unwind.h revision f18a87b1ce1be5ccc3b6b3dbd4f15374710e237b
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 26f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin#if __has_include_next(<unwind.h>) 27f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin/* Darwin and libunwind provide an unwind.h. If that's available, use 28f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin * it. libunwind wraps some of its definitions in #ifdef _GNU_SOURCE, 29f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin * so define that around the include.*/ 30f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# ifndef _GNU_SOURCE 31f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# define _SHOULD_UNDEFINE_GNU_SOURCE 32f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# define _GNU_SOURCE 33f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# endif 34f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# include_next <unwind.h> 35f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# ifdef _SHOULD_UNDEFINE_GNU_SOURCE 36f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# undef _GNU_SOURCE 37f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# undef _SHOULD_UNDEFINE_GNU_SOURCE 38f18a87b1ce1be5ccc3b6b3dbd4f15374710e237bJeffrey Yasskin# endif 39d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#else 40d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 41d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#include <stdint.h> 42d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 43d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#ifdef __cplusplus 44d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolaextern "C" { 45d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#endif 46d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 479b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola/* It is a bit strange for a header to play with the visibility of the 489b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola symbols it declares, but this matches gcc's behavior and some programs 499b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola depend on it */ 509b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola#pragma GCC visibility push(default) 519b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola 52d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolastruct _Unwind_Context; 53d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolatypedef enum { 54d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_NO_REASON = 0, 55d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_FOREIGN_EXCEPTION_CAUGHT = 1, 56d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 57d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_FATAL_PHASE2_ERROR = 2, 58d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_FATAL_PHASE1_ERROR = 3, 59d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_NORMAL_STOP = 4, 60d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 61d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_END_OF_STACK = 5, 62d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_HANDLER_FOUND = 6, 63d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_INSTALL_CONTEXT = 7, 64d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola _URC_CONTINUE_UNWIND = 8 65d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola} _Unwind_Reason_Code; 66d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 67f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 68f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov#ifdef __arm__ 69f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 70f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanovtypedef enum { 71f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_CORE = 0, /* integer register */ 72f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_VFP = 1, /* vfp */ 73f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_WMMXD = 3, /* Intel WMMX data register */ 74f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSC_WMMXC = 4 /* Intel WMMX control register */ 75f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov} _Unwind_VRS_RegClass; 76f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 77f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanovtypedef enum { 78f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_UINT32 = 0, 79f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_VFPX = 1, 80f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_UINT64 = 3, 81f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_FLOAT = 4, 82f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSD_DOUBLE = 5 83f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov} _Unwind_VRS_DataRepresentation; 84f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 85f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanovtypedef enum { 86f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSR_OK = 0, 87f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSR_NOT_IMPLEMENTED = 1, 88f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _UVRSR_FAILED = 2 89f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov} _Unwind_VRS_Result; 90f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 91f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov_Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *context, 92f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _Unwind_VRS_RegClass regclass, 93f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov uint32_t regno, 94f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov _Unwind_VRS_DataRepresentation representation, 95f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov void *valuep); 96f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 97f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov#else 98f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 99d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolauintptr_t _Unwind_GetIP(struct _Unwind_Context* context); 100f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 101f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov#endif 102f5f18bfde0e46c154cf0207c895f917d0b50d53fEvgeniy Stepanov 103d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindolatypedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context*, void*); 104d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola_Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void*); 105d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 1069b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola#pragma GCC visibility pop 1079b7568da31b0dc97e15253391cb100e9958d3d78Rafael Espindola 108d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#ifdef __cplusplus 109d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola} 110d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#endif 111d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola 112d85c1e9800213d2a8750215f6980ae67411cac72Rafael Espindola#endif 113