Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 1 | /* Get CFI from DWARF file. |
| 2 | Copyright (C) 2009 Red Hat, Inc. |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame] | 3 | This file is part of elfutils. |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 4 | |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame] | 5 | This file is free software; you can redistribute it and/or modify |
| 6 | it under the terms of either |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 7 | |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame] | 8 | * the GNU Lesser General Public License as published by the Free |
| 9 | Software Foundation; either version 3 of the License, or (at |
| 10 | your option) any later version |
| 11 | |
| 12 | or |
| 13 | |
| 14 | * the GNU General Public License as published by the Free |
| 15 | Software Foundation; either version 2 of the License, or (at |
| 16 | your option) any later version |
| 17 | |
| 18 | or both in parallel, as here. |
| 19 | |
| 20 | elfutils is distributed in the hope that it will be useful, but |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 21 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 23 | General Public License for more details. |
| 24 | |
Elliott Hughes | 0333382 | 2015-02-18 22:19:45 -0800 | [diff] [blame] | 25 | You should have received copies of the GNU General Public License and |
| 26 | the GNU Lesser General Public License along with this program. If |
| 27 | not, see <http://www.gnu.org/licenses/>. */ |
Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 28 | |
| 29 | #ifdef HAVE_CONFIG_H |
| 30 | # include <config.h> |
| 31 | #endif |
| 32 | |
| 33 | #include "libdwP.h" |
| 34 | #include "cfi.h" |
| 35 | #include <dwarf.h> |
| 36 | |
| 37 | Dwarf_CFI * |
| 38 | dwarf_getcfi (dbg) |
| 39 | Dwarf *dbg; |
| 40 | { |
| 41 | if (dbg == NULL) |
| 42 | return NULL; |
| 43 | |
| 44 | if (dbg->cfi == NULL && dbg->sectiondata[IDX_debug_frame] != NULL) |
| 45 | { |
| 46 | Dwarf_CFI *cfi = libdw_typed_alloc (dbg, Dwarf_CFI); |
| 47 | |
| 48 | cfi->dbg = dbg; |
| 49 | cfi->data = (Elf_Data_Scn *) dbg->sectiondata[IDX_debug_frame]; |
| 50 | |
| 51 | cfi->search_table = NULL; |
| 52 | cfi->search_table_vaddr = 0; |
| 53 | cfi->search_table_entries = 0; |
| 54 | cfi->search_table_encoding = DW_EH_PE_omit; |
| 55 | |
| 56 | cfi->frame_vaddr = 0; |
| 57 | cfi->textrel = 0; |
| 58 | cfi->datarel = 0; |
| 59 | |
| 60 | cfi->e_ident = (unsigned char *) elf_getident (dbg->elf, NULL); |
| 61 | cfi->other_byte_order = dbg->other_byte_order; |
| 62 | |
| 63 | cfi->next_offset = 0; |
| 64 | cfi->cie_tree = cfi->fde_tree = cfi->expr_tree = NULL; |
| 65 | |
| 66 | cfi->ebl = NULL; |
| 67 | |
| 68 | dbg->cfi = cfi; |
| 69 | } |
| 70 | |
| 71 | return dbg->cfi; |
| 72 | } |
| 73 | INTDEF (dwarf_getcfi) |