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aa903cfb1b
binutils-gdb/binutils/readelf.c
Andreas Schwab aa903cfb1b * readelf.c (process_relocs): Determine type of reloc from 
DT_PLTREL and from section type.
1999-05-31 00:58:59 +00:00

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/* readelf.c -- display contents of an ELF format file
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
Originally developed by Eric Youngdale <eric@andante.jic.com>
Modifications by Nick Clifton <nickc@cygnus.com>
This file is part of GNU Binutils.
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; either 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, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
#include <assert.h>
#include <sys/stat.h>
#include <stdio.h>
#include <time.h>
#include "bfd.h"
#include "elf/common.h"
#include "elf/external.h"
#include "elf/internal.h"
#include "elf/dwarf2.h"
/* The following headers use the elf/reloc-macros.h file to
automatically generate relocation recognition functions
such as elf_mips_reloc_type() */
#define RELOC_MACROS_GEN_FUNC
#include "elf/i386.h"
#include "elf/v850.h"
#include "elf/ppc.h"
#include "elf/mips.h"
#include "elf/alpha.h"
#include "elf/arm.h"
#include "elf/m68k.h"
#include "elf/sparc.h"
#include "elf/m32r.h"
#include "elf/d10v.h"
#include "elf/d30v.h"
#include "elf/sh.h"
#include "elf/mn10200.h"
#include "elf/mn10300.h"
#include "elf/hppa.h"
#include "elf/arc.h"
#include "elf/fr30.h"
#include "elf/mcore.h"
#include "elf/i960.h"
#include "bucomm.h"
#include "getopt.h"
#ifdef ANSI_PROTOTYPES
#include <stdarg.h>
#else
#include <varargs.h>
#endif
char * program_name = "readelf";
unsigned int dynamic_addr;
unsigned int dynamic_size;
unsigned int rela_addr;
unsigned int rela_size;
char * dynamic_strings;
char * string_table;
Elf_Internal_Sym * dynamic_symbols;
Elf_Internal_Syminfo * dynamic_syminfo;
unsigned long dynamic_syminfo_offset;
unsigned int dynamic_syminfo_nent;
char program_interpreter [64];
int dynamic_info[DT_JMPREL + 1];
int version_info[16];
int loadaddr = 0;
Elf_Internal_Ehdr elf_header;
Elf_Internal_Shdr * section_headers;
Elf_Internal_Dyn * dynamic_segment;
int show_name;
int do_dynamic;
int do_syms;
int do_reloc;
int do_sections;
int do_segments;
int do_using_dynamic;
int do_header;
int do_dump;
int do_version;
int do_histogram;
int do_debugging;
int do_debug_info;
int do_debug_abbrevs;
int do_debug_lines;
int do_debug_pubnames;
int do_debug_aranges;
int binary_class;
/* A dynamic array of flags indicating which sections require dumping. */
char * dump_sects = NULL;
unsigned int num_dump_sects = 0;
#define HEX_DUMP (1 << 0)
#define DISASS_DUMP (1 << 1)
#define DEBUG_DUMP (1 << 2)
/* Forward declarations for dumb compilers. */
static unsigned long (* byte_get) PARAMS ((unsigned char *, int));
static const char * get_mips_dynamic_type PARAMS ((unsigned long type));
static const char * get_dynamic_type PARAMS ((unsigned long type));
static int dump_relocations PARAMS ((FILE *, unsigned long, unsigned long, Elf_Internal_Sym *, char *, int));
static char * get_file_type PARAMS ((unsigned e_type));
static char * get_machine_name PARAMS ((unsigned e_machine));
static char * get_machine_data PARAMS ((unsigned e_data));
static char * get_machine_flags PARAMS ((unsigned, unsigned e_machine));
static const char * get_mips_segment_type PARAMS ((unsigned long type));
static const char * get_segment_type PARAMS ((unsigned long p_type));
static const char * get_mips_section_type_name PARAMS ((unsigned int sh_type));
static const char * get_section_type_name PARAMS ((unsigned int sh_type));
static char * get_symbol_binding PARAMS ((unsigned int binding));
static char * get_symbol_type PARAMS ((unsigned int type));
static void usage PARAMS ((void));
static void parse_args PARAMS ((int argc, char ** argv));
static int process_file_header PARAMS ((void));
static int process_program_headers PARAMS ((FILE *));
static int process_section_headers PARAMS ((FILE *));
static void dynamic_segment_mips_val PARAMS ((Elf_Internal_Dyn *entry));
static int process_dynamic_segment PARAMS ((FILE *));
static int process_symbol_table PARAMS ((FILE *));
static int process_section_contents PARAMS ((FILE *));
static void process_file PARAMS ((char * file_name));
static int process_relocs PARAMS ((FILE *));
static int process_version_sections PARAMS ((FILE *));
static char * get_ver_flags PARAMS ((unsigned int flags));
static char * get_symbol_index_type PARAMS ((unsigned int type));
static int get_section_headers PARAMS ((FILE * file));
static int get_file_header PARAMS ((FILE * file));
static Elf_Internal_Sym * get_elf_symbols PARAMS ((FILE * file, unsigned long offset, unsigned long number));
static int * get_dynamic_data PARAMS ((FILE * file, unsigned int number));
#ifdef SUPPORT_DISASSEMBLY
static int disassemble_section PARAMS ((Elf32_Internal_Shdr *, FILE *));
#endif
static int dump_section PARAMS ((Elf32_Internal_Shdr *, FILE *));
static int display_debug_section PARAMS ((Elf32_Internal_Shdr *, FILE *));
static int display_debug_info PARAMS ((Elf32_Internal_Shdr *, unsigned char *, FILE *));
static int display_debug_not_supported PARAMS ((Elf32_Internal_Shdr *, unsigned char *, FILE *));
static int display_debug_lines PARAMS ((Elf32_Internal_Shdr *, unsigned char *, FILE *));
static int display_debug_abbrev PARAMS ((Elf32_Internal_Shdr *, unsigned char *, FILE *));
static int display_debug_aranges PARAMS ((Elf32_Internal_Shdr *, unsigned char *, FILE *));
static unsigned char * process_abbrev_section PARAMS ((unsigned char *, unsigned char *));
static unsigned long read_leb128 PARAMS ((unsigned char *, int *, int));
static int process_extended_line_op PARAMS ((unsigned char *, int));
static void reset_state_machine PARAMS ((int));
static char * get_TAG_name PARAMS ((unsigned long));
static char * get_AT_name PARAMS ((unsigned long));
static char * get_FORM_name PARAMS ((unsigned long));
static void free_abbrevs PARAMS ((void));
static void add_abbrev PARAMS ((unsigned long, unsigned long, int));
static void add_abbrev_attr PARAMS ((unsigned long, unsigned long));
static unsigned char * read_and_display_attr PARAMS ((unsigned long, unsigned long, unsigned char *, unsigned long));
static unsigned char * display_block PARAMS ((unsigned char *, unsigned long));
static void decode_location_expression PARAMS ((unsigned char *, unsigned int));
static void request_dump PARAMS ((unsigned int, char));
static const char * get_elf_class PARAMS ((unsigned char));
static const char * get_data_encoding PARAMS ((unsigned char));
static const char * get_osabi_name PARAMS ((unsigned char));
static int guess_is_rela PARAMS ((unsigned long));
typedef int Elf32_Word;
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
#define UNKNOWN -1
#define SECTION_NAME(X) (string_table + (X)->sh_name)
#define DT_VERSIONTAGIDX(tag) (DT_VERNEEDNUM - (tag)) /* Reverse order! */
#define BYTE_GET(field) byte_get (field, sizeof (field))
#define NUM_ELEM(array) (sizeof (array) / sizeof ((array)[0]))
#define GET_DATA_ALLOC(offset, size, var, type, reason) \
if (fseek (file, offset, SEEK_SET)) \
{ \
error (_("Unable to seek to start of %s at %x\n"), reason, offset); \
return 0; \
} \
\
var = (type) malloc (size); \
\
if (var == NULL) \
{ \
error (_("Out of memory allocating %d bytes for %s\n"), size, reason); \
return 0; \
} \
\
if (fread (var, size, 1, file) != 1) \
{ \
error (_("Unable to read in %d bytes of %s\n"), size, reason); \
free (var); \
var = NULL; \
return 0; \
}
#define GET_DATA(offset, var, reason) \
if (fseek (file, offset, SEEK_SET)) \
{ \
error (_("Unable to seek to %x for %s\n"), offset, reason); \
return 0; \
} \
else if (fread (& var, sizeof (var), 1, file) != 1) \
{ \
error (_("Unable to read data at %x for %s\n"), offset, reason); \
return 0; \
}
#ifdef ANSI_PROTOTYPES
static void
error (const char * message, ...)
{
va_list args;
fprintf (stderr, _("%s: Error: "), program_name);
va_start (args, message);
vfprintf (stderr, message, args);
va_end (args);
return;
}
static void
warn (const char * message, ...)
{
va_list args;
fprintf (stderr, _("%s: Warning: "), program_name);
va_start (args, message);
vfprintf (stderr, message, args);
va_end (args);
return;
}
#else
static void
error (va_alist)
va_dcl
{
char * message;
va_list args;
fprintf (stderr, _("%s: Error: "), program_name);
va_start (args);
message = va_arg (args, char *);
vfprintf (stderr, message, args);
va_end (args);
return;
}
static void
warn (va_alist)
va_dcl
{
char * message;
va_list args;
fprintf (stderr, _("%s: Warning: "), program_name);
va_start (args);
message = va_arg (args, char *);
vfprintf (stderr, message, args);
va_end (args);
return;
}
#endif
static unsigned long int
byte_get_little_endian (field, size)
unsigned char * field;
int size;
{
switch (size)
{
case 1:
return * field;
case 2:
return ((unsigned int) (field [0]))
| (((unsigned int) (field [1])) << 8);
case 4:
return ((unsigned long) (field [0]))
| (((unsigned long) (field [1])) << 8)
| (((unsigned long) (field [2])) << 16)
| (((unsigned long) (field [3])) << 24);
default:
error (_("Unhandled data length: %d\n"), size);
abort();
}
}
static unsigned long int
byte_get_big_endian (field, size)
unsigned char * field;
int size;
{
switch (size)
{
case 1:
return * field;
case 2:
return ((unsigned int) (field [1])) | (((int) (field [0])) << 8);
case 4:
return ((unsigned long) (field [3]))
| (((unsigned long) (field [2])) << 8)
| (((unsigned long) (field [1])) << 16)
| (((unsigned long) (field [0])) << 24);
default:
error (_("Unhandled data length: %d\n"), size);
abort();
}
}
/* Guess the relocation sized based on the sized commonly used by the specific machine. */
static int
guess_is_rela (e_machine)
unsigned long e_machine;
{
switch (e_machine)
{
/* Targets that use REL relocations. */
case EM_ARM:
case EM_386:
case EM_486:
case EM_960:
case EM_CYGNUS_M32R:
case EM_CYGNUS_D10V:
case EM_MIPS:
case EM_MIPS_RS4_BE:
return FALSE;
/* Targets that use RELA relocations. */
case EM_68K:
case EM_SPARC:
case EM_PPC:
case EM_CYGNUS_V850:
case EM_CYGNUS_D30V:
case EM_CYGNUS_MN10200:
case EM_CYGNUS_MN10300:
case EM_CYGNUS_FR30:
case EM_SH:
case EM_ALPHA:
case EM_MCORE:
return TRUE;
default:
warn (_("Don't know about relocations on this machine architecture\n"));
return FALSE;
}
}
/* Display the contents of the relocation data
found at the specified offset. */
static int
dump_relocations (file, rel_offset, rel_size, symtab, strtab, is_rela)
FILE * file;
unsigned long rel_offset;
unsigned long rel_size;
Elf_Internal_Sym * symtab;
char * strtab;
int is_rela;
{
unsigned int i;
Elf_Internal_Rel * rels;
Elf_Internal_Rela * relas;
if (is_rela == UNKNOWN)
is_rela = guess_is_rela (elf_header.e_machine);
if (is_rela)
{
Elf32_External_Rela * erelas;
GET_DATA_ALLOC (rel_offset, rel_size, erelas,
Elf32_External_Rela *, "relocs");
rel_size = rel_size / sizeof (Elf32_External_Rela);
relas = (Elf_Internal_Rela *) malloc (rel_size *
sizeof (Elf_Internal_Rela));
if (relas == NULL)
{
error(_("out of memory parsing relocs"));
return 0;
}
for (i = 0; i < rel_size; i++)
{
relas[i].r_offset = BYTE_GET (erelas[i].r_offset);
relas[i].r_info = BYTE_GET (erelas[i].r_info);
relas[i].r_addend = BYTE_GET (erelas[i].r_addend);
}
free (erelas);
rels = (Elf_Internal_Rel *) relas;
}
else
{
Elf32_External_Rel * erels;
unsigned long saved_rel_size = rel_size;
GET_DATA_ALLOC (rel_offset, rel_size, erels,
Elf32_External_Rel *, "relocs");
rel_size = rel_size / sizeof (Elf32_External_Rel);
rels = (Elf_Internal_Rel *) malloc (rel_size *
sizeof (Elf_Internal_Rel));
if (rels == NULL)
{
error(_("out of memory parsing relocs"));
return 0;
}
for (i = 0; i < rel_size; i++)
{
rels[i].r_offset = BYTE_GET (erels[i].r_offset);
rels[i].r_info = BYTE_GET (erels[i].r_info);
}
free (erels);
relas = (Elf_Internal_Rela *) rels;
}
if (is_rela)
printf
(_(" Offset Info Type Symbol's Value Symbol's Name Addend\n"));
else
printf
(_(" Offset Info Type Symbol's Value Symbol's Name\n"));
for (i = 0; i < rel_size; i++)
{
const char * rtype;
unsigned long offset;
unsigned long info;
int symtab_index;
if (is_rela)
{
offset = relas [i].r_offset;
info = relas [i].r_info;
}
else
{
offset = rels [i].r_offset;
info = rels [i].r_info;
}
printf (" %8.8lx %5.5lx ", offset, info);
switch (elf_header.e_machine)
{
default:
rtype = NULL;
break;
case EM_CYGNUS_M32R:
rtype = elf_m32r_reloc_type (ELF32_R_TYPE (info));
break;
case EM_386:
case EM_486:
rtype = elf_i386_reloc_type (ELF32_R_TYPE (info));
break;
case EM_68K:
rtype = elf_m68k_reloc_type (ELF32_R_TYPE (info));
break;
case EM_960:
rtype = elf_i960_reloc_type (ELF32_R_TYPE (info));
break;
case EM_SPARC:
rtype = elf_sparc_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_V850:
rtype = v850_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_D10V:
rtype = elf_d10v_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_D30V:
rtype = elf_d30v_reloc_type (ELF32_R_TYPE (info));
break;
case EM_SH:
rtype = elf_sh_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_MN10300:
rtype = elf_mn10300_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_MN10200:
rtype = elf_mn10200_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_FR30:
rtype = elf_fr30_reloc_type (ELF32_R_TYPE (info));
break;
case EM_MCORE:
rtype = elf_mcore_reloc_type (ELF32_R_TYPE (info));
break;
case EM_PPC:
rtype = elf_ppc_reloc_type (ELF32_R_TYPE (info));
break;
case EM_MIPS:
case EM_MIPS_RS4_BE:
rtype = elf_mips_reloc_type (ELF32_R_TYPE (info));
break;
case EM_ALPHA:
rtype = elf_alpha_reloc_type (ELF32_R_TYPE (info));
break;
case EM_ARM:
rtype = elf_arm_reloc_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_ARC:
rtype = elf_arc_reloc_type (ELF32_R_TYPE (info));
break;
case EM_PARISC:
rtype = elf32_hppa_reloc_type (ELF32_R_TYPE (info));
break;
}
if (rtype == NULL)
printf (_("unrecognised: %-7lx"), ELF32_R_TYPE (info));
else
printf ("%-21.21s", rtype);
symtab_index = ELF32_R_SYM (info);
if (symtab_index && symtab != NULL)
{
Elf_Internal_Sym * psym;
psym = symtab + symtab_index;
printf (" %08lx ", (unsigned long) psym->st_value);
if (psym->st_name == 0)
printf ("%-25.25s",
SECTION_NAME (section_headers + psym->st_shndx));
else if (strtab == NULL)
printf (_("<string table index %3ld>"), psym->st_name);
else
printf ("%-25.25s", strtab + psym->st_name);
if (is_rela)
printf (" + %lx", (unsigned long) relas [i].r_addend);
}
else if (is_rela)
printf ("%34c%lx", ' ', (unsigned long) relas[i].r_addend);
putchar ('\n');
}
free (relas);
return 1;
}
static const char *
get_mips_dynamic_type (type)
unsigned long type;
{
switch (type)
{
case DT_MIPS_RLD_VERSION: return "MIPS_RLD_VERSION";
case DT_MIPS_TIME_STAMP: return "MIPS_TIME_STAMP";
case DT_MIPS_ICHECKSUM: return "MIPS_ICHECKSUM";
case DT_MIPS_IVERSION: return "MIPS_IVERSION";
case DT_MIPS_FLAGS: return "MIPS_FLAGS";
case DT_MIPS_BASE_ADDRESS: return "MIPS_BASE_ADDRESS";
case DT_MIPS_MSYM: return "MIPS_MSYM";
case DT_MIPS_CONFLICT: return "MIPS_CONFLICT";
case DT_MIPS_LIBLIST: return "MIPS_LIBLIST";
case DT_MIPS_LOCAL_GOTNO: return "MIPS_LOCAL_GOTNO";
case DT_MIPS_CONFLICTNO: return "MIPS_CONFLICTNO";
case DT_MIPS_LIBLISTNO: return "MIPS_LIBLISTNO";
case DT_MIPS_SYMTABNO: return "MIPS_SYMTABNO";
case DT_MIPS_UNREFEXTNO: return "MIPS_UNREFEXTNO";
case DT_MIPS_GOTSYM: return "MIPS_GOTSYM";
case DT_MIPS_HIPAGENO: return "MIPS_HIPAGENO";
case DT_MIPS_RLD_MAP: return "MIPS_RLD_MAP";
case DT_MIPS_DELTA_CLASS: return "MIPS_DELTA_CLASS";
case DT_MIPS_DELTA_CLASS_NO: return "MIPS_DELTA_CLASS_NO";
case DT_MIPS_DELTA_INSTANCE: return "MIPS_DELTA_INSTANCE";
case DT_MIPS_DELTA_INSTANCE_NO: return "MIPS_DELTA_INSTANCE_NO";
case DT_MIPS_DELTA_RELOC: return "MIPS_DELTA_RELOC";
case DT_MIPS_DELTA_RELOC_NO: return "MIPS_DELTA_RELOC_NO";
case DT_MIPS_DELTA_SYM: return "MIPS_DELTA_SYM";
case DT_MIPS_DELTA_SYM_NO: return "MIPS_DELTA_SYM_NO";
case DT_MIPS_DELTA_CLASSSYM: return "MIPS_DELTA_CLASSSYM";
case DT_MIPS_DELTA_CLASSSYM_NO: return "MIPS_DELTA_CLASSSYM_NO";
case DT_MIPS_CXX_FLAGS: return "MIPS_CXX_FLAGS";
case DT_MIPS_PIXIE_INIT: return "MIPS_PIXIE_INIT";
case DT_MIPS_SYMBOL_LIB: return "MIPS_SYMBOL_LIB";
case DT_MIPS_LOCALPAGE_GOTIDX: return "MIPS_LOCALPAGE_GOTIDX";
case DT_MIPS_LOCAL_GOTIDX: return "MIPS_LOCAL_GOTIDX";
case DT_MIPS_HIDDEN_GOTIDX: return "MIPS_HIDDEN_GOTIDX";
case DT_MIPS_PROTECTED_GOTIDX: return "MIPS_PROTECTED_GOTIDX";
case DT_MIPS_OPTIONS: return "MIPS_OPTIONS";
case DT_MIPS_INTERFACE: return "MIPS_INTERFACE";
case DT_MIPS_DYNSTR_ALIGN: return "MIPS_DYNSTR_ALIGN";
case DT_MIPS_INTERFACE_SIZE: return "MIPS_INTERFACE_SIZE";
case DT_MIPS_RLD_TEXT_RESOLVE_ADDR: return "MIPS_RLD_TEXT_RESOLVE_ADDR";
case DT_MIPS_PERF_SUFFIX: return "MIPS_PERF_SUFFIX";
case DT_MIPS_COMPACT_SIZE: return "MIPS_COMPACT_SIZE";
case DT_MIPS_GP_VALUE: return "MIPS_GP_VALUE";
case DT_MIPS_AUX_DYNAMIC: return "MIPS_AUX_DYNAMIC";
default:
return NULL;
}
}
static const char *
get_dynamic_type (type)
unsigned long type;
{
static char buff [32];
switch (type)
{
case DT_NULL: return "NULL";
case DT_NEEDED: return "NEEDED";
case DT_PLTRELSZ: return "PLTRELSZ";
case DT_PLTGOT: return "PLTGOT";
case DT_HASH: return "HASH";
case DT_STRTAB: return "STRTAB";
case DT_SYMTAB: return "SYMTAB";
case DT_RELA: return "RELA";
case DT_RELASZ: return "RELASZ";
case DT_RELAENT: return "RELAENT";
case DT_STRSZ: return "STRSZ";
case DT_SYMENT: return "SYMENT";
case DT_INIT: return "INIT";
case DT_FINI: return "FINI";
case DT_SONAME: return "SONAME";
case DT_RPATH: return "RPATH";
case DT_SYMBOLIC: return "SYMBOLIC";
case DT_REL: return "REL";
case DT_RELSZ: return "RELSZ";
case DT_RELENT: return "RELENT";
case DT_PLTREL: return "PLTREL";
case DT_DEBUG: return "DEBUG";
case DT_TEXTREL: return "TEXTREL";
case DT_JMPREL: return "JMPREL";
case DT_BIND_NOW: return "BIND_NOW";
case DT_INIT_ARRAY: return "INIT_ARRAY";
case DT_FINI_ARRAY: return "FINI_ARRAY";
case DT_INIT_ARRAYSZ: return "INIT_ARRAYSZ";
case DT_FINI_ARRAYSZ: return "FINI_ARRAYSZ";
case DT_PLTPADSZ: return "PLTPADSZ";
case DT_MOVEENT: return "MOVEENT";
case DT_MOVESZ: return "MOVESZ";
case DT_FEATURE_1: return "FEATURE_1";
case DT_POSFLAG_1: return "POSFLAG_1";
case DT_SYMINSZ: return "SYMINSZ";
case DT_SYMINENT: return "SYMINENT"; /* aka VALRNGHI */
case DT_ADDRRNGLO: return "ADDRRNGLO";
case DT_SYMINFO: return "SYMINFO"; /* aka ADDRRNGHI */
case DT_VERSYM: return "VERSYM";
case DT_RELACOUNT: return "RELACOUNT";
case DT_RELCOUNT: return "RELCOUNT";
case DT_FLAGS_1: return "FLAGS_1";
case DT_VERDEF: return "VERDEF";
case DT_VERDEFNUM: return "VERDEFNUM";
case DT_VERNEED: return "VERNEED";
case DT_VERNEEDNUM: return "VERNEEDNUM";
case DT_AUXILIARY: return "AUXILARY";
case DT_USED: return "USED";
case DT_FILTER: return "FILTER";
default:
if ((type >= DT_LOPROC) && (type <= DT_HIPROC))
{
const char * result;
switch (elf_header.e_machine)
{
case EM_MIPS:
case EM_MIPS_RS4_BE:
result = get_mips_dynamic_type (type);
break;
default:
result = NULL;
break;
}
if (result != NULL)
return result;
sprintf (buff, _("Processor Specific: %lx"), type);
}
else if ((type >= DT_LOOS) && (type <= DT_HIOS))
sprintf (buff, _("Operating System specific: %lx"), type);
else
sprintf (buff, _("<unknown>: %lx"), type);
return buff;
}
}
static char *
get_file_type (e_type)
unsigned e_type;
{
static char buff [32];
switch (e_type)
{
case ET_NONE: return _("NONE (None)");
case ET_REL: return _("REL (Relocatable file)");
case ET_EXEC: return _("EXEC (Executable file)");
case ET_DYN: return _("DYN (Shared object file)");
case ET_CORE: return _("CORE (Core file)");
default:
if ((e_type >= ET_LOPROC) && (e_type <= ET_HIPROC))
sprintf (buff, _("Processor Specific: (%x)"), e_type);
else if ((e_type >= ET_LOOS) && (e_type <= ET_HIOS))
sprintf (buff, _("OS Specific: (%x)"), e_type);
else
sprintf (buff, _("<unknown>: %x"), e_type);
return buff;
}
}
static char *
get_machine_name (e_machine)
unsigned e_machine;
{
static char buff [32];
switch (e_machine)
{
case EM_NONE: return _("None");
case EM_M32: return "WE32100";
case EM_SPARC: return "Sparc";
case EM_386: return "Intel 80386";
case EM_68K: return "MC68000";
case EM_88K: return "MC88000";
case EM_486: return "Intel 80486";
case EM_860: return "Intel 80860";
case EM_MIPS: return "MIPS R3000 big-endian";
case EM_S370: return "Amdahl";
case EM_MIPS_RS4_BE: return "MIPS R4000 big-endian";
case EM_OLD_SPARCV9: return "Sparc v9 (old)";
case EM_PARISC: return "HPPA";
case EM_PPC_OLD: return "Power PC (old)";
case EM_SPARC32PLUS: return "Sparc v8+" ;
case EM_960: return "Intel 90860";
case EM_PPC: return "PowerPC";
case EM_V800: return "NEC V800";
case EM_FR20: return "Fujitsu FR20";
case EM_RH32: return "TRW RH32";
case EM_MCORE: return "MCORE";
case EM_ARM: return "ARM";
case EM_OLD_ALPHA: return "Digital Alpha (old)";
case EM_SH: return "Hitachi SH";
case EM_SPARCV9: return "Sparc v9";
case EM_TRICORE: return "Siemens Tricore";
case EM_ARC: return "Argonaut RISC Core";
case EM_H8_300: return "Hitachi H8/300";
case EM_H8_300H: return "Hitachi H8/300H";
case EM_H8S: return "Hitachi H8S";
case EM_H8_500: return "Hitachi H8/500";
case EM_IA_64: return "Intel Merced";
case EM_MIPS_X: return "Stanford MIPS-X";
case EM_COLDFIRE: return "Motorola Coldfire";
case EM_68HC12: return "Motorola M68HC12";
case EM_ALPHA: return "Alpha";
case EM_CYGNUS_D10V: return "d10v";
case EM_CYGNUS_D30V: return "d30v";
case EM_CYGNUS_ARC: return "Arc";
case EM_CYGNUS_M32R: return "Mitsubishi M32r";
case EM_CYGNUS_V850: return "NEC v850";
case EM_CYGNUS_MN10300: return "mn10300";
case EM_CYGNUS_MN10200: return "mn10200";
case EM_CYGNUS_FR30: return "Fujitsu FR30";
default:
sprintf (buff, _("<unknown>: %x"), e_machine);
return buff;
}
}
static char *
get_machine_flags (e_flags, e_machine)
unsigned e_flags;
unsigned e_machine;
{
static char buf [1024];
buf[0] = '\0';
if (e_flags)
{
switch (e_machine)
{
default:
break;
case EM_68K:
if (e_flags & EF_CPU32)
strcat (buf, ", cpu32");
break;
case EM_PPC:
if (e_flags & EF_PPC_EMB)
strcat (buf, ", emb");
if (e_flags & EF_PPC_RELOCATABLE)
strcat (buf, ", relocatable");
if (e_flags & EF_PPC_RELOCATABLE_LIB)
strcat (buf, ", relocatable-lib");
break;
case EM_CYGNUS_V850:
switch (e_flags & EF_V850_ARCH)
{
case E_V850E_ARCH:
strcat (buf, ", v850e");
break;
case E_V850EA_ARCH:
strcat (buf, ", v850ea");
break;
case E_V850_ARCH:
strcat (buf, ", v850");
break;
default:
strcat (buf, ", unknown v850 architecture variant");
break;
}
break;
case EM_CYGNUS_M32R:
if ((e_flags & EF_M32R_ARCH) == E_M32R_ARCH)
strcat (buf, ", m32r");
break;
case EM_MIPS:
case EM_MIPS_RS4_BE:
if (e_flags & EF_MIPS_NOREORDER)
strcat (buf, ", noreorder");
if (e_flags & EF_MIPS_PIC)
strcat (buf, ", pic");
if (e_flags & EF_MIPS_CPIC)
strcat (buf, ", cpic");
if (e_flags & EF_MIPS_ABI2)
strcat (buf, ", abi2");
if ((e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_1)
strcat (buf, ", mips1");
if ((e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_2)
strcat (buf, ", mips2");
if ((e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_3)
strcat (buf, ", mips3");
if ((e_flags & EF_MIPS_ARCH) == E_MIPS_ARCH_4)
strcat (buf, ", mips4");
break;
}
}
return buf;
}
static char *
get_machine_data (e_data)
unsigned e_data;
{
static char buff [32];
switch (e_data)
{
case ELFDATA2LSB: return _("ELFDATA2LSB (little endian)");
case ELFDATA2MSB: return _("ELFDATA2MSB (big endian)");
default:
sprintf (buff, _("<unknown>: %x"), e_data);
return buff;
}
}
static const char *
get_mips_segment_type (type)
unsigned long type;
{
switch (type)
{
case PT_MIPS_REGINFO:
return "REGINFO";
case PT_MIPS_RTPROC:
return "RTPROC";
case PT_MIPS_OPTIONS:
return "OPTIONS";
default:
break;
}
return NULL;
}
static const char *
get_segment_type (p_type)
unsigned long p_type;
{
static char buff [32];
switch (p_type)
{
case PT_NULL: return "NULL";
case PT_LOAD: return "LOAD";
case PT_DYNAMIC: return "DYNAMIC";
case PT_INTERP: return "INTERP";
case PT_NOTE: return "NOTE";
case PT_SHLIB: return "SHLIB";
case PT_PHDR: return "PHDR";
default:
if ((p_type >= PT_LOPROC) && (p_type <= PT_HIPROC))
{
const char * result;
switch (elf_header.e_machine)
{
case EM_MIPS:
case EM_MIPS_RS4_BE:
result = get_mips_segment_type (p_type);
break;
default:
result = NULL;
break;
}
if (result != NULL)
return result;
sprintf (buff, "LOPROC+%lx", p_type - PT_LOPROC);
}
else if ((p_type >= PT_LOOS) && (p_type <= PT_HIOS))
sprintf (buff, "LOOS+%lx", p_type - PT_LOOS);
else
sprintf (buff, _("<unknown>: %lx"), p_type);
return buff;
}
}
static const char *
get_mips_section_type_name (sh_type)
unsigned int sh_type;
{
switch (sh_type)
{
case SHT_MIPS_LIBLIST: return "MIPS_LIBLIST";
case SHT_MIPS_MSYM: return "MIPS_MSYM";
case SHT_MIPS_CONFLICT: return "MIPS_CONFLICT";
case SHT_MIPS_GPTAB: return "MIPS_GPTAB";
case SHT_MIPS_UCODE: return "MIPS_UCODE";
case SHT_MIPS_DEBUG: return "MIPS_DEBUG";
case SHT_MIPS_REGINFO: return "MIPS_REGINFO";
case SHT_MIPS_PACKAGE: return "MIPS_PACKAGE";
case SHT_MIPS_PACKSYM: return "MIPS_PACKSYM";
case SHT_MIPS_RELD: return "MIPS_RELD";
case SHT_MIPS_IFACE: return "MIPS_IFACE";
case SHT_MIPS_CONTENT: return "MIPS_CONTENT";
case SHT_MIPS_OPTIONS: return "MIPS_OPTIONS";
case SHT_MIPS_SHDR: return "MIPS_SHDR";
case SHT_MIPS_FDESC: return "MIPS_FDESC";
case SHT_MIPS_EXTSYM: return "MIPS_EXTSYM";
case SHT_MIPS_DENSE: return "MIPS_DENSE";
case SHT_MIPS_PDESC: return "MIPS_PDESC";
case SHT_MIPS_LOCSYM: return "MIPS_LOCSYM";
case SHT_MIPS_AUXSYM: return "MIPS_AUXSYM";
case SHT_MIPS_OPTSYM: return "MIPS_OPTSYM";
case SHT_MIPS_LOCSTR: return "MIPS_LOCSTR";
case SHT_MIPS_LINE: return "MIPS_LINE";
case SHT_MIPS_RFDESC: return "MIPS_RFDESC";
case SHT_MIPS_DELTASYM: return "MIPS_DELTASYM";
case SHT_MIPS_DELTAINST: return "MIPS_DELTAINST";
case SHT_MIPS_DELTACLASS: return "MIPS_DELTACLASS";
case SHT_MIPS_DWARF: return "MIPS_DWARF";
case SHT_MIPS_DELTADECL: return "MIPS_DELTADECL";
case SHT_MIPS_SYMBOL_LIB: return "MIPS_SYMBOL_LIB";
case SHT_MIPS_EVENTS: return "MIPS_EVENTS";
case SHT_MIPS_TRANSLATE: return "MIPS_TRANSLATE";
case SHT_MIPS_PIXIE: return "MIPS_PIXIE";
case SHT_MIPS_XLATE: return "MIPS_XLATE";
case SHT_MIPS_XLATE_DEBUG: return "MIPS_XLATE_DEBUG";
case SHT_MIPS_WHIRL: return "MIPS_WHIRL";
case SHT_MIPS_EH_REGION: return "MIPS_EH_REGION";
case SHT_MIPS_XLATE_OLD: return "MIPS_XLATE_OLD";
case SHT_MIPS_PDR_EXCEPTION: return "MIPS_PDR_EXCEPTION";
default:
break;
}
return NULL;
}
static const char *
get_section_type_name (sh_type)
unsigned int sh_type;
{
static char buff [32];
switch (sh_type)
{
case SHT_NULL: return "NULL";
case SHT_PROGBITS: return "PROGBITS";
case SHT_SYMTAB: return "SYMTAB";
case SHT_STRTAB: return "STRTAB";
case SHT_RELA: return "RELA";
case SHT_HASH: return "HASH";
case SHT_DYNAMIC: return "DYNAMIC";
case SHT_NOTE: return "NOTE";
case SHT_NOBITS: return "NOBITS";
case SHT_REL: return "REL";
case SHT_SHLIB: return "SHLIB";
case SHT_DYNSYM: return "DYNSYM";
case SHT_GNU_verdef: return "VERDEF";
case SHT_GNU_verneed: return "VERNEED";
case SHT_GNU_versym: return "VERSYM";
case 0x6ffffff0: return "VERSYM";
case 0x6ffffffc: return "VERDEF";
case 0x7ffffffd: return "AUXILIARY";
case 0x7fffffff: return "FILTER";
default:
if ((sh_type >= SHT_LOPROC) && (sh_type <= SHT_HIPROC))
{
const char * result;
switch (elf_header.e_machine)
{
case EM_MIPS:
case EM_MIPS_RS4_BE:
result = get_mips_section_type_name (sh_type);
break;
default:
result = NULL;
break;
}
if (result != NULL)
return result;
sprintf (buff, "SHT_LOPROC+%x", sh_type - SHT_LOPROC);
}
else if ((sh_type >= SHT_LOOS) && (sh_type <= SHT_HIOS))
sprintf (buff, "SHT_LOOS+%x", sh_type - SHT_LOOS);
else if ((sh_type >= SHT_LOUSER) && (sh_type <= SHT_HIUSER))
sprintf (buff, "SHT_LOUSER+%x", sh_type - SHT_LOUSER);
else
sprintf (buff, _("<unknown>: %x"), sh_type);
return buff;
}
}
struct option options [] =
{
{"all", no_argument, 0, 'a'},
{"file-header", no_argument, 0, 'h'},
{"program-headers", no_argument, 0, 'l'},
{"headers", no_argument, 0, 'e'},
{"histogram", no_argument, & do_histogram, 1},
{"segments", no_argument, 0, 'l'},
{"sections", no_argument, 0, 'S'},
{"section-headers", no_argument, 0, 'S'},
{"symbols", no_argument, 0, 's'},
{"syms", no_argument, 0, 's'},
{"relocs", no_argument, 0, 'r'},
{"dynamic", no_argument, 0, 'd'},
{"version-info", no_argument, 0, 'V'},
{"use-dynamic", no_argument, 0, 'D'},
{"hex-dump", required_argument, 0, 'x'},
{"debug-dump", optional_argument, 0, 'w'},
#ifdef SUPPORT_DISASSEMBLY
{"instruction-dump", required_argument, 0, 'i'},
#endif
{"version", no_argument, 0, 'v'},
{"help", no_argument, 0, 'H'},
{0, no_argument, 0, 0}
};
static void
usage ()
{
fprintf (stdout, _("Usage: readelf {options} elf-file(s)\n"));
fprintf (stdout, _(" Options are:\n"));
fprintf (stdout, _(" -a or --all Equivalent to: -h -l -S -s -r -d -V --histogram\n"));
fprintf (stdout, _(" -h or --file-header Display the ELF file header\n"));
fprintf (stdout, _(" -l or --program-headers or --segments\n"));
fprintf (stdout, _(" Display the program headers\n"));
fprintf (stdout, _(" -S or --section-headers or --sections\n"));
fprintf (stdout, _(" Display the sections' header\n"));
fprintf (stdout, _(" -e or --headers Equivalent to: -h -l -S\n"));
fprintf (stdout, _(" -s or --syms or --symbols Display the symbol table\n"));
fprintf (stdout, _(" -r or --relocs Display the relocations (if present)\n"));
fprintf (stdout, _(" -d or --dynamic Display the dynamic segment (if present)\n"));
fprintf (stdout, _(" -V or --version-info Display the version sections (if present)\n"));
fprintf (stdout, _(" -D or --use-dynamic Use the dynamic section info when displaying symbols\n"));
fprintf (stdout, _(" -x <number> or --hex-dump=<number>\n"));
fprintf (stdout, _(" Dump the contents of section <number>\n"));
fprintf (stdout, _(" -w[liapr] or --debug-dump[=line,=info,=abbrev,=pubnames,=ranges]\n"));
fprintf (stdout, _(" Display the contents of DWARF2 debug sections\n"));
#ifdef SUPPORT_DISASSEMBLY
fprintf (stdout, _(" -i <number> or --instruction-dump=<number>\n"));
fprintf (stdout, _(" Disassemble the contents of section <number>\n"));
#endif
fprintf (stdout, _(" --histogram Display histogram of bucket list lengths\n"));
fprintf (stdout, _(" -v or --version Display the version number of readelf\n"));
fprintf (stdout, _(" -H or --help Display this information\n"));
fprintf (stdout, _("Report bugs to bug-gnu-utils@gnu.org\n"));
exit (0);
}
static void
request_dump (section, type)
unsigned int section;
char type;
{
if (section >= num_dump_sects)
{
char * new_dump_sects;
new_dump_sects = (char *) calloc (section + 1, 1);
if (new_dump_sects == NULL)
error (_("Out of memory allocating dump request table."));
else
{
/* Copy current flag settings. */
memcpy (new_dump_sects, dump_sects, num_dump_sects);
free (dump_sects);
dump_sects = new_dump_sects;
num_dump_sects = section + 1;
}
}
if (dump_sects)
dump_sects [section] |= type;
return;
}
static void
parse_args (argc, argv)
int argc;
char ** argv;
{
int c;
if (argc < 2)
usage ();
while ((c = getopt_long
(argc, argv, "ersahldSDw::x:i:vV", options, NULL)) != EOF)
{
char * cp;
int section;
switch (c)
{
case 0:
/* Long options. */
break;
case 'H':
usage ();
break;
case 'a':
do_syms ++;
do_reloc ++;
do_dynamic ++;
do_header ++;
do_sections ++;
do_segments ++;
do_version ++;
do_histogram ++;
break;
case 'e':
do_header ++;
do_sections ++;
do_segments ++;
break;
case 'D':
do_using_dynamic ++;
break;
case 'r':
do_reloc ++;
break;
case 'h':
do_header ++;
break;
case 'l':
do_segments ++;
break;
case 's':
do_syms ++;
break;
case 'S':
do_sections ++;
break;
case 'd':
do_dynamic ++;
break;
case 'x':
do_dump ++;
section = strtoul (optarg, & cp, 0);
if (! * cp && section >= 0)
{
request_dump (section, HEX_DUMP);
break;
}
goto oops;
case 'w':
do_dump ++;
if (optarg == 0)
do_debugging = 1;
else
{
do_debugging = 0;
switch (optarg[0])
{
case 'i':
case 'I':
do_debug_info = 1;
break;
case 'a':
case 'A':
do_debug_abbrevs = 1;
break;
case 'l':
case 'L':
do_debug_lines = 1;
break;
case 'p':
case 'P':
do_debug_pubnames = 1;
break;
case 'r':
case 'R':
do_debug_aranges = 1;
break;
default:
warn (_("Unrecognised debug option '%s'\n"), optarg);
break;
}
}
break;
#ifdef SUPPORT_DISASSEMBLY
case 'i':
do_dump ++;
section = strtoul (optarg, & cp, 0);
if (! * cp && section >= 0)
{
request_dump (section, DISASS_DUMP);
break;
}
goto oops;
#endif
case 'v':
print_version (program_name);
break;
case 'V':
do_version ++;
break;
default:
oops:
/* xgettext:c-format */
error (_("Invalid option '-%c'\n"), c);
/* Drop through. */
case '?':
usage ();
}
}
if (!do_dynamic && !do_syms && !do_reloc && !do_sections
&& !do_segments && !do_header && !do_dump && !do_version
&& !do_histogram && !do_debugging)
usage ();
else if (argc < 3)
{
warn (_("Nothing to do.\n"));
usage();
}
}
static const char *
get_elf_class (elf_class)
unsigned char elf_class;
{
static char buff [32];
switch (elf_class)
{
case ELFCLASSNONE: return _("none");
case ELFCLASS32: return _("ELF32");
case ELFCLASS64: return _("ELF64");
default:
sprintf (buff, _("<unknown: %lx>"), elf_class);
return buff;
}
}
static const char *
get_data_encoding (encoding)
unsigned char encoding;
{
static char buff [32];
switch (encoding)
{
case ELFDATANONE: return _("none");
case ELFDATA2LSB: return _("2's complement, little endian");
case ELFDATA2MSB: return _("2's complement, big endian");
default:
sprintf (buff, _("<unknown: %lx>"), encoding);
return buff;
}
}
static const char *
get_osabi_name (osabi)
unsigned char osabi;
{
static char buff [32];
switch (osabi)
{
case ELFOSABI_SYSV: return _("UNIX - System V");
case ELFOSABI_HPUX: return _("UNIX - HP-UX");
case ELFOSABI_STANDALONE: return _("Standalone App");
default:
sprintf (buff, _("<unknown: %lx>"), osabi);
return buff;
}
}
/* Decode the data held in 'elf_header'. */
static int
process_file_header ()
{
if ( elf_header.e_ident [EI_MAG0] != ELFMAG0
|| elf_header.e_ident [EI_MAG1] != ELFMAG1
|| elf_header.e_ident [EI_MAG2] != ELFMAG2
|| elf_header.e_ident [EI_MAG3] != ELFMAG3)
{
error
(_("Not an ELF file - it has the wrong magic bytes at the start\n"));
return 0;
}
if (do_header)
{
int i;
printf (_("ELF Header:\n"));
printf (_(" Magic: "));
for (i = 0; i < EI_NIDENT; i ++)
printf ("%2.2x ", elf_header.e_ident [i]);
printf ("\n");
printf (_(" Class: %s\n"),
get_elf_class (elf_header.e_ident [EI_CLASS]));
printf (_(" Data: %s\n"),
get_data_encoding (elf_header.e_ident [EI_DATA]));
printf (_(" Version: %d %s\n"),
elf_header.e_ident [EI_VERSION],
elf_header.e_ident [EI_VERSION] == EV_CURRENT ? "(current)" :
elf_header.e_ident [EI_VERSION] != EV_NONE ? "<unknown: %lx>" : "",
elf_header.e_ident [EI_VERSION]);
printf (_(" OS/ABI: %s\n"),
get_osabi_name (elf_header.e_ident [EI_OSABI]));
printf (_(" ABI Version: %d\n"),
elf_header.e_ident [EI_ABIVERSION]);
printf (_(" Type: %s\n"),
get_file_type (elf_header.e_type));
printf (_(" Machine: %s\n"),
get_machine_name (elf_header.e_machine));
printf (_(" Version: 0x%lx\n"),
(unsigned long) elf_header.e_version);
printf (_(" Data: %s\n"),
get_machine_data (elf_header.e_ident [EI_DATA]));
printf (_(" Entry point address: 0x%lx\n"),
(unsigned long) elf_header.e_entry);
printf (_(" Start of program headers: %ld (bytes into file)\n"),
(long) elf_header.e_phoff);
printf (_(" Start of section headers: %ld (bytes into file)\n"),
(long) elf_header.e_shoff);
printf (_(" Flags: 0x%lx%s\n"),
(unsigned long) elf_header.e_flags,
get_machine_flags (elf_header.e_flags, elf_header.e_machine));
printf (_(" Size of this header: %ld (bytes)\n"),
(long) elf_header.e_ehsize);
printf (_(" Size of program headers: %ld (bytes)\n"),
(long) elf_header.e_phentsize);
printf (_(" Number of program headers: %ld\n"),
(long) elf_header.e_phnum);
printf (_(" Size of section headers: %ld (bytes)\n"),
(long) elf_header.e_shentsize);
printf (_(" Number of section headers: %ld\n"),
(long) elf_header.e_shnum);
printf (_(" Section header string table index: %ld\n"),
(long) elf_header.e_shstrndx);
}
/* Test class after dumping header so that at least the header can be
display on 64 bit binaries. */
binary_class = elf_header.e_ident [EI_CLASS];
if (binary_class != ELFCLASS32)
{
error (_("Not a 32 bit ELF file\n"));
return 0;
}
return 1;
}
static int
process_program_headers (file)
FILE * file;
{
Elf32_External_Phdr * phdrs;
Elf32_Internal_Phdr * program_headers;
Elf32_Internal_Phdr * segment;
unsigned int i;
if (elf_header.e_phnum == 0)
{
if (do_segments)
printf (_("\nThere are no program headers in this file.\n"));
return 1;
}
if (do_segments && !do_header)
{
printf (_("\nElf file is %s\n"), get_file_type (elf_header.e_type));
printf (_("Entry point 0x%lx\n"), (unsigned long) elf_header.e_entry);
printf (_("There are %d program headers, starting at offset %lx:\n"),
elf_header.e_phnum, (unsigned long) elf_header.e_phoff);
}
GET_DATA_ALLOC (elf_header.e_phoff,
elf_header.e_phentsize * elf_header.e_phnum,
phdrs, Elf32_External_Phdr *, "program headers");
program_headers = (Elf32_Internal_Phdr *) malloc
(elf_header.e_phnum * sizeof (Elf32_Internal_Phdr));
if (program_headers == NULL)
{
error (_("Out of memory\n"));
return 0;
}
for (i = 0, segment = program_headers;
i < elf_header.e_phnum;
i ++, segment ++)
{
segment->p_type = BYTE_GET (phdrs[i].p_type);
segment->p_offset = BYTE_GET (phdrs[i].p_offset);
segment->p_vaddr = BYTE_GET (phdrs[i].p_vaddr);
segment->p_paddr = BYTE_GET (phdrs[i].p_paddr);
segment->p_filesz = BYTE_GET (phdrs[i].p_filesz);
segment->p_memsz = BYTE_GET (phdrs[i].p_memsz);
segment->p_flags = BYTE_GET (phdrs[i].p_flags);
segment->p_align = BYTE_GET (phdrs[i].p_align);
}
free (phdrs);
if (do_segments)
{
printf
(_("\nProgram Header%s:\n"), elf_header.e_phnum > 1 ? "s" : "");
printf
(_(" Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align\n"));
}
loadaddr = -1;
dynamic_addr = 0;
dynamic_size = 0;
for (i = 0, segment = program_headers;
i < elf_header.e_phnum;
i ++, segment ++)
{
if (do_segments)
{
printf (" %-11.11s ", get_segment_type (segment->p_type));
printf ("0x%6.6lx ", (unsigned long) segment->p_offset);
printf ("0x%8.8lx ", (unsigned long) segment->p_vaddr);
printf ("0x%8.8lx ", (unsigned long) segment->p_paddr);
printf ("0x%5.5lx ", (unsigned long) segment->p_filesz);
printf ("0x%5.5lx ", (unsigned long) segment->p_memsz);
printf ("%c%c%c ",
(segment->p_flags & PF_R ? 'R' : ' '),
(segment->p_flags & PF_W ? 'W' : ' '),
(segment->p_flags & PF_X ? 'E' : ' '));
printf ("%#lx", (unsigned long) segment->p_align);
}
switch (segment->p_type)
{
case PT_LOAD:
if (loadaddr == -1)
loadaddr = (segment->p_vaddr & 0xfffff000)
- (segment->p_offset & 0xfffff000);
break;
case PT_DYNAMIC:
if (dynamic_addr)
error (_("more than one dynamic segment\n"));
dynamic_addr = segment->p_offset;
dynamic_size = segment->p_filesz;
break;
case PT_INTERP:
if (fseek (file, segment->p_offset, SEEK_SET))
error (_("Unable to find program interpreter name\n"));
else
{
program_interpreter[0] = 0;
fscanf (file, "%63s", program_interpreter);
if (do_segments)
printf (_("\n [Requesting program interpreter: %s]"),
program_interpreter);
}
break;
}
if (do_segments)
putc ('\n', stdout);
}
if (loadaddr == -1)
{
/* Very strange. */
loadaddr = 0;
}
if (do_segments && section_headers != NULL)
{
printf (_("\n Section to Segment mapping:\n"));
printf (_(" Segment Sections...\n"));
assert (string_table != NULL);
for (i = 0; i < elf_header.e_phnum; i++)
{
int j;
Elf32_Internal_Shdr * section;
segment = program_headers + i;
section = section_headers;
printf (" %2.2d ", i);
for (j = 0; j < elf_header.e_shnum; j++, section ++)
{
if (section->sh_size > 0
/* Compare allocated sections by VMA, unallocated
sections by file offset. */
&& (section->sh_flags & SHF_ALLOC
? (section->sh_addr >= segment->p_vaddr
&& section->sh_addr + section->sh_size
<= segment->p_vaddr + segment->p_memsz)
: (section->sh_offset >= segment->p_offset
&& (section->sh_offset + section->sh_size
<= segment->p_offset + segment->p_filesz))))
printf ("%s ", SECTION_NAME (section));
}
putc ('\n',stdout);
}
}
free (program_headers);
return 1;
}
static int
get_section_headers (file)
FILE * file;
{
Elf32_External_Shdr * shdrs;
Elf32_Internal_Shdr * internal;
unsigned int i;
GET_DATA_ALLOC (elf_header.e_shoff,
elf_header.e_shentsize * elf_header.e_shnum,
shdrs, Elf32_External_Shdr *, "section headers");
section_headers = (Elf32_Internal_Shdr *) malloc
(elf_header.e_shnum * sizeof (Elf32_Internal_Shdr));
if (section_headers == NULL)
{
error (_("Out of memory\n"));
return 0;
}
for (i = 0, internal = section_headers;
i < elf_header.e_shnum;
i ++, internal ++)
{
internal->sh_name = BYTE_GET (shdrs[i].sh_name);
internal->sh_type = BYTE_GET (shdrs[i].sh_type);
internal->sh_flags = BYTE_GET (shdrs[i].sh_flags);
internal->sh_addr = BYTE_GET (shdrs[i].sh_addr);
internal->sh_offset = BYTE_GET (shdrs[i].sh_offset);
internal->sh_size = BYTE_GET (shdrs[i].sh_size);
internal->sh_link = BYTE_GET (shdrs[i].sh_link);
internal->sh_info = BYTE_GET (shdrs[i].sh_info);
internal->sh_addralign = BYTE_GET (shdrs[i].sh_addralign);
internal->sh_entsize = BYTE_GET (shdrs[i].sh_entsize);
}
free (shdrs);
return 1;
}
static Elf_Internal_Sym *
get_elf_symbols (file, offset, number)
FILE * file;
unsigned long offset;
unsigned long number;
{
Elf32_External_Sym * esyms;
Elf_Internal_Sym * isyms;
Elf_Internal_Sym * psym;
unsigned int j;
GET_DATA_ALLOC (offset, number * sizeof (Elf32_External_Sym),
esyms, Elf32_External_Sym *, "symbols");
isyms = (Elf_Internal_Sym *) malloc (number * sizeof (Elf_Internal_Sym));
if (isyms == NULL)
{
error (_("Out of memory\n"));
free (esyms);
return NULL;
}
for (j = 0, psym = isyms;
j < number;
j ++, psym ++)
{
psym->st_name = BYTE_GET (esyms[j].st_name);
psym->st_value = BYTE_GET (esyms[j].st_value);
psym->st_size = BYTE_GET (esyms[j].st_size);
psym->st_shndx = BYTE_GET (esyms[j].st_shndx);
psym->st_info = BYTE_GET (esyms[j].st_info);
psym->st_other = BYTE_GET (esyms[j].st_other);
}
free (esyms);
return isyms;
}
static int
process_section_headers (file)
FILE * file;
{
Elf32_Internal_Shdr * section;
int i;
section_headers = NULL;
if (elf_header.e_shnum == 0)
{
if (do_sections)
printf (_("\nThere are no sections in this file.\n"));
return 1;
}
if (do_sections && !do_header)
printf (_("There are %d section headers, starting at offset %lx:\n"),
elf_header.e_shnum, (unsigned long) elf_header.e_shoff);
if (! get_section_headers (file))
return 0;
/* Read in the string table, so that we have names to display. */
section = section_headers + elf_header.e_shstrndx;
if (section->sh_size != 0)
{
unsigned long string_table_offset;
string_table_offset = section->sh_offset;
GET_DATA_ALLOC (section->sh_offset, section->sh_size,
string_table, char *, "string table");
}
/* Scan the sections for the dynamic symbol table
and dynamic string table and debug sections. */
dynamic_symbols = NULL;
dynamic_strings = NULL;
dynamic_syminfo = NULL;
for (i = 0, section = section_headers;
i < elf_header.e_shnum;
i ++, section ++)
{
char * name = SECTION_NAME (section);
if (section->sh_type == SHT_DYNSYM)
{
if (dynamic_symbols != NULL)
{
error (_("File contains multiple dynamic symbol tables\n"));
continue;
}
dynamic_symbols = get_elf_symbols
(file, section->sh_offset,
section->sh_size / section->sh_entsize);
}
else if (section->sh_type == SHT_STRTAB
&& strcmp (name, ".dynstr") == 0)
{
if (dynamic_strings != NULL)
{
error (_("File contains multiple dynamic string tables\n"));
continue;
}
GET_DATA_ALLOC (section->sh_offset, section->sh_size,
dynamic_strings, char *, "dynamic strings");
}
else if ((do_debugging || do_debug_info || do_debug_abbrevs
|| do_debug_lines || do_debug_pubnames || do_debug_aranges)
&& strncmp (name, ".debug_", 7) == 0)
{
name += 7;
if (do_debugging
|| (do_debug_info && (strcmp (name, "info") == 0))
|| (do_debug_abbrevs && (strcmp (name, "abbrev") == 0))
|| (do_debug_lines && (strcmp (name, "line") == 0))
|| (do_debug_pubnames && (strcmp (name, "pubnames") == 0))
|| (do_debug_aranges && (strcmp (name, "aranges") == 0))
)
request_dump (i, DEBUG_DUMP);
}
}
if (! do_sections)
return 1;
printf (_("\nSection Header%s:\n"), elf_header.e_shnum > 1 ? "s" : "");
printf
(_(" [Nr] Name Type Addr Off Size ES Flg Lk Inf Al\n"));
for (i = 0, section = section_headers;
i < elf_header.e_shnum;
i ++, section ++)
{
printf (" [%2d] %-17.17s %-15.15s ",
i,
SECTION_NAME (section),
get_section_type_name (section->sh_type));
printf ( "%8.8lx %6.6lx %6.6lx %2.2lx",
(unsigned long) section->sh_addr,
(unsigned long) section->sh_offset,
(unsigned long) section->sh_size,
(unsigned long) section->sh_entsize);
printf (" %c%c%c %2ld %3lx %ld\n",
(section->sh_flags & SHF_WRITE ? 'W' : ' '),
(section->sh_flags & SHF_ALLOC ? 'A' : ' '),
(section->sh_flags & SHF_EXECINSTR ? 'X' : ' '),
(unsigned long) section->sh_link,
(unsigned long) section->sh_info,
(unsigned long) section->sh_addralign);
}
return 1;
}
/* Process the reloc section. */
static int
process_relocs (file)
FILE * file;
{
unsigned long rel_size;
unsigned long rel_offset;
if (!do_reloc)
return 1;
if (do_using_dynamic)
{
int is_rela;
rel_size = 0;
rel_offset = 0;
if (dynamic_info[DT_REL])
{
rel_offset = dynamic_info[DT_REL];
rel_size = dynamic_info[DT_RELSZ];
is_rela = FALSE;
}
else if (dynamic_info [DT_RELA])
{
rel_offset = dynamic_info[DT_RELA];
rel_size = dynamic_info[DT_RELASZ];
is_rela = TRUE;
}
else if (dynamic_info[DT_JMPREL])
{
rel_offset = dynamic_info[DT_JMPREL];
rel_size = dynamic_info[DT_PLTRELSZ];
switch (dynamic_info[DT_PLTREL])
{
case DT_REL:
is_rela = FALSE;
break;
case DT_RELA:
is_rela = TRUE;
break;
default:
is_rela = UNKNOWN;
break;
}
}
if (rel_size)
{
printf
(_("\nRelocation section at offset 0x%lx contains %ld bytes:\n"),
rel_offset, rel_size);
dump_relocations (file, rel_offset - loadaddr, rel_size,
dynamic_symbols, dynamic_strings, is_rela);
}
else
printf (_("\nThere are no dynamic relocations in this file.\n"));
}
else
{
Elf32_Internal_Shdr * section;
unsigned long i;
int found = 0;
for (i = 0, section = section_headers;
i < elf_header.e_shnum;
i++, section ++)
{
if ( section->sh_type != SHT_RELA
&& section->sh_type != SHT_REL)
continue;
rel_offset = section->sh_offset;
rel_size = section->sh_size;
if (rel_size)
{
Elf32_Internal_Shdr * strsec;
Elf32_Internal_Shdr * symsec;
Elf_Internal_Sym * symtab;
char * strtab;
int is_rela;
printf (_("\nRelocation section "));
if (string_table == NULL)
{
printf ("%d", section->sh_name);
}
else
{
printf ("'%s'", SECTION_NAME (section));
}
printf (_(" at offset 0x%lx contains %lu entries:\n"),
rel_offset, (unsigned long) (rel_size / section->sh_entsize));
symsec = section_headers + section->sh_link;
symtab = get_elf_symbols (file, symsec->sh_offset,
symsec->sh_size / symsec->sh_entsize);
if (symtab == NULL)
continue;
strsec = section_headers + symsec->sh_link;
GET_DATA_ALLOC (strsec->sh_offset, strsec->sh_size, strtab,
char *, "string table");
is_rela = section->sh_type == SHT_RELA;
dump_relocations (file, rel_offset, rel_size, symtab, strtab, is_rela);
free (strtab);
free (symtab);
found = 1;
}
}
if (! found)
printf (_("\nThere are no relocations in this file.\n"));
}
return 1;
}
static void
dynamic_segment_mips_val (entry)
Elf_Internal_Dyn * entry;
{
switch (entry->d_tag)
{
case DT_MIPS_FLAGS:
if (entry->d_un.d_val == 0)
printf ("NONE\n");
else
{
static const char * opts[] =
{
"QUICKSTART", "NOTPOT", "NO_LIBRARY_REPLACEMENT",
"NO_MOVE", "SGI_ONLY", "GUARANTEE_INIT", "DELTA_C_PLUS_PLUS",
"GUARANTEE_START_INIT", "PIXIE", "DEFAULT_DELAY_LOAD",
"REQUICKSTART", "REQUICKSTARTED", "CORD", "NO_UNRES_UNDEF",
"RLD_ORDER_SAFE"
};
unsigned int cnt;
int first = 1;
for (cnt = 0; cnt < NUM_ELEM (opts); ++ cnt)
if (entry->d_un.d_val & (1 << cnt))
{
printf ("%s%s", first ? "" : " ", opts[cnt]);
first = 0;
}
puts ("");
}
break;
case DT_MIPS_IVERSION:
if (dynamic_strings != NULL)
printf ("Interface Version: %s\n",
dynamic_strings + entry->d_un.d_val);
else
printf ("%ld\n", (long) entry->d_un.d_ptr);
break;
case DT_MIPS_TIME_STAMP:
{
char timebuf[20];
time_t time = entry->d_un.d_val;
strftime (timebuf, 20, "%Y-%m-%dT%H:%M:%S", gmtime (&time));
printf ("Time Stamp: %s\n", timebuf);
}
break;
case DT_MIPS_RLD_VERSION:
case DT_MIPS_LOCAL_GOTNO:
case DT_MIPS_CONFLICTNO:
case DT_MIPS_LIBLISTNO:
case DT_MIPS_SYMTABNO:
case DT_MIPS_UNREFEXTNO:
case DT_MIPS_HIPAGENO:
case DT_MIPS_DELTA_CLASS_NO:
case DT_MIPS_DELTA_INSTANCE_NO:
case DT_MIPS_DELTA_RELOC_NO:
case DT_MIPS_DELTA_SYM_NO:
case DT_MIPS_DELTA_CLASSSYM_NO:
case DT_MIPS_COMPACT_SIZE:
printf ("%ld\n", (long) entry->d_un.d_ptr);
break;
default:
printf ("%#lx\n", (long) entry->d_un.d_ptr);
}
}
/* Parse the dynamic segment */
static int
process_dynamic_segment (file)
FILE * file;
{
Elf_Internal_Dyn * entry;
Elf32_External_Dyn * edyn;
unsigned int i;
if (dynamic_size == 0)
{
if (do_dynamic)
printf (_("\nThere is no dynamic segment in this file.\n"));
return 1;
}
GET_DATA_ALLOC (dynamic_addr, dynamic_size,
edyn, Elf32_External_Dyn *, "dynamic segment");
/* SGI's ELF has more than one section in the DYNAMIC segment. Determine
how large .dynamic is now. We can do this even before the byte
swapping since the DT_NULL tag is recognizable. */
dynamic_size = 0;
while (*(Elf32_Word *) edyn[dynamic_size++].d_tag != DT_NULL)
;
dynamic_segment = (Elf_Internal_Dyn *)
malloc (dynamic_size * sizeof (Elf_Internal_Dyn));
if (dynamic_segment == NULL)
{
error (_("Out of memory\n"));
free (edyn);
return 0;
}
for (i = 0, entry = dynamic_segment;
i < dynamic_size;
i ++, entry ++)
{
entry->d_tag = BYTE_GET (edyn [i].d_tag);
entry->d_un.d_val = BYTE_GET (edyn [i].d_un.d_val);
}
free (edyn);
/* Find the appropriate symbol table. */
if (dynamic_symbols == NULL)
{
for (i = 0, entry = dynamic_segment;
i < dynamic_size;
++i, ++ entry)
{
unsigned long offset;
long num_syms;
if (entry->d_tag != DT_SYMTAB)
continue;
dynamic_info[DT_SYMTAB] = entry->d_un.d_val;
/* Since we do not know how big the symbol table is,
we default to reading in the entire file (!) and
processing that. This is overkill, I know, but it
should work. */
offset = entry->d_un.d_val - loadaddr;
if (fseek (file, 0, SEEK_END))
error (_("Unable to seek to end of file!"));
num_syms = (ftell (file) - offset) / sizeof (Elf32_External_Sym);
if (num_syms < 1)
{
error (_("Unable to determine the number of symbols to load\n"));
continue;
}
dynamic_symbols = get_elf_symbols (file, offset, num_syms);
}
}
/* Similarly find a string table. */
if (dynamic_strings == NULL)
{
for (i = 0, entry = dynamic_segment;
i < dynamic_size;
++i, ++ entry)
{
unsigned long offset;
long str_tab_len;
if (entry->d_tag != DT_STRTAB)
continue;
dynamic_info[DT_STRTAB] = entry->d_un.d_val;
/* Since we do not know how big the string table is,
we default to reading in the entire file (!) and
processing that. This is overkill, I know, but it
should work. */
offset = entry->d_un.d_val - loadaddr;
if (fseek (file, 0, SEEK_END))
error (_("Unable to seek to end of file\n"));
str_tab_len = ftell (file) - offset;
if (str_tab_len < 1)
{
error
(_("Unable to determine the length of the dynamic string table\n"));
continue;
}
GET_DATA_ALLOC (offset, str_tab_len, dynamic_strings, char *,
"dynamic string table");
break;
}
}
/* And find the syminfo section if available. */
if (dynamic_syminfo == NULL)
{
unsigned int syminsz = 0;
for (i = 0, entry = dynamic_segment;
i < dynamic_size;
++i, ++ entry)
{
if (entry->d_tag == DT_SYMINENT)
{
/* Note: these braces are necessary to avoid a syntax
error from the SunOS4 C compiler. */
assert (sizeof (Elf_External_Syminfo) == entry->d_un.d_val);
}
else if (entry->d_tag == DT_SYMINSZ)
syminsz = entry->d_un.d_val;
else if (entry->d_tag == DT_SYMINFO)
dynamic_syminfo_offset = entry->d_un.d_val - loadaddr;
}
if (dynamic_syminfo_offset != 0 && syminsz != 0)
{
Elf_External_Syminfo *extsyminfo;
Elf_Internal_Syminfo *syminfo;
/* There is a syminfo section. Read the data. */
GET_DATA_ALLOC (dynamic_syminfo_offset, syminsz, extsyminfo,
Elf_External_Syminfo *, "symbol information");
dynamic_syminfo = (Elf_Internal_Syminfo *) malloc (syminsz);
if (dynamic_syminfo == NULL)
{
error (_("Out of memory\n"));
return 0;
}
dynamic_syminfo_nent = syminsz / sizeof (Elf_External_Syminfo);
for (i = 0, syminfo = dynamic_syminfo; i < dynamic_syminfo_nent;
++i, ++syminfo)
{
syminfo->si_boundto = BYTE_GET (extsyminfo[i].si_boundto);
syminfo->si_flags = BYTE_GET (extsyminfo[i].si_flags);
}
free (extsyminfo);
}
}
if (do_dynamic && dynamic_addr)
printf (_("\nDynamic segment at offset 0x%x contains %d entries:\n"),
dynamic_addr, dynamic_size);
if (do_dynamic)
printf (_(" Tag Type Name/Value\n"));
for (i = 0, entry = dynamic_segment;
i < dynamic_size;
i++, entry ++)
{
if (do_dynamic)
printf (_(" 0x%-8.8lx (%s)%*s"),
(unsigned long) entry->d_tag,
get_dynamic_type (entry->d_tag),
27 - strlen (get_dynamic_type (entry->d_tag)),
" ");
switch (entry->d_tag)
{
case DT_AUXILIARY:
case DT_FILTER:
if (do_dynamic)
{
if (entry->d_tag == DT_AUXILIARY)
printf (_("Auxiliary library"));
else
printf (_("Filter library"));
if (dynamic_strings)
printf (": [%s]\n", dynamic_strings + entry->d_un.d_val);
else
printf (": %#lx\n", (long) entry->d_un.d_val);
}
break;
case DT_FEATURE_1:
if (do_dynamic)
{
printf (_("Flags:"));
if (entry->d_un.d_val == 0)
printf (_(" None\n"));
else
{
unsigned long int val = entry->d_un.d_val;
if (val & DTF_1_PARINIT)
{
printf (" PARINIT");
val ^= DTF_1_PARINIT;
}
if (val != 0)
printf (" %lx", val);
puts ("");
}
}
break;
case DT_POSFLAG_1:
if (do_dynamic)
{
printf (_("Flags:"));
if (entry->d_un.d_val == 0)
printf (_(" None\n"));
else
{
unsigned long int val = entry->d_un.d_val;
if (val & DF_P1_LAZYLOAD)
{
printf (" LAZYLOAD");
val ^= DF_P1_LAZYLOAD;
}
if (val & DF_P1_GROUPPERM)
{
printf (" GROUPPERM");
val ^= DF_P1_GROUPPERM;
}
if (val != 0)
printf (" %lx", val);
puts ("");
}
}
break;
case DT_FLAGS_1:
if (do_dynamic)
{
printf (_("Flags:"));
if (entry->d_un.d_val == 0)
printf (_(" None\n"));
else
{
unsigned long int val = entry->d_un.d_val;
if (val & DF_1_NOW)
{
printf (" NOW");
val ^= DF_1_NOW;
}
if (val & DF_1_GLOBAL)
{
printf (" GLOBAL");
val ^= DF_1_GLOBAL;
}
if (val & DF_1_GROUP)
{
printf (" GROUP");
val ^= DF_1_GROUP;
}
if (val & DF_1_NODELETE)
{
printf (" NODELETE");
val ^= DF_1_NODELETE;
}
if (val & DF_1_LOADFLTR)
{
printf (" LOADFLTR");
val ^= DF_1_LOADFLTR;
}
if (val & DF_1_INITFIRST)
{
printf (" INITFIRST");
val ^= DF_1_INITFIRST;
}
if (val & DF_1_NOOPEN)
{
printf (" NOOPEN");
val ^= DF_1_NOOPEN;
}
if (val & DF_1_ORIGIN)
{
printf (" ORIGIN");
val ^= DF_1_ORIGIN;
}
if (val & DF_1_DIRECT)
{
printf (" DIRECT");
val ^= DF_1_DIRECT;
}
if (val & DF_1_TRANS)
{
printf (" TRANS");
val ^= DF_1_TRANS;
}
if (val & DF_1_INTERPOSE)
{
printf (" INTERPOSE");
val ^= DF_1_INTERPOSE;
}
if (val != 0)
printf (" %lx", val);
puts ("");
}
}
break;
case DT_PLTREL:
if (do_dynamic)
puts (get_dynamic_type (entry->d_un.d_val));
break;
case DT_NULL :
case DT_NEEDED :
case DT_PLTGOT :
case DT_HASH :
case DT_STRTAB :
case DT_SYMTAB :
case DT_RELA :
case DT_INIT :
case DT_FINI :
case DT_SONAME :
case DT_RPATH :
case DT_SYMBOLIC:
case DT_REL :
case DT_DEBUG :
case DT_TEXTREL :
case DT_JMPREL :
dynamic_info[entry->d_tag] = entry->d_un.d_val;
if (do_dynamic)
{
char * name;
if (dynamic_strings == NULL)
name = NULL;
else
name = dynamic_strings + entry->d_un.d_val;
if (name)
{
switch (entry->d_tag)
{
case DT_NEEDED:
printf (_("Shared library: [%s]"), name);
if (strcmp (name, program_interpreter))
printf ("\n");
else
printf (_(" program interpreter\n"));
break;
case DT_SONAME:
printf (_("Library soname: [%s]\n"), name);
break;
case DT_RPATH:
printf (_("Library rpath: [%s]\n"), name);
break;
default:
printf ("%#lx\n", (long) entry->d_un.d_val);
}
}
else
printf ("%#lx\n", (long) entry->d_un.d_val);
}
break;
case DT_PLTRELSZ:
case DT_RELASZ :
case DT_STRSZ :
case DT_RELSZ :
case DT_RELAENT :
case DT_SYMENT :
case DT_RELENT :
case DT_PLTPADSZ:
case DT_MOVEENT :
case DT_MOVESZ :
case DT_INIT_ARRAYSZ:
case DT_FINI_ARRAYSZ:
if (do_dynamic)
printf ("%lu (bytes)\n", (unsigned long) entry->d_un.d_val);
break;
case DT_VERDEFNUM:
case DT_VERNEEDNUM:
case DT_RELACOUNT:
case DT_RELCOUNT:
if (do_dynamic)
printf ("%lu\n", (unsigned long) entry->d_un.d_val);
break;
case DT_SYMINSZ:
case DT_SYMINENT:
case DT_SYMINFO:
case DT_USED:
case DT_INIT_ARRAY:
case DT_FINI_ARRAY:
if (do_dynamic)
{
if (dynamic_strings != NULL && entry->d_tag == DT_USED)
{
char * name;
name = dynamic_strings + entry->d_un.d_val;
if (* name)
{
printf (_("Not needed object: [%s]\n"), name);
break;
}
}
printf ("%#lx\n", (long) entry->d_un.d_val);
}
break;
case DT_BIND_NOW:
/* The value of this entry is ignored. */
break;
default:
if ((entry->d_tag >= DT_VERSYM) && (entry->d_tag <= DT_VERNEEDNUM))
version_info [DT_VERSIONTAGIDX (entry->d_tag)] =
entry->d_un.d_val;
if (do_dynamic)
{
switch (elf_header.e_machine)
{
case EM_MIPS:
case EM_MIPS_RS4_BE:
dynamic_segment_mips_val (entry);
break;
default:
printf ("%#lx\n", (long) entry->d_un.d_ptr);
}
}
break;
}
}
return 1;
}
static char *
get_ver_flags (flags)
unsigned int flags;
{
static char buff [32];
buff[0] = 0;
if (flags == 0)
return _("none");
if (flags & VER_FLG_BASE)
strcat (buff, "BASE ");
if (flags & VER_FLG_WEAK)
{
if (flags & VER_FLG_BASE)
strcat (buff, "| ");
strcat (buff, "WEAK ");
}
if (flags & ~(VER_FLG_BASE | VER_FLG_WEAK))
strcat (buff, "| <unknown>");
return buff;
}
/* Display the contents of the version sections. */
static int
process_version_sections (file)
FILE * file;
{
Elf32_Internal_Shdr * section;
unsigned i;
int found = 0;
if (! do_version)
return 1;
for (i = 0, section = section_headers;
i < elf_header.e_shnum;
i++, section ++)
{
switch (section->sh_type)
{
case SHT_GNU_verdef:
{
Elf_External_Verdef * edefs;
unsigned int idx;
unsigned int cnt;
found = 1;
printf
(_("\nVersion definition section '%s' contains %ld entries:\n"),
SECTION_NAME (section), section->sh_info);
printf (_(" Addr: 0x"));
printf_vma (section->sh_addr);
printf (_(" Offset: %#08lx Link: %lx (%s)\n"),
(unsigned long) section->sh_offset, section->sh_link,
SECTION_NAME (section_headers + section->sh_link));
GET_DATA_ALLOC (section->sh_offset, section->sh_size,
edefs, Elf_External_Verdef *,
"version definition section");
for (idx = cnt = 0; cnt < section->sh_info; ++ cnt)
{
char * vstart;
Elf_External_Verdef * edef;
Elf_Internal_Verdef ent;
Elf_External_Verdaux * eaux;
Elf_Internal_Verdaux aux;
int j;
int isum;
vstart = ((char *) edefs) + idx;
edef = (Elf_External_Verdef *) vstart;
ent.vd_version = BYTE_GET (edef->vd_version);
ent.vd_flags = BYTE_GET (edef->vd_flags);
ent.vd_ndx = BYTE_GET (edef->vd_ndx);
ent.vd_cnt = BYTE_GET (edef->vd_cnt);
ent.vd_hash = BYTE_GET (edef->vd_hash);
ent.vd_aux = BYTE_GET (edef->vd_aux);
ent.vd_next = BYTE_GET (edef->vd_next);
printf (_(" %#06x: Rev: %d Flags: %s"),
idx, ent.vd_version, get_ver_flags (ent.vd_flags));
printf (_(" Index: %d Cnt: %d "),
ent.vd_ndx, ent.vd_cnt);
vstart += ent.vd_aux;
eaux = (Elf_External_Verdaux *) vstart;
aux.vda_name = BYTE_GET (eaux->vda_name);
aux.vda_next = BYTE_GET (eaux->vda_next);
if (dynamic_strings)
printf (_("Name: %s\n"), dynamic_strings + aux.vda_name);
else
printf (_("Name index: %ld\n"), aux.vda_name);
isum = idx + ent.vd_aux;
for (j = 1; j < ent.vd_cnt; j ++)
{
isum += aux.vda_next;
vstart += aux.vda_next;
eaux = (Elf_External_Verdaux *) vstart;
aux.vda_name = BYTE_GET (eaux->vda_name);
aux.vda_next = BYTE_GET (eaux->vda_next);
if (dynamic_strings)
printf (_(" %#06x: Parent %d: %s\n"),
isum, j, dynamic_strings + aux.vda_name);
else
printf (_(" %#06x: Parent %d, name index: %ld\n"),
isum, j, aux.vda_name);
}
idx += ent.vd_next;
}
free (edefs);
}
break;
case SHT_GNU_verneed:
{
Elf_External_Verneed * eneed;
unsigned int idx;
unsigned int cnt;
found = 1;
printf (_("\nVersion needs section '%s' contains %ld entries:\n"),
SECTION_NAME (section), section->sh_info);
printf (_(" Addr: 0x"));
printf_vma (section->sh_addr);
printf (_(" Offset: %#08lx Link to section: %ld (%s)\n"),
(unsigned long) section->sh_offset, section->sh_link,
SECTION_NAME (section_headers + section->sh_link));
GET_DATA_ALLOC (section->sh_offset, section->sh_size,
eneed, Elf_External_Verneed *,
"version need section");
for (idx = cnt = 0; cnt < section->sh_info; ++cnt)
{
Elf_External_Verneed * entry;
Elf_Internal_Verneed ent;
int j;
int isum;
char * vstart;
vstart = ((char *) eneed) + idx;
entry = (Elf_External_Verneed *) vstart;
ent.vn_version = BYTE_GET (entry->vn_version);
ent.vn_cnt = BYTE_GET (entry->vn_cnt);
ent.vn_file = BYTE_GET (entry->vn_file);
ent.vn_aux = BYTE_GET (entry->vn_aux);
ent.vn_next = BYTE_GET (entry->vn_next);
printf (_(" %#06x: Version: %d"), idx, ent.vn_version);
if (dynamic_strings)
printf (_(" File: %s"), dynamic_strings + ent.vn_file);
else
printf (_(" File: %lx"), ent.vn_file);
printf (_(" Cnt: %d\n"), ent.vn_cnt);
vstart += ent.vn_aux;
for (j = 0, isum = idx + ent.vn_aux; j < ent.vn_cnt; ++j)
{
Elf_External_Vernaux * eaux;
Elf_Internal_Vernaux aux;
eaux = (Elf_External_Vernaux *) vstart;
aux.vna_hash = BYTE_GET (eaux->vna_hash);
aux.vna_flags = BYTE_GET (eaux->vna_flags);
aux.vna_other = BYTE_GET (eaux->vna_other);
aux.vna_name = BYTE_GET (eaux->vna_name);
aux.vna_next = BYTE_GET (eaux->vna_next);
if (dynamic_strings)
printf (_(" %#06x: Name: %s"),
isum, dynamic_strings + aux.vna_name);
else
printf (_(" %#06x: Name index: %lx"),
isum, aux.vna_name);
printf (_(" Flags: %s Version: %d\n"),
get_ver_flags (aux.vna_flags), aux.vna_other);
isum += aux.vna_next;
vstart += aux.vna_next;
}
idx += ent.vn_next;
}
free (eneed);
}
break;
case SHT_GNU_versym:
{
Elf32_Internal_Shdr * link_section;
int total;
int cnt;
unsigned char * edata;
unsigned short * data;
char * strtab;
Elf_Internal_Sym * symbols;
Elf32_Internal_Shdr * string_sec;
link_section = section_headers + section->sh_link;
total = section->sh_size / section->sh_entsize;
found = 1;
symbols = get_elf_symbols
(file, link_section->sh_offset,
link_section->sh_size / link_section->sh_entsize);
string_sec = section_headers + link_section->sh_link;
GET_DATA_ALLOC (string_sec->sh_offset, string_sec->sh_size,
strtab, char *, "version string table");
printf (_("\nVersion symbols section '%s' contains %d entries:\n"),
SECTION_NAME (section), total);
printf (_(" Addr: "));
printf_vma (section->sh_addr);
printf (_(" Offset: %#08lx Link: %lx (%s)\n"),
(unsigned long) section->sh_offset, section->sh_link,
SECTION_NAME (link_section));
GET_DATA_ALLOC (version_info [DT_VERSIONTAGIDX (DT_VERSYM)]
- loadaddr,
total * sizeof (short), edata,
unsigned char *, "version symbol data");
data = (unsigned short *) malloc (total * sizeof (short));
for (cnt = total; cnt --;)
data [cnt] = byte_get (edata + cnt * sizeof (short),
sizeof (short));
free (edata);
for (cnt = 0; cnt < total; cnt += 4)
{
int j, nn;
printf (" %03x:", cnt);
for (j = 0; (j < 4) && (cnt + j) < total; ++j)
switch (data [cnt + j])
{
case 0:
fputs (_(" 0 (*local*) "), stdout);
break;
case 1:
fputs (_(" 1 (*global*) "), stdout);
break;
default:
nn = printf ("%4x%c", data [cnt + j] & 0x7fff,
data [cnt + j] & 0x8000 ? 'h' : ' ');
if (symbols [cnt + j].st_shndx < SHN_LORESERVE
&& section_headers[symbols [cnt + j].st_shndx].sh_type
== SHT_NOBITS)
{
/* We must test both. */
Elf_Internal_Verneed ivn;
unsigned long offset;
offset = version_info [DT_VERSIONTAGIDX (DT_VERNEED)]
- loadaddr;
do
{
Elf_External_Verneed evn;
Elf_External_Vernaux evna;
Elf_Internal_Vernaux ivna;
unsigned long vna_off;
GET_DATA (offset, evn, "version need");
ivn.vn_aux = BYTE_GET (evn.vn_aux);
ivn.vn_next = BYTE_GET (evn.vn_next);
vna_off = offset + ivn.vn_aux;
do
{
GET_DATA (vna_off, evna,
"version need aux (1)");
ivna.vna_next = BYTE_GET (evna.vna_next);
ivna.vna_other = BYTE_GET (evna.vna_other);
vna_off += ivna.vna_next;
}
while (ivna.vna_other != data [cnt + j]
&& ivna.vna_next != 0);
if (ivna.vna_other == data [cnt + j])
{
ivna.vna_name = BYTE_GET (evna.vna_name);
nn += printf ("(%s%-*s",
strtab + ivna.vna_name,
12 - strlen (strtab
+ ivna.vna_name),
")");
break;
}
else if (ivn.vn_next == 0)
{
if (data [cnt + j] != 0x8001)
{
Elf_Internal_Verdef ivd;
Elf_External_Verdef evd;
offset = version_info
[DT_VERSIONTAGIDX (DT_VERDEF)]
- loadaddr;
do
{
GET_DATA (offset, evd,
"version definition");
ivd.vd_next = BYTE_GET (evd.vd_next);
ivd.vd_ndx = BYTE_GET (evd.vd_ndx);
offset += ivd.vd_next;
}
while (ivd.vd_ndx
!= (data [cnt + j] & 0x7fff)
&& ivd.vd_next != 0);
if (ivd.vd_ndx
== (data [cnt + j] & 0x7fff))
{
Elf_External_Verdaux evda;
Elf_Internal_Verdaux ivda;
ivd.vd_aux = BYTE_GET (evd.vd_aux);
GET_DATA (offset + ivd.vd_aux, evda,
"version definition aux");
ivda.vda_name =
BYTE_GET (evda.vda_name);
nn +=
printf ("(%s%-*s",
strtab + ivda.vda_name,
12
- strlen (strtab
+ ivda.vda_name),
")");
}
}
break;
}
else
offset += ivn.vn_next;
}
while (ivn.vn_next);
}
else if (symbols [cnt + j].st_shndx == SHN_UNDEF)
{
Elf_Internal_Verneed ivn;
unsigned long offset;
offset = version_info [DT_VERSIONTAGIDX (DT_VERNEED)]
- loadaddr;
do
{
Elf_Internal_Vernaux ivna;
Elf_External_Verneed evn;
Elf_External_Vernaux evna;
unsigned long a_off;
GET_DATA (offset, evn, "version need");
ivn.vn_aux = BYTE_GET (evn.vn_aux);
ivn.vn_next = BYTE_GET (evn.vn_next);
a_off = offset + ivn.vn_aux;
do
{
GET_DATA (a_off, evna,
"version need aux (2)");
ivna.vna_next = BYTE_GET (evna.vna_next);
ivna.vna_other = BYTE_GET (evna.vna_other);
a_off += ivna.vna_next;
}
while (ivna.vna_other != data [cnt + j]
&& ivna.vna_next != 0);
if (ivna.vna_other == data [cnt + j])
{
ivna.vna_name = BYTE_GET (evna.vna_name);
nn += printf ("(%s%-*s",
strtab + ivna.vna_name,
12 - strlen (strtab
+ ivna.vna_name),
")");
break;
}
offset += ivn.vn_next;
}
while (ivn.vn_next);
}
else if (data [cnt + j] != 0x8001)
{
Elf_Internal_Verdef ivd;
Elf_External_Verdef evd;
unsigned long offset;
offset = version_info
[DT_VERSIONTAGIDX (DT_VERDEF)] - loadaddr;
do
{
GET_DATA (offset, evd, "version def");
ivd.vd_next = BYTE_GET (evd.vd_next);
ivd.vd_ndx = BYTE_GET (evd.vd_ndx);
offset += ivd.vd_next;
}
while (ivd.vd_ndx != (data [cnt + j] & 0x7fff)
&& ivd.vd_next != 0);
if (ivd.vd_ndx == (data [cnt + j] & 0x7fff))
{
Elf_External_Verdaux evda;
Elf_Internal_Verdaux ivda;
ivd.vd_aux = BYTE_GET (evd.vd_aux);
GET_DATA (offset - ivd.vd_next + ivd.vd_aux,
evda, "version def aux");
ivda.vda_name = BYTE_GET (evda.vda_name);
nn += printf ("(%s%-*s",
strtab + ivda.vda_name,
12 - strlen (strtab
+ ivda.vda_name),
")");
}
}
if (nn < 18)
printf ("%*c", 18 - nn, ' ');
}
putchar ('\n');
}
free (data);
free (strtab);
free (symbols);
}
break;
default:
break;
}
}
if (! found)
printf (_("\nNo version information found in this file.\n"));
return 1;
}
static char *
get_symbol_binding (binding)
unsigned int binding;
{
static char buff [32];
switch (binding)
{
case STB_LOCAL: return _("LOCAL");
case STB_GLOBAL: return _("GLOBAL");
case STB_WEAK: return _("WEAK");
default:
if (binding >= STB_LOPROC && binding <= STB_HIPROC)
sprintf (buff, _("<processor specific>: %d"), binding);
else if (binding >= STB_LOOS && binding <= STB_HIOS)
sprintf (buff, _("<OS specific>: %d"), binding);
else
sprintf (buff, _("<unknown>: %d"), binding);
return buff;
}
}
static char *
get_symbol_type (type)
unsigned int type;
{
static char buff [32];
switch (type)
{
case STT_NOTYPE: return _("NOTYPE");
case STT_OBJECT: return _("OBJECT");
case STT_FUNC: return _("FUNC");
case STT_SECTION: return _("SECTION");
case STT_FILE: return _("FILE");
default:
if (type >= STT_LOPROC && type <= STT_HIPROC)
sprintf (buff, _("<processor specific>: %d"), type);
else if (type >= STT_LOOS && type <= STT_HIOS)
sprintf (buff, _("<OS specific>: %d"), type);
else
sprintf (buff, _("<unknown>: %d"), type);
return buff;
}
}
static char *
get_symbol_index_type (type)
unsigned int type;
{
switch (type)
{
case SHN_UNDEF: return "UND";
case SHN_ABS: return "ABS";
case SHN_COMMON: return "COM";
default:
if (type >= SHN_LOPROC && type <= SHN_HIPROC)
return "PRC";
else if (type >= SHN_LORESERVE && type <= SHN_HIRESERVE)
return "RSV";
else if (type >= SHN_LOOS && type <= SHN_HIOS)
return "OS ";
else
{
static char buff [32];
sprintf (buff, "%3d", type);
return buff;
}
}
}
static int *
get_dynamic_data (file, number)
FILE * file;
unsigned int number;
{
char * e_data;
int * i_data;
e_data = (char *) malloc (number * 4);
if (e_data == NULL)
{
error (_("Out of memory\n"));
return NULL;
}
if (fread (e_data, 4, number, file) != number)
{
error (_("Unable to read in dynamic data\n"));
return NULL;
}
i_data = (int *) malloc (number * sizeof (* i_data));
if (i_data == NULL)
{
error (_("Out of memory\n"));
free (e_data);
return NULL;
}
while (number--)
i_data [number] = byte_get (e_data + number * 4, 4);
free (e_data);
return i_data;
}
/* Dump the symbol table */
static int
process_symbol_table (file)
FILE * file;
{
Elf32_Internal_Shdr * section;
char nb [4];
char nc [4];
int nbuckets;
int nchains;
int * buckets = NULL;
int * chains = NULL;
if (! do_syms && !do_histogram)
return 1;
if (dynamic_info[DT_HASH] && ((do_using_dynamic && dynamic_strings != NULL)
|| do_histogram))
{
if (fseek (file, dynamic_info[DT_HASH] - loadaddr, SEEK_SET))
{
error (_("Unable to seek to start of dynamic information"));
return 0;
}
if (fread (nb, sizeof (nb), 1, file) != 1)
{
error (_("Failed to read in number of buckets\n"));
return 0;
}
if (fread (nc, sizeof (nc), 1, file) != 1)
{
error (_("Failed to read in number of chains\n"));
return 0;
}
nbuckets = byte_get (nb, 4);
nchains = byte_get (nc, 4);
buckets = get_dynamic_data (file, nbuckets);
chains = get_dynamic_data (file, nchains);
if (buckets == NULL || chains == NULL)
return 0;
}
if (do_syms
&& dynamic_info[DT_HASH] && do_using_dynamic && dynamic_strings != NULL)
{
int hn;
int si;
printf (_("\nSymbol table for image:\n"));
printf (_(" Num Buc: Value Size Type Bind Ot Ndx Name\n"));
for (hn = 0; hn < nbuckets; hn++)
{
if (! buckets [hn])
continue;
for (si = buckets [hn]; si; si = chains [si])
{
Elf_Internal_Sym * psym;
psym = dynamic_symbols + si;
printf (" %3d %3d: %8lx %5ld %6s %6s %2d ",
si, hn,
(unsigned long) psym->st_value,
(unsigned long) psym->st_size,
get_symbol_type (ELF_ST_TYPE (psym->st_info)),
get_symbol_binding (ELF_ST_BIND (psym->st_info)),
psym->st_other);
printf ("%3.3s", get_symbol_index_type (psym->st_shndx));
printf (" %s\n", dynamic_strings + psym->st_name);
}
}
}
else if (do_syms && !do_using_dynamic)
{
unsigned int i;
for (i = 0, section = section_headers;
i < elf_header.e_shnum;
i++, section++)
{
unsigned int si;
char * strtab;
Elf_Internal_Sym * symtab;
Elf_Internal_Sym * psym;
if ( section->sh_type != SHT_SYMTAB
&& section->sh_type != SHT_DYNSYM)
continue;
printf (_("\nSymbol table '%s' contains %lu entries:\n"),
SECTION_NAME (section),
(unsigned long) (section->sh_size / section->sh_entsize));
fputs (_(" Num: Value Size Type Bind Ot Ndx Name\n"),
stdout);
symtab = get_elf_symbols (file, section->sh_offset,
section->sh_size / section->sh_entsize);
if (symtab == NULL)
continue;
if (section->sh_link == elf_header.e_shstrndx)
strtab = string_table;
else
{
Elf32_Internal_Shdr * string_sec;
string_sec = section_headers + section->sh_link;
GET_DATA_ALLOC (string_sec->sh_offset, string_sec->sh_size,
strtab, char *, "string table");
}
for (si = 0, psym = symtab;
si < section->sh_size / section->sh_entsize;
si ++, psym ++)
{
printf (" %3d: %8lx %5ld %-7s %-6s %2d ",
si,
(unsigned long) psym->st_value,
(unsigned long) psym->st_size,
get_symbol_type (ELF_ST_TYPE (psym->st_info)),
get_symbol_binding (ELF_ST_BIND (psym->st_info)),
psym->st_other);
printf ("%4s", get_symbol_index_type (psym->st_shndx));
printf (" %s", strtab + psym->st_name);
if (section->sh_type == SHT_DYNSYM &&
version_info [DT_VERSIONTAGIDX (DT_VERSYM)] != 0)
{
unsigned char data[2];
unsigned short vers_data;
unsigned long offset;
int is_nobits;
int check_def;
offset = version_info [DT_VERSIONTAGIDX (DT_VERSYM)]
- loadaddr;
GET_DATA (offset + si * sizeof (vers_data), data,
"version data");
vers_data = byte_get (data, 2);
is_nobits = psym->st_shndx < SHN_LORESERVE ?
(section_headers [psym->st_shndx].sh_type == SHT_NOBITS)
: 0;
check_def = (psym->st_shndx != SHN_UNDEF);
if ((vers_data & 0x8000) || vers_data > 1)
{
if (is_nobits || ! check_def)
{
Elf_External_Verneed evn;
Elf_Internal_Verneed ivn;
Elf_Internal_Vernaux ivna;
/* We must test both. */
offset = version_info
[DT_VERSIONTAGIDX (DT_VERNEED)] - loadaddr;
GET_DATA (offset, evn, "version need");
ivn.vn_aux = BYTE_GET (evn.vn_aux);
ivn.vn_next = BYTE_GET (evn.vn_next);
do
{
unsigned long vna_off;
vna_off = offset + ivn.vn_aux;
do
{
Elf_External_Vernaux evna;
GET_DATA (vna_off, evna,
"version need aux (3)");
ivna.vna_other = BYTE_GET (evna.vna_other);
ivna.vna_next = BYTE_GET (evna.vna_next);
ivna.vna_name = BYTE_GET (evna.vna_name);
vna_off += ivna.vna_next;
}
while (ivna.vna_other != vers_data
&& ivna.vna_next != 0);
if (ivna.vna_other == vers_data)
break;
offset += ivn.vn_next;
}
while (ivn.vn_next != 0);
if (ivna.vna_other == vers_data)
{
printf ("@%s (%d)",
strtab + ivna.vna_name, ivna.vna_other);
check_def = 0;
}
else if (! is_nobits)
error (_("bad dynamic symbol"));
else
check_def = 1;
}
if (check_def)
{
if (vers_data != 0x8001)
{
Elf_Internal_Verdef ivd;
Elf_Internal_Verdaux ivda;
Elf_External_Verdaux evda;
unsigned long offset;
offset =
version_info [DT_VERSIONTAGIDX (DT_VERDEF)]
- loadaddr;
do
{
Elf_External_Verdef evd;
GET_DATA (offset, evd, "version def");
ivd.vd_ndx = BYTE_GET (evd.vd_ndx);
ivd.vd_aux = BYTE_GET (evd.vd_aux);
ivd.vd_next = BYTE_GET (evd.vd_next);
offset += ivd.vd_next;
}
while (ivd.vd_ndx != (vers_data & 0x7fff)
&& ivd.vd_next != 0);
offset -= ivd.vd_next;
offset += ivd.vd_aux;
GET_DATA (offset, evda, "version def aux");
ivda.vda_name = BYTE_GET (evda.vda_name);
if (psym->st_name != ivda.vda_name)
printf ((vers_data & 0x8000)
? "@%s" : "@@%s",
strtab + ivda.vda_name);
}
}
}
}
putchar ('\n');
}
free (symtab);
if (strtab != string_table)
free (strtab);
}
}
else if (do_syms)
printf
(_("\nDynamic symbol information is not available for displaying symbols.\n"));
if (do_histogram && buckets != NULL)
{
int *lengths;
int *counts;
int hn;
int si;
int maxlength = 0;
int nzero_counts = 0;
int nsyms = 0;
printf (_("\nHistogram for bucket list length (total of %d buckets):\n"),
nbuckets);
printf (_(" Length Number %% of total Coverage\n"));
lengths = (int *) calloc (nbuckets, sizeof (int));
if (lengths == NULL)
{
error (_("Out of memory"));
return 0;
}
for (hn = 0; hn < nbuckets; ++hn)
{
if (! buckets [hn])
continue;
for (si = buckets[hn]; si; si = chains[si])
{
++nsyms;
if (maxlength < ++lengths[hn])
++maxlength;
}
}
counts = (int *) calloc (maxlength + 1, sizeof (int));
if (counts == NULL)
{
error (_("Out of memory"));
return 0;
}
for (hn = 0; hn < nbuckets; ++hn)
++ counts [lengths [hn]];
printf (" 0 %-10d (%5.1f%%)\n",
counts[0], (counts[0] * 100.0) / nbuckets);
for (si = 1; si <= maxlength; ++si)
{
nzero_counts += counts[si] * si;
printf ("%7d %-10d (%5.1f%%) %5.1f%%\n",
si, counts[si], (counts[si] * 100.0) / nbuckets,
(nzero_counts * 100.0) / nsyms);
}
free (counts);
free (lengths);
}
if (buckets != NULL)
{
free (buckets);
free (chains);
}
return 1;
}
static int
process_syminfo (file)
FILE * file;
{
int i;
if (dynamic_syminfo == NULL
|| !do_dynamic)
/* No syminfo, this is ok. */
return 1;
/* There better should be a dynamic symbol section. */
if (dynamic_symbols == NULL || dynamic_strings == NULL)
return 0;
if (dynamic_addr)
printf (_("\nDynamic info segment at offset 0x%lx contains %d entries:\n"),
dynamic_syminfo_offset, dynamic_syminfo_nent);
printf (_(" Num: Name BoundTo Flags\n"));
for (i = 0; i < dynamic_syminfo_nent; ++i)
{
unsigned short int flags = dynamic_syminfo[i].si_flags;
printf ("%4d: %-30s ", i,
dynamic_strings + dynamic_symbols[i].st_name);
switch (dynamic_syminfo[i].si_boundto)
{
case SYMINFO_BT_SELF:
fputs ("SELF ", stdout);
break;
case SYMINFO_BT_PARENT:
fputs ("PARENT ", stdout);
break;
default:
if (dynamic_syminfo[i].si_boundto > 0
&& dynamic_syminfo[i].si_boundto < dynamic_size)
printf ("%-10s ",
dynamic_strings
+ dynamic_segment[dynamic_syminfo[i].si_boundto].d_un.d_val);
else
printf ("%-10d ", dynamic_syminfo[i].si_boundto);
break;
}
if (flags & SYMINFO_FLG_DIRECT)
printf (" DIRECT");
if (flags & SYMINFO_FLG_PASSTHRU)
printf (" PASSTHRU");
if (flags & SYMINFO_FLG_COPY)
printf (" COPY");
if (flags & SYMINFO_FLG_LAZYLOAD)
printf (" LAZYLOAD");
puts ("");
}
return 1;
}
#ifdef SUPPORT_DISASSEMBLY
static void
disassemble_section (section, file)
Elf32_Internal_Shdr * section;
FILE * file;
{
printf (_("\nAssembly dump of section %s\n"),
SECTION_NAME (section));
/* XXX -- to be done --- XXX */
return 1;
}
#endif
static int
dump_section (section, file)
Elf32_Internal_Shdr * section;
FILE * file;
{
int bytes;
int addr;
unsigned char * data;
unsigned char * start;
bytes = section->sh_size;
if (bytes == 0)
{
printf (_("\nSection '%s' has no data to dump.\n"),
SECTION_NAME (section));
return 0;
}
else
printf (_("\nHex dump of section '%s':\n"), SECTION_NAME (section));
addr = section->sh_addr;
GET_DATA_ALLOC (section->sh_offset, bytes, start, unsigned char *,
"section data");
data = start;
while (bytes)
{
int j;
int k;
int lbytes;
lbytes = (bytes > 16 ? 16 : bytes);
printf (" 0x%8.8x ", addr);
switch (elf_header.e_ident [EI_DATA])
{
case ELFDATA2LSB:
for (j = 15; j >= 0; j --)
{
if (j < lbytes)
printf ("%2.2x", data [j]);
else
printf (" ");
if (!(j & 0x3))
printf (" ");
}
break;
case ELFDATA2MSB:
for (j = 0; j < 16; j++)
{
if (j < lbytes)
printf ("%2.2x", data [j]);
else
printf (" ");
if ((j & 3) == 3)
printf (" ");
}
break;
}
for (j = 0; j < lbytes; j++)
{
k = data [j];
if (k >= ' ' && k < 0x80)
printf ("%c", k);
else
printf (".");
}
putchar ('\n');
data += lbytes;
addr += lbytes;
bytes -= lbytes;
}
free (start);
return 1;
}
static unsigned long int
read_leb128 (data, length_return, sign)
unsigned char * data;
int * length_return;
int sign;
{
unsigned long int result = 0;
unsigned int num_read = 0;
int shift = 0;
unsigned char byte;
do
{
byte = * data ++;
num_read ++;
result |= (byte & 0x7f) << shift;
shift += 7;
}
while (byte & 0x80);
if (length_return != NULL)
* length_return = num_read;
if (sign && (shift < 32) && (byte & 0x40))
result |= -1 << shift;
return result;
}
typedef struct State_Machine_Registers
{
unsigned long address;
unsigned int file;
unsigned int line;
unsigned int column;
int is_stmt;
int basic_block;
int end_sequence;
/* This variable hold the number of the last entry seen
in the File Table. */
unsigned int last_file_entry;
} SMR;
static SMR state_machine_regs;
static void
reset_state_machine (is_stmt)
int is_stmt;
{
state_machine_regs.address = 0;
state_machine_regs.file = 1;
state_machine_regs.line = 1;
state_machine_regs.column = 0;
state_machine_regs.is_stmt = is_stmt;
state_machine_regs.basic_block = 0;
state_machine_regs.end_sequence = 0;
state_machine_regs.last_file_entry = 0;
}
/* Handled an extend line op. Returns true if this is the end
of sequence. */
static int
process_extended_line_op (data, is_stmt)
unsigned char * data;
int is_stmt;
{
unsigned char op_code;
int bytes_read;
unsigned int len;
unsigned char * name;
unsigned long adr;
len = read_leb128 (data, & bytes_read, 0);
data += bytes_read;
if (len == 0)
{
warn (_("badly formed extended line op encountered!"));
return bytes_read;
}
len += bytes_read;
op_code = * data ++;
printf (_(" Extended opcode %d: "), op_code);
switch (op_code)
{
case DW_LNE_end_sequence:
printf (_("End of Sequence\n\n"));
reset_state_machine (is_stmt);
break;
case DW_LNE_set_address:
/* XXX - assumption here that address size is 4! */
adr = byte_get (data, 4);
printf (_("set Address to 0x%lx\n"), adr);
state_machine_regs.address = adr;
break;
case DW_LNE_define_file:
printf (_(" define new File Table entry\n"));
printf (_(" Entry\tDir\tTime\tSize\tName\n"));
printf (_(" %d\t"), ++ state_machine_regs.last_file_entry);
name = data;
data += strlen (data) + 1;
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
data += bytes_read;
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
data += bytes_read;
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
printf (_("%s\n\n"), name);
break;
default:
printf (_("UNKNOWN: length %d\n"), len - bytes_read);
break;
}
return len;
}
static int
display_debug_lines (section, start, file)
Elf32_Internal_Shdr * section;
unsigned char * start;
FILE * file;
{
DWARF2_External_LineInfo * external;
DWARF2_Internal_LineInfo info;
unsigned char * standard_opcodes;
unsigned char * data = start;
unsigned char * end = start + section->sh_size;
unsigned char * end_of_sequence;
int i;
printf (_("\nDump of debug contents of section %s:\n\n"),
SECTION_NAME (section));
while (data < end)
{
external = (DWARF2_External_LineInfo *) data;
/* Check the length of the block. */
info.li_length = BYTE_GET (external->li_length);
if (info.li_length > section->sh_size)
{
warn
(_("The line info appears to be corrupt - the section is too small\n"));
return 0;
}
/* Check its version number. */
info.li_version = BYTE_GET (external->li_version);
if (info.li_version != 2)
{
warn (_("Only DWARF version 2 line info is currently supported.\n"));
return 0;
}
info.li_prologue_length = BYTE_GET (external->li_prologue_length);
info.li_min_insn_length = BYTE_GET (external->li_min_insn_length);
info.li_default_is_stmt = BYTE_GET (external->li_default_is_stmt);
info.li_line_base = BYTE_GET (external->li_line_base);
info.li_line_range = BYTE_GET (external->li_line_range);
info.li_opcode_base = BYTE_GET (external->li_opcode_base);
/* Sign extend the line base field. */
info.li_line_base <<= 24;
info.li_line_base >>= 24;
printf (_(" Length: %ld\n"), info.li_length);
printf (_(" DWARF Version: %d\n"), info.li_version);
printf (_(" Prolgue Length: %d\n"), info.li_prologue_length);
printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
printf (_(" Line Base: %d\n"), info.li_line_base);
printf (_(" Line Range: %d\n"), info.li_line_range);
printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
end_of_sequence = data + info.li_length + sizeof (info.li_length);
reset_state_machine (info.li_default_is_stmt);
/* Display the contents of the Opcodes table. */
standard_opcodes = data + sizeof (* external);
printf (_("\n Opcodes:\n"));
for (i = 1; i < info.li_opcode_base; i++)
printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i]);
/* Display the contents of the Directory table. */
data = standard_opcodes + info.li_opcode_base - 1;
if (* data == 0)
printf (_("\n The Directory Table is empty.\n"));
else
{
printf (_("\n The Directory Table:\n"));
while (* data != 0)
{
printf (_(" %s\n"), data);
data += strlen (data) + 1;
}
}
/* Skip the NUL at the end of the table. */
data ++;
/* Display the contents of the File Name table. */
if (* data == 0)
printf (_("\n The File Name Table is empty.\n"));
else
{
printf (_("\n The File Name Table:\n"));
printf (_(" Entry\tDir\tTime\tSize\tName\n"));
while (* data != 0)
{
char * name;
int bytes_read;
printf (_(" %d\t"), ++ state_machine_regs.last_file_entry);
name = data;
data += strlen (data) + 1;
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
data += bytes_read;
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
data += bytes_read;
printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
data += bytes_read;
printf (_("%s\n"), name);
}
}
/* Skip the NUL at the end of the table. */
data ++;
/* Now display the statements. */
printf (_("\n Line Number Statements:\n"));
while (data < end_of_sequence)
{
unsigned char op_code;
int adv;
int bytes_read;
op_code = * data ++;
switch (op_code)
{
case DW_LNS_extended_op:
data += process_extended_line_op (data, info.li_default_is_stmt);
break;
case DW_LNS_copy:
printf (_(" Copy\n"));
break;
case DW_LNS_advance_pc:
adv = info.li_min_insn_length * read_leb128 (data, & bytes_read, 0);
data += bytes_read;
state_machine_regs.address += adv;
printf (_(" Advance PC by %d to %lx\n"), adv,
state_machine_regs.address);
break;
case DW_LNS_advance_line:
adv = read_leb128 (data, & bytes_read, 1);
data += bytes_read;
state_machine_regs.line += adv;
printf (_(" Advance Line by %d to %d\n"), adv,
state_machine_regs.line);
break;
case DW_LNS_set_file:
adv = read_leb128 (data, & bytes_read, 0);
data += bytes_read;
printf (_(" Set File Name to entry %d in the File Name Table\n"),
adv);
state_machine_regs.file = adv;
break;
case DW_LNS_set_column:
adv = read_leb128 (data, & bytes_read, 0);
data += bytes_read;
printf (_(" Set column to %d\n"), adv);
state_machine_regs.column = adv;
break;
case DW_LNS_negate_stmt:
adv = state_machine_regs.is_stmt;
adv = ! adv;
printf (_(" Set is_stmt to %d\n"), adv);
state_machine_regs.is_stmt = adv;
break;
case DW_LNS_set_basic_block:
printf (_(" Set basic block\n"));
state_machine_regs.basic_block = 1;
break;
case DW_LNS_const_add_pc:
adv = (255 - info.li_opcode_base) / info.li_line_range;
state_machine_regs.address += adv;
printf (_(" Advance PC by constant %d to 0x%lx\n"), adv,
state_machine_regs.address);
break;
case DW_LNS_fixed_advance_pc:
adv = byte_get (data, 2);
data += 2;
state_machine_regs.address += adv;
printf (_(" Advance PC by fixed size amount %d to 0x%lx\n"),
adv, state_machine_regs.address);
break;
default:
op_code -= info.li_opcode_base;
adv = (op_code / info.li_line_range) * info.li_min_insn_length;
state_machine_regs.address += adv;
printf (_(" Special opcode %d: advance Address by %d to 0x%lx"),
op_code, adv, state_machine_regs.address);
adv += (op_code % info.li_line_range) + info.li_line_base;
state_machine_regs.line += adv;
printf (_(" and Line by %d to %d\n"),
adv, state_machine_regs.line);
break;
}
}
printf ("\n");
}
return 1;
}
static int
display_debug_pubnames (section, start, file)
Elf32_Internal_Shdr * section;
unsigned char * start;
FILE * file;
{
DWARF2_External_PubNames * external;
DWARF2_Internal_PubNames pubnames;
unsigned char * end;
end = start + section->sh_size;
printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
while (start < end)
{
unsigned char * data;
unsigned long offset;
external = (DWARF2_External_PubNames *) start;
pubnames.pn_length = BYTE_GET (external->pn_length);
pubnames.pn_version = BYTE_GET (external->pn_version);
pubnames.pn_offset = BYTE_GET (external->pn_offset);
pubnames.pn_size = BYTE_GET (external->pn_size);
data = start + sizeof (* external);
start += pubnames.pn_length + sizeof (external->pn_length);
if (pubnames.pn_version != 2)
{
warn (_("Only DWARF 2 pubnames are currently supported"));
continue;
}
printf (_(" Length: %ld\n"),
pubnames.pn_length);
printf (_(" Version: %d\n"),
pubnames.pn_version);
printf (_(" Offset into .debug_info section: %ld\n"),
pubnames.pn_offset);
printf (_(" Size of area in .debug_info section: %ld\n"),
pubnames.pn_size);
printf (_("\n Offset\tName\n"));
do
{
offset = byte_get (data, 4);
if (offset != 0)
{
data += 4;
printf (" %ld\t\t%s\n", offset, data);
data += strlen (data) + 1;
}
}
while (offset != 0);
}
printf ("\n");
return 1;
}
static char *
get_TAG_name (tag)
unsigned long tag;
{
switch (tag)
{
case DW_TAG_padding: return "DW_TAG_padding";
case DW_TAG_array_type: return "DW_TAG_array_type";
case DW_TAG_class_type: return "DW_TAG_class_type";
case DW_TAG_entry_point: return "DW_TAG_entry_point";
case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
case DW_TAG_label: return "DW_TAG_label";
case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
case DW_TAG_member: return "DW_TAG_member";
case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
case DW_TAG_reference_type: return "DW_TAG_reference_type";
case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
case DW_TAG_string_type: return "DW_TAG_string_type";
case DW_TAG_structure_type: return "DW_TAG_structure_type";
case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
case DW_TAG_typedef: return "DW_TAG_typedef";
case DW_TAG_union_type: return "DW_TAG_union_type";
case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
case DW_TAG_variant: return "DW_TAG_variant";
case DW_TAG_common_block: return "DW_TAG_common_block";
case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
case DW_TAG_inheritance: return "DW_TAG_inheritance";
case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
case DW_TAG_module: return "DW_TAG_module";
case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
case DW_TAG_set_type: return "DW_TAG_set_type";
case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
case DW_TAG_base_type: return "DW_TAG_base_type";
case DW_TAG_catch_block: return "DW_TAG_catch_block";
case DW_TAG_const_type: return "DW_TAG_const_type";
case DW_TAG_constant: return "DW_TAG_constant";
case DW_TAG_enumerator: return "DW_TAG_enumerator";
case DW_TAG_file_type: return "DW_TAG_file_type";
case DW_TAG_friend: return "DW_TAG_friend";
case DW_TAG_namelist: return "DW_TAG_namelist";
case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
case DW_TAG_packed_type: return "DW_TAG_packed_type";
case DW_TAG_subprogram: return "DW_TAG_subprogram";
case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
case DW_TAG_try_block: return "DW_TAG_try_block";
case DW_TAG_variant_part: return "DW_TAG_variant_part";
case DW_TAG_variable: return "DW_TAG_variable";
case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
case DW_TAG_format_label: return "DW_TAG_format_label";
case DW_TAG_function_template: return "DW_TAG_function_template";
case DW_TAG_class_template: return "DW_TAG_class_template";
default:
{
static char buffer [100];
sprintf (buffer, _("Unknown TAG value: %lx"), tag);
return buffer;
}
}
}
static char *
get_AT_name (attribute)
unsigned long attribute;
{
switch (attribute)
{
case DW_AT_sibling: return "DW_AT_sibling";
case DW_AT_location: return "DW_AT_location";
case DW_AT_name: return "DW_AT_name";
case DW_AT_ordering: return "DW_AT_ordering";
case DW_AT_subscr_data: return "DW_AT_subscr_data";
case DW_AT_byte_size: return "DW_AT_byte_size";
case DW_AT_bit_offset: return "DW_AT_bit_offset";
case DW_AT_bit_size: return "DW_AT_bit_size";
case DW_AT_element_list: return "DW_AT_element_list";
case DW_AT_stmt_list: return "DW_AT_stmt_list";
case DW_AT_low_pc: return "DW_AT_low_pc";
case DW_AT_high_pc: return "DW_AT_high_pc";
case DW_AT_language: return "DW_AT_language";
case DW_AT_member: return "DW_AT_member";
case DW_AT_discr: return "DW_AT_discr";
case DW_AT_discr_value: return "DW_AT_discr_value";
case DW_AT_visibility: return "DW_AT_visibility";
case DW_AT_import: return "DW_AT_import";
case DW_AT_string_length: return "DW_AT_string_length";
case DW_AT_common_reference: return "DW_AT_common_reference";
case DW_AT_comp_dir: return "DW_AT_comp_dir";
case DW_AT_const_value: return "DW_AT_const_value";
case DW_AT_containing_type: return "DW_AT_containing_type";
case DW_AT_default_value: return "DW_AT_default_value";
case DW_AT_inline: return "DW_AT_inline";
case DW_AT_is_optional: return "DW_AT_is_optional";
case DW_AT_lower_bound: return "DW_AT_lower_bound";
case DW_AT_producer: return "DW_AT_producer";
case DW_AT_prototyped: return "DW_AT_prototyped";
case DW_AT_return_addr: return "DW_AT_return_addr";
case DW_AT_start_scope: return "DW_AT_start_scope";
case DW_AT_stride_size: return "DW_AT_stride_size";
case DW_AT_upper_bound: return "DW_AT_upper_bound";
case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
case DW_AT_accessibility: return "DW_AT_accessibility";
case DW_AT_address_class: return "DW_AT_address_class";
case DW_AT_artificial: return "DW_AT_artificial";
case DW_AT_base_types: return "DW_AT_base_types";
case DW_AT_calling_convention: return "DW_AT_calling_convention";
case DW_AT_count: return "DW_AT_count";
case DW_AT_data_member_location: return "DW_AT_data_member_location";
case DW_AT_decl_column: return "DW_AT_decl_column";
case DW_AT_decl_file: return "DW_AT_decl_file";
case DW_AT_decl_line: return "DW_AT_decl_line";
case DW_AT_declaration: return "DW_AT_declaration";
case DW_AT_discr_list: return "DW_AT_discr_list";
case DW_AT_encoding: return "DW_AT_encoding";
case DW_AT_external: return "DW_AT_external";
case DW_AT_frame_base: return "DW_AT_frame_base";
case DW_AT_friend: return "DW_AT_friend";
case DW_AT_identifier_case: return "DW_AT_identifier_case";
case DW_AT_macro_info: return "DW_AT_macro_info";
case DW_AT_namelist_items: return "DW_AT_namelist_items";
case DW_AT_priority: return "DW_AT_priority";
case DW_AT_segment: return "DW_AT_segment";
case DW_AT_specification: return "DW_AT_specification";
case DW_AT_static_link: return "DW_AT_static_link";
case DW_AT_type: return "DW_AT_type";
case DW_AT_use_location: return "DW_AT_use_location";
case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
case DW_AT_virtuality: return "DW_AT_virtuality";
case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde";
case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
case DW_AT_MIPS_software_pipeline_depth: return "DW_AT_MIPS_software_pipeline_depth";
case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
case DW_AT_sf_names: return "DW_AT_sf_names";
case DW_AT_src_info: return "DW_AT_src_info";
case DW_AT_mac_info: return "DW_AT_mac_info";
case DW_AT_src_coords: return "DW_AT_src_coords";
case DW_AT_body_begin: return "DW_AT_body_begin";
case DW_AT_body_end: return "DW_AT_body_end";
default:
{
static char buffer [100];
sprintf (buffer, _("Unknown AT value: %lx"), attribute);
return buffer;
}
}
}
static char *
get_FORM_name (form)
unsigned long form;
{
switch (form)
{
case DW_FORM_addr: return "DW_FORM_addr";
case DW_FORM_block2: return "DW_FORM_block2";
case DW_FORM_block4: return "DW_FORM_block4";
case DW_FORM_data2: return "DW_FORM_data2";
case DW_FORM_data4: return "DW_FORM_data4";
case DW_FORM_data8: return "DW_FORM_data8";
case DW_FORM_string: return "DW_FORM_string";
case DW_FORM_block: return "DW_FORM_block";
case DW_FORM_block1: return "DW_FORM_block1";
case DW_FORM_data1: return "DW_FORM_data1";
case DW_FORM_flag: return "DW_FORM_flag";
case DW_FORM_sdata: return "DW_FORM_sdata";
case DW_FORM_strp: return "DW_FORM_strp";
case DW_FORM_udata: return "DW_FORM_udata";
case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
case DW_FORM_ref1: return "DW_FORM_ref1";
case DW_FORM_ref2: return "DW_FORM_ref2";
case DW_FORM_ref4: return "DW_FORM_ref4";
case DW_FORM_ref8: return "DW_FORM_ref8";
case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
case DW_FORM_indirect: return "DW_FORM_indirect";
default:
{
static char buffer [100];
sprintf (buffer, _("Unknown FORM value: %lx"), form);
return buffer;
}
}
}
/* FIXME: There are better and more effiecint ways to handle
these structures. For now though, I just want something that
is simple to implement. */
typedef struct abbrev_attr
{
unsigned long attribute;
unsigned long form;
struct abbrev_attr * next;
}
abbrev_attr;
typedef struct abbrev_entry
{
unsigned long entry;
unsigned long tag;
int children;
struct abbrev_attr * first_attr;
struct abbrev_attr * last_attr;
struct abbrev_entry * next;
}
abbrev_entry;
static abbrev_entry * first_abbrev = NULL;
static abbrev_entry * last_abbrev = NULL;
static void
free_abbrevs PARAMS ((void))
{
abbrev_entry * abbrev;
for (abbrev = first_abbrev; abbrev;)
{
abbrev_entry * next = abbrev->next;
abbrev_attr * attr;
for (attr = abbrev->first_attr; attr;)
{
abbrev_attr * next = attr->next;
free (attr);
attr = next;
}
free (abbrev);
abbrev = next;
}
last_abbrev = first_abbrev = NULL;
}
static void
add_abbrev (number, tag, children)
unsigned long number;
unsigned long tag;
int children;
{
abbrev_entry * entry;
entry = (abbrev_entry *) malloc (sizeof (* entry));
if (entry == NULL)
/* ugg */
return;
entry->entry = number;
entry->tag = tag;
entry->children = children;
entry->first_attr = NULL;
entry->last_attr = NULL;
entry->next = NULL;
if (first_abbrev == NULL)
first_abbrev = entry;
else
last_abbrev->next = entry;
last_abbrev = entry;
}
static void
add_abbrev_attr (attribute, form)
unsigned long attribute;
unsigned long form;
{
abbrev_attr * attr;
attr = (abbrev_attr *) malloc (sizeof (* attr));
if (attr == NULL)
/* ugg */
return;
attr->attribute = attribute;
attr->form = form;
attr->next = NULL;
if (last_abbrev->first_attr == NULL)
last_abbrev->first_attr = attr;
else
last_abbrev->last_attr->next = attr;
last_abbrev->last_attr = attr;
}
/* Processes the (partial) contents of a .debug_abbrev section.
Returns NULL if the end of the section was encountered.
Returns the address after the last byte read if the end of
an abbreviation set was found. */
static unsigned char *
process_abbrev_section (start, end)
unsigned char * start;
unsigned char * end;
{
if (first_abbrev != NULL)
return NULL;
while (start < end)
{
int bytes_read;
unsigned long entry;
unsigned long tag;
unsigned long attribute;
int children;
entry = read_leb128 (start, & bytes_read, 0);
start += bytes_read;
if (entry == 0)
return start;
tag = read_leb128 (start, & bytes_read, 0);
start += bytes_read;
children = * start ++;
add_abbrev (entry, tag, children);
do
{
unsigned long form;
attribute = read_leb128 (start, & bytes_read, 0);
start += bytes_read;
form = read_leb128 (start, & bytes_read, 0);
start += bytes_read;
if (attribute != 0)
add_abbrev_attr (attribute, form);
}
while (attribute != 0);
}
return NULL;
}
static int
display_debug_abbrev (section, start, file)
Elf32_Internal_Shdr * section;
unsigned char * start;
FILE * file;
{
abbrev_entry * entry;
unsigned char * end = start + section->sh_size;
printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
do
{
start = process_abbrev_section (start, end);
printf (_(" Number TAG\n"));
for (entry = first_abbrev; entry; entry = entry->next)
{
abbrev_attr * attr;
printf (_(" %ld %s [%s]\n"),
entry->entry,
get_TAG_name (entry->tag),
entry->children ? _("has children") : _("no children"));
for (attr = entry->first_attr; attr; attr = attr->next)
{
printf (_(" %-18s %s\n"),
get_AT_name (attr->attribute),
get_FORM_name (attr->form));
}
}
}
while (start);
printf ("\n");
return 1;
}
static unsigned char *
display_block (data, length)
unsigned char * data;
unsigned long length;
{
printf (_(" %lu byte block: "), length);
while (length --)
printf ("%lx ", byte_get (data ++, 1));
return data;
}
static void
decode_location_expression (data, pointer_size)
unsigned char * data;
unsigned int pointer_size;
{
unsigned char op;
int bytes_read;
op = * data ++;
switch (op)
{
case DW_OP_addr: printf ("DW_OP_addr: %lx", byte_get (data, pointer_size)); break;
case DW_OP_deref: printf ("DW_OP_deref"); break;
case DW_OP_const1u: printf ("DW_OP_const1u: %lu", byte_get (data, 1)); break;
case DW_OP_const1s: printf ("DW_OP_const1s: %ld", (long) byte_get (data, 1)); break;
case DW_OP_const2u: printf ("DW_OP_const2u: %lu", byte_get (data, 2)); break;
case DW_OP_const2s: printf ("DW_OP_const2s: %ld", (long) byte_get (data, 2)); break;
case DW_OP_const4u: printf ("DW_OP_const4u: %lu", byte_get (data, 4)); break;
case DW_OP_const4s: printf ("DW_OP_const4s: %ld", (long) byte_get (data, 4)); break;
case DW_OP_const8u: printf ("DW_OP_const8u: %lu %lu", byte_get (data, 4), byte_get (data + 4, 4)); break;
case DW_OP_const8s: printf ("DW_OP_const8s: %ld %ld", byte_get (data, 4), byte_get (data + 4, 4)); break;
case DW_OP_constu: printf ("DW_OP_constu: %lu", read_leb128 (data, NULL, 0)); break;
case DW_OP_consts: printf ("DW_OP_consts: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_dup: printf ("DW_OP_dup"); break;
case DW_OP_drop: printf ("DW_OP_drop"); break;
case DW_OP_over: printf ("DW_OP_over"); break;
case DW_OP_pick: printf ("DW_OP_pick: %ld", byte_get (data, 1)); break;
case DW_OP_swap: printf ("DW_OP_swap"); break;
case DW_OP_rot: printf ("DW_OP_rot"); break;
case DW_OP_xderef: printf ("DW_OP_xderef"); break;
case DW_OP_abs: printf ("DW_OP_abs"); break;
case DW_OP_and: printf ("DW_OP_and"); break;
case DW_OP_div: printf ("DW_OP_div"); break;
case DW_OP_minus: printf ("DW_OP_minus"); break;
case DW_OP_mod: printf ("DW_OP_mod"); break;
case DW_OP_mul: printf ("DW_OP_mul"); break;
case DW_OP_neg: printf ("DW_OP_neg"); break;
case DW_OP_not: printf ("DW_OP_not"); break;
case DW_OP_or: printf ("DW_OP_or"); break;
case DW_OP_plus: printf ("DW_OP_plus"); break;
case DW_OP_plus_uconst: printf ("DW_OP_plus_uconst: %lu", read_leb128 (data, NULL, 0)); break;
case DW_OP_shl: printf ("DW_OP_shl"); break;
case DW_OP_shr: printf ("DW_OP_shr"); break;
case DW_OP_shra: printf ("DW_OP_shra"); break;
case DW_OP_xor: printf ("DW_OP_xor"); break;
case DW_OP_bra: printf ("DW_OP_bra: %ld", byte_get (data, 2)); break;
case DW_OP_eq: printf ("DW_OP_eq"); break;
case DW_OP_ge: printf ("DW_OP_ge"); break;
case DW_OP_gt: printf ("DW_OP_gt"); break;
case DW_OP_le: printf ("DW_OP_le"); break;
case DW_OP_lt: printf ("DW_OP_lt"); break;
case DW_OP_ne: printf ("DW_OP_ne"); break;
case DW_OP_skip: printf ("DW_OP_skip: %ld", byte_get (data, 2)); break;
case DW_OP_lit0: printf ("DW_OP_lit0"); break;
case DW_OP_lit1: printf ("DW_OP_lit1"); break;
case DW_OP_lit2: printf ("DW_OP_lit2"); break;
case DW_OP_lit3: printf ("DW_OP_lit3"); break;
case DW_OP_lit4: printf ("DW_OP_lit4"); break;
case DW_OP_lit5: printf ("DW_OP_lit5"); break;
case DW_OP_lit6: printf ("DW_OP_lit6"); break;
case DW_OP_lit7: printf ("DW_OP_lit7"); break;
case DW_OP_lit8: printf ("DW_OP_lit8"); break;
case DW_OP_lit9: printf ("DW_OP_lit9"); break;
case DW_OP_lit10: printf ("DW_OP_lit10"); break;
case DW_OP_lit11: printf ("DW_OP_lit11"); break;
case DW_OP_lit12: printf ("DW_OP_lit12"); break;
case DW_OP_lit13: printf ("DW_OP_lit13"); break;
case DW_OP_lit14: printf ("DW_OP_lit14"); break;
case DW_OP_lit15: printf ("DW_OP_lit15"); break;
case DW_OP_lit16: printf ("DW_OP_lit16"); break;
case DW_OP_lit17: printf ("DW_OP_lit17"); break;
case DW_OP_lit18: printf ("DW_OP_lit18"); break;
case DW_OP_lit19: printf ("DW_OP_lit19"); break;
case DW_OP_lit20: printf ("DW_OP_lit20"); break;
case DW_OP_lit21: printf ("DW_OP_lit21"); break;
case DW_OP_lit22: printf ("DW_OP_lit22"); break;
case DW_OP_lit23: printf ("DW_OP_lit23"); break;
case DW_OP_lit24: printf ("DW_OP_lit24"); break;
case DW_OP_lit25: printf ("DW_OP_lit25"); break;
case DW_OP_lit26: printf ("DW_OP_lit26"); break;
case DW_OP_lit27: printf ("DW_OP_lit27"); break;
case DW_OP_lit28: printf ("DW_OP_lit28"); break;
case DW_OP_lit29: printf ("DW_OP_lit29"); break;
case DW_OP_lit30: printf ("DW_OP_lit30"); break;
case DW_OP_lit31: printf ("DW_OP_lit31"); break;
case DW_OP_reg0: printf ("DW_OP_reg0"); break;
case DW_OP_reg1: printf ("DW_OP_reg1"); break;
case DW_OP_reg2: printf ("DW_OP_reg2"); break;
case DW_OP_reg3: printf ("DW_OP_reg3"); break;
case DW_OP_reg4: printf ("DW_OP_reg4"); break;
case DW_OP_reg5: printf ("DW_OP_reg5"); break;
case DW_OP_reg6: printf ("DW_OP_reg6"); break;
case DW_OP_reg7: printf ("DW_OP_reg7"); break;
case DW_OP_reg8: printf ("DW_OP_reg8"); break;
case DW_OP_reg9: printf ("DW_OP_reg9"); break;
case DW_OP_reg10: printf ("DW_OP_reg10"); break;
case DW_OP_reg11: printf ("DW_OP_reg11"); break;
case DW_OP_reg12: printf ("DW_OP_reg12"); break;
case DW_OP_reg13: printf ("DW_OP_reg13"); break;
case DW_OP_reg14: printf ("DW_OP_reg14"); break;
case DW_OP_reg15: printf ("DW_OP_reg15"); break;
case DW_OP_reg16: printf ("DW_OP_reg16"); break;
case DW_OP_reg17: printf ("DW_OP_reg17"); break;
case DW_OP_reg18: printf ("DW_OP_reg18"); break;
case DW_OP_reg19: printf ("DW_OP_reg19"); break;
case DW_OP_reg20: printf ("DW_OP_reg20"); break;
case DW_OP_reg21: printf ("DW_OP_reg21"); break;
case DW_OP_reg22: printf ("DW_OP_reg22"); break;
case DW_OP_reg23: printf ("DW_OP_reg23"); break;
case DW_OP_reg24: printf ("DW_OP_reg24"); break;
case DW_OP_reg25: printf ("DW_OP_reg25"); break;
case DW_OP_reg26: printf ("DW_OP_reg26"); break;
case DW_OP_reg27: printf ("DW_OP_reg27"); break;
case DW_OP_reg28: printf ("DW_OP_reg28"); break;
case DW_OP_reg29: printf ("DW_OP_reg29"); break;
case DW_OP_reg30: printf ("DW_OP_reg30"); break;
case DW_OP_reg31: printf ("DW_OP_reg31"); break;
case DW_OP_breg0: printf ("DW_OP_breg0: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg1: printf ("DW_OP_breg1: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg2: printf ("DW_OP_breg2: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg3: printf ("DW_OP_breg3: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg4: printf ("DW_OP_breg4: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg5: printf ("DW_OP_breg5: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg6: printf ("DW_OP_breg6: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg7: printf ("DW_OP_breg7: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg8: printf ("DW_OP_breg8: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg9: printf ("DW_OP_breg9: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg10: printf ("DW_OP_breg10: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg11: printf ("DW_OP_breg11: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg12: printf ("DW_OP_breg12: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg13: printf ("DW_OP_breg13: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg14: printf ("DW_OP_breg14: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg15: printf ("DW_OP_breg15: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg16: printf ("DW_OP_breg16: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg17: printf ("DW_OP_breg17: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg18: printf ("DW_OP_breg18: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg19: printf ("DW_OP_breg19: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg20: printf ("DW_OP_breg20: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg21: printf ("DW_OP_breg21: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg22: printf ("DW_OP_breg22: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg23: printf ("DW_OP_breg23: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg24: printf ("DW_OP_breg24: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg25: printf ("DW_OP_breg25: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg26: printf ("DW_OP_breg26: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg27: printf ("DW_OP_breg27: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg28: printf ("DW_OP_breg28: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg29: printf ("DW_OP_breg29: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg30: printf ("DW_OP_breg30: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_breg31: printf ("DW_OP_breg31: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_regx: printf ("DW_OP_regx: %lu", read_leb128 (data, NULL, 0)); break;
case DW_OP_fbreg: printf ("DW_OP_fbreg: %ld", read_leb128 (data, NULL, 1)); break;
case DW_OP_bregx: printf ("DW_OP_bregx: %lu %ld", read_leb128 (data, & bytes_read, 0), read_leb128 (data + bytes_read, NULL, 1)); break;
case DW_OP_piece: printf ("DW_OP_piece: %lu", read_leb128 (data, NULL, 0)); break;
case DW_OP_deref_size: printf ("DW_OP_deref_size: %ld", byte_get (data, 1)); break;
case DW_OP_xderef_size: printf ("DW_OP_xderef_size: %ld", byte_get (data, 1)); break;
case DW_OP_nop: printf ("DW_OP_nop"); break;
default:
if (op >= DW_OP_lo_user
&& op <= DW_OP_hi_user)
printf (_("(User defined location op)"));
else
printf (_("(Unknown location op)"));
break;
}
}
static unsigned char *
read_and_display_attr (attribute, form, data, pointer_size)
unsigned long attribute;
unsigned long form;
unsigned char * data;
unsigned long pointer_size;
{
unsigned long uvalue;
unsigned char * block_start;
int bytes_read;
int is_ref = 0;
printf (" %-18s:", get_AT_name (attribute));
switch (form)
{
case DW_FORM_ref_addr:
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
case DW_FORM_ref8:
case DW_FORM_ref_udata:
is_ref = 1;
}
switch (form)
{
case DW_FORM_ref_addr:
case DW_FORM_addr:
uvalue = byte_get (data, pointer_size);
printf (is_ref ? " <%x>" : " %#x", uvalue);
data += pointer_size;
break;
case DW_FORM_ref1:
case DW_FORM_flag:
case DW_FORM_data1:
uvalue = byte_get (data ++, 1);
printf (is_ref ? " <%x>" : " %d", uvalue);
break;
case DW_FORM_ref2:
case DW_FORM_data2:
uvalue = byte_get (data, 2);
data += 2;
printf (is_ref ? " <%x>" : " %d", uvalue);
break;
case DW_FORM_ref4:
case DW_FORM_data4:
uvalue = byte_get (data, 4);
data += 4;
printf (is_ref ? " <%x>" : " %d", uvalue);
break;
case DW_FORM_ref8:
case DW_FORM_data8:
uvalue = byte_get (data, 4);
printf (" %lx", uvalue);
printf (" %lx", byte_get (data + 4, 4));
data += 8;
break;
case DW_FORM_string:
printf (" %s", data);
data += strlen (data) + 1;
break;
case DW_FORM_sdata:
uvalue = read_leb128 (data, & bytes_read, 1);
data += bytes_read;
printf (" %ld", (long) uvalue);
break;
case DW_FORM_ref_udata:
case DW_FORM_udata:
uvalue = read_leb128 (data, & bytes_read, 0);
data += bytes_read;
printf (is_ref ? " <%lx>" : " %ld", uvalue);
break;
case DW_FORM_block:
uvalue = read_leb128 (data, & bytes_read, 0);
block_start = data + bytes_read;
data = display_block (block_start, uvalue);
uvalue = * block_start;
break;
case DW_FORM_block1:
uvalue = byte_get (data, 1);
block_start = data + 1;
data = display_block (block_start, uvalue);
uvalue = * block_start;
break;
case DW_FORM_block2:
uvalue = byte_get (data, 2);
block_start = data + 2;
data = display_block (block_start, uvalue);
uvalue = * block_start;
break;
case DW_FORM_block4:
uvalue = byte_get (data, 4);
block_start = data + 4;
data = display_block (block_start, uvalue);
uvalue = * block_start;
break;
case DW_FORM_strp:
case DW_FORM_indirect:
warn (_("Unable to handle FORM: %d"), form);
break;
default:
warn (_("Unrecognised form: %d"), form);
break;
}
/* For some attributes we can display futher information. */
printf ("\t");
switch (attribute)
{
case DW_AT_inline:
switch (uvalue)
{
case DW_INL_not_inlined: printf (_("(not inlined)")); break;
case DW_INL_inlined: printf (_("(inlined)")); break;
case DW_INL_declared_not_inlined: printf (_("(declared as inline but ignored)")); break;
case DW_INL_declared_inlined: printf (_("(declared as inline and inlined)")); break;
default: printf (_(" (Unknown inline attribute value: %lx)"), uvalue); break;
}
break;
case DW_AT_frame_base:
if (uvalue >= DW_OP_reg0 && uvalue <= DW_OP_reg31)
printf ("(reg %ld)", uvalue - DW_OP_reg0);
break;
case DW_AT_language:
switch (uvalue)
{
case DW_LANG_C: printf ("(non-ANSI C)"); break;
case DW_LANG_C89: printf ("(ANSI C)"); break;
case DW_LANG_C_plus_plus: printf ("(C++)"); break;
case DW_LANG_Fortran77: printf ("(FORTRAN 77)"); break;
case DW_LANG_Fortran90: printf ("(Fortran 90)"); break;
case DW_LANG_Modula2: printf ("(Modula 2)"); break;
case DW_LANG_Pascal83: printf ("(ANSI Pascal)"); break;
case DW_LANG_Ada83: printf ("(Ada)"); break;
case DW_LANG_Cobol74: printf ("(Cobol 74)"); break;
case DW_LANG_Cobol85: printf ("(Cobol 85)"); break;
case DW_LANG_Mips_Assembler: printf ("(MIPS assembler)"); break;
default: printf ("(Unknown: %lx)", uvalue); break;
}
break;
case DW_AT_encoding:
switch (uvalue)
{
case DW_ATE_void: printf ("(void)"); break;
case DW_ATE_address: printf ("(machine address)"); break;
case DW_ATE_boolean: printf ("(boolean)"); break;
case DW_ATE_complex_float: printf ("(complex float)"); break;
case DW_ATE_float: printf ("(float)"); break;
case DW_ATE_signed: printf ("(signed)"); break;
case DW_ATE_signed_char: printf ("(signed char)"); break;
case DW_ATE_unsigned: printf ("(unsigned)"); break;
case DW_ATE_unsigned_char: printf ("(unsigned char)"); break;
default:
if (uvalue >= DW_ATE_lo_user
&& uvalue <= DW_ATE_hi_user)
printf ("(user defined type)");
else
printf ("(unknown type)");
break;
}
break;
case DW_AT_accessibility:
switch (uvalue)
{
case DW_ACCESS_public: printf ("(public)"); break;
case DW_ACCESS_protected: printf ("(protected)"); break;
case DW_ACCESS_private: printf ("(private)"); break;
default: printf ("(unknown accessibility)"); break;
}
break;
case DW_AT_visibility:
switch (uvalue)
{
case DW_VIS_local: printf ("(local)"); break;
case DW_VIS_exported: printf ("(exported)"); break;
case DW_VIS_qualified: printf ("(qualified)"); break;
default: printf ("(unknown visibility)"); break;
}
break;
case DW_AT_virtuality:
switch (uvalue)
{
case DW_VIRTUALITY_none: printf ("(none)"); break;
case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
default: printf ("(unknown virtuality)"); break;
}
break;
case DW_AT_identifier_case:
switch (uvalue)
{
case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
case DW_ID_up_case: printf ("(up_case)"); break;
case DW_ID_down_case: printf ("(down_case)"); break;
case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
default: printf ("(unknown case)"); break;
}
break;
case DW_AT_calling_convention:
switch (uvalue)
{
case DW_CC_normal: printf ("(normal)"); break;
case DW_CC_program: printf ("(program)"); break;
case DW_CC_nocall: printf ("(nocall)"); break;
default:
if (uvalue >= DW_CC_lo_user
&& uvalue <= DW_CC_hi_user)
printf ("(user defined)");
else
printf ("(unknown convention)");
}
break;
case DW_AT_location:
case DW_AT_data_member_location:
case DW_AT_vtable_elem_location:
printf ("(");
decode_location_expression (block_start, pointer_size);
printf (")");
break;
default:
break;
}
printf ("\n");
return data;
}
static int
display_debug_info (section, start, file)
Elf32_Internal_Shdr * section;
unsigned char * start;
FILE * file;
{
unsigned char * end = start + section->sh_size;
unsigned char * section_begin = start;
printf (_("The section %s contains:\n\n"), SECTION_NAME (section));
while (start < end)
{
DWARF2_External_CompUnit * external;
DWARF2_Internal_CompUnit compunit;
unsigned char * tags;
int i;
int level;
external = (DWARF2_External_CompUnit *) start;
compunit.cu_length = BYTE_GET (external->cu_length);
compunit.cu_version = BYTE_GET (external->cu_version);
compunit.cu_abbrev_offset = BYTE_GET (external->cu_abbrev_offset);
compunit.cu_pointer_size = BYTE_GET (external->cu_pointer_size);
tags = start + sizeof (* external);
start += compunit.cu_length + sizeof (external->cu_length);
if (compunit.cu_version != 2)
{
warn (_("Only version 2 DWARF debug information is currently supported.\n"));
continue;
}
printf (_(" Compilation Unit:\n"));
printf (_(" Length: %ld\n"), compunit.cu_length);
printf (_(" Version: %d\n"), compunit.cu_version);
printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
if (first_abbrev != NULL)
free_abbrevs ();
/* Read in the abbrevs used by this compilation unit. */
{
Elf32_Internal_Shdr * sec;
unsigned char * begin;
/* Locate the .debug_abbrev section and process it. */
for (i = 0, sec = section_headers;
i < elf_header.e_shnum;
i ++, sec ++)
if (strcmp (SECTION_NAME (sec), ".debug_abbrev") == 0)
break;
if (i == -1 || sec->sh_size == 0)
{
warn (_("Unable to locate .debug_abbrev section!\n"));
return 0;
}
GET_DATA_ALLOC (sec->sh_offset, sec->sh_size, begin, unsigned char *,
"debug_abbrev section data");
process_abbrev_section (begin + compunit.cu_abbrev_offset,
begin + sec->sh_size);
free (begin);
}
level = 0;
while (tags < start)
{
int bytes_read;
int abbrev_number;
abbrev_entry * entry;
abbrev_attr * attr;
abbrev_number = read_leb128 (tags, & bytes_read, 0);
tags += bytes_read;
/* A null DIE marks the end of a list of children. */
if (abbrev_number == 0)
{
--level;
continue;
}
/* Scan through the abbreviation list until we reach the
correct entry. */
for (entry = first_abbrev;
entry && entry->entry != abbrev_number;
entry = entry->next)
continue;
if (entry == NULL)
{
warn (_("Unable to locate entry %d in the abbreviation table\n"),
abbrev_number);
return 0;
}
printf (_(" <%d><%x>: Abbrev Number: %d (%s)\n"),
level, tags - section_begin - bytes_read,
abbrev_number,
get_TAG_name (entry->tag));
for (attr = entry->first_attr; attr; attr = attr->next)
tags = read_and_display_attr (attr->attribute,
attr->form,
tags,
compunit.cu_pointer_size);
if (entry->children)
++level;
}
}
printf ("\n");
return 1;
}
static int
display_debug_aranges (section, start, file)
Elf32_Internal_Shdr * section;
unsigned char * start;
FILE * file;
{
unsigned char * end = start + section->sh_size;
printf (_("The section %s contains:\n\n"), SECTION_NAME (section));
while (start < end)
{
DWARF2_External_ARange * external;
DWARF2_Internal_ARange arange;
unsigned char * ranges;
unsigned long length;
unsigned long address;
external = (DWARF2_External_ARange *) start;
arange.ar_length = BYTE_GET (external->ar_length);
arange.ar_version = BYTE_GET (external->ar_version);
arange.ar_info_offset = BYTE_GET (external->ar_info_offset);
arange.ar_pointer_size = BYTE_GET (external->ar_pointer_size);
arange.ar_segment_size = BYTE_GET (external->ar_segment_size);
printf (_(" Length: %ld\n"), arange.ar_length);
printf (_(" Version: %d\n"), arange.ar_version);
printf (_(" Offset into .debug_info: %lx\n"), arange.ar_info_offset);
printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
printf (_("\n Address Length\n"));
ranges = start + sizeof (* external);
for (;;)
{
address = byte_get (ranges, arange.ar_pointer_size);
if (address == 0)
break;
ranges += arange.ar_pointer_size;
length = byte_get (ranges, arange.ar_pointer_size);
ranges += arange.ar_pointer_size;
printf (" %8.8lx %lu\n", address, length);
}
start += arange.ar_length + sizeof (external->ar_length);
}
printf ("\n");
return 1;
}
static int
display_debug_not_supported (section, start, file)
Elf32_Internal_Shdr * section;
unsigned char * start;
FILE * file;
{
printf (_("Displaying the debug contents of section %s is not yet supported.\n"),
SECTION_NAME (section));
return 1;
}
/* A structure containing the name of a debug section and a pointer
to a function that can decode it. */
struct
{
char * name;
int (* display) PARAMS((Elf32_Internal_Shdr *, unsigned char *, FILE *));
}
debug_displays[] =
{
{ ".debug_info", display_debug_info },
{ ".debug_abbrev", display_debug_abbrev },
{ ".debug_line", display_debug_lines },
{ ".debug_aranges", display_debug_aranges },
{ ".debug_pubnames", display_debug_pubnames },
{ ".debug_macinfo", display_debug_not_supported },
{ ".debug_frame", display_debug_not_supported },
{ ".debug_str", display_debug_not_supported },
{ ".debug_static_func", display_debug_not_supported },
{ ".debug_static_vars", display_debug_not_supported },
{ ".debug_types", display_debug_not_supported },
{ ".debug_weaknames", display_debug_not_supported }
};
static int
display_debug_section (section, file)
Elf32_Internal_Shdr * section;
FILE * file;
{
char * name = SECTION_NAME (section);
bfd_size_type length;
unsigned char * start;
int i;
length = section->sh_size;
if (length == 0)
{
printf (_("\nSection '%s' has no debugging data.\n"), name);
return 0;
}
GET_DATA_ALLOC (section->sh_offset, length, start, unsigned char *,
"debug section data");
/* See if we know how to display the contents of this section. */
for (i = NUM_ELEM (debug_displays); i--;)
if (strcmp (debug_displays[i].name, name) == 0)
{
debug_displays[i].display (section, start, file);
break;
}
if (i == -1)
printf (_("Unrecognised debug section: %s\n"), name);
free (start);
/* If we loaded in the abbrev section at some point,
we must release it here. */
if (first_abbrev != NULL)
free_abbrevs ();
return 1;
}
static int
process_section_contents (file)
FILE * file;
{
Elf32_Internal_Shdr * section;
unsigned int i;
if (! do_dump)
return 1;
for (i = 0, section = section_headers;
i < elf_header.e_shnum
&& i < num_dump_sects;
i ++, section ++)
{
#ifdef SUPPORT_DISASSEMBLY
if (dump_sects[i] & DISASS_DUMP)
disassemble_section (section, file);
#endif
if (dump_sects[i] & HEX_DUMP)
dump_section (section, file);
if (dump_sects[i] & DEBUG_DUMP)
display_debug_section (section, file);
}
if (i < num_dump_sects)
warn (_("Some sections were not dumped because they do not exist!\n"));
return 1;
}
static void
process_mips_fpe_exception (mask)
int mask;
{
if (mask)
{
int first = 1;
if (mask & OEX_FPU_INEX)
fputs ("INEX", stdout), first = 0;
if (mask & OEX_FPU_UFLO)
printf ("%sUFLO", first ? "" : "|"), first = 0;
if (mask & OEX_FPU_OFLO)
printf ("%sOFLO", first ? "" : "|"), first = 0;
if (mask & OEX_FPU_DIV0)
printf ("%sDIV0", first ? "" : "|"), first = 0;
if (mask & OEX_FPU_INVAL)
printf ("%sINVAL", first ? "" : "|");
}
else
fputs ("0", stdout);
}
static int
process_mips_specific (file)
FILE *file;
{
Elf_Internal_Dyn *entry;
size_t liblist_offset = 0;
size_t liblistno = 0;
size_t conflictsno = 0;
size_t options_offset = 0;
size_t conflicts_offset = 0;
/* We have a lot of special sections. Thanks SGI! */
if (dynamic_segment == NULL)
/* No information available. */
return 0;
for (entry = dynamic_segment; entry->d_tag != DT_NULL; ++entry)
switch (entry->d_tag)
{
case DT_MIPS_LIBLIST:
liblist_offset = entry->d_un.d_val - loadaddr;
break;
case DT_MIPS_LIBLISTNO:
liblistno = entry->d_un.d_val;
break;
case DT_MIPS_OPTIONS:
options_offset = entry->d_un.d_val - loadaddr;
break;
case DT_MIPS_CONFLICT:
conflicts_offset = entry->d_un.d_val - loadaddr;
break;
case DT_MIPS_CONFLICTNO:
conflictsno = entry->d_un.d_val;
break;
default:
break;
}
if (liblist_offset != 0 && liblistno != 0 && do_dynamic)
{
Elf32_External_Lib *elib;
size_t cnt;
GET_DATA_ALLOC (liblist_offset, liblistno * sizeof (Elf32_External_Lib),
elib, Elf32_External_Lib *, "liblist");
printf ("\nSection '.liblist' contains %d entries:\n", liblistno);
fputs (" Library Time Stamp Checksum Version Flags\n",
stdout);
for (cnt = 0; cnt < liblistno; ++cnt)
{
Elf32_Lib liblist;
time_t time;
char timebuf[20];
liblist.l_name = BYTE_GET (elib[cnt].l_name);
time = BYTE_GET (elib[cnt].l_time_stamp);
liblist.l_checksum = BYTE_GET (elib[cnt].l_checksum);
liblist.l_version = BYTE_GET (elib[cnt].l_version);
liblist.l_flags = BYTE_GET (elib[cnt].l_flags);
strftime (timebuf, 20, "%Y-%m-%dT%H:%M:%S", gmtime (&time));
printf ("%3d: %-20s %s %#10lx %-7ld", cnt,
dynamic_strings + liblist.l_name, timebuf,
liblist.l_checksum, liblist.l_version);
if (liblist.l_flags == 0)
puts (" NONE");
else
{
static const struct
{
const char *name;
int bit;
} l_flags_vals[] =
{
{ " EXACT_MATCH", LL_EXACT_MATCH },
{ " IGNORE_INT_VER", LL_IGNORE_INT_VER },
{ " REQUIRE_MINOR", LL_REQUIRE_MINOR },
{ " EXPORTS", LL_EXPORTS },
{ " DELAY_LOAD", LL_DELAY_LOAD },
{ " DELTA", LL_DELTA }
};
int flags = liblist.l_flags;
int fcnt;
for (fcnt = 0;
fcnt < sizeof (l_flags_vals) / sizeof (l_flags_vals[0]);
++fcnt)
if ((flags & l_flags_vals[fcnt].bit) != 0)
{
fputs (l_flags_vals[fcnt].name, stdout);
flags ^= l_flags_vals[fcnt].bit;
}
if (flags != 0)
printf (" %#x", (unsigned int) flags);
puts ("");
}
}
free (elib);
}
if (options_offset != 0)
{
Elf_External_Options *eopt;
Elf_Internal_Shdr *sect = section_headers;
Elf_Internal_Options *iopt;
Elf_Internal_Options *option;
size_t offset;
int cnt;
/* Find the section header so that we get the size. */
while (sect->sh_type != SHT_MIPS_OPTIONS)
++sect;
GET_DATA_ALLOC (options_offset, sect->sh_size, eopt,
Elf_External_Options *, "options");
iopt = (Elf_Internal_Options *) malloc ((sect->sh_size / sizeof (eopt))
* sizeof (*iopt));
if (iopt == NULL)
{
error (_("Out of memory"));
return 0;
}
offset = cnt = 0;
option = iopt;
while (offset < sect->sh_size)
{
Elf_External_Options *eoption;
eoption = (Elf_External_Options *) ((char *) eopt + offset);
option->kind = BYTE_GET (eoption->kind);
option->size = BYTE_GET (eoption->size);
option->section = BYTE_GET (eoption->section);
option->info = BYTE_GET (eoption->info);
offset += option->size;
++option;
++cnt;
}
printf (_("\nSection '%s' contains %d entries:\n"),
string_table + sect->sh_name, cnt);
option = iopt;
while (cnt-- > 0)
{
size_t len;
switch (option->kind)
{
case ODK_NULL:
/* This shouldn't happen. */
printf (" NULL %d %lx", option->section, option->info);
break;
case ODK_REGINFO:
printf (" REGINFO ");
if (elf_header.e_machine == EM_MIPS)
{
/* 32bit form. */
Elf32_External_RegInfo *ereg;
Elf32_RegInfo reginfo;
ereg = (Elf32_External_RegInfo *) (option + 1);
reginfo.ri_gprmask = BYTE_GET (ereg->ri_gprmask);
reginfo.ri_cprmask[0] = BYTE_GET (ereg->ri_cprmask[0]);
reginfo.ri_cprmask[1] = BYTE_GET (ereg->ri_cprmask[1]);
reginfo.ri_cprmask[2] = BYTE_GET (ereg->ri_cprmask[2]);
reginfo.ri_cprmask[3] = BYTE_GET (ereg->ri_cprmask[3]);
reginfo.ri_gp_value = BYTE_GET (ereg->ri_gp_value);
printf ("GPR %08lx GP 0x%lx\n",
reginfo.ri_gprmask,
(unsigned long) reginfo.ri_gp_value);
printf (" CPR0 %08lx CPR1 %08lx CPR2 %08lx CPR3 %08lx\n",
reginfo.ri_cprmask[0], reginfo.ri_cprmask[1],
reginfo.ri_cprmask[2], reginfo.ri_cprmask[3]);
}
else
{
/* 64 bit form. */
Elf64_External_RegInfo *ereg;
Elf64_Internal_RegInfo reginfo;
ereg = (Elf64_External_RegInfo *) (option + 1);
reginfo.ri_gprmask = BYTE_GET (ereg->ri_gprmask);
reginfo.ri_cprmask[0] = BYTE_GET (ereg->ri_cprmask[0]);
reginfo.ri_cprmask[1] = BYTE_GET (ereg->ri_cprmask[1]);
reginfo.ri_cprmask[2] = BYTE_GET (ereg->ri_cprmask[2]);
reginfo.ri_cprmask[3] = BYTE_GET (ereg->ri_cprmask[3]);
reginfo.ri_gp_value = BYTE_GET (ereg->ri_gp_value);
printf ("GPR %08lx GP 0x",
reginfo.ri_gprmask);
printf_vma (reginfo.ri_gp_value);
printf ("\n");
printf (" CPR0 %08lx CPR1 %08lx CPR2 %08lx CPR3 %08lx\n",
reginfo.ri_cprmask[0], reginfo.ri_cprmask[1],
reginfo.ri_cprmask[2], reginfo.ri_cprmask[3]);
}
++option;
continue;
case ODK_EXCEPTIONS:
fputs (" EXCEPTIONS fpe_min(", stdout);
process_mips_fpe_exception (option->info & OEX_FPU_MIN);
fputs (") fpe_max(", stdout);
process_mips_fpe_exception ((option->info & OEX_FPU_MAX) >> 8);
fputs (")", stdout);
if (option->info & OEX_PAGE0)
fputs (" PAGE0", stdout);
if (option->info & OEX_SMM)
fputs (" SMM", stdout);
if (option->info & OEX_FPDBUG)
fputs (" FPDBUG", stdout);
if (option->info & OEX_DISMISS)
fputs (" DISMISS", stdout);
break;
case ODK_PAD:
fputs (" PAD ", stdout);
if (option->info & OPAD_PREFIX)
fputs (" PREFIX", stdout);
if (option->info & OPAD_POSTFIX)
fputs (" POSTFIX", stdout);
if (option->info & OPAD_SYMBOL)
fputs (" SYMBOL", stdout);
break;
case ODK_HWPATCH:
fputs (" HWPATCH ", stdout);
if (option->info & OHW_R4KEOP)
fputs (" R4KEOP", stdout);
if (option->info & OHW_R8KPFETCH)
fputs (" R8KPFETCH", stdout);
if (option->info & OHW_R5KEOP)
fputs (" R5KEOP", stdout);
if (option->info & OHW_R5KCVTL)
fputs (" R5KCVTL", stdout);
break;
case ODK_FILL:
fputs (" FILL ", stdout);
/* XXX Print content of info word? */
break;
case ODK_TAGS:
fputs (" TAGS ", stdout);
/* XXX Print content of info word? */
break;
case ODK_HWAND:
fputs (" HWAND ", stdout);
if (option->info & OHWA0_R4KEOP_CHECKED)
fputs (" R4KEOP_CHECKED", stdout);
if (option->info & OHWA0_R4KEOP_CLEAN)
fputs (" R4KEOP_CLEAN", stdout);
break;
case ODK_HWOR:
fputs (" HWOR ", stdout);
if (option->info & OHWA0_R4KEOP_CHECKED)
fputs (" R4KEOP_CHECKED", stdout);
if (option->info & OHWA0_R4KEOP_CLEAN)
fputs (" R4KEOP_CLEAN", stdout);
break;
case ODK_GP_GROUP:
printf (" GP_GROUP %#06lx self-contained %#06lx",
option->info & OGP_GROUP,
(option->info & OGP_SELF) >> 16);
break;
case ODK_IDENT:
printf (" IDENT %#06lx self-contained %#06lx",
option->info & OGP_GROUP,
(option->info & OGP_SELF) >> 16);
break;
default:
/* This shouldn't happen. */
printf (" %3d ??? %d %lx",
option->kind, option->section, option->info);
break;
}
len = sizeof (*eopt);
while (len < option->size)
if (((char *) option)[len] >= ' '
&& ((char *) option)[len] < 0x7f)
printf ("%c", ((char *) option)[len++]);
else
printf ("\\%03o", ((char *) option)[len++]);
fputs ("\n", stdout);
++option;
}
free (eopt);
}
if (conflicts_offset != 0 && conflictsno != 0)
{
Elf32_External_Conflict *econf32;
Elf64_External_Conflict *econf64;
Elf32_Conflict *iconf;
size_t cnt;
if (dynamic_symbols == NULL)
{
error (_("conflict list with without table"));
return 0;
}
iconf = (Elf32_Conflict *) malloc (conflictsno * sizeof (*iconf));
if (iconf == NULL)
{
error (_("Out of memory"));
return 0;
}
if (binary_class == ELFCLASS32)
{
GET_DATA_ALLOC (conflicts_offset, conflictsno * sizeof (*econf32),
econf32, Elf32_External_Conflict *, "conflict");
for (cnt = 0; cnt < conflictsno; ++cnt)
iconf[cnt] = BYTE_GET (econf32[cnt]);
}
else
{
GET_DATA_ALLOC (conflicts_offset, conflictsno * sizeof (*econf64),
econf64, Elf64_External_Conflict *, "conflict");
for (cnt = 0; cnt < conflictsno; ++cnt)
iconf[cnt] = BYTE_GET (econf64[cnt]);
}
printf (_("\nSection '.conflict' contains %d entries:\n"), conflictsno);
puts (_(" Num: Index Value Name"));
for (cnt = 0; cnt < conflictsno; ++cnt)
{
Elf_Internal_Sym *psym = &dynamic_symbols[iconf[cnt]];
printf ("%5u: %8lu %#10lx %s\n",
cnt, iconf[cnt], (unsigned long) psym->st_value,
dynamic_strings + psym->st_name);
}
free (iconf);
}
return 1;
}
static int
process_arch_specific (file)
FILE *file;
{
switch (elf_header.e_machine)
{
case EM_MIPS:
case EM_MIPS_RS4_BE:
return process_mips_specific (file);
break;
default:
break;
}
return 1;
}
static int
get_file_header (file)
FILE * file;
{
Elf32_External_Ehdr ehdr;
if (fread (& ehdr, sizeof (ehdr), 1, file) != 1)
return 0;
memcpy (elf_header.e_ident, ehdr.e_ident, EI_NIDENT);
if (elf_header.e_ident [EI_DATA] == ELFDATA2LSB)
byte_get = byte_get_little_endian;
else
byte_get = byte_get_big_endian;
elf_header.e_entry = BYTE_GET (ehdr.e_entry);
elf_header.e_phoff = BYTE_GET (ehdr.e_phoff);
elf_header.e_shoff = BYTE_GET (ehdr.e_shoff);
elf_header.e_version = BYTE_GET (ehdr.e_version);
elf_header.e_flags = BYTE_GET (ehdr.e_flags);
elf_header.e_type = BYTE_GET (ehdr.e_type);
elf_header.e_machine = BYTE_GET (ehdr.e_machine);
elf_header.e_ehsize = BYTE_GET (ehdr.e_ehsize);
elf_header.e_phentsize = BYTE_GET (ehdr.e_phentsize);
elf_header.e_phnum = BYTE_GET (ehdr.e_phnum);
elf_header.e_shentsize = BYTE_GET (ehdr.e_shentsize);
elf_header.e_shnum = BYTE_GET (ehdr.e_shnum);
elf_header.e_shstrndx = BYTE_GET (ehdr.e_shstrndx);
return 1;
}
static void
process_file (file_name)
char * file_name;
{
FILE * file;
struct stat statbuf;
unsigned int i;
if (stat (file_name, & statbuf) < 0)
{
error (_("Cannot stat input file %s.\n"), file_name);
return;
}
file = fopen (file_name, "rb");
if (file == NULL)
{
error (_("Input file %s not found.\n"), file_name);
return;
}
if (! get_file_header (file))
{
error (_("%s: Failed to read file header\n"), file_name);
fclose (file);
return;
}
/* Initialise per file variables. */
for (i = NUM_ELEM (version_info); i--;)
version_info[i] = 0;
for (i = NUM_ELEM (dynamic_info); i--;)
dynamic_info[i] = 0;
/* Process the file. */
if (show_name)
printf (_("\nFile: %s\n"), file_name);
if (! process_file_header ())
{
fclose (file);
return;
}
process_section_headers (file);
process_program_headers (file);
process_dynamic_segment (file);
process_relocs (file);
process_symbol_table (file);
process_syminfo (file);
process_version_sections (file);
process_section_contents (file);
process_arch_specific (file);
fclose (file);
if (section_headers)
{
free (section_headers);
section_headers = NULL;
}
if (string_table)
{
free (string_table);
string_table = NULL;
}
if (dynamic_strings)
{
free (dynamic_strings);
dynamic_strings = NULL;
}
if (dynamic_symbols)
{
free (dynamic_symbols);
dynamic_symbols = NULL;
}
if (dynamic_syminfo)
{
free (dynamic_syminfo);
dynamic_syminfo = NULL;
}
}
#ifdef SUPPORT_DISASSEMBLY
/* Needed by the i386 disassembler. For extra credit, someone could
fix this so that we insert symbolic addresses here, esp for GOT/PLT
symbols */
void
print_address (unsigned int addr, FILE * outfile)
{
fprintf (outfile,"0x%8.8x", addr);
}
/* Needed by the i386 disassembler. */
void
db_task_printsym (unsigned int addr)
{
print_address (addr, stderr);
}
#endif
int
main (argc, argv)
int argc;
char ** argv;
{
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
#endif
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
parse_args (argc, argv);
if (optind < (argc - 1))
show_name = 1;
while (optind < argc)
process_file (argv [optind ++]);
if (dump_sects != NULL)
free (dump_sects);
return 0;
}
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