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Kernel: Introduce skeleton Process class to hold process data

This commit is contained in:
Yuri Kunde Schlesner 2015-05-04 00:01:16 -03:00
parent 8809d02db3
commit 6d60acf0f1
13 changed files with 191 additions and 48 deletions
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2
src/core/CMakeLists.txt
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@ -29,6 +29,7 @@ set(SRCS
hle/kernel/event.cpp
hle/kernel/kernel.cpp
hle/kernel/mutex.cpp
hle/kernel/process.cpp
hle/kernel/semaphore.cpp
hle/kernel/session.cpp
hle/kernel/shared_memory.cpp
@ -139,6 +140,7 @@ set(HEADERS
hle/kernel/event.h
hle/kernel/kernel.h
hle/kernel/mutex.h
hle/kernel/process.h
hle/kernel/semaphore.h
hle/kernel/session.h
hle/kernel/shared_memory.h

14
src/core/hle/kernel/kernel.cpp
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@ -10,6 +10,7 @@
#include "core/arm/arm_interface.h"
#include "core/core.h"
#include "core/hle/kernel/kernel.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/thread.h"
#include "core/hle/kernel/timer.h"
@ -149,18 +150,7 @@ void Shutdown() {
Kernel::ThreadingShutdown();
Kernel::TimersShutdown();
g_handle_table.Clear(); // Free all kernel objects
}
/**
* Loads executable stored at specified address
* @entry_point Entry point in memory of loaded executable
* @return True on success, otherwise false
*/
bool LoadExec(u32 entry_point) {
// 0x30 is the typical main thread priority I've seen used so far
g_main_thread = Kernel::SetupMainThread(Kernel::DEFAULT_STACK_SIZE, entry_point, THREADPRIO_DEFAULT);
return true;
g_current_process = nullptr;
}
} // namespace

10
src/core/hle/kernel/kernel.h
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@ -7,6 +7,7 @@
#include <boost/intrusive_ptr.hpp>
#include <array>
#include <memory>
#include <string>
#include <vector>
@ -15,6 +16,8 @@
#include "core/hle/hle.h"
#include "core/hle/result.h"
struct ApplicationInfo;
namespace Kernel {
class Thread;
@ -282,11 +285,4 @@ void Init();
/// Shutdown the kernel
void Shutdown();
/**
* Loads executable stored at specified address
* @entry_point Entry point in memory of loaded executable
* @return True on success, otherwise false
*/
bool LoadExec(u32 entry_point);
} // namespace

35
src/core/hle/kernel/process.cpp Normal file
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@ -0,0 +1,35 @@
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "core/hle/kernel/process.h"
#include "core/hle/kernel/thread.h"
namespace Kernel {
SharedPtr<Process> Process::Create(std::string name, u64 program_id) {
SharedPtr<Process> process(new Process);
process->svc_access_mask.set();
process->name = std::move(name);
process->program_id = program_id;
return process;
}
void Process::ParseKernelCaps(const u32 * kernel_caps, size_t len) {
//UNIMPLEMENTED();
}
void Process::Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size) {
g_main_thread = Kernel::SetupMainThread(stack_size, entry_point, main_thread_priority);
}
Kernel::Process::Process() {}
Kernel::Process::~Process() {}
SharedPtr<Process> g_current_process;
}

61
src/core/hle/kernel/process.h Normal file
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@ -0,0 +1,61 @@
// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <bitset>
#include <boost/container/static_vector.hpp>
#include "core/hle/kernel/kernel.h"
#include "core/hle/result.h"
namespace Kernel {
struct StaticAddressMapping {
// Address and size must be 4K-aligned
VAddr address;
u32 size;
bool writable;
};
enum class MemoryRegion {
APPLICATION = 1,
SYSTEM = 2,
BASE = 3,
};
class Process final : public Object {
public:
static SharedPtr<Process> Create(std::string name, u64 program_id);
std::string GetTypeName() const override { return "Process"; }
std::string GetName() const override { return name; }
static const HandleType HANDLE_TYPE = HandleType::Process;
HandleType GetHandleType() const override { return HANDLE_TYPE; }
std::string name; ///< Name of the process
u64 program_id;
std::bitset<0x80> svc_access_mask;
unsigned int handle_table_size = 0x200;
boost::container::static_vector<StaticAddressMapping, 8> static_address_mappings; // TODO: Determine a good upper limit
bool loaded_high = false; // Application loaded high (not at 0x00100000)
bool shared_page_writable = false;
bool privileged_priority = false; // Can use priority levels higher than 24
MemoryRegion memory_region = MemoryRegion::APPLICATION;
void ParseKernelCaps(const u32* kernel_caps, size_t len);
void Run(VAddr entry_point, s32 main_thread_priority, u32 stack_size);
private:
Process();
~Process() override;
};
extern SharedPtr<Process> g_current_process;
}

11
src/core/loader/3dsx.cpp
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@ -8,9 +8,10 @@
#include "common/logging/log.h"
#include "core/file_sys/archive_romfs.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/fs/archive.h"
#include "core/loader/elf.h"
#include "core/loader/ncch.h"
#include "core/hle/service/fs/archive.h"
#include "core/mem_map.h"
#include "3dsx.h"
@ -229,8 +230,12 @@ ResultStatus AppLoader_THREEDSX::Load() {
if (!file->IsOpen())
return ResultStatus::Error;
Load3DSXFile(*file, 0x00100000);
Kernel::LoadExec(0x00100000);
Kernel::g_current_process = Kernel::Process::Create(filename, 0);
Kernel::g_current_process->static_address_mappings = default_address_mappings;
Load3DSXFile(*file, Memory::EXEFS_CODE_VADDR);
Kernel::g_current_process->Run(Memory::EXEFS_CODE_VADDR, 48, Kernel::DEFAULT_STACK_SIZE);
is_loaded = true;
return ResultStatus::Success;

8
src/core/loader/3dsx.h
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@ -4,6 +4,8 @@
#pragma once
#include <string>
#include "common/common_types.h"
#include "core/loader/loader.h"
@ -15,7 +17,8 @@ namespace Loader {
/// Loads an 3DSX file
class AppLoader_THREEDSX final : public AppLoader {
public:
AppLoader_THREEDSX(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
AppLoader_THREEDSX(std::unique_ptr<FileUtil::IOFile>&& file, std::string filename)
: AppLoader(std::move(file)), filename(std::move(filename)) {}
/**
* Returns the type of the file
@ -29,6 +32,9 @@ public:
* @return ResultStatus result of function
*/
ResultStatus Load() override;
private:
std::string filename;
};
} // namespace Loader

13
src/core/loader/elf.cpp
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@ -10,9 +10,9 @@
#include "common/logging/log.h"
#include "common/symbols.h"
#include "core/mem_map.h"
#include "core/loader/elf.h"
#include "core/hle/kernel/kernel.h"
#include "core/loader/elf.h"
#include "core/mem_map.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// ELF Header Constants
@ -350,9 +350,14 @@ ResultStatus AppLoader_ELF::Load() {
if (file->ReadBytes(&buffer[0], size) != size)
return ResultStatus::Error;
Kernel::g_current_process = Kernel::Process::Create(filename, 0);
Kernel::g_current_process->static_address_mappings = default_address_mappings;
ElfReader elf_reader(&buffer[0]);
elf_reader.LoadInto(0x00100000);
Kernel::LoadExec(elf_reader.GetEntryPoint());
elf_reader.LoadInto(Memory::EXEFS_CODE_VADDR);
// TODO: Fill application title
Kernel::g_current_process->Run(elf_reader.GetEntryPoint(), 48, Kernel::DEFAULT_STACK_SIZE);
is_loaded = true;
return ResultStatus::Success;

8
src/core/loader/elf.h
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@ -4,6 +4,8 @@
#pragma once
#include <string>
#include "common/common_types.h"
#include "core/loader/loader.h"
@ -15,7 +17,8 @@ namespace Loader {
/// Loads an ELF/AXF file
class AppLoader_ELF final : public AppLoader {
public:
AppLoader_ELF(std::unique_ptr<FileUtil::IOFile>&& file) : AppLoader(std::move(file)) { }
AppLoader_ELF(std::unique_ptr<FileUtil::IOFile>&& file, std::string filename)
: AppLoader(std::move(file)), filename(std::move(filename)) { }
/**
* Returns the type of the file
@ -29,6 +32,9 @@ public:
* @return ResultStatus result of function
*/
ResultStatus Load() override;
private:
std::string filename;
};
} // namespace Loader

37
src/core/loader/loader.cpp
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@ -8,16 +8,23 @@
#include "common/make_unique.h"
#include "core/file_sys/archive_romfs.h"
#include "core/hle/kernel/process.h"
#include "core/hle/service/fs/archive.h"
#include "core/loader/3dsx.h"
#include "core/loader/elf.h"
#include "core/loader/ncch.h"
#include "core/hle/service/fs/archive.h"
#include "core/mem_map.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
namespace Loader {
const std::initializer_list<Kernel::StaticAddressMapping> default_address_mappings = {
{ 0x1FF50000, 0x8000, true }, // part of DSP RAM
{ 0x1FF70000, 0x8000, true }, // part of DSP RAM
{ 0x1F000000, 0x600000, false }, // entire VRAM
};
/**
* Identifies the type of a bootable file
* @param file open file
@ -42,19 +49,11 @@ static FileType IdentifyFile(FileUtil::IOFile& file) {
/**
* Guess the type of a bootable file from its extension
* @param filename String filename of bootable file
* @param extension String extension of bootable file
* @return FileType of file
*/
static FileType GuessFromFilename(const std::string& filename) {
if (filename.size() == 0) {
LOG_ERROR(Loader, "invalid filename %s", filename.c_str());
return FileType::Error;
}
size_t extension_loc = filename.find_last_of('.');
if (extension_loc == std::string::npos)
return FileType::Unknown;
std::string extension = Common::ToLower(filename.substr(extension_loc));
static FileType GuessFromExtension(const std::string& extension_) {
std::string extension = Common::ToLower(extension_);
if (extension == ".elf")
return FileType::ELF;
@ -100,8 +99,11 @@ ResultStatus LoadFile(const std::string& filename) {
return ResultStatus::Error;
}
std::string filename_filename, filename_extension;
Common::SplitPath(filename, nullptr, &filename_filename, &filename_extension);
FileType type = IdentifyFile(*file);
FileType filename_type = GuessFromFilename(filename);
FileType filename_type = GuessFromExtension(filename_extension);
if (type != filename_type) {
LOG_WARNING(Loader, "File %s has a different type than its extension.", filename.c_str());
@ -115,11 +117,11 @@ ResultStatus LoadFile(const std::string& filename) {
//3DSX file format...
case FileType::THREEDSX:
return AppLoader_THREEDSX(std::move(file)).Load();
return AppLoader_THREEDSX(std::move(file), filename_filename).Load();
// Standard ELF file format...
case FileType::ELF:
return AppLoader_ELF(std::move(file)).Load();
return AppLoader_ELF(std::move(file), filename_filename).Load();
// NCCH/NCSD container formats...
case FileType::CXI:
@ -139,11 +141,14 @@ ResultStatus LoadFile(const std::string& filename) {
// Raw BIN file format...
case FileType::BIN:
{
Kernel::g_current_process = Kernel::Process::Create(filename_filename, 0);
Kernel::g_current_process->static_address_mappings = default_address_mappings;
size_t size = (size_t)file->GetSize();
if (file->ReadBytes(Memory::GetPointer(Memory::EXEFS_CODE_VADDR), size) != size)
return ResultStatus::Error;
Kernel::LoadExec(Memory::EXEFS_CODE_VADDR);
Kernel::g_current_process->Run(Memory::EXEFS_CODE_VADDR, 0x30, Kernel::DEFAULT_STACK_SIZE);
return ResultStatus::Success;
}

8
src/core/loader/loader.h
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@ -9,6 +9,8 @@
#include "common/common_types.h"
#include "common/file_util.h"
#include "core/hle/kernel/process.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// Loader namespace
@ -104,6 +106,12 @@ protected:
bool is_loaded = false;
};
/**
* Common address mappings found in most games, used for binary formats that don't have this
* information.
*/
extern const std::initializer_list<Kernel::StaticAddressMapping> default_address_mappings;
/**
* Identifies and loads a bootable file
* @param filename String filename of bootable file

20
src/core/loader/ncch.cpp
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@ -5,9 +5,12 @@
#include <memory>
#include "common/logging/log.h"
#include "common/make_unique.h"
#include "common/string_util.h"
#include "common/swap.h"
#include "core/loader/ncch.h"
#include "core/hle/kernel/kernel.h"
#include "core/loader/ncch.h"
#include "core/mem_map.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
@ -117,8 +120,21 @@ ResultStatus AppLoader_NCCH::LoadExec() const {
std::vector<u8> code;
if (ResultStatus::Success == ReadCode(code)) {
std::string process_name = Common::StringFromFixedZeroTerminatedBuffer(
(const char*)exheader_header.codeset_info.name, 8);
u64 program_id = *reinterpret_cast<u64_le const*>(&ncch_header.program_id[0]);
Kernel::g_current_process = Kernel::Process::Create(process_name, program_id);
// Copy data while converting endianess
std::array<u32, ARRAY_SIZE(exheader_header.arm11_kernel_caps.descriptors)> kernel_caps;
std::copy_n(exheader_header.arm11_kernel_caps.descriptors, kernel_caps.size(), begin(kernel_caps));
Kernel::g_current_process->ParseKernelCaps(kernel_caps.data(), kernel_caps.size());
Memory::WriteBlock(entry_point, &code[0], code.size());
Kernel::LoadExec(entry_point);
s32 priority = exheader_header.arm11_system_local_caps.priority;
u32 stack_size = exheader_header.codeset_info.stack_size;
Kernel::g_current_process->Run(entry_point, priority, stack_size);
return ResultStatus::Success;
}
return ResultStatus::Error;

12
src/core/loader/ncch.h
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@ -6,7 +6,9 @@
#include <memory>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "common/swap.h"
#include "core/loader/loader.h"
@ -109,7 +111,13 @@ struct ExHeader_StorageInfo{
struct ExHeader_ARM11_SystemLocalCaps{
u8 program_id[8];
u32 core_version;
u8 flags[3];
u8 reserved_flags[2];
union {
u8 flags0;
BitField<0, 2, u8> ideal_processor;
BitField<2, 2, u8> affinity_mask;
BitField<4, 4, u8> system_mode;
};
u8 priority;
u8 resource_limit_descriptor[0x10][2];
ExHeader_StorageInfo storage_info;
@ -120,7 +128,7 @@ struct ExHeader_ARM11_SystemLocalCaps{
};
struct ExHeader_ARM11_KernelCaps{
u8 descriptors[28][4];
u32_le descriptors[28];
u8 reserved[0x10];
};