TuxSH

3DS CFW:

Switch CFW:

GetLastThreadInfo returns the last thread of the process that was scheduled on the current core.
A thread holds a reference to itself; only a thread that has exited can be destroyed

Two possibilities arise:

the thread exited before the svc, in which case it clears cctx->scheduler->previousScheduledThread, and that field will never point to the exiting thread. This is safe.
the svc executes first: it fetches the last thread ptr & info with all interrupts masked. Therefore, the thread executing the svc will not be switched and no thread on the same core is going to be terminated/destroyed, this is also safe.

	import os
	import requests
	import zipfile
	import io
	import sys

	# Global variable containing repositories and settings for download
	REPOSITORIES = [
	{
	"repo": "LumaTeam/Luma3DS",

	/* This file was generated by the Hex-Rays decompiler.
	Copyright (c) 2007-2020 Hex-Rays <[email protected]>

	Detected compiler: GNU C++
	*/

	#include <defs.h>


	//-------------------------------------------------------------------------

	void CreateKernelDiagnosticTable(void)
	{
	KernelDiagnosticTable *diagTable; // r0
	KPageManager **v1; // r3
	KernelDiagnosticTableSlabHeapEntry *v2; // r1
	int sp; // [sp+0h] [bp-10h]

	diagTable = (KernelDiagnosticTable *)((unsigned int)&sp >> 12 << 12);
	diagTable->mainKernelRegionStart = 0x1FF80000;
	diagTable->mainKernelRegionSize = 0x80000;

	void ModeControlManager::RecaculateSharedTimeOnWakeup(void)
	{
	// [COLLAPSED LOCAL DECLARATIONS. PRESS KEYPAD CTRL-"+" TO EXPAND]

	TimeDateUpdater::RecalculateSharedTime(g_p_timeDateUpdater);
	sub_1026A4(off_10E484, v0, v1, v2); // TODO, has to do with sleep/wakeup and another singleton
	//
	}

	void __fastcall sub_102868(TimeDateUpdater *this)

	# Copyright 2017 Reswitched Team
	#
	# Permission to use, copy, modify, and/or distribute this software for any purpose with or
	# without fee is hereby granted, provided that the above copyright notice and this permission
	# notice appear in all copies.
	#
	# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
	# SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
	# THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
	# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF

	Result __fastcall Kip1::ParseHeader(Kip1 *thisPtr, ProcessCreationInfo a2, bool aslrEnabled)
	{
	Kip1 **v3; // x20
	Kip1 *v4; // x22
	__int64 textOutOffset; // x8
	bool v6; // w21
	ProcessCreationInfo *v7; // x19
	unsigned __int64 v8; // x9
	unsigned __int64 dataOutOffset; // x10
	Result result; // w0