| 1 | /* addr2line.c -- convert addresses to line number and function name
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| 2 | Copyright 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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| 3 | Contributed by Ulrich Lauther <Ulrich.Lauther@mchp.siemens.de>
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| 4 |
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| 5 | This file is part of GNU Binutils.
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| 6 |
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| 7 | This program is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 2, or (at your option)
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| 10 | any later version.
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| 11 |
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| 12 | This program is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with this program; if not, write to the Free Software
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| 19 | Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 20 |
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| 21 | /* Derived from objdump.c and nm.c by Ulrich.Lauther@mchp.siemens.de
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| 22 |
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| 23 | Usage:
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| 24 | addr2line [options] addr addr ...
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| 25 | or
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| 26 | addr2line [options]
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| 27 |
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| 28 | both forms write results to stdout, the second form reads addresses
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| 29 | to be converted from stdin. */
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| 30 |
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| 31 | #include <string.h>
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| 32 |
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| 33 | #include "bfd.h"
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| 34 | #include "getopt.h"
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| 35 | #include "libiberty.h"
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| 36 | #include "demangle.h"
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| 37 | #include "bucomm.h"
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| 38 | #include "budemang.h"
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| 39 |
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| 40 | static bfd_boolean with_functions; /* -f, show function names. */
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| 41 | static bfd_boolean do_demangle; /* -C, demangle names. */
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| 42 | static bfd_boolean base_names; /* -s, strip directory names. */
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| 43 |
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| 44 | static int naddr; /* Number of addresses to process. */
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| 45 | static char **addr; /* Hex addresses to process. */
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| 46 |
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| 47 | static asymbol **syms; /* Symbol table. */
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| 48 |
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| 49 | static struct option long_options[] =
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| 50 | {
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| 51 | {"basenames", no_argument, NULL, 's'},
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| 52 | {"demangle", optional_argument, NULL, 'C'},
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| 53 | {"exe", required_argument, NULL, 'e'},
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| 54 | {"functions", no_argument, NULL, 'f'},
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| 55 | {"target", required_argument, NULL, 'b'},
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| 56 | {"help", no_argument, NULL, 'H'},
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| 57 | {"version", no_argument, NULL, 'V'},
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| 58 | {0, no_argument, 0, 0}
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| 59 | };
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| 60 |
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| 61 | static void usage PARAMS ((FILE *, int));
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| 62 | static void slurp_symtab PARAMS ((bfd *));
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| 63 | static void find_address_in_section PARAMS ((bfd *, asection *, PTR));
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| 64 | static void translate_addresses PARAMS ((bfd *));
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| 65 | static void process_file PARAMS ((const char *, const char *));
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| 66 | |
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| 67 |
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| 68 | /* Print a usage message to STREAM and exit with STATUS. */
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| 69 |
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| 70 | static void
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| 71 | usage (stream, status)
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| 72 | FILE *stream;
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| 73 | int status;
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| 74 | {
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| 75 | fprintf (stream, _("Usage: %s [option(s)] [addr(s)]\n"), program_name);
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| 76 | fprintf (stream, _(" Convert addresses into line number/file name pairs.\n"));
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| 77 | fprintf (stream, _(" If no addresses are specified on the command line, they will be read from stdin\n"));
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| 78 | fprintf (stream, _(" The options are:\n\
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| 79 | -b --target=<bfdname> Set the binary file format\n\
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| 80 | -e --exe=<executable> Set the input file name (default is a.out)\n\
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| 81 | -s --basenames Strip directory names\n\
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| 82 | -f --functions Show function names\n\
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| 83 | -C --demangle[=style] Demangle function names\n\
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| 84 | -h --help Display this information\n\
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| 85 | -v --version Display the program's version\n\
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| 86 | \n"));
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| 87 |
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| 88 | list_supported_targets (program_name, stream);
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| 89 | if (status == 0)
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| 90 | fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
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| 91 | exit (status);
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| 92 | }
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| 93 | |
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| 94 |
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| 95 | /* Read in the symbol table. */
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| 96 |
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| 97 | static void
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| 98 | slurp_symtab (abfd)
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| 99 | bfd *abfd;
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| 100 | {
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| 101 | long symcount;
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| 102 | unsigned int size;
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| 103 |
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| 104 | if ((bfd_get_file_flags (abfd) & HAS_SYMS) == 0)
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| 105 | return;
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| 106 |
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| 107 | symcount = bfd_read_minisymbols (abfd, FALSE, (PTR) &syms, &size);
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| 108 | if (symcount == 0)
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| 109 | symcount = bfd_read_minisymbols (abfd, TRUE /* dynamic */, (PTR) &syms, &size);
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| 110 |
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| 111 | if (symcount < 0)
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| 112 | bfd_fatal (bfd_get_filename (abfd));
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| 113 | }
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| 114 | |
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| 115 |
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| 116 | /* These global variables are used to pass information between
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| 117 | translate_addresses and find_address_in_section. */
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| 118 |
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| 119 | static bfd_vma pc;
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| 120 | static const char *filename;
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| 121 | static const char *functionname;
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| 122 | static unsigned int line;
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| 123 | static bfd_boolean found;
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| 124 |
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| 125 | /* Look for an address in a section. This is called via
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| 126 | bfd_map_over_sections. */
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| 127 |
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| 128 | static void
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| 129 | find_address_in_section (abfd, section, data)
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| 130 | bfd *abfd;
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| 131 | asection *section;
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| 132 | PTR data ATTRIBUTE_UNUSED;
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| 133 | {
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| 134 | bfd_vma vma;
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| 135 | bfd_size_type size;
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| 136 |
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| 137 | if (found)
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| 138 | return;
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| 139 |
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| 140 | if ((bfd_get_section_flags (abfd, section) & SEC_ALLOC) == 0)
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| 141 | return;
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| 142 |
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| 143 | vma = bfd_get_section_vma (abfd, section);
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| 144 | if (pc < vma)
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| 145 | return;
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| 146 |
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| 147 | size = bfd_get_section_size_before_reloc (section);
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| 148 | if (pc >= vma + size)
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| 149 | return;
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| 150 |
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| 151 | found = bfd_find_nearest_line (abfd, section, syms, pc - vma,
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| 152 | &filename, &functionname, &line);
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| 153 | }
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| 154 |
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| 155 | /* Read hexadecimal addresses from stdin, translate into
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| 156 | file_name:line_number and optionally function name. */
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| 157 |
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| 158 | static void
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| 159 | translate_addresses (abfd)
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| 160 | bfd *abfd;
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| 161 | {
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| 162 | int read_stdin = (naddr == 0);
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| 163 |
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| 164 | for (;;)
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| 165 | {
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| 166 | if (read_stdin)
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| 167 | {
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| 168 | char addr_hex[100];
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| 169 |
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| 170 | if (fgets (addr_hex, sizeof addr_hex, stdin) == NULL)
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| 171 | break;
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| 172 | pc = bfd_scan_vma (addr_hex, NULL, 16);
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| 173 | }
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| 174 | else
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| 175 | {
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| 176 | if (naddr <= 0)
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| 177 | break;
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| 178 | --naddr;
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| 179 | pc = bfd_scan_vma (*addr++, NULL, 16);
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| 180 | }
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| 181 |
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| 182 | found = FALSE;
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| 183 | bfd_map_over_sections (abfd, find_address_in_section, (PTR) NULL);
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| 184 |
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| 185 | if (! found)
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| 186 | {
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| 187 | if (with_functions)
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| 188 | printf ("??\n");
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| 189 | printf ("??:0\n");
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| 190 | }
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| 191 | else
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| 192 | {
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| 193 | if (with_functions)
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| 194 | {
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| 195 | const char *name;
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| 196 | char *alloc = NULL;
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| 197 |
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| 198 | name = functionname;
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| 199 | if (name == NULL || *name == '\0')
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| 200 | name = "??";
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| 201 | else if (do_demangle)
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| 202 | {
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| 203 | alloc = demangle (abfd, name);
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| 204 | name = alloc;
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| 205 | }
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| 206 |
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| 207 | printf ("%s\n", name);
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| 208 |
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| 209 | if (alloc != NULL)
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| 210 | free (alloc);
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| 211 | }
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| 212 |
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| 213 | if (base_names && filename != NULL)
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| 214 | {
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| 215 | char *h;
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| 216 |
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| 217 | h = strrchr (filename, '/');
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| 218 | if (h != NULL)
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| 219 | filename = h + 1;
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| 220 | }
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| 221 |
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| 222 | printf ("%s:%u\n", filename ? filename : "??", line);
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| 223 | }
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| 224 |
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| 225 | /* fflush() is essential for using this command as a server
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| 226 | child process that reads addresses from a pipe and responds
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| 227 | with line number information, processing one address at a
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| 228 | time. */
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| 229 | fflush (stdout);
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| 230 | }
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| 231 | }
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| 232 |
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| 233 | /* Process a file. */
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| 234 |
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| 235 | static void
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| 236 | process_file (file_name, target)
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| 237 | const char *file_name;
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| 238 | const char *target;
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| 239 | {
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| 240 | bfd *abfd;
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| 241 | char **matching;
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| 242 |
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| 243 | abfd = bfd_openr (file_name, target);
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| 244 | if (abfd == NULL)
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| 245 | bfd_fatal (file_name);
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| 246 |
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| 247 | if (bfd_check_format (abfd, bfd_archive))
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| 248 | fatal (_("%s: can not get addresses from archive"), file_name);
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| 249 |
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| 250 | if (! bfd_check_format_matches (abfd, bfd_object, &matching))
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| 251 | {
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| 252 | bfd_nonfatal (bfd_get_filename (abfd));
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| 253 | if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
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| 254 | {
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| 255 | list_matching_formats (matching);
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| 256 | free (matching);
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| 257 | }
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| 258 | xexit (1);
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| 259 | }
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| 260 |
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| 261 | slurp_symtab (abfd);
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| 262 |
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| 263 | translate_addresses (abfd);
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| 264 |
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| 265 | if (syms != NULL)
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| 266 | {
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| 267 | free (syms);
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| 268 | syms = NULL;
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| 269 | }
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| 270 |
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| 271 | bfd_close (abfd);
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| 272 | }
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| 273 | |
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| 274 |
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| 275 | int main PARAMS ((int, char **));
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| 276 |
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| 277 | int
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| 278 | main (argc, argv)
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| 279 | int argc;
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| 280 | char **argv;
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| 281 | {
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| 282 | const char *file_name;
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| 283 | char *target;
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| 284 | int c;
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| 285 |
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| 286 | #if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
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| 287 | setlocale (LC_MESSAGES, "");
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| 288 | #endif
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| 289 | #if defined (HAVE_SETLOCALE)
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| 290 | setlocale (LC_CTYPE, "");
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| 291 | #endif
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| 292 | bindtextdomain (PACKAGE, LOCALEDIR);
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| 293 | textdomain (PACKAGE);
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| 294 |
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| 295 | program_name = *argv;
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| 296 | xmalloc_set_program_name (program_name);
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| 297 |
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| 298 | bfd_init ();
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| 299 | set_default_bfd_target ();
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| 300 |
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| 301 | file_name = NULL;
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| 302 | target = NULL;
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| 303 | while ((c = getopt_long (argc, argv, "b:Ce:sfHhVv", long_options, (int *) 0))
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| 304 | != EOF)
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| 305 | {
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| 306 | switch (c)
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| 307 | {
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| 308 | case 0:
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| 309 | break; /* We've been given a long option. */
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| 310 | case 'b':
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| 311 | target = optarg;
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| 312 | break;
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| 313 | case 'C':
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| 314 | do_demangle = TRUE;
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| 315 | if (optarg != NULL)
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| 316 | {
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| 317 | enum demangling_styles style;
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| 318 |
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| 319 | style = cplus_demangle_name_to_style (optarg);
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| 320 | if (style == unknown_demangling)
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| 321 | fatal (_("unknown demangling style `%s'"),
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| 322 | optarg);
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| 323 |
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| 324 | cplus_demangle_set_style (style);
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| 325 | }
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| 326 | break;
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| 327 | case 'e':
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| 328 | file_name = optarg;
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| 329 | break;
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| 330 | case 's':
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| 331 | base_names = TRUE;
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| 332 | break;
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| 333 | case 'f':
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| 334 | with_functions = TRUE;
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| 335 | break;
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| 336 | case 'v':
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| 337 | case 'V':
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| 338 | print_version ("addr2line");
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| 339 | break;
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| 340 | case 'h':
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| 341 | case 'H':
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| 342 | usage (stdout, 0);
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| 343 | break;
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| 344 | default:
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| 345 | usage (stderr, 1);
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| 346 | break;
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| 347 | }
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| 348 | }
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| 349 |
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| 350 | if (file_name == NULL)
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| 351 | file_name = "a.out";
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| 352 |
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| 353 | addr = argv + optind;
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| 354 | naddr = argc - optind;
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| 355 |
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| 356 | process_file (file_name, target);
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| 357 |
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| 358 | return 0;
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| 359 | }
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