Line data    Source code

       1             : /* Describe known auxv types.
       2             :    Copyright (C) 2007, 2008, 2009 Red Hat, Inc.
       3             :    This file is part of elfutils.
       4             : 
       5             :    This file is free software; you can redistribute it and/or modify
       6             :    it under the terms of either
       7             : 
       8             :      * the GNU Lesser General Public License as published by the Free
       9             :        Software Foundation; either version 3 of the License, or (at
      10             :        your option) any later version
      11             : 
      12             :    or
      13             : 
      14             :      * the GNU General Public License as published by the Free
      15             :        Software Foundation; either version 2 of the License, or (at
      16             :        your option) any later version
      17             : 
      18             :    or both in parallel, as here.
      19             : 
      20             :    elfutils is distributed in the hope that it will be useful, but
      21             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      22             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      23             :    General Public License for more details.
      24             : 
      25             :    You should have received copies of the GNU General Public License and
      26             :    the GNU Lesser General Public License along with this program.  If
      27             :    not, see <http://www.gnu.org/licenses/>.  */
      28             : 
      29             : #ifdef HAVE_CONFIG_H
      30             : # include <config.h>
      31             : #endif
      32             : 
      33             : #include <assert.h>
      34             : #include <byteswap.h>
      35             : #include <endian.h>
      36             : #include <inttypes.h>
      37             : #include <stdio.h>
      38             : #include <stddef.h>
      39             : #include <libeblP.h>
      40             : 
      41             : #define AUXV_TYPES                                                            \
      42             :   TYPE (NULL, "")                                                           \
      43             :   TYPE (IGNORE, "")                                                         \
      44             :   TYPE (EXECFD, "d")                                                        \
      45             :   TYPE (EXECFN, "s")                                                        \
      46             :   TYPE (PHDR, "p")                                                          \
      47             :   TYPE (PHENT, "u")                                                         \
      48             :   TYPE (PHNUM, "u")                                                         \
      49             :   TYPE (PAGESZ, "u")                                                        \
      50             :   TYPE (BASE, "p")                                                          \
      51             :   TYPE (FLAGS, "x")                                                         \
      52             :   TYPE (ENTRY, "p")                                                         \
      53             :   TYPE (NOTELF, "")                                                         \
      54             :   TYPE (UID, "u")                                                           \
      55             :   TYPE (EUID, "u")                                                          \
      56             :   TYPE (GID, "u")                                                           \
      57             :   TYPE (EGID, "u")                                                          \
      58             :   TYPE (CLKTCK, "u")                                                        \
      59             :   TYPE (PLATFORM, "s")                                                              \
      60             :   TYPE (BASE_PLATFORM, "s")                                                 \
      61             :   TYPE (HWCAP, "x")                                                         \
      62             :   TYPE (FPUCW, "x")                                                         \
      63             :   TYPE (DCACHEBSIZE, "d")                                                   \
      64             :   TYPE (ICACHEBSIZE, "d")                                                   \
      65             :   TYPE (UCACHEBSIZE, "d")                                                   \
      66             :   TYPE (IGNOREPPC, "")                                                              \
      67             :   TYPE (SECURE, "u")                                                        \
      68             :   TYPE (SYSINFO, "p")                                                       \
      69             :   TYPE (SYSINFO_EHDR, "p")                                                  \
      70             :   TYPE (L1I_CACHESHAPE, "d")                                                \
      71             :   TYPE (L1D_CACHESHAPE, "d")                                                \
      72             :   TYPE (L2_CACHESHAPE, "d")                                                 \
      73             :   TYPE (L3_CACHESHAPE, "d")                                                 \
      74             :   TYPE (RANDOM, "p")
      75             : 
      76             : static const struct
      77             : {
      78             :   const char *name, *format;
      79             : } auxv_types[] =
      80             :   {
      81             : #define TYPE(name, fmt) [AT_##name] = { #name, fmt },
      82             :     AUXV_TYPES
      83             : #undef  TYPE
      84             :   };
      85             : #define nauxv_types (sizeof auxv_types / sizeof auxv_types[0])
      86             : 
      87             : int
      88         150 : ebl_auxv_info (Ebl *ebl, GElf_Xword a_type, const char **name,
      89             :                const char **format)
      90             : {
      91         150 :   int result = ebl->auxv_info (a_type, name, format);
      92         150 :   if (result == 0 && a_type < nauxv_types && auxv_types[a_type].name != NULL)
      93             :     {
      94             :       /* The machine specific function did not know this type.  */
      95         146 :       *name = auxv_types[a_type].name;
      96         146 :       *format = auxv_types[a_type].format;
      97         146 :       result = 1;
      98             :     }
      99         150 :   return result;
     100             : }