1 /* Release debugging handling context. 2 Copyright (C) 2002-2011, 2014 Red Hat, Inc. 3 This file is part of elfutils. 4 Written by Ulrich Drepper <drepper (at) redhat.com>, 2002. 5 6 This file is free software; you can redistribute it and/or modify 7 it under the terms of either 8 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 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 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/>. */ 29 30 #ifdef HAVE_CONFIG_H 31 # include <config.h> 32 #endif 33 34 #include <search.h> 35 #include <stdlib.h> 36 #include <assert.h> 37 #include <string.h> 38 39 #include "libdwP.h" 40 #include "cfi.h" 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 60 int 61 dwarf_end (Dwarf *dwarf) 62 { 63 if (dwarf != NULL) 64 { 65 if (dwarf->cfi != NULL) 66 /* Clean up the CFI cache. */ 67 __libdw_destroy_frame_cache (dwarf->cfi); 68 69 Dwarf_Sig8_Hash_free (&dwarf->sig8_hash); 70 71 /* The search tree for the CUs. NB: the CU data itself is 72 allocated separately, but the abbreviation hash tables need 73 to be handled. */ 74 tdestroy (dwarf->cu_tree, cu_free); 75 tdestroy (dwarf->tu_tree, cu_free); 76 77 /* Search tree for macro opcode tables. */ 78 tdestroy (dwarf->macro_ops, noop_free); 79 80 /* Search tree for decoded .debug_lines units. */ 81 tdestroy (dwarf->files_lines, noop_free); 82 83 struct libdw_memblock *memp = dwarf->mem_tail; 84 /* The first block is allocated together with the Dwarf object. */ 85 while (memp->prev != NULL) 86 { 87 struct libdw_memblock *prevp = memp->prev; 88 free (memp); 89 memp = prevp; 90 } 91 92 /* Free the pubnames helper structure. */ 93 free (dwarf->pubnames_sets); 94 95 /* Free the ELF descriptor if necessary. */ 96 if (dwarf->free_elf) 97 elf_end (dwarf->elf); 98 99 /* Free the fake location list CU. */ 100 if (dwarf->fake_loc_cu != NULL) 101 { 102 cu_free (dwarf->fake_loc_cu); 103 free (dwarf->fake_loc_cu); 104 } 105 106 /* Free the context descriptor. */ 107 free (dwarf); 108 } 109 110 return 0; 111 } 112 INTDEF(dwarf_end) 113
