Nikita Shakarun nikita36078

This is a mini-tutorial of sorts for getting started with gdb on the Switch, with the target audience being people who want to mod and/or reverse games, with no prerequisite knowledge of gdb. The goal will be to walk you through some of the basic workflows needed to use a debugger on the Switch, while being brief enough for skimming for when you forget things.

If some part is unclear, your OS doesn't have install instructions, or you feel part of your workflow should be added here, feel free to comment any additions.

(If you only need a quick reference Jump to the Appendix)

Installing GDB

First off you'll need a version of GDB compatible with aarch64. This can be obtained via either a distribution of

System directories

Method	Result
Environment.getDataDirectory()	/data
Environment.getDownloadCacheDirectory()	/cache
Environment.getRootDirectory()	/system

External storage directories

	ECHO HKEY_CURRENT_USER\Software\Nokia\Product Registration [1 8] > _ACL.txt
	REGINI _ACL.txt
	REG DELETE "HKCU\Software\Nokia\Product Registration" /f
	DEL _ACL.txt
	PAUSE

	import java.util.Set;
	import java.util.concurrent.ConcurrentHashMap;

	public class HelloCovariance {
	public static void main(String[] args) {
	ConcurrentHashMap<String, String> properties = new ConcurrentHashMap<>();
	Set<String> keySet = properties.keySet();
	}
	}

	// Usage:
	// AudioTrack tone = generateTone(440, 250);
	// tone.play();
	//
	private AudioTrack generateTone(double freqHz, int durationMs)
	{
	int count = (int)(44100.0 * 2.0 * (durationMs / 1000.0)) & ~1;
	short[] samples = new short[count];
	for(int i = 0; i < count; i += 2){
	short sample = (short)(Math.sin(2 * Math.PI * i / (44100.0 / freqHz)) * 0x7FFF);