unwind.h revision 9b7568da31b0dc97e15253391cb100e9958d3d78 
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#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >=  1070
27/* Starting in OS X Lion the SDK includes a unwind.h. We should just use it. */
28#include_next <unwind.h>
29#else
30
31#include <stdint.h>
32
33#ifdef __cplusplus
34extern "C" {
35#endif
36
37/* It is a bit strange for a header to play with the visibility of the
38   symbols it declares, but this matches gcc's behavior and some programs
39   depend on it */
40#pragma GCC visibility push(default)
41
42struct _Unwind_Context;
43typedef enum {
44  _URC_NO_REASON = 0,
45  _URC_FOREIGN_EXCEPTION_CAUGHT = 1,
46
47  _URC_FATAL_PHASE2_ERROR = 2,
48  _URC_FATAL_PHASE1_ERROR = 3,
49  _URC_NORMAL_STOP = 4,
50
51  _URC_END_OF_STACK = 5,
52  _URC_HANDLER_FOUND = 6,
53  _URC_INSTALL_CONTEXT = 7,
54  _URC_CONTINUE_UNWIND = 8
55} _Unwind_Reason_Code;
56
57uintptr_t _Unwind_GetIP(struct _Unwind_Context* context);
58typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context*, void*);
59_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void*);
60
61#pragma GCC visibility pop
62
63#ifdef __cplusplus
64}
65#endif
66
67#endif
68