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Posix/Linux: Add setting to disable coredumps

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goeiecool9999 2022-09-27 13:58:50 +02:00 • committed by GitHub
parent 35afb99c99
commit 6ecc4be0da
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4 changed files with 102 additions and 22 deletions
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77
src/Common/ExceptionHandler/ExceptionHandler_posix.cpp
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@ -1,36 +1,73 @@
#include <signal.h>
#include <execinfo.h>
#include <string.h>
void handler_SIGSEGV(int sig)
#include "config/CemuConfig.h"
// handle signals that would dump core, print stacktrace and then dump depending on config
void handlerDumpingSignal(int sig)
{
printf("SIGSEGV!\n");
char* sigName = strsignal(sig);
if (sigName)
{
printf("%s!\n", sigName);
}
else
{
// should never be the case
printf("Unknown core dumping signal!\n");
}
void *array[32];
size_t size;
void *array[32];
size_t size;
// get void*'s for all entries on the stack
size = backtrace(array, 32);
// get void*'s for all entries on the stack
size = backtrace(array, 32);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, STDERR_FILENO);
exit(1);
// print out all the frames to stderr
fprintf(stderr, "Error: signal %d:\n", sig);
backtrace_symbols_fd(array, size, STDERR_FILENO);
if (GetConfig().crash_dump == CrashDump::Enabled)
{
// reset signal handler to default and re-raise signal to dump core
signal(sig, SIG_DFL);
raise(sig);
return;
}
// exit process ignoring all issues
_Exit(1);
}
void handler_SIGINT(int sig)
{
/*
* Received when pressing CTRL + C in a console
* Ideally should be exiting cleanly after saving settings but currently
* there's no clean exit pathway (at least on linux) and exiting the app
* by any mean ends up with a SIGABRT from the standard library destroying
* threads.
*/
_Exit(0);
/*
* Received when pressing CTRL + C in a console
* Ideally should be exiting cleanly after saving settings but currently
* there's no clean exit pathway (at least on linux) and exiting the app
* by any mean ends up with a SIGABRT from the standard library destroying
* threads.
*/
_Exit(0);
}
void ExceptionHandler_init()
{
signal(SIGSEGV, handler_SIGSEGV);
signal(SIGINT, handler_SIGINT);
struct sigaction action;
action.sa_flags = 0;
sigfillset(&action.sa_mask); // don't allow signals to be interrupted
action.sa_handler = handler_SIGINT;
sigaction(SIGINT, &action, nullptr);
action.sa_handler = handlerDumpingSignal;
sigaction(SIGABRT, &action, nullptr);
sigaction(SIGBUS, &action, nullptr);
sigaction(SIGFPE, &action, nullptr);
sigaction(SIGILL, &action, nullptr);
sigaction(SIGIOT, &action, nullptr);
sigaction(SIGQUIT, &action, nullptr);
sigaction(SIGSEGV, &action, nullptr);
sigaction(SIGSYS, &action, nullptr);
sigaction(SIGTRAP, &action, nullptr);
}