182 lines
7.4 KiB
C++
182 lines
7.4 KiB
C++
/**
|
|
******************************************************************************
|
|
* Xenia : Xbox 360 Emulator Research Project *
|
|
******************************************************************************
|
|
* Copyright 2013 Ben Vanik. All rights reserved. *
|
|
* Released under the BSD license - see LICENSE in the root for more details. *
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include <xenia/kernel/xboxkrnl_module.h>
|
|
|
|
#include <gflags/gflags.h>
|
|
#include <poly/math.h>
|
|
#include <xenia/emulator.h>
|
|
#include <xenia/export_resolver.h>
|
|
#include <xenia/kernel/kernel_state.h>
|
|
#include <xenia/kernel/xboxkrnl_private.h>
|
|
#include <xenia/kernel/objects/xuser_module.h>
|
|
|
|
|
|
DEFINE_bool(abort_before_entry, false,
|
|
"Abort execution right before launching the module.");
|
|
|
|
|
|
namespace xe {
|
|
namespace kernel {
|
|
|
|
|
|
XboxkrnlModule::XboxkrnlModule(Emulator* emulator, KernelState* kernel_state) :
|
|
XKernelModule(kernel_state, "xe:\\xboxkrnl.exe") {
|
|
// Build the export table used for resolution.
|
|
#include <xenia/kernel/util/export_table_pre.inc>
|
|
static KernelExport xboxkrnl_export_table[] = {
|
|
#include <xenia/kernel/xboxkrnl_table.inc>
|
|
};
|
|
#include <xenia/kernel/util/export_table_post.inc>
|
|
export_resolver_->RegisterTable("xboxkrnl.exe", xboxkrnl_export_table,
|
|
poly::countof(xboxkrnl_export_table));
|
|
|
|
// Register all exported functions.
|
|
xboxkrnl::RegisterAudioExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterDebugExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterHalExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterIoExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterMemoryExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterMiscExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterModuleExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterObExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterRtlExports(export_resolver_, kernel_state_);
|
|
xboxkrnl::RegisterStringExports(export_resolver_, kernel_state_);
|
|
xboxkrnl::RegisterThreadingExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterUsbcamExports(export_resolver_, kernel_state);
|
|
xboxkrnl::RegisterVideoExports(export_resolver_, kernel_state);
|
|
|
|
uint8_t* mem = memory_->membase();
|
|
|
|
// KeDebugMonitorData (?*)
|
|
// Set to a valid value when a remote debugger is attached.
|
|
// Offset 0x18 is a 4b pointer to a handler function that seems to take two
|
|
// arguments. If we wanted to see what would happen we could fake that.
|
|
uint32_t pKeDebugMonitorData = (uint32_t)memory_->HeapAlloc(0, 256, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::KeDebugMonitorData,
|
|
pKeDebugMonitorData);
|
|
poly::store_and_swap<uint32_t>(mem + pKeDebugMonitorData, 0);
|
|
|
|
// KeCertMonitorData (?*)
|
|
// Always set to zero, ignored.
|
|
uint32_t pKeCertMonitorData = (uint32_t)memory_->HeapAlloc(0, 4, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::KeCertMonitorData,
|
|
pKeCertMonitorData);
|
|
poly::store_and_swap<uint32_t>(mem + pKeCertMonitorData, 0);
|
|
|
|
// XboxHardwareInfo (XboxHardwareInfo_t, 16b)
|
|
// flags cpu# ? ? ? ? ? ?
|
|
// 0x00000000, 0x06, 0x00, 0x00, 0x00, 0x00000000, 0x0000, 0x0000
|
|
// Games seem to check if bit 26 (0x20) is set, which at least for xbox1
|
|
// was whether an HDD was present. Not sure what the other flags are.
|
|
uint32_t pXboxHardwareInfo = (uint32_t)memory_->HeapAlloc(0, 16, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::XboxHardwareInfo,
|
|
pXboxHardwareInfo);
|
|
poly::store_and_swap<uint32_t>(mem + pXboxHardwareInfo + 0, 0x00000000); // flags
|
|
poly::store_and_swap<uint8_t> (mem + pXboxHardwareInfo + 4, 0x06); // cpu count
|
|
// Remaining 11b are zeroes?
|
|
|
|
// XexExecutableModuleHandle (?**)
|
|
// Games try to dereference this to get a pointer to some module struct.
|
|
// So far it seems like it's just in loader code, and only used to look up
|
|
// the XexHeaderBase for use by RtlImageXexHeaderField.
|
|
// We fake it so that the address passed to that looks legit.
|
|
// 0x80100FFC <- pointer to structure
|
|
// 0x80101000 <- our module structure
|
|
// 0x80101058 <- pointer to xex header
|
|
// 0x80101100 <- xex header base
|
|
uint32_t ppXexExecutableModuleHandle = (uint32_t)memory_->HeapAlloc(0, 4, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::XexExecutableModuleHandle,
|
|
ppXexExecutableModuleHandle);
|
|
uint32_t pXexExecutableModuleHandle =
|
|
(uint32_t)memory_->HeapAlloc(0, 256, 0);
|
|
poly::store_and_swap<uint32_t>(mem + ppXexExecutableModuleHandle, pXexExecutableModuleHandle);
|
|
poly::store_and_swap<uint32_t>(mem + pXexExecutableModuleHandle + 0x58, 0x80101100);
|
|
|
|
// ExLoadedCommandLine (char*)
|
|
// The name of the xex. Not sure this is ever really used on real devices.
|
|
// Perhaps it's how swap disc/etc data is sent?
|
|
// Always set to "default.xex" (with quotes) for now.
|
|
uint32_t pExLoadedCommandLine = (uint32_t)memory_->HeapAlloc(0, 1024, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::ExLoadedCommandLine,
|
|
pExLoadedCommandLine);
|
|
char command_line[] = "\"default.xex\"";
|
|
xe_copy_memory(mem + pExLoadedCommandLine, 1024,
|
|
command_line, poly::countof(command_line) + 1);
|
|
|
|
// XboxKrnlVersion (8b)
|
|
// Kernel version, looks like 2b.2b.2b.2b.
|
|
// I've only seen games check >=, so we just fake something here.
|
|
uint32_t pXboxKrnlVersion = (uint32_t)memory_->HeapAlloc(0, 8, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::XboxKrnlVersion,
|
|
pXboxKrnlVersion);
|
|
poly::store_and_swap<uint16_t>(mem + pXboxKrnlVersion + 0, 2);
|
|
poly::store_and_swap<uint16_t>(mem + pXboxKrnlVersion + 2, 0xFFFF);
|
|
poly::store_and_swap<uint16_t>(mem + pXboxKrnlVersion + 4, 0xFFFF);
|
|
poly::store_and_swap<uint16_t>(mem + pXboxKrnlVersion + 6, 0xFFFF);
|
|
|
|
// KeTimeStampBundle (ad)
|
|
uint32_t pKeTimeStampBundle = (uint32_t)memory_->HeapAlloc(0, 24, 0);
|
|
export_resolver_->SetVariableMapping(
|
|
"xboxkrnl.exe", ordinals::KeTimeStampBundle,
|
|
pKeTimeStampBundle);
|
|
poly::store_and_swap<uint64_t>(mem + pKeTimeStampBundle + 0, 0);
|
|
poly::store_and_swap<uint64_t>(mem + pKeTimeStampBundle + 8, 0);
|
|
poly::store_and_swap<uint32_t>(mem + pKeTimeStampBundle + 12, 0);
|
|
}
|
|
|
|
XboxkrnlModule::~XboxkrnlModule() {
|
|
}
|
|
|
|
int XboxkrnlModule::LaunchModule(const char* path) {
|
|
// Create and register the module. We keep it local to this function and
|
|
// dispose it on exit.
|
|
XUserModule* module = new XUserModule(kernel_state_, path);
|
|
|
|
// Load the module into memory from the filesystem.
|
|
X_STATUS result_code = module->LoadFromFile(path);
|
|
if (XFAILED(result_code)) {
|
|
XELOGE("Failed to load module %s: %.8X", path, result_code);
|
|
module->Release();
|
|
return 1;
|
|
}
|
|
|
|
// Set as the main module, while running.
|
|
kernel_state_->SetExecutableModule(module);
|
|
|
|
if (FLAGS_abort_before_entry) {
|
|
XELOGI("--abort_before_entry causing an early exit");
|
|
module->Release();
|
|
return 0;
|
|
}
|
|
|
|
// Launch the module.
|
|
// NOTE: this won't return until the module exits.
|
|
result_code = module->Launch(0);
|
|
kernel_state_->SetExecutableModule(NULL);
|
|
if (XFAILED(result_code)) {
|
|
XELOGE("Failed to launch module %s: %.8X", path, result_code);
|
|
module->Release();
|
|
return 2;
|
|
}
|
|
|
|
module->Release();
|
|
|
|
return 0;
|
|
}
|
|
|
|
} // namespace kernel
|
|
} // namespace xe
|