projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 677f3fa8 JM |
1 | /* Default common target hook functions. |
| 2 | Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 | |
| 3 | Free Software Foundation, Inc. | |
| 4 | ||
| 5 | This file is part of GCC. | |
| 6 | ||
| 7 | GCC is free software; you can redistribute it and/or modify it under | |
| 8 | the terms of the GNU General Public License as published by the Free | |
| 9 | Software Foundation; either version 3, or (at your option) any later | |
| 10 | version. | |
| 11 | ||
| 12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 | for more details. | |
| 16 | ||
| 17 | You should have received a copy of the GNU General Public License | |
| 18 | along with GCC; see the file COPYING3. If not see | |
| 19 | <http://www.gnu.org/licenses/>. */ | |
| 20 | ||
| 21 | #include "config.h" | |
| 22 | #include "system.h" | |
| 23 | #include "coretypes.h" | |
| 24 | #include "input.h" | |
| 25 | #include "tm.h" | |
| 26 | #include "common/common-target.h" | |
| 27 | #include "common/common-targhooks.h" | |
| 28 | ||
| 29 | /* Determine the exception handling mechanism for the target. */ | |
| 30 | ||
| 31 | enum unwind_info_type | |
| 32 | default_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) | |
| 33 | { | |
| 34 | /* Obey the configure switch to turn on sjlj exceptions. */ | |
| 35 | #ifdef CONFIG_SJLJ_EXCEPTIONS | |
| 36 | if (CONFIG_SJLJ_EXCEPTIONS) | |
| 37 | return UI_SJLJ; | |
| 38 | #endif | |
| 39 | ||
| 40 | /* ??? Change all users to the hook, then poison this. */ | |
| 41 | #ifdef DWARF2_UNWIND_INFO | |
| 42 | if (DWARF2_UNWIND_INFO) | |
| 43 | return UI_DWARF2; | |
| 44 | #endif | |
| 45 | ||
| 46 | return UI_SJLJ; | |
| 47 | } | |
| 48 | ||
| 49 | /* To be used by targets that force dwarf2 unwind enabled. */ | |
| 50 | ||
| 51 | enum unwind_info_type | |
| 52 | dwarf2_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) | |
| 53 | { | |
| 54 | /* Obey the configure switch to turn on sjlj exceptions. */ | |
| 55 | #ifdef CONFIG_SJLJ_EXCEPTIONS | |
| 56 | if (CONFIG_SJLJ_EXCEPTIONS) | |
| 57 | return UI_SJLJ; | |
| 58 | #endif | |
| 59 | ||
| 60 | return UI_DWARF2; | |
| 61 | } | |
| 62 | ||
| 63 | /* To be used by targets that force sjlj unwind enabled. */ | |
| 64 | ||
| 65 | enum unwind_info_type | |
| 66 | sjlj_except_unwind_info (struct gcc_options *opts ATTRIBUTE_UNUSED) | |
| 67 | { | |
| 68 | return UI_SJLJ; | |
| 69 | } | |
| 70 | ||
| 71 | /* Default version of TARGET_HANDLE_OPTION. */ | |
| 72 | ||
| 73 | bool | |
| 74 | default_target_handle_option (struct gcc_options *opts ATTRIBUTE_UNUSED, | |
| 75 | struct gcc_options *opts_set ATTRIBUTE_UNUSED, | |
| 76 | const struct cl_decoded_option *decoded ATTRIBUTE_UNUSED, | |
| 77 | location_t loc ATTRIBUTE_UNUSED) | |
| 78 | { | |
| 79 | return true; | |
| 80 | } | |
| 81 | ||
| 82 | const struct default_options empty_optimization_table[] = | |
| 83 | { | |
| 84 | { OPT_LEVELS_NONE, 0, NULL, 0 } | |
| 85 | }; |