Moved log backtrace to arm_interface.cpp. Added printing of error code to fatal

src/core/arm/arm_interface.cpp

@@ -0,0 +1,26 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "arm_interface.h"
+#include "common/common_types.h"
+#include "common/logging/log.h"
+#include "core/memory.h"
+
+namespace Core {
+void ARM_Interface::LogBacktrace() {
+    VAddr fp = GetReg(29);
+    VAddr lr = GetReg(30);
+    VAddr sp = GetReg(13);
+    VAddr pc = GetPC();
+    LOG_ERROR(Core_ARM, "Backtrace, sp={:016X}, pc={:016X}", sp, pc);
+    for (;;) {
+        LOG_ERROR(Core_ARM, "{:016X}", lr);
+        if (!fp) {
+            break;
+        }
+        lr = Memory::Read64(fp + 8) - 4;
+        fp = Memory::Read64(fp);
+    }
+}
+}; // namespace Core