64_LIBN64_NAN2008 0x0e00
47#define FLAG_RISCV_FLOAT_ABI_SOFT 0x0f00
48#define FLAG_RISCV_FLOAT_ABI_DOUBLE 0x1000
49
50/* Name of auxiliary cache. */
51#define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache"
52
53/* Declared in cache.c. */
54extern void print_cache (const char *cache_name);
55
56extern void init_cache (void);
57
58extern void save_cache (const char *cache_name);
59
60struct glibc_hwcaps_subdirectory;
61
62/* Return a struct describing the subdirectory for NAME. Reuse an
63 existing struct if it exists. */
64struct glibc_hwcaps_subdirectory *new_glibc_hwcaps_subdirectory
65 (const char *name);
66
67/* Returns the name that was specified when
68 add_glibc_hwcaps_subdirectory was called. */
69const char *glibc_hwcaps_subdirectory_name
70 (const struct glibc_hwcaps_subdirectory *);
71
72extern void add_to_cache (const char *path, const char *filename,
73 const char *soname, int flags,
74 unsigned int osversion, unsigned int isa_level,
75 uint64_t hwcap,
76 struct glibc_hwcaps_subdirectory *);
77
78extern void init_aux_cache (void);
79
80extern void load_aux_cache (const char *aux_cache_name);
81
82extern int search_aux_cache (struct stat64 *stat_buf, int *flags,
83 unsigned int *osversion,
84 unsigned int *isa_level, char **soname);
85
86extern void add_to_aux_cache (struct stat64 *stat_buf, int flags,
87 unsigned int osversion,
88 unsigned int isa_level, const char *soname);
89
90extern void save_aux_cache (const char *aux_cache_name);
91
92/* Declared in readlib.c. */
93extern int process_file (const char *real_file_name, const char *file_name,
94 const char *lib, int *flag,
95 unsigned int *osversion, unsigned int *isa_level,
96 char **soname, int is_link,
97 struct stat64 *stat_buf);
98
99extern char *implicit_soname (const char *lib, int flag);
100
101/* Declared in readelflib.c. */
102extern int process_elf_file (const char *file_name, const char *lib,
103 int *flag, unsigned int *osversion,
104 unsigned int *isa_level, char **soname,
105 void *file_contents, size_t file_length);
106
107/* Declared in chroot_canon.c. */
108extern char *chroot_canon (const char *chroot, const char *name);
109
110/* Declared in ldconfig.c. */
111extern int opt_verbose;
112
113enum opt_format
114 {
115 opt_format_old = 0, /* Use struct cache_file. */
116 opt_format_compat = 1, /* Use both, old format followed by new. */
117 opt_format_new = 2, /* Use struct cache_file_new. */
118 };
119
120extern enum opt_format opt_format;
121
122/* Prototypes for a few program-wide used functions. */
123#include <programs/xmalloc.h>
124
125#endif /* ! _LDCONFIG_H */
126