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.  */
      55  extern void print_cache (const char *cache_name);
      56  
      57  extern void init_cache (void);
      58  
      59  extern void save_cache (const char *cache_name);
      60  
      61  struct glibc_hwcaps_subdirectory;
      62  
      63  /* Return a struct describing the subdirectory for NAME.  Reuse an
      64     existing struct if it exists.  */
      65  struct 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.  */
      70  const char *glibc_hwcaps_subdirectory_name
      71    (const struct glibc_hwcaps_subdirectory *);
      72  
      73  extern 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  
      78  extern void init_aux_cache (void);
      79  
      80  extern void load_aux_cache (const char *aux_cache_name);
      81  
      82  extern int search_aux_cache (struct stat *stat_buf, int *flags,
      83  			     unsigned int *isa_level, char **soname);
      84  
      85  extern void add_to_aux_cache (struct stat *stat_buf, int flags,
      86  			      unsigned int isa_level, const char *soname);
      87  
      88  extern void save_aux_cache (const char *aux_cache_name);
      89  
      90  /* Declared in readlib.c.  */
      91  extern 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.  */
      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  */