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recover from exception on iOS and macOS using signals and log the stacktrace

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This commit is contained in:
omigamedev
2018-10-04 15:26:18 +02:00
parent f45eefe433
commit 55dbab498f
7 changed files with 53 additions and 64 deletions
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45
src/objc_utils.cpp
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@@ -1,12 +1,12 @@
#include "pch.h"
#include "objc_utils.h"
#include "log.h"
#include "app.h"
#include <atomic>
#ifdef __OBJC__
@implementation PathWithModDate
@end
@implementation ObjcUtils
+ (NSArray*)getFilesAtPathSortedByModificationDate:(NSString*)folderPath
{
@@ -34,3 +34,42 @@
}
@end
#endif
std::string base_address;
std::atomic_flag handler_executed;
void exception_handler(NSException *exception)
{
if (handler_executed.test_and_set())
exit(0);
LOG("exception %s\n", [[exception name] cStringUsingEncoding:NSUTF8StringEncoding]);
NSString* callstack = [[NSThread callStackSymbols] componentsJoinedByString:@"\n"];
LOG("base:\n%s\ncallstack:\n%s", base_address.c_str(), [callstack cStringUsingEncoding:NSUTF8StringEncoding]);
if (App::I.canvas && App::I.canvas->m_canvas)
App::I.canvas->m_canvas->project_save_thread(App::I.data_path + "/recovery.ppi");
exit(0);
}
static void signal_handler (int signo) {
if (handler_executed.test_and_set())
exit(0);
LOG("signal %d\n", signo);
NSString* callstack = [[NSThread callStackSymbols] componentsJoinedByString:@"\n"];
LOG("base:\n%s\ncallstack:\n%s", base_address.c_str(), [callstack cStringUsingEncoding:NSUTF8StringEncoding]);
if (App::I.canvas && App::I.canvas->m_canvas)
App::I.canvas->m_canvas->project_save_thread(App::I.data_path + "/recovery.ppi");
exit(0);
}
void install_global_handlers()
{
NSString* callstack = [[NSThread callStackSymbols] componentsJoinedByString:@"\n"];
base_address = [callstack cStringUsingEncoding:NSUTF8StringEncoding];
NSSetUncaughtExceptionHandler(exception_handler);
signal(SIGABRT, signal_handler);
signal(SIGILL, signal_handler);
signal(SIGSEGV, signal_handler);
signal(SIGFPE, signal_handler);
signal(SIGBUS, signal_handler);
signal(SIGPIPE, signal_handler);
}