1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
#include "posixcrashhandler.h"
#ifndef _WIN32
#include <execinfo.h>
#include <errno.h>
#include <dlfcn.h>
#include <cxxabi.h>
#include <cstdio>
#include <cstdlib>
#include <signal.h>
#include <cstring>
#include <cstdint>
#include <sstream>
#include <memory>
#include "../defines.h"
#include "../common/common.h"
#define KILOBYTE 1024
#define DEMANGLE_MEMORY_SIZE (10*(KILOBYTE))
#define STACK_MEMORY_SIZE (90*(KILOBYTE))
namespace Debug {
struct FreeDeleter {
void operator()(void* ptr) const {
free(ptr);
}
};
char *fake_alloc(char **memory, size_t size) {
char *allocated = *memory;
char *last = allocated + size;
*last = '\0';
*memory += size + 1;
return allocated;
}
void chilltrace(const char * const stackEntry) {
if (stackEntry) {
fputs(stackEntry,stderr);
}
}
void posixSignalHandler( int signum, siginfo_t* si, void* ucontext ) {
(void)si;
(void)ucontext;
auto &handler = PosixCrashHandler::getInstance();
handler.handleCrash();
// If you caught one of the above signals, it is likely you just
// want to quit your program right now.
//exit( signum );
std::_Exit(CHILLOUT_EXIT_CODE);
}
PosixCrashHandler::PosixCrashHandler():
m_stackMemory(nullptr),
m_demangleMemory(nullptr)
{
m_stackMemory = (char*)malloc(STACK_MEMORY_SIZE);
memset(&m_stackMemory[0], 0, STACK_MEMORY_SIZE);
m_demangleMemory = (char*)malloc(DEMANGLE_MEMORY_SIZE);
memset(&m_demangleMemory[0], 0, DEMANGLE_MEMORY_SIZE);
m_backtraceCallback = chilltrace;
}
PosixCrashHandler::~PosixCrashHandler() {
free(m_stackMemory);
free(m_demangleMemory);
}
void PosixCrashHandler::setup(const std::string &appName, const std::string &crashDirPath) {
struct sigaction sa;
sa.sa_sigaction = posixSignalHandler;
sigemptyset( &sa.sa_mask );
#ifdef __APPLE__
/* for some reason we backtrace() doesn't work on osx
when we use an alternate stack */
sa.sa_flags = SA_SIGINFO;
#else
sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
#endif
sigaction( SIGABRT, &sa, NULL );
sigaction( SIGSEGV, &sa, NULL );
sigaction( SIGBUS, &sa, NULL );
sigaction( SIGILL, &sa, NULL );
sigaction( SIGFPE, &sa, NULL );
sigaction( SIGPIPE, &sa, NULL );
sigaction( SIGTERM, &sa, NULL );
if (!crashDirPath.empty()) {
std::string path = crashDirPath;
while ((path.size() > 1) &&
(path[path.size() - 1] == '/')) {
path.erase(path.size() - 1);
}
std::stringstream s;
s << path << "/" << appName << "_";
formatDateTime(s, now(), CHILLOUT_DATETIME);
s << ".bktr";
m_backtraceFilePath = s.str();
}
}
void PosixCrashHandler::teardown() {
struct sigaction sa;
sigset_t mysigset;
sigemptyset(&mysigset);
sa.sa_handler = SIG_DFL;
sa.sa_mask = mysigset;
sa.sa_flags = 0;
sigaction( SIGABRT, &sa, NULL );
sigaction( SIGSEGV, &sa, NULL );
sigaction( SIGBUS, &sa, NULL );
sigaction( SIGILL, &sa, NULL );
sigaction( SIGFPE, &sa, NULL );
sigaction( SIGPIPE, &sa, NULL );
sigaction( SIGTERM, &sa, NULL );
}
void PosixCrashHandler::handleCrash() {
if (m_crashCallback) {
m_crashCallback();
}
}
void PosixCrashHandler::setCrashCallback(const std::function<void()> &callback) {
m_crashCallback = callback;
}
void PosixCrashHandler::setBacktraceCallback(const std::function<void(const char * const)> &callback) {
m_backtraceCallback = callback;
}
}
#endif
|
