kernel: use per-thread signal stacks for guest stack faults

src/kernel/pthread.cpp

@@ -4,6 +4,7 @@
 #include "common/common.h"
 #include "common/dateTime.h"
 #include "common/emulatorConfig.h"
+#include "common/hostException.h"
 #include "common/logging/log.h"
 #include "common/singleton.h"
 #include "common/stringUtils.h"
@@ -1061,6 +1062,12 @@ void PthreadDeleteStaticObjects(Loader::Program* program) {
 void PthreadInitSelfForMainThread() {
 	EXIT_IF(g_pthread_self != nullptr);
 
+#if KYTY_PLATFORM == KYTY_PLATFORM_LINUX
+	if (!Common::HostException::InitializeThreadSignalStack()) {
+		EXIT("Failed to initialize the thread signal stack\n");
+	}
+#endif
+
 	g_pthread_self = new PthreadPrivate {};
 	PthreadAttrInit(&g_pthread_self->attr);
 	UpdateCurrentThreadStackAttr(&g_pthread_self->attr);
@@ -3382,6 +3389,13 @@ static void CleanupThread(void* arg) {
 }
 
 static void* RunThread(void* arg) {
+
+#if KYTY_PLATFORM == KYTY_PLATFORM_LINUX
+	if (!Common::HostException::InitializeThreadSignalStack()) {
+		EXIT("Failed to initialize the thread signal stack\n");
+	}
+#endif
+
 	auto* thread = static_cast<Pthread>(arg);
 	void* ret    = nullptr;