void OnException(int signo)
{
if (signo == SIGCHLD)
return;
#define WRITE_STRING_LEN(STR, LEN) \
do { \
write(STDERR_FILENO, (STR), (LEN)); \
if (fd) \
write(fd, (STR), (LEN)); \
} while(0)
#define WRITE_STRING(STR) \
WRITE_STRING_LEN(STR, (sizeof(STR) - sizeof(STR[0])))
#define WRITE_BUFFER(BUFFER) \
WRITE_STRING_LEN((BUFFER).buffer, (BUFFER).offset)
MinimalBuffer buffer;
int fd = 0;
if (crashlog && (signo == SIGSEGV || signo == SIGABRT || signo == SIGKILL))
fd = open(crashlog, O_WRONLY | O_CREAT | O_TRUNC, 0644);
/* print signal info */
BufferReset(&buffer);
BufferAppendUInt64(&buffer, signo, 10);
WRITE_STRING("=========================\n");
WRITE_STRING("FCITX " VERSION " -- Get Signal No.: ");
WRITE_BUFFER(buffer);
WRITE_STRING("\n");
/* print time info */
time_t t = time(NULL);
BufferReset(&buffer);
BufferAppendUInt64(&buffer, t, 10);
WRITE_STRING("Date: try \"date -d @");
WRITE_BUFFER(buffer);
WRITE_STRING("\" if you are using GNU date ***\n");
/* print process info */
BufferReset(&buffer);
BufferAppendUInt64(&buffer, getpid(), 10);
WRITE_STRING("ProcessID: ");
WRITE_BUFFER(buffer);
WRITE_STRING("\n");
#if defined(ENABLE_BACKTRACE)
#define BACKTRACE_SIZE 32
void *array[BACKTRACE_SIZE] = {NULL, };
int size = backtrace(array, BACKTRACE_SIZE);
backtrace_symbols_fd(array, size, STDERR_FILENO);
if (fd)
backtrace_symbols_fd(array, size, fd);
#endif
if (fd)
close(fd);
switch (signo) {
case SIGKILL:
break;
case SIGABRT:
case SIGSEGV:
case SIGBUS:
case SIGILL:
case SIGFPE:
exit(1);
break;
default:
{
if (!instance || !instance->initialized) {
exit(1);
break;
}
uint8_t sig = 0;
if (signo < 0xff)
sig = (uint8_t)(signo & 0xff);
write(selfpipe[1], &sig, 1);
signal(signo, OnException);
}
break;
}
}
void OnException(int signo)
{
if (signo == SIGCHLD)
return;
MinimalBuffer buffer;
int fd = -1;
if (crashlog && (signo == SIGSEGV || signo == SIGABRT))
fd = open(crashlog, O_WRONLY | O_CREAT | O_TRUNC, 0644);
/* print signal info */
BufferReset(&buffer);
BufferAppendUInt64(&buffer, signo, 10);
_write_string(fd, "=========================\n");
_write_string(fd, "FCITX " VERSION " -- Get Signal No.: ");
_write_buffer(fd, &buffer);
_write_string(fd, "\n");
/* print time info */
time_t t = time(NULL);
BufferReset(&buffer);
BufferAppendUInt64(&buffer, t, 10);
_write_string(fd, "Date: try \"date -d @");
_write_buffer(fd, &buffer);
_write_string(fd, "\" if you are using GNU date ***\n");
/* print process info */
BufferReset(&buffer);
BufferAppendUInt64(&buffer, getpid(), 10);
_write_string(fd, "ProcessID: ");
_write_buffer(fd, &buffer);
_write_string(fd, "\n");
#if defined(ENABLE_BACKTRACE)
#define BACKTRACE_SIZE 32
void *array[BACKTRACE_SIZE] = { NULL, };
int size = backtrace(array, BACKTRACE_SIZE);
backtrace_symbols_fd(array, size, STDERR_FILENO);
if (fd >= 0)
backtrace_symbols_fd(array, size, fd);
#endif
if (fd >= 0)
close(fd);
switch (signo) {
case SIGABRT:
case SIGSEGV:
case SIGBUS:
case SIGILL:
case SIGFPE:
exit(1);
break;
default:
{
if (!instance || !instance->initialized) {
exit(1);
break;
}
uint8_t sig = 0;
if (signo < 0xff)
sig = (uint8_t)(signo & 0xff);
write(selfpipe[1], &sig, 1);
signal(signo, OnException);
}
break;
}
}
