/* objdump.c -- dump information about an object file.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
+
+/* Objdump overview.
+
+ Objdump displays information about one or more object files, either on
+ their own, or inside libraries. It is commonly used as a disassembler,
+ but it can also display information about file headers, symbol tables,
+ relocations, debugging directives and more.
+
+ The flow of execution is as follows:
+
+ 1. Command line arguments are checked for control switches and the
+ information to be displayed is selected.
+
+ 2. Any remaining arguments are assumed to be object files, and they are
+ processed in order by display_bfd(). If the file is an archive each
+ of its elements is processed in turn.
+
+ 3. The file's target architecture and binary file format are determined
+ by bfd_check_format(). If they are recognised, then dump_bfd() is
+ called.
+
+ 4. dump_bfd() in turn calls separate functions to display the requested
+ item(s) of information(s). For example disassemble_data() is called if
+ a disassembly has been requested.
+
+ When disassembling the code loops through blocks of instructions bounded
+ by symbols, calling disassemble_bytes() on each block. The actual
+ disassembling is done by the libopcodes library, via a function pointer
+ supplied by the disassembler() function. */
#include "bfd.h"
-#include "bfdver.h"
#include "progress.h"
#include "bucomm.h"
+#include "dwarf.h"
#include "budemang.h"
#include "getopt.h"
#include "safe-ctype.h"
#define BYTES_IN_WORD 32
#include "aout/aout64.h"
-#ifdef NEED_DECLARATION_FPRINTF
-/* This is needed by INIT_DISASSEMBLE_INFO. */
-extern int fprintf
- PARAMS ((FILE *, const char *, ...));
-#endif
-
/* Exit status. */
static int exit_status = 0;
static char *default_target = NULL; /* Default at runtime. */
+/* The following variables are set based on arguments passed on the
+ command line. */
static int show_version = 0; /* Show the version number. */
static int dump_section_contents; /* -s */
static int dump_section_headers; /* -h */
static int with_line_numbers; /* -l */
static bfd_boolean with_source_code; /* -S */
static int show_raw_insn; /* --show-raw-insn */
+static int dump_dwarf_section_info; /* --dwarf */
static int dump_stab_section_info; /* --stabs */
static int do_demangle; /* -C, --demangle */
static bfd_boolean disassemble; /* -d */
static bfd_boolean disassemble_all; /* -D */
static int disassemble_zeroes; /* --disassemble-zeroes */
static bfd_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 */
+static int dump_debugging_tags; /* --debugging-tags */
+static int dump_special_syms = 0; /* --special-syms */
static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
static int file_start_context = 0; /* --file-start-context */
-/* Extra info to pass to the disassembler address printing function. */
+/* Pointer to an array of section names provided by
+ one or more "-j secname" command line options. */
+static char **only;
+/* The total number of slots in the only[] array. */
+static size_t only_size = 0;
+/* The number of occupied slots in the only[] array. */
+static size_t only_used = 0;
+
+/* Variables for handling include file path table. */
+static const char **include_paths;
+static int include_path_count;
+
+/* Extra info to pass to the section disassembler and address printing
+ function. */
struct objdump_disasm_info
{
- bfd *abfd;
- asection *sec;
- bfd_boolean require_sec;
+ bfd * abfd;
+ asection * sec;
+ bfd_boolean require_sec;
+ arelent ** dynrelbuf;
+ long dynrelcount;
+ disassembler_ftype disassemble_fn;
+ arelent * reloc;
};
/* Architecture to disassemble for, or default if NULL. */
-static char *machine = (char *) NULL;
+static char *machine = NULL;
/* Target specific options to the disassembler. */
-static char *disassembler_options = (char *) NULL;
+static char *disassembler_options = NULL;
/* Endianness to disassemble for, or default if BFD_ENDIAN_UNKNOWN. */
static enum bfd_endian endian = BFD_ENDIAN_UNKNOWN;
/* The dynamic symbol table. */
static asymbol **dynsyms;
+/* The synthetic symbol table. */
+static asymbol *synthsyms;
+static long synthcount = 0;
+
/* Number of symbols in `dynsyms'. */
static long dynsymcount = 0;
static char *strtab;
static bfd_size_type stabstr_size;
-
-/* Static declarations. */
-
-static void usage
- PARAMS ((FILE *, int));
-static void nonfatal
- PARAMS ((const char *));
-static void display_file
- PARAMS ((char *, char *));
-static void dump_section_header
- PARAMS ((bfd *, asection *, PTR));
-static void dump_headers
- PARAMS ((bfd *));
-static void dump_data
- PARAMS ((bfd *));
-static void dump_relocs
- PARAMS ((bfd *));
-static void dump_dynamic_relocs
- PARAMS ((bfd *));
-static void dump_reloc_set
- PARAMS ((bfd *, asection *, arelent **, long));
-static void dump_symbols
- PARAMS ((bfd *, bfd_boolean));
-static void dump_bfd_header
- PARAMS ((bfd *));
-static void dump_bfd_private_header
- PARAMS ((bfd *));
-static void dump_bfd
- PARAMS ((bfd *));
-static void display_bfd
- PARAMS ((bfd *));
-static void objdump_print_value
- PARAMS ((bfd_vma, struct disassemble_info *, bfd_boolean));
-static void objdump_print_symname
- PARAMS ((bfd *, struct disassemble_info *, asymbol *));
-static asymbol *find_symbol_for_address
- PARAMS ((bfd *, asection *, bfd_vma, bfd_boolean, long *));
-static void objdump_print_addr_with_sym
- PARAMS ((bfd *, asection *, asymbol *, bfd_vma,
- struct disassemble_info *, bfd_boolean));
-static void objdump_print_addr
- PARAMS ((bfd_vma, struct disassemble_info *, bfd_boolean));
-static void objdump_print_address
- PARAMS ((bfd_vma, struct disassemble_info *));
-static int objdump_symbol_at_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, bfd_boolean,
- bfd_byte *, bfd_vma, bfd_vma, arelent ***, arelent **));
-static void disassemble_data
- PARAMS ((bfd *));
-static asymbol ** slurp_symtab
- PARAMS ((bfd *));
-static asymbol ** slurp_dynamic_symtab
- PARAMS ((bfd *));
-static long remove_useless_symbols
- PARAMS ((asymbol **, long));
-static int compare_symbols
- PARAMS ((const PTR, const PTR));
-static int compare_relocs
- PARAMS ((const PTR, const PTR));
-static void dump_stabs
- PARAMS ((bfd *));
-static bfd_boolean read_section_stabs
- PARAMS ((bfd *, const char *, const char *));
-static void print_section_stabs
- PARAMS ((bfd *, const char *, const char *));
-static void dump_section_stabs
- PARAMS ((bfd *, char *, char *));
\f
static void
-usage (stream, status)
- FILE *stream;
- int status;
+usage (FILE *stream, int status)
{
fprintf (stream, _("Usage: %s <option(s)> <file(s)>\n"), program_name);
fprintf (stream, _(" Display information from object <file(s)>.\n"));
-S, --source Intermix source code with disassembly\n\
-s, --full-contents Display the full contents of all sections requested\n\
-g, --debugging Display debug information in object file\n\
+ -e, --debugging-tags Display debug information using ctags style\n\
-G, --stabs Display (in raw form) any STABS info in the file\n\
+ -W, --dwarf Display DWARF info in the file\n\
-t, --syms Display the contents of the symbol table(s)\n\
-T, --dynamic-syms Display the contents of the dynamic symbol table\n\
-r, --reloc Display the relocation entries in the file\n\
-R, --dynamic-reloc Display the dynamic relocation entries in the file\n\
+ @<file> Read options from <file>\n\
-v, --version Display this program's version number\n\
-i, --info List object formats and architectures supported\n\
-H, --help Display this information\n\
-EB --endian=big Assume big endian format when disassembling\n\
-EL --endian=little Assume little endian format when disassembling\n\
--file-start-context Include context from start of file (with -S)\n\
+ -I, --include=DIR Add DIR to search list for source files\n\
-l, --line-numbers Include line numbers and filenames in output\n\
-C, --demangle[=STYLE] Decode mangled/processed symbol names\n\
The STYLE, if specified, can be `auto', `gnu',\n\
--prefix-addresses Print complete address alongside disassembly\n\
--[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
--adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
+ --special-syms Include special symbols in symbol dumps\n\
\n"));
list_supported_targets (program_name, stream);
list_supported_architectures (program_name, stream);
disassembler_usage (stream);
}
- if (status == 0)
+ if (REPORT_BUGS_TO[0] && status == 0)
fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO);
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)
-#define OPTION_ADJUST_VMA (OPTION_STOP_ADDRESS + 1)
+enum option_values
+ {
+ OPTION_ENDIAN=150,
+ OPTION_START_ADDRESS,
+ OPTION_STOP_ADDRESS,
+ OPTION_ADJUST_VMA
+ };
static struct option long_options[]=
{
{"architecture", required_argument, NULL, 'm'},
{"archive-headers", no_argument, NULL, 'a'},
{"debugging", no_argument, NULL, 'g'},
+ {"debugging-tags", no_argument, NULL, 'e'},
{"demangle", optional_argument, NULL, 'C'},
{"disassemble", no_argument, NULL, 'd'},
{"disassemble-all", no_argument, NULL, 'D'},
{"section-headers", no_argument, NULL, 'h'},
{"show-raw-insn", no_argument, &show_raw_insn, 1},
{"source", no_argument, NULL, 'S'},
+ {"special-syms", no_argument, &dump_special_syms, 1},
+ {"include", required_argument, NULL, 'I'},
+ {"dwarf", no_argument, NULL, 'W'},
{"stabs", no_argument, NULL, 'G'},
{"start-address", required_argument, NULL, OPTION_START_ADDRESS},
{"stop-address", required_argument, NULL, OPTION_STOP_ADDRESS},
};
\f
static void
-nonfatal (msg)
- const char *msg;
+nonfatal (const char *msg)
{
bfd_nonfatal (msg);
exit_status = 1;
}
\f
static void
-dump_section_header (abfd, section, ignored)
- bfd *abfd ATTRIBUTE_UNUSED;
- asection *section;
- PTR ignored ATTRIBUTE_UNUSED;
+dump_section_header (bfd *abfd, asection *section,
+ void *ignored ATTRIBUTE_UNUSED)
{
char *comma = "";
unsigned int opb = bfd_octets_per_byte (abfd);
+ /* Ignore linker created section. See elfNN_ia64_object_p in
+ bfd/elfxx-ia64.c. */
+ if (section->flags & SEC_LINKER_CREATED)
+ return;
+
printf ("%3d %-13s %08lx ", section->index,
bfd_get_section_name (abfd, section),
(unsigned long) bfd_section_size (abfd, section) / opb);
PF (SEC_NEVER_LOAD, "NEVER_LOAD");
PF (SEC_EXCLUDE, "EXCLUDE");
PF (SEC_SORT_ENTRIES, "SORT_ENTRIES");
- PF (SEC_BLOCK, "BLOCK");
- PF (SEC_CLINK, "CLINK");
+ if (bfd_get_arch (abfd) == bfd_arch_tic54x)
+ {
+ PF (SEC_TIC54X_BLOCK, "BLOCK");
+ PF (SEC_TIC54X_CLINK, "CLINK");
+ }
PF (SEC_SMALL_DATA, "SMALL_DATA");
- PF (SEC_SHARED, "SHARED");
- PF (SEC_ARCH_BIT_0, "ARCH_BIT_0");
+ if (bfd_get_flavour (abfd) == bfd_target_coff_flavour)
+ PF (SEC_COFF_SHARED, "SHARED");
PF (SEC_THREAD_LOCAL, "THREAD_LOCAL");
+ PF (SEC_GROUP, "GROUP");
if ((section->flags & SEC_LINK_ONCE) != 0)
{
const char *ls;
+ struct coff_comdat_info *comdat;
switch (section->flags & SEC_LINK_DUPLICATES)
{
}
printf ("%s%s", comma, ls);
- if (section->comdat != NULL)
- printf (" (COMDAT %s %ld)", section->comdat->name,
- section->comdat->symbol);
+ comdat = bfd_coff_get_comdat_section (abfd, section);
+ if (comdat != NULL)
+ printf (" (COMDAT %s %ld)", comdat->name, comdat->symbol);
comma = ", ";
}
}
static void
-dump_headers (abfd)
- bfd *abfd;
+dump_headers (bfd *abfd)
{
printf (_("Sections:\n"));
printf (_(" Pg"));
printf ("\n");
- bfd_map_over_sections (abfd, dump_section_header, (PTR) NULL);
+ bfd_map_over_sections (abfd, dump_section_header, NULL);
}
\f
static asymbol **
-slurp_symtab (abfd)
- bfd *abfd;
+slurp_symtab (bfd *abfd)
{
- asymbol **sy = (asymbol **) NULL;
+ asymbol **sy = NULL;
long storage;
if (!(bfd_get_file_flags (abfd) & HAS_SYMS))
if (storage < 0)
bfd_fatal (bfd_get_filename (abfd));
if (storage)
- sy = (asymbol **) xmalloc (storage);
+ sy = xmalloc (storage);
symcount = bfd_canonicalize_symtab (abfd, sy);
if (symcount < 0)
/* Read in the dynamic symbols. */
static asymbol **
-slurp_dynamic_symtab (abfd)
- bfd *abfd;
+slurp_dynamic_symtab (bfd *abfd)
{
- asymbol **sy = (asymbol **) NULL;
+ asymbol **sy = NULL;
long storage;
storage = bfd_get_dynamic_symtab_upper_bound (abfd);
bfd_fatal (bfd_get_filename (abfd));
}
if (storage)
- sy = (asymbol **) xmalloc (storage);
+ sy = xmalloc (storage);
dynsymcount = bfd_canonicalize_dynamic_symtab (abfd, sy);
if (dynsymcount < 0)
Return the number of useful symbols. */
static long
-remove_useless_symbols (symbols, count)
- asymbol **symbols;
- long count;
+remove_useless_symbols (asymbol **symbols, long count)
{
- register asymbol **in_ptr = symbols, **out_ptr = symbols;
+ asymbol **in_ptr = symbols, **out_ptr = symbols;
while (--count >= 0)
{
if (sym->name == NULL || sym->name[0] == '\0')
continue;
- if (sym->flags & (BSF_DEBUGGING))
+ if (sym->flags & (BSF_DEBUGGING | BSF_SECTION_SYM))
continue;
if (bfd_is_und_section (sym->section)
|| bfd_is_com_section (sym->section))
/* Sort symbols into value order. */
static int
-compare_symbols (ap, bp)
- const PTR ap;
- const PTR bp;
+compare_symbols (const void *ap, const void *bp)
{
- const asymbol *a = *(const asymbol **)ap;
- const asymbol *b = *(const asymbol **)bp;
- const char *an, *bn;
- size_t anl, bnl;
- bfd_boolean af, bf;
- flagword aflags, bflags;
+ const asymbol *a = * (const asymbol **) ap;
+ const asymbol *b = * (const asymbol **) bp;
+ const char *an;
+ const char *bn;
+ size_t anl;
+ size_t bnl;
+ bfd_boolean af;
+ bfd_boolean bf;
+ flagword aflags;
+ flagword bflags;
if (bfd_asymbol_value (a) > bfd_asymbol_value (b))
return 1;
/* Sort relocs into address order. */
static int
-compare_relocs (ap, bp)
- const PTR ap;
- const PTR bp;
+compare_relocs (const void *ap, const void *bp)
{
- const arelent *a = *(const arelent **)ap;
- const arelent *b = *(const arelent **)bp;
+ const arelent *a = * (const arelent **) ap;
+ const arelent *b = * (const arelent **) bp;
if (a->address > b->address)
return 1;
return 0;
}
-/* Print VMA to STREAM. If SKIP_ZEROES is TRUE, omit leading zeroes. */
+/* Print an address (VMA) to the output stream in INFO.
+ If SKIP_ZEROES is TRUE, omit leading zeroes. */
static void
-objdump_print_value (vma, info, skip_zeroes)
- bfd_vma vma;
- struct disassemble_info *info;
- bfd_boolean skip_zeroes;
+objdump_print_value (bfd_vma vma, struct disassemble_info *info,
+ bfd_boolean skip_zeroes)
{
char buf[30];
char *p;
- struct objdump_disasm_info *aux
- = (struct objdump_disasm_info *) info->application_data;
+ struct objdump_disasm_info *aux;
+ aux = (struct objdump_disasm_info *) info->application_data;
bfd_sprintf_vma (aux->abfd, buf, vma);
if (! skip_zeroes)
p = buf;
/* Print the name of a symbol. */
static void
-objdump_print_symname (abfd, info, sym)
- bfd *abfd;
- struct disassemble_info *info;
- asymbol *sym;
+objdump_print_symname (bfd *abfd, struct disassemble_info *info,
+ asymbol *sym)
{
char *alloc;
const char *name;
free (alloc);
}
-/* 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. */
+/* Locate a symbol given a bfd and a section (from INFO->application_data),
+ and a VMA. If INFO->application_data->require_sec is TRUE, then always
+ require the symbol to be in the section. 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;
- bfd_boolean require_sec;
- long *place;
+find_symbol_for_address (bfd_vma vma,
+ struct disassemble_info *info,
+ long *place)
{
/* @@ Would it speed things up to cache the last two symbols returned,
and maybe their address ranges? For many processors, only one memory
long min = 0;
long max = sorted_symcount;
long thisplace;
- unsigned int opb = bfd_octets_per_byte (abfd);
+ struct objdump_disasm_info *aux;
+ bfd *abfd;
+ asection *sec;
+ unsigned int opb;
if (sorted_symcount < 1)
return NULL;
+ aux = (struct objdump_disasm_info *) info->application_data;
+ abfd = aux->abfd;
+ sec = aux->sec;
+ opb = bfd_octets_per_byte (abfd);
+
/* Perform a binary search looking for the closest symbol to the
required value. We are searching the range (min, max]. */
while (min + 1 < max)
== bfd_asymbol_value (sorted_syms[thisplace - 1])))
--thisplace;
- /* If the file is relocateable, and the symbol could be from this
+ /* If the file is relocatable, 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.
no way to tell what's desired without looking at the relocation
table. */
if (sorted_syms[thisplace]->section != sec
- && (require_sec
+ && (aux->require_sec
|| ((abfd->flags & HAS_RELOC) != 0
&& vma >= bfd_get_section_vma (abfd, sec)
&& vma < (bfd_get_section_vma (abfd, sec)
}
if (sorted_syms[thisplace]->section != sec
- && (require_sec
+ && (aux->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;
- }
+ /* There is no suitable symbol. */
+ return NULL;
+ }
+
+ /* Give the target a chance to reject the symbol. */
+ while (! info->symbol_is_valid (sorted_syms [thisplace], info))
+ {
+ ++ thisplace;
+ if (thisplace >= sorted_symcount
+ || bfd_asymbol_value (sorted_syms [thisplace]) > vma)
+ return NULL;
}
if (place != NULL)
return sorted_syms[thisplace];
}
-/* Print an address to INFO symbolically. */
+/* Print an address and the offset to the nearest symbol. */
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;
- bfd_boolean skip_zeroes;
+objdump_print_addr_with_sym (bfd *abfd, asection *sec, asymbol *sym,
+ bfd_vma vma, struct disassemble_info *info,
+ bfd_boolean skip_zeroes)
{
objdump_print_value (vma, info, skip_zeroes);
}
}
-/* Print VMA to INFO, symbolically if possible. If SKIP_ZEROES is
- TRUE, don't output leading zeroes. */
+/* Print an address (VMA), 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;
- bfd_boolean skip_zeroes;
+objdump_print_addr (bfd_vma vma,
+ struct disassemble_info *info,
+ bfd_boolean skip_zeroes)
{
struct objdump_disasm_info *aux;
- asymbol *sym;
+ asymbol *sym = NULL; /* Initialize to avoid compiler warning. */
+ bfd_boolean skip_find = FALSE;
if (sorted_symcount < 1)
{
}
aux = (struct objdump_disasm_info *) info->application_data;
- sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
- (long *) NULL);
+
+ if (aux->reloc != NULL
+ && aux->reloc->sym_ptr_ptr != NULL
+ && * aux->reloc->sym_ptr_ptr != NULL)
+ {
+ sym = * aux->reloc->sym_ptr_ptr;
+
+ /* Adjust the vma to the reloc. */
+ vma += bfd_asymbol_value (sym);
+
+ if (bfd_is_und_section (bfd_get_section (sym)))
+ skip_find = TRUE;
+ }
+
+ if (!skip_find)
+ sym = find_symbol_for_address (vma, info, NULL);
+
objdump_print_addr_with_sym (aux->abfd, aux->sec, sym, vma, info,
skip_zeroes);
}
routine. */
static void
-objdump_print_address (vma, info)
- bfd_vma vma;
- struct disassemble_info *info;
+objdump_print_address (bfd_vma vma, struct disassemble_info *info)
{
objdump_print_addr (vma, info, ! prefix_addresses);
}
-/* Determine of the given address has a symbol associated with it. */
+/* Determine if the given address has a symbol associated with it. */
static int
-objdump_symbol_at_address (vma, info)
- bfd_vma vma;
- struct disassemble_info * info;
+objdump_symbol_at_address (bfd_vma vma, struct disassemble_info * info)
{
- struct objdump_disasm_info * aux;
asymbol * sym;
- /* No symbols - do not bother checking. */
- if (sorted_symcount < 1)
- return 0;
-
- aux = (struct objdump_disasm_info *) info->application_data;
- sym = find_symbol_for_address (aux->abfd, aux->sec, vma, aux->require_sec,
- (long *) NULL);
+ sym = find_symbol_for_address (vma, info, NULL);
return (sym != NULL && (bfd_asymbol_value (sym) == vma));
}
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
+ disassembly 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;
+ const char *filename;
+ const char *modname;
unsigned int line;
FILE *f;
};
#define SHOW_PRECEDING_CONTEXT_LINES (5)
+/* Tries to open MODNAME, and if successful adds a node to print_files
+ linked list and returns that node. Returns NULL on failure. */
+
+static struct print_file_list *
+try_print_file_open (const char *origname, const char *modname)
+{
+ struct print_file_list *p;
+ FILE *f;
+
+ f = fopen (modname, "r");
+ if (f == NULL)
+ return NULL;
+
+ if (print_files != NULL && print_files->f != NULL)
+ {
+ fclose (print_files->f);
+ print_files->f = NULL;
+ }
+
+ p = xmalloc (sizeof (struct print_file_list));
+ p->filename = origname;
+ p->modname = modname;
+ p->line = 0;
+ p->f = f;
+ p->next = print_files;
+ print_files = p;
+ return p;
+}
+
+/* If the the source file, as described in the symtab, is not found
+ try to locate it in one of the paths specified with -I
+ If found, add location to print_files linked list. */
+
+static struct print_file_list *
+update_source_path (const char *filename)
+{
+ struct print_file_list *p;
+ const char *fname;
+ int i;
+
+ if (filename == NULL)
+ return NULL;
+
+ p = try_print_file_open (filename, filename);
+ if (p != NULL)
+ return p;
+
+ if (include_path_count == 0)
+ return NULL;
+
+ /* Get the name of the file. */
+ fname = strrchr (filename, '/');
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ {
+ /* We could have a mixed forward/back slash case. */
+ char *backslash = strrchr (filename, '\\');
+ if (fname == NULL || (backslash != NULL && backslash > fname))
+ fname = backslash;
+ if (fname == NULL && filename[0] != '\0' && filename[1] == ':')
+ fname = filename + 1;
+ }
+#endif
+ if (fname == NULL)
+ fname = filename;
+ else
+ ++fname;
+
+ /* If file exists under a new path, we need to add it to the list
+ so that show_line knows about it. */
+ for (i = 0; i < include_path_count; i++)
+ {
+ char *modname = concat (include_paths[i], "/", fname, (const char *) 0);
+
+ p = try_print_file_open (filename, modname);
+ if (p)
+ return p;
+
+ free (modname);
+ }
+
+ return NULL;
+}
+
/* 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, bfd_boolean));
-
static void
-skip_to_line (p, line, show)
- struct print_file_list *p;
- unsigned int line;
- bfd_boolean show;
+skip_to_line (struct print_file_list *p, unsigned int line,
+ bfd_boolean show)
{
while (p->line < line)
{
}
}
-/* Show the line number, or the source line, in a dissassembly
+/* Show the line number, or the source line, in a disassembly
listing. */
static void
-show_line (abfd, section, addr_offset)
- bfd *abfd;
- asection *section;
- bfd_vma addr_offset;
+show_line (bfd *abfd, asection *section, bfd_vma addr_offset)
{
const char *filename;
const char *functionname;
if (p->f == NULL)
{
- p->f = fopen (p->filename, "r");
+ p->f = fopen (p->modname, "r");
p->line = 0;
}
if (p->f != NULL)
}
else
{
- FILE *f;
+ p = update_source_path (filename);
- f = fopen (filename, "r");
- if (f != NULL)
+ if (p != NULL)
{
int l;
- 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;
-
if (file_start_context)
l = 0;
else
typedef struct
{
char *buffer;
- size_t size;
- char *current;
+ size_t pos;
+ size_t alloc;
} SFILE;
-/* sprintf to a "stream" */
+/* sprintf to a "stream". */
-static int
-objdump_sprintf VPARAMS ((SFILE *f, const char *format, ...))
+static int ATTRIBUTE_PRINTF_2
+objdump_sprintf (SFILE *f, const char *format, ...)
{
- char *buf;
size_t n;
+ va_list args;
- VA_OPEN (args, format);
- VA_FIXEDARG (args, SFILE *, f);
- VA_FIXEDARG (args, const char *, format);
-
- vasprintf (&buf, format, args);
-
- if (buf == NULL)
+ while (1)
{
+ size_t space = f->alloc - f->pos;
+
+ va_start (args, format);
+ n = vsnprintf (f->buffer + f->pos, space, format, args);
va_end (args);
- fatal (_("Out of virtual memory"));
- }
- n = strlen (buf);
+ if (space > n)
+ break;
+
+ f->alloc = (f->alloc + n) * 2;
+ f->buffer = xrealloc (f->buffer, f->alloc);
+ }
+ f->pos += n;
+
+ return n;
+}
- while ((size_t) ((f->buffer + f->size) - f->current) < n + 1)
- {
- size_t curroff;
+/* Returns TRUE if the specified section should be dumped. */
- curroff = f->current - f->buffer;
- f->size *= 2;
- f->buffer = xrealloc (f->buffer, f->size);
- f->current = f->buffer + curroff;
- }
+static bfd_boolean
+process_section_p (asection * section)
+{
+ size_t i;
- memcpy (f->current, buf, n);
- f->current += n;
- f->current[0] = '\0';
+ if (only == NULL)
+ return TRUE;
- free (buf);
+ for (i = 0; i < only_used; i++)
+ if (strcmp (only [i], section->name) == 0)
+ return TRUE;
- VA_CLOSE (args);
- return n;
+ return FALSE;
}
+
/* The number of zeroes we want to see before we start skipping them.
The number is arbitrarily chosen. */
-#ifndef SKIP_ZEROES
-#define SKIP_ZEROES (8)
-#endif
+#define DEFAULT_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
attempt to avoid disassembling zeroes inserted by section
alignment. */
-#ifndef SKIP_ZEROES_AT_END
-#define SKIP_ZEROES_AT_END (3)
-#endif
+#define DEFAULT_SKIP_ZEROES_AT_END 3
/* Disassemble some data in memory between given values. */
static void
-disassemble_bytes (info, disassemble_fn, insns, data,
- start_offset, stop_offset, relppp,
- relppend)
- struct disassemble_info *info;
- disassembler_ftype disassemble_fn;
- bfd_boolean insns;
- bfd_byte *data;
- bfd_vma start_offset;
- bfd_vma stop_offset;
- arelent ***relppp;
- arelent **relppend;
+disassemble_bytes (struct disassemble_info * info,
+ disassembler_ftype disassemble_fn,
+ bfd_boolean insns,
+ bfd_byte * data,
+ bfd_vma start_offset,
+ bfd_vma stop_offset,
+ bfd_vma rel_offset,
+ arelent *** relppp,
+ arelent ** relppend)
{
struct objdump_disasm_info *aux;
asection *section;
bfd_boolean done_dot;
int skip_addr_chars;
bfd_vma addr_offset;
- int opb = info->octets_per_byte;
+ unsigned int opb = info->octets_per_byte;
+ unsigned int skip_zeroes = info->skip_zeroes;
+ unsigned int skip_zeroes_at_end = info->skip_zeroes_at_end;
+ int octets = opb;
+ SFILE sfile;
aux = (struct objdump_disasm_info *) info->application_data;
section = aux->sec;
+ sfile.alloc = 120;
+ sfile.buffer = xmalloc (sfile.alloc);
+ sfile.pos = 0;
+
if (insns)
octets_per_line = 4;
else
while (addr_offset < stop_offset)
{
bfd_vma z;
- int octets = 0;
bfd_boolean need_nl = FALSE;
+ int previous_octets;
+
+ /* Remember the length of the previous instruction. */
+ previous_octets = octets;
+ octets = 0;
/* If we see more than SKIP_ZEROES octets of zeroes, we just
- print `...'. */
+ print `...'. */
for (z = addr_offset * opb; z < stop_offset * opb; z++)
if (data[z] != 0)
break;
if (! disassemble_zeroes
&& (info->insn_info_valid == 0
|| info->branch_delay_insns == 0)
- && (z - addr_offset * opb >= SKIP_ZEROES
+ && (z - addr_offset * opb >= skip_zeroes
|| (z == stop_offset * opb &&
- z - addr_offset * opb < SKIP_ZEROES_AT_END)))
+ z - addr_offset * opb < skip_zeroes_at_end)))
{
printf ("\t...\n");
/* If there are more nonzero octets 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. */
+ 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_offset * opb)
z = addr_offset * opb + ((z - addr_offset * opb) &~ 3);
else
{
char buf[50];
- SFILE sfile;
int bpc = 0;
int pb = 0;
done_dot = FALSE;
if (with_line_numbers || with_source_code)
- /* The line number tables will refer to unadjusted
- section VMAs, so we must undo any VMA modifications
- when calling show_line. */
- show_line (aux->abfd, section, addr_offset - adjust_section_vma);
+ show_line (aux->abfd, section, addr_offset);
if (! prefix_addresses)
{
if (insns)
{
- sfile.size = 120;
- sfile.buffer = xmalloc (sfile.size);
- sfile.current = sfile.buffer;
+ sfile.pos = 0;
info->fprintf_func = (fprintf_ftype) objdump_sprintf;
- info->stream = (FILE *) &sfile;
+ info->stream = &sfile;
info->bytes_per_line = 0;
info->bytes_per_chunk = 0;
+ info->flags = 0;
-#ifdef DISASSEMBLER_NEEDS_RELOCS
- /* FIXME: This is wrong. It tests the number of octets
- in the last instruction, not the current one. */
- if (*relppp < relppend
- && (**relppp)->address >= addr_offset
- && (**relppp)->address <= addr_offset + octets / opb)
- info->flags = INSN_HAS_RELOC;
- else
-#endif
- info->flags = 0;
+ if (info->disassembler_needs_relocs
+ && *relppp < relppend)
+ {
+ bfd_signed_vma distance_to_rel;
+
+ distance_to_rel = (**relppp)->address
+ - (rel_offset + addr_offset);
+
+ /* Check to see if the current reloc is associated with
+ the instruction that we are about to disassemble. */
+ if (distance_to_rel == 0
+ /* FIXME: This is wrong. We are trying to catch
+ relocs that are addressed part way through the
+ current instruction, as might happen with a packed
+ VLIW instruction. Unfortunately we do not know the
+ length of the current instruction since we have not
+ disassembled it yet. Instead we take a guess based
+ upon the length of the previous instruction. The
+ proper solution is to have a new target-specific
+ disassembler function which just returns the length
+ of an instruction at a given address without trying
+ to display its disassembly. */
+ || (distance_to_rel > 0
+ && distance_to_rel < (bfd_signed_vma) (previous_octets/ opb)))
+ {
+ info->flags = INSN_HAS_RELOC;
+ aux->reloc = **relppp;
+ }
+ else
+ aux->reloc = NULL;
+ }
octets = (*disassemble_fn) (section->vma + addr_offset, info);
info->fprintf_func = (fprintf_ftype) fprintf;
octets_per_line = info->bytes_per_line;
if (octets < 0)
{
- if (sfile.current != sfile.buffer)
+ if (sfile.pos)
printf ("%s\n", sfile.buffer);
- free (sfile.buffer);
break;
}
}
bfd_vma j;
/* If ! prefix_addresses and ! wide_output, we print
- octets_per_line octets per line. */
+ octets_per_line octets per line. */
pb = octets;
if (pb > octets_per_line && ! prefix_addresses && ! wide_output)
pb = octets_per_line;
for (j = addr_offset * opb; j < addr_offset * opb + pb; j += bpc)
{
int k;
+
if (bpc > 1 && info->display_endian == BFD_ENDIAN_LITTLE)
{
for (k = bpc - 1; k >= 0; k--)
if (! insns)
printf ("%s", buf);
- else
- {
- printf ("%s", sfile.buffer);
- free (sfile.buffer);
- }
+ else if (sfile.pos)
+ printf ("%s", sfile.buffer);
if (prefix_addresses
? show_raw_insn > 0
need_nl = TRUE;
}
- if ((section->flags & SEC_RELOC) != 0
-#ifndef DISASSEMBLER_NEEDS_RELOCS
- && dump_reloc_info
-#endif
- )
+ while ((*relppp) < relppend
+ && (**relppp)->address < rel_offset + addr_offset + octets / opb)
{
- while ((*relppp) < relppend
- && ((**relppp)->address >= (bfd_vma) addr_offset
- && (**relppp)->address < (bfd_vma) addr_offset + octets / opb))
-#ifdef DISASSEMBLER_NEEDS_RELOCS
- if (! dump_reloc_info)
- ++(*relppp);
- else
-#endif
+ if (dump_reloc_info || dump_dynamic_reloc_info)
{
arelent *q;
else
printf ("\t\t\t");
- objdump_print_value (section->vma + q->address, info, TRUE);
+ objdump_print_value (section->vma - rel_offset + q->address,
+ info, TRUE);
- printf (": %s\t", q->howto->name);
+ if (q->howto == NULL)
+ printf (": *unknown*\t");
+ else if (q->howto->name)
+ printf (": %s\t", q->howto->name);
+ else
+ printf (": %d\t", q->howto->type);
if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL)
printf ("*unknown*");
printf ("\n");
need_nl = FALSE;
- ++(*relppp);
}
+ ++(*relppp);
}
if (need_nl)
addr_offset += octets / opb;
}
+
+ free (sfile.buffer);
+}
+
+static void
+disassemble_section (bfd *abfd, asection *section, void *info)
+{
+ struct disassemble_info * pinfo = (struct disassemble_info *) info;
+ struct objdump_disasm_info * paux;
+ unsigned int opb = pinfo->octets_per_byte;
+ bfd_byte * data = NULL;
+ bfd_size_type datasize = 0;
+ arelent ** rel_pp = NULL;
+ arelent ** rel_ppstart = NULL;
+ arelent ** rel_ppend;
+ unsigned long stop_offset;
+ asymbol * sym = NULL;
+ long place = 0;
+ long rel_count;
+ bfd_vma rel_offset;
+ unsigned long addr_offset;
+
+ /* Sections that do not contain machine
+ code are not normally disassembled. */
+ if (! disassemble_all
+ && only == NULL
+ && ((section->flags & (SEC_CODE | SEC_HAS_CONTENTS))
+ != (SEC_CODE | SEC_HAS_CONTENTS)))
+ return;
+
+ if (! process_section_p (section))
+ return;
+
+ datasize = bfd_get_section_size (section);
+ if (datasize == 0)
+ return;
+
+ /* Decide which set of relocs to use. Load them if necessary. */
+ paux = (struct objdump_disasm_info *) pinfo->application_data;
+ if (paux->dynrelbuf)
+ {
+ rel_pp = paux->dynrelbuf;
+ rel_count = paux->dynrelcount;
+ /* Dynamic reloc addresses are absolute, non-dynamic are section
+ relative. REL_OFFSET specifies the reloc address corresponding
+ to the start of this section. */
+ rel_offset = section->vma;
+ }
+ else
+ {
+ rel_count = 0;
+ rel_pp = NULL;
+ rel_offset = 0;
+
+ if ((section->flags & SEC_RELOC) != 0
+ && (dump_reloc_info || pinfo->disassembler_needs_relocs))
+ {
+ long relsize;
+
+ relsize = bfd_get_reloc_upper_bound (abfd, section);
+ if (relsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ if (relsize > 0)
+ {
+ rel_ppstart = rel_pp = xmalloc (relsize);
+ rel_count = bfd_canonicalize_reloc (abfd, section, rel_pp, syms);
+ if (rel_count < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ /* Sort the relocs by address. */
+ qsort (rel_pp, rel_count, sizeof (arelent *), compare_relocs);
+ }
+ }
+
+ }
+ rel_ppend = rel_pp + rel_count;
+
+ data = xmalloc (datasize);
+
+ bfd_get_section_contents (abfd, section, data, 0, datasize);
+
+ paux->sec = section;
+ pinfo->buffer = data;
+ pinfo->buffer_vma = section->vma;
+ pinfo->buffer_length = datasize;
+ pinfo->section = section;
+
+ if (start_address == (bfd_vma) -1
+ || start_address < pinfo->buffer_vma)
+ addr_offset = 0;
+ else
+ addr_offset = start_address - pinfo->buffer_vma;
+
+ if (stop_address == (bfd_vma) -1)
+ stop_offset = datasize / opb;
+ else
+ {
+ if (stop_address < pinfo->buffer_vma)
+ stop_offset = 0;
+ else
+ stop_offset = stop_address - pinfo->buffer_vma;
+ if (stop_offset > pinfo->buffer_length / opb)
+ stop_offset = pinfo->buffer_length / opb;
+ }
+
+ /* Skip over the relocs belonging to addresses below the
+ start address. */
+ while (rel_pp < rel_ppend
+ && (*rel_pp)->address < rel_offset + addr_offset)
+ ++rel_pp;
+
+ printf (_("Disassembly of section %s:\n"), section->name);
+
+ /* Find the nearest symbol forwards from our current position. */
+ paux->require_sec = TRUE;
+ sym = find_symbol_for_address (section->vma + addr_offset, info, &place);
+ paux->require_sec = FALSE;
+
+ /* Disassemble a block of instructions up to the address associated with
+ the symbol we have just found. Then print the symbol and find the
+ next symbol on. Repeat until we have disassembled the entire section
+ or we have reached the end of the address range we are interested in. */
+ while (addr_offset < stop_offset)
+ {
+ bfd_vma addr;
+ asymbol *nextsym;
+ unsigned long nextstop_offset;
+ bfd_boolean insns;
+
+ addr = section->vma + addr_offset;
+
+ if (sym != NULL && bfd_asymbol_value (sym) <= addr)
+ {
+ int x;
+
+ for (x = place;
+ (x < sorted_symcount
+ && (bfd_asymbol_value (sorted_syms[x]) <= addr));
+ ++x)
+ continue;
+
+ pinfo->symbols = sorted_syms + place;
+ pinfo->num_symbols = x - place;
+ pinfo->symtab_pos = place;
+ }
+ else
+ {
+ pinfo->symbols = NULL;
+ pinfo->num_symbols = 0;
+ pinfo->symtab_pos = -1;
+ }
+
+ if (! prefix_addresses)
+ {
+ pinfo->fprintf_func (pinfo->stream, "\n");
+ objdump_print_addr_with_sym (abfd, section, sym, addr,
+ pinfo, FALSE);
+ pinfo->fprintf_func (pinfo->stream, ":\n");
+ }
+
+ if (sym != NULL && bfd_asymbol_value (sym) > addr)
+ nextsym = sym;
+ else if (sym == NULL)
+ nextsym = NULL;
+ else
+ {
+#define is_valid_next_sym(SYM) \
+ ((SYM)->section == section \
+ && (bfd_asymbol_value (SYM) > bfd_asymbol_value (sym)) \
+ && pinfo->symbol_is_valid (SYM, pinfo))
+
+ /* Search forward for the next appropriate symbol in
+ SECTION. Note that all the symbols are sorted
+ together into one big array, and that some sections
+ may have overlapping addresses. */
+ while (place < sorted_symcount
+ && ! is_valid_next_sym (sorted_syms [place]))
+ ++place;
+
+ if (place >= sorted_symcount)
+ nextsym = NULL;
+ else
+ nextsym = sorted_syms[place];
+ }
+
+ if (sym != NULL && bfd_asymbol_value (sym) > addr)
+ nextstop_offset = bfd_asymbol_value (sym) - section->vma;
+ else if (nextsym == NULL)
+ nextstop_offset = stop_offset;
+ else
+ nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
+
+ if (nextstop_offset > stop_offset)
+ nextstop_offset = stop_offset;
+
+ /* 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
+ || bfd_asymbol_value (sym) > addr
+ || ((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;
+
+ disassemble_bytes (pinfo, paux->disassemble_fn, insns, data,
+ addr_offset, nextstop_offset,
+ rel_offset, &rel_pp, rel_ppend);
+
+ addr_offset = nextstop_offset;
+ sym = nextsym;
+ }
+
+ free (data);
+
+ if (rel_ppstart != NULL)
+ free (rel_ppstart);
}
/* Disassemble the contents of an object file. */
static void
-disassemble_data (abfd)
- bfd *abfd;
+disassemble_data (bfd *abfd)
{
- unsigned long addr_offset;
- disassembler_ftype disassemble_fn;
struct disassemble_info disasm_info;
struct objdump_disasm_info aux;
- asection *section;
- unsigned int opb;
+ long i;
print_files = NULL;
prev_functionname = NULL;
/* 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 = symcount ? symcount : dynsymcount;
+ sorted_syms = xmalloc ((sorted_symcount + synthcount) * sizeof (asymbol *));
+ memcpy (sorted_syms, symcount ? syms : dynsyms,
+ sorted_symcount * sizeof (asymbol *));
- sorted_symcount = remove_useless_symbols (sorted_syms, symcount);
+ sorted_symcount = remove_useless_symbols (sorted_syms, sorted_symcount);
+
+ for (i = 0; i < synthcount; ++i)
+ {
+ sorted_syms[sorted_symcount] = synthsyms + i;
+ ++sorted_symcount;
+ }
/* Sort the symbols into section and symbol order. */
qsort (sorted_syms, sorted_symcount, sizeof (asymbol *), compare_symbols);
- INIT_DISASSEMBLE_INFO (disasm_info, stdout, fprintf);
+ init_disassemble_info (&disasm_info, stdout, (fprintf_ftype) fprintf);
- disasm_info.application_data = (PTR) &aux;
+ disasm_info.application_data = (void *) &aux;
aux.abfd = abfd;
aux.require_sec = FALSE;
+ aux.dynrelbuf = NULL;
+ aux.dynrelcount = 0;
+ aux.reloc = NULL;
+
disasm_info.print_address_func = objdump_print_address;
disasm_info.symbol_at_address_func = objdump_symbol_at_address;
- if (machine != (char *) NULL)
+ if (machine != NULL)
{
const bfd_arch_info_type *info = bfd_scan_arch (machine);
{
struct bfd_target *xvec;
- xvec = (struct bfd_target *) xmalloc (sizeof (struct bfd_target));
+ xvec = xmalloc (sizeof (struct bfd_target));
memcpy (xvec, abfd->xvec, sizeof (struct bfd_target));
xvec->byteorder = endian;
abfd->xvec = xvec;
}
- disassemble_fn = disassembler (abfd);
- if (!disassemble_fn)
+ /* Use libopcodes to locate a suitable disassembler. */
+ aux.disassemble_fn = disassembler (abfd);
+ if (!aux.disassemble_fn)
{
non_fatal (_("Can't disassemble for architecture %s\n"),
bfd_printable_arch_mach (bfd_get_arch (abfd), 0));
return;
}
- opb = bfd_octets_per_byte (abfd);
-
disasm_info.flavour = bfd_get_flavour (abfd);
disasm_info.arch = bfd_get_arch (abfd);
disasm_info.mach = bfd_get_mach (abfd);
disasm_info.disassembler_options = disassembler_options;
- disasm_info.octets_per_byte = opb;
+ disasm_info.octets_per_byte = bfd_octets_per_byte (abfd);
+ disasm_info.skip_zeroes = DEFAULT_SKIP_ZEROES;
+ disasm_info.skip_zeroes_at_end = DEFAULT_SKIP_ZEROES_AT_END;
+ disasm_info.disassembler_needs_relocs = FALSE;
if (bfd_big_endian (abfd))
disasm_info.display_endian = disasm_info.endian = BFD_ENDIAN_BIG;
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;
- unsigned long stop_offset;
- asymbol *sym = NULL;
- long place = 0;
-
- 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;
+ /* Allow the target to customize the info structure. */
+ disassemble_init_for_target (& disasm_info);
- if ((section->flags & SEC_RELOC) != 0
-#ifndef DISASSEMBLER_NEEDS_RELOCS
- && dump_reloc_info
-#endif
- )
- {
- long relsize;
+ /* Pre-load the dynamic relocs if we are going
+ to be dumping them along with the disassembly. */
+ if (dump_dynamic_reloc_info)
+ {
+ long relsize = bfd_get_dynamic_reloc_upper_bound (abfd);
+
+ if (relsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
- relsize = bfd_get_reloc_upper_bound (abfd, section);
- if (relsize < 0)
+ if (relsize > 0)
+ {
+ aux.dynrelbuf = xmalloc (relsize);
+ aux.dynrelcount = bfd_canonicalize_dynamic_reloc (abfd,
+ aux.dynrelbuf,
+ dynsyms);
+ if (aux.dynrelcount < 0)
bfd_fatal (bfd_get_filename (abfd));
- if (relsize > 0)
- {
- long relcount;
+ /* Sort the relocs by address. */
+ qsort (aux.dynrelbuf, aux.dynrelcount, sizeof (arelent *),
+ compare_relocs);
+ }
+ }
+ disasm_info.symtab = sorted_syms;
+ disasm_info.symtab_size = sorted_symcount;
- relbuf = (arelent **) xmalloc (relsize);
- relcount = bfd_canonicalize_reloc (abfd, section, relbuf, syms);
- if (relcount < 0)
- bfd_fatal (bfd_get_filename (abfd));
+ bfd_map_over_sections (abfd, disassemble_section, & disasm_info);
- /* Sort the relocs by address. */
- qsort (relbuf, relcount, sizeof (arelent *), compare_relocs);
+ if (aux.dynrelbuf != NULL)
+ free (aux.dynrelbuf);
+ free (sorted_syms);
+}
+\f
+int
+load_debug_section (enum dwarf_section_display_enum debug, void *file)
+{
+ struct dwarf_section *section = &debug_displays [debug].section;
+ bfd *abfd = file;
+ asection *sec;
+ bfd_boolean ret;
- relpp = relbuf;
- relppend = relpp + relcount;
+ /* If it is already loaded, do nothing. */
+ if (section->start != NULL)
+ return 1;
- /* Skip over the relocs belonging to addresses below the
- start address. */
- if (start_address != (bfd_vma) -1)
- while (relpp < relppend
- && (*relpp)->address < start_address)
- ++relpp;
- }
- }
+ /* Locate the debug section. */
+ sec = bfd_get_section_by_name (abfd, section->name);
+ if (sec == NULL)
+ return 0;
- printf (_("Disassembly of section %s:\n"), section->name);
+ section->address = bfd_get_section_vma (abfd, sec);
+ section->size = bfd_get_section_size (sec);
+ section->start = xmalloc (section->size);
- datasize = bfd_get_section_size_before_reloc (section);
- if (datasize == 0)
- continue;
+ if (is_relocatable && debug_displays [debug].relocate)
+ ret = bfd_simple_get_relocated_section_contents (abfd,
+ sec,
+ section->start,
+ syms) != NULL;
+ else
+ ret = bfd_get_section_contents (abfd, sec, section->start, 0,
+ section->size);
- data = (bfd_byte *) xmalloc ((size_t) datasize);
+ if (!ret)
+ {
+ free_debug_section (debug);
+ printf (_("\nCan't get contents for section '%s'.\n"),
+ section->name);
+ }
- bfd_get_section_contents (abfd, section, data, 0, datasize);
+ return ret;
+}
- aux.sec = section;
- disasm_info.buffer = data;
- disasm_info.buffer_vma = section->vma;
- disasm_info.buffer_length = datasize;
- disasm_info.section = section;
+void
+free_debug_section (enum dwarf_section_display_enum debug)
+{
+ struct dwarf_section *section = &debug_displays [debug].section;
- if (start_address == (bfd_vma) -1
- || start_address < disasm_info.buffer_vma)
- addr_offset = 0;
- else
- addr_offset = start_address - disasm_info.buffer_vma;
+ if (section->start == NULL)
+ return;
- if (stop_address == (bfd_vma) -1)
- stop_offset = datasize / opb;
- else
- {
- if (stop_address < disasm_info.buffer_vma)
- stop_offset = 0;
- else
- stop_offset = stop_address - disasm_info.buffer_vma;
- if (stop_offset > disasm_info.buffer_length / opb)
- stop_offset = disasm_info.buffer_length / opb;
- }
+ free ((char *) section->start);
+ section->start = NULL;
+ section->address = 0;
+ section->size = 0;
+}
- sym = find_symbol_for_address (abfd, section, section->vma + addr_offset,
- TRUE, &place);
+static void
+dump_dwarf_section (bfd *abfd, asection *section,
+ void *arg ATTRIBUTE_UNUSED)
+{
+ const char *name = bfd_get_section_name (abfd, section);
+ const char *match;
+ enum dwarf_section_display_enum i;
- while (addr_offset < stop_offset)
- {
- asymbol *nextsym;
- unsigned long nextstop_offset;
- bfd_boolean insns;
+ if (CONST_STRNEQ (name, ".gnu.linkonce.wi."))
+ match = ".debug_info";
+ else
+ match = name;
- if (sym != NULL && bfd_asymbol_value (sym) <= section->vma + addr_offset)
- {
- int x;
+ for (i = 0; i < max; i++)
+ if (strcmp (debug_displays[i].section.name, match) == 0)
+ {
+ if (!debug_displays[i].eh_frame)
+ {
+ struct dwarf_section *sec = &debug_displays [i].section;
+
+ if (load_debug_section (i, abfd))
+ {
+ debug_displays[i].display (sec, abfd);
+
+ if (i != info && i != abbrev)
+ free_debug_section (i);
+ }
+ }
+ break;
+ }
+}
- for (x = place;
- (x < sorted_symcount
- && bfd_asymbol_value (sorted_syms[x]) <= section->vma + addr_offset);
- ++x)
- continue;
+static const char *mach_o_dwarf_sections [] = {
+ "LC_SEGMENT.__DWARFA.__debug_abbrev", /* .debug_abbrev */
+ "LC_SEGMENT.__DWARFA.__debug_aranges", /* .debug_aranges */
+ "LC_SEGMENT.__DWARFA.__debug_frame", /* .debug_frame */
+ "LC_SEGMENT.__DWARFA.__debug_info", /* .debug_info */
+ "LC_SEGMENT.__DWARFA.__debug_line", /* .debug_line */
+ "LC_SEGMENT.__DWARFA.__debug_pubnames", /* .debug_pubnames */
+ ".eh_frame", /* .eh_frame */
+ "LC_SEGMENT.__DWARFA.__debug_macinfo", /* .debug_macinfo */
+ "LC_SEGMENT.__DWARFA.__debug_str", /* .debug_str */
+ "LC_SEGMENT.__DWARFA.__debug_loc", /* .debug_loc */
+ "LC_SEGMENT.__DWARFA.__debug_pubtypes", /* .debug_pubtypes */
+ "LC_SEGMENT.__DWARFA.__debug_ranges", /* .debug_ranges */
+ "LC_SEGMENT.__DWARFA.__debug_static_func", /* .debug_static_func */
+ "LC_SEGMENT.__DWARFA.__debug_static_vars", /* .debug_static_vars */
+ "LC_SEGMENT.__DWARFA.__debug_types", /* .debug_types */
+ "LC_SEGMENT.__DWARFA.__debug_weaknames" /* .debug_weaknames */
+};
- disasm_info.symbols = & sorted_syms[place];
- disasm_info.num_symbols = x - place;
- }
- else
- disasm_info.symbols = NULL;
+static const char *generic_dwarf_sections [max];
- if (! prefix_addresses)
- {
- (* disasm_info.fprintf_func) (disasm_info.stream, "\n");
- objdump_print_addr_with_sym (abfd, section, sym,
- section->vma + addr_offset,
- &disasm_info,
- FALSE);
- (* disasm_info.fprintf_func) (disasm_info.stream, ":\n");
- }
+static void
+check_mach_o_dwarf (bfd *abfd)
+{
+ static enum bfd_flavour old_flavour = bfd_target_unknown_flavour;
+ enum bfd_flavour current_flavour = bfd_get_flavour (abfd);
+ enum dwarf_section_display_enum i;
- if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
- nextsym = sym;
- else if (sym == NULL)
- nextsym = NULL;
- else
- {
- /* Search forward for the next appropriate symbol in
- SECTION. Note that all the symbols are sorted
- together into one big array, and that some sections
- may have overlapping addresses. */
- 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];
- }
+ if (generic_dwarf_sections [0] == NULL)
+ for (i = 0; i < max; i++)
+ generic_dwarf_sections [i] = debug_displays[i].section.name;
- if (sym != NULL && bfd_asymbol_value (sym) > section->vma + addr_offset)
- {
- nextstop_offset = bfd_asymbol_value (sym) - section->vma;
- if (nextstop_offset > stop_offset)
- nextstop_offset = stop_offset;
- }
- else if (nextsym == NULL)
- nextstop_offset = stop_offset;
- else
- {
- nextstop_offset = bfd_asymbol_value (nextsym) - section->vma;
- if (nextstop_offset > stop_offset)
- nextstop_offset = stop_offset;
- }
+ if (old_flavour != current_flavour)
+ {
+ if (current_flavour == bfd_target_mach_o_flavour)
+ for (i = 0; i < max; i++)
+ debug_displays[i].section.name = mach_o_dwarf_sections [i];
+ else if (old_flavour == bfd_target_mach_o_flavour)
+ for (i = 0; i < max; i++)
+ debug_displays[i].section.name = generic_dwarf_sections [i];
+
+ old_flavour = current_flavour;
+ }
+}
- /* 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
- || bfd_asymbol_value (sym) > section->vma + addr_offset
- || ((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;
+/* Dump the dwarf debugging information. */
- disassemble_bytes (&disasm_info, disassemble_fn, insns, data,
- addr_offset, nextstop_offset, &relpp, relppend);
+static void
+dump_dwarf (bfd *abfd)
+{
+ is_relocatable = ((abfd->flags & (HAS_RELOC | EXEC_P | DYNAMIC))
+ == HAS_RELOC);
- addr_offset = nextstop_offset;
- sym = nextsym;
- }
+ /* FIXME: bfd_get_arch_size may return -1. We assume that 64bit
+ targets will return 64. */
+ eh_addr_size = bfd_get_arch_size (abfd) == 64 ? 8 : 4;
- free (data);
+ if (bfd_big_endian (abfd))
+ byte_get = byte_get_big_endian;
+ else if (bfd_little_endian (abfd))
+ byte_get = byte_get_little_endian;
+ else
+ abort ();
- if (relbuf != NULL)
- free (relbuf);
- }
- free (sorted_syms);
-}
-\f
-/* Dump the stabs sections from an object file that has a section that
- uses Sun stabs encoding. */
+ check_mach_o_dwarf (abfd);
-static void
-dump_stabs (abfd)
- bfd *abfd;
-{
- 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, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
-}
+ bfd_map_over_sections (abfd, dump_dwarf_section, NULL);
-/* Read ABFD's stabs section STABSECT_NAME into `stabs'
- and string table section STRSECT_NAME into `strtab'.
- If the section exists and was read, allocate the space and return TRUE.
- Otherwise return FALSE. */
+ free_debug_memory ();
+}
+\f
+/* Read ABFD's stabs section STABSECT_NAME, and return a pointer to
+ it. Return NULL on failure. */
-static bfd_boolean
-read_section_stabs (abfd, stabsect_name, strsect_name)
- bfd *abfd;
- const char *stabsect_name;
- const char *strsect_name;
+static char *
+read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr)
{
- asection *stabsect, *stabstrsect;
-
- stabsect = bfd_get_section_by_name (abfd, stabsect_name);
- if (0 == stabsect)
- {
- printf (_("No %s section present\n\n"), stabsect_name);
- return FALSE;
- }
+ asection *stabsect;
+ bfd_size_type size;
+ char *contents;
- stabstrsect = bfd_get_section_by_name (abfd, strsect_name);
- if (0 == stabstrsect)
+ stabsect = bfd_get_section_by_name (abfd, sect_name);
+ if (stabsect == NULL)
{
- non_fatal (_("%s has no %s section"),
- bfd_get_filename (abfd), strsect_name);
- exit_status = 1;
+ printf (_("No %s section present\n\n"), sect_name);
return FALSE;
}
- stab_size = bfd_section_size (abfd, stabsect);
- stabstr_size = bfd_section_size (abfd, stabstrsect);
+ size = bfd_section_size (abfd, stabsect);
+ contents = xmalloc (size);
- stabs = (bfd_byte *) xmalloc (stab_size);
- strtab = (char *) xmalloc (stabstr_size);
-
- if (! bfd_get_section_contents (abfd, stabsect, (PTR) stabs, 0, stab_size))
+ if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size))
{
non_fatal (_("Reading %s section of %s failed: %s"),
- stabsect_name, bfd_get_filename (abfd),
+ sect_name, bfd_get_filename (abfd),
bfd_errmsg (bfd_get_error ()));
- free (stabs);
- free (strtab);
+ free (contents);
exit_status = 1;
- return FALSE;
+ return NULL;
}
- if (! bfd_get_section_contents (abfd, stabstrsect, (PTR) strtab, 0,
- stabstr_size))
- {
- non_fatal (_("Reading %s section of %s failed: %s\n"),
- strsect_name, bfd_get_filename (abfd),
- bfd_errmsg (bfd_get_error ()));
- free (stabs);
- free (strtab);
- exit_status = 1;
- return FALSE;
- }
+ *size_ptr = size;
- return TRUE;
+ return contents;
}
/* Stabs entries use a 12 byte format:
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 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'). */
static void
-print_section_stabs (abfd, stabsect_name, strsect_name)
- bfd *abfd;
- const char *stabsect_name;
- const char *strsect_name ATTRIBUTE_UNUSED;
+print_section_stabs (bfd *abfd,
+ const char *stabsect_name,
+ unsigned *string_offset_ptr)
{
int i;
- unsigned file_string_table_offset = 0, next_file_string_table_offset = 0;
+ unsigned file_string_table_offset = 0;
+ unsigned next_file_string_table_offset = *string_offset_ptr;
bfd_byte *stabp, *stabs_end;
stabp = stabs;
}
}
printf ("\n\n");
+ *string_offset_ptr = next_file_string_table_offset;
+}
+
+typedef struct
+{
+ const char * section_name;
+ const char * string_section_name;
+ unsigned string_offset;
}
+stab_section_names;
static void
-dump_section_stabs (abfd, stabsect_name, strsect_name)
- bfd *abfd;
- char *stabsect_name;
- char *strsect_name;
+find_stabs_section (bfd *abfd, asection *section, void *names)
{
- asection *s;
+ int len;
+ stab_section_names * sought = (stab_section_names *) names;
/* Check for section names for which stabsect_name is a prefix, to
- handle .stab0, etc. */
- for (s = abfd->sections;
- s != NULL;
- s = s->next)
+ handle .stab.N, etc. */
+ len = strlen (sought->section_name);
+
+ /* If the prefix matches, and the files section name ends with a
+ nul or a digit, then we match. I.e., we want either an exact
+ match or a section followed by a number. */
+ if (strncmp (sought->section_name, section->name, len) == 0
+ && (section->name[len] == 0
+ || (section->name[len] == '.' && ISDIGIT (section->name[len + 1]))))
{
- 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. I.e., we want either an exact
- match or a section followed by a number. */
- if (strncmp (stabsect_name, s->name, len) == 0
- && (s->name[len] == '\000'
- || ISDIGIT (s->name[len])))
+ if (strtab == NULL)
+ strtab = read_section_stabs (abfd, sought->string_section_name,
+ &stabstr_size);
+
+ if (strtab)
{
- if (read_section_stabs (abfd, s->name, strsect_name))
- {
- print_section_stabs (abfd, s->name, strsect_name);
- free (stabs);
- free (strtab);
- }
+ stabs = (bfd_byte *) read_section_stabs (abfd, section->name,
+ &stab_size);
+ if (stabs)
+ print_section_stabs (abfd, section->name, &sought->string_offset);
}
}
}
+static void
+dump_stabs_section (bfd *abfd, char *stabsect_name, char *strsect_name)
+{
+ stab_section_names s;
+
+ s.section_name = stabsect_name;
+ s.string_section_name = strsect_name;
+ s.string_offset = 0;
+
+ bfd_map_over_sections (abfd, find_stabs_section, & s);
+
+ free (strtab);
+ strtab = NULL;
+}
+
+/* Dump the any sections containing stabs debugging information. */
+
+static void
+dump_stabs (bfd *abfd)
+{
+ dump_stabs_section (abfd, ".stab", ".stabstr");
+ dump_stabs_section (abfd, ".stab.excl", ".stab.exclstr");
+ dump_stabs_section (abfd, ".stab.index", ".stab.indexstr");
+ dump_stabs_section (abfd, "$GDB_SYMBOLS$", "$GDB_STRINGS$");
+}
\f
static void
-dump_bfd_header (abfd)
- bfd *abfd;
+dump_bfd_header (bfd *abfd)
{
char *comma = "";
\f
static void
-dump_bfd_private_header (abfd)
-bfd *abfd;
+dump_bfd_private_header (bfd *abfd)
{
bfd_print_private_bfd_data (abfd, stdout);
}
-/* Dump selected contents of ABFD. */
+\f
+/* Display a section in hexadecimal format with associated characters.
+ Each line prefixed by the zero padded address. */
static void
-dump_bfd (abfd)
- bfd *abfd;
+dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED)
{
- /* If we are adjusting section VMA's, change them all now. Changing
- the BFD information is a hack. However, we must do it, or
- bfd_find_nearest_line will not do the right thing. */
- if (adjust_section_vma != 0)
- {
- asection *s;
-
- for (s = abfd->sections; s != NULL; s = s->next)
- {
- s->vma += adjust_section_vma;
- s->lma += adjust_section_vma;
- }
- }
-
- printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
- abfd->xvec->name);
- if (dump_ar_hdrs)
- 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);
+ bfd_byte *data = 0;
+ bfd_size_type datasize;
+ bfd_size_type addr_offset;
+ bfd_size_type start_offset;
+ bfd_size_type stop_offset;
+ unsigned int opb = bfd_octets_per_byte (abfd);
+ /* Bytes per line. */
+ const int onaline = 16;
+ char buf[64];
+ int count;
+ int width;
- if (dump_symtab || dump_reloc_info || disassemble || dump_debugging)
- syms = slurp_symtab (abfd);
- if (dump_dynamic_symtab || dump_dynamic_reloc_info)
- dynsyms = slurp_dynamic_symtab (abfd);
+ if ((section->flags & SEC_HAS_CONTENTS) == 0)
+ return;
- if (dump_symtab)
- dump_symbols (abfd, FALSE);
- if (dump_dynamic_symtab)
- dump_symbols (abfd, TRUE);
- if (dump_stab_section_info)
- dump_stabs (abfd);
- if (dump_reloc_info && ! disassemble)
- dump_relocs (abfd);
- if (dump_dynamic_reloc_info)
- dump_dynamic_relocs (abfd);
- if (dump_section_contents)
- dump_data (abfd);
- if (disassemble)
- disassemble_data (abfd);
- if (dump_debugging)
- {
- PTR dhandle;
+ if (! process_section_p (section))
+ return;
+
+ if ((datasize = bfd_section_size (abfd, section)) == 0)
+ return;
- dhandle = read_debugging_info (abfd, syms, symcount);
- if (dhandle != NULL)
- {
- if (! print_debugging_info (stdout, dhandle))
- {
- non_fatal (_("%s: printing debugging information failed"),
- bfd_get_filename (abfd));
- exit_status = 1;
- }
- }
- }
+ printf (_("Contents of section %s:\n"), section->name);
- if (syms)
- {
- free (syms);
- syms = NULL;
- }
+ data = xmalloc (datasize);
- if (dynsyms)
- {
- free (dynsyms);
- dynsyms = NULL;
- }
-}
+ bfd_get_section_contents (abfd, section, data, 0, datasize);
-static void
-display_bfd (abfd)
- bfd *abfd;
-{
- char **matching;
+ /* Compute the address range to display. */
+ if (start_address == (bfd_vma) -1
+ || start_address < section->vma)
+ start_offset = 0;
+ else
+ start_offset = start_address - section->vma;
- if (bfd_check_format_matches (abfd, bfd_object, &matching))
+ if (stop_address == (bfd_vma) -1)
+ stop_offset = datasize / opb;
+ else
{
- dump_bfd (abfd);
- return;
- }
+ if (stop_address < section->vma)
+ stop_offset = 0;
+ else
+ stop_offset = stop_address - section->vma;
- if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
- {
- nonfatal (bfd_get_filename (abfd));
- list_matching_formats (matching);
- free (matching);
- return;
+ if (stop_offset > datasize / opb)
+ stop_offset = datasize / opb;
}
- if (bfd_get_error () != bfd_error_file_not_recognized)
- {
- nonfatal (bfd_get_filename (abfd));
- return;
- }
+ width = 4;
- if (bfd_check_format_matches (abfd, bfd_core, &matching))
- {
- dump_bfd (abfd);
- return;
- }
+ bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
+ if (strlen (buf) >= sizeof (buf))
+ abort ();
- nonfatal (bfd_get_filename (abfd));
+ count = 0;
+ while (buf[count] == '0' && buf[count+1] != '\0')
+ count++;
+ count = strlen (buf) - count;
+ if (count > width)
+ width = count;
- if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
- {
- list_matching_formats (matching);
- free (matching);
- }
-}
+ bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
+ if (strlen (buf) >= sizeof (buf))
+ abort ();
-static void
-display_file (filename, target)
- char *filename;
- char *target;
-{
- bfd *file, *arfile = (bfd *) NULL;
+ count = 0;
+ while (buf[count] == '0' && buf[count+1] != '\0')
+ count++;
+ count = strlen (buf) - count;
+ if (count > width)
+ width = count;
- file = bfd_openr (filename, target);
- if (file == NULL)
+ for (addr_offset = start_offset;
+ addr_offset < stop_offset; addr_offset += onaline / opb)
{
- nonfatal (filename);
- return;
- }
+ bfd_size_type j;
- if (bfd_check_format (file, bfd_archive))
- {
- bfd *last_arfile = NULL;
+ bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
+ count = strlen (buf);
+ if ((size_t) count >= sizeof (buf))
+ abort ();
- printf (_("In archive %s:\n"), bfd_get_filename (file));
- for (;;)
+ putchar (' ');
+ while (count < width)
{
- bfd_set_error (bfd_error_no_error);
-
- arfile = bfd_openr_next_archived_file (file, arfile);
- if (arfile == NULL)
- {
- if (bfd_get_error () != bfd_error_no_more_archived_files)
- nonfatal (bfd_get_filename (file));
- break;
- }
-
- display_bfd (arfile);
+ putchar ('0');
+ count++;
+ }
+ fputs (buf + count - width, stdout);
+ putchar (' ');
- if (last_arfile != NULL)
- bfd_close (last_arfile);
- last_arfile = arfile;
+ for (j = addr_offset * opb;
+ j < addr_offset * opb + onaline; j++)
+ {
+ if (j < stop_offset * opb)
+ printf ("%02x", (unsigned) (data[j]));
+ else
+ printf (" ");
+ if ((j & 3) == 3)
+ printf (" ");
}
- if (last_arfile != NULL)
- bfd_close (last_arfile);
+ printf (" ");
+ for (j = addr_offset * opb;
+ j < addr_offset * opb + onaline; j++)
+ {
+ if (j >= stop_offset * opb)
+ printf (" ");
+ else
+ printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
+ }
+ putchar ('\n');
}
- else
- display_bfd (file);
-
- bfd_close (file);
+ free (data);
}
-\f
+
/* Actually display the various requested regions. */
static void
-dump_data (abfd)
- bfd *abfd;
+dump_data (bfd *abfd)
{
- asection *section;
- bfd_byte *data = 0;
- bfd_size_type datasize = 0;
- bfd_size_type addr_offset;
- bfd_size_type start_offset, stop_offset;
- unsigned int opb = bfd_octets_per_byte (abfd);
-
- for (section = abfd->sections; section != NULL; section =
- section->next)
- {
- int onaline = 16;
-
- if (only == (char *) NULL ||
- strcmp (only, section->name) == 0)
- {
- if (section->flags & SEC_HAS_CONTENTS)
- {
- char buf[64];
- int count, width;
-
- printf (_("Contents of section %s:\n"), section->name);
-
- if (bfd_section_size (abfd, section) == 0)
- continue;
- data = (bfd_byte *) xmalloc ((size_t) bfd_section_size (abfd, section));
- datasize = bfd_section_size (abfd, section);
-
-
- bfd_get_section_contents (abfd, section, (PTR) data, 0, bfd_section_size (abfd, section));
-
- if (start_address == (bfd_vma) -1
- || start_address < section->vma)
- start_offset = 0;
- else
- start_offset = start_address - section->vma;
- if (stop_address == (bfd_vma) -1)
- stop_offset = bfd_section_size (abfd, section) / opb;
- else
- {
- if (stop_address < section->vma)
- stop_offset = 0;
- else
- stop_offset = stop_address - section->vma;
- if (stop_offset > bfd_section_size (abfd, section) / opb)
- stop_offset = bfd_section_size (abfd, section) / opb;
- }
-
- width = 4;
-
- bfd_sprintf_vma (abfd, buf, start_offset + section->vma);
- if (strlen (buf) >= sizeof (buf))
- abort ();
- count = 0;
- while (buf[count] == '0' && buf[count+1] != '\0')
- count++;
- count = strlen (buf) - count;
- if (count > width)
- width = count;
-
- bfd_sprintf_vma (abfd, buf, stop_offset + section->vma - 1);
- if (strlen (buf) >= sizeof (buf))
- abort ();
- count = 0;
- while (buf[count] == '0' && buf[count+1] != '\0')
- count++;
- count = strlen (buf) - count;
- if (count > width)
- width = count;
-
- for (addr_offset = start_offset;
- addr_offset < stop_offset; addr_offset += onaline / opb)
- {
- bfd_size_type j;
-
- bfd_sprintf_vma (abfd, buf, (addr_offset + section->vma));
- count = strlen (buf);
- if (count >= sizeof (buf))
- abort ();
- putchar (' ');
- while (count < width)
- {
- putchar ('0');
- count++;
- }
- fputs (buf + count - width, stdout);
- putchar (' ');
-
- for (j = addr_offset * opb;
- j < addr_offset * opb + onaline; j++)
- {
- if (j < stop_offset * opb)
- printf ("%02x", (unsigned) (data[j]));
- else
- printf (" ");
- if ((j & 3) == 3)
- printf (" ");
- }
-
- printf (" ");
- for (j = addr_offset * opb;
- j < addr_offset * opb + onaline; j++)
- {
- if (j >= stop_offset * opb)
- printf (" ");
- else
- printf ("%c", ISPRINT (data[j]) ? data[j] : '.');
- }
- putchar ('\n');
- }
- free (data);
- }
- }
- }
+ bfd_map_over_sections (abfd, dump_section, NULL);
}
/* Should perhaps share code and display with nm? */
static void
-dump_symbols (abfd, dynamic)
- bfd *abfd ATTRIBUTE_UNUSED;
- bfd_boolean dynamic;
+dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
{
asymbol **current;
long max;
for (count = 0; count < max; count++)
{
- if (*current)
+ bfd *cur_bfd;
+
+ if (*current == NULL)
+ printf (_("no information for symbol number %ld\n"), count);
+
+ else if ((cur_bfd = bfd_asymbol_bfd (*current)) == NULL)
+ printf (_("could not determine the type of symbol number %ld\n"),
+ count);
+
+ else if (process_section_p ((* current)->section)
+ && (dump_special_syms
+ || !bfd_is_target_special_symbol (cur_bfd, *current)))
{
- bfd *cur_bfd = bfd_asymbol_bfd (*current);
+ const char *name = (*current)->name;
- if (cur_bfd != NULL)
+ if (do_demangle && name != NULL && *name != '\0')
{
- const char *name;
char *alloc;
- name = (*current)->name;
- alloc = NULL;
- if (do_demangle && name != NULL && *name != '\0')
- {
- /* If we want to demangle the name, we demangle it
- here, and temporarily clobber it while calling
- bfd_print_symbol. FIXME: This is a gross hack. */
- alloc = demangle (cur_bfd, name);
- (*current)->name = alloc;
- }
-
+ /* If we want to demangle the name, we demangle it
+ here, and temporarily clobber it while calling
+ bfd_print_symbol. FIXME: This is a gross hack. */
+ alloc = demangle (cur_bfd, name);
+ (*current)->name = alloc;
bfd_print_symbol (cur_bfd, stdout, *current,
bfd_print_symbol_all);
-
(*current)->name = name;
- if (alloc != NULL)
- free (alloc);
-
- printf ("\n");
+ free (alloc);
}
- }
- current++;
- }
- printf ("\n");
- printf ("\n");
-}
-
-static void
-dump_relocs (abfd)
- bfd *abfd;
-{
- arelent **relpp;
- long relcount;
- asection *a;
-
- for (a = abfd->sections; a != (asection *) NULL; a = a->next)
- {
- long relsize;
-
- if (bfd_is_abs_section (a))
- continue;
- if (bfd_is_und_section (a))
- continue;
- if (bfd_is_com_section (a))
- continue;
-
- if (only)
- {
- if (strcmp (only, a->name))
- continue;
- }
- else if ((a->flags & SEC_RELOC) == 0)
- continue;
-
- 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);
- relcount = bfd_canonicalize_reloc (abfd, a, relpp, syms);
-
- if (relcount < 0)
- bfd_fatal (bfd_get_filename (abfd));
- else if (relcount == 0)
- printf (" (none)\n\n");
else
- {
- printf ("\n");
- dump_reloc_set (abfd, a, relpp, relcount);
- printf ("\n\n");
- }
- free (relpp);
- }
- }
-}
-
-static void
-dump_dynamic_relocs (abfd)
- bfd *abfd;
-{
- long relsize;
- arelent **relpp;
- long relcount;
-
- 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
- {
- relpp = (arelent **) xmalloc (relsize);
- relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
-
- if (relcount < 0)
- bfd_fatal (bfd_get_filename (abfd));
- else if (relcount == 0)
- printf (" (none)\n\n");
- else
- {
+ bfd_print_symbol (cur_bfd, stdout, *current,
+ bfd_print_symbol_all);
printf ("\n");
- dump_reloc_set (abfd, (asection *) NULL, relpp, relcount);
- printf ("\n\n");
}
- free (relpp);
+
+ current++;
}
+ printf ("\n\n");
}
-
+\f
static void
-dump_reloc_set (abfd, sec, relpp, relcount)
- bfd *abfd;
- asection *sec;
- arelent **relpp;
- long relcount;
+dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount)
{
arelent **p;
char *last_filename, *last_functionname;
if (width == 0)
{
char buf[30];
+
bfd_sprintf_vma (abfd, buf, (bfd_vma) -1);
width = strlen (buf) - 7;
}
last_functionname = NULL;
last_line = 0;
- for (p = relpp; relcount && *p != (arelent *) NULL; p++, relcount--)
+ for (p = relpp; relcount && *p != NULL; p++, relcount--)
{
arelent *q = *p;
const char *filename, *functionname;
section_name = NULL;
}
+ bfd_printf_vma (abfd, q->address);
+ if (q->howto == NULL)
+ printf (" *unknown* ");
+ else if (q->howto->name)
+ printf (" %-16s ", q->howto->name);
+ else
+ printf (" %-16d ", q->howto->type);
if (sym_name)
- {
- bfd_printf_vma (abfd, q->address);
- if (q->howto->name)
- printf (" %-16s ", q->howto->name);
- else
- printf (" %-16d ", q->howto->type);
- objdump_print_symname (abfd, (struct disassemble_info *) NULL,
- *q->sym_ptr_ptr);
- }
+ objdump_print_symname (abfd, NULL, *q->sym_ptr_ptr);
else
{
- if (section_name == (const char *) NULL)
+ if (section_name == NULL)
section_name = "*unknown*";
- bfd_printf_vma (abfd, q->address);
- printf (" %-16s [%s]",
- q->howto->name,
- section_name);
+ printf ("[%s]", section_name);
}
if (q->addend)
printf ("\n");
}
}
-\f
-int main PARAMS ((int, char **));
+static void
+dump_relocs_in_section (bfd *abfd,
+ asection *section,
+ void *dummy ATTRIBUTE_UNUSED)
+{
+ arelent **relpp;
+ long relcount;
+ long relsize;
+
+ if ( bfd_is_abs_section (section)
+ || bfd_is_und_section (section)
+ || bfd_is_com_section (section)
+ || (! process_section_p (section))
+ || ((section->flags & SEC_RELOC) == 0))
+ return;
+
+ relsize = bfd_get_reloc_upper_bound (abfd, section);
+ if (relsize < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+
+ printf ("RELOCATION RECORDS FOR [%s]:", section->name);
+
+ if (relsize == 0)
+ {
+ printf (" (none)\n\n");
+ return;
+ }
+
+ relpp = xmalloc (relsize);
+ relcount = bfd_canonicalize_reloc (abfd, section, relpp, syms);
+
+ if (relcount < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+ else if (relcount == 0)
+ printf (" (none)\n\n");
+ else
+ {
+ printf ("\n");
+ dump_reloc_set (abfd, section, relpp, relcount);
+ printf ("\n\n");
+ }
+ free (relpp);
+}
+
+static void
+dump_relocs (bfd *abfd)
+{
+ bfd_map_over_sections (abfd, dump_relocs_in_section, NULL);
+}
+
+static void
+dump_dynamic_relocs (bfd *abfd)
+{
+ long relsize;
+ arelent **relpp;
+ long relcount;
+
+ 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
+ {
+ relpp = xmalloc (relsize);
+ relcount = bfd_canonicalize_dynamic_reloc (abfd, relpp, dynsyms);
+
+ if (relcount < 0)
+ bfd_fatal (bfd_get_filename (abfd));
+ else if (relcount == 0)
+ printf (" (none)\n\n");
+ else
+ {
+ printf ("\n");
+ dump_reloc_set (abfd, NULL, relpp, relcount);
+ printf ("\n\n");
+ }
+ free (relpp);
+ }
+}
+
+/* Creates a table of paths, to search for source files. */
+
+static void
+add_include_path (const char *path)
+{
+ if (path[0] == 0)
+ return;
+ include_path_count++;
+ include_paths = xrealloc (include_paths,
+ include_path_count * sizeof (*include_paths));
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ if (path[1] == ':' && path[2] == 0)
+ path = concat (path, ".", (const char *) 0);
+#endif
+ include_paths[include_path_count - 1] = path;
+}
+
+static void
+adjust_addresses (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *section,
+ void *arg)
+{
+ if ((section->flags & SEC_DEBUGGING) == 0)
+ {
+ bfd_boolean *has_reloc_p = (bfd_boolean *) arg;
+ section->vma += adjust_section_vma;
+ if (*has_reloc_p)
+ section->lma += adjust_section_vma;
+ }
+}
+
+/* Dump selected contents of ABFD. */
+
+static void
+dump_bfd (bfd *abfd)
+{
+ /* If we are adjusting section VMA's, change them all now. Changing
+ the BFD information is a hack. However, we must do it, or
+ bfd_find_nearest_line will not do the right thing. */
+ if (adjust_section_vma != 0)
+ {
+ bfd_boolean has_reloc = (abfd->flags & HAS_RELOC);
+ bfd_map_over_sections (abfd, adjust_addresses, &has_reloc);
+ }
+
+ if (! dump_debugging_tags)
+ printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd),
+ abfd->xvec->name);
+ if (dump_ar_hdrs)
+ print_arelt_descr (stdout, abfd, TRUE);
+ if (dump_file_header)
+ dump_bfd_header (abfd);
+ if (dump_private_headers)
+ dump_bfd_private_header (abfd);
+ if (! dump_debugging_tags)
+ putchar ('\n');
+ if (dump_section_headers)
+ dump_headers (abfd);
+
+ if (dump_symtab
+ || dump_reloc_info
+ || disassemble
+ || dump_debugging
+ || dump_dwarf_section_info)
+ syms = slurp_symtab (abfd);
+ if (dump_dynamic_symtab || dump_dynamic_reloc_info
+ || (disassemble && bfd_get_dynamic_symtab_upper_bound (abfd) > 0))
+ dynsyms = slurp_dynamic_symtab (abfd);
+ if (disassemble)
+ {
+ synthcount = bfd_get_synthetic_symtab (abfd, symcount, syms,
+ dynsymcount, dynsyms, &synthsyms);
+ if (synthcount < 0)
+ synthcount = 0;
+ }
+
+ if (dump_symtab)
+ dump_symbols (abfd, FALSE);
+ if (dump_dynamic_symtab)
+ dump_symbols (abfd, TRUE);
+ if (dump_dwarf_section_info)
+ dump_dwarf (abfd);
+ if (dump_stab_section_info)
+ dump_stabs (abfd);
+ if (dump_reloc_info && ! disassemble)
+ dump_relocs (abfd);
+ if (dump_dynamic_reloc_info && ! disassemble)
+ dump_dynamic_relocs (abfd);
+ if (dump_section_contents)
+ dump_data (abfd);
+ if (disassemble)
+ disassemble_data (abfd);
+
+ if (dump_debugging)
+ {
+ void *dhandle;
+
+ dhandle = read_debugging_info (abfd, syms, symcount);
+ if (dhandle != NULL)
+ {
+ if (! print_debugging_info (stdout, dhandle, abfd, syms, demangle,
+ dump_debugging_tags ? TRUE : FALSE))
+ {
+ non_fatal (_("%s: printing debugging information failed"),
+ bfd_get_filename (abfd));
+ exit_status = 1;
+ }
+ }
+ }
+
+ if (syms)
+ {
+ free (syms);
+ syms = NULL;
+ }
+
+ if (dynsyms)
+ {
+ free (dynsyms);
+ dynsyms = NULL;
+ }
+
+ if (synthsyms)
+ {
+ free (synthsyms);
+ synthsyms = NULL;
+ }
+
+ symcount = 0;
+ dynsymcount = 0;
+ synthcount = 0;
+}
+
+static void
+display_bfd (bfd *abfd)
+{
+ char **matching;
+
+ if (bfd_check_format_matches (abfd, bfd_object, &matching))
+ {
+ dump_bfd (abfd);
+ return;
+ }
+
+ if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
+ {
+ nonfatal (bfd_get_filename (abfd));
+ list_matching_formats (matching);
+ free (matching);
+ return;
+ }
+
+ if (bfd_get_error () != bfd_error_file_not_recognized)
+ {
+ nonfatal (bfd_get_filename (abfd));
+ return;
+ }
+
+ if (bfd_check_format_matches (abfd, bfd_core, &matching))
+ {
+ dump_bfd (abfd);
+ return;
+ }
+
+ nonfatal (bfd_get_filename (abfd));
+
+ if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
+ {
+ list_matching_formats (matching);
+ free (matching);
+ }
+}
+
+static void
+display_file (char *filename, char *target)
+{
+ bfd *file;
+ bfd *arfile = NULL;
+
+ if (get_file_size (filename) < 1)
+ {
+ exit_status = 1;
+ return;
+ }
+
+ file = bfd_openr (filename, target);
+ if (file == NULL)
+ {
+ nonfatal (filename);
+ return;
+ }
+
+ /* If the file is an archive, process all of its elements. */
+ if (bfd_check_format (file, bfd_archive))
+ {
+ bfd *last_arfile = NULL;
+
+ printf (_("In archive %s:\n"), bfd_get_filename (file));
+ for (;;)
+ {
+ bfd_set_error (bfd_error_no_error);
+
+ arfile = bfd_openr_next_archived_file (file, arfile);
+ if (arfile == NULL)
+ {
+ if (bfd_get_error () != bfd_error_no_more_archived_files)
+ nonfatal (bfd_get_filename (file));
+ break;
+ }
+
+ display_bfd (arfile);
+
+ if (last_arfile != NULL)
+ bfd_close (last_arfile);
+ last_arfile = arfile;
+ }
+
+ if (last_arfile != NULL)
+ bfd_close (last_arfile);
+ }
+ else
+ display_bfd (file);
+
+ bfd_close (file);
+}
+\f
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
int c;
char *target = default_target;
bfd_boolean seenflag = FALSE;
-#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
+#if defined (HAVE_SETLOCALE)
+#if defined (HAVE_LC_MESSAGES)
setlocale (LC_MESSAGES, "");
#endif
-#if defined (HAVE_SETLOCALE)
setlocale (LC_CTYPE, "");
#endif
+
bindtextdomain (PACKAGE, LOCALEDIR);
textdomain (PACKAGE);
START_PROGRESS (program_name, 0);
+ expandargv (&argc, &argv);
+
bfd_init ();
set_default_bfd_target ();
- while ((c = getopt_long (argc, argv, "pib:m:M:VvCdDlfaHhrRtTxsSj:wE:zgG",
+ while ((c = getopt_long (argc, argv, "pib:m:M:VvCdDlfaHhrRtTxsSI:j:wE:zgeGW",
long_options, (int *) 0))
!= EOF)
{
machine = optarg;
break;
case 'M':
- disassembler_options = optarg;
+ if (disassembler_options)
+ /* Ignore potential memory leak for now. */
+ disassembler_options = concat (disassembler_options, ",",
+ optarg, NULL);
+ else
+ disassembler_options = optarg;
break;
case 'j':
- only = optarg;
+ if (only_used == only_size)
+ {
+ only_size += 8;
+ only = xrealloc (only, only_size * sizeof (char *));
+ }
+ only [only_used++] = optarg;
break;
case 'l':
with_line_numbers = TRUE;
formats_info = TRUE;
seenflag = TRUE;
break;
+ case 'I':
+ add_include_path (optarg);
+ break;
case 'p':
dump_private_headers = TRUE;
seenflag = TRUE;
dump_debugging = 1;
seenflag = TRUE;
break;
+ case 'e':
+ dump_debugging = 1;
+ dump_debugging_tags = 1;
+ do_demangle = TRUE;
+ seenflag = TRUE;
+ break;
+ case 'W':
+ dump_dwarf_section_info = TRUE;
+ seenflag = TRUE;
+ do_debug_info = 1;
+ do_debug_abbrevs = 1;
+ do_debug_lines = 1;
+ do_debug_pubnames = 1;
+ do_debug_aranges = 1;
+ do_debug_ranges = 1;
+ do_debug_frames = 1;
+ do_debug_macinfo = 1;
+ do_debug_str = 1;
+ do_debug_loc = 1;
+ break;
case 'G':
dump_stab_section_info = TRUE;
seenflag = TRUE;