1/* 2Copyright (c) 2003-2006 Hewlett-Packard Development Company, L.P. 3Permission is hereby granted, free of charge, to any person 4obtaining a copy of this software and associated documentation 5files (the "Software"), to deal in the Software without 6restriction, including without limitation the rights to use, 7copy, modify, merge, publish, distribute, sublicense, and/or sell 8copies of the Software, and to permit persons to whom the 9Software is furnished to do so, subject to the following 10conditions: 11 12The above copyright notice and this permission notice shall be 13included in all copies or substantial portions of the Software. 14 15THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 17OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 19HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22OTHER DEALINGS IN THE SOFTWARE. 23*/ 24 25#ifndef __UWX_SELF_INCLUDED 26#define __UWX_SELF_INCLUDED 1 27 28#include <signal.h> 29 30#ifndef __UWX_INCLUDED 31#include "uwx.h" 32#endif /* __UWX_INCLUDED */ 33 34#if defined(__cplusplus) 35#define __EXTERN_C extern "C" 36#else 37#define __EXTERN_C extern 38#endif 39 40struct uwx_self_info; 41 42__EXTERN_C struct uwx_self_info *uwx_self_init_info(struct uwx_env *env); 43 44__EXTERN_C int uwx_self_free_info(struct uwx_self_info *info); 45 46__EXTERN_C int uwx_self_init_context(struct uwx_env *env); 47 48__EXTERN_C int uwx_self_init_from_sigcontext( 49 struct uwx_env *env, 50 struct uwx_self_info *info, 51 ucontext_t *ucontext); 52 53__EXTERN_C int uwx_self_do_context_frame( 54 struct uwx_env *env, 55 struct uwx_self_info *info); 56 57__EXTERN_C int uwx_self_copyin( 58 int request, 59 char *loc, 60 uint64_t rem, 61 int len, 62 intptr_t tok); 63 64__EXTERN_C int uwx_self_lookupip( 65 int request, 66 uint64_t ip, 67 intptr_t tok, 68 uint64_t **resultp); 69 70#define UWX_SELF_ERR_BADABICONTEXT (-101) 71 72#undef __EXTERN_C 73 74#if defined(__cplusplus) 75 76class UnwindExpressSelf : public UnwindExpress { 77 78public: 79 80 UnwindExpressSelf() { 81 info = uwx_self_init_info(env); 82 (void)uwx_register_callbacks(env, (intptr_t)info, 83 uwx_self_copyin, uwx_self_lookupip); 84 } 85 86 ~UnwindExpressSelf() { 87 if (info != 0) 88 uwx_self_free_info(info); 89 info = 0; 90 } 91 92 int init_context() { 93 return uwx_self_init_context(env); 94 } 95 96 int init_context(ucontext_t *ucontext) { 97 return uwx_self_init_from_sigcontext(env, info, ucontext); 98 } 99 100 int do_context_frame() { 101 return uwx_self_do_context_frame(env, info); 102 } 103 104protected: 105 106 struct uwx_self_info *info; 107 108}; 109 110#endif /* __cplusplus */ 111 112#endif /* __UWX_SELF_INCLUDED */ 113