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Paul 2026-03-22 21:40:16 +03:00
parent bd725f0bbe
commit 7565019dc9
1 changed files with 23 additions and 0 deletions
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src/main.cpp
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@ -8,6 +8,8 @@
#include <SDL2/SDL.h> #include <SDL2/SDL.h>
#ifdef __linux__ #ifdef __linux__
#include <X11/Xlib.h> #include <X11/Xlib.h>
#include <execinfo.h>
#include <unistd.h>
// Keep a persistent X11 connection for emergency mouse release in signal handlers. // Keep a persistent X11 connection for emergency mouse release in signal handlers.
// XOpenDisplay inside a signal handler is unreliable, so we open it once at startup. // XOpenDisplay inside a signal handler is unreliable, so we open it once at startup.
@ -26,6 +28,27 @@ static void releaseMouseGrab() {}
static void crashHandler(int sig) { static void crashHandler(int sig) {
releaseMouseGrab(); releaseMouseGrab();
#ifdef __linux__
// Dump backtrace to debug log
{
void* frames[64];
int n = backtrace(frames, 64);
const char* sigName = (sig == SIGSEGV) ? "SIGSEGV" :
(sig == SIGABRT) ? "SIGABRT" :
(sig == SIGFPE) ? "SIGFPE" : "UNKNOWN";
// Write to stderr and to the debug log file
fprintf(stderr, "\n=== CRASH: signal %s (%d) ===\n", sigName, sig);
backtrace_symbols_fd(frames, n, STDERR_FILENO);
FILE* f = fopen("/tmp/wowee_debug.log", "a");
if (f) {
fprintf(f, "\n=== CRASH: signal %s (%d) ===\n", sigName, sig);
fflush(f);
// Also write backtrace to the log file fd
backtrace_symbols_fd(frames, n, fileno(f));
fclose(f);
}
}
#endif
std::signal(sig, SIG_DFL); std::signal(sig, SIG_DFL);
std::raise(sig); std::raise(sig);
} }