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| 1 /*===---- unwind.h - Stack unwinding ----------------------------------------=== | |
| 2 * | |
| 3 * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 4 * of this software and associated documentation files (the "Software"), to deal | |
| 5 * in the Software without restriction, including without limitation the rights | |
| 6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 7 * copies of the Software, and to permit persons to whom the Software is | |
| 8 * furnished to do so, subject to the following conditions: | |
| 9 * | |
| 10 * The above copyright notice and this permission notice shall be included in | |
| 11 * all copies or substantial portions of the Software. | |
| 12 * | |
| 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| 19 * THE SOFTWARE. | |
| 20 * | |
| 21 *===-----------------------------------------------------------------------=== | |
| 22 */ | |
| 23 | |
| 24 /* See "Data Definitions for libgcc_s" in the Linux Standard Base.*/ | |
| 25 | |
| 26 #ifndef __CLANG_UNWIND_H | |
| 27 #define __CLANG_UNWIND_H | |
| 28 | |
| 29 #if __has_include_next(<unwind.h>) | |
| 30 /* Darwin and libunwind provide an unwind.h. If that's available, use | |
| 31 * it. libunwind wraps some of its definitions in #ifdef _GNU_SOURCE, | |
| 32 * so define that around the include.*/ | |
| 33 # ifndef _GNU_SOURCE | |
| 34 # define _SHOULD_UNDEFINE_GNU_SOURCE | |
| 35 # define _GNU_SOURCE | |
| 36 # endif | |
| 37 // libunwind's unwind.h reflects the current visibility. However, Mozilla | |
| 38 // builds with -fvisibility=hidden and relies on gcc's unwind.h to reset the | |
| 39 // visibility to default and export its contents. gcc also allows users to | |
| 40 // override its override by #defining HIDE_EXPORTS (but note, this only obeys | |
| 41 // the user's -fvisibility setting; it doesn't hide any exports on its own). We | |
| 42 // imitate gcc's header here: | |
| 43 # ifdef HIDE_EXPORTS | |
| 44 # include_next <unwind.h> | |
| 45 # else | |
| 46 # pragma GCC visibility push(default) | |
| 47 # include_next <unwind.h> | |
| 48 # pragma GCC visibility pop | |
| 49 # endif | |
| 50 # ifdef _SHOULD_UNDEFINE_GNU_SOURCE | |
| 51 # undef _GNU_SOURCE | |
| 52 # undef _SHOULD_UNDEFINE_GNU_SOURCE | |
| 53 # endif | |
| 54 #else | |
| 55 | |
| 56 #include <stdint.h> | |
| 57 | |
| 58 #ifdef __cplusplus | |
| 59 extern "C" { | |
| 60 #endif | |
| 61 | |
| 62 /* It is a bit strange for a header to play with the visibility of the | |
| 63 symbols it declares, but this matches gcc's behavior and some programs | |
| 64 depend on it */ | |
| 65 #ifndef HIDE_EXPORTS | |
| 66 #pragma GCC visibility push(default) | |
| 67 #endif | |
| 68 | |
| 69 struct _Unwind_Context; | |
| 70 typedef enum { | |
| 71 _URC_NO_REASON = 0, | |
| 72 _URC_FOREIGN_EXCEPTION_CAUGHT = 1, | |
| 73 | |
| 74 _URC_FATAL_PHASE2_ERROR = 2, | |
| 75 _URC_FATAL_PHASE1_ERROR = 3, | |
| 76 _URC_NORMAL_STOP = 4, | |
| 77 | |
| 78 _URC_END_OF_STACK = 5, | |
| 79 _URC_HANDLER_FOUND = 6, | |
| 80 _URC_INSTALL_CONTEXT = 7, | |
| 81 _URC_CONTINUE_UNWIND = 8 | |
| 82 } _Unwind_Reason_Code; | |
| 83 | |
| 84 | |
| 85 #ifdef __arm__ | |
| 86 | |
| 87 typedef enum { | |
| 88 _UVRSC_CORE = 0, /* integer register */ | |
| 89 _UVRSC_VFP = 1, /* vfp */ | |
| 90 _UVRSC_WMMXD = 3, /* Intel WMMX data register */ | |
| 91 _UVRSC_WMMXC = 4 /* Intel WMMX control register */ | |
| 92 } _Unwind_VRS_RegClass; | |
| 93 | |
| 94 typedef enum { | |
| 95 _UVRSD_UINT32 = 0, | |
| 96 _UVRSD_VFPX = 1, | |
| 97 _UVRSD_UINT64 = 3, | |
| 98 _UVRSD_FLOAT = 4, | |
| 99 _UVRSD_DOUBLE = 5 | |
| 100 } _Unwind_VRS_DataRepresentation; | |
| 101 | |
| 102 typedef enum { | |
| 103 _UVRSR_OK = 0, | |
| 104 _UVRSR_NOT_IMPLEMENTED = 1, | |
| 105 _UVRSR_FAILED = 2 | |
| 106 } _Unwind_VRS_Result; | |
| 107 | |
| 108 _Unwind_VRS_Result _Unwind_VRS_Get(struct _Unwind_Context *__context, | |
| 109 _Unwind_VRS_RegClass __regclass, | |
| 110 uint32_t __regno, | |
| 111 _Unwind_VRS_DataRepresentation __representation, | |
| 112 void *__valuep); | |
| 113 | |
| 114 #else | |
| 115 | |
| 116 uintptr_t _Unwind_GetIP(struct _Unwind_Context* __context); | |
| 117 | |
| 118 #endif | |
| 119 | |
| 120 typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context*, void*); | |
| 121 _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void*); | |
| 122 | |
| 123 #ifndef HIDE_EXPORTS | |
| 124 #pragma GCC visibility pop | |
| 125 #endif | |
| 126 | |
| 127 #ifdef __cplusplus | |
| 128 } | |
| 129 #endif | |
| 130 | |
| 131 #endif | |
| 132 | |
| 133 #endif /* __CLANG_UNWIND_H */ | |
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Chromium Code Reviews
Issue 228113004:
roll llvm-allocated-type 186332:204777. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/llvm-allocated-type/