citra/src/core/hle/kernel/process.h

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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <bitset>
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#include <cstddef>
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#include <memory>
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#include <string>
#include <vector>
#include <boost/container/static_vector.hpp>
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#include <boost/serialization/vector.hpp>
#include <boost/serialization/base_object.hpp>
#include "common/bit_field.h"
#include "common/common_types.h"
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#include "core/hle/kernel/handle_table.h"
#include "core/hle/kernel/object.h"
#include "core/hle/kernel/vm_manager.h"
namespace Kernel {
struct AddressMapping {
// Address and size must be page-aligned
VAddr address;
u32 size;
bool read_only;
bool unk_flag;
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private:
friend class boost::serialization::access;
template <class Archive>
void serialize(Archive& ar, const unsigned int file_version)
{
ar & address;
ar & size;
ar & read_only;
ar & unk_flag;
}
};
union ProcessFlags {
u16 raw;
BitField<0, 1, u16>
allow_debug; ///< Allows other processes to attach to and debug this process.
BitField<1, 1, u16> force_debug; ///< Allows this process to attach to processes even if they
/// don't have allow_debug set.
BitField<2, 1, u16> allow_nonalphanum;
BitField<3, 1, u16> shared_page_writable; ///< Shared page is mapped with write permissions.
BitField<4, 1, u16> privileged_priority; ///< Can use priority levels higher than 24.
BitField<5, 1, u16> allow_main_args;
BitField<6, 1, u16> shared_device_mem;
BitField<7, 1, u16> runnable_on_sleep;
BitField<8, 4, MemoryRegion>
memory_region; ///< Default region for memory allocations for this process
BitField<12, 1, u16> loaded_high; ///< Application loaded high (not at 0x00100000).
};
enum class ProcessStatus { Created, Running, Exited };
class ResourceLimit;
struct MemoryRegionInfo;
class CodeSet final : public Object {
public:
explicit CodeSet(KernelSystem& kernel);
~CodeSet() override;
struct Segment {
std::size_t offset = 0;
VAddr addr = 0;
u32 size = 0;
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private:
friend class boost::serialization::access;
template <class Archive>
void serialize(Archive& ar, const unsigned int file_version)
{
ar & offset;
ar & addr;
ar & size;
}
};
std::string GetTypeName() const override {
return "CodeSet";
}
std::string GetName() const override {
return name;
}
static constexpr HandleType HANDLE_TYPE = HandleType::CodeSet;
HandleType GetHandleType() const override {
return HANDLE_TYPE;
}
Segment& CodeSegment() {
return segments[0];
}
const Segment& CodeSegment() const {
return segments[0];
}
Segment& RODataSegment() {
return segments[1];
}
const Segment& RODataSegment() const {
return segments[1];
}
Segment& DataSegment() {
return segments[2];
}
const Segment& DataSegment() const {
return segments[2];
}
Port various minor changes from yuzu PRs (#4725) * common/thread: Remove unused functions Many of these functions are carried over from Dolphin (where they aren't used anymore). Given these have no use (and we really shouldn't be screwing around with OS-specific thread scheduler handling from the emulator, these can be removed. The function for setting the thread name is left, however, since it can have debugging utility usages. * input_common/sdl: Use a type alias to shorten declaration of GetPollers Just makes the definitions a little bit more tidy. * input_common/sdl: Correct return values within implementations of GetPollers() In both cases, we weren't actually returning anything, which is undefined behavior. * yuzu/debugger/graphics_surface: Fill in missing surface format listings Fills in the missing surface types that were marked as unknown. The order corresponds with the TextureFormat enum within video_core/texture.h. We also don't need to all of these strings as translatable (only the first string, as it's an English word). * yuzu/debugger/graphics_surface: Clean up connection overload deduction We can utilize qOverload with the signal connections to make the function deducing a little less ugly. * yuzu/debugger/graphics_surface: Tidy up SaveSurface - Use QStringLiteral where applicable. - Use const where applicable - Remove unnecessary precondition check (we already assert the pixbuf being non null) * yuzu/debugger/graphics_surface: Display error messages for file I/O errors * core: Add missing override specifiers where applicable Applies the override specifier where applicable. In the case of destructors that are defaulted in their definition, they can simply be removed. This also removes the unnecessary inclusions being done in audin_u and audrec_u, given their close proximity. * kernel/thread: Make parameter of GetWaitObjectIndex() const qualified The pointed to member is never actually modified, so it can be made const. * kernel/thread: Avoid sign conversion within GetCommandBufferAddress() Previously this was performing a u64 + int sign conversion. When dealing with addresses, we should generally be keeping the arithmetic in the same signedness type. This also gets rid of the static lifetime of the constant, as there's no need to make a trivial type like this potentially live for the entire duration of the program. * kernel/codeset: Make CodeSet's memory data member a regular std::vector The use of a shared_ptr is an implementation detail of the VMManager itself when mapping memory. Because of that, we shouldn't require all users of the CodeSet to have to allocate the shared_ptr ahead of time. It's intended that CodeSet simply pass in the required direct data, and that the memory manager takes care of it from that point on. This means we just do the shared pointer allocation in a single place, when loading modules, as opposed to in each loader. * kernel/wait_object: Make ShouldWait() take thread members by pointer-to-const Given this is intended as a querying function, it doesn't make sense to allow the implementer to modify the state of the given thread.
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std::vector<u8> memory;
std::array<Segment, 3> segments;
VAddr entrypoint;
/// Name of the process
std::string name;
/// Title ID corresponding to the process
u64 program_id;
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private:
friend class boost::serialization::access;
template <class Archive>
void serialize(Archive& ar, const unsigned int file_version)
{
ar & boost::serialization::base_object<Object>(*this);
// TODO: memory reference
ar & segments;
ar & entrypoint;
ar & name;
ar & program_id;
}
};
class Process final : public Object {
public:
explicit Process(Kernel::KernelSystem& kernel);
~Process() override;
std::string GetTypeName() const override {
return "Process";
}
std::string GetName() const override {
return codeset->name;
}
static constexpr HandleType HANDLE_TYPE = HandleType::Process;
HandleType GetHandleType() const override {
return HANDLE_TYPE;
}
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HandleTable handle_table;
std::shared_ptr<CodeSet> codeset;
/// Resource limit descriptor for this process
std::shared_ptr<ResourceLimit> resource_limit;
/// The process may only call SVCs which have the corresponding bit set.
std::bitset<0x80> svc_access_mask;
/// Maximum size of the handle table for the process.
unsigned int handle_table_size = 0x200;
/// Special memory ranges mapped into this processes address space. This is used to give
/// processes access to specific I/O regions and device memory.
boost::container::static_vector<AddressMapping, 8> address_mappings;
ProcessFlags flags;
/// Kernel compatibility version for this process
u16 kernel_version = 0;
/// The default CPU for this process, threads are scheduled on this cpu by default.
u8 ideal_processor = 0;
/// Current status of the process
ProcessStatus status;
/// The id of this process
u32 process_id;
/**
* Parses a list of kernel capability descriptors (as found in the ExHeader) and applies them
* to this process.
*/
void ParseKernelCaps(const u32* kernel_caps, std::size_t len);
/**
* Applies address space changes and launches the process main thread.
*/
void Run(s32 main_thread_priority, u32 stack_size);
///////////////////////////////////////////////////////////////////////////////////////////////
// Memory Management
VMManager vm_manager;
u32 memory_used = 0;
MemoryRegionInfo* memory_region = nullptr;
/// The Thread Local Storage area is allocated as processes create threads,
/// each TLS area is 0x200 bytes, so one page (0x1000) is split up in 8 parts, and each part
/// holds the TLS for a specific thread. This vector contains which parts are in use for each
/// page as a bitmask.
/// This vector will grow as more pages are allocated for new threads.
std::vector<std::bitset<8>> tls_slots;
VAddr GetLinearHeapAreaAddress() const;
VAddr GetLinearHeapBase() const;
VAddr GetLinearHeapLimit() const;
ResultVal<VAddr> HeapAllocate(VAddr target, u32 size, VMAPermission perms,
MemoryState memory_state = MemoryState::Private,
bool skip_range_check = false);
ResultCode HeapFree(VAddr target, u32 size);
ResultVal<VAddr> LinearAllocate(VAddr target, u32 size, VMAPermission perms);
ResultCode LinearFree(VAddr target, u32 size);
ResultCode Map(VAddr target, VAddr source, u32 size, VMAPermission perms,
bool privileged = false);
ResultCode Unmap(VAddr target, VAddr source, u32 size, VMAPermission perms,
bool privileged = false);
private:
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KernelSystem& kernel;
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friend class boost::serialization::access;
template <class Archive>
void serialize(Archive& ar, const unsigned int file_version);
};
} // namespace Kernel
BOOST_CLASS_EXPORT_KEY(Kernel::CodeSet)
BOOST_CLASS_EXPORT_KEY(Kernel::Process)
CONSTRUCT_KERNEL_OBJECT(Kernel::CodeSet)
CONSTRUCT_KERNEL_OBJECT(Kernel::Process)