mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-27 14:00:30 +00:00
877a8638ba
PR binutils/17512 * addr2line.c (slurp_symtab): If the symcount is zero, free the symbol table pointer. * dwarf2.c (concat_filename): Check for an empty directory table. (scan_unit_for_symbols): Check for reading off the end of the unit. (parse_comp_unit): Check for a DW_AT_comp_dir attribute with a non-string form. * elf64-ppc.c (opd_entry_value): Fail if there are no relocs available.
511 lines
13 KiB
C
511 lines
13 KiB
C
/* addr2line.c -- convert addresses to line number and function name
|
||
Copyright (C) 1997-2015 Free Software Foundation, Inc.
|
||
Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de>
|
||
|
||
This file is part of GNU Binutils.
|
||
|
||
This program is free software; you can redistribute it and/or modify
|
||
it under the terms of the GNU General Public License as published by
|
||
the Free Software Foundation; either version 3, or (at your option)
|
||
any later version.
|
||
|
||
This program is distributed in the hope that it will be useful,
|
||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
GNU General Public License for more details.
|
||
|
||
You should have received a copy of the GNU General Public License
|
||
along with this program; if not, write to the Free Software
|
||
Foundation, 51 Franklin Street - Fifth Floor, Boston,
|
||
MA 02110-1301, USA. */
|
||
|
||
|
||
/* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de
|
||
|
||
Usage:
|
||
addr2line [options] addr addr ...
|
||
or
|
||
addr2line [options]
|
||
|
||
both forms write results to stdout, the second form reads addresses
|
||
to be converted from stdin. */
|
||
|
||
#include "sysdep.h"
|
||
#include "bfd.h"
|
||
#include "getopt.h"
|
||
#include "libiberty.h"
|
||
#include "demangle.h"
|
||
#include "bucomm.h"
|
||
#include "elf-bfd.h"
|
||
|
||
static bfd_boolean unwind_inlines; /* -i, unwind inlined functions. */
|
||
static bfd_boolean with_addresses; /* -a, show addresses. */
|
||
static bfd_boolean with_functions; /* -f, show function names. */
|
||
static bfd_boolean do_demangle; /* -C, demangle names. */
|
||
static bfd_boolean pretty_print; /* -p, print on one line. */
|
||
static bfd_boolean base_names; /* -s, strip directory names. */
|
||
|
||
static int naddr; /* Number of addresses to process. */
|
||
static char **addr; /* Hex addresses to process. */
|
||
|
||
static asymbol **syms; /* Symbol table. */
|
||
|
||
static struct option long_options[] =
|
||
{
|
||
{"addresses", no_argument, NULL, 'a'},
|
||
{"basenames", no_argument, NULL, 's'},
|
||
{"demangle", optional_argument, NULL, 'C'},
|
||
{"exe", required_argument, NULL, 'e'},
|
||
{"functions", no_argument, NULL, 'f'},
|
||
{"inlines", no_argument, NULL, 'i'},
|
||
{"pretty-print", no_argument, NULL, 'p'},
|
||
{"section", required_argument, NULL, 'j'},
|
||
{"target", required_argument, NULL, 'b'},
|
||
{"help", no_argument, NULL, 'H'},
|
||
{"version", no_argument, NULL, 'V'},
|
||
{0, no_argument, 0, 0}
|
||
};
|
||
|
||
static void usage (FILE *, int);
|
||
static void slurp_symtab (bfd *);
|
||
static void find_address_in_section (bfd *, asection *, void *);
|
||
static void find_offset_in_section (bfd *, asection *);
|
||
static void translate_addresses (bfd *, asection *);
|
||
|
||
/* Print a usage message to STREAM and exit with STATUS. */
|
||
|
||
static void
|
||
usage (FILE *stream, int status)
|
||
{
|
||
fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name);
|
||
fprintf (stream, _(" Convert addresses into line number/file name pairs.\n"));
|
||
fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n"));
|
||
fprintf (stream, _(" The options are:\n\
|
||
@<file> Read options from <file>\n\
|
||
-a --addresses Show addresses\n\
|
||
-b --target=<bfdname> Set the binary file format\n\
|
||
-e --exe=<executable> Set the input file name (default is a.out)\n\
|
||
-i --inlines Unwind inlined functions\n\
|
||
-j --section=<name> Read section-relative offsets instead of addresses\n\
|
||
-p --pretty-print Make the output easier to read for humans\n\
|
||
-s --basenames Strip directory names\n\
|
||
-f --functions Show function names\n\
|
||
-C --demangle[=style] Demangle function names\n\
|
||
-h --help Display this information\n\
|
||
-v --version Display the program's version\n\
|
||
\n"));
|
||
|
||
list_supported_targets (program_name, stream);
|
||
if (REPORT_BUGS_TO[0] && status == 0)
|
||
fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
|
||
exit (status);
|
||
}
|
||
|
||
/* Read in the symbol table. */
|
||
|
||
static void
|
||
slurp_symtab (bfd *abfd)
|
||
{
|
||
long storage;
|
||
long symcount;
|
||
bfd_boolean dynamic = FALSE;
|
||
|
||
if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0)
|
||
return;
|
||
|
||
storage = bfd_get_symtab_upper_bound (abfd);
|
||
if (storage == 0)
|
||
{
|
||
storage = bfd_get_dynamic_symtab_upper_bound (abfd);
|
||
dynamic = TRUE;
|
||
}
|
||
if (storage < 0)
|
||
bfd_fatal (bfd_get_filename (abfd));
|
||
|
||
syms = (asymbol **) xmalloc (storage);
|
||
if (dynamic)
|
||
symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
|
||
else
|
||
symcount = bfd_canonicalize_symtab (abfd, syms);
|
||
if (symcount < 0)
|
||
bfd_fatal (bfd_get_filename (abfd));
|
||
|
||
/* If there are no symbols left after canonicalization and
|
||
we have not tried the dynamic symbols then give them a go. */
|
||
if (symcount == 0
|
||
&& ! dynamic
|
||
&& (storage = bfd_get_dynamic_symtab_upper_bound (abfd)) > 0)
|
||
{
|
||
free (syms);
|
||
syms = xmalloc (storage);
|
||
symcount = bfd_canonicalize_dynamic_symtab (abfd, syms);
|
||
}
|
||
|
||
/* PR 17512: file: 2a1d3b5b.
|
||
Do not pretend that we have some symbols when we don't. */
|
||
if (symcount <= 0)
|
||
{
|
||
free (syms);
|
||
syms = NULL;
|
||
}
|
||
}
|
||
|
||
/* These global variables are used to pass information between
|
||
translate_addresses and find_address_in_section. */
|
||
|
||
static bfd_vma pc;
|
||
static const char *filename;
|
||
static const char *functionname;
|
||
static unsigned int line;
|
||
static unsigned int discriminator;
|
||
static bfd_boolean found;
|
||
|
||
/* Look for an address in a section. This is called via
|
||
bfd_map_over_sections. */
|
||
|
||
static void
|
||
find_address_in_section (bfd *abfd, asection *section,
|
||
void *data ATTRIBUTE_UNUSED)
|
||
{
|
||
bfd_vma vma;
|
||
bfd_size_type size;
|
||
|
||
if (found)
|
||
return;
|
||
|
||
if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
|
||
return;
|
||
|
||
vma = bfd_get_section_vma (abfd, section);
|
||
if (pc < vma)
|
||
return;
|
||
|
||
size = bfd_get_section_size (section);
|
||
if (pc >= vma + size)
|
||
return;
|
||
|
||
found = bfd_find_nearest_line_discriminator (abfd, section, syms, pc - vma,
|
||
&filename, &functionname,
|
||
&line, &discriminator);
|
||
}
|
||
|
||
/* Look for an offset in a section. This is directly called. */
|
||
|
||
static void
|
||
find_offset_in_section (bfd *abfd, asection *section)
|
||
{
|
||
bfd_size_type size;
|
||
|
||
if (found)
|
||
return;
|
||
|
||
if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
|
||
return;
|
||
|
||
size = bfd_get_section_size (section);
|
||
if (pc >= size)
|
||
return;
|
||
|
||
found = bfd_find_nearest_line_discriminator (abfd, section, syms, pc,
|
||
&filename, &functionname,
|
||
&line, &discriminator);
|
||
}
|
||
|
||
/* Read hexadecimal addresses from stdin, translate into
|
||
file_name:line_number and optionally function name. */
|
||
|
||
static void
|
||
translate_addresses (bfd *abfd, asection *section)
|
||
{
|
||
int read_stdin = (naddr == 0);
|
||
|
||
for (;;)
|
||
{
|
||
if (read_stdin)
|
||
{
|
||
char addr_hex[100];
|
||
|
||
if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL)
|
||
break;
|
||
pc = bfd_scan_vma (addr_hex, NULL, 16);
|
||
}
|
||
else
|
||
{
|
||
if (naddr <= 0)
|
||
break;
|
||
--naddr;
|
||
pc = bfd_scan_vma (*addr++, NULL, 16);
|
||
}
|
||
|
||
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
|
||
{
|
||
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
||
bfd_vma sign = (bfd_vma) 1 << (bed->s->arch_size - 1);
|
||
|
||
pc &= (sign << 1) - 1;
|
||
if (bed->sign_extend_vma)
|
||
pc = (pc ^ sign) - sign;
|
||
}
|
||
|
||
if (with_addresses)
|
||
{
|
||
printf ("0x");
|
||
bfd_printf_vma (abfd, pc);
|
||
|
||
if (pretty_print)
|
||
printf (": ");
|
||
else
|
||
printf ("\n");
|
||
}
|
||
|
||
found = FALSE;
|
||
if (section)
|
||
find_offset_in_section (abfd, section);
|
||
else
|
||
bfd_map_over_sections (abfd, find_address_in_section, NULL);
|
||
|
||
if (! found)
|
||
{
|
||
if (with_functions)
|
||
{
|
||
if (pretty_print)
|
||
printf ("?? ");
|
||
else
|
||
printf ("??\n");
|
||
}
|
||
printf ("??:0\n");
|
||
}
|
||
else
|
||
{
|
||
while (1)
|
||
{
|
||
if (with_functions)
|
||
{
|
||
const char *name;
|
||
char *alloc = NULL;
|
||
|
||
name = functionname;
|
||
if (name == NULL || *name == '\0')
|
||
name = "??";
|
||
else if (do_demangle)
|
||
{
|
||
alloc = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS);
|
||
if (alloc != NULL)
|
||
name = alloc;
|
||
}
|
||
|
||
printf ("%s", name);
|
||
if (pretty_print)
|
||
/* Note for translators: This printf is used to join the
|
||
function name just printed above to the line number/
|
||
file name pair that is about to be printed below. Eg:
|
||
|
||
foo at 123:bar.c */
|
||
printf (_(" at "));
|
||
else
|
||
printf ("\n");
|
||
|
||
if (alloc != NULL)
|
||
free (alloc);
|
||
}
|
||
|
||
if (base_names && filename != NULL)
|
||
{
|
||
char *h;
|
||
|
||
h = strrchr (filename, '/');
|
||
if (h != NULL)
|
||
filename = h + 1;
|
||
}
|
||
|
||
printf ("%s:", filename ? filename : "??");
|
||
if (line != 0)
|
||
{
|
||
if (discriminator != 0)
|
||
printf ("%u (discriminator %u)\n", line, discriminator);
|
||
else
|
||
printf ("%u\n", line);
|
||
}
|
||
else
|
||
printf ("?\n");
|
||
if (!unwind_inlines)
|
||
found = FALSE;
|
||
else
|
||
found = bfd_find_inliner_info (abfd, &filename, &functionname,
|
||
&line);
|
||
if (! found)
|
||
break;
|
||
if (pretty_print)
|
||
/* Note for translators: This printf is used to join the
|
||
line number/file name pair that has just been printed with
|
||
the line number/file name pair that is going to be printed
|
||
by the next iteration of the while loop. Eg:
|
||
|
||
123:bar.c (inlined by) 456:main.c */
|
||
printf (_(" (inlined by) "));
|
||
}
|
||
}
|
||
|
||
/* fflush() is essential for using this command as a server
|
||
child process that reads addresses from a pipe and responds
|
||
with line number information, processing one address at a
|
||
time. */
|
||
fflush (stdout);
|
||
}
|
||
}
|
||
|
||
/* Process a file. Returns an exit value for main(). */
|
||
|
||
static int
|
||
process_file (const char *file_name, const char *section_name,
|
||
const char *target)
|
||
{
|
||
bfd *abfd;
|
||
asection *section;
|
||
char **matching;
|
||
|
||
if (get_file_size (file_name) < 1)
|
||
return 1;
|
||
|
||
abfd = bfd_openr (file_name, target);
|
||
if (abfd == NULL)
|
||
bfd_fatal (file_name);
|
||
|
||
/* Decompress sections. */
|
||
abfd->flags |= BFD_DECOMPRESS;
|
||
|
||
if (bfd_check_format (abfd, bfd_archive))
|
||
fatal (_("%s: cannot get addresses from archive"), file_name);
|
||
|
||
if (! bfd_check_format_matches (abfd, bfd_object, &matching))
|
||
{
|
||
bfd_nonfatal (bfd_get_filename (abfd));
|
||
if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
|
||
{
|
||
list_matching_formats (matching);
|
||
free (matching);
|
||
}
|
||
xexit (1);
|
||
}
|
||
|
||
if (section_name != NULL)
|
||
{
|
||
section = bfd_get_section_by_name (abfd, section_name);
|
||
if (section == NULL)
|
||
fatal (_("%s: cannot find section %s"), file_name, section_name);
|
||
}
|
||
else
|
||
section = NULL;
|
||
|
||
slurp_symtab (abfd);
|
||
|
||
translate_addresses (abfd, section);
|
||
|
||
if (syms != NULL)
|
||
{
|
||
free (syms);
|
||
syms = NULL;
|
||
}
|
||
|
||
bfd_close (abfd);
|
||
|
||
return 0;
|
||
}
|
||
|
||
int
|
||
main (int argc, char **argv)
|
||
{
|
||
const char *file_name;
|
||
const char *section_name;
|
||
char *target;
|
||
int c;
|
||
|
||
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
|
||
setlocale (LC_MESSAGES, "");
|
||
#endif
|
||
#if defined (HAVE_SETLOCALE)
|
||
setlocale (LC_CTYPE, "");
|
||
#endif
|
||
bindtextdomain (PACKAGE, LOCALEDIR);
|
||
textdomain (PACKAGE);
|
||
|
||
program_name = *argv;
|
||
xmalloc_set_program_name (program_name);
|
||
bfd_set_error_program_name (program_name);
|
||
|
||
expandargv (&argc, &argv);
|
||
|
||
bfd_init ();
|
||
set_default_bfd_target ();
|
||
|
||
file_name = NULL;
|
||
section_name = NULL;
|
||
target = NULL;
|
||
while ((c = getopt_long (argc, argv, "ab:Ce:sfHhij:pVv", long_options, (int *) 0))
|
||
!= EOF)
|
||
{
|
||
switch (c)
|
||
{
|
||
case 0:
|
||
break; /* We've been given a long option. */
|
||
case 'a':
|
||
with_addresses = TRUE;
|
||
break;
|
||
case 'b':
|
||
target = optarg;
|
||
break;
|
||
case 'C':
|
||
do_demangle = TRUE;
|
||
if (optarg != NULL)
|
||
{
|
||
enum demangling_styles style;
|
||
|
||
style = cplus_demangle_name_to_style (optarg);
|
||
if (style == unknown_demangling)
|
||
fatal (_("unknown demangling style `%s'"),
|
||
optarg);
|
||
|
||
cplus_demangle_set_style (style);
|
||
}
|
||
break;
|
||
case 'e':
|
||
file_name = optarg;
|
||
break;
|
||
case 's':
|
||
base_names = TRUE;
|
||
break;
|
||
case 'f':
|
||
with_functions = TRUE;
|
||
break;
|
||
case 'p':
|
||
pretty_print = TRUE;
|
||
break;
|
||
case 'v':
|
||
case 'V':
|
||
print_version ("addr2line");
|
||
break;
|
||
case 'h':
|
||
case 'H':
|
||
usage (stdout, 0);
|
||
break;
|
||
case 'i':
|
||
unwind_inlines = TRUE;
|
||
break;
|
||
case 'j':
|
||
section_name = optarg;
|
||
break;
|
||
default:
|
||
usage (stderr, 1);
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (file_name == NULL)
|
||
file_name = "a.out";
|
||
|
||
addr = argv + optind;
|
||
naddr = argc - optind;
|
||
|
||
return process_file (file_name, section_name, target);
|
||
}
|