unixcrashhandler.cpp

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Alex Alex Commit Client Upload Part 2 19/10/2026 00:06
1/*
2 * Copyright (c) 2010-2016 OTClient <https://github.com/edubart/otclient>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20 * THE SOFTWARE.
21 */
22
23#if !defined(WIN32) && defined(CRASH_HANDLER) && !defined(__EMSCRIPTEN__)
24
25#include "crashhandler.h"
26#include <framework/global.h>
27#include <framework/core/application.h>
28
29#ifndef __USE_GNU
30#define __USE_GNU
31#endif
32
33#include <execinfo.h>
34#include <ucontext.h>
35#include <signal.h>
36
37#define MAX_BACKTRACE_DEPTH 128
38#define DEMANGLE_BACKTRACE_SYMBOLS
39
40void crashHandler(int signum, siginfo_t* info, void* secret)
41{
42 g_logger.error("Application crashed");
43
44 std::stringstream ss;
45 ss << stdext::format("app name: %s\n", g_app.getName());
46 ss << stdext::format("app version: %s\n", g_app.getVersion());
47 ss << stdext::format("build compiler: %s\n", BUILD_COMPILER);
48 ss << stdext::format("build date: %s\n", __DATE__);
49 ss << stdext::format("build type: %s\n", BUILD_TYPE);
50 ss << stdext::format("build revision: %s (%s)\n", BUILD_REVISION, BUILD_COMMIT);
51 ss << stdext::format("crash date: %s\n", stdext::date_time_string());
52 ss.flags(std::ios::hex | std::ios::showbase);
53
54 ucontext_t context = *(ucontext_t*)secret;
55#if __WORDSIZE == 64
56 ss << " at rip = " << context.uc_mcontext.gregs[REG_RIP] << std::endl;
57 ss << " rax = " << context.uc_mcontext.gregs[REG_RAX] << std::endl;
58 ss << " rbx = " << context.uc_mcontext.gregs[REG_RBX] << std::endl;
59 ss << " rcx = " << context.uc_mcontext.gregs[REG_RCX] << std::endl;
60 ss << " rdx = " << context.uc_mcontext.gregs[REG_RDX] << std::endl;
61 ss << " rsi = " << context.uc_mcontext.gregs[REG_RSI] << std::endl;
62 ss << " rdi = " << context.uc_mcontext.gregs[REG_RDI] << std::endl;
63 ss << " rbp = " << context.uc_mcontext.gregs[REG_RBP] << std::endl;
64 ss << " rsp = " << context.uc_mcontext.gregs[REG_RSP] << std::endl;
65 ss << " efl = " << context.uc_mcontext.gregs[REG_EFL] << std::endl;
66 ss << std::endl;
67#elif defined(REG_EIP)
68 ss << " at eip = " << context.uc_mcontext.gregs[REG_EIP] << std::endl;
69 ss << " eax = " << context.uc_mcontext.gregs[REG_EAX] << std::endl;
70 ss << " ebx = " << context.uc_mcontext.gregs[REG_EBX] << std::endl;
71 ss << " ecx = " << context.uc_mcontext.gregs[REG_ECX] << std::endl;
72 ss << " edx = " << context.uc_mcontext.gregs[REG_EDX] << std::endl;
73 ss << " esi = " << context.uc_mcontext.gregs[REG_ESI] << std::endl;
74 ss << " edi = " << context.uc_mcontext.gregs[REG_EDI] << std::endl;
75 ss << " ebp = " << context.uc_mcontext.gregs[REG_EBP] << std::endl;
76 ss << " esp = " << context.uc_mcontext.gregs[REG_ESP] << std::endl;
77 ss << " efl = " << context.uc_mcontext.gregs[REG_EFL] << std::endl;
78 ss << std::endl;
79#endif
80
81 ss.flags(std::ios::dec);
82 ss << " backtrace:" << std::endl;
83
84 void* buffer[MAX_BACKTRACE_DEPTH];
85 int numLevels = backtrace(buffer, MAX_BACKTRACE_DEPTH);
86 char **tracebackBuffer = backtrace_symbols(buffer, numLevels);
87 if(tracebackBuffer) {
88 for(int i = 2; i < numLevels; i++) {
89 std::string line = tracebackBuffer[i];
90 if(line.find("__libc_start_main") != std::string::npos)
91 break;
92#ifdef DEMANGLE_BACKTRACE_SYMBOLS
93 std::size_t demanglePos = line.find("(_Z");
94 if(demanglePos != std::string::npos) {
95 demanglePos++;
96 int len = std::min(line.find_first_of("+", demanglePos), line.find_first_of(")", demanglePos)) - demanglePos;
97 std::string funcName = line.substr(demanglePos, len);
98 line.replace(demanglePos, len, stdext::demangle_name(funcName.c_str()));
99 }
100#endif
101 ss << " " << i-1 << ": " << line << std::endl;
102 }
103 free(tracebackBuffer);
104 }
105
106 g_logger.info(ss.str());
107
108 std::string fileName = "crash_report.log";
109 std::ofstream fout(fileName.c_str(), std::ios::out | std::ios::app);
110 if(fout.is_open() && fout.good()) {
111 fout << "== application crashed\n";
112 fout << ss.str();
113 fout << "\n";
114 fout.close();
115 g_logger.info(stdext::format("Crash report saved to file %s", fileName));
116 } else
117 g_logger.error("Failed to save crash report!");
118
119 signal(SIGILL, SIG_DFL);
120 signal(SIGSEGV, SIG_DFL);
121 signal(SIGFPE, SIG_DFL);
122 signal(SIGABRT, SIG_DFL);
123}
124
125void installCrashHandler()
126{
127 struct sigaction sa;
128 sa.sa_sigaction = &crashHandler;
129 sigemptyset (&sa.sa_mask);
130 sa.sa_flags = SA_RESTART | SA_SIGINFO;
131
132 sigaction(SIGILL, &sa, NULL); // illegal instruction
133 sigaction(SIGSEGV, &sa, NULL); // segmentation fault
134 sigaction(SIGFPE, &sa, NULL); // floating-point exception
135 sigaction(SIGABRT, &sa, NULL); // process aborted (asserts)
136}
137
138void uninstallCrashHandler()
139{
140
141}
142
143#endif
144
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