path: root/elf/cache.c

/* Copyright (C) 1999-2013 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Andreas Jaeger <aj@suse.de>, 1999.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published
   by the Free Software Foundation; version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, see <http://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <error.h>
#include <dirent.h>
#include <inttypes.h>
#include <libgen.h>
#include <libintl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <stdint.h>
#include <sys/fcntl.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>

#include <ldconfig.h>
#include <dl-cache.h>

struct cache_entry
{
  char *lib;			/* Library name.  */
  char *path;			/* Path to find library.  */
  int flags;			/* Flags to indicate kind of library.  */
  unsigned int osversion;	/* Required OS version.  */
  uint64_t hwcap;		/* Important hardware capabilities.  */
  int bits_hwcap;		/* Number of bits set in hwcap.  */
  struct cache_entry *next;	/* Next entry in list.  */
};

/* List of all cache entries.  */
static struct cache_entry *entries;

static const char *flag_descr[] =
{ "libc4", "ELF", "libc5", "libc6"};

/* Print a single entry.  */
static void
print_entry (const char *lib, int flag, unsigned int osversion,
	     uint64_t hwcap, const char *key)
{
  printf ("\t%s (", lib);
  switch (flag & FLAG_TYPE_MASK)
    {
    case FLAG_LIBC4:
    case FLAG_ELF:
    case FLAG_ELF_LIBC5:
    case FLAG_ELF_LIBC6:
      fputs (flag_descr[flag & FLAG_TYPE_MASK], stdout);
      break;
    default:
      fputs (_("unknown"), stdout);
      break;
    }
  switch (flag & FLAG_REQUIRED_MASK)
    {
    case FLAG_SPARC_LIB64:
      fputs (",64bit", stdout);
      break;
    c