along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA. */
-
-#include "bfd.h"
-#include "bucomm.h"
+\f
#include <assert.h>
-#include <sys/mman.h>
#include <sys/stat.h>
+#include <stdio.h>
#include "readelf.h"
+#include "bucomm.h"
#include "getopt.h"
#ifdef ANSI_PROTOTYPES
#include <varargs.h>
#endif
-unsigned int dynamic_addr;
-unsigned int dynamic_size;
-char * pint = "";
-char * program_name = "readelf";
-
-int dynamic_info [DT_JMPREL + 1];
-int version_info [16];
-
-int must_swap = 0;
-
-unsigned int rel_size;
-int loadaddr = -1;
-
-unsigned int rela_addr;
-unsigned int rela_size;
-char * strtab;
-int symtab_index;
-int lastmapped;
-char * header;
-
+unsigned int dynamic_addr;
+unsigned int dynamic_size;
+char * dynamic_strings;
+Elf_Sym * dynamic_symbols;
+char program_interpreter [64];
+char * program_name = "readelf";
+int dynamic_info [DT_JMPREL + 1];
+int version_info [16];
+int must_swap = 0;
+int loadaddr = 0;
+unsigned int rela_addr;
+unsigned int rela_size;
+Elf_Ehdr elf_header;
+Elf_Shdr * section_headers;
+char * string_table;
Elf_Dyn * dpnt;
Elf_Rel * rpnt;
-Elf_Shdr * elf_sections;
-Elf_Ehdr * epnt;
-Elf_Sym * symtab;
-
-int show_name;
-int do_dynamic;
-int do_syms;
-int do_reloc;
-int do_section;
-int do_load;
-int do_using_dynamic;
-int do_header;
-int do_dump;
-int do_version;
-long int expected_endian;
-
-char * dyntype[] =
-{
- "NULL", "NEEDED","PLTRELSZ","PLTGOT","HASH","STRTAB","SYMTAB","RELA",
- "RELASZ","RELAENT","STRSZ","SYMENT","INIT","FINI","SONAME","RPATH",
- "SYMBOLIC","REL","RELSZ","RELENT","PLTREL","DEBUG","TEXTREL","JMPREL"
-};
-
-char * vertype[] =
-{
- "VERNEEDNUM", "VERNEED", "VERDEFNUM", "VERDEF",
- "", "", "", "", "", "", "", "", "", "", "", "VERSYM"
-};
-
-char * filtertype[] =
-{
- "FILTER", "USED", "AUXILIARY"
-};
+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;
+long int expected_endian;
-char * sttinfo[] = {"NOTYPE","OBJECT","FUNC","SECTION","FILE"};
-char * stbinfo[] = {"LOCAL","GLOBAL","WEAK"};
-
-#define SECTION_NAME(X) (& header [lastmapped + (X)->sh_name])
+#define SECTION_NAME(X) (string_table + (X)->sh_name)
#define NUM_DUMP_SECTS 100
char dump_sects [NUM_DUMP_SECTS];
#define DISASS_DUMP 2
/* Forward declarations for dumb compilers. */
+static char * get_dynamic_type PARAMS ((unsigned long));
static char * get_i386_rel_type PARAMS ((bfd_vma rtype));
static char * get_m68k_rel_type PARAMS ((bfd_vma rtype));
static char * get_sparc_rel_type PARAMS ((bfd_vma rtype));
static char * get_mn10300_rel_type PARAMS ((bfd_vma rtype));
static char * get_mn10200_rel_type PARAMS ((bfd_vma rtype));
static char * get_ppc_rel_type PARAMS ((bfd_vma rtype));
-static void dump_relocations PARAMS ((Elf_Rel * rpnt, int rel_size));
-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 e_flags, unsigned e_machine));
-static char * get_segment_type PARAMS ((unsigned long p_type));
+static void dump_relocations
+ PARAMS ((FILE *, unsigned long, unsigned long, Elf_Sym *, char *));
+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 char * get_segment_type PARAMS ((unsigned long p_type));
static 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_elf_header PARAMS ((void));
-static void process_program_headers PARAMS ((void));
-static void process_section_headers PARAMS ((void));
-static void process_dynamic_segment PARAMS ((void));
-static void process_symbol_table PARAMS ((void));
-static void process_section_contents PARAMS ((void));
+static int process_file_header PARAMS ((void));
+static void process_program_headers PARAMS ((FILE *));
+static void process_section_headers PARAMS ((FILE *));
+static void process_dynamic_segment PARAMS ((FILE *));
+static void process_symbol_table PARAMS ((FILE *));
+static void process_section_contents PARAMS ((FILE *));
static void process_file PARAMS ((char * file_name));
+static void process_relocs PARAMS ((FILE *));
+static void process_version_sections PARAMS ((FILE *));
+static char * get_ver_flags PARAMS ((unsigned short flags));
+static char * get_symbol_index_type PARAMS ((unsigned short type));
+#define NUM_ELEM(array) (sizeof (array) / sizeof ((array)[0]))
#define SWAP2(val) ( (((val) << 8) & (0xff << 8)) \
| (((val) >> 8) & (0xff << 0)))
| (((val) >> 8) & (0xff << 8)) \
| (((val) >> 24) & (0xff << 0)))
-/* Warning: This macro assumes 8 bits in a char. */
-#define BYTE_SWAP(pointer, field) \
- if (sizeof ((pointer)->field) == 2) \
+/* Warning: This macro assumes 8 bits in a char,
+ and at least 16 bits in a short,
+ and at least 32 bits in a long. */
+#define BYTE_SWAP(structure, field) \
+ if (sizeof ((structure).field) == 2) \
{ \
- unsigned short val = (pointer)->field ; \
- new_header->field = SWAP2 (val); \
+ unsigned short val = (structure).field; \
+ (structure).field = SWAP2 (val); \
} \
- else if (sizeof ((pointer)->field) != 4) \
+ else if (sizeof ((structure).field) != 4) \
abort (); \
else \
{ \
- unsigned long val = (pointer)->field ; \
- new_header->field = SWAP4 (val); \
+ unsigned long val = (structure).field; \
+ (structure).field = SWAP4 (val); \
}
+#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; \
+ } \
+ \
+ var = (type) malloc (size); \
+ \
+ if (var == NULL) \
+ { \
+ error (_("Out of memory allocating %d bytes for %s\n"), size, reason); \
+ return; \
+ } \
+ \
+ if (fread (var, size, 1, file) != 1) \
+ { \
+ error (_("Unable to read in %d bytes of %s\n"), size, reason); \
+ free (var); \
+ var = NULL; \
+ return; \
+ }
+
+
+#define GET_DATA(offset, var, reason) \
+ if (fseek (file, offset, SEEK_SET)) \
+ { \
+ error (_("Unable to seek to %x for %s\n"), offset, reason); \
+ return; \
+ } \
+ else if (fread (& var, sizeof (var), 1, file) != 1) \
+ { \
+ error (_("Unable to read data at %x for %s\n"), offset, reason); \
+ return; \
+ }
#ifdef ANSI_PROTOTYPES
static void
}
+/* Display the contents of the relocation data
+ found at the specified offset. */
static void
-dump_relocations (rpnt, rel_size)
- Elf_Rel * rpnt;
- int rel_size;
+dump_relocations (file, rel_offset, rel_size, symtab, strtab)
+ FILE * file;
+ unsigned long rel_offset;
+ unsigned long rel_size;
+ Elf_Sym * symtab;
+ char * strtab;
{
- int i;
- int is_rela;
- Elf_Rela * rapnt;
- Elf_Rela * relocs = NULL;
+ unsigned i;
+ int is_rela;
+ Elf_Rel * rels;
+ Elf_Rela * relas;
- rapnt = (Elf_Rela *) rpnt;
-
- /* Compute number of relocations. */
- switch (epnt->e_machine)
+ /* Compute number of relocations and read them in. */
+ switch (elf_header.e_machine)
{
case EM_386:
case EM_486:
case EM_CYGNUS_M32R:
case EM_CYGNUS_D10V:
+ GET_DATA_ALLOC (rel_offset, rel_size, rels, Elf_Rel *, "relocs");
+
rel_size = rel_size / sizeof (Elf_Rel);
if (must_swap)
{
- Elf_Rel * new_header = malloc (sizeof (* new_header) * rel_size);
-
- if (new_header == NULL)
- {
- error (_("out of memory\n"));
- return;
- }
-
- memcpy (new_header, rpnt, sizeof (* new_header) * rel_size);
-
- rpnt = new_header;
- relocs = (Elf_Rela *) new_header;
-
for (i = 0; i < rel_size; i++)
{
- BYTE_SWAP (rpnt + i, r_offset);
- BYTE_SWAP (rpnt + i, r_info);
-
- new_header ++;
+ BYTE_SWAP (rels[i], r_offset);
+ BYTE_SWAP (rels[i], r_info);
}
}
is_rela = 0;
+ relas = (Elf_Rela *) rels;
break;
case EM_68K:
case EM_CYGNUS_MN10200:
case EM_CYGNUS_MN10300:
case EM_SH:
+ GET_DATA_ALLOC (rel_offset, rel_size, relas, Elf_Rela *, "relocs");
+
rel_size = rel_size / sizeof (Elf_Rela);
if (must_swap)
{
- Elf_Rela * new_header = malloc (sizeof (* new_header) * rel_size);
-
- if (new_header == NULL)
- {
- error (_("out of memory\n"));
- return;
- }
-
- memcpy (new_header, rpnt, sizeof (* new_header) * rel_size);
-
- relocs = rapnt = new_header;
-
- for (i = rel_size; i--;)
+ for (i = 0; i < rel_size; i++)
{
- BYTE_SWAP (new_header, r_offset);
- BYTE_SWAP (new_header, r_info);
- BYTE_SWAP (new_header, r_addend);
-
- new_header ++;
+ BYTE_SWAP (relas [i], r_offset);
+ BYTE_SWAP (relas [i], r_info);
+ BYTE_SWAP (relas [i], r_addend);
}
}
is_rela = 1;
+ rels = (Elf_Rel *) relas;
break;
default:
}
if (is_rela)
- printf (_(" Offset Value Type Symbol's Value Symbol Name Addend\n"));
+ printf
+ (_(" Offset Value Type Symbol's Value Symbol's Name Addend\n"));
else
- printf (_(" Offset Value Type Symbol's Value Symbol Name\n"));
+ printf
+ (_(" Offset Value Type Symbol's Value Symbol's Name\n"));
for (i = 0; i < rel_size; i++)
{
- char * rtype;
-
+ char * rtype;
+ bfd_vma offset;
+ bfd_vma info;
+ int symtab_index;
+
if (is_rela)
- rpnt = (Elf_Rel *) rapnt;
+ {
+ offset = relas [i].r_offset;
+ info = relas [i].r_info;
+ }
+ else
+ {
+ offset = rels [i].r_offset;
+ info = rels [i].r_info;
+ }
- printf (" %5.5lx %5.5lx ", rpnt->r_offset, rpnt->r_info);
+ printf (" %8.8lx %5.5lx ", offset, info);
- switch (epnt->e_machine)
+ switch (elf_header.e_machine)
{
default:
- rtype = "UGG!";
+ rtype = "<unknown>";
break;
case EM_CYGNUS_M32R:
- rtype = get_m32r_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_m32r_rel_type (ELF32_R_TYPE (info));
break;
case EM_386:
case EM_486:
- rtype = get_i386_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_i386_rel_type (ELF32_R_TYPE (info));
break;
case EM_68K:
- rtype = get_m68k_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_m68k_rel_type (ELF32_R_TYPE (info));
break;
case EM_SPARC:
- rtype = get_sparc_rel_type (ELF32_R_TYPE (rapnt->r_info));
+ rtype = get_sparc_rel_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_V850:
- rtype = get_v850_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_v850_rel_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_D10V:
- rtype = get_d10v_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_d10v_rel_type (ELF32_R_TYPE (info));
break;
/* start-sanitize-d30v */
case EM_CYGNUS_D30V:
- rtype = get_d30v_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_d30v_rel_type (ELF32_R_TYPE (info));
break;
/* end-sanitize-d30v */
case EM_SH:
- rtype = get_sh_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_sh_rel_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_MN10300:
- rtype = get_mn10300_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_mn10300_rel_type (ELF32_R_TYPE (info));
break;
case EM_CYGNUS_MN10200:
- rtype = get_mn10200_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_mn10200_rel_type (ELF32_R_TYPE (info));
break;
case EM_PPC:
- rtype = get_ppc_rel_type (ELF32_R_TYPE (rpnt->r_info));
+ rtype = get_ppc_rel_type (ELF32_R_TYPE (info));
break;
}
- printf ("%-18s", rtype);
+ printf ("%-21.21s", rtype);
- symtab_index = ELF32_R_SYM (rpnt->r_info);
+ symtab_index = ELF32_R_SYM (info);
- if (symtab_index)
+ if (symtab_index && symtab != NULL)
{
- Elf_Sym ssym;
Elf_Sym * psym;
-
+
psym = symtab + symtab_index;
- if (must_swap)
- {
- Elf_Sym * new_header = & ssym;
-
- ssym = * psym;
-
- BYTE_SWAP (psym, st_name);
- BYTE_SWAP (psym, st_value);
- /* BYTE_SWAP (psym, st_size); */
- BYTE_SWAP (psym, st_shndx);
-
- psym = new_header;
- }
-
+ printf (" %08lx ", psym->st_value);
+
if (psym->st_name == 0)
- printf (" %08lx %-15s", psym->st_value,
- SECTION_NAME (elf_sections + psym->st_shndx));
+ printf ("%-17.17s",
+ SECTION_NAME (section_headers + psym->st_shndx));
+ else if (strtab == NULL)
+ printf (_("<string table index %d>"), psym->st_name);
else
- printf (" %08lx %-15s", psym->st_value, strtab + psym->st_name);
+ printf ("%-17.17s", strtab + psym->st_name);
if (is_rela)
- printf (" + %lx", rapnt->r_addend);
+ printf (" + %lx", relas [i].r_addend);
}
putchar ('\n');
- rapnt ++;
- rpnt ++;
}
- if (relocs != NULL)
- free (relocs);
+ free (relas);
+}
+
+static 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_VERDEF: return _("VERDEF");
+ case DT_VERDEFNUM: return _("VERDEFNUM");
+ case DT_VERNEED: return _("VERNEED");
+ case DT_VERNEEDNUM: return _("VERNEEDNUM");
+ case DT_VERSYM: return _("VERSYN");
+ case DT_AUXILIARY: return _("AUXILARY");
+ case DT_FILTER: return _("FILTER");
+
+ default:
+ if ((type >= DT_LOPROC) && (type <= DT_HIPROC))
+ sprintf (buff, _("Processor Specific: (%x)"), type);
+ else
+ sprintf (buff, _("<unknown>: %x"), type);
+ return buff;
+ }
}
static char *
case EM_MIPS: return "MIPS R3000 big-endian";
case EM_S370: return "Amdahl";
case EM_MIPS_RS4_BE: return "MIPS R400 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_SPARCV9: return "Sparc v9";
+ case EM_V800: return "NEC V800";
+ case EM_FR20: return "Fujitsu FR20";
+ case EM_RH32: return "TRW RH32";
+ case EM_MMA: return "Fujitsu MMA";
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_ALPHA: return "Alpha";
case EM_CYGNUS_D10V: return "d10v";
/* start-sanitize-d30v */
case PT_INTERP: return _("Interpreter");
case PT_NOTE: return _("Auxillary Info");
case PT_SHLIB: return _("Shared Library");
- case PT_PHDR: return _("Program Headers");
+ case PT_PHDR: return _("Program Header");
default:
if ((p_type >= PT_LOPROC) && (p_type <= PT_HIPROC))
case SHT_PROGBITS: return _("Program data");
case SHT_SYMTAB: return _("Symbol table");
case SHT_STRTAB: return _("String table");
- case SHT_RELA: return _("Relocs, addends");
- case SHT_HASH: return _("Symbol hash table");
- case SHT_DYNAMIC: return _("Dynamic linking info");
+ case SHT_RELA: return _("Relocations");
+ case SHT_HASH: return _("Symbol hashes");
+ case SHT_DYNAMIC: return _("Dynamic info");
case SHT_NOTE: return _("Notes");
case SHT_NOBITS: return _("Space, no data");
- case SHT_REL: return _("Relocs, no addends");
- case SHT_SHLIB: return _("Shared Library info");
- case SHT_DYNSYM: return _("Dynamic linker symbols");
+ case SHT_REL: return _("Relocations");
+ case SHT_SHLIB: return _("Shared lib info");
+ case SHT_DYNSYM: return _("Dynamic symbols");
case SHT_GNU_verdef: return _("Version definition");
case SHT_GNU_verneed: return _("Version needs");
case SHT_GNU_versym: return _("Version symbols");
default:
if ((sh_type >= SHT_LOPROC) && (sh_type <= SHT_HIPROC))
- return _("processor specific");
+ sprintf (buff, _("cpu defined (%d)"), sh_type - SHT_LOPROC);
else if ((sh_type >= SHT_LOUSER) && (sh_type <= SHT_HIUSER))
- return _("application specific");
+ sprintf (buff, _("app defined (%d)"), sh_type - SHT_LOUSER);
else
- {
- sprintf (buff, _("<unknown>: %x"), sh_type);
- return buff;
- }
+ sprintf (buff, _("<unknown>: %x"), sh_type);
+ return buff;
}
}
{"all", no_argument, 0, 'a'},
{"file-header", no_argument, 0, 'h'},
{"program-headers", no_argument, 0, 'l'},
+ {"headers", no_argument, 0, 'e'},
{"segments", no_argument, 0, 'l'},
{"sections", no_argument, 0, 'S'},
+ {"section-headers", no_argument, 0, 'S'},
{"symbols", no_argument, 0, 's'},
{"relocs", no_argument, 0, 'r'},
{"dynamic", no_argument, 0, 'd'},
{
fprintf (stdout, _("Usage: readelf {options} elf-file(s)\n"));
fprintf (stdout, _(" Options are:\n"));
- fprintf (stdout, _(" -a or --all Display all the information\n"));
+ fprintf (stdout, _(" -a or --all Equivalent to: -h -l -S -s -r -d -V\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 --sections Display the sections' 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 --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 section (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"));
char ** argv;
{
int c;
-
+
if (argc < 2)
usage ();
while ((c = getopt_long
- (argc, argv, "rsahldSDx:i:vV", options, NULL)) != EOF)
+ (argc, argv, "ersahldSDx:i:vV", options, NULL)) != EOF)
{
char * cp;
int section;
break;
case 'a':
- do_syms++;
- do_reloc++;
- do_dynamic++;
- do_header++;
- do_section++;
- do_load++;
- do_version++;
+ do_syms ++;
+ do_reloc ++;
+ do_dynamic ++;
+ do_header ++;
+ do_sections ++;
+ do_segments ++;
+ do_version ++;
+ break;
+ case 'e':
+ do_header ++;
+ do_sections ++;
+ do_segments ++;
break;
case 'D':
- do_using_dynamic++;
+ do_using_dynamic ++;
break;
case 'r':
- do_reloc++;
+ do_reloc ++;
break;
case 'h':
- do_header++;
+ do_header ++;
break;
case 'l':
- do_load++;
+ do_segments ++;
break;
case 's':
- do_syms++;
+ do_syms ++;
break;
case 'S':
- do_section++;
+ do_sections ++;
break;
case 'd':
- do_dynamic++;
+ do_dynamic ++;
break;
case 'x':
do_dump ++;
}
}
- if (!do_dynamic && !do_syms && !do_reloc && !do_section
- && !do_load && !do_header && !do_dump && !do_version)
+ if (!do_dynamic && !do_syms && !do_reloc && !do_sections
+ && !do_segments && !do_header && !do_dump && !do_version)
usage ();
else if (argc < 3)
{
}
}
+/* Decode the data held in 'elf_header'. */
static int
-process_elf_header ()
+process_file_header ()
{
- if ( epnt->e_ident [EI_MAG0] != ELFMAG0
- || epnt->e_ident [EI_MAG1] != ELFMAG1
- || epnt->e_ident [EI_MAG2] != ELFMAG2
- || epnt->e_ident [EI_MAG3] != ELFMAG3)
+ 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"));
+ error
+ (_("Not an ELF file - it has the wrong magic bytes at the start\n"));
return 0;
}
- if (epnt->e_ident [EI_CLASS] != ELFCLASS32)
+ if (elf_header.e_ident [EI_CLASS] != ELFCLASS32)
{
error (_("Not a 32 bit ELF file\n"));
return 0;
}
- if (epnt->e_ident [EI_DATA] != expected_endian)
- must_swap = 1;
-
- if (must_swap)
+ if (elf_header.e_ident [EI_DATA] != expected_endian)
{
- Elf_Ehdr * new_header = malloc (sizeof (* new_header));
-
- if (new_header == NULL)
- {
- error (_("out of memory\n"));
- return 0;
- }
-
- memcpy (new_header, epnt, sizeof (* new_header));
-
- BYTE_SWAP (epnt, e_type);
- BYTE_SWAP (epnt, e_machine);
- BYTE_SWAP (epnt, e_version);
- BYTE_SWAP (epnt, e_entry);
- BYTE_SWAP (epnt, e_phoff);
- BYTE_SWAP (epnt, e_shoff);
- BYTE_SWAP (epnt, e_flags);
- BYTE_SWAP (epnt, e_ehsize);
- BYTE_SWAP (epnt, e_phentsize);
- BYTE_SWAP (epnt, e_phnum);
- BYTE_SWAP (epnt, e_shentsize);
- BYTE_SWAP (epnt, e_shnum);
- BYTE_SWAP (epnt, e_shstrndx);
-
- epnt = new_header;
+ must_swap = 1;
+
+ BYTE_SWAP (elf_header, e_type);
+ BYTE_SWAP (elf_header, e_machine);
+ BYTE_SWAP (elf_header, e_version);
+ BYTE_SWAP (elf_header, e_entry);
+ BYTE_SWAP (elf_header, e_phoff);
+ BYTE_SWAP (elf_header, e_shoff);
+ BYTE_SWAP (elf_header, e_flags);
+ BYTE_SWAP (elf_header, e_ehsize);
+ BYTE_SWAP (elf_header, e_phentsize);
+ BYTE_SWAP (elf_header, e_phnum);
+ BYTE_SWAP (elf_header, e_shentsize);
+ BYTE_SWAP (elf_header, e_shnum);
+ BYTE_SWAP (elf_header, e_shstrndx);
}
if (do_header)
{
int i;
- printf (_("ELF Header....\n"));
- printf (_(" Magic: "));
+ printf (_("ELF Header:\n"));
+ printf (_(" Magic: "));
for (i = 0; i < EI_NIDENT; i ++)
- printf ("%2.2x ", epnt->e_ident [i]);
+ printf ("%2.2x ", elf_header.e_ident [i]);
printf ("\n");
- printf (_(" Type: %s\n"), get_file_type (epnt->e_type));
- printf (_(" Machine: %s\n"), get_machine_name (epnt->e_machine));
- printf (_(" Version: 0x%lx\n"), (unsigned long)epnt->e_version);
- printf (_(" Data: %s\n"), get_machine_data (epnt->e_ident [EI_DATA]));
- printf (_(" Entry point address: 0x%lx\n"), (unsigned long)epnt->e_entry);
- printf (_(" Start of program headers: %ld (bytes into file)\n"), (long)epnt->e_phoff);
- printf (_(" Start of section headers: %ld (bytes into file)\n"), (long)epnt->e_shoff);
- printf (_(" Flags: 0x%lx%s\n"), (unsigned long)epnt->e_flags,
- get_machine_flags (epnt->e_flags, epnt->e_machine));
- printf (_(" Size of this header: %ld (bytes)\n"), (long)epnt->e_ehsize);
- printf (_(" Size of program headers: %ld (bytes)\n"), (long)epnt->e_phentsize);
- printf (_(" Number of program headers: %ld\n"), (long)epnt->e_phnum);
- printf (_(" Size of section headers: %ld (bytes)\n"), (long)epnt->e_shentsize);
- printf (_(" Number of section headers: %ld\n"), (long)epnt->e_shnum);
- printf (_(" Section header string table index: %ld\n"), (long)epnt->e_shstrndx);
+ 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"),
+ get_machine_data (elf_header.e_ident [EI_DATA]));
+ if (must_swap)
+ printf (_(" [byte swapping]"));
+ putchar ('\n');
+
+ 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);
}
return 1;
static void
-process_program_headers ()
+process_program_headers (file)
+ FILE * file;
{
- Elf_Phdr * elf_segments;
- Elf_Phdr * ppnt;
- int i;
+ Elf_Phdr * program_headers;
+ Elf_Phdr * segment;
+ int i;
- if (epnt->e_phnum == 0)
+ if (elf_header.e_phnum == 0)
{
- if (do_load)
- printf (_("\nThere are no program headers in this file\n"));
+ if (do_segments)
+ printf (_("\nThere are no program headers in this file.\n"));
return;
}
- if (do_load && !do_header)
+ if (do_segments && !do_header)
{
- printf (_("\nElf file is %s\n"), get_file_type (epnt->e_type));
- printf (_("Entry point 0x%x\n"), epnt->e_entry);
+ printf (_("\nElf file is %s\n"), get_file_type (elf_header.e_type));
+ printf (_("Entry point 0x%x\n"), elf_header.e_entry);
printf (_("There are %d program headers, starting at offset %x:\n"),
- epnt->e_phnum, epnt->e_phoff);
+ elf_header.e_phnum, elf_header.e_phoff);
}
+ GET_DATA_ALLOC (elf_header.e_phoff, elf_header.e_phentsize * elf_header.e_phnum,
+ program_headers, Elf_Phdr *, "program headers");
+
if (must_swap)
{
- Elf_Phdr * new_header = malloc (sizeof (* new_header) * epnt->e_phnum);
-
- if (new_header == NULL)
- {
- error (_("out of memory\n"));
- return;
- }
-
- memcpy (new_header, & header [epnt->e_phoff],
- sizeof (* new_header) * epnt->e_phnum);
-
- elf_segments = ppnt = new_header;
-
- for (i = 0; i < epnt->e_phnum; i++)
+ for (i = 0; i < elf_header.e_phnum; i++)
{
- BYTE_SWAP (ppnt + i, p_type);
- BYTE_SWAP (ppnt + i, p_flags);
- BYTE_SWAP (ppnt + i, p_offset);
- BYTE_SWAP (ppnt + i, p_vaddr);
- BYTE_SWAP (ppnt + i, p_paddr);
- BYTE_SWAP (ppnt + i, p_filesz);
- BYTE_SWAP (ppnt + i, p_memsz);
- BYTE_SWAP (ppnt + i, p_align);
-
- new_header ++;
+ BYTE_SWAP (program_headers [i], p_type);
+ BYTE_SWAP (program_headers [i], p_flags);
+ BYTE_SWAP (program_headers [i], p_offset);
+ BYTE_SWAP (program_headers [i], p_vaddr);
+ BYTE_SWAP (program_headers [i], p_paddr);
+ BYTE_SWAP (program_headers [i], p_filesz);
+ BYTE_SWAP (program_headers [i], p_memsz);
+ BYTE_SWAP (program_headers [i], p_align);
}
}
- else
- {
- ppnt = (Elf_Phdr *) & header [epnt->e_phoff];
- elf_segments = NULL;
- }
- if (do_load)
+ if (do_segments)
{
- printf (_("\nProgram Header%s....\n"), epnt->e_phnum > 1 ? "s" : "");
- printf (_(" Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align\n"));
+ 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;
- for (i = 0; i < epnt->e_phnum; i++)
+ for (i = 0; i < elf_header.e_phnum; i++)
{
- if (loadaddr == -1 && ppnt->p_type == PT_LOAD)
- loadaddr = (ppnt->p_vaddr & 0xfffff000)
- - (ppnt->p_offset & 0xfffff000);
+ segment = program_headers + i;
- if (do_load)
+ if (do_segments)
{
- printf (" %-10s ", get_segment_type (ppnt->p_type));
- printf ("0x%5.5lx ",ppnt->p_offset);
- printf ("0x%8.8lx ",ppnt->p_vaddr);
- printf ("0x%8.8lx ",ppnt->p_paddr);
- printf ("0x%5.5lx 0x%5.5lx ",ppnt->p_filesz, ppnt->p_memsz);
+ printf (" %-16.16s ", get_segment_type (segment->p_type));
+ printf ("0x%5.5lx ", segment->p_offset);
+ printf ("0x%8.8lx ", segment->p_vaddr);
+ printf ("0x%8.8lx ", segment->p_paddr);
+ printf ("0x%5.5lx 0x%5.5lx ", segment->p_filesz, segment->p_memsz);
printf ("%c%c%c ",
- (ppnt->p_flags & 4 ? 'R' : ' '),
- (ppnt->p_flags & 2 ? 'W' : ' '),
- (ppnt->p_flags & 1 ? 'E' : ' '));
- printf ("%#lx", ppnt->p_align);
+ (segment->p_flags & PF_R ? 'R' : ' '),
+ (segment->p_flags & PF_W ? 'W' : ' '),
+ (segment->p_flags & PF_X ? 'E' : ' '));
+ printf ("%#lx", segment->p_align);
}
-
- if (ppnt->p_type == PT_DYNAMIC)
+
+ 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 section\n"));
+ error (_("more than one dynamic segment\n"));
- dynamic_addr = ppnt->p_offset;
- dynamic_size = ppnt->p_filesz;
- }
-
- if (ppnt->p_type == PT_INTERP)
- {
- if (do_load)
- printf (_("\nRequesting program interpreter [%s]"),
- & header [ppnt->p_offset]);
- pint = strdup (& header [ppnt->p_offset]);
+ 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_load)
+ if (do_segments)
putc ('\n', stdout);
-
- ppnt ++;
}
- if (do_load)
+ if (loadaddr == -1)
+ {
+ /* Very strange. */
+ loadaddr = 0;
+ }
+
+ if (do_segments && section_headers != NULL)
{
printf (_("\n Section to Segment mapping:\n"));
printf (_(" Segment Sections...\n"));
- if (elf_segments)
- ppnt = elf_segments;
- else
- ppnt = (Elf_Phdr *) & header [epnt->e_phoff];
-
- for (i = 0; i < epnt->e_phnum; i++, ppnt++)
+ assert (string_table != NULL);
+
+ for (i = 0; i < elf_header.e_phnum; i++)
{
- int j;
- Elf_Shdr * spnt;
+ int j;
+ Elf_Shdr * section;
+
+ segment = program_headers + i;
+ section = section_headers;
printf (" %2.2d ", i);
- spnt = (Elf_Shdr *) & header [epnt->e_shoff];
-
- if (must_swap)
- {
- lastmapped = SWAP4 (spnt[epnt->e_shstrndx].sh_offset);
-
- for (j = 0; j < epnt->e_shnum; j++)
- {
- bfd_vma addr;
- bfd_size_type size;
- unsigned int name;
-
- addr = SWAP4 (spnt[j].sh_addr);
- size = SWAP4 (spnt[j].sh_size);
- name = SWAP4 (spnt[j].sh_name);
-
- if (size > 0
- && (addr >= ppnt->p_vaddr)
- && (addr + size) <= (ppnt->p_vaddr + ppnt->p_memsz))
- printf ("%s ", header + lastmapped + name);
- }
- }
- else
+ for (j = 0; j < elf_header.e_shnum; j++, section ++)
{
- lastmapped = spnt[epnt->e_shstrndx].sh_offset;
-
- for (j = 0; j < epnt->e_shnum; j++, spnt++)
- {
- if (spnt->sh_size > 0
- && (spnt->sh_addr >= ppnt->p_vaddr)
- && (spnt->sh_addr + spnt->sh_size)
- <= (ppnt->p_vaddr + ppnt->p_memsz))
- printf ("%s ", SECTION_NAME (spnt));
- }
+ 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);
}
}
- if (elf_segments)
- free (elf_segments);
+ free (program_headers);
}
static void
-process_section_headers ()
+process_section_headers (file)
+ FILE * file;
{
- Elf_Shdr * spnt;
- int i;
+ Elf_Shdr * section;
+ int i;
+ if (elf_header.e_shnum == 0)
+ {
+ if (do_sections)
+ printf (_("\nThere are no sections in this file.\n"));
+
+ section_headers = NULL;
+ return;
+ }
+
+ if (do_sections && !do_header)
+ printf (_("There are %d section headers, starting at offset %x:\n"),
+ elf_header.e_shnum, elf_header.e_shoff);
+
+ GET_DATA_ALLOC (elf_header.e_shoff,
+ elf_header.e_shentsize * elf_header.e_shnum,
+ section_headers, Elf_Shdr *, "section headers");
+
if (must_swap)
{
- Elf_Shdr * new_header = malloc (sizeof (* new_header) * epnt->e_shnum);
-
- if (new_header == NULL)
+ for (i = 0; i < elf_header.e_shnum; i++)
{
- error (_("out of memory\n"));
- return;
+ BYTE_SWAP (section_headers [i], sh_name);
+ BYTE_SWAP (section_headers [i], sh_type);
+ BYTE_SWAP (section_headers [i], sh_flags);
+ BYTE_SWAP (section_headers [i], sh_addr);
+ BYTE_SWAP (section_headers [i], sh_offset);
+ BYTE_SWAP (section_headers [i], sh_size);
+ BYTE_SWAP (section_headers [i], sh_link);
+ BYTE_SWAP (section_headers [i], sh_info);
+ BYTE_SWAP (section_headers [i], sh_addralign);
+ BYTE_SWAP (section_headers [i], sh_entsize);
}
+ }
+
+ /* 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;
- memcpy (new_header, & header [epnt->e_shoff],
- sizeof (* new_header) * epnt->e_shnum);
-
- elf_sections = spnt = new_header;
-
- for (i = 0; i < epnt->e_shnum; i++)
+ 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. */
+ dynamic_symbols = NULL;
+ dynamic_strings = NULL;
+ for (i = 0, section = section_headers;
+ i < elf_header.e_shnum;
+ i ++, section ++)
+ {
+ if (section->sh_type == SHT_DYNSYM)
+ {
+ if (dynamic_symbols != NULL)
+ {
+ error (_("File contains multiple dynamic symbol tables\n"));
+ continue;
+ }
+
+ GET_DATA_ALLOC (section->sh_offset, section->sh_size,
+ dynamic_symbols, Elf_Sym *, "dynamic symbols");
+
+ if (must_swap)
+ {
+ Elf_Sym * psym;
+
+ for (i = 0, psym = dynamic_symbols;
+ i < section->sh_size / section->sh_entsize;
+ i ++, psym ++)
+ {
+ BYTE_SWAP (* psym, st_name);
+ BYTE_SWAP (* psym, st_value);
+ BYTE_SWAP (* psym, st_size);
+ BYTE_SWAP (* psym, st_shndx);
+ }
+ }
+ }
+ else if (section->sh_type == SHT_STRTAB
+ && strcmp (SECTION_NAME (section), ".dynstr") == 0)
{
- BYTE_SWAP (spnt + i, sh_name);
- BYTE_SWAP (spnt + i, sh_type);
- BYTE_SWAP (spnt + i, sh_flags);
- BYTE_SWAP (spnt + i, sh_addr);
- BYTE_SWAP (spnt + i, sh_offset);
- BYTE_SWAP (spnt + i, sh_size);
- BYTE_SWAP (spnt + i, sh_link);
- BYTE_SWAP (spnt + i, sh_info);
- BYTE_SWAP (spnt + i, sh_addralign);
- BYTE_SWAP (spnt + i, sh_entsize);
+ if (dynamic_strings != NULL)
+ {
+ error (_("File contains multiple dynamic string tables\n"));
+ continue;
+ }
- new_header ++;
+ GET_DATA_ALLOC (section->sh_offset, section->sh_size,
+ dynamic_strings, char *, "dynamic strings");
}
}
- else
- {
- elf_sections = spnt = (Elf_Shdr *) & header [epnt->e_shoff];
- }
-
- spnt += epnt->e_shstrndx;
- lastmapped = spnt->sh_offset;
- spnt = elf_sections;
-
- if (! do_section || (epnt->e_shnum == 0))
+
+ if (! do_sections)
return;
- if (! do_header)
- printf (_("There are %d section headers, starting at offset %x:\n"),
- epnt->e_shnum, epnt->e_shoff);
-
- printf (_("\nSection Header%s....\n"), epnt->e_shnum > 1 ? "s" : "");
- printf (_(" [Nr] Name Type Addr Off Size ES Flg Lk In Al\n"));
+ printf (_("\nSection Header%s:\n"), elf_header.e_shnum > 1 ? "s" : "");
+ printf
+ (_(" [Nr] Name Type Addr Off Size ES Flg Lk In Al\n"));
- for (i = 0; i < epnt->e_shnum; i++)
+ for (i = 0, section = section_headers;
+ i < elf_header.e_shnum;
+ i ++, section ++)
{
- printf (" [%2d] %-17s", i, SECTION_NAME (spnt));
+ printf (" [%2d] %-17.17s", i, SECTION_NAME (section));
- printf (" %-15s ",get_section_type_name (spnt->sh_type));
+ printf (" %-15.15s ",get_section_type_name (section->sh_type));
printf ( "%8.8lx %6.6lx %6.6lx %2.2lx",
- spnt->sh_addr,
- spnt->sh_offset,
- spnt->sh_size,
- spnt->sh_entsize);
+ section->sh_addr,
+ section->sh_offset,
+ section->sh_size,
+ section->sh_entsize);
printf (" %c%c%c %2ld %2lx %ld \n",
- (spnt->sh_flags & 1 ? 'W' : ' '),
- (spnt->sh_flags & 2 ? 'A' : ' '),
- (spnt->sh_flags & 4 ? 'X' : ' '),
- spnt->sh_link,
- spnt->sh_info,
- spnt->sh_addralign);
- spnt ++;
+ (section->sh_flags & SHF_WRITE ? 'W' : ' '),
+ (section->sh_flags & SHF_ALLOC ? 'A' : ' '),
+ (section->sh_flags & SHF_EXECINSTR ? 'X' : ' '),
+ section->sh_link,
+ section->sh_info,
+ section->sh_addralign);
}
}
-/* Parse the dynamic segment */
+/* Process the reloc section. */
static void
-process_dynamic_segment ()
+process_relocs (file)
+ FILE * file;
{
- Elf_Dyn * elf_dynamic;
- unsigned int i;
-
- dynamic_size = dynamic_size / sizeof (Elf_Dyn);
+ unsigned long rel_size;
+ unsigned long rel_offset;
- if (must_swap)
+
+ if (!do_reloc)
+ return;
+
+ if (do_using_dynamic)
{
- Elf_Dyn * new_header = malloc (sizeof (* new_header) * dynamic_size);
+ rel_size = 0;
+ rel_offset = 0;
- if (new_header == NULL)
+ if (dynamic_info [DT_REL])
{
- error (_("out of memory\n"));
- return;
+ rel_offset = dynamic_info [DT_REL];
+ rel_size = dynamic_info [DT_RELSZ];
}
-
- memcpy (new_header, & header [dynamic_addr],
- sizeof (* new_header) * dynamic_size);
-
- elf_dynamic = dpnt = new_header;
-
- for (i = 0; i < dynamic_size; i++)
+ else if (dynamic_info [DT_RELA])
{
- BYTE_SWAP (dpnt + i, d_tag);
- BYTE_SWAP (dpnt + i, d_un.d_ptr);
+ rel_offset = dynamic_info [DT_RELA];
+ rel_size = dynamic_info [DT_RELASZ];
+ }
+ else if (dynamic_info [DT_JMPREL])
+ {
+ rel_offset = dynamic_info [DT_JMPREL];
+ rel_size = dynamic_info [DT_PLTRELSZ];
+ }
+
+ if (rel_size)
+ {
+ printf (_("\nRelocation section at offset 0x%x contains %d bytes:\n"),
+ rel_offset, rel_size);
- new_header ++;
+ dump_relocations (file, rel_offset - loadaddr, rel_size,
+ dynamic_symbols, dynamic_strings);
}
+ else
+ printf (_("\nThere are no dynamic relocations in this file.\n"));
}
else
{
- dpnt = (Elf_Dyn *) & header [dynamic_addr];
- elf_dynamic = NULL;
+ Elf_Shdr * section;
+ unsigned long i;
+ int found = 0;
+
+ assert (string_table != NULL);
+
+ 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)
+ {
+ Elf_Shdr * strsec;
+ Elf_Shdr * symsec;
+ Elf_Sym * symtab;
+ char * strtab;
+
+ printf (_("\nRelocation section '%s' at offset 0x%x contains %d entries:\n"),
+ SECTION_NAME (section), rel_offset,
+ rel_size / section->sh_entsize);
+
+ symsec = section_headers + section->sh_link;
+
+ GET_DATA_ALLOC (symsec->sh_offset, symsec->sh_size, symtab,
+ Elf_Sym *, "symbols");
+
+ if (must_swap)
+ {
+ unsigned int si;
+
+ for (si = 0;
+ si < symsec->sh_size / symsec->sh_entsize;
+ si ++)
+ {
+ BYTE_SWAP (symtab [si], st_name);
+ BYTE_SWAP (symtab [si], st_value);
+ BYTE_SWAP (symtab [si], st_size);
+ BYTE_SWAP (symtab [si], st_shndx);
+ }
+ }
+
+ strsec = section_headers + symsec->sh_link;
+
+ GET_DATA_ALLOC (strsec->sh_offset, strsec->sh_size, strtab,
+ char *, "string table");
+
+ dump_relocations (file, rel_offset, rel_size, symtab, strtab);
+
+ free (strtab);
+ free (symtab);
+
+ found = 1;
+ }
+ }
+
+ if (! found)
+ printf (_("\nThere are no relocations in this file.\n"));
}
+}
- /* Find symtab. */
- for (i = 0; i < dynamic_size; ++i, ++dpnt)
- if (dpnt->d_tag == DT_SYMTAB)
- {
- dynamic_info [DT_SYMTAB] = dpnt->d_un.d_val;
- symtab = (Elf_Sym *) (header - loadaddr
- + dynamic_info[DT_SYMTAB]);
- }
- else if (dpnt->d_tag == DT_STRTAB)
- {
- dynamic_info [DT_STRTAB] = dpnt->d_un.d_val;
- strtab = (char *) (header - loadaddr + dynamic_info[DT_STRTAB]);
- }
+
+/* Parse the dynamic segment */
+static void
+process_dynamic_segment (file)
+ FILE * file;
+{
+ Elf_Dyn * dynamic_segment;
+ Elf_Dyn * entry;
+ unsigned int i;
- if (do_dynamic && dynamic_addr)
+ if (dynamic_size == 0)
{
- printf (_("\n Dynamic section data: %x, %d entries\n"),
- dynamic_addr, dynamic_size );
- }
+ if (do_dynamic)
+ printf (_("\nThere is no dynamic segment in this file.\n"));
+
+ return;
+ }
+
+ GET_DATA_ALLOC (dynamic_addr, dynamic_size,
+ dynamic_segment, Elf_Dyn *, "dynamic segment");
+
+ dynamic_size = dynamic_size / sizeof (Elf_Dyn);
- for (i = 0; i < dynamic_size; i++)
+ if (must_swap)
{
- if (do_dynamic)
- printf (_(" Tag: %#10x: "), dpnt->d_tag);
-
- switch (dpnt->d_tag)
+ for (i = 0; i < dynamic_size; i++)
{
- case DT_AUXILIARY:
- case DT_FILTER:
- if (do_dynamic)
- {
- printf ("(%-11s)", filtertype [DT_FILTER - dpnt->d_tag]);
-
- if (dynamic_info [DT_STRTAB])
- {
- if (dpnt->d_tag == DT_AUXILIARY)
- printf (_("Auxiliary library"));
- else
- printf (_("Filter library"));
+ BYTE_SWAP (dynamic_segment [i], d_tag);
+ BYTE_SWAP (dynamic_segment [i], d_un.d_val);
+ }
+ }
- printf (": [%s]\n", (dpnt->d_un.d_val + strtab));
- }
- else
- printf (_("Value %x\n"), dpnt->d_un.d_val);
- }
- break;
+ /* 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 (Elf_Sym);
+
+ if (num_syms < 1)
+ {
+ error (_("Unable to determine the number of symbols to load\n"));
+ continue;
+ }
+
+ GET_DATA_ALLOC (offset, num_syms * sizeof (Elf_Sym),
+ dynamic_symbols, Elf_Sym *, "dynamic symbols");
+
+ if (must_swap)
+ {
+ Elf_Sym * psym;
+
+ for (i = 0, psym = dynamic_symbols;
+ i < num_syms;
+ i ++, psym ++)
+ {
+ BYTE_SWAP (* psym, st_name);
+ BYTE_SWAP (* psym, st_value);
+ BYTE_SWAP (* psym, st_size);
+ BYTE_SWAP (* psym, st_shndx);
+ }
+ }
+
+ break;
+ }
+ }
+
+ /* 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;
+ }
+ }
+
+ if (do_dynamic && dynamic_addr)
+ printf (_("\nDynamic segement 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%-6.6x (%-11.11s) "),
+ entry->d_tag,
+ 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", entry->d_un.d_val);
+ }
+ break;
case DT_NULL :
case DT_NEEDED :
case DT_DEBUG :
case DT_TEXTREL :
case DT_JMPREL :
- dynamic_info [dpnt->d_tag] = dpnt->d_un.d_val;
+ dynamic_info [entry->d_tag] = entry->d_un.d_val;
if (do_dynamic)
{
- printf ("(%-11s)", dyntype [dpnt->d_tag]);
+ char * name;
+
+ if (dynamic_strings == NULL)
+ name = NULL;
+ else
+ name = dynamic_strings + entry->d_un.d_val;
- if (dynamic_info [DT_STRTAB])
+ if (name)
{
- switch (dpnt->d_tag)
+ switch (entry->d_tag)
{
case DT_NEEDED:
- printf (_("Shared library: [%s]\n"),
- (dpnt->d_un.d_val + strtab));
+ printf (_("Shared library: [%s]"), name);
- if (strcmp (dpnt->d_un.d_val + strtab, pint))
+ if (strcmp (name, program_interpreter))
printf ("\n");
else
printf (_(" program interpreter\n"));
break;
case DT_SONAME:
- printf (_("Library soname: [%s]\n"),
- (dpnt->d_un.d_val + strtab));
+ printf (_("Library soname: [%s]\n"), name);
break;
case DT_RPATH:
- printf (_("Library rpath: [%s]\n"),
- (dpnt->d_un.d_val + strtab));
+ printf (_("Library rpath: [%s]\n"), name);
break;
default:
- printf (_("Value %x\n"), dpnt->d_un.d_val);
+ printf ("%#lx\n", entry->d_un.d_val);
}
}
else
- printf (_("Value %x\n"), dpnt->d_un.d_val);
+ printf ("%#lx\n", entry->d_un.d_val);
}
break;
default:
- if ((dpnt->d_tag >= DT_VERSYM) && (dpnt->d_tag <= DT_VERNEEDNUM))
+ if ((entry->d_tag >= DT_VERSYM) && (entry->d_tag <= DT_VERNEEDNUM))
{
- version_info [DT_VERSIONTAGIDX (dpnt->d_tag)] = dpnt->d_un.d_val;
+ version_info [DT_VERSIONTAGIDX (entry->d_tag)] =
+ entry->d_un.d_val;
if (do_dynamic)
- printf (_("(%-11s) Value %#x\n"),
- vertype [DT_VERSIONTAGIDX (dpnt->d_tag)],
- dpnt->d_un.d_ptr);
+ printf ("%#lx\n", entry->d_un.d_ptr);
}
- else
- warn (_("<Invalid> Value %#x\n"), dpnt->d_un.d_ptr);
break;
}
+ }
+
+ free (dynamic_segment);
+}
+
+static char *
+get_ver_flags (unsigned short 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, "| ");
- dpnt ++;
+ strcat (buff, "WEAK ");
}
- if (do_reloc)
+ if (flags & ~(VER_FLG_BASE | VER_FLG_WEAK))
+ strcat (buff, "| <unknown>");
+
+ return buff;
+}
+
+/* Display the contents of the version sections. */
+static void
+process_version_sections (file)
+ FILE * file;
+{
+ Elf_Shdr * section;
+ unsigned i;
+ int found = 0;
+
+ if (! do_version)
+ return;
+
+ for (i = 0, section = section_headers;
+ i < elf_header.e_shnum;
+ i++, section ++)
{
- if (do_using_dynamic)
- {
- if (dynamic_info [DT_REL])
- {
- rpnt = (Elf_Rel *) (header + dynamic_info [DT_REL] - loadaddr);
- rel_size = dynamic_info [DT_RELSZ];
- if (rel_size)
- {
- printf (_("\nRelocation section data: %x %x\n"),
- dynamic_info[DT_REL], rel_size);
- dump_relocations (rpnt, rel_size);
- }
- else
- printf (_("\nNo Relocations in this file\n"));
- }
-
- if (dynamic_info[DT_RELA])
- {
- rpnt = (Elf_Rel *) (header + dynamic_info[DT_RELA] - loadaddr);
- rel_size = dynamic_info[DT_RELASZ];
- if (rel_size)
- {
- printf (_("\nRelocation section data: %x %x\n"),
- dynamic_info[DT_RELA], rel_size);
- dump_relocations (rpnt, rel_size);
- }
- else
- printf (_("\nNo Relocations in this file\n"));
- }
-
- if (dynamic_info[DT_JMPREL])
- {
- rpnt = (Elf_Rel *) (header + dynamic_info[DT_JMPREL]
- - loadaddr);
- rel_size = dynamic_info[DT_PLTRELSZ];
- if (rel_size)
- {
- printf (_("\nJumptable Relocation section data: %x %x\n"),
- dynamic_info[DT_JMPREL], rel_size);
- dump_relocations (rpnt, rel_size);
- }
- else
- printf (_("\nNo Relocations in this file\n"));
- }
- }
- else
+ switch (section->sh_type)
{
- Elf_Shdr * spnt;
-
- spnt = elf_sections;
-
- for (i = 0; i < epnt->e_shnum; i++, spnt++)
- {
- Elf_Shdr * symsec;
+ case SHT_GNU_verdef:
+ {
+ Elf_Verdef * verdef_section;
+ unsigned int idx;
+ unsigned int cnt;
+ found = 1;
- if (spnt->sh_type != SHT_RELA && spnt->sh_type != SHT_REL)
- continue;
-
- rpnt = (Elf_Rel *) (header + spnt->sh_offset);
-
- rel_size = spnt->sh_size;
+ printf (_("\nVersion definition section '%s' contains %d entries:\n"),
+ SECTION_NAME (section), section->sh_info);
+
+ printf (_(" Addr: %#08x Offset: %#08x Link: %x (%s)\n"),
+ section->sh_addr, section->sh_offset, section->sh_link,
+ SECTION_NAME (section_headers + section->sh_link));
- if (rel_size)
- {
- printf (_("\nRelocation section data: %s (%#x entries)\n"),
- SECTION_NAME (spnt), rel_size / spnt->sh_entsize);
-
- symsec = & elf_sections [spnt->sh_link];
- symtab = (Elf_Sym *) (header + symsec->sh_offset);
- strtab = (char *) (header
- + elf_sections [symsec->sh_link].sh_offset);
+ GET_DATA_ALLOC (section->sh_offset, section->sh_size,
+ verdef_section, Elf_Verdef *,
+ "version definition section");
+
+ for (idx = cnt = 0; cnt < section->sh_info; ++ cnt)
+ {
+ Elf_Verdef * ent;
+ Elf_Verdaux * aux;
+ int j;
+ int isum;
+
+ ent = (Elf_Verdef *) (((char *) verdef_section) + idx);
+
+ if (must_swap)
+ {
+ BYTE_SWAP (* ent, vd_version);
+ BYTE_SWAP (* ent, vd_flags);
+ BYTE_SWAP (* ent, vd_ndx);
+ BYTE_SWAP (* ent, vd_cnt);
+ BYTE_SWAP (* ent, vd_hash);
+ BYTE_SWAP (* ent, vd_aux);
+ BYTE_SWAP (* ent, 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);
+
+ aux = (Elf_Verdaux *) ((char *) ent + ent->vd_aux);
+
+ if (must_swap)
+ {
+ BYTE_SWAP (* aux, vda_name);
+ BYTE_SWAP (* aux, vda_next);
+ }
+
+ if (dynamic_strings)
+ printf (_("Name: %s\n"), dynamic_strings + aux->vda_name);
+ else
+ printf (_("Name index: %d\n"), aux->vda_name);
+
+ j = 1;
+ isum = idx + ent->vd_aux;
+
+ while (j < ent->vd_cnt)
+ {
+ isum += aux->vda_next;
+
+ aux = (Elf_Verdaux *)((char *) aux + aux->vda_next);
+
+ if (must_swap)
+ {
+ BYTE_SWAP (* aux, vda_name);
+ BYTE_SWAP (* aux, 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: %d\n"),
+ isum, j, aux->vda_name);
+
+ ++j;
+ }
+
+ idx += ent->vd_next;
+ }
+
+ free (verdef_section);
+ }
+ break;
+
+ case SHT_GNU_verneed:
+ {
+ Elf_Verneed * verneed_section;
+ unsigned int idx;
+ unsigned int cnt;
+
+ found = 1;
+
+ printf (_("\nVersion needs section '%s' contains %d entries:\n"),
+ SECTION_NAME (section), section->sh_info);
+
+ printf (_(" Addr: %#08x Offset: %#08x Link to section: %d (%s)\n"),
+ section->sh_addr, section->sh_offset, section->sh_link,
+ SECTION_NAME (section_headers + section->sh_link));
+
+ GET_DATA_ALLOC (section->sh_offset, section->sh_size,
+ verneed_section, Elf_Verneed *,
+ "version need section");
+
+ for (idx = cnt = 0; cnt < section->sh_info; ++cnt)
+ {
+ Elf_Verneed * ent;
+ Elf_Vernaux * aux;
+ int j;
+ int isum;
+
+ ent = verneed_section + idx / sizeof (Elf_Verneed);
+
+ if (must_swap)
+ {
+ BYTE_SWAP (* ent, vn_version);
+ BYTE_SWAP (* ent, vn_cnt);
+ BYTE_SWAP (* ent, vn_file);
+ BYTE_SWAP (* ent, vn_aux);
+ BYTE_SWAP (* ent, vn_next);
+ }
+
+ printf (_(" %#06x: Version: %d"), idx, ent->vn_version);
+
+ if (dynamic_strings)
+ printf (_(" File: %s"), dynamic_strings + ent->vn_file);
+ else
+ printf (_(" File: %x"), ent->vn_file);
- dump_relocations (rpnt, rel_size);
- }
- else
- printf (_("\nNo Relocations in this file\n"));
- }
+ printf (_(" Cnt: %d\n"), ent->vn_cnt);
+
+ aux = (Elf_Vernaux *)((char *) ent + ent->vn_aux);
+
+ for (j = 0, isum = idx + ent->vn_aux; j < ent->vn_cnt; ++j)
+ {
+ if (must_swap)
+ {
+ BYTE_SWAP (* aux, vna_hash);
+ BYTE_SWAP (* aux, vna_flags);
+ BYTE_SWAP (* aux, vna_other);
+ BYTE_SWAP (* aux, vna_name);
+ BYTE_SWAP (* aux, vna_next);
+ }
+
+ if (dynamic_strings)
+ printf (_(" %#06x: Name: %s"),
+ isum, dynamic_strings + aux->vna_name);
+ else
+ printf (_(" %#06x: Name index: %x"),
+ isum, aux->vna_name);
+
+ printf (_(" Flags: %s Version: %d\n"),
+ get_ver_flags (aux->vna_flags), aux->vna_other);
+
+ isum += aux->vna_next;
+ aux = (Elf_Vernaux *)((char *) aux + aux->vna_next);
+ }
+
+ idx += ent->vn_next;
+ }
+ }
+ break;
+
+ case SHT_GNU_versym:
+ {
+ Elf_Shdr * link_section = section_headers + section->sh_link;
+ int total = section->sh_size / section->sh_entsize;
+ int cnt;
+ unsigned short * p;
+ char * strtab;
+ Elf_Sym * symbols;
+ Elf_Shdr * string_sec;
+
+ found = 1;
+
+ GET_DATA_ALLOC (link_section->sh_offset, link_section->sh_size,
+ symbols, Elf_Sym *, "version symbols section");
+
+ if (must_swap)
+ {
+ int k;
+
+ for (k = link_section->sh_size / link_section->sh_entsize;
+ k --;)
+ {
+ BYTE_SWAP (symbols [k], st_name);
+ BYTE_SWAP (symbols [k], st_value);
+ BYTE_SWAP (symbols [k], st_size);
+ BYTE_SWAP (symbols [k], st_shndx);
+ }
+ }
+
+ 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: %#08x Offset: %#08x Link: %x (%s)\n"),
+ section->sh_addr, section->sh_offset, section->sh_link,
+ SECTION_NAME (link_section));
+
+ GET_DATA_ALLOC (version_info [DT_VERSIONTAGIDX (DT_VERSYM)] - loadaddr,
+ total * sizeof (unsigned short), p,
+ unsigned short *, "version symbol data");
+
+ if (must_swap)
+ {
+ int k;
+ for (k = total; k--;)
+ p [k] = SWAP2 (p [k]);
+ }
+
+ for (cnt = 0; cnt < total; cnt += 4)
+ {
+ int j, nn;
+
+ printf (" %03x:", cnt);
+
+ for (j = 0; (j < 4) && (cnt + j) < total; ++j)
+ switch (p[cnt + j])
+ {
+ case 0:
+ printf (" 0 (*local*) ");
+ break;
+
+ case 1:
+ printf (" 1 (*global*) ");
+ break;
+
+ default:
+ nn = printf ("%4x%c", p[cnt + j] & 0x7fff,
+ p[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_Verneed vn;
+ Elf_Vernaux vna;
+ unsigned long offset;
+
+ offset = version_info [DT_VERSIONTAGIDX (DT_VERNEED)]
+ - loadaddr;
+
+ do
+ {
+ unsigned long vna_off;
+
+ GET_DATA (offset, vn, "version need");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (vn, vn_aux);
+ BYTE_SWAP (vn, vn_next);
+ }
+
+ vna_off = offset + vn.vn_aux;
+
+ do
+ {
+ GET_DATA (vna_off, vna,
+ "version need aux (1)");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (vna, vna_next);
+ BYTE_SWAP (vna, vna_other);
+ }
+
+ vna_off += vna.vna_next;
+ }
+ while (vna.vna_other != p[cnt + j]
+ && vna.vna_next != 0);
+
+ if (vna.vna_other == p[cnt + j])
+ {
+ if (must_swap)
+ BYTE_SWAP (vna, vna_name);
+
+ nn += printf ("(%11.11s)",
+ strtab + vna.vna_name);
+ break;
+ }
+ else if (vn.vn_next == 0)
+ {
+ if (p[cnt + j] != 0x8001)
+ {
+ Elf_Verdef vd;
+ Elf_Verdaux vda;
+
+ offset = version_info
+ [DT_VERSIONTAGIDX (DT_VERDEF)]
+ - loadaddr;
+
+ do
+ {
+ GET_DATA (offset, vd,
+ "version definition");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (vd, vd_next);
+ BYTE_SWAP (vd, vd_ndx);
+ }
+
+ offset += vd.vd_next;
+ }
+ while (vd.vd_ndx != (p[cnt + j] & 0x7fff)
+ && vd.vd_next != 0);
+
+ if (vd.vd_ndx == (p[cnt + j] & 0x7fff))
+ {
+ if (must_swap)
+ BYTE_SWAP (vd, vd_aux);
+
+ GET_DATA (offset + vd.vd_aux, vda,
+ "version definition aux");
+
+ if (must_swap)
+ BYTE_SWAP (vda, vda_name);
+
+ nn += printf ("(%11.11s)",
+ strtab + vda.vda_name);
+ }
+ }
+
+ break;
+ }
+ else
+ offset += vn.vn_next;
+ }
+ while (vn.vn_next);
+ }
+ else if (symbols [cnt + j].st_shndx == SHN_UNDEF)
+ {
+ Elf_Vernaux a;
+ Elf_Verneed v;
+ unsigned long offset;
+
+ offset = version_info [DT_VERSIONTAGIDX (DT_VERNEED)]
+ - loadaddr;
+
+ do
+ {
+ unsigned long a_off;
+
+ GET_DATA (offset, v, "version need");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (v, vn_aux);
+ BYTE_SWAP (v, vn_next);
+ }
+
+ a_off = offset + v.vn_aux;
+
+ do
+ {
+ GET_DATA (a_off, a, "version need aux (2)");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (a, vna_next);
+ BYTE_SWAP (a, vna_other);
+ }
+
+ a_off += a.vna_next;
+ }
+ while (a.vna_other != p[cnt + j]
+ && a.vna_next != 0);
+
+ if (a.vna_other == p[cnt + j])
+ {
+ if (must_swap)
+ BYTE_SWAP (a, vna_name);
+
+ nn += printf ("(%11.11s)",
+ strtab + a.vna_name);
+
+ break;
+ }
+
+ offset += v.vn_next;
+ }
+ while (v.vn_next);
+ }
+ else
+ {
+ if (p[cnt + j] != 0x8001)
+ {
+ Elf_Verdaux a;
+ Elf_Verdef v;
+ unsigned long offset;
+
+ offset = version_info
+ [DT_VERSIONTAGIDX (DT_VERDEF)] - loadaddr;
+
+ do
+ {
+ GET_DATA (offset, v, "version def");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (v, vd_next);
+ BYTE_SWAP (v, vd_ndx);
+ }
+
+ offset += v.vd_next;
+ }
+ while (v.vd_ndx != (p[cnt + j] & 0x7fff)
+ && v.vd_next != 0);
+
+ if (v.vd_ndx == (p[cnt + j] & 0x7fff))
+ {
+ if (must_swap)
+ BYTE_SWAP (v, vd_aux);
+
+ GET_DATA (offset - v.vd_next + v.vd_aux, a,
+ "version def aux");
+
+ if (must_swap)
+ BYTE_SWAP (a, vda_name);
+
+ nn += printf ("(%11.11s)",
+ strtab + a.vda_name);
+ }
+ }
+ }
+
+ if (nn < 18)
+ printf ("%*c", 18 - nn, ' ');
+ }
+
+ putchar ('\n');
+ }
+
+ free (p);
+ free (strtab);
+ free (symbols);
+ }
+ break;
+
+ default:
}
}
- if (elf_dynamic)
- free (elf_dynamic);
+ if (! found)
+ printf (_("\nNo version information found in this file.\n"));
+}
+
+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
+ 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
+ sprintf (buff, _("<unknown>: %d"), type);
+ return buff;
+ }
+}
+
+static char *
+get_symbol_index_type (type)
+ unsigned short 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
+ {
+ static char buff [32];
+
+ sprintf (buff, "%3d", type);
+ return buff;
+ }
+ }
}
+
/* Dump the symbol table */
static void
-process_symbol_table ()
+process_symbol_table (file)
+ FILE * file;
{
- char * pnt;
- int i;
- Elf_Shdr * spnt;
+ Elf_Shdr * section;
if (! do_syms)
return;
- if (dynamic_info [DT_HASH] && do_using_dynamic)
+ if (dynamic_info [DT_HASH] && do_using_dynamic && dynamic_strings != NULL)
{
- int nbucket;
- int nchain;
- int * elf_buckets;
+ int nbuckets;
+ int nchains;
+ int * buckets;
int * chains;
int hn;
int si;
- int * hash_addr;
- hash_addr = (int *) (dynamic_info [DT_HASH] + header - loadaddr);
+ if (fseek (file, dynamic_info [DT_HASH] - loadaddr, SEEK_SET))
+ {
+ error (_("Unable to seek to start of dynamic information"));
+ return;
+ }
+
+ if (fread (& nbuckets, sizeof (nbuckets), 1, file) != 1)
+ {
+ error (_("Failed to read in number of buckets\n"));
+ return;
+ }
+
+ if (fread (& nchains, sizeof (nchains), 1, file) != 1)
+ {
+ error (_("Failed to read in number of chains\n"));
+ return;
+ }
+
+ if (must_swap)
+ {
+ nbuckets = SWAP4 (nbuckets);
+ nchains = SWAP4 (nchains);
+ }
+
+ buckets = (int *) malloc (nbuckets * sizeof (* buckets));
+ if (buckets == NULL)
+ {
+ error (_("Failed to allocate space for buckets\n"));
+ return;
+ }
+
+ if (fread (buckets, sizeof (* buckets), nbuckets, file) != nbuckets)
+ {
+ error (_("Unable to read in buckets\n"));
+ return;
+ }
+
+ chains = (int *) malloc (nchains * sizeof (* chains));
+ if (chains == NULL)
+ {
+ error (_("Failed to allocate space for chains\n"));
+ free (buckets);
+ return;
+ }
- nbucket = *hash_addr++;
- nchain = *hash_addr++;
- elf_buckets = hash_addr;
- hash_addr += nbucket;
- chains = hash_addr;
+ if (fread (chains, sizeof (* chains), nchains, file) != nchains)
+ {
+ error (_("Unable to read in chains!\n"));
+ free (buckets);
+ return;
+ }
+
+ if (must_swap)
+ {
+ for (si = nbuckets; si--;)
+ buckets [si] = SWAP4 (buckets [si]);
- printf (_("\n Symbol table for image\n"));
+ for (si = nchains; si--;)
+ chains [si] = SWAP4 (chains [si]);
+ }
+
+ printf (_("\nSymbol table for image:\n"));
printf (_(" Num Buc: Value Size Type Bind Ot Ndx Name\n"));
- for (hn = 0; hn < nbucket; hn++)
+ for (hn = 0; hn < nbuckets; hn++)
{
- if (! elf_buckets [hn])
+ if (! buckets [hn])
continue;
- for (si = elf_buckets[hn]; si; si = chains[si])
+ for (si = buckets [hn]; si; si = chains [si])
{
- pnt = strtab + symtab[si].st_name;
+ Elf_Sym * psym;
+
+ psym = dynamic_symbols + si;
- printf ("%3d %3d: %8lx %5ld %6s %6s %2d ", si, hn,
- symtab[si].st_value,
- symtab[si].st_size,
- sttinfo [ELF_ST_TYPE (symtab[si].st_info)],
- stbinfo [ELF_ST_BIND (symtab[si].st_info)],
- symtab[si].st_other);
+ printf (" %3d %3d: %8lx %5ld %6s %6s %2d ", si, hn,
+ psym->st_value,
+ 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));
- if (symtab[si].st_shndx == 0)
- printf ("UND");
- else if ((symtab[si].st_shndx & 0xffff) == 0xfff1)
- printf ("ABS");
- else if ((symtab[si].st_shndx & 0xffff) == 0xfff2)
- printf ("COM");
- else
- printf ("%3d", symtab[si].st_shndx);
- printf (" %s\n", pnt);
+ printf (" %s\n", dynamic_strings + psym->st_name);
}
}
+
+ free (buckets);
+ free (chains);
}
else if (!do_using_dynamic)
{
- int i;
- unsigned short * vers_addr;
-
- spnt = elf_sections;
- vers_addr = (short *) (version_info [DT_VERNEEDNUM - DT_VERSYM]
- + header - loadaddr);
-
- for (i = 0; i < epnt->e_shnum; i++, spnt++)
+ unsigned int i;
+
+ for (i = 0, section = section_headers;
+ i < elf_header.e_shnum;
+ i++, section++)
{
unsigned int si;
+ char * strtab;
+ Elf_Sym * symtab;
+ Elf_Sym * psym;
+
- if (spnt->sh_type != SHT_SYMTAB && spnt->sh_type != SHT_DYNSYM)
+ if ( section->sh_type != SHT_SYMTAB
+ && section->sh_type != SHT_DYNSYM)
continue;
- printf (_("\nSymbol data for: %s\n"), SECTION_NAME (spnt));
+ printf (_("\nSymbol table '%s' contains %d entries:\n"),
+ SECTION_NAME (section),
+ section->sh_size / section->sh_entsize);
printf (_(" Num: Value Size Type Bind Ot Ndx Name\n"));
-
- symtab = (Elf_Sym *) (header + spnt->sh_offset);
- strtab = (char *) (header + elf_sections [spnt->sh_link].sh_offset);
-
- for (si = 0; si < spnt->sh_size / spnt->sh_entsize; si++)
- {
- Elf_Sym ssym;
- Elf_Sym * psym;
- Elf_Sym * new_header;
-
- psym = symtab + si;
-
- if (must_swap)
- {
- ssym = * psym;
-
- new_header = & ssym;
- BYTE_SWAP (psym, st_name);
- BYTE_SWAP (psym, st_value);
- BYTE_SWAP (psym, st_size);
- BYTE_SWAP (psym, st_shndx);
+ GET_DATA_ALLOC (section->sh_offset, section->sh_size, symtab,
+ Elf_Sym *, "symbol section");
- psym = new_header;
+ if (must_swap)
+ {
+ for (si = 0; si < section->sh_size / section->sh_entsize; si ++)
+ {
+ BYTE_SWAP (symtab [si], st_name);
+ BYTE_SWAP (symtab [si], st_value);
+ BYTE_SWAP (symtab [si], st_size);
+ BYTE_SWAP (symtab [si], st_shndx);
}
-
- pnt = strtab + psym->st_name;
-
+ }
+
+ if (section->sh_link == elf_header.e_shstrndx)
+ strtab = string_table;
+ else
+ {
+ Elf_Shdr * 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,
psym->st_value,
psym->st_size,
- sttinfo [ELF_ST_TYPE (psym->st_info)],
- stbinfo [ELF_ST_BIND (psym->st_info)],
+ get_symbol_type (ELF_ST_TYPE (psym->st_info)),
+ get_symbol_binding (ELF_ST_BIND (psym->st_info)),
psym->st_other);
if (psym->st_shndx == 0)
printf ("COM");
else
printf ("%3d", psym->st_shndx);
- printf (" %s", pnt);
- if (spnt->sh_type == SHT_DYNSYM &&
- version_info [DT_VERSIONTAGIDX (DT_VERSYM)] != 0 &&
- ((vers_addr[si] & 0x8000) || vers_addr[si] > 1))
+ printf (" %s", strtab + psym->st_name);
+
+ if (section->sh_type == SHT_DYNSYM &&
+ version_info [DT_VERSIONTAGIDX (DT_VERSYM)] != 0)
{
- Elf_Vernaux * a;
+ 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), vers_data,
+ "version data");
+
+ if (must_swap)
+ vers_data = SWAP2 (vers_data);
+
+ is_nobits = psym->st_shndx < SHN_LORESERVE ?
+ (section_headers [psym->st_shndx].sh_type == SHT_NOBITS)
+ : 0;
- if (elf_sections [psym->st_shndx].sh_type == SHT_NOBITS
- || psym->st_shndx == SHN_UNDEF)
+ check_def = (psym->st_shndx != SHN_UNDEF);
+
+ if ((vers_data & 0x8000) || vers_data > 1)
{
- Elf_Verneed * v;
-
- /* We must test both. */
- v = (Elf_Verneed *)
- (version_info [DT_VERSIONTAGIDX (DT_VERNEED)]
- + header - loadaddr);
-
- for (;;)
+ if (is_nobits || ! check_def)
{
- a = (Elf_Vernaux *)((char *)v + v->vn_aux);
-
- while (a->vna_other != vers_addr[si]
- && a->vna_next != 0)
- a = (Elf_Vernaux *)((char *)a + a->vna_next);
-
- if (a->vna_other == vers_addr[si])
- break;
+ Elf_Verneed vn;
+ Elf_Vernaux vna;
+
+ /* We must test both. */
+ offset = version_info
+ [DT_VERSIONTAGIDX (DT_VERNEED)] - loadaddr;
+
+ GET_DATA (offset, vn, "version need");
- if (v->vn_next == 0)
+ if (must_swap)
{
- if (elf_sections [psym->st_shndx].sh_type
- != SHT_NOBITS)
- error (_("bad dynamic symbol"));
+ BYTE_SWAP (vn, vn_aux);
+ BYTE_SWAP (vn, vn_next);
+ }
+
+ do
+ {
+ unsigned long vna_off;
+
+ vna_off = offset + vn.vn_aux;
+
+ do
+ {
+ GET_DATA (vna_off, vna,
+ "version need aux (3)");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (vna, vna_other);
+ BYTE_SWAP (vna, vna_next);
+ }
+
+ vna_off += vna.vna_next;
+ }
+ while (vna.vna_other != vers_data
+ && vna.vna_next != 0);
- a = NULL;
- break;
+ if (vna.vna_other == vers_data)
+ break;
+
+ offset += vn.vn_next;
}
+ while (vn.vn_next != 0);
- v = (Elf_Verneed *)((char *)v + v->vn_next);
+ if (vna.vna_other == vers_data)
+ printf ("@%s (%d)",
+ strtab + vna.vna_name, vna.vna_other);
+ else if (! is_nobits)
+ error (_("bad dynamic symbol"));
+ else
+ check_def = 1;
}
- if (a != NULL)
- printf ("@%s (%d)", strtab + a->vna_name, a->vna_other);
- }
- else if ((elf_sections [psym->st_shndx].sh_type
- == SHT_NOBITS && a == NULL)
- || psym->st_shndx != SHN_UNDEF)
- {
- Elf_Verdef * v;
- Elf_Verdaux * b;
-
- v = (Elf_Verdef *)
- (version_info [DT_VERSIONTAGIDX (DT_VERDEF)]
- + header - loadaddr);
-
- if (vers_addr[si] == 0x8001)
- pnt = "";
- else
+ if (check_def)
{
- while (v->vd_ndx != (vers_addr [si] & 0x7fff))
- v = (Elf_Verdef *)((char *)v + v->vd_next);
-
- b = (Elf_Verdaux *) ((char *)v + v->vd_aux);
-
- if (psym->st_name != b->vda_name)
- pnt = strtab + b->vda_name;
- else
- pnt = NULL;
+ if (vers_data != 0x8001)
+ {
+ Elf_Verdef vd;
+ Elf_Verdaux vda;
+ unsigned long offset;
+
+ offset =
+ version_info [DT_VERSIONTAGIDX (DT_VERDEF)]
+ - loadaddr;
+
+ do
+ {
+ GET_DATA (offset, vd, "version def");
+
+ if (must_swap)
+ {
+ BYTE_SWAP (vd, vd_ndx);
+ BYTE_SWAP (vd, vd_aux);
+ BYTE_SWAP (vd, vd_next);
+ }
+
+ offset += vd.vd_next;
+ }
+ while (vd.vd_ndx != (vers_data & 0x7fff)
+ && vd.vd_next != 0);
+
+ offset -= vd.vd_next;
+ offset += vd.vd_aux;
+
+ GET_DATA (offset, vda, "version def aux");
+
+ if (must_swap)
+ BYTE_SWAP (vda, vda_name);
+
+ if (psym->st_name != vda.vda_name)
+ printf ((vers_data & 0x8000)
+ ? "@%s" : "@@%s",
+ strtab + vda.vda_name);
+ }
}
-
- if (pnt)
- printf ((vers_addr [si] & 0x8000)
- ? "@%s" : "@@%s", pnt);
}
}
- puts ("");
+ putchar ('\n');
}
- }
- }
-
- if (! do_version)
- return;
-
- spnt = elf_sections;
-
- for (i = 0; i < epnt->e_shnum; i++, spnt++)
- {
- if (spnt->sh_type == SHT_GNU_verdef)
- {
- Elf_Shdr * dspnt = &elf_sections[spnt->sh_link];
- unsigned int idx;
- unsigned int cnt;
-
- strtab = (char *) (header - loadaddr + dynamic_info[DT_STRTAB]);
-
- printf (_("\n Version definitions:%s (%#0x entries)\n"),
- SECTION_NAME(spnt), spnt->sh_info);
- printf (_("Addr: %#08x Offset: %#08x Link: %x (%s)\n"),
- spnt->sh_addr, spnt->sh_offset, spnt->sh_link,
- SECTION_NAME(dspnt));
-
- for (idx = cnt = 0; cnt < spnt->sh_info; ++cnt)
- {
- Elf_Verdef * ent = (Elf_Verdef *)
- ((char *) header + spnt->sh_offset + idx);
- Elf_Verdaux * aux = (Elf_Verdaux *)
- ((char *) ent + ent->vd_aux);
- int j, isum;
-
- printf (_("%#06x: Rev: %d Flags: "), idx, ent->vd_version);
-
- if (ent->vd_flags == 0)
- printf (_("none"));
- else
- {
- int f = 1;
- if (ent->vd_flags & 0x1)
- {
- printf (_("BASE"));
- f = 0;
- }
- if (ent->vd_flags & 0x2)
- {
- printf (_("%sWEAK"), f ? "" : "|");
- f = 0;
- }
- }
- printf (_(" Index: %d Cnt: %d Name: %s\n"),
- ent->vd_ndx, ent->vd_cnt, strtab + aux->vda_name);
- j = 1;
- isum = idx + ent->vd_aux;
- while (j < ent->vd_cnt)
- {
- isum += aux->vda_next;
- aux = (Elf_Verdaux *)((char *)aux + aux->vda_next);
- printf (_(" %#06x: Parent %d: %s\n"), isum, j,
- strtab + aux->vda_name);
- ++j;
- }
-
- idx += ent->vd_next;
- }
- }
-
- if (spnt->sh_type == SHT_GNU_verneed)
- {
- Elf_Shdr * dspnt = &elf_sections[spnt->sh_link];
- unsigned int idx;
- unsigned int cnt;
-
- strtab = (char *) (header - loadaddr + dynamic_info[DT_STRTAB]);
- printf (_("\n Needed versions:%s (%#0x entries)\n"),
- SECTION_NAME (spnt), spnt->sh_info);
- printf (_("Addr: %#08x Offset: %#08x Link: %x (%s)\n"),
- spnt->sh_addr, spnt->sh_offset, spnt->sh_link,
- SECTION_NAME (dspnt));
-
- for (idx = cnt = 0; cnt < spnt->sh_info; ++cnt)
- {
- Elf_Verneed * ent = (Elf_Verneed *)
- ((char *) header + spnt->sh_offset + idx);
- Elf_Vernaux * aux = (Elf_Vernaux *)
- ((char *) ent + ent->vn_aux);
- int j, isum;
-
- printf (_("%#06x: Version: %d File: %s Cnt: %d\n"),
- idx, ent->vn_version, strtab + ent->vn_file,ent->vn_cnt);
-
- for (j = 0, isum = idx + ent->vn_aux; j < ent->vn_cnt; ++j)
- {
- printf (_(" %#06x: Name: %s Flags: %s Version: %d\n"),
- isum, strtab+aux->vna_name,
- aux->vna_flags & 0x2 ? "WEAK" : "none",
- aux->vna_other);
- isum += aux->vna_next;
- aux = (Elf_Vernaux *)((char *) aux + aux->vna_next);
- }
- idx += ent->vn_next;
- }
- }
-
- if (spnt->sh_type == SHT_GNU_versym)
- {
- Elf_Shdr * dspnt = &elf_sections[spnt->sh_link];
- int total = spnt->sh_size / spnt->sh_entsize;
- int cnt;
- unsigned short * p = (short *)
- (version_info[DT_VERNEEDNUM - DT_VERSYM] + header - loadaddr);
-
- symtab = (Elf_Sym *) (header + dspnt->sh_offset);
- strtab = (char *) (header + elf_sections[dspnt->sh_link].sh_offset);
-
- printf (_("\n Version symbols:%s (%#0x entries)\n"),
- SECTION_NAME (spnt), total);
- printf (_("Addr: %#08x Offset: %#08x Link: %x (%s)\n"),
- spnt->sh_addr, spnt->sh_offset, spnt->sh_link,
- SECTION_NAME (dspnt));
-
- for (cnt = 0; cnt < total; cnt += 4)
- {
- int j, nn;
-
- printf ("%#08x:", cnt);
-
- for (j = 0; (j < 4) && (cnt + j) < total; ++j)
- switch (p[cnt + j])
- {
- case 0:
- printf (" 0 (*local*) ");
- break;
- case 1:
- printf (" 1 (*global*) ");
- break;
- default:
- nn = printf ("%4x%c", p[cnt + j] & 0x7fff,
- p[cnt + j] & 0x8000 ? 'h' : ' ');
- if (elf_sections[symtab[cnt + j].st_shndx].sh_type
- == SHT_NOBITS)
- {
- /* We must test both. */
- Elf_Verneed * v = (Elf_Verneed *)
- (version_info [DT_VERNEEDNUM - DT_VERNEED]
- + header - loadaddr);
- Elf_Vernaux * a = NULL;
-
- for (;;)
- {
- a = (Elf_Vernaux *)((char *) v + v->vn_aux);
-
- while (a->vna_other != p[cnt + j]
- && a->vna_next != 0)
- a = (Elf_Vernaux *)((char *) a + a->vna_next);
-
- if (a->vna_other == p[cnt + j])
- break;
-
- if (v->vn_next == 0)
- {
- a = NULL;
- break;
- }
-
- v = (Elf_Verneed *)((char *)v + v->vn_next);
- }
-
- if (a != NULL)
- nn += printf ("(%s)", strtab + a->vna_name);
- else
- {
- Elf_Verdef * v = (Elf_Verdef *)
- (version_info [DT_VERNEEDNUM - DT_VERDEF]
- + header - loadaddr);
- Elf_Verdaux * a;
-
- if (p[cnt + j] == 0x8001)
- pnt = "";
- else
- {
- while (v->vd_ndx != (p[cnt + j]&0x7fff))
- v = (Elf_Verdef *)((char *)v + v->vd_next);
-
- a = (Elf_Verdaux *) ((char *) v + v->vd_aux);
- pnt = strtab + a->vda_name;
- }
-
- if (pnt)
- nn += printf ("(%s)", pnt);
- }
-
- if (nn <16)
- printf ("%*c", 16 - nn, ' ');
- }
- else if (symtab[cnt + j].st_shndx ==SHN_UNDEF)
- {
- Elf_Verneed * v = (Elf_Verneed *)
- (version_info [DT_VERNEEDNUM - DT_VERNEED]
- + header - loadaddr);
- Elf_Vernaux * a;
-
- for (;;)
- {
- a = (Elf_Vernaux *)((char *) v + v->vn_aux);
-
- while (a->vna_other != p[cnt + j]
- && a->vna_next != 0)
- a = (Elf_Vernaux *)((char *)a + a->vna_next);
-
- if (a->vna_other == p[cnt + j])
- break;
-
- v = (Elf_Verneed *)((char *) v + v->vn_next);
- }
-
- nn += printf ("(%s)", strtab + a->vna_name);
-
- if (nn <16)
- printf ("%*c", 16 - nn, ' ');
- }
- else
- {
- Elf_Verdef * v = (Elf_Verdef *)
- (version_info [DT_VERNEEDNUM - DT_VERDEF]
- + header - loadaddr);
- Elf_Verdaux * a;
-
- if (p[cnt + j] == 0x8001)
- pnt = "";
- else
- {
- while (v->vd_ndx != (p[cnt + j] & 0x7fff))
- v = (Elf_Verdef *)((char *) v + v->vd_next);
-
- a = (Elf_Verdaux *) ((char *) v + v->vd_aux);
- pnt = strtab + a->vda_name;
- }
-
- if (pnt)
- nn += printf ("(%s)", pnt);
-
- if (nn <16)
- printf ("%*c", 16 - nn, ' ');
- }
- }
-
- printf ("\n");
- }
+ free (symtab);
+ if (strtab != string_table)
+ free (strtab);
}
}
+ else
+ printf
+ (_("\nDynamic symbol information is not available for displaying symbols.\n"));
}
static void
-process_section_contents ()
+process_section_contents (file)
+ FILE * file;
{
- Elf_Shdr * spnt;
- int i;
+ Elf_Shdr * section;
+ unsigned int i;
if (! do_dump)
return;
- spnt = elf_sections;
-
- for (i = 0; i < epnt->e_shnum; i++, spnt++)
+ for (i = 0, section = section_headers;
+ i < elf_header.e_shnum;
+ i ++, section ++)
{
- int bytes;
- int addr;
- int lbytes;
- unsigned char * my_addr;
-
#ifdef SUPPORT_DISASSEMBLY
/* See if we need an assembly dump of this section */
if ((i < NUM_DUMP_SECTS) && (dump_sects[i] & DISASS_DUMP))
{
- printf (_("\nAssembly dump of section %s\n"), SECTION_NAME (spnt));
+ printf (_("\nAssembly dump of section %s\n"),
+ SECTION_NAME (section));
+
+ /* XXX -- to be done --- XXX */
+ }
+#endif
+ /* See if we need a hex dump of this section. */
+ if ((i < NUM_DUMP_SECTS) && (dump_sects[i] & HEX_DUMP))
+ {
+ int bytes;
+ int addr;
+ unsigned char * data;
+ char * start;
+
+ printf (_("\nHex dump of section '%s':\n"), SECTION_NAME (section));
- bytes = spnt->sh_size;
- addr = spnt->sh_addr;
- my_addr = (unsigned char *) (header + spnt->sh_offset);
+ bytes = section->sh_size;
+ addr = section->sh_addr;
+
+ GET_DATA_ALLOC (section->sh_offset, bytes, start, char *,
+ "section data");
+
+ data = start;
- while (bytes > 0)
+ while (bytes)
{
- printf ("0x%8.8x ", addr);
+ int j;
+ int k;
+ int lbytes;
+
+ lbytes = (bytes > 16 ? 16 : bytes);
+
+ printf (" 0x%8.8x ", addr);
- switch (epnt->e_machine)
+ switch (elf_header.e_ident [EI_DATA])
{
- case EM_386:
- case EM_486:
- lbytes = db_disasm ((unsigned int) my_addr, 0, 0) -
- ((unsigned int) my_addr);
- break;
- case EM_68K:
- lbytes = (m68k_disass ((unsigned int) my_addr, addr)
- - (unsigned int) my_addr);
- break;
- default:
- warn (_("Unable to disassemble code for this platform\n"));
- return;
- }
-
- addr += lbytes;
- my_addr += lbytes;
- bytes -= lbytes;
-
- printf ("\n");
- }
- }
-#endif
-
- /* OK, see if we need a hex dump of this section. */
- if ((i < NUM_DUMP_SECTS) && (dump_sects[i] & HEX_DUMP))
- {
- int j;
- int k;
-
- printf (_("\nHex dump of section %s\n"), SECTION_NAME (spnt));
-
- bytes = spnt->sh_size;
- addr = spnt->sh_addr;
- my_addr = (unsigned char *) (header + spnt->sh_offset);
-
- while (bytes)
- {
- lbytes = (bytes > 16 ? 16 : bytes);
-
- printf ("0x%8.8x ",addr);
-
- switch (epnt->e_ident [EI_DATA])
- {
- case ELFDATA2LSB:
- for (j = 15; j >= 0; j --)
- {
- if (j < lbytes)
- printf ("%2.2x", my_addr[j]);
- else
- printf (" ");
-
- if (!(j & 0x3))
- printf (" ");
- }
- break;
-
- case ELFDATA2MSB:
- for (j = 0; j < 16; j++)
- {
- if (j < lbytes)
- printf ("%2.2x", my_addr[j]);
- else
- printf (" ");
-
- if ((j & 3) == 3)
- printf (" ");
- }
- break;
- }
-
- for (j = 0; j < lbytes; j++)
- {
- k = my_addr [j];
- if (k >= ' ' && k < 0x80)
- printf ("%c", k);
- else
- printf (".");
- }
-
- printf ("\n");
-
- my_addr += lbytes;
- addr += lbytes;
- bytes -= lbytes;
- }
- }
+ 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);
+ }
}
}
process_file (file_name)
char * file_name;
{
- int fd;
+ FILE * file;
struct stat statbuf;
-
- must_swap = 0;
+ unsigned int i;
- fd = open (file_name, O_RDONLY);
- if (fd == -1)
+ 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 (fstat (fd, & statbuf) < 0)
+ if (fread (& elf_header, sizeof (elf_header), 1, file) != 1)
{
- error (_("Cannot stat input file %s.\n"), file_name);
- close (fd);
+ error (_("%s: Failed to read file header\n"), file_name);
+ fclose (file);
return;
}
- header = mmap (0, statbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+ /* Initialise per file variables. */
+ must_swap = 0;
- if ((header == (char *) -1) || (header == NULL))
- {
- error (_("Cannot mmap %s: %s\n"), file_name, strerror (errno));
- close (fd);
- return;
- }
+ for (i = NUM_ELEM (version_info); i--;)
+ version_info [i] = 0;
- close (fd);
-
- epnt = (Elf_Ehdr *) header;
+ 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_elf_header ())
+ if (! process_file_header ())
{
- munmap (header, statbuf.st_size);
+ fclose (file);
return;
}
-
- process_program_headers ();
-
- if (loadaddr == -1)
- {
- /* Very strange. */
- loadaddr = 0;
- }
- process_section_headers ();
+ process_section_headers (file);
- process_dynamic_segment ();
+ process_program_headers (file);
+
+ process_dynamic_segment (file);
+
+ process_relocs (file);
+
+ process_symbol_table (file);
- process_symbol_table ();
+ process_version_sections (file);
- process_section_contents ();
+ process_section_contents (file);
+
+ fclose (file);
- munmap (header, statbuf.st_size);
+ if (section_headers)
+ {
+ free (section_headers);
+ section_headers = NULL;
+ }
- if (must_swap)
+ if (string_table)
{
- if (epnt)
- {
- free (epnt);
- epnt = NULL;
- }
+ free (string_table);
+ string_table = NULL;
+ }
- if (elf_sections)
- {
- free (elf_sections);
- elf_sections = NULL;
- }
+ if (dynamic_strings)
+ {
+ free (dynamic_strings);
+ dynamic_strings = NULL;
+ }
+
+ if (dynamic_symbols)
+ {
+ free (dynamic_symbols);
+ dynamic_symbols = NULL;
}
}
projects / binutils-gdb.git / commitdiff