Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Release debugging handling context. |
Mark Wielaard | df85bf9 | 2014-05-01 14:48:27 +0200 | [diff] [blame] | 2 | Copyright (C) 2002-2011, 2014 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Written by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 9 | * the GNU Lesser General Public License as published by the Free |
| 10 | Software Foundation; either version 3 of the License, or (at |
| 11 | your option) any later version |
| 12 | |
| 13 | or |
| 14 | |
| 15 | * the GNU General Public License as published by the Free |
| 16 | Software Foundation; either version 2 of the License, or (at |
| 17 | your option) any later version |
| 18 | |
| 19 | or both in parallel, as here. |
| 20 | |
| 21 | elfutils is distributed in the hope that it will be useful, but |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 22 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | General Public License for more details. |
| 25 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 26 | You should have received copies of the GNU General Public License and |
| 27 | the GNU Lesser General Public License along with this program. If |
| 28 | not, see <http://www.gnu.org/licenses/>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | # include <config.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <search.h> |
| 35 | #include <stdlib.h> |
Roland McGrath | 725aad5 | 2011-02-23 19:52:46 -0800 | [diff] [blame] | 36 | #include <assert.h> |
| 37 | #include <string.h> |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 38 | |
| 39 | #include "libdwP.h" |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 40 | #include "cfi.h" |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 41 | |
| 42 | |
| 43 | static void |
| 44 | noop_free (void *arg __attribute__ ((unused))) |
| 45 | { |
| 46 | } |
| 47 | |
| 48 | |
| 49 | static void |
| 50 | cu_free (void *arg) |
| 51 | { |
| 52 | struct Dwarf_CU *p = (struct Dwarf_CU *) arg; |
| 53 | |
| 54 | Dwarf_Abbrev_Hash_free (&p->abbrev_hash); |
| 55 | |
| 56 | tdestroy (p->locs, noop_free); |
| 57 | } |
| 58 | |
| 59 | |
Roland McGrath | 725aad5 | 2011-02-23 19:52:46 -0800 | [diff] [blame] | 60 | #if USE_ZLIB |
| 61 | void |
| 62 | internal_function |
| 63 | __libdw_free_zdata (Dwarf *dwarf) |
| 64 | { |
| 65 | unsigned int gzip_mask = dwarf->sectiondata_gzip_mask; |
| 66 | while (gzip_mask != 0) |
| 67 | { |
| 68 | int i = ffs (gzip_mask); |
| 69 | assert (i > 0); |
| 70 | --i; |
| 71 | assert (i < IDX_last); |
| 72 | free (dwarf->sectiondata[i]); |
| 73 | gzip_mask &= ~(1U << i); |
| 74 | } |
| 75 | } |
| 76 | #endif |
| 77 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 78 | int |
| 79 | dwarf_end (dwarf) |
| 80 | Dwarf *dwarf; |
| 81 | { |
| 82 | if (dwarf != NULL) |
| 83 | { |
Roland McGrath | 3c84db3 | 2009-06-24 17:41:40 -0700 | [diff] [blame] | 84 | if (dwarf->cfi != NULL) |
| 85 | /* Clean up the CFI cache. */ |
| 86 | __libdw_destroy_frame_cache (dwarf->cfi); |
| 87 | |
Roland McGrath | 3e0f7d1 | 2010-06-15 23:10:35 -0700 | [diff] [blame] | 88 | Dwarf_Sig8_Hash_free (&dwarf->sig8_hash); |
| 89 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 90 | /* The search tree for the CUs. NB: the CU data itself is |
| 91 | allocated separately, but the abbreviation hash tables need |
| 92 | to be handled. */ |
| 93 | tdestroy (dwarf->cu_tree, cu_free); |
Roland McGrath | 2b1f095 | 2010-06-20 17:55:50 -0700 | [diff] [blame] | 94 | tdestroy (dwarf->tu_tree, cu_free); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 95 | |
Petr Machata | fb90bf3 | 2014-10-17 02:47:03 +0200 | [diff] [blame] | 96 | /* Search tree for macro opcode tables. */ |
| 97 | tdestroy (dwarf->macro_ops, noop_free); |
| 98 | |
| 99 | /* Search tree for decoded .debug_lines units. */ |
| 100 | tdestroy (dwarf->files_lines, noop_free); |
| 101 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 102 | struct libdw_memblock *memp = dwarf->mem_tail; |
| 103 | /* The first block is allocated together with the Dwarf object. */ |
| 104 | while (memp->prev != NULL) |
| 105 | { |
| 106 | struct libdw_memblock *prevp = memp->prev; |
| 107 | free (memp); |
| 108 | memp = prevp; |
| 109 | } |
| 110 | |
| 111 | /* Free the pubnames helper structure. */ |
| 112 | free (dwarf->pubnames_sets); |
| 113 | |
Roland McGrath | 725aad5 | 2011-02-23 19:52:46 -0800 | [diff] [blame] | 114 | __libdw_free_zdata (dwarf); |
| 115 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 116 | /* Free the ELF descriptor if necessary. */ |
| 117 | if (dwarf->free_elf) |
| 118 | elf_end (dwarf->elf); |
| 119 | |
| 120 | /* Free the context descriptor. */ |
| 121 | free (dwarf); |
| 122 | } |
| 123 | |
| 124 | return 0; |
| 125 | } |
Roland McGrath | 4959bf8 | 2005-08-09 10:31:08 +0000 | [diff] [blame] | 126 | INTDEF(dwarf_end) |