1 /* Copyright (C) 1999-2022 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 
49 /* Name of auxiliary cache.  */
50 #define _PATH_LDCONFIG_AUX_CACHE "/var/cache/ldconfig/aux-cache"
51 
52 /* Declared in cache.c.  */
53 extern void print_cache (const char *cache_name);
54 
55 extern void init_cache (void);
56 
57 extern void save_cache (const char *cache_name);
58 
59 struct glibc_hwcaps_subdirectory;
60 
61 /* Return a struct describing the subdirectory for NAME.  Reuse an
62    existing struct if it exists.  */
63 struct glibc_hwcaps_subdirectory *new_glibc_hwcaps_subdirectory
64   (const char *name);
65 
66 /* Returns the name that was specified when
67    add_glibc_hwcaps_subdirectory was called.  */
68 const char *glibc_hwcaps_subdirectory_name
69   (const struct glibc_hwcaps_subdirectory *);
70 
71 extern void add_to_cache (const char *path, const char *filename,
72 			  const char *soname, int flags,
73 			  unsigned int isa_level, uint64_t hwcap,
74 			  struct glibc_hwcaps_subdirectory *);
75 
76 extern void init_aux_cache (void);
77 
78 extern void load_aux_cache (const char *aux_cache_name);
79 
80 extern int search_aux_cache (struct stat *stat_buf, int *flags,
81 			     unsigned int *isa_level, char **soname);
82 
83 extern void add_to_aux_cache (struct stat *stat_buf, int flags,
84 			      unsigned int isa_level, const char *soname);
85 
86 extern void save_aux_cache (const char *aux_cache_name);
87 
88 /* Declared in readlib.c.  */
89 extern int process_file (const char *real_file_name, const char *file_name,
90 			 const char *lib, int *flag, unsigned int *isa_level,
91 			 char **soname, int is_link, struct stat *stat_buf);
92 
93 extern char *implicit_soname (const char *lib, int flag);
94 
95 /* Declared in readelflib.c.  */
96 extern 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.  */
101 extern char *chroot_canon (const char *chroot, const char *name);
102 
103 /* Declared in ldconfig.c.  */
104 extern int opt_verbose;
105 
106 enum 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 
113 extern 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