/* objdump.c -- dump information about an object file.
- Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Copyright 1990, 91, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
This file is part of GNU Binutils.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
-#include "sysdep.h"
#include "getopt.h"
+#include "progress.h"
#include "bucomm.h"
-#include <stdio.h>
#include <ctype.h>
#include "dis-asm.h"
#include "libiberty.h"
+#include "debug.h"
+#include "budbg.h"
+
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
/* Internal headers for the ELF .stab-dump code - sorry. */
#define BYTES_IN_WORD 32
#include "aout/aout64.h"
-#ifndef FPRINTF_ALREADY_DECLARED
-extern int fprintf PARAMS ((FILE *, CONST char *, ...));
+#ifdef NEED_DECLARATION_FPRINTF
+/* This is needed by INIT_DISASSEMBLE_INFO. */
+extern int fprintf PARAMS ((FILE *, const char *, ...));
#endif
-char *default_target = NULL; /* default at runtime */
-
-extern char *program_version;
-
-int show_version = 0; /* show the version number */
-int dump_section_contents; /* -s */
-int dump_section_headers; /* -h */
-boolean dump_file_header; /* -f */
-int dump_symtab; /* -t */
-int dump_dynamic_symtab; /* -T */
-int dump_reloc_info; /* -r */
-int dump_dynamic_reloc_info; /* -R */
-int dump_ar_hdrs; /* -a */
-int with_line_numbers; /* -l */
-int dump_stab_section_info; /* --stabs */
-boolean disassemble; /* -d */
-boolean disassemble_all; /* -D */
-boolean formats_info; /* -i */
-char *only; /* -j secname */
+static char *default_target = NULL; /* default at runtime */
+
+static int show_version = 0; /* show the version number */
+static int dump_section_contents; /* -s */
+static int dump_section_headers; /* -h */
+static boolean dump_file_header; /* -f */
+static int dump_symtab; /* -t */
+static int dump_dynamic_symtab; /* -T */
+static int dump_reloc_info; /* -r */
+static int dump_dynamic_reloc_info; /* -R */
+static int dump_ar_hdrs; /* -a */
+static int dump_private_headers; /* -p */
+static int prefix_addresses; /* --prefix-addresses */
+static int with_line_numbers; /* -l */
+static boolean with_source_code; /* -S */
+static int show_raw_insn; /* --show-raw-insn */
+static int dump_stab_section_info; /* --stabs */
+static boolean disassemble; /* -d */
+static boolean disassemble_all; /* -D */
+static int disassemble_zeroes; /* --disassemble-zeroes */
+static boolean formats_info; /* -i */
+static char *only; /* -j secname */
+static int wide_output; /* -w */
+static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
+static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
+static int dump_debugging; /* --debugging */
/* Extra info to pass to the disassembler address printing function. */
struct objdump_disasm_info {
};
/* Architecture to disassemble for, or default if NULL. */
-char *machine = (char *) NULL;
+static char *machine = (char *) NULL;
+
+/* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
+static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
/* The symbol table. */
-asymbol **syms;
+static asymbol **syms;
/* Number of symbols in `syms'. */
-long symcount = 0;
+static long symcount = 0;
+
+/* The sorted symbol table. */
+static asymbol **sorted_syms;
+
+/* Number of symbols in `sorted_syms'. */
+static long sorted_symcount = 0;
/* The dynamic symbol table. */
-asymbol **dynsyms;
+static asymbol **dynsyms;
/* Number of symbols in `dynsyms'. */
-long dynsymcount = 0;
+static long dynsymcount = 0;
/* Forward declarations. */
dump_dynamic_relocs PARAMS ((bfd * abfd));
static void
-dump_reloc_set PARAMS ((bfd *, arelent **, long));
+dump_reloc_set PARAMS ((bfd *, asection *, arelent **, long));
static void
dump_symbols PARAMS ((bfd *abfd, boolean dynamic));
static void
display_bfd PARAMS ((bfd *abfd));
+static void
+objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean));
+
+static asymbol *
+find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *));
+
+static void
+objdump_print_addr_with_sym PARAMS ((bfd *, asection *, asymbol *, bfd_vma,
+ struct disassemble_info *, boolean));
+
+static void
+objdump_print_addr PARAMS ((bfd_vma, struct disassemble_info *, boolean));
+
static void
objdump_print_address PARAMS ((bfd_vma, struct disassemble_info *));
+
+static void
+show_line PARAMS ((bfd *, asection *, bfd_vma));
+
+static void
+disassemble_bytes PARAMS ((struct disassemble_info *, disassembler_ftype,
+ boolean, bfd_byte *, long, long, arelent ***,
+ arelent **));
+
+static void
+disassemble_data PARAMS ((bfd *));
+
+static const char *
+endian_string PARAMS ((enum bfd_endian));
\f
-void
+static void
usage (stream, status)
FILE *stream;
int status;
{
fprintf (stream, "\
-Usage: %s [-ahifdDrRtTxsl] [-b bfdname] [-m machine] [-j section-name]\n\
- [--archive-headers] [--target=bfdname] [--disassemble]\n\
- [--disassemble-all] [--file-headers] [--section-headers] [--headers]\n\
- [--info] [--section=section-name] [--line-numbers]\n\
+Usage: %s [-ahifdDprRtTxsSlw] [-b bfdname] [-m machine] [-j section-name]\n\
+ [--archive-headers] [--target=bfdname] [--debugging] [--disassemble]\n\
+ [--disassemble-all] [--disassemble-zeroes] [--file-headers]\n\
+ [--section-headers] [--headers]\n\
+ [--info] [--section=section-name] [--line-numbers] [--source]\n",
+ program_name);
+ fprintf (stream, "\
[--architecture=machine] [--reloc] [--full-contents] [--stabs]\n\
[--syms] [--all-headers] [--dynamic-syms] [--dynamic-reloc]\n\
- [--version] [--help] objfile...\n\
-at least one option besides -l (--line-numbers) must be given\n",
- program_name);
+ [--wide] [--version] [--help] [--private-headers]\n\
+ [--start-address=addr] [--stop-address=addr]\n\
+ [--prefix-addresses] [--show-raw-insn]\n\
+ [-EB|-EL] [--endian={big|little}] objfile...\n\
+at least one option besides -l (--line-numbers) must be given\n");
+ list_supported_targets (program_name, stream);
+ if (status == 0)
+ fprintf (stream, "Report bugs to bug-gnu-utils@prep.ai.mit.edu\n");
exit (status);
}
+/* 150 isn't special; it's just an arbitrary non-ASCII char value. */
+
+#define OPTION_ENDIAN (150)
+#define OPTION_START_ADDRESS (OPTION_ENDIAN + 1)
+#define OPTION_STOP_ADDRESS (OPTION_START_ADDRESS + 1)
+
static struct option long_options[]=
{
{"all-headers", no_argument, NULL, 'x'},
+ {"private-headers", no_argument, NULL, 'p'},
{"architecture", required_argument, NULL, 'm'},
{"archive-headers", no_argument, NULL, 'a'},
+ {"debugging", no_argument, &dump_debugging, 1},
{"disassemble", no_argument, NULL, 'd'},
{"disassemble-all", no_argument, NULL, 'D'},
+ {"disassemble-zeroes", no_argument, &disassemble_zeroes, 1},
{"dynamic-reloc", no_argument, NULL, 'R'},
{"dynamic-syms", no_argument, NULL, 'T'},
+ {"endian", required_argument, NULL, OPTION_ENDIAN},
{"file-headers", no_argument, NULL, 'f'},
{"full-contents", no_argument, NULL, 's'},
{"headers", no_argument, NULL, 'h'},
{"help", no_argument, NULL, 'H'},
{"info", no_argument, NULL, 'i'},
{"line-numbers", no_argument, NULL, 'l'},
+ {"prefix-addresses", no_argument, &prefix_addresses, 1},
{"reloc", no_argument, NULL, 'r'},
{"section", required_argument, NULL, 'j'},
{"section-headers", no_argument, NULL, 'h'},
+ {"show-raw-insn", no_argument, &show_raw_insn, 1},
+ {"source", no_argument, NULL, 'S'},
{"stabs", no_argument, &dump_stab_section_info, 1},
+ {"start-address", required_argument, NULL, OPTION_START_ADDRESS},
+ {"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
{"syms", no_argument, NULL, 't'},
{"target", required_argument, NULL, 'b'},
- {"version", no_argument, &show_version, 1},
+ {"version", no_argument, &show_version, 1},
+ {"wide", no_argument, &wide_output, 'w'},
{0, no_argument, 0, 0}
};
\f
{
char *comma = "";
-#define PF(x,y) \
- if (section->flags & x) { printf("%s%s",comma,y); comma = ", "; }
-
-
- printf ("SECTION %d [%s]\t: size %08x",
- section->index,
- section->name,
- (unsigned) bfd_get_section_size_before_reloc (section));
- printf (" vma ");
- printf_vma (section->vma);
- printf (" align 2**%u\n ",
- section->alignment_power);
+ printf ("%3d %-13s %08lx ", section->index,
+ bfd_get_section_name (abfd, section),
+ (unsigned long) bfd_section_size (abfd, section));
+ printf_vma (bfd_get_section_vma (abfd, section));
+ printf (" ");
+ printf_vma (section->lma);
+ printf (" %08lx 2**%u", section->filepos,
+ bfd_get_section_alignment (abfd, section));
+ if (! wide_output)
+ printf ("\n ");
+ printf (" ");
+
+#define PF(x, y) \
+ if (section->flags & x) { printf ("%s%s", comma, y); comma = ", "; }
+
+ PF (SEC_HAS_CONTENTS, "CONTENTS");
PF (SEC_ALLOC, "ALLOC");
PF (SEC_CONSTRUCTOR, "CONSTRUCTOR");
PF (SEC_CONSTRUCTOR_TEXT, "CONSTRUCTOR TEXT");
PF (SEC_ROM, "ROM");
PF (SEC_DEBUGGING, "DEBUGGING");
PF (SEC_NEVER_LOAD, "NEVER_LOAD");
+ PF (SEC_EXCLUDE, "EXCLUDE");
+ PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
+
+ if ((section->flags & SEC_LINK_ONCE) != 0)
+ {
+ const char *ls;
+
+ switch (section->flags & SEC_LINK_DUPLICATES)
+ {
+ default:
+ abort ();
+ case SEC_LINK_DUPLICATES_DISCARD:
+ ls = "LINK_ONCE_DISCARD";
+ break;
+ case SEC_LINK_DUPLICATES_ONE_ONLY:
+ ls = "LINK_ONCE_ONE_ONLY";
+ break;
+ case SEC_LINK_DUPLICATES_SAME_SIZE:
+ ls = "LINK_ONCE_SAME_SIZE";
+ break;
+ case SEC_LINK_DUPLICATES_SAME_CONTENTS:
+ ls = "LINK_ONCE_SAME_CONTENTS";
+ break;
+ }
+ printf ("%s%s", comma, ls);
+ comma = ", ";
+ }
+
printf ("\n");
#undef PF
}
dump_headers (abfd)
bfd *abfd;
{
+ printf ("Sections:\n");
+#ifndef BFD64
+ printf ("Idx Name Size VMA LMA File off Algn\n");
+#else
+ printf ("Idx Name Size VMA LMA File off Algn\n");
+#endif
bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL);
}
\f
if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
{
printf ("No symbols in \"%s\".\n", bfd_get_filename (abfd));
+ symcount = 0;
return NULL;
}
{
fprintf (stderr, "%s: %s: not a dynamic object\n",
program_name, bfd_get_filename (abfd));
+ dynsymcount = 0;
return NULL;
}
COUNT is the number of elements in SYMBOLS.
Return the number of useful symbols. */
-long
+static long
remove_useless_symbols (symbols, count)
asymbol **symbols;
long count;
return out_ptr - symbols;
}
-/* Sort symbols into value order. */
+/* Sort symbols into value order. */
static int
compare_symbols (ap, bp)
{
const asymbol *a = *(const asymbol **)ap;
const asymbol *b = *(const asymbol **)bp;
+ const char *an, *bn;
+ size_t anl, bnl;
+ boolean af, bf;
+ flagword aflags, bflags;
- if (a->value > b->value)
+ if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
return 1;
- else if (a->value < b->value)
+ else if (bfd_asymbol_value (a) < bfd_asymbol_value (b))
return -1;
if (a->section > b->section)
return 1;
else if (a->section < b->section)
return -1;
- return 0;
+
+ an = bfd_asymbol_name (a);
+ bn = bfd_asymbol_name (b);
+ anl = strlen (an);
+ bnl = strlen (bn);
+
+ /* The symbols gnu_compiled and gcc2_compiled convey no real
+ information, so put them after other symbols with the same value. */
+
+ af = (strstr (an, "gnu_compiled") != NULL
+ || strstr (an, "gcc2_compiled") != NULL);
+ bf = (strstr (bn, "gnu_compiled") != NULL
+ || strstr (bn, "gcc2_compiled") != NULL);
+
+ if (af && ! bf)
+ return 1;
+ if (! af && bf)
+ return -1;
+
+ /* We use a heuristic for the file name, to try to sort it after
+ more useful symbols. It may not work on non Unix systems, but it
+ doesn't really matter; the only difference is precisely which
+ symbol names get printed. */
+
+#define file_symbol(s, sn, snl) \
+ (((s)->flags & BSF_FILE) != 0 \
+ || ((sn)[(snl) - 2] == '.' \
+ && ((sn)[(snl) - 1] == 'o' \
+ || (sn)[(snl) - 1] == 'a')))
+
+ af = file_symbol (a, an, anl);
+ bf = file_symbol (b, bn, bnl);
+
+ if (af && ! bf)
+ return 1;
+ if (! af && bf)
+ return -1;
+
+ /* Try to sort global symbols before local symbols before function
+ symbols before debugging symbols. */
+
+ aflags = a->flags;
+ bflags = b->flags;
+
+ if ((aflags & BSF_DEBUGGING) != (bflags & BSF_DEBUGGING))
+ {
+ if ((aflags & BSF_DEBUGGING) != 0)
+ return 1;
+ else
+ return -1;
+ }
+ if ((aflags & BSF_FUNCTION) != (bflags & BSF_FUNCTION))
+ {
+ if ((aflags & BSF_FUNCTION) != 0)
+ return -1;
+ else
+ return 1;
+ }
+ if ((aflags & BSF_LOCAL) != (bflags & BSF_LOCAL))
+ {
+ if ((aflags & BSF_LOCAL) != 0)
+ return 1;
+ else
+ return -1;
+ }
+ if ((aflags & BSF_GLOBAL) != (bflags & BSF_GLOBAL))
+ {
+ if ((aflags & BSF_GLOBAL) != 0)
+ return -1;
+ else
+ return 1;
+ }
+
+ /* Symbols that start with '.' might be section names, so sort them
+ after symbols that don't start with '.'. */
+ if (an[0] == '.' && bn[0] != '.')
+ return 1;
+ if (an[0] != '.' && bn[0] == '.')
+ return -1;
+
+ /* Finally, if we can't distinguish them in any other way, try to
+ get consistent results by sorting the symbols by name. */
+ return strcmp (an, bn);
}
/* Sort relocs into address order. */
else if (a->address < b->address)
return -1;
- return compare_symbols ((const PTR) a->sym_ptr_ptr,
- (const PTR) b->sym_ptr_ptr);
+ /* So that associated relocations tied to the same address show up
+ in the correct order, we don't do any further sorting. */
+ if (a > b)
+ return 1;
+ else if (a < b)
+ return -1;
+ else
+ return 0;
}
-/* Print VMA symbolically to INFO if possible. */
+/* Print VMA to STREAM. If SKIP_ZEROES is true, omit leading zeroes. */
static void
-objdump_print_address (vma, info)
+objdump_print_value (vma, info, skip_zeroes)
bfd_vma vma;
struct disassemble_info *info;
+ boolean skip_zeroes;
+{
+ char buf[30];
+ char *p;
+
+ sprintf_vma (buf, vma);
+ if (! skip_zeroes)
+ p = buf;
+ else
+ {
+ for (p = buf; *p == '0'; ++p)
+ ;
+ if (*p == '\0')
+ --p;
+ }
+ (*info->fprintf_func) (info->stream, "%s", p);
+}
+
+/* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC
+ is true, then always require the symbol to be in the section. This
+ returns NULL if there is no suitable symbol. If PLACE is not NULL,
+ then *PLACE is set to the index of the symbol in sorted_syms. */
+
+static asymbol *
+find_symbol_for_address (abfd, sec, vma, require_sec, place)
+ bfd *abfd;
+ asection *sec;
+ bfd_vma vma;
+ boolean require_sec;
+ long *place;
{
- /* @@ For relocateable files, should filter out symbols belonging to
- the wrong section. Unfortunately, not enough information is supplied
- to this routine to determine the correct section in all cases. */
/* @@ Would it speed things up to cache the last two symbols returned,
and maybe their address ranges? For many processors, only one memory
operand can be present at a time, so the 2-entry cache wouldn't be
constantly churned by code doing heavy memory accesses. */
- /* Indices in `syms'. */
+ /* Indices in `sorted_syms'. */
long min = 0;
- long max = symcount;
+ long max = sorted_symcount;
long thisplace;
- bfd_signed_vma vardiff;
-
- fprintf_vma (info->stream, vma);
-
- if (symcount < 1)
- return;
+ if (sorted_symcount < 1)
+ return NULL;
/* Perform a binary search looking for the closest symbol to the
required value. We are searching the range (min, max]. */
asymbol *sym;
thisplace = (max + min) / 2;
- sym = syms[thisplace];
+ sym = sorted_syms[thisplace];
- vardiff = sym->value - vma;
-
- if (vardiff > 0)
+ if (bfd_asymbol_value (sym) > vma)
max = thisplace;
- else if (vardiff < 0)
+ else if (bfd_asymbol_value (sym) < vma)
min = thisplace;
else
{
}
/* The symbol we want is now in min, the low end of the range we
- were searching. */
+ were searching. If there are several symbols with the same
+ value, we want the first one. */
thisplace = min;
+ while (thisplace > 0
+ && (bfd_asymbol_value (sorted_syms[thisplace])
+ == bfd_asymbol_value (sorted_syms[thisplace - 1])))
+ --thisplace;
+
+ /* If the file is relocateable, and the symbol could be from this
+ section, prefer a symbol from this section over symbols from
+ others, even if the other symbol's value might be closer.
+
+ Note that this may be wrong for some symbol references if the
+ sections have overlapping memory ranges, but in that case there's
+ no way to tell what's desired without looking at the relocation
+ table. */
+
+ if (sorted_syms[thisplace]->section != sec
+ && (require_sec
+ || ((abfd->flags & HAS_RELOC) != 0
+ && vma >= bfd_get_section_vma (abfd, sec)
+ && vma < (bfd_get_section_vma (abfd, sec)
+ + bfd_section_size (abfd, sec)))))
+ {
+ long i;
- {
- /* If this symbol isn't global, search for one with the same value
- that is. */
- bfd_vma val = syms[thisplace]->value;
- long i;
- if (syms[thisplace]->flags & (BSF_LOCAL|BSF_DEBUGGING))
- for (i = thisplace - 1; i >= 0; i--)
+ for (i = thisplace + 1; i < sorted_symcount; i++)
{
- if (syms[i]->value == val
- && (!(syms[i]->flags & (BSF_LOCAL|BSF_DEBUGGING))
- || ((syms[thisplace]->flags & BSF_DEBUGGING)
- && !(syms[i]->flags & BSF_DEBUGGING))))
+ if (bfd_asymbol_value (sorted_syms[i])
+ != bfd_asymbol_value (sorted_syms[thisplace]))
+ break;
+ }
+ --i;
+ for (; i >= 0; i--)
+ {
+ if (sorted_syms[i]->section == sec
+ && (i == 0
+ || sorted_syms[i - 1]->section != sec
+ || (bfd_asymbol_value (sorted_syms[i])
+ != bfd_asymbol_value (sorted_syms[i - 1]))))
{
thisplace = i;
break;
}
}
- if (syms[thisplace]->flags & (BSF_LOCAL|BSF_DEBUGGING))
- for (i = thisplace + 1; i < symcount; i++)
+
+ if (sorted_syms[thisplace]->section != sec)
{
- if (syms[i]->value == val
- && (!(syms[i]->flags & (BSF_LOCAL|BSF_DEBUGGING))
- || ((syms[thisplace]->flags & BSF_DEBUGGING)
- && !(syms[i]->flags & BSF_DEBUGGING))))
+ /* We didn't find a good symbol with a smaller value.
+ Look for one with a larger value. */
+ for (i = thisplace + 1; i < sorted_symcount; i++)
{
- thisplace = i;
- break;
+ if (sorted_syms[i]->section == sec)
+ {
+ thisplace = i;
+ break;
+ }
}
}
- }
- {
- /* If the file is relocateable, and the symbol could be from this
- section, prefer a symbol from this section over symbols from
- others, even if the other symbol's value might be closer.
-
- Note that this may be wrong for some symbol references if the
- sections have overlapping memory ranges, but in that case there's
- no way to tell what's desired without looking at the relocation
- table. */
- struct objdump_disasm_info *aux;
- long i;
-
- aux = (struct objdump_disasm_info *) info->application_data;
- if ((aux->require_sec
- || (aux->abfd->flags & HAS_RELOC) != 0)
- && vma >= bfd_get_section_vma (aux->abfd, aux->sec)
- && vma < (bfd_get_section_vma (aux->abfd, aux->sec)
- + bfd_get_section_size_before_reloc (aux->sec))
- && syms[thisplace]->section != aux->sec)
- {
- for (i = thisplace + 1; i < symcount; i++)
- {
- if (syms[i]->value != syms[thisplace]->value)
- break;
- }
- --i;
- for (; i >= 0; i--)
- {
- if (syms[i]->section == aux->sec)
- {
- thisplace = i;
- break;
- }
- }
- }
- }
- fprintf (info->stream, " <%s", syms[thisplace]->name);
- if (syms[thisplace]->value > vma)
+
+ if (sorted_syms[thisplace]->section != sec
+ && (require_sec
+ || ((abfd->flags & HAS_RELOC) != 0
+ && vma >= bfd_get_section_vma (abfd, sec)
+ && vma < (bfd_get_section_vma (abfd, sec)
+ + bfd_section_size (abfd, sec)))))
+ {
+ /* There is no suitable symbol. */
+ return NULL;
+ }
+ }
+
+ if (place != NULL)
+ *place = thisplace;
+
+ return sorted_syms[thisplace];
+}
+
+/* Print an address to INFO symbolically. */
+
+static void
+objdump_print_addr_with_sym (abfd, sec, sym, vma, info, skip_zeroes)
+ bfd *abfd;
+ asection *sec;
+ asymbol *sym;
+ bfd_vma vma;
+ struct disassemble_info *info;
+ boolean skip_zeroes;
+{
+ objdump_print_value (vma, info, skip_zeroes);
+
+ if (sym == NULL)
{
- char buf[30], *p = buf;
- sprintf_vma (buf, syms[thisplace]->value - vma);
- while (*p == '0')
- p++;
- fprintf (info->stream, "-%s", p);
+ bfd_vma secaddr;
+
+ (*info->fprintf_func) (info->stream, " <%s",
+ bfd_get_section_name (abfd, sec));
+ secaddr = bfd_get_section_vma (abfd, sec);
+ if (vma < secaddr)
+ {
+ (*info->fprintf_func) (info->stream, "-");
+ objdump_print_value (secaddr - vma, info, true);
+ }
+ else if (vma > secaddr)
+ {
+ (*info->fprintf_func) (info->stream, "+");
+ objdump_print_value (vma - secaddr, info, true);
+ }
+ (*info->fprintf_func) (info->stream, ">");
}
- else if (vma > syms[thisplace]->value)
+ else
{
- char buf[30], *p = buf;
- sprintf_vma (buf, vma - syms[thisplace]->value);
- while (*p == '0')
- p++;
- fprintf (info->stream, "+%s", p);
+ (*info->fprintf_func) (info->stream, " <%s", sym->name);
+ if (bfd_asymbol_value (sym) > vma)
+ {
+ (*info->fprintf_func) (info->stream, "-");
+ objdump_print_value (bfd_asymbol_value (sym) - vma, info, true);
+ }
+ else if (vma > bfd_asymbol_value (sym))
+ {
+ (*info->fprintf_func) (info->stream, "+");
+ objdump_print_value (vma - bfd_asymbol_value (sym), info, true);
+ }
+ (*info->fprintf_func) (info->stream, ">");
}
- fprintf (info->stream, ">");
}
-void
-disassemble_data (abfd)
+/* Print VMA to INFO, symbolically if possible. If SKIP_ZEROES is
+ true, don't output leading zeroes. */
+
+static void
+objdump_print_addr (vma, info, skip_zeroes)
+ bfd_vma vma;
+ struct disassemble_info *info;
+ boolean skip_zeroes;
+{
+ struct objdump_disasm_info *aux;
+ asymbol *sym;
+
+ if (sorted_symcount < 1)
+ {
+ objdump_print_value (vma, info, skip_zeroes);
+ return;
+ }
+
+ aux = (struct objdump_disasm_info *) info->application_data;
+ sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
+ (long *) NULL);
+ objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
+ skip_zeroes);
+}
+
+/* Print VMA to INFO. This function is passed to the disassembler
+ routine. */
+
+static void
+objdump_print_address (vma, info)
+ bfd_vma vma;
+ struct disassemble_info *info;
+{
+ objdump_print_addr (vma, info, ! prefix_addresses);
+}
+
+/* Hold the last function name and the last line number we displayed
+ in a disassembly. */
+
+static char *prev_functionname;
+static unsigned int prev_line;
+
+/* We keep a list of all files that we have seen when doing a
+ dissassembly with source, so that we know how much of the file to
+ display. This can be important for inlined functions. */
+
+struct print_file_list
+{
+ struct print_file_list *next;
+ char *filename;
+ unsigned int line;
+ FILE *f;
+};
+
+static struct print_file_list *print_files;
+
+/* The number of preceding context lines to show when we start
+ displaying a file for the first time. */
+
+#define SHOW_PRECEDING_CONTEXT_LINES (5)
+
+/* Skip ahead to a given line in a file, optionally printing each
+ line. */
+
+static void
+skip_to_line PARAMS ((struct print_file_list *, unsigned int, boolean));
+
+static void
+skip_to_line (p, line, show)
+ struct print_file_list *p;
+ unsigned int line;
+ boolean show;
+{
+ while (p->line < line)
+ {
+ char buf[100];
+
+ if (fgets (buf, sizeof buf, p->f) == NULL)
+ {
+ fclose (p->f);
+ p->f = NULL;
+ break;
+ }
+
+ if (show)
+ printf ("%s", buf);
+
+ if (strchr (buf, '\n') != NULL)
+ ++p->line;
+ }
+}
+
+/* Show the line number, or the source line, in a dissassembly
+ listing. */
+
+static void
+show_line (abfd, section, off)
bfd *abfd;
+ asection *section;
+ bfd_vma off;
{
- long i;
- unsigned int (*print) () = 0; /* Old style */
- disassembler_ftype disassemble_fn = 0; /* New style */
- struct disassemble_info disasm_info;
- struct objdump_disasm_info aux;
+ CONST char *filename;
+ CONST char *functionname;
+ unsigned int line;
- int prevline = 0;
- char *prev_function = NULL;
+ if (! with_line_numbers && ! with_source_code)
+ return;
- asection *section;
+ if (! bfd_find_nearest_line (abfd, section, syms, off, &filename,
+ &functionname, &line))
+ return;
+
+ if (filename != NULL && *filename == '\0')
+ filename = NULL;
+ if (functionname != NULL && *functionname == '\0')
+ functionname = NULL;
- boolean done_dot = false;
+ if (with_line_numbers)
+ {
+ if (functionname != NULL
+ && (prev_functionname == NULL
+ || strcmp (functionname, prev_functionname) != 0))
+ printf ("%s():\n", functionname);
+ if (line > 0 && line != prev_line)
+ printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
+ }
- /* If we are dumping relocation information, read the relocs for
- each section we are going to disassemble. We must do this before
- we sort the symbols. */
- if (dump_reloc_info)
+ if (with_source_code
+ && filename != NULL
+ && line > 0)
{
- for (section = abfd->sections;
- section != (asection *) NULL;
- section = section->next)
+ struct print_file_list **pp, *p;
+
+ for (pp = &print_files; *pp != NULL; pp = &(*pp)->next)
+ if (strcmp ((*pp)->filename, filename) == 0)
+ break;
+ p = *pp;
+
+ if (p != NULL)
{
- long relsize;
- arelent **relpp;
+ if (p != print_files)
+ {
+ int l;
+
+ /* We have reencountered a file name which we saw
+ earlier. This implies that either we are dumping out
+ code from an included file, or the same file was
+ linked in more than once. There are two common cases
+ of an included file: inline functions in a header
+ file, and a bison or flex skeleton file. In the
+ former case we want to just start printing (but we
+ back up a few lines to give context); in the latter
+ case we want to continue from where we left off. I
+ can't think of a good way to distinguish the cases,
+ so I used a heuristic based on the file name. */
+ if (strcmp (p->filename + strlen (p->filename) - 2, ".h") != 0)
+ l = p->line;
+ else
+ {
+ l = line - SHOW_PRECEDING_CONTEXT_LINES;
+ if (l <= 0)
+ l = 1;
+ }
- if ((section->flags & SEC_LOAD) == 0
- || (! disassemble_all
- && only == NULL
- && (section->flags & SEC_CODE) == 0))
- continue;
- if (only != (char *) NULL && strcmp (only, section->name) != 0)
- continue;
- if ((section->flags & SEC_RELOC) == 0)
- continue;
+ if (p->f == NULL)
+ {
+ p->f = fopen (p->filename, "r");
+ p->line = 0;
+ }
+ if (p->f != NULL)
+ skip_to_line (p, l, false);
- /* We store the reloc information in the reloc_count and
- orelocation fields. */
+ if (print_files->f != NULL)
+ {
+ fclose (print_files->f);
+ print_files->f = NULL;
+ }
+ }
- relsize = bfd_get_reloc_upper_bound (abfd, section);
- if (relsize < 0)
- bfd_fatal (bfd_get_filename (abfd));
+ if (p->f != NULL)
+ {
+ skip_to_line (p, line, true);
+ *pp = p->next;
+ p->next = print_files;
+ print_files = p;
+ }
+ }
+ else
+ {
+ FILE *f;
- if (relsize == 0)
- section->reloc_count = 0;
- else
+ f = fopen (filename, "r");
+ if (f != NULL)
{
- long relcount;
+ int l;
- relpp = (arelent **) xmalloc (relsize);
- relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
- if (relcount < 0)
- bfd_fatal (bfd_get_filename (abfd));
- section->reloc_count = relcount;
- section->orelocation = relpp;
+ p = ((struct print_file_list *)
+ xmalloc (sizeof (struct print_file_list)));
+ p->filename = xmalloc (strlen (filename) + 1);
+ strcpy (p->filename, filename);
+ p->line = 0;
+ p->f = f;
+
+ if (print_files != NULL && print_files->f != NULL)
+ {
+ fclose (print_files->f);
+ print_files->f = NULL;
+ }
+ p->next = print_files;
+ print_files = p;
+
+ l = line - SHOW_PRECEDING_CONTEXT_LINES;
+ if (l <= 0)
+ l = 1;
+ skip_to_line (p, l, false);
+ if (p->f != NULL)
+ skip_to_line (p, line, true);
}
}
}
- /* Replace symbol section relative values with abs values. */
- for (i = 0; i < symcount; i++)
+ if (functionname != NULL
+ && (prev_functionname == NULL
+ || strcmp (functionname, prev_functionname) != 0))
{
- syms[i]->value += syms[i]->section->vma;
+ if (prev_functionname != NULL)
+ free (prev_functionname);
+ prev_functionname = xmalloc (strlen (functionname) + 1);
+ strcpy (prev_functionname, functionname);
}
- symcount = remove_useless_symbols (syms, symcount);
+ if (line > 0 && line != prev_line)
+ prev_line = line;
+}
+
+/* Pseudo FILE object for strings. */
+typedef struct {
+ char *buffer;
+ char *current;
+} SFILE;
+
+/* sprintf to a "stream" */
+
+#ifdef ANSI_PROTOTYPES
+static int
+objdump_sprintf (SFILE *f, const char *format, ...)
+{
+ int n;
+ va_list args;
+
+ va_start (args, format);
+ vsprintf (f->current, format, args);
+ f->current += n = strlen (f->current);
+ va_end (args);
+ return n;
+}
+#else
+static int
+objdump_sprintf (va_alist)
+ va_dcl
+{
+ int n;
+ SFILE *f;
+ const char *format;
+ va_list args;
+
+ va_start (args);
+ f = va_arg (args, SFILE *);
+ format = va_arg (args, const char *);
+ vsprintf (f->current, format, args);
+ f->current += n = strlen (f->current);
+ va_end (args);
+ return n;
+}
+#endif
+
+/* The number of zeroes we want to see before we start skipping them.
+ The number is arbitrarily chosen. */
+
+#define SKIP_ZEROES (8)
+
+/* The number of zeroes to skip at the end of a section. If the
+ number of zeroes at the end is between SKIP_ZEROES_AT_END and
+ SKIP_ZEROES, they will be disassembled. If there are fewer than
+ SKIP_ZEROES_AT_END, they will be skipped. This is a heuristic
+ attempt to avoid disassembling zeroes inserted by section
+ alignment. */
+
+#define SKIP_ZEROES_AT_END (3)
+
+/* Disassemble some data in memory between given values. */
+
+static void
+disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp,
+ relppend)
+ struct disassemble_info *info;
+ disassembler_ftype disassemble_fn;
+ boolean insns;
+ bfd_byte *data;
+ long start;
+ long stop;
+ arelent ***relppp;
+ arelent **relppend;
+{
+ struct objdump_disasm_info *aux;
+ asection *section;
+ int bytes_per_line;
+ boolean done_dot;
+ int skip_addr_chars;
+ long i;
+
+ aux = (struct objdump_disasm_info *) info->application_data;
+ section = aux->sec;
+
+ if (insns)
+ bytes_per_line = 4;
+ else
+ bytes_per_line = 16;
+
+ /* Figure out how many characters to skip at the start of an
+ address, to make the disassembly look nicer. We discard leading
+ zeroes in chunks of 4, ensuring that there is always a leading
+ zero remaining. */
+ skip_addr_chars = 0;
+ if (! prefix_addresses)
+ {
+ char buf[30];
+ char *s;
+
+ sprintf_vma (buf,
+ section->vma + bfd_section_size (section->owner, section));
+ s = buf;
+ while (s[0] == '0' && s[1] == '0' && s[2] == '0' && s[3] == '0'
+ && s[4] == '0')
+ {
+ skip_addr_chars += 4;
+ s += 4;
+ }
+ }
+
+ info->insn_info_valid = 0;
+
+ done_dot = false;
+ i = start;
+ while (i < stop)
+ {
+ long z;
+ int bytes;
+ boolean need_nl = false;
+
+ /* If we see more than SKIP_ZEROES bytes of zeroes, we just
+ print `...'. */
+ for (z = i; z < stop; z++)
+ if (data[z] != 0)
+ break;
+ if (! disassemble_zeroes
+ && (info->insn_info_valid == 0
+ || info->branch_delay_insns == 0)
+ && (z - i >= SKIP_ZEROES
+ || (z == stop && z - i < SKIP_ZEROES_AT_END)))
+ {
+ printf ("\t...\n");
+
+ /* If there are more nonzero bytes to follow, we only skip
+ zeroes in multiples of 4, to try to avoid running over
+ the start of an instruction which happens to start with
+ zero. */
+ if (z != stop)
+ z = i + ((z - i) &~ 3);
+
+ bytes = z - i;
+ }
+ else
+ {
+ char buf[1000];
+ SFILE sfile;
+ int pb = 0;
+
+ done_dot = false;
+
+ if (with_line_numbers || with_source_code)
+ show_line (aux->abfd, section, i);
+
+ if (! prefix_addresses)
+ {
+ char *s;
+
+ sprintf_vma (buf, section->vma + i);
+ for (s = buf + skip_addr_chars; *s == '0'; s++)
+ *s = ' ';
+ if (*s == '\0')
+ *--s = '0';
+ printf ("%s:\t", buf + skip_addr_chars);
+ }
+ else
+ {
+ aux->require_sec = true;
+ objdump_print_address (section->vma + i, info);
+ aux->require_sec = false;
+ putchar (' ');
+ }
+
+ if (insns)
+ {
+ sfile.buffer = sfile.current = buf;
+ info->fprintf_func = (fprintf_ftype) objdump_sprintf;
+ info->stream = (FILE *) &sfile;
+ info->bytes_per_line = 0;
+ bytes = (*disassemble_fn) (section->vma + i, info);
+ info->fprintf_func = (fprintf_ftype) fprintf;
+ info->stream = stdout;
+ if (info->bytes_per_line != 0)
+ bytes_per_line = info->bytes_per_line;
+ if (bytes < 0)
+ break;
+ }
+ else
+ {
+ long j;
+
+ bytes = bytes_per_line;
+ if (i + bytes > stop)
+ bytes = stop - i;
+
+ for (j = i; j < i + bytes; ++j)
+ {
+ if (isprint (data[j]))
+ buf[j - i] = data[j];
+ else
+ buf[j - i] = '.';
+ }
+ buf[j - i] = '\0';
+ }
+
+ if (! prefix_addresses || show_raw_insn)
+ {
+ long j;
+
+ /* If ! prefix_addresses and ! wide_output, we print
+ four bytes per line. */
+ pb = bytes;
+ if (pb > bytes_per_line && ! prefix_addresses && ! wide_output)
+ pb = bytes_per_line;
+
+ for (j = i; j < i + pb; ++j)
+ {
+ printf ("%02x", (unsigned) data[j]);
+ putchar (' ');
+ }
+
+ for (; pb < bytes_per_line; ++pb)
+ printf (" ");
+
+ /* Separate raw data from instruction by extra space. */
+ if (insns)
+ putchar ('\t');
+ else
+ printf (" ");
+ }
+
+ printf ("%s", buf);
+
+ if (! prefix_addresses || show_raw_insn)
+ {
+ while (pb < bytes)
+ {
+ long j;
+
+ putchar ('\n');
+ j = i + pb;
+ printf ("%6lx:\t", (unsigned long) (j - start));
+ pb += bytes_per_line;
+ if (pb > bytes)
+ pb = bytes;
+ for (; j < i + pb; ++j)
+ {
+ printf ("%02x", (unsigned) data[j]);
+ putchar (' ');
+ }
+ }
+ }
+
+ if (!wide_output)
+ putchar ('\n');
+ else
+ need_nl = true;
+ }
+
+ if (dump_reloc_info
+ && (section->flags & SEC_RELOC) != 0)
+ {
+ while ((*relppp) < relppend
+ && ((**relppp)->address >= (bfd_vma) i
+ && (**relppp)->address < (bfd_vma) i + bytes))
+ {
+ arelent *q;
+ const char *sym_name;
+
+ q = **relppp;
+
+ if (wide_output)
+ putchar ('\t');
+ else
+ printf ("\t\t\t");
+
+ objdump_print_value (section->vma + q->address, info, true);
+
+ printf (": %s\t", q->howto->name);
+
+ if (q->sym_ptr_ptr != NULL
+ && *q->sym_ptr_ptr != NULL)
+ {
+ sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
+ if (sym_name == NULL || *sym_name == '\0')
+ {
+ asection *sym_sec;
+
+ sym_sec = bfd_get_section (*q->sym_ptr_ptr);
+ sym_name = bfd_get_section_name (abfd, sym_sec);
+ if (sym_name == NULL || *sym_name == '\0')
+ sym_name = "*unknown*";
+ }
+ }
+ else
+ sym_name = "*unknown*";
+
+ printf ("%s", sym_name);
+
+ if (q->addend)
+ {
+ printf ("+0x");
+ objdump_print_value (q->addend, info, true);
+ }
+
+ printf ("\n");
+ need_nl = false;
+ ++(*relppp);
+ }
+ }
+
+ if (need_nl)
+ printf ("\n");
+
+ i += bytes;
+ }
+}
+
+/* Disassemble the contents of an object file. */
+
+static void
+disassemble_data (abfd)
+ bfd *abfd;
+{
+ long i;
+ disassembler_ftype disassemble_fn;
+ struct disassemble_info disasm_info;
+ struct objdump_disasm_info aux;
+ asection *section;
+
+ print_files = NULL;
+ prev_functionname = NULL;
+ prev_line = -1;
+
+ /* We make a copy of syms to sort. We don't want to sort syms
+ because that will screw up the relocs. */
+ sorted_syms = (asymbol **) xmalloc (symcount * sizeof (asymbol *));
+ memcpy (sorted_syms, syms, symcount * sizeof (asymbol *));
+
+ sorted_symcount = remove_useless_symbols (sorted_syms, symcount);
/* Sort the symbols into section and symbol order */
- qsort (syms, symcount, sizeof (asymbol *), compare_symbols);
+ qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
- INIT_DISASSEMBLE_INFO(disasm_info, stdout);
+ INIT_DISASSEMBLE_INFO(disasm_info, stdout, fprintf);
disasm_info.application_data = (PTR) &aux;
aux.abfd = abfd;
disasm_info.print_address_func = objdump_print_address;
if (machine != (char *) NULL)
{
- bfd_arch_info_type *info = bfd_scan_arch (machine);
+ const bfd_arch_info_type *info = bfd_scan_arch (machine);
if (info == NULL)
{
fprintf (stderr, "%s: Can't use supplied machine %s\n",
abfd->arch_info = info;
}
- /* See if we can disassemble using bfd. */
-
- if (abfd->arch_info->disassemble)
+ if (endian != BFD_ENDIAN_UNKNOWN)
{
- print = abfd->arch_info->disassemble;
+ struct bfd_target *xvec;
+
+ xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
+ memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
+ xvec->byteorder = endian;
+ abfd->xvec = xvec;
}
- else
+
+ disassemble_fn = disassembler (abfd);
+ if (!disassemble_fn)
{
- disassemble_fn = disassembler (abfd);
- if (!disassemble_fn)
- {
- fprintf (stderr, "%s: Can't disassemble for architecture %s\n",
- program_name,
- bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
- exit (1);
- }
+ fprintf (stderr, "%s: Can't disassemble for architecture %s\n",
+ program_name,
+ bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
+ exit (1);
}
+ disasm_info.flavour = bfd_get_flavour (abfd);
+ disasm_info.arch = bfd_get_arch (abfd);
+ disasm_info.mach = bfd_get_mach (abfd);
+ if (bfd_big_endian (abfd))
+ disasm_info.endian = BFD_ENDIAN_BIG;
+ else if (bfd_little_endian (abfd))
+ disasm_info.endian = BFD_ENDIAN_LITTLE;
+ else
+ /* ??? Aborting here seems too drastic. We could default to big or little
+ instead. */
+ disasm_info.endian = BFD_ENDIAN_UNKNOWN;
+
for (section = abfd->sections;
section != (asection *) NULL;
section = section->next)
{
bfd_byte *data = NULL;
bfd_size_type datasize = 0;
+ arelent **relbuf = NULL;
arelent **relpp = NULL;
arelent **relppend = NULL;
+ long stop;
if ((section->flags & SEC_LOAD) == 0
|| (! disassemble_all
if (dump_reloc_info
&& (section->flags & SEC_RELOC) != 0)
{
- /* Sort the relocs by address. */
- qsort (section->orelocation, section->reloc_count,
- sizeof (arelent *), compare_relocs);
- relpp = section->orelocation;
- relppend = relpp + section->reloc_count;
+ long relsize;
+
+ relsize = bfd_get_reloc_upper_bound (abfd, section);
+ if (relsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ if (relsize > 0)
+ {
+ long relcount;
+
+ relbuf = (arelent **) xmalloc (relsize);
+ relcount = bfd_canonicalize_reloc (abfd, section, relbuf, syms);
+ if (relcount < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ /* Sort the relocs by address. */
+ qsort (relbuf, relcount, sizeof (arelent *), compare_relocs);
+
+ relpp = relbuf;
+ relppend = relpp + relcount;
+ }
}
printf ("Disassembly of section %s:\n", section->name);
disasm_info.buffer = data;
disasm_info.buffer_vma = section->vma;
disasm_info.buffer_length = datasize;
- i = 0;
- while (i < disasm_info.buffer_length)
+ if (start_address == (bfd_vma) -1
+ || start_address < disasm_info.buffer_vma)
+ i = 0;
+ else
+ i = start_address - disasm_info.buffer_vma;
+ if (stop_address == (bfd_vma) -1)
+ stop = datasize;
+ else
{
- int bytes;
-
- if (data[i] == 0 && data[i + 1] == 0 && data[i + 2] == 0 &&
- data[i + 3] == 0)
- {
- if (done_dot == false)
- {
- printf ("...\n");
- done_dot = true;
- }
- bytes = 4;
- }
+ if (stop_address < disasm_info.buffer_vma)
+ stop = 0;
else
+ stop = stop_address - disasm_info.buffer_vma;
+ if (stop > disasm_info.buffer_length)
+ stop = disasm_info.buffer_length;
+ }
+
+ if (prefix_addresses)
+ disassemble_bytes (&disasm_info, disassemble_fn, true, data, i, stop,
+ &relpp, relppend);
+ else
+ {
+ asymbol *sym;
+ long place;
+
+ sym = find_symbol_for_address (abfd, section, i, true, &place);
+ ++place;
+ while (i < stop)
{
- done_dot = false;
- if (with_line_numbers)
- {
- CONST char *filename;
- CONST char *functionname;
- unsigned int line;
-
- if (bfd_find_nearest_line (abfd,
- section,
- syms,
- section->vma + i,
- &filename,
- &functionname,
- &line))
- {
- if (functionname
- && *functionname != '\0'
- && (prev_function == NULL
- || strcmp (functionname, prev_function) != 0))
- {
- printf ("%s():\n", functionname);
- if (prev_function != NULL)
- free (prev_function);
- prev_function = xmalloc (strlen (functionname) + 1);
- strcpy (prev_function, functionname);
- }
- if (!filename)
- filename = "???";
- if (line && line != prevline)
- {
- printf ("%s:%u\n", filename, line);
- prevline = line;
- }
- }
- }
- aux.require_sec = true;
- objdump_print_address (section->vma + i, &disasm_info);
- aux.require_sec = false;
- putchar (' ');
+ asymbol *nextsym;
+ long nextstop;
+ boolean insns;
- if (disassemble_fn)
- {
- /* New style */
- bytes = (*disassemble_fn) (section->vma + i, &disasm_info);
- if (bytes < 0)
- break;
- }
+ disasm_info.symbol = sym;
+
+ printf ("\n");
+ objdump_print_addr_with_sym (abfd, section, sym,
+ section->vma + i,
+ &disasm_info,
+ false);
+ printf (":\n");
+
+ if (sym == NULL)
+ nextsym = NULL;
else
{
- /* Old style */
- bytes = print (section->vma + i, data + i, stdout);
+ while (place < sorted_symcount
+ && (sorted_syms[place]->section != section
+ || (bfd_asymbol_value (sorted_syms[place])
+ <= bfd_asymbol_value (sym))))
+ ++place;
+ if (place >= sorted_symcount)
+ nextsym = NULL;
+ else
+ nextsym = sorted_syms[place];
}
- putchar ('\n');
- }
- if (dump_reloc_info
- && (section->flags & SEC_RELOC) != 0)
- {
- while (relpp < relppend
- && ((*relpp)->address >= i
- && (*relpp)->address < i + bytes))
+ if (nextsym == NULL)
+ nextstop = stop;
+ else
{
- arelent *q;
- const char *sym_name;
-
- q = *relpp;
-
- printf ("\t\tRELOC: ");
-
- printf_vma (section->vma + q->address);
-
- printf (" %s ", q->howto->name);
-
- if (q->sym_ptr_ptr != NULL
- && *q->sym_ptr_ptr != NULL)
- {
- sym_name = bfd_asymbol_name (*q->sym_ptr_ptr);
- if (sym_name == NULL || *sym_name == '\0')
- {
- asection *sym_sec;
-
- sym_sec = bfd_get_section (*q->sym_ptr_ptr);
- sym_name = bfd_get_section_name (abfd, sym_sec);
- if (sym_name == NULL || *sym_name == '\0')
- sym_name = "*unknown*";
- }
- }
-
- printf ("%s", sym_name);
+ nextstop = bfd_asymbol_value (nextsym) - section->vma;
+ if (nextstop > stop)
+ nextstop = stop;
+ }
- if (q->addend)
- {
- printf ("+0x");
- printf_vma (q->addend);
- }
+ /* If a symbol is explicitly marked as being an object
+ rather than a function, just dump the bytes without
+ disassembling them. */
+ if (disassemble_all
+ || sym == NULL
+ || ((sym->flags & BSF_OBJECT) == 0
+ && (strstr (bfd_asymbol_name (sym), "gnu_compiled")
+ == NULL)
+ && (strstr (bfd_asymbol_name (sym), "gcc2_compiled")
+ == NULL))
+ || (sym->flags & BSF_FUNCTION) != 0)
+ insns = true;
+ else
+ insns = false;
- printf ("\n");
+ disassemble_bytes (&disasm_info, disassemble_fn, insns, data, i,
+ nextstop, &relpp, relppend);
- ++relpp;
- }
+ i = nextstop;
+ sym = nextsym;
}
-
- i += bytes;
}
+
free (data);
+ if (relbuf != NULL)
+ free (relbuf);
}
+ free (sorted_syms);
}
\f
could be a direct-mapped table, but instead we build one the first
time we need it. */
-char **stab_name;
-
-struct stab_print {
- int value;
- char *string;
-};
-
-struct stab_print stab_print[] = {
-#define __define_stab(NAME, CODE, STRING) {CODE, STRING},
-#include "aout/stab.def"
-#undef __define_stab
- {0, ""}
-};
-
-void dump_section_stabs PARAMS ((bfd *abfd, char *stabsect_name,
- char *strsect_name));
+static void dump_section_stabs PARAMS ((bfd *abfd, char *stabsect_name,
+ char *strsect_name));
/* Dump the stabs sections from an object file that has a section that
- uses Sun stabs encoding. It has to use some hooks into BFD because
- string table sections are not normally visible to BFD callers. */
+ uses Sun stabs encoding. */
-void
+static void
dump_stabs (abfd)
bfd *abfd;
{
- /* Allocate and initialize stab name array if first time. */
- if (stab_name == NULL)
- {
- int i;
-
- stab_name = (char **) xmalloc (256 * sizeof(char *));
- /* Clear the array. */
- for (i = 0; i < 256; i++)
- stab_name[i] = NULL;
- /* Fill in the defined stabs. */
- for (i = 0; *stab_print[i].string; i++)
- stab_name[stab_print[i].value] = stab_print[i].string;
- }
-
dump_section_stabs (abfd, ".stab", ".stabstr");
dump_section_stabs (abfd, ".stab.excl", ".stab.exclstr");
dump_section_stabs (abfd, ".stab.index", ".stab.indexstr");
dump_section_stabs (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
}
-static struct internal_nlist *stabs;
+static bfd_byte *stabs;
static bfd_size_type stab_size;
static char *strtab;
If the section exists and was read, allocate the space and return true.
Otherwise return false. */
-boolean
+static boolean
read_section_stabs (abfd, stabsect_name, strsect_name)
bfd *abfd;
char *stabsect_name;
stab_size = bfd_section_size (abfd, stabsect);
stabstr_size = bfd_section_size (abfd, stabstrsect);
- stabs = (struct internal_nlist *) xmalloc (stab_size);
+ stabs = (bfd_byte *) xmalloc (stab_size);
strtab = (char *) xmalloc (stabstr_size);
if (! bfd_get_section_contents (abfd, stabsect, (PTR) stabs, 0, stab_size))
return true;
}
-#define SWAP_SYMBOL(symp, abfd) \
-{ \
- (symp)->n_strx = bfd_h_get_32(abfd, \
- (unsigned char *)&(symp)->n_strx); \
- (symp)->n_desc = bfd_h_get_16 (abfd, \
- (unsigned char *)&(symp)->n_desc); \
- (symp)->n_value = bfd_h_get_32 (abfd, \
- (unsigned char *)&(symp)->n_value); \
-}
+/* Stabs entries use a 12 byte format:
+ 4 byte string table index
+ 1 byte stab type
+ 1 byte stab other field
+ 2 byte stab desc field
+ 4 byte stab value
+ FIXME: This will have to change for a 64 bit object format. */
+
+#define STRDXOFF (0)
+#define TYPEOFF (4)
+#define OTHEROFF (5)
+#define DESCOFF (6)
+#define VALOFF (8)
+#define STABSIZE (12)
/* Print ABFD's stabs section STABSECT_NAME (in `stabs'),
using string table section STRSECT_NAME (in `strtab'). */
-void
+static void
print_section_stabs (abfd, stabsect_name, strsect_name)
bfd *abfd;
char *stabsect_name;
{
int i;
unsigned file_string_table_offset = 0, next_file_string_table_offset = 0;
- struct internal_nlist *stabp = stabs,
- *stabs_end = (struct internal_nlist *) (stab_size + (char *) stabs);
+ bfd_byte *stabp, *stabs_end;
+
+ stabp = stabs;
+ stabs_end = stabp + stab_size;
printf ("Contents of %s section:\n\n", stabsect_name);
printf ("Symnum n_type n_othr n_desc n_value n_strx String\n");
We start the index at -1 because there is a dummy symbol on
the front of stabs-in-{coff,elf} sections that supplies sizes. */
- for (i = -1; stabp < stabs_end; stabp++, i++)
+ for (i = -1; stabp < stabs_end; stabp += STABSIZE, i++)
{
- SWAP_SYMBOL (stabp, abfd);
+ const char *name;
+ unsigned long strx;
+ unsigned char type, other;
+ unsigned short desc;
+ bfd_vma value;
+
+ strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
+ type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
+ other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
+ desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
+ value = bfd_h_get_32 (abfd, stabp + VALOFF);
+
printf ("\n%-6d ", i);
/* Either print the stab name, or, if unnamed, print its number
again (makes consistent formatting for tools like awk). */
- if (stab_name[stabp->n_type])
- printf ("%-6s", stab_name[stabp->n_type]);
- else if (stabp->n_type == N_UNDF)
+ name = bfd_get_stab_name (type);
+ if (name != NULL)
+ printf ("%-6s", name);
+ else if (type == N_UNDF)
printf ("HdrSym");
else
- printf ("%-6d", stabp->n_type);
- printf (" %-6d %-6d ", stabp->n_other, stabp->n_desc);
- printf_vma (stabp->n_value);
- printf (" %-6lu", stabp->n_strx);
+ printf ("%-6d", type);
+ printf (" %-6d %-6d ", other, desc);
+ printf_vma (value);
+ printf (" %-6lu", strx);
/* Symbols with type == 0 (N_UNDF) specify the length of the
string table associated with this file. We use that info
to know how to relocate the *next* file's string table indices. */
- if (stabp->n_type == N_UNDF)
+ if (type == N_UNDF)
{
file_string_table_offset = next_file_string_table_offset;
- next_file_string_table_offset += stabp->n_value;
+ next_file_string_table_offset += value;
}
else
{
/* Using the (possibly updated) string table offset, print the
string (if any) associated with this symbol. */
- if ((stabp->n_strx + file_string_table_offset) < stabstr_size)
- printf (" %s", &strtab[stabp->n_strx + file_string_table_offset]);
+ if ((strx + file_string_table_offset) < stabstr_size)
+ printf (" %s", &strtab[strx + file_string_table_offset]);
else
printf (" *");
}
printf ("\n\n");
}
-void
+static void
dump_section_stabs (abfd, stabsect_name, strsect_name)
bfd *abfd;
char *stabsect_name;
char *strsect_name;
{
- if (read_section_stabs (abfd, stabsect_name, strsect_name))
+ asection *s;
+
+ /* Check for section names for which stabsect_name is a prefix, to
+ handle .stab0, etc. */
+ for (s = abfd->sections;
+ s != NULL;
+ s = s->next)
{
- print_section_stabs (abfd, stabsect_name, strsect_name);
- free (stabs);
- free (strtab);
+ int len;
+
+ len = strlen (stabsect_name);
+
+/* If the prefix matches, and the files section name ends with a nul or a digit,
+ then we match. Ie: we want either an exact match or a a section followed by
+ a number. */
+ if (strncmp (stabsect_name, s->name, len) == 0
+ && (s->name[len] == '\000' || isdigit (s->name[len])))
+ {
+ if (read_section_stabs (abfd, s->name, strsect_name))
+ {
+ print_section_stabs (abfd, s->name, strsect_name);
+ free (stabs);
+ free (strtab);
+ }
+ }
}
}
\f
PF (BFD_IS_RELAXABLE, "BFD_IS_RELAXABLE");
printf ("\nstart address 0x");
printf_vma (abfd->start_address);
+ printf ("\n");
+}
+\f
+static void
+dump_bfd_private_header (abfd)
+bfd *abfd;
+{
+ bfd_print_private_bfd_data (abfd, stdout);
}
static void
print_arelt_descr (stdout, abfd, true);
if (dump_file_header)
dump_bfd_header (abfd);
+ if (dump_private_headers)
+ dump_bfd_private_header (abfd);
putchar ('\n');
if (dump_section_headers)
dump_headers (abfd);
- if (dump_symtab || dump_reloc_info || disassemble)
+ if (dump_symtab || dump_reloc_info || disassemble || dump_debugging)
{
syms = slurp_symtab (abfd);
}
dump_dynamic_relocs (abfd);
if (dump_section_contents)
dump_data (abfd);
- /* Note that disassemble_data re-orders the syms table, but that is
- safe - as long as it is done last! */
if (disassemble)
disassemble_data (abfd);
+ if (dump_debugging)
+ {
+ PTR dhandle;
+
+ dhandle = read_debugging_info (abfd, syms, symcount);
+ if (dhandle != NULL)
+ {
+ if (! print_debugging_info (stdout, dhandle))
+ fprintf (stderr, "%s: printing debugging information failed\n",
+ bfd_get_filename (abfd));
+ }
+ }
+ if (syms)
+ {
+ free (syms);
+ syms = NULL;
+ }
+ if (dynsyms)
+ {
+ free (dynsyms);
+ dynsyms = NULL;
+ }
}
static void
bfd_byte *data = 0;
bfd_size_type datasize = 0;
bfd_size_type i;
+ bfd_size_type start, stop;
for (section = abfd->sections; section != NULL; section =
section->next)
bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section));
- for (i = 0; i < bfd_section_size (abfd, section); i += onaline)
+ if (start_address == (bfd_vma) -1
+ || start_address < section->vma)
+ start = 0;
+ else
+ start = start_address - section->vma;
+ if (stop_address == (bfd_vma) -1)
+ stop = bfd_section_size (abfd, section);
+ else
+ {
+ if (stop_address < section->vma)
+ stop = 0;
+ else
+ stop = stop_address - section->vma;
+ if (stop > bfd_section_size (abfd, section))
+ stop = bfd_section_size (abfd, section);
+ }
+ for (i = start; i < stop; i += onaline)
{
bfd_size_type j;
printf (" %04lx ", (unsigned long int) (i + section->vma));
for (j = i; j < i + onaline; j++)
{
- if (j < bfd_section_size (abfd, section))
+ if (j < stop)
printf ("%02x", (unsigned) (data[j]));
else
printf (" ");
printf (" ");
for (j = i; j < i + onaline; j++)
{
- if (j >= bfd_section_size (abfd, section))
+ if (j >= stop)
printf (" ");
else
printf ("%c", isprint (data[j]) ? data[j] : '.');
else if ((a->flags & SEC_RELOC) == 0)
continue;
- printf ("RELOCATION RECORDS FOR [%s]:", a->name);
-
relsize = bfd_get_reloc_upper_bound (abfd, a);
if (relsize < 0)
bfd_fatal (bfd_get_filename (abfd));
+ printf ("RELOCATION RECORDS FOR [%s]:", a->name);
+
if (relsize == 0)
{
printf (" (none)\n\n");
else
{
relpp = (arelent **) xmalloc (relsize);
- /* Note that this must be done *before* we sort the syms table. */
relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms);
if (relcount < 0)
bfd_fatal (bfd_get_filename (abfd));
else
{
printf ("\n");
- dump_reloc_set (abfd, relpp, relcount);
+ dump_reloc_set (abfd, a, relpp, relcount);
printf ("\n\n");
}
free (relpp);
arelent **relpp;
long relcount;
- printf ("DYNAMIC RELOCATION RECORDS");
-
relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
if (relsize < 0)
bfd_fatal (bfd_get_filename (abfd));
+ printf ("DYNAMIC RELOCATION RECORDS");
+
if (relsize == 0)
{
printf (" (none)\n\n");
else
{
printf ("\n");
- dump_reloc_set (abfd, relpp, relcount);
+ dump_reloc_set (abfd, (asection *) NULL, relpp, relcount);
printf ("\n\n");
}
free (relpp);
}
static void
-dump_reloc_set (abfd, relpp, relcount)
+dump_reloc_set (abfd, sec, relpp, relcount)
bfd *abfd;
+ asection *sec;
arelent **relpp;
long relcount;
{
arelent **p;
+ char *last_filename, *last_functionname;
+ unsigned int last_line;
/* Get column headers lined up reasonably. */
{
printf ("OFFSET %*s TYPE %*s VALUE \n", width, "", 12, "");
}
+ last_filename = NULL;
+ last_functionname = NULL;
+ last_line = 0;
+
for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--)
{
arelent *q = *p;
- CONST char *sym_name;
- CONST char *section_name;
+ const char *filename, *functionname;
+ unsigned int line;
+ const char *sym_name;
+ const char *section_name;
+
+ if (start_address != (bfd_vma) -1
+ && q->address < start_address)
+ continue;
+ if (stop_address != (bfd_vma) -1
+ && q->address > stop_address)
+ continue;
+
+ if (with_line_numbers
+ && sec != NULL
+ && bfd_find_nearest_line (abfd, sec, syms, q->address,
+ &filename, &functionname, &line))
+ {
+ if (functionname != NULL
+ && (last_functionname == NULL
+ || strcmp (functionname, last_functionname) != 0))
+ {
+ printf ("%s():\n", functionname);
+ if (last_functionname != NULL)
+ free (last_functionname);
+ last_functionname = xstrdup (functionname);
+ }
+ if (line > 0
+ && (line != last_line
+ || (filename != NULL
+ && last_filename != NULL
+ && strcmp (filename, last_filename) != 0)))
+ {
+ printf ("%s:%u\n", filename == NULL ? "???" : filename, line);
+ last_line = line;
+ if (last_filename != NULL)
+ free (last_filename);
+ if (filename == NULL)
+ last_filename = NULL;
+ else
+ last_filename = xstrdup (filename);
+ }
+ }
if (q->sym_ptr_ptr && *q->sym_ptr_ptr)
{
/* The length of the longest architecture name + 1. */
#define LONGEST_ARCH sizeof("rs6000:6000")
+static const char *
+endian_string (endian)
+ enum bfd_endian endian;
+{
+ if (endian == BFD_ENDIAN_BIG)
+ return "big endian";
+ else if (endian == BFD_ENDIAN_LITTLE)
+ return "little endian";
+ else
+ return "endianness unknown";
+}
+
/* List the targets that BFD is configured to support, each followed
by its endianness and the architectures it supports. */
static void
display_target_list ()
{
- extern char *tmpnam ();
extern bfd_target *bfd_target_vector[];
char *dummy_name;
int t;
- dummy_name = tmpnam ((char *) NULL);
+ dummy_name = choose_temp_base ();
for (t = 0; bfd_target_vector[t]; t++)
{
bfd_target *p = bfd_target_vector[t];
int a;
printf ("%s\n (header %s, data %s)\n", p->name,
- p->header_byteorder_big_p ? "big endian" : "little endian",
- p->byteorder_big_p ? "big endian" : "little endian");
+ endian_string (p->header_byteorder),
+ endian_string (p->byteorder));
if (abfd == NULL)
{
bfd_printable_arch_mach ((enum bfd_architecture) a, 0));
}
unlink (dummy_name);
+ free (dummy_name);
}
/* Print a table showing which architectures are supported for entries
int last;
{
extern bfd_target *bfd_target_vector[];
- extern char *tmpnam ();
int t, a;
char *dummy_name;
printf ("%s ", bfd_target_vector[t]->name);
putchar ('\n');
- dummy_name = tmpnam ((char *) NULL);
+ dummy_name = choose_temp_base ();
for (a = (int) bfd_arch_obscure + 1; a < (int) bfd_arch_last; a++)
if (strcmp (bfd_printable_arch_mach (a, 0), "UNKNOWN!") != 0)
{
putchar ('\n');
}
unlink (dummy_name);
+ free (dummy_name);
}
/* Print tables of all the target-architecture combinations that
program_name = *argv;
xmalloc_set_program_name (program_name);
+ START_PROGRESS (program_name, 0);
+
bfd_init ();
- while ((c = getopt_long (argc, argv, "ib:m:VdDlfahrRtTxsj:", long_options,
- (int *) 0))
+ while ((c = getopt_long (argc, argv, "pib:m:VdDlfahrRtTxsSj:wE:",
+ long_options, (int *) 0))
!= EOF)
{
- seenflag = true;
+ if (c != 'l' && c != OPTION_START_ADDRESS && c != OPTION_STOP_ADDRESS)
+ seenflag = true;
switch (c)
{
case 0:
case 'i':
formats_info = true;
break;
+ case 'p':
+ dump_private_headers = 1;
+ break;
case 'x':
+ dump_private_headers = 1;
dump_symtab = 1;
dump_reloc_info = 1;
dump_file_header = true;
case 'D':
disassemble = disassemble_all = true;
break;
+ case 'S':
+ disassemble = true;
+ with_source_code = true;
+ break;
case 's':
dump_section_contents = 1;
break;
case 'V':
show_version = 1;
break;
+ case 'w':
+ wide_output = 1;
+ break;
+ case OPTION_START_ADDRESS:
+ start_address = parse_vma (optarg, "--start-address");
+ break;
+ case OPTION_STOP_ADDRESS:
+ stop_address = parse_vma (optarg, "--stop-address");
+ break;
+ case 'E':
+ if (strcmp (optarg, "B") == 0)
+ endian = BFD_ENDIAN_BIG;
+ else if (strcmp (optarg, "L") == 0)
+ endian = BFD_ENDIAN_LITTLE;
+ else
+ {
+ fprintf (stderr, "%s: unrecognized -E option\n", program_name);
+ usage (stderr, 1);
+ }
+ break;
+ case OPTION_ENDIAN:
+ if (strncmp (optarg, "big", strlen (optarg)) == 0)
+ endian = BFD_ENDIAN_BIG;
+ else if (strncmp (optarg, "little", strlen (optarg)) == 0)
+ endian = BFD_ENDIAN_LITTLE;
+ else
+ {
+ fprintf (stderr, "%s: unrecognized --endian type `%s'\n",
+ program_name, optarg);
+ usage (stderr, 1);
+ }
+ break;
default:
usage (stderr, 1);
}
}
if (show_version)
- {
- printf ("GNU %s version %s\n", program_name, program_version);
- exit (0);
- }
+ print_version ("objdump");
if (seenflag == false)
usage (stderr, 1);
for (; optind < argc;)
display_file (argv[optind++], target);
}
+
+ END_PROGRESS (program_name);
+
return 0;
}
projects / deliverable / binutils-gdb.git / blobdiff