1/* Copyright (C) 2022-2023 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#ifndef _LDCONFIG_H
19#define _LDCONFIG_H
20
21#include <stddef.h>
22#include <stdint.h>
23#include <sys/stat.h>
24
25#define FLAG_ANY -1
26#define FLAG_TYPE_MASK 0x00ff
27#define FLAG_LIBC4 0x0000
28#define FLAG_ELF 0x0001
29#define FLAG_ELF_LIBC5 0x0002
30#define FLAG_ELF_LIBC6 0x0003
31#define FLAG_REQUIRED_MASK 0xff00
32#define FLAG_SPARC_LIB64 0x0100
33#define FLAG_IA64_LIB64 0x0200
34#define FLAG_X8664_LIB64 0x0300
35#define FLAG_S390_LIB64 0x0400
36#define FLAG_POWERPC_LIB64 0x0500
37#define FLAG_MIPS64_LIBN32 0x0600
38#define FLAG_MIPS64_LIBN64 0x0700
39#define FLAG_X8664_LIBX32 0x0800
40#define FLAG_ARM_LIBHF 0x0900
41#define FLAG_AARCH64_LIB64 0x0a00
42#define FLAG_ARM_LIBSF 0x0b00
43#define FLAG_MIPS_LIB32_NAN2008 0x0c00
44#define FLAG_MIPS64_LIBN32_NAN2008 0x0d00
45#define FLAG_MIPS64_LIBN64_NAN2008 0x0e00
46#define FLAG_RISCV_FLOAT_ABI_SOFT 0x0f00
47#define FLAG_RISCV_FLOAT_ABI_DOUBLE 0x1000
48#define FLAG_LARCH_FLOAT_ABI_SOFT 0x1100
49#define FLAG_LARCH_FLOAT_ABI_DOUBLE 0x1200
50
51/* Name of auxiliary cache. */
52#define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache"
53
54/* Declared in cache.c. */
55extern void print_cache (const char *cache_name);
56
57extern void init_cache (void);
58
59extern void save_cache (const char *cache_name);
60
61struct glibc_hwcaps_subdirectory;
62
63/* Return a struct describing the subdirectory for NAME. Reuse an
64 existing struct if it exists. */
65struct glibc_hwcaps_subdirectory *new_glibc_hwcaps_subdirectory
66 (const char *name);
67
68/* Returns the name that was specified when
69 add_glibc_hwcaps_subdirectory was called. */
70const char *glibc_hwcaps_subdirectory_name
71 (const struct glibc_hwcaps_subdirectory *);
72
73extern void add_to_cache (const char *path, const char *filename,
74 const char *soname, int flags,
75 unsigned int isa_level,
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 stat *stat_buf, int *flags,
83 unsigned int *isa_level, char **soname);
84
85extern void add_to_aux_cache (struct stat *stat_buf, int flags,
86 unsigned int isa_level, const char *soname);
87
88extern void save_aux_cache (const char *aux_cache_name);
89
90/* Declared in readlib.c. */
91extern int process_file (const char *real_file_name, const char *file_name,
92 const char *lib, int *flag, unsigned int *isa_level,
93 char **soname, int is_link, struct stat *stat_buf);
94
95/* Declared in readelflib.c. */
96extern int process_elf_file (const char *file_name, const char *lib,
97 int *flag, unsigned int *isa_level, char **soname,
98 void *file_contents, size_t file_length);
99
100/* Declared in chroot_canon.c. */
101extern char *chroot_canon (const char *chroot, const char *name);
102
103/* Declared in ldconfig.c. */
104extern int opt_verbose;
105
106enum opt_format
107 {
108 opt_format_old = 0, /* Use struct cache_file. */
109 opt_format_compat = 1, /* Use both, old format followed by new. */
110 opt_format_new = 2, /* Use struct cache_file_new. */
111 };
112
113extern enum opt_format opt_format;
114
115/* Prototypes for a few program-wide used functions. */
116#include <programs/xmalloc.h>
117
118#endif /* ! _LDCONFIG_H */
119