Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 1 | /* Test program for dwarf_lowpc and dwarf_highpc |
| 2 | Copyright (C) 2012 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 4 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 5 | This file is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3 of the License, or |
| 8 | (at your option) any later version. |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 9 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 10 | elfutils is distributed in the hope that it will be useful, but |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 11 | WITHOUT ANY WARRANTY; without even the implied warranty of |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 14 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 17 | |
| 18 | #include <config.h> |
| 19 | #include <assert.h> |
| 20 | #include <inttypes.h> |
| 21 | #include ELFUTILS_HEADER(dwfl) |
| 22 | #include <dwarf.h> |
| 23 | #include <argp.h> |
| 24 | #include <stdio.h> |
| 25 | #include <stdio_ext.h> |
| 26 | #include <locale.h> |
| 27 | #include <stdlib.h> |
| 28 | #include <error.h> |
| 29 | #include <string.h> |
| 30 | #include <fnmatch.h> |
| 31 | |
| 32 | struct args |
| 33 | { |
| 34 | Dwfl *dwfl; |
| 35 | Dwarf_Die *cu; |
| 36 | Dwarf_Addr dwbias; |
| 37 | char **argv; |
| 38 | const char *file; |
| 39 | }; |
| 40 | |
| 41 | static struct args *args; |
| 42 | |
| 43 | static void |
| 44 | fail(Dwarf_Off off, const char *name, const char *msg) |
| 45 | { |
Mark Wielaard | 547049b | 2012-06-22 18:19:02 +0200 | [diff] [blame] | 46 | printf("%s: [%" PRIx64 "] '%s' %s\n", args->file, off, name, msg); |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 47 | exit(-1); |
| 48 | } |
| 49 | |
| 50 | static int |
| 51 | handle_die (Dwarf_Die *die, void *arg) |
| 52 | { |
| 53 | args = arg; |
| 54 | Dwarf_Off off = dwarf_dieoffset (die); |
| 55 | |
| 56 | const char *name = dwarf_diename (die); |
| 57 | if (name == NULL) |
| 58 | fail (off, "<no name>", "die without a name"); |
| 59 | |
| 60 | Dwarf_Addr lowpc = 0; |
| 61 | Dwarf_Addr highpc = 0; |
| 62 | if (dwarf_lowpc (die, &lowpc) != 0 && dwarf_hasattr (die, DW_AT_low_pc)) |
| 63 | fail (off, name, "has DW_AT_low_pc but dwarf_lowpc fails"); |
| 64 | if (dwarf_highpc (die, &highpc) != 0 && dwarf_hasattr (die, DW_AT_high_pc)) |
| 65 | fail (off, name, "has DW_AT_high_pc but dwarf_highpc fails"); |
| 66 | |
Mark Wielaard | d9bc75f | 2012-05-07 13:29:52 +0200 | [diff] [blame] | 67 | /* GCC < 4.7 had a bug where no code CUs got a highpc == lowpc. |
| 68 | Allow that, because it is not the main purpose of this test. */ |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 69 | if (dwarf_hasattr (die, DW_AT_low_pc) |
| 70 | && dwarf_hasattr (die, DW_AT_high_pc) |
Mark Wielaard | d9bc75f | 2012-05-07 13:29:52 +0200 | [diff] [blame] | 71 | && highpc <= lowpc |
| 72 | && ! (dwarf_tag (die) == DW_TAG_compile_unit && highpc == lowpc)) |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 73 | { |
Mark Wielaard | 547049b | 2012-06-22 18:19:02 +0200 | [diff] [blame] | 74 | printf("lowpc: %" PRIx64 ", highpc: %" PRIx64 "lx\n", lowpc, highpc); |
Mark Wielaard | 5479725 | 2012-04-27 13:00:50 +0200 | [diff] [blame] | 75 | fail (off, name, "highpc <= lowpc"); |
| 76 | } |
| 77 | |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | |
| 82 | int |
| 83 | main (int argc, char *argv[]) |
| 84 | { |
| 85 | int remaining; |
| 86 | |
| 87 | /* Set locale. */ |
| 88 | (void) setlocale (LC_ALL, ""); |
| 89 | |
| 90 | struct args a = { .dwfl = NULL, .cu = NULL }; |
| 91 | |
| 92 | (void) argp_parse (dwfl_standard_argp (), argc, argv, 0, &remaining, |
| 93 | &a.dwfl); |
| 94 | assert (a.dwfl != NULL); |
| 95 | a.argv = &argv[remaining]; |
| 96 | |
| 97 | int result = 0; |
| 98 | |
| 99 | while ((a.cu = dwfl_nextcu (a.dwfl, a.cu, &a.dwbias)) != NULL) |
| 100 | { |
| 101 | a.file = dwarf_diename (a.cu); |
| 102 | handle_die (a.cu, &a); |
| 103 | dwarf_getfuncs (a.cu, &handle_die, &a, 0); |
| 104 | } |
| 105 | |
| 106 | dwfl_end (a.dwfl); |
| 107 | |
| 108 | return result; |
| 109 | } |