Ben Cheng | 25b3c04 | 2013-11-20 14:45:36 -0800 | [diff] [blame] | 1 | /* Find DWARF CFI for a module in libdwfl. |
| 2 | Copyright (C) 2009-2010 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 | #include "libdwflP.h" |
| 30 | #include "../libdw/cfi.h" |
| 31 | |
| 32 | Dwarf_CFI * |
| 33 | internal_function |
| 34 | __libdwfl_set_cfi (Dwfl_Module *mod, Dwarf_CFI **slot, Dwarf_CFI *cfi) |
| 35 | { |
| 36 | if (cfi != NULL && cfi->ebl == NULL) |
| 37 | { |
| 38 | Dwfl_Error error = __libdwfl_module_getebl (mod); |
| 39 | if (error == DWFL_E_NOERROR) |
| 40 | cfi->ebl = mod->ebl; |
| 41 | else |
| 42 | { |
| 43 | if (slot == &mod->eh_cfi) |
| 44 | INTUSE(dwarf_cfi_end) (cfi); |
| 45 | __libdwfl_seterrno (error); |
| 46 | return NULL; |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | return *slot = cfi; |
| 51 | } |
| 52 | |
| 53 | Dwarf_CFI * |
| 54 | dwfl_module_dwarf_cfi (mod, bias) |
| 55 | Dwfl_Module *mod; |
| 56 | Dwarf_Addr *bias; |
| 57 | { |
| 58 | if (mod == NULL) |
| 59 | return NULL; |
| 60 | |
| 61 | if (mod->dwarf_cfi != NULL) |
| 62 | { |
| 63 | *bias = dwfl_adjusted_dwarf_addr (mod, 0); |
| 64 | return mod->dwarf_cfi; |
| 65 | } |
| 66 | |
| 67 | return __libdwfl_set_cfi (mod, &mod->dwarf_cfi, |
| 68 | INTUSE(dwarf_getcfi) |
| 69 | (INTUSE(dwfl_module_getdwarf) (mod, bias))); |
| 70 | } |
| 71 | INTDEF (dwfl_module_dwarf_cfi) |