Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Return source file information of CU. |
| 2 | Copyright (C) 2004, 2005 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>, 2004. |
| 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 <assert.h> |
| 35 | #include <dwarf.h> |
| 36 | #include "libdwP.h" |
| 37 | |
| 38 | |
| 39 | int |
| 40 | dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles) |
| 41 | { |
| 42 | if (unlikely (cudie == NULL |
| 43 | || INTUSE(dwarf_tag) (cudie) != DW_TAG_compile_unit)) |
| 44 | return -1; |
| 45 | |
| 46 | int res = -1; |
| 47 | |
| 48 | /* Get the information if it is not already known. */ |
| 49 | struct Dwarf_CU *const cu = cudie->cu; |
| 50 | if (cu->lines == NULL) |
| 51 | { |
| 52 | Dwarf_Lines *lines; |
| 53 | size_t nlines; |
| 54 | |
| 55 | /* Let the more generic function do the work. It'll create more |
| 56 | data but that will be needed in an real program anyway. */ |
| 57 | res = INTUSE(dwarf_getsrclines) (cudie, &lines, &nlines); |
| 58 | } |
| 59 | else if (cu->files != (void *) -1l) |
| 60 | /* We already have the information. */ |
| 61 | res = 0; |
| 62 | |
| 63 | if (likely (res == 0)) |
| 64 | { |
| 65 | assert (cu->files != NULL && cu->files != (void *) -1l); |
| 66 | *files = cu->files; |
| 67 | if (nfiles != NULL) |
| 68 | *nfiles = cu->files->nfiles; |
| 69 | } |
| 70 | |
| 71 | // XXX Eventually: unlocking here. |
| 72 | |
| 73 | return res; |
| 74 | } |
| 75 | INTDEF (dwarf_getsrcfiles) |