unwind.h revision f5f18bfde0e46c154cf0207c895f917d0b50d53f
1d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola/*===---- unwind.h - Stack unwinding ----------------------------------------=== 2d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * 3d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * Permission is hereby granted, free of charge, to any person obtaining a copy 4d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * of this software and associated documentation files (the "Software"), to deal 5d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * in the Software without restriction, including without limitation the rights 6d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 7d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * copies of the Software, and to permit persons to whom the Software is 8d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * furnished to do so, subject to the following conditions: 9d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * 10d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * The above copyright notice and this permission notice shall be included in 11d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * all copies or substantial portions of the Software. 12d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * 13d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 18d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 19d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * THE SOFTWARE. 20d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola * 21d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola *===-----------------------------------------------------------------------=== 22d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola */ 23d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 24d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola/* See "Data Definitions for libgcc_s" in the Linux Standard Base.*/ 25d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 26f84d560fc73c9177af9081a0edf6726e43ec3a63Joerg Sonnenberger#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ 27f84d560fc73c9177af9081a0edf6726e43ec3a63Joerg Sonnenberger __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1070 28d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola/* Starting in OS X Lion the SDK includes a unwind.h. We should just use it. */ 29d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#include_next <unwind.h> 30d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#else 31d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 32d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#include <stdint.h> 33d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 34d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#ifdef __cplusplus 35d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolaextern "C" { 36d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#endif 37d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 389b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola/* It is a bit strange for a header to play with the visibility of the 399b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola symbols it declares, but this matches gcc's behavior and some programs 409b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola depend on it */ 419b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola#pragma GCC visibility push(default) 429b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola 43d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolastruct _Unwind_Context; 44d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolatypedef enum { 45d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_NO_REASON = 0, 46d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_FOREIGN_EXCEPTION_CAUGHT = 1, 47d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 48d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_FATAL_PHASE2_ERROR = 2, 49d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_FATAL_PHASE1_ERROR = 3, 50d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_NORMAL_STOP = 4, 51d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 52d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_END_OF_STACK = 5, 53d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_HANDLER_FOUND = 6, 54d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_INSTALL_CONTEXT = 7, 55d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_CONTINUE_UNWIND = 8 56d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola} _Unwind_Reason_Code; 57d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 58f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 59f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov#ifdef __arm__ 60f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 61f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanovtypedef enum { 62f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_CORE = 0, /* integer register */ 63f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_VFP = 1, /* vfp */ 64f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_WMMXD = 3, /* Intel WMMX data register */ 65f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_WMMXC = 4 /* Intel WMMX control register */ 66f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov} _Unwind_VRS_RegClass; 67f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 68f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanovtypedef enum { 69f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_UINT32 = 0, 70f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_VFPX = 1, 71f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_UINT64 = 3, 72f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_FLOAT = 4, 73f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_DOUBLE = 5 74f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov} _Unwind_VRS_DataRepresentation; 75f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 76f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanovtypedef enum { 77f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSR_OK = 0, 78f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSR_NOT_IMPLEMENTED = 1, 79f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSR_FAILED = 2 80f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov} _Unwind_VRS_Result; 81f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 82f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov_Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *context, 83f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _Unwind_VRS_RegClass regclass, 84f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov uint32_t regno, 85f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _Unwind_VRS_DataRepresentation representation, 86f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov void *valuep); 87f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 88f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov#else 89f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 90d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolauintptr_t _Unwind_GetIP(struct _Unwind_Context* context); 91f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 92f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov#endif 93f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 94d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolatypedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context*, void*); 95d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void*); 96d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 979b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola#pragma GCC visibility pop 989b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola 99d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#ifdef __cplusplus 100d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola} 101d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#endif 102d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 103d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#endif 104