Merge pull request #8199 from liamwhite/jit-service
service: jit: Implement the JIT service
This commit is contained in:
Fernando S
GitHub
commit
276764cfe9
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@ -460,6 +460,8 @@ add_library(core STATIC
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hle/service/hid/controllers/touchscreen.h
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hle/service/hid/controllers/xpad.cpp
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hle/service/hid/controllers/xpad.h
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hle/service/jit/jit_context.cpp
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hle/service/jit/jit_context.h
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hle/service/jit/jit.cpp
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hle/service/jit/jit.h
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hle/service/lbl/lbl.cpp
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@ -35,9 +35,14 @@ ResultCode KCodeMemory::Initialize(Core::DeviceMemory& device_memory, VAddr addr
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R_TRY(page_table.LockForCodeMemory(addr, size))
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// Clear the memory.
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for (const auto& block : m_page_group.Nodes()) {
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std::memset(device_memory.GetPointer(block.GetAddress()), 0xFF, block.GetSize());
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}
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//
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// FIXME: this ends up clobbering address ranges outside the scope of the mapping within
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// guest memory, and is not specifically required if the guest program is correctly
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// written, so disable until this is further investigated.
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//
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// for (const auto& block : m_page_group.Nodes()) {
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// std::memset(device_memory.GetPointer(block.GetAddress()), 0xFF, block.GetSize());
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// }
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// Set remaining tracking members.
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m_address = addr;
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@ -2,27 +2,256 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "core/arm/symbols.h"
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#include "core/core.h"
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#include "core/hle/ipc_helpers.h"
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#include "core/hle/kernel/k_code_memory.h"
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#include "core/hle/kernel/k_transfer_memory.h"
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#include "core/hle/result.h"
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#include "core/hle/service/jit/jit.h"
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#include "core/hle/service/jit/jit_context.h"
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#include "core/hle/service/service.h"
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#include "core/memory.h"
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namespace Service::JIT {
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struct CodeRange {
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u64 offset;
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u64 size;
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};
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class IJitEnvironment final : public ServiceFramework<IJitEnvironment> {
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public:
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explicit IJitEnvironment(Core::System& system_) : ServiceFramework{system_, "IJitEnvironment"} {
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explicit IJitEnvironment(Core::System& system_, CodeRange user_rx, CodeRange user_ro)
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: ServiceFramework{system_, "IJitEnvironment", ServiceThreadType::CreateNew},
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context{system_.Memory()} {
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// clang-format off
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static const FunctionInfo functions[] = {
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{0, nullptr, "GenerateCode"},
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{1, nullptr, "Control"},
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{1000, nullptr, "LoadPlugin"},
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{1001, nullptr, "GetCodeAddress"},
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{0, &IJitEnvironment::GenerateCode, "GenerateCode"},
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{1, &IJitEnvironment::Control, "Control"},
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{1000, &IJitEnvironment::LoadPlugin, "LoadPlugin"},
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{1001, &IJitEnvironment::GetCodeAddress, "GetCodeAddress"},
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};
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// clang-format on
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RegisterHandlers(functions);
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// Identity map user code range into sysmodule context
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configuration.user_ro_memory = user_ro;
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configuration.user_rx_memory = user_rx;
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configuration.sys_ro_memory = user_ro;
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configuration.sys_rx_memory = user_rx;
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}
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void GenerateCode(Kernel::HLERequestContext& ctx) {
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struct Parameters {
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u32 data_size;
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u64 command;
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CodeRange cr1;
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CodeRange cr2;
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Struct32 data;
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};
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IPC::RequestParser rp{ctx};
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const auto parameters{rp.PopRaw<Parameters>()};
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std::vector<u8> input_buffer{ctx.CanReadBuffer() ? ctx.ReadBuffer() : std::vector<u8>()};
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std::vector<u8> output_buffer(ctx.CanWriteBuffer() ? ctx.GetWriteBufferSize() : 0);
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const VAddr return_ptr{context.AddHeap(0u)};
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const VAddr cr1_in_ptr{context.AddHeap(parameters.cr1)};
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const VAddr cr2_in_ptr{context.AddHeap(parameters.cr2)};
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const VAddr cr1_out_ptr{
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context.AddHeap(CodeRange{.offset = parameters.cr1.offset, .size = 0})};
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const VAddr cr2_out_ptr{
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context.AddHeap(CodeRange{.offset = parameters.cr2.offset, .size = 0})};
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const VAddr input_ptr{context.AddHeap(input_buffer.data(), input_buffer.size())};
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const VAddr output_ptr{context.AddHeap(output_buffer.data(), output_buffer.size())};
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const VAddr data_ptr{context.AddHeap(parameters.data)};
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const VAddr configuration_ptr{context.AddHeap(configuration)};
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context.CallFunction(callbacks.GenerateCode, return_ptr, cr1_out_ptr, cr2_out_ptr,
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configuration_ptr, parameters.command, input_ptr, input_buffer.size(),
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cr1_in_ptr, cr2_in_ptr, data_ptr, parameters.data_size, output_ptr,
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output_buffer.size());
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const s32 return_value{context.GetHeap<s32>(return_ptr)};
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if (return_value == 0) {
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system.InvalidateCpuInstructionCacheRange(configuration.user_rx_memory.offset,
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configuration.user_rx_memory.size);
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if (ctx.CanWriteBuffer()) {
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context.GetHeap(output_ptr, output_buffer.data(), output_buffer.size());
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ctx.WriteBuffer(output_buffer.data(), output_buffer.size());
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}
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const auto cr1_out{context.GetHeap<CodeRange>(cr1_out_ptr)};
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const auto cr2_out{context.GetHeap<CodeRange>(cr2_out_ptr)};
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IPC::ResponseBuilder rb{ctx, 8};
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rb.Push(ResultSuccess);
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rb.Push<u64>(return_value);
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rb.PushRaw(cr1_out);
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rb.PushRaw(cr2_out);
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} else {
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LOG_WARNING(Service_JIT, "plugin GenerateCode callback failed");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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}
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};
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void Control(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx};
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const auto command{rp.PopRaw<u64>()};
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const auto input_buffer{ctx.ReadBuffer()};
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std::vector<u8> output_buffer(ctx.CanWriteBuffer() ? ctx.GetWriteBufferSize() : 0);
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const VAddr return_ptr{context.AddHeap(0u)};
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const VAddr configuration_ptr{context.AddHeap(configuration)};
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const VAddr input_ptr{context.AddHeap(input_buffer.data(), input_buffer.size())};
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const VAddr output_ptr{context.AddHeap(output_buffer.data(), output_buffer.size())};
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const u64 wrapper_value{
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context.CallFunction(callbacks.Control, return_ptr, configuration_ptr, command,
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input_ptr, input_buffer.size(), output_ptr, output_buffer.size())};
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const s32 return_value{context.GetHeap<s32>(return_ptr)};
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if (wrapper_value == 0 && return_value == 0) {
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if (ctx.CanWriteBuffer()) {
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context.GetHeap(output_ptr, output_buffer.data(), output_buffer.size());
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ctx.WriteBuffer(output_buffer.data(), output_buffer.size());
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}
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IPC::ResponseBuilder rb{ctx, 3};
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rb.Push(ResultSuccess);
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rb.Push(return_value);
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} else {
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LOG_WARNING(Service_JIT, "plugin Control callback failed");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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}
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}
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void LoadPlugin(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp{ctx};
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const auto tmem_size{rp.PopRaw<u64>()};
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if (tmem_size == 0) {
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LOG_ERROR(Service_JIT, "attempted to load plugin with empty transfer memory");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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const auto tmem_handle{ctx.GetCopyHandle(0)};
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auto tmem{system.CurrentProcess()->GetHandleTable().GetObject<Kernel::KTransferMemory>(
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tmem_handle)};
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if (tmem.IsNull()) {
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LOG_ERROR(Service_JIT, "attempted to load plugin with invalid transfer memory handle");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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configuration.work_memory.offset = tmem->GetSourceAddress();
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configuration.work_memory.size = tmem_size;
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const auto nro_plugin{ctx.ReadBuffer(1)};
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auto symbols{Core::Symbols::GetSymbols(nro_plugin, true)};
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const auto GetSymbol{[&](std::string name) { return symbols[name].first; }};
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callbacks =
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GuestCallbacks{.rtld_fini = GetSymbol("_fini"),
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.rtld_init = GetSymbol("_init"),
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.Control = GetSymbol("nnjitpluginControl"),
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.ResolveBasicSymbols = GetSymbol("nnjitpluginResolveBasicSymbols"),
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.SetupDiagnostics = GetSymbol("nnjitpluginSetupDiagnostics"),
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.Configure = GetSymbol("nnjitpluginConfigure"),
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.GenerateCode = GetSymbol("nnjitpluginGenerateCode"),
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.GetVersion = GetSymbol("nnjitpluginGetVersion"),
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.Keeper = GetSymbol("nnjitpluginKeeper"),
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.OnPrepared = GetSymbol("nnjitpluginOnPrepared")};
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if (callbacks.GetVersion == 0 || callbacks.Configure == 0 || callbacks.GenerateCode == 0 ||
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callbacks.OnPrepared == 0) {
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LOG_ERROR(Service_JIT, "plugin does not implement all necessary functionality");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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if (!context.LoadNRO(nro_plugin)) {
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LOG_ERROR(Service_JIT, "failed to load plugin");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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context.MapProcessMemory(configuration.sys_ro_memory.offset,
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configuration.sys_ro_memory.size);
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context.MapProcessMemory(configuration.sys_rx_memory.offset,
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configuration.sys_rx_memory.size);
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context.MapProcessMemory(configuration.work_memory.offset, configuration.work_memory.size);
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if (callbacks.rtld_init != 0) {
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context.CallFunction(callbacks.rtld_init);
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}
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const auto version{context.CallFunction(callbacks.GetVersion)};
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if (version != 1) {
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LOG_ERROR(Service_JIT, "unknown plugin version {}", version);
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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const auto resolve{context.GetHelper("_resolve")};
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if (callbacks.ResolveBasicSymbols != 0) {
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context.CallFunction(callbacks.ResolveBasicSymbols, resolve);
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}
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const auto resolve_ptr{context.AddHeap(resolve)};
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if (callbacks.SetupDiagnostics != 0) {
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context.CallFunction(callbacks.SetupDiagnostics, 0u, resolve_ptr);
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}
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context.CallFunction(callbacks.Configure, 0u);
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const auto configuration_ptr{context.AddHeap(configuration)};
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context.CallFunction(callbacks.OnPrepared, configuration_ptr);
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultSuccess);
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}
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void GetCodeAddress(Kernel::HLERequestContext& ctx) {
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IPC::ResponseBuilder rb{ctx, 6};
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rb.Push(ResultSuccess);
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rb.Push(configuration.user_rx_memory.offset);
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rb.Push(configuration.user_ro_memory.offset);
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}
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private:
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using Struct32 = std::array<u8, 32>;
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struct GuestCallbacks {
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VAddr rtld_fini;
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VAddr rtld_init;
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VAddr Control;
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VAddr ResolveBasicSymbols;
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VAddr SetupDiagnostics;
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VAddr Configure;
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VAddr GenerateCode;
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VAddr GetVersion;
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VAddr Keeper;
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VAddr OnPrepared;
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};
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struct JITConfiguration {
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CodeRange user_rx_memory;
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CodeRange user_ro_memory;
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CodeRange work_memory;
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CodeRange sys_rx_memory;
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CodeRange sys_ro_memory;
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};
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GuestCallbacks callbacks;
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JITConfiguration configuration;
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JITContext context;
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};
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class JITU final : public ServiceFramework<JITU> {
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@ -40,9 +269,59 @@ public:
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void CreateJitEnvironment(Kernel::HLERequestContext& ctx) {
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LOG_DEBUG(Service_JIT, "called");
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struct Parameters {
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u64 rx_size;
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u64 ro_size;
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};
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IPC::RequestParser rp{ctx};
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const auto parameters{rp.PopRaw<Parameters>()};
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const auto executable_mem_handle{ctx.GetCopyHandle(1)};
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const auto readable_mem_handle{ctx.GetCopyHandle(2)};
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if (parameters.rx_size == 0 || parameters.ro_size == 0) {
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LOG_ERROR(Service_JIT, "attempted to init with empty code regions");
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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// The copy handle at index 0 is the process handle, but handle tables are
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// per-process, so there is no point reading it here until we are multiprocess
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const auto& process{*system.CurrentProcess()};
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auto executable_mem{
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process.GetHandleTable().GetObject<Kernel::KCodeMemory>(executable_mem_handle)};
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if (executable_mem.IsNull()) {
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LOG_ERROR(Service_JIT, "executable_mem is null for handle=0x{:08X}",
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executable_mem_handle);
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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auto readable_mem{
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process.GetHandleTable().GetObject<Kernel::KCodeMemory>(readable_mem_handle)};
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if (readable_mem.IsNull()) {
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LOG_ERROR(Service_JIT, "readable_mem is null for handle=0x{:08X}", readable_mem_handle);
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ResultUnknown);
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return;
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}
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const CodeRange user_rx{
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.offset = executable_mem->GetSourceAddress(),
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.size = parameters.rx_size,
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};
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const CodeRange user_ro{
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.offset = readable_mem->GetSourceAddress(),
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.size = parameters.ro_size,
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};
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IPC::ResponseBuilder rb{ctx, 2, 0, 1};
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rb.Push(ResultSuccess);
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rb.PushIpcInterface<IJitEnvironment>(system);
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rb.PushIpcInterface<IJitEnvironment>(system, user_rx, user_ro);
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}
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};
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@ -0,0 +1,424 @@
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// Copyright 2022 yuzu Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <array>
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#include <map>
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#include <span>
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#include <boost/icl/interval_set.hpp>
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#include <dynarmic/interface/A64/a64.h>
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#include <dynarmic/interface/A64/config.h>
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#include "common/alignment.h"
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#include "common/common_funcs.h"
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#include "common/div_ceil.h"
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#include "common/logging/log.h"
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#include "core/hle/service/jit/jit_context.h"
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#include "core/memory.h"
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namespace Service::JIT {
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constexpr std::array<u8, 4> STOP_ARM64 = {
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0x01, 0x00, 0x00, 0xd4, // svc #0
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};
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constexpr std::array<u8, 8> RESOLVE_ARM64 = {
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0x21, 0x00, 0x00, 0xd4, // svc #1
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0xc0, 0x03, 0x5f, 0xd6, // ret
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};
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constexpr std::array<u8, 4> PANIC_ARM64 = {
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0x41, 0x00, 0x00, 0xd4, // svc #2
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};
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constexpr std::array<u8, 60> MEMMOVE_ARM64 = {
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0x1f, 0x00, 0x01, 0xeb, // cmp x0, x1
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0x83, 0x01, 0x00, 0x54, // b.lo #+34
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0x42, 0x04, 0x00, 0xd1, // sub x2, x2, 1
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0x22, 0x01, 0xf8, 0xb7, // tbnz x2, #63, #+36
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0x23, 0x68, 0x62, 0x38, // ldrb w3, [x1, x2]
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0x03, 0x68, 0x22, 0x38, // strb w3, [x0, x2]
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0xfc, 0xff, 0xff, 0x17, // b #-16
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0x24, 0x68, 0x63, 0x38, // ldrb w4, [x1, x3]
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0x04, 0x68, 0x23, 0x38, // strb w4, [x0, x3]
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0x63, 0x04, 0x00, 0x91, // add x3, x3, 1
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0x7f, 0x00, 0x02, 0xeb, // cmp x3, x2
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0x8b, 0xff, 0xff, 0x54, // b.lt #-16
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0xc0, 0x03, 0x5f, 0xd6, // ret
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0x03, 0x00, 0x80, 0xd2, // mov x3, 0
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0xfc, 0xff, 0xff, 0x17, // b #-16
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};
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constexpr std::array<u8, 28> MEMSET_ARM64 = {
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0x03, 0x00, 0x80, 0xd2, // mov x3, 0
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0x7f, 0x00, 0x02, 0xeb, // cmp x3, x2
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0x4b, 0x00, 0x00, 0x54, // b.lt #+8
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0xc0, 0x03, 0x5f, 0xd6, // ret
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0x01, 0x68, 0x23, 0x38, // strb w1, [x0, x3]
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0x63, 0x04, 0x00, 0x91, // add x3, x3, 1
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0xfb, 0xff, 0xff, 0x17, // b #-20
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};
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struct HelperFunction {
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const char* name;
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const std::span<const u8> data;
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};
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constexpr std::array<HelperFunction, 6> HELPER_FUNCTIONS{{
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{"_stop", STOP_ARM64},
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{"_resolve", RESOLVE_ARM64},
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{"_panic", PANIC_ARM64},
|
||||
{"memcpy", MEMMOVE_ARM64},
|
||||
{"memmove", MEMMOVE_ARM64},
|
||||
{"memset", MEMSET_ARM64},
|
||||
}};
|
||||
|
||||
struct Elf64_Dyn {
|
||||
u64 d_tag;
|
||||
u64 d_un;
|
||||
};
|
||||
|
||||
struct Elf64_Rela {
|
||||
u64 r_offset;
|
||||
u64 r_info;
|
||||
s64 r_addend;
|
||||
};
|
||||
|
||||
static constexpr u32 Elf64_RelaType(const Elf64_Rela* rela) {
|
||||
return static_cast<u32>(rela->r_info);
|
||||
}
|
||||
|
||||
constexpr int DT_RELA = 7; /* Address of Rela relocs */
|
||||
constexpr int DT_RELASZ = 8; /* Total size of Rela relocs */
|
||||
constexpr int R_AARCH64_RELATIVE = 1027; /* Adjust by program base. */
|
||||
|
||||
constexpr size_t STACK_ALIGN = 16;
|
||||
|
||||
class JITContextImpl;
|
||||
|
||||
using IntervalSet = boost::icl::interval_set<VAddr>::type;
|
||||
using IntervalType = boost::icl::interval_set<VAddr>::interval_type;
|
||||
|
||||
class DynarmicCallbacks64 : public Dynarmic::A64::UserCallbacks {
|
||||
public:
|
||||
explicit DynarmicCallbacks64(Core::Memory::Memory& memory_, std::vector<u8>& local_memory_,
|
||||
IntervalSet& mapped_ranges_, JITContextImpl& parent_)
|
||||
: memory{memory_}, local_memory{local_memory_},
|
||||
mapped_ranges{mapped_ranges_}, parent{parent_} {}
|
||||
|
||||
u8 MemoryRead8(u64 vaddr) override {
|
||||
return ReadMemory<u8>(vaddr);
|
||||
}
|
||||
u16 MemoryRead16(u64 vaddr) override {
|
||||
return ReadMemory<u16>(vaddr);
|
||||
}
|
||||
u32 MemoryRead32(u64 vaddr) override {
|
||||
return ReadMemory<u32>(vaddr);
|
||||
}
|
||||
u64 MemoryRead64(u64 vaddr) override {
|
||||
return ReadMemory<u64>(vaddr);
|
||||
}
|
||||
u128 MemoryRead128(u64 vaddr) override {
|
||||
return ReadMemory<u128>(vaddr);
|
||||
}
|
||||
std::string MemoryReadCString(u64 vaddr) {
|
||||
std::string result;
|
||||
u8 next;
|
||||
|
||||
while ((next = MemoryRead8(vaddr++)) != 0) {
|
||||
result += next;
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
void MemoryWrite8(u64 vaddr, u8 value) override {
|
||||
WriteMemory<u8>(vaddr, value);
|
||||
}
|
||||
void MemoryWrite16(u64 vaddr, u16 value) override {
|
||||
WriteMemory<u16>(vaddr, value);
|
||||
}
|
||||
void MemoryWrite32(u64 vaddr, u32 value) override {
|
||||
WriteMemory<u32>(vaddr, value);
|
||||
}
|
||||
void MemoryWrite64(u64 vaddr, u64 value) override {
|
||||
WriteMemory<u64>(vaddr, value);
|
||||
}
|
||||
void MemoryWrite128(u64 vaddr, u128 value) override {
|
||||
WriteMemory<u128>(vaddr, value);
|
||||
}
|
||||
|
||||
bool MemoryWriteExclusive8(u64 vaddr, u8 value, u8) override {
|
||||
return WriteMemory<u8>(vaddr, value);
|
||||
}
|
||||
bool MemoryWriteExclusive16(u64 vaddr, u16 value, u16) override {
|
||||
return WriteMemory<u16>(vaddr, value);
|
||||
}
|
||||
bool MemoryWriteExclusive32(u64 vaddr, u32 value, u32) override {
|
||||
return WriteMemory<u32>(vaddr, value);
|
||||
}
|
||||
bool MemoryWriteExclusive64(u64 vaddr, u64 value, u64) override {
|
||||
return WriteMemory<u64>(vaddr, value);
|
||||
}
|
||||
bool MemoryWriteExclusive128(u64 vaddr, u128 value, u128) override {
|
||||
return WriteMemory<u128>(vaddr, value);
|
||||
}
|
||||
|
||||
void CallSVC(u32 swi) override;
|
||||
void ExceptionRaised(u64 pc, Dynarmic::A64::Exception exception) override;
|
||||
void InterpreterFallback(u64 pc, size_t num_instructions) override;
|
||||
|
||||
void AddTicks(u64 ticks) override {}
|
||||
u64 GetTicksRemaining() override {
|
||||
return std::numeric_limits<u32>::max();
|
||||
}
|
||||
u64 GetCNTPCT() override {
|
||||
return 0;
|
||||
}
|
||||
|
||||
template <class T>
|
||||
T ReadMemory(u64 vaddr) {
|
||||
T ret{};
|
||||
if (boost::icl::contains(mapped_ranges, vaddr)) {
|
||||
memory.ReadBlock(vaddr, &ret, sizeof(T));
|
||||
} else if (vaddr + sizeof(T) > local_memory.size()) {
|
||||
LOG_CRITICAL(Service_JIT, "plugin: unmapped read @ 0x{:016x}", vaddr);
|
||||
} else {
|
||||
std::memcpy(&ret, local_memory.data() + vaddr, sizeof(T));
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
template <class T>
|
||||
bool WriteMemory(u64 vaddr, const T value) {
|
||||
if (boost::icl::contains(mapped_ranges, vaddr)) {
|
||||
memory.WriteBlock(vaddr, &value, sizeof(T));
|
||||
} else if (vaddr + sizeof(T) > local_memory.size()) {
|
||||
LOG_CRITICAL(Service_JIT, "plugin: unmapped write @ 0x{:016x}", vaddr);
|
||||
} else {
|
||||
std::memcpy(local_memory.data() + vaddr, &value, sizeof(T));
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
private:
|
||||
Core::Memory::Memory& memory;
|
||||
std::vector<u8>& local_memory;
|
||||
IntervalSet& mapped_ranges;
|
||||
JITContextImpl& parent;
|
||||
};
|
||||
|
||||
class JITContextImpl {
|
||||
public:
|
||||
explicit JITContextImpl(Core::Memory::Memory& memory_) : memory{memory_} {
|
||||
callbacks =
|
||||
std::make_unique<DynarmicCallbacks64>(memory, local_memory, mapped_ranges, *this);
|
||||
user_config.callbacks = callbacks.get();
|
||||
jit = std::make_unique<Dynarmic::A64::Jit>(user_config);
|
||||
}
|
||||
|
||||
bool LoadNRO(std::span<const u8> data) {
|
||||
local_memory.clear();
|
||||
local_memory.insert(local_memory.end(), data.begin(), data.end());
|
||||
|
||||
if (FixupRelocations()) {
|
||||
InsertHelperFunctions();
|
||||
InsertStack();
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
bool FixupRelocations() {
|
||||
const VAddr mod_offset{callbacks->MemoryRead32(4)};
|
||||
if (callbacks->MemoryRead32(mod_offset) != Common::MakeMagic('M', 'O', 'D', '0')) {
|
||||
return false;
|
||||
}
|
||||
|
||||
VAddr dynamic_offset{mod_offset + callbacks->MemoryRead32(mod_offset + 4)};
|
||||
VAddr rela_dyn = 0;
|
||||
size_t num_rela = 0;
|
||||
while (true) {
|
||||
const auto dyn{callbacks->ReadMemory<Elf64_Dyn>(dynamic_offset)};
|
||||
dynamic_offset += sizeof(Elf64_Dyn);
|
||||
|
||||
if (!dyn.d_tag) {
|
||||
break;
|
||||
}
|
||||
if (dyn.d_tag == DT_RELA) {
|
||||
rela_dyn = dyn.d_un;
|
||||
}
|
||||
if (dyn.d_tag == DT_RELASZ) {
|
||||
num_rela = dyn.d_un / sizeof(Elf64_Rela);
|
||||
}
|
||||
}
|
||||
|
||||
for (size_t i = 0; i < num_rela; i++) {
|
||||
const auto rela{callbacks->ReadMemory<Elf64_Rela>(rela_dyn + i * sizeof(Elf64_Rela))};
|
||||
if (Elf64_RelaType(&rela) != R_AARCH64_RELATIVE) {
|
||||
continue;
|
||||
}
|
||||
const VAddr contents{callbacks->MemoryRead64(rela.r_offset)};
|
||||
callbacks->MemoryWrite64(rela.r_offset, contents + rela.r_addend);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
void InsertHelperFunctions() {
|
||||
for (const auto& [name, contents] : HELPER_FUNCTIONS) {
|
||||
helpers[name] = local_memory.size();
|
||||
local_memory.insert(local_memory.end(), contents.begin(), contents.end());
|
||||
}
|
||||
}
|
||||
|
||||
void InsertStack() {
|
||||
const u64 pad_amount{Common::AlignUp(local_memory.size(), STACK_ALIGN) -
|
||||
local_memory.size()};
|
||||
local_memory.insert(local_memory.end(), 0x10000 + pad_amount, 0);
|
||||
top_of_stack = local_memory.size();
|
||||
heap_pointer = top_of_stack;
|
||||
}
|
||||
|
||||
void MapProcessMemory(VAddr dest_address, std::size_t size) {
|
||||
mapped_ranges.add(IntervalType{dest_address, dest_address + size});
|
||||
}
|
||||
|
||||
void PushArgument(const void* data, size_t size) {
|
||||
const size_t num_words = Common::DivCeil(size, sizeof(u64));
|
||||
const size_t current_pos = argument_stack.size();
|
||||
argument_stack.insert(argument_stack.end(), num_words, 0);
|
||||
std::memcpy(argument_stack.data() + current_pos, data, size);
|
||||
}
|
||||
|
||||
void SetupArguments() {
|
||||
for (size_t i = 0; i < 8 && i < argument_stack.size(); i++) {
|
||||
jit->SetRegister(i, argument_stack[i]);
|
||||
}
|
||||
if (argument_stack.size() > 8) {
|
||||
const VAddr new_sp = Common::AlignDown(
|
||||
top_of_stack - (argument_stack.size() - 8) * sizeof(u64), STACK_ALIGN);
|
||||
for (size_t i = 8; i < argument_stack.size(); i++) {
|
||||
callbacks->MemoryWrite64(new_sp + (i - 8) * sizeof(u64), argument_stack[i]);
|
||||
}
|
||||
jit->SetSP(new_sp);
|
||||
}
|
||||
argument_stack.clear();
|
||||
heap_pointer = top_of_stack;
|
||||
}
|
||||
|
||||
u64 CallFunction(VAddr func) {
|
||||
jit->SetRegister(30, helpers["_stop"]);
|
||||
jit->SetSP(top_of_stack);
|
||||
SetupArguments();
|
||||
|
||||
jit->SetPC(func);
|
||||
jit->Run();
|
||||
return jit->GetRegister(0);
|
||||
}
|
||||
|
||||
VAddr GetHelper(const std::string& name) {
|
||||
return helpers[name];
|
||||
}
|
||||
|
||||
VAddr AddHeap(const void* data, size_t size) {
|
||||
const size_t num_bytes{Common::AlignUp(size, STACK_ALIGN)};
|
||||
if (heap_pointer + num_bytes > local_memory.size()) {
|
||||
local_memory.insert(local_memory.end(),
|
||||
(heap_pointer + num_bytes) - local_memory.size(), 0);
|
||||
}
|
||||
const VAddr location{heap_pointer};
|
||||
std::memcpy(local_memory.data() + location, data, size);
|
||||
heap_pointer += num_bytes;
|
||||
return location;
|
||||
}
|
||||
|
||||
void GetHeap(VAddr location, void* data, size_t size) {
|
||||
std::memcpy(data, local_memory.data() + location, size);
|
||||
}
|
||||
|
||||
std::unique_ptr<DynarmicCallbacks64> callbacks;
|
||||
std::vector<u8> local_memory;
|
||||
std::vector<u64> argument_stack;
|
||||
IntervalSet mapped_ranges;
|
||||
Dynarmic::A64::UserConfig user_config;
|
||||
std::unique_ptr<Dynarmic::A64::Jit> jit;
|
||||
std::map<std::string, VAddr, std::less<>> helpers;
|
||||
Core::Memory::Memory& memory;
|
||||
VAddr top_of_stack;
|
||||
VAddr heap_pointer;
|
||||
};
|
||||
|
||||
void DynarmicCallbacks64::CallSVC(u32 swi) {
|
||||
switch (swi) {
|
||||
case 0:
|
||||
parent.jit->HaltExecution();
|
||||
break;
|
||||
|
||||
case 1: {
|
||||
// X0 contains a char* for a symbol to resolve
|
||||
std::string name{MemoryReadCString(parent.jit->GetRegister(0))};
|
||||
const auto helper{parent.helpers[name]};
|
||||
|
||||
if (helper != 0) {
|
||||
parent.jit->SetRegister(0, helper);
|
||||
} else {
|
||||
LOG_WARNING(Service_JIT, "plugin requested unknown function {}", name);
|
||||
parent.jit->SetRegister(0, parent.helpers["_panic"]);
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
case 2:
|
||||
default:
|
||||
LOG_CRITICAL(Service_JIT, "plugin panicked!");
|
||||
parent.jit->HaltExecution();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
void DynarmicCallbacks64::ExceptionRaised(u64 pc, Dynarmic::A64::Exception exception) {
|
||||
LOG_CRITICAL(Service_JIT, "Illegal operation PC @ {:08x}", pc);
|
||||
parent.jit->HaltExecution();
|
||||
}
|
||||
|
||||
void DynarmicCallbacks64::InterpreterFallback(u64 pc, size_t num_instructions) {
|
||||
LOG_CRITICAL(Service_JIT, "Unimplemented instruction PC @ {:08x}", pc);
|
||||
parent.jit->HaltExecution();
|
||||
}
|
||||
|
||||
JITContext::JITContext(Core::Memory::Memory& memory)
|
||||
: impl{std::make_unique<JITContextImpl>(memory)} {}
|
||||
|
||||
JITContext::~JITContext() {}
|
||||
|
||||
bool JITContext::LoadNRO(std::span<const u8> data) {
|
||||
return impl->LoadNRO(data);
|
||||
}
|
||||
|
||||
void JITContext::MapProcessMemory(VAddr dest_address, std::size_t size) {
|
||||
impl->MapProcessMemory(dest_address, size);
|
||||
}
|
||||
|
||||
u64 JITContext::CallFunction(VAddr func) {
|
||||
return impl->CallFunction(func);
|
||||
}
|
||||
|
||||
void JITContext::PushArgument(const void* data, size_t size) {
|
||||
impl->PushArgument(data, size);
|
||||
}
|
||||
|
||||
VAddr JITContext::GetHelper(const std::string& name) {
|
||||
return impl->GetHelper(name);
|
||||
}
|
||||
|
||||
VAddr JITContext::AddHeap(const void* data, size_t size) {
|
||||
return impl->AddHeap(data, size);
|
||||
}
|
||||
|
||||
void JITContext::GetHeap(VAddr location, void* data, size_t size) {
|
||||
impl->GetHeap(location, data, size);
|
||||
}
|
||||
|
||||
} // namespace Service::JIT
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
// Copyright 2022 yuzu Emulator Project
|
||||
// Licensed under GPLv2 or any later version
|
||||
// Refer to the license.txt file included.
|
||||
|
||||
#pragma once
|
||||
|
||||
#include <memory>
|
||||
#include <span>
|
||||
#include <string>
|
||||
|
||||
#include "common/common_types.h"
|
||||
|
||||
namespace Core::Memory {
|
||||
class Memory;
|
||||
}
|
||||
|
||||
namespace Service::JIT {
|
||||
|
||||
class JITContextImpl;
|
||||
|
||||
class JITContext {
|
||||
public:
|
||||
explicit JITContext(Core::Memory::Memory& memory);
|
||||
~JITContext();
|
||||
|
||||
[[nodiscard]] bool LoadNRO(std::span<const u8> data);
|
||||
void MapProcessMemory(VAddr dest_address, std::size_t size);
|
||||
|
||||
template <typename T, typename... Ts>
|
||||
u64 CallFunction(VAddr func, T argument, Ts... rest) {
|
||||
static_assert(std::is_trivially_copyable_v<T>);
|
||||
PushArgument(&argument, sizeof(argument));
|
||||
|
||||
if constexpr (sizeof...(rest) > 0) {
|
||||
return CallFunction(func, rest...);
|
||||
} else {
|
||||
return CallFunction(func);
|
||||
}
|
||||
}
|
||||
|
||||
u64 CallFunction(VAddr func);
|
||||
VAddr GetHelper(const std::string& name);
|
||||
|
||||
template <typename T>
|
||||
VAddr AddHeap(T argument) {
|
||||
return AddHeap(&argument, sizeof(argument));
|
||||
}
|
||||
VAddr AddHeap(const void* data, size_t size);
|
||||
|
||||
template <typename T>
|
||||
T GetHeap(VAddr location) {
|
||||
static_assert(std::is_trivially_copyable_v<T>);
|
||||
T result;
|
||||
GetHeap(location, &result, sizeof(result));
|
||||
return result;
|
||||
}
|
||||
void GetHeap(VAddr location, void* data, size_t size);
|
||||
|
||||
private:
|
||||
std::unique_ptr<JITContextImpl> impl;
|
||||
|
||||
void PushArgument(const void* data, size_t size);
|
||||
};
|
||||
|
||||
} // namespace Service::JIT
|
||||
Reference in New Issue