Merge "[MTE] warn about async crashes being imprecise" (3d118907) · Commits · e / os / android_system_core

debuggerd/libdebuggerd/tombstone_proto_to_text.cpp

+9 −0

Original line number	Diff line number	Diff line
		@@ -316,6 +316,7 @@ static void print_main_thread(CallbackType callback, const Tombstone& tombstone,
		StringPrintf(" from pid %d, uid %d", signal_info.sender_pid(), signal_info.sender_uid());
		}

		bool is_async_mte_crash = false;
		if (!tombstone.has_signal_info()) {
		CBL("signal information missing");
		} else {
		@@ -329,6 +330,9 @@ static void print_main_thread(CallbackType callback, const Tombstone& tombstone,
		CBL("signal %d (%s), code %d (%s%s), fault addr %s", signal_info.number(),
		signal_info.name().c_str(), signal_info.code(), signal_info.code_name().c_str(),
		sender_desc.c_str(), fault_addr_desc.c_str());
		#ifdef SEGV_MTEAERR
		is_async_mte_crash = signal_info.number() == SIGSEGV && signal_info.code() == SEGV_MTEAERR;
		#endif
		}

		if (tombstone.causes_size() == 1) {
		@@ -340,6 +344,11 @@ static void print_main_thread(CallbackType callback, const Tombstone& tombstone,
		}

		print_thread_registers(callback, tombstone, thread, true);
		if (is_async_mte_crash) {
		CBL("Note: This crash is a delayed async MTE crash. Memory corruption has occurred");
		CBL(" in this process. The stack trace below is the first system call or context");
		CBL(" switch that was executed after the memory corruption happened.");
		}
		print_thread_backtrace(callback, tombstone, thread, true);

		if (tombstone.causes_size() > 1) {