mirror of
https://github.com/wiiu-env/gdbstub_plugin.git
synced 2024-11-22 03:39:15 +01:00
WIP
This commit is contained in:
parent
5a3bae8616
commit
60a0679699
22
main.py
22
main.py
@ -116,6 +116,7 @@ COMMAND_TOGGLE_BREAKPOINT = 8
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COMMAND_POKE_REGISTERS = 9
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COMMAND_RECEIVE_MESSAGES = 10
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COMMAND_SEND_MESSAGE = 11
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COMMAND_DISASM = 12
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class Debugger:
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def __init__(self):
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@ -157,6 +158,12 @@ class Debugger:
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self.sendall(struct.pack(">II", addr, num))
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data = self.recvall(num)
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return data
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def disasm(self, addr, num):
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self.sendbyte(COMMAND_DISASM)
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self.sendall(struct.pack(">II", addr, num))
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length = struct.unpack(">I", self.recvall(4))[0]
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return self.recvall(length).decode("ascii")
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def write(self, addr, data):
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self.sendbyte(COMMAND_WRITE)
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@ -503,18 +510,11 @@ class DisassemblyWidget(QTextEdit):
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self.updateText()
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self.updateHighlight()
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def updateText(self):
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if debugger.connected:
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blob = debugger.read(self.base, 0x60)
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else:
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blob = b"\x00" * 0x60
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def updateText(self):
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text = ""
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for i in range(24):
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address = self.base + i * 4
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value = struct.unpack_from(">I", blob, i * 4)[0]
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instr = disassemble.disassemble(value, address)
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text += "%08X: %08X %s\n" %(address, value, instr)
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if debugger.connected:
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text = debugger.disasm(self.base, 0x60)
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self.setPlainText(text)
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def updateHighlight(self):
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160
src/debugger.cpp
160
src/debugger.cpp
@ -7,20 +7,27 @@
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#include <coreinit/debug.h>
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#include <coreinit/dynload.h>
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#include <coreinit/exception.h>
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#include <coreinit/interrupts.h>
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#include <coreinit/memory.h>
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#include <coreinit/scheduler.h>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <gx2/context.h>
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#include <malloc.h>
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#include <sysapp/switch.h>
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#include <vpad/input.h>
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#include <stdarg.h>
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#include <string>
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Debugger *debugger;
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bool initDebugState = false;
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bool BreakPoint::isRange(uint32_t addr, uint32_t length) const {
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return address >= addr && address <= addr + length - 1;
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}
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BreakPoint *BreakPointMgr::find(uint32_t addr, bool includeSpecial) {
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BreakPoint *bp = breakpoints.find(addr);
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if (!bp && includeSpecial) {
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@ -280,7 +287,6 @@ bool ExceptionState::isBreakpoint() {
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}
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void ExceptionState::resume() {
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DEBUG_FUNCTION_LINE("OSLoadContext");
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OSLoadContext(&context);
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}
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@ -540,30 +546,26 @@ void Debugger::handleBreakPoint(ExceptionState *state) {
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if (firstTrap) {
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firstTrap = false;
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Screen screen;
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screen.init();
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auto *screen = new Screen;
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Screen::drawText(
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0, 0, "Waiting for debugger connection.\n"
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"Press the home button to continue without debugger.\n"
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"You can still connect while the game is running.");
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Screen::flip();
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delete screen;
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while (!connected) {
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uint32_t buttons = GetInput(VPAD_BUTTON_HOME);
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if (buttons) {
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DEBUG_FUNCTION_LINE("Pressed home");
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state->context.srr0 += 4;
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state->resume();
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}
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}
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}
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DEBUG_FUNCTION_LINE("stepper.handleBreakPoint(state);");
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stepper.handleBreakPoint(state);
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if (!connected) {
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DEBUG_FUNCTION_LINE("if (!connected) {");
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handleFatalCrash(&state->context, state->type);
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}
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@ -671,10 +673,6 @@ void Debugger::cleanup() {
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;
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}
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extern "C" void OSRestoreInterrupts(int state);
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extern "C" void __OSLockScheduler(void *);
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extern "C" void __OSUnlockScheduler(void *);
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extern "C" int OSDisableInterrupts();
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static const char **commandNames = (const char *[]){
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"COMMAND_CLOSE",
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@ -688,15 +686,49 @@ static const char **commandNames = (const char *[]){
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"COMMAND_TOGGLE_BREAKPOINT",
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"COMMAND_POKE_REGISTERS",
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"COMMAND_RECEIVE_MESSAGES",
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"COMMAND_SEND_MESSAGE"};
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"COMMAND_SEND_MESSAGE",
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"COMMAND_DISASM"};
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#define LOG_DISASSEMBLY_SIZE (4096)
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static char
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sDisassemblyBuffer[LOG_DISASSEMBLY_SIZE];
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static uint32_t
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sDisassemblyLength = 0;
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static void
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disassemblyPrintCallback(const char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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sDisassemblyLength += vsprintf(sDisassemblyBuffer + sDisassemblyLength,
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fmt, args);
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sDisassemblyBuffer[sDisassemblyLength] = 0;
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va_end(args);
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}
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void eraseAllSubStr(std::string & mainStr, const std::string & toErase)
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{
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size_t pos = std::string::npos;
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// Search for the substring in string in a loop untill nothing is found
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while ((pos = mainStr.find(toErase) )!= std::string::npos)
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{
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// If found then erase it from string
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mainStr.erase(pos, toErase.length());
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}
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}
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//#define OSIopShell_Command_Disassemble ((void (*)(void*, uint32_t))(0x101C400 + 0x173e0))
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#define __os_printf ((void (*)(char*, ...))(0x101C400 + 0x012e88))
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void Debugger::mainLoop(Client *client) {
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DEBUG_FUNCTION_LINE("About to enter mainLoop while");
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while (!stopRunning) {
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uint8_t cmd;
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if (!client->recvall(&cmd, 1)) return;
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if (cmd <= 11) {
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if (cmd <= 12 && cmd != 10) {
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DEBUG_FUNCTION_LINE("Recieved command %s %d", commandNames[cmd], cmd);
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}
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if (cmd == COMMAND_CLOSE) {
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@ -713,6 +745,50 @@ void Debugger::mainLoop(Client *client) {
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return;
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}
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delete[] buffer;
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} else if (cmd == COMMAND_DISASM) {
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uint32_t addr, length;
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if (!client->recvall(&addr, 4)) return;
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if (!client->recvall(&length, 4)) return;
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char *buffer = new char[0x40];
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auto addrAsPtr = (uint32_t *) (addr & 0xfffffffc);
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DisassemblePPCRange(reinterpret_cast<void *>(addr + 0x20), reinterpret_cast<void *>(addr + length), reinterpret_cast<DisassemblyPrintFn>(__os_printf),OSGetSymbolName,
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static_cast<DisassemblePPCFlags>(0x121));
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for (int i = 0; i < length / 4; i++) {
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DisassemblePPCOpcode(&addrAsPtr[i],
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buffer,
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0x40,
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OSGetSymbolName,
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static_cast<DisassemblePPCFlags>(0x121));
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disassemblyPrintCallback("0x%08x 0x%08x %s\n",&addrAsPtr[i],addrAsPtr[i],buffer);
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}
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delete[] buffer;
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std::string shit(sDisassemblyBuffer);
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eraseAllSubStr(shit, "(null)");
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DEBUG_FUNCTION_LINE("done");
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auto length_ = shit.length() + 1;
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if (!client->sendall(&length_, 4)) {
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sDisassemblyLength = 0;
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return;
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}
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if (!client->sendall(shit.c_str(), length_)) {
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sDisassemblyLength = 0;
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return;
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}
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sDisassemblyLength = 0;
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} else if (cmd == COMMAND_WRITE) {
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uint32_t addr, length;
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if (!client->recvall(&addr, 4)) return;
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@ -733,15 +809,18 @@ void Debugger::mainLoop(Client *client) {
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} else if (cmd == COMMAND_GET_MODULE_NAME) {
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char name[0x40];
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int length = 0x40;
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OSDynLoad_GetModuleName(reinterpret_cast<OSDynLoad_Module>(-1), name, &length);
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if(OSDynLoad_GetModuleName(reinterpret_cast<OSDynLoad_Module>(-1), name, &length) != OS_DYNLOAD_OK){
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strncat(name, "ERROR", sizeof(name) -1);
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}
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length = strlen(name);
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if (!client->sendall(&length, 4)) return;
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if (!client->sendall(name, length)) return;
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} else if (cmd == COMMAND_GET_MODULE_LIST) {
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int num_rpls = OSDynLoad_GetNumberOfRPLs();
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if (num_rpls == 0) {
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return;
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continue;
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}
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std::vector<OSDynLoad_NotifyData> rpls;
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@ -749,7 +828,7 @@ void Debugger::mainLoop(Client *client) {
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bool ret = OSDynLoad_GetRPLInfo(0, num_rpls, rpls.data());
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if (!ret) {
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return;
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continue;
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}
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char buffer[0x1000]; //This should be enough
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@ -784,6 +863,7 @@ void Debugger::mainLoop(Client *client) {
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OSThread *current = ThreadList;
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while (current) {
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const char *name = OSGetThreadName(current);
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OSReport("name %s", name);
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uint32_t namelen = 0;
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if (name) {
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@ -795,7 +875,7 @@ void Debugger::mainLoop(Client *client) {
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}
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int priority = current->basePriority;
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int type = *(uint32_t *) (current->__unk11);
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int type = *((uint32_t *) current->__unk11);
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if (type == 1) {
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priority -= 0x20;
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} else if (type == 2) {
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@ -905,24 +985,20 @@ void Debugger::mainLoop(Client *client) {
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void Debugger::threadFunc() {
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DEBUG_FUNCTION_LINE("Hello from debugger thread :)!");
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OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_DSI, dsiHandler);
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OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_ISI, isiHandler);
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OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_PROGRAM, programHandler);
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DEBUG_FUNCTION_LINE("Callback init done.!");
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prevDsiHandler = OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_DSI, dsiHandler);
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prevIsiHandler = OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_ISI, isiHandler);
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prevProgramHandler = OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_PROGRAM, programHandler);
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Server server;
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Client client;
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DEBUG_FUNCTION_LINE("Set initialized = true");
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initialized = true;
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while (!stopRunning) {
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if (!server.init(Socket::TCP)) continue;
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if (!server.bind(1560)) continue;
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if (!server.accept(&client)) continue;
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DEBUG_FUNCTION_LINE("Accepted a connection");
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connected = true;
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mainLoop(&client);
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DEBUG_FUNCTION_LINE("Lets do some cleanup");
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cleanup();
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connected = false;
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client.close();
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@ -931,55 +1007,55 @@ void Debugger::threadFunc() {
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}
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int Debugger::threadEntry(int argc, const char **argv) {
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DEBUG_FUNCTION_LINE("threadEntry");
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debugger->threadFunc();
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return 0;
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}
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void Debugger::start() {
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initialized = false;
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connected = false;
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firstTrap = true;
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DEBUG_FUNCTION_LINE("OSInitMessageQueue");
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OSInitMessageQueue(&eventQueue, eventMessages, MESSAGE_COUNT);
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DEBUG_FUNCTION_LINE("init breakpoints");
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breakpoints.init();
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DEBUG_FUNCTION_LINE("init exceptions");
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exceptions.init();
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DEBUG_FUNCTION_LINE("init stepper");
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stepper.init();
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DEBUG_FUNCTION_LINE("Alloc thread");
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serverThread = (OSThread *) memalign(0x20, sizeof(OSThread));
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DEBUG_FUNCTION_LINE("Alloc stack");
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serverStack = (char *) memalign(0x20, STACK_SIZE);
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serverStack = (char *) memalign(0x20, STACK_SIZE);
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DEBUG_FUNCTION_LINE("Create thread");
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OSCreateThread(
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serverThread, threadEntry, 0, 0,
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serverStack + STACK_SIZE, STACK_SIZE,
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0, 12);
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DEBUG_FUNCTION_LINE("Set thread name");
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0, OS_THREAD_ATTRIB_AFFINITY_CPU2 | OS_THREAD_ATTRIB_DETACHED);
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OSSetThreadName(serverThread, "Debug Server");
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DEBUG_FUNCTION_LINE("Resume thread");
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OSResumeThread(serverThread);
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while (!initialized) {
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DEBUG_FUNCTION_LINE("Wait for thread init");
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OSSleepTicks(OSMillisecondsToTicks(20));
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}
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initDebugState = true;
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DCFlushRange(&initDebugState, sizeof(initDebugState));
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DEBUG_FUNCTION_LINE("Thread init done! Exit start()");
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}
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Debugger::~Debugger() {
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stopRunning = true;
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DCFlushRange(&stopRunning, sizeof(stopRunning));
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OSJoinThread(serverThread, nullptr);
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free(serverStack);
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serverStack = nullptr;
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free(serverThread);
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serverThread = nullptr;
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initialized = false;
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connected = false;
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firstTrap = true;
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// Restore exceptions.
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OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_DSI, prevDsiHandler);
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OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_ISI, prevIsiHandler);
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OSSetExceptionCallbackEx(OS_EXCEPTION_MODE_GLOBAL_ALL_CORES, OS_EXCEPTION_TYPE_PROGRAM, prevProgramHandler);
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}
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@ -7,6 +7,7 @@
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#include <coreinit/mutex.h>
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#include <coreinit/thread.h>
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#include <coreinit/exception.h>
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#include <cstdint>
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#include <vector>
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@ -233,7 +234,8 @@ private:
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COMMAND_TOGGLE_BREAKPOINT,
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COMMAND_POKE_REGISTERS,
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COMMAND_RECEIVE_MESSAGES,
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COMMAND_SEND_MESSAGE
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COMMAND_SEND_MESSAGE,
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COMMAND_DISASM
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};
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static int threadEntry(int argc, const char **argv);
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@ -269,6 +271,11 @@ private:
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bool initialized{};
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bool connected{};
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bool firstTrap{};
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OSExceptionCallbackFn prevDsiHandler = nullptr;
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OSExceptionCallbackFn prevIsiHandler = nullptr;
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OSExceptionCallbackFn prevProgramHandler = nullptr;
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};
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extern "C" Debugger *debugger;
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extern bool initDebugState;
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|
55
src/main.cpp
55
src/main.cpp
@ -1,28 +1,65 @@
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#include "debugger.h"
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#include "exceptions.h"
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#include "logger.h"
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#include <coreinit/cache.h>
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#include <coreinit/debug.h>
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#include <coreinit/dynload.h>
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#include <coreinit/memorymap.h>
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#include <kernel/kernel.h>
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#include <wups.h>
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OSThread **pThreadList;
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WUPS_PLUGIN_NAME("Debugger");
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WUPS_PLUGIN_DESCRIPTION("FTP Server");
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WUPS_PLUGIN_DESCRIPTION("Wii U Debugger");
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WUPS_PLUGIN_VERSION("0.1");
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WUPS_PLUGIN_AUTHOR("Kinnay");
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WUPS_PLUGIN_AUTHOR("Kinnay, Maschell");
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WUPS_PLUGIN_LICENSE("GPL");
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WUPS_USE_WUT_DEVOPTAB();
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INITIALIZE_PLUGIN() {
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InstallExceptionHandlers();
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/* https://github.com/QuarkTheAwesome/CafeBinPatch/blob/main/src/runtime-patcher.cpp#L58 */
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bool PatchInstruction(void *instr, uint32_t original, uint32_t replacement) {
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uint32_t current = *(uint32_t *) instr;
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if (current != original) return current == replacement;
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KernelCopyData(OSEffectiveToPhysical((uint32_t) instr), OSEffectiveToPhysical((uint32_t) &replacement), sizeof(replacement));
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//Only works on AROMA! WUPS 0.1's KernelCopyData is uncached, needs DCInvalidate here instead
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DCFlushRange(instr, 4);
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ICInvalidateRange(instr, 4);
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current = *(uint32_t *) instr;
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return true;
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}
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/* https://github.com/QuarkTheAwesome/CafeBinPatch/blob/main/src/runtime-patcher.cpp#L74 */
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bool PatchDynLoadFunctions() {
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uint32_t *patch1 = ((uint32_t *) &OSDynLoad_GetNumberOfRPLs) + 6;
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uint32_t *patch2 = ((uint32_t *) &OSDynLoad_GetRPLInfo) + 22;
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if (!PatchInstruction(patch1, 0x41820038 /* beq +38 */, 0x60000000 /*nop*/)) {
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return false;
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}
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if (!PatchInstruction(patch2, 0x41820100 /* beq +100 */, 0x60000000 /*nop*/)) {
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return false;
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}
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return true;
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}
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INITIALIZE_PLUGIN() {
|
||||
PatchDynLoadFunctions();
|
||||
}
|
||||
|
||||
ON_APPLICATION_START() {
|
||||
initLogging();
|
||||
DEBUG_FUNCTION_LINE("Started Debugger plugin");
|
||||
pThreadList = (OSThread **) 0x100567F8;
|
||||
DEBUG_FUNCTION_LINE("Hello from Debugger plugin");
|
||||
pThreadList = (OSThread **) 0x100567F8; // 100567f8
|
||||
debugger = new Debugger();
|
||||
DCFlushRange(&debugger, 4);
|
||||
DCFlushRange(debugger, sizeof(Debugger));
|
||||
DEBUG_FUNCTION_LINE("Created Debugger");
|
||||
debugger->start();
|
||||
DEBUG_FUNCTION_LINE("Started Debugger thread");
|
||||
@ -34,3 +71,7 @@ ON_APPLICATION_REQUESTS_EXIT() {
|
||||
DEBUG_FUNCTION_LINE("Deleted Debugger thread");
|
||||
deinitLogging();
|
||||
}
|
||||
ON_APPLICATION_ENDS() {
|
||||
initDebugState = false;
|
||||
DCFlushRange(&initDebugState, sizeof(initDebugState));
|
||||
}
|
||||
|
@ -1,17 +1,35 @@
|
||||
#include "logger.h"
|
||||
#include <coreinit/exception.h>
|
||||
#include <cstdint>
|
||||
#include <wups.h>
|
||||
|
||||
DECL_FUNCTION(int, OSSetExceptionCallback) {
|
||||
return 0;
|
||||
extern bool initDebugState;
|
||||
|
||||
DECL_FUNCTION(OSExceptionCallbackFn, OSSetExceptionCallback,
|
||||
OSExceptionType exceptionType,
|
||||
OSExceptionCallbackFn callback) {
|
||||
if (initDebugState) {
|
||||
return nullptr;
|
||||
} else {
|
||||
return real_OSSetExceptionCallback(exceptionType, callback);
|
||||
}
|
||||
}
|
||||
DECL_FUNCTION(int, OSSetExceptionCallbackEx) {
|
||||
return 0;
|
||||
DECL_FUNCTION(OSExceptionCallbackFn, OSSetExceptionCallbackEx,
|
||||
OSExceptionMode mode,
|
||||
OSExceptionType exceptionType,
|
||||
OSExceptionCallbackFn callback) {
|
||||
if (initDebugState) {
|
||||
return nullptr;
|
||||
} else {
|
||||
return real_OSSetExceptionCallbackEx(mode, exceptionType, callback);
|
||||
}
|
||||
}
|
||||
DECL_FUNCTION(int, OSIsDebuggerInitialized) {
|
||||
return true;
|
||||
return initDebugState;
|
||||
}
|
||||
|
||||
|
||||
WUPS_MUST_REPLACE(OSSetExceptionCallback, WUPS_LOADER_LIBRARY_COREINIT, OSSetExceptionCallback);
|
||||
WUPS_MUST_REPLACE(OSSetExceptionCallbackEx, WUPS_LOADER_LIBRARY_COREINIT, OSSetExceptionCallbackEx);
|
||||
WUPS_MUST_REPLACE(OSIsDebuggerInitialized, WUPS_LOADER_LIBRARY_COREINIT, OSIsDebuggerInitialized);
|
||||
// OSSetExceptionCallbackEx is just a branch to another function.
|
||||
// Instead of "fixing" the FunctionPatcher, we use this hacky solution :)
|
||||
WUPS_MUST_REPLACE_PHYSICAL_FOR_PROCESS(OSSetExceptionCallbackEx, (0x3201C400 + 0x286b0), (0x101C400 + 0x286b0), WUPS_FP_TARGET_PROCESS_GAME_AND_MENU);
|
||||
WUPS_MUST_REPLACE_FOR_PROCESS(OSSetExceptionCallback, WUPS_LOADER_LIBRARY_COREINIT, OSSetExceptionCallback, WUPS_FP_TARGET_PROCESS_GAME_AND_MENU);
|
||||
WUPS_MUST_REPLACE_FOR_PROCESS(OSIsDebuggerInitialized, WUPS_LOADER_LIBRARY_COREINIT, OSIsDebuggerInitialized, WUPS_FP_TARGET_PROCESS_GAME_AND_MENU);
|
||||
|
@ -1,14 +1,16 @@
|
||||
|
||||
#include "screen.h"
|
||||
#include "logger.h"
|
||||
#include <coreinit/debug.h>
|
||||
#include <gx2/state.h>
|
||||
|
||||
#include <memory/mappedmemory.h>
|
||||
|
||||
Screen::Screen() : screenBuffer(nullptr) {}
|
||||
Screen::Screen() : screenBuffer(nullptr) {
|
||||
init();
|
||||
}
|
||||
Screen::~Screen() {
|
||||
if (screenBuffer) {
|
||||
MEMFreeToMappedMemory(screenBuffer);
|
||||
screenBuffer = nullptr;
|
||||
}
|
||||
destroyBuffer();
|
||||
}
|
||||
|
||||
void Screen::init() {
|
||||
@ -17,6 +19,9 @@ void Screen::init() {
|
||||
uint32_t bufferSize0 = OSScreenGetBufferSizeEx(SCREEN_TV);
|
||||
uint32_t bufferSize1 = OSScreenGetBufferSizeEx(SCREEN_DRC);
|
||||
screenBuffer = MEMAllocFromMappedMemoryForGX2Ex(bufferSize0 + bufferSize1, 0x100);
|
||||
if (screenBuffer == nullptr) {
|
||||
OSFatal("Failed to allocate screenbuffer");
|
||||
}
|
||||
OSScreenSetBufferEx(SCREEN_TV, screenBuffer);
|
||||
OSScreenSetBufferEx(SCREEN_DRC, (char *) screenBuffer + bufferSize0);
|
||||
|
||||
@ -86,3 +91,11 @@ void Screen::flip() {
|
||||
flip(SCREEN_TV);
|
||||
flip(SCREEN_DRC);
|
||||
}
|
||||
void Screen::destroyBuffer() {
|
||||
if (screenBuffer) {
|
||||
MEMFreeToMappedMemory(screenBuffer);
|
||||
screenBuffer = nullptr;
|
||||
}
|
||||
|
||||
GX2Init(nullptr);
|
||||
}
|
||||
|
@ -22,6 +22,8 @@ public:
|
||||
static void drawText(OSScreenID screen, int x, int y, const char *text);
|
||||
static void flip(OSScreenID screen);
|
||||
|
||||
void destroyBuffer();
|
||||
|
||||
private:
|
||||
void *screenBuffer;
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user