Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 1 | /* Return location expression to find return value given a function type DIE. |
Ulrich Drepper | e1812e1 | 2006-07-12 07:46:03 +0000 | [diff] [blame] | 2 | Copyright (C) 2005, 2006 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 4 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 5 | This file is free software; you can redistribute it and/or modify |
| 6 | it under the terms of either |
Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 7 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [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 |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [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 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [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/>. */ |
Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 28 | |
| 29 | #include "libdwflP.h" |
| 30 | |
| 31 | |
| 32 | int |
| 33 | dwfl_module_return_value_location (mod, functypedie, locops) |
| 34 | Dwfl_Module *mod; |
| 35 | Dwarf_Die *functypedie; |
| 36 | const Dwarf_Op **locops; |
| 37 | { |
| 38 | if (mod == NULL) |
| 39 | return -1; |
| 40 | |
| 41 | if (mod->ebl == NULL) |
| 42 | { |
Ulrich Drepper | e1812e1 | 2006-07-12 07:46:03 +0000 | [diff] [blame] | 43 | Dwfl_Error error = __libdwfl_module_getebl (mod); |
| 44 | if (error != DWFL_E_NOERROR) |
Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 45 | { |
Ulrich Drepper | e1812e1 | 2006-07-12 07:46:03 +0000 | [diff] [blame] | 46 | __libdwfl_seterrno (error); |
Roland McGrath | e47ab76 | 2005-11-17 03:16:00 +0000 | [diff] [blame] | 47 | return -1; |
| 48 | } |
| 49 | } |
| 50 | |
| 51 | int nops = ebl_return_value_location (mod->ebl, functypedie, locops); |
| 52 | if (unlikely (nops < 0)) |
| 53 | { |
| 54 | if (nops == -1) |
| 55 | __libdwfl_seterrno (DWFL_E_LIBDW); |
| 56 | else if (nops == -2) |
| 57 | __libdwfl_seterrno (DWFL_E_WEIRD_TYPE); |
| 58 | else |
| 59 | __libdwfl_seterrno (DWFL_E_LIBEBL); |
| 60 | nops = -1; |
| 61 | } |
| 62 | |
| 63 | return nops; |
| 64 | } |