9489161d0b
Burnout Paradise statically expects certain thread handle values based on how many objects it knows it is allocating ahead of time. From this, it calculates an ID by subtracting the thread handle from a base handle of what it expects the first such thread to be assigned. The value is statically declared in the executable and is not determined automatically. The host objects in the handle range made these thread handles higher than what the game expects. Removing these, and allowing 0xF8000000 to be assigned, allows the thread handles to fit perfectly in the range the game expects. It is not clear what handle range the host objects should be taking. For now though, they're 0-based rather than 0xF8000000-based.
105 lines
3.5 KiB
C++
105 lines
3.5 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2020 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#ifndef XENIA_KERNEL_XMODULE_H_
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#define XENIA_KERNEL_XMODULE_H_
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#include <string>
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#include "xenia/cpu/module.h"
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#include "xenia/kernel/xobject.h"
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#include "xenia/xbox.h"
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namespace xe {
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namespace kernel {
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constexpr fourcc_t kModuleSaveSignature = make_fourcc("XMOD");
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// https://www.nirsoft.net/kernel_struct/vista/LDR_DATA_TABLE_ENTRY.html
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// HMODULE points to this struct!
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struct X_LDR_DATA_TABLE_ENTRY {
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X_LIST_ENTRY in_load_order_links; // 0x0
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X_LIST_ENTRY in_memory_order_links; // 0x8
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X_LIST_ENTRY in_initialization_order_links; // 0x10
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xe::be<uint32_t> dll_base; // 0x18
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xe::be<uint32_t> image_base; // 0x1C
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xe::be<uint32_t> image_size; // 0x20
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X_UNICODE_STRING full_dll_name; // 0x24
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X_UNICODE_STRING base_dll_name; // 0x2C
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xe::be<uint32_t> flags; // 0x34
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xe::be<uint32_t> full_image_size; // 0x38
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xe::be<uint32_t> entry_point; // 0x3C
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xe::be<uint16_t> load_count; // 0x40
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xe::be<uint16_t> module_index; // 0x42
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xe::be<uint32_t> dll_base_original; // 0x44
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xe::be<uint32_t> checksum; // 0x48 hijacked to hold kernel handle
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xe::be<uint32_t> load_flags; // 0x4C
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xe::be<uint32_t> time_date_stamp; // 0x50
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xe::be<uint32_t> loaded_imports; // 0x54
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xe::be<uint32_t> xex_header_base; // 0x58
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// X_ANSI_STRING load_file_name; // 0x5C
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xe::be<uint32_t> closure_root; // 0x5C
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xe::be<uint32_t> traversal_parent; // 0x60
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};
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class XModule : public XObject {
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public:
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enum class ModuleType {
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// Matches debugger Module type.
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kKernelModule = 0,
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kUserModule = 1,
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};
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static const XObject::Type kObjectType = XObject::Type::Module;
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XModule(KernelState* kernel_state, ModuleType module_type,
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bool host_object = false);
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virtual ~XModule();
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ModuleType module_type() const { return module_type_; }
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virtual const std::string& path() const = 0;
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virtual const std::string& name() const = 0;
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bool Matches(const std::string_view name) const;
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xe::cpu::Module* processor_module() const { return processor_module_; }
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uint32_t hmodule_ptr() const { return hmodule_ptr_; }
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virtual uint32_t GetProcAddressByOrdinal(uint16_t ordinal) = 0;
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virtual uint32_t GetProcAddressByName(const std::string_view name) = 0;
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virtual X_STATUS GetSection(const std::string_view name,
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uint32_t* out_section_data,
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uint32_t* out_section_size);
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static object_ref<XModule> GetFromHModule(KernelState* kernel_state,
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void* hmodule);
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static uint32_t GetHandleFromHModule(void* hmodule);
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virtual bool Save(ByteStream* stream) override;
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static object_ref<XModule> Restore(KernelState* kernel_state,
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ByteStream* stream);
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protected:
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void OnLoad();
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void OnUnload();
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ModuleType module_type_;
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xe::cpu::Module* processor_module_;
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uint32_t hmodule_ptr_; // This points to LDR_DATA_TABLE_ENTRY.
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};
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} // namespace kernel
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} // namespace xe
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#endif // XENIA_KERNEL_XMODULE_H_
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