├── README.md
├── LICENSE
└── index.h


/README.md:
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1 | # SYNOPSIS
2 | Quick/Simple stacktrace hack.
3 | 
4 | # MOTIVATION
5 | [`This`](https://medium.com/@hij1nx/how-to-make-debugging-c-errors-easier-7824922a8cc6) blog post.
6 | 
7 | 


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/LICENSE:
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 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2015 Paolo Fragomeni
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in
13 | all copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21 | THE SOFTWARE.
22 | 


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/index.h:
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 1 | #ifndef STACK_TRACE_H
 2 | #define STACK_TRACE_H
 3 | 
 4 | #include <iostream>
 5 | #include <signal.h>
 6 | #include <string>
 7 | #include <dlfcn.h>
 8 | #include <cxxabi.h>
 9 | #include <regex>
10 | #include <execinfo.h>
11 | 
12 | struct Trace {
13 | 
14 |   struct sigaction sa;
15 | 
16 |   Trace() {
17 | 
18 |     using namespace std;
19 |     auto backtrace_handler = [](int sig) {
20 | 
21 |       string white = "\033[1;37m";
22 |       string blue = "\033[1;34m";
23 | 
24 |       cout << white << "Error: ";
25 | 
26 |       switch (sig) {
27 |         case SIGSEGV:
28 |           cout << "Segmentation fault" << endl;
29 |           break;
30 |         case SIGFPE:
31 |           cout << "Floating point exception" << endl;
32 |           break;
33 |         case SIGBUS:
34 |           cout << "An invalid pointer was dereferenced" << endl;
35 |           break;
36 |       }
37 | 
38 |       void* callstack[128];
39 |       size_t size = backtrace(callstack, 128);
40 |       char** symbols = backtrace_symbols(callstack, size);
41 | 
42 |       for (size_t i = 0; i < size; i++) {
43 | 
44 |         Dl_info info;
45 |         int res = dladdr(callstack[i], &info);
46 | 
47 |         string s = symbols[i];
48 |         int f = s.find_last_of(" + ");
49 |         s = s.substr(0, f - 2);
50 |         f = s.find_last_of(" ");
51 |         s = s.substr(f + 1, s.size());
52 | 
53 |         int status = 0;
54 |         char* name = abi::__cxa_demangle(s.c_str(), NULL, NULL, &status);
55 | 
56 |         if (status == 0 && string(name).find("Trace::Trace()") == string::npos) {
57 |           cout
58 |             << white << "  at " << blue << name
59 |             << white << " in " << info.dli_fname << endl;
60 |         }
61 |       }
62 |       abort();
63 |     };
64 | 
65 |     sa.sa_handler = backtrace_handler;
66 |     sigemptyset(&sa.sa_mask);
67 |     sa.sa_flags = SA_RESTART;
68 |     sigaction(SIGFPE, &sa, NULL);
69 |     sigaction(SIGSEGV, &sa, NULL);
70 |     sigaction(SIGBUS, &sa, NULL);
71 |   }
72 | } trace;
73 | 
74 | #endif
75 |  
76 | 


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