diff options
Diffstat (limited to 'src/core/arm/unicorn/arm_unicorn.cpp')
-rw-r--r-- | src/core/arm/unicorn/arm_unicorn.cpp | 295 |
1 files changed, 0 insertions, 295 deletions
diff --git a/src/core/arm/unicorn/arm_unicorn.cpp b/src/core/arm/unicorn/arm_unicorn.cpp deleted file mode 100644 index 1df3f3ed1..000000000 --- a/src/core/arm/unicorn/arm_unicorn.cpp +++ /dev/null @@ -1,295 +0,0 @@ -// Copyright 2018 yuzu emulator team -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <algorithm> -#include <unicorn/arm64.h> -#include "common/assert.h" -#include "common/microprofile.h" -#include "core/arm/cpu_interrupt_handler.h" -#include "core/arm/unicorn/arm_unicorn.h" -#include "core/core.h" -#include "core/core_timing.h" -#include "core/hle/kernel/scheduler.h" -#include "core/hle/kernel/svc.h" -#include "core/memory.h" - -namespace Core { - -// Load Unicorn DLL once on Windows using RAII -#ifdef _MSC_VER -#include <unicorn_dynload.h> -struct LoadDll { -private: - LoadDll() { - ASSERT(uc_dyn_load(NULL, 0)); - } - ~LoadDll() { - ASSERT(uc_dyn_free()); - } - static LoadDll g_load_dll; -}; -LoadDll LoadDll::g_load_dll; -#endif - -#define CHECKED(expr) \ - do { \ - if (auto _cerr = (expr)) { \ - ASSERT_MSG(false, "Call " #expr " failed with error: {} ({})\n", _cerr, \ - uc_strerror(_cerr)); \ - } \ - } while (0) - -static void CodeHook(uc_engine* uc, uint64_t address, uint32_t size, void* user_data) { - GDBStub::BreakpointAddress bkpt = - GDBStub::GetNextBreakpointFromAddress(address, GDBStub::BreakpointType::Execute); - if (GDBStub::IsMemoryBreak() || - (bkpt.type != GDBStub::BreakpointType::None && address == bkpt.address)) { - auto core = static_cast<ARM_Unicorn*>(user_data); - core->RecordBreak(bkpt); - uc_emu_stop(uc); - } -} - -static bool UnmappedMemoryHook(uc_engine* uc, uc_mem_type type, u64 addr, int size, u64 value, - void* user_data) { - auto* const system = static_cast<System*>(user_data); - - ARM_Interface::ThreadContext64 ctx{}; - system->CurrentArmInterface().SaveContext(ctx); - ASSERT_MSG(false, "Attempted to read from unmapped memory: 0x{:X}, pc=0x{:X}, lr=0x{:X}", addr, - ctx.pc, ctx.cpu_registers[30]); - - return false; -} - -ARM_Unicorn::ARM_Unicorn(System& system, CPUInterrupts& interrupt_handlers, bool uses_wall_clock, - Arch architecture, std::size_t core_index) - : ARM_Interface{system, interrupt_handlers, uses_wall_clock}, core_index{core_index} { - const auto arch = architecture == Arch::AArch32 ? UC_ARCH_ARM : UC_ARCH_ARM64; - CHECKED(uc_open(arch, UC_MODE_ARM, &uc)); - - auto fpv = 3 << 20; - CHECKED(uc_reg_write(uc, UC_ARM64_REG_CPACR_EL1, &fpv)); - - uc_hook hook{}; - CHECKED(uc_hook_add(uc, &hook, UC_HOOK_INTR, (void*)InterruptHook, this, 0, UINT64_MAX)); - CHECKED(uc_hook_add(uc, &hook, UC_HOOK_MEM_INVALID, (void*)UnmappedMemoryHook, &system, 0, - UINT64_MAX)); - if (GDBStub::IsServerEnabled()) { - CHECKED(uc_hook_add(uc, &hook, UC_HOOK_CODE, (void*)CodeHook, this, 0, UINT64_MAX)); - last_bkpt_hit = false; - } -} - -ARM_Unicorn::~ARM_Unicorn() { - CHECKED(uc_close(uc)); -} - -void ARM_Unicorn::SetPC(u64 pc) { - CHECKED(uc_reg_write(uc, UC_ARM64_REG_PC, &pc)); -} - -u64 ARM_Unicorn::GetPC() const { - u64 val{}; - CHECKED(uc_reg_read(uc, UC_ARM64_REG_PC, &val)); - return val; -} - -u64 ARM_Unicorn::GetReg(int regn) const { - u64 val{}; - auto treg = UC_ARM64_REG_SP; - if (regn <= 28) { - treg = (uc_arm64_reg)(UC_ARM64_REG_X0 + regn); - } else if (regn < 31) { - treg = (uc_arm64_reg)(UC_ARM64_REG_X29 + regn - 29); - } - CHECKED(uc_reg_read(uc, treg, &val)); - return val; -} - -void ARM_Unicorn::SetReg(int regn, u64 val) { - auto treg = UC_ARM64_REG_SP; - if (regn <= 28) { - treg = (uc_arm64_reg)(UC_ARM64_REG_X0 + regn); - } else if (regn < 31) { - treg = (uc_arm64_reg)(UC_ARM64_REG_X29 + regn - 29); - } - CHECKED(uc_reg_write(uc, treg, &val)); -} - -u128 ARM_Unicorn::GetVectorReg(int /*index*/) const { - UNIMPLEMENTED(); - static constexpr u128 res{}; - return res; -} - -void ARM_Unicorn::SetVectorReg(int /*index*/, u128 /*value*/) { - UNIMPLEMENTED(); -} - -u32 ARM_Unicorn::GetPSTATE() const { - u64 nzcv{}; - CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &nzcv)); - return static_cast<u32>(nzcv); -} - -void ARM_Unicorn::SetPSTATE(u32 pstate) { - u64 nzcv = pstate; - CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &nzcv)); -} - -VAddr ARM_Unicorn::GetTlsAddress() const { - u64 base{}; - CHECKED(uc_reg_read(uc, UC_ARM64_REG_TPIDRRO_EL0, &base)); - return base; -} - -void ARM_Unicorn::SetTlsAddress(VAddr base) { - CHECKED(uc_reg_write(uc, UC_ARM64_REG_TPIDRRO_EL0, &base)); -} - -u64 ARM_Unicorn::GetTPIDR_EL0() const { - u64 value{}; - CHECKED(uc_reg_read(uc, UC_ARM64_REG_TPIDR_EL0, &value)); - return value; -} - -void ARM_Unicorn::SetTPIDR_EL0(u64 value) { - CHECKED(uc_reg_write(uc, UC_ARM64_REG_TPIDR_EL0, &value)); -} - -void ARM_Unicorn::ChangeProcessorID(std::size_t new_core_id) { - core_index = new_core_id; -} - -void ARM_Unicorn::Run() { - if (GDBStub::IsServerEnabled()) { - ExecuteInstructions(std::max(4000000U, 0U)); - } else { - while (true) { - if (interrupt_handlers[core_index].IsInterrupted()) { - return; - } - ExecuteInstructions(10); - } - } -} - -void ARM_Unicorn::Step() { - ExecuteInstructions(1); -} - -MICROPROFILE_DEFINE(ARM_Jit_Unicorn, "ARM JIT", "Unicorn", MP_RGB(255, 64, 64)); - -void ARM_Unicorn::ExecuteInstructions(std::size_t num_instructions) { - MICROPROFILE_SCOPE(ARM_Jit_Unicorn); - - // Temporarily map the code page for Unicorn - u64 map_addr{GetPC() & ~Memory::PAGE_MASK}; - std::vector<u8> page_buffer(Memory::PAGE_SIZE); - system.Memory().ReadBlock(map_addr, page_buffer.data(), page_buffer.size()); - - CHECKED(uc_mem_map_ptr(uc, map_addr, page_buffer.size(), - UC_PROT_READ | UC_PROT_WRITE | UC_PROT_EXEC, page_buffer.data())); - CHECKED(uc_emu_start(uc, GetPC(), 1ULL << 63, 0, num_instructions)); - CHECKED(uc_mem_unmap(uc, map_addr, page_buffer.size())); - if (GDBStub::IsServerEnabled()) { - if (last_bkpt_hit && last_bkpt.type == GDBStub::BreakpointType::Execute) { - uc_reg_write(uc, UC_ARM64_REG_PC, &last_bkpt.address); - } - - Kernel::Thread* const thread = system.CurrentScheduler().GetCurrentThread(); - SaveContext(thread->GetContext64()); - if (last_bkpt_hit || GDBStub::IsMemoryBreak() || GDBStub::GetCpuStepFlag()) { - last_bkpt_hit = false; - GDBStub::Break(); - GDBStub::SendTrap(thread, 5); - } - } -} - -void ARM_Unicorn::SaveContext(ThreadContext64& ctx) { - int uregs[32]; - void* tregs[32]; - - CHECKED(uc_reg_read(uc, UC_ARM64_REG_SP, &ctx.sp)); - CHECKED(uc_reg_read(uc, UC_ARM64_REG_PC, &ctx.pc)); - CHECKED(uc_reg_read(uc, UC_ARM64_REG_NZCV, &ctx.pstate)); - - for (auto i = 0; i < 29; ++i) { - uregs[i] = UC_ARM64_REG_X0 + i; - tregs[i] = &ctx.cpu_registers[i]; - } - uregs[29] = UC_ARM64_REG_X29; - tregs[29] = (void*)&ctx.cpu_registers[29]; - uregs[30] = UC_ARM64_REG_X30; - tregs[30] = (void*)&ctx.cpu_registers[30]; - - CHECKED(uc_reg_read_batch(uc, uregs, tregs, 31)); - - for (int i = 0; i < 32; ++i) { - uregs[i] = UC_ARM64_REG_Q0 + i; - tregs[i] = &ctx.vector_registers[i]; - } - - CHECKED(uc_reg_read_batch(uc, uregs, tregs, 32)); -} - -void ARM_Unicorn::LoadContext(const ThreadContext64& ctx) { - int uregs[32]; - void* tregs[32]; - - CHECKED(uc_reg_write(uc, UC_ARM64_REG_SP, &ctx.sp)); - CHECKED(uc_reg_write(uc, UC_ARM64_REG_PC, &ctx.pc)); - CHECKED(uc_reg_write(uc, UC_ARM64_REG_NZCV, &ctx.pstate)); - - for (int i = 0; i < 29; ++i) { - uregs[i] = UC_ARM64_REG_X0 + i; - tregs[i] = (void*)&ctx.cpu_registers[i]; - } - uregs[29] = UC_ARM64_REG_X29; - tregs[29] = (void*)&ctx.cpu_registers[29]; - uregs[30] = UC_ARM64_REG_X30; - tregs[30] = (void*)&ctx.cpu_registers[30]; - - CHECKED(uc_reg_write_batch(uc, uregs, tregs, 31)); - - for (auto i = 0; i < 32; ++i) { - uregs[i] = UC_ARM64_REG_Q0 + i; - tregs[i] = (void*)&ctx.vector_registers[i]; - } - - CHECKED(uc_reg_write_batch(uc, uregs, tregs, 32)); -} - -void ARM_Unicorn::PrepareReschedule() { - CHECKED(uc_emu_stop(uc)); -} - -void ARM_Unicorn::ClearExclusiveState() {} - -void ARM_Unicorn::ClearInstructionCache() {} - -void ARM_Unicorn::RecordBreak(GDBStub::BreakpointAddress bkpt) { - last_bkpt = bkpt; - last_bkpt_hit = true; -} - -void ARM_Unicorn::InterruptHook(uc_engine* uc, u32 int_no, void* user_data) { - u32 esr{}; - CHECKED(uc_reg_read(uc, UC_ARM64_REG_ESR, &esr)); - - const auto ec = esr >> 26; - const auto iss = esr & 0xFFFFFF; - - auto* const arm_instance = static_cast<ARM_Unicorn*>(user_data); - - switch (ec) { - case 0x15: // SVC - Kernel::Svc::Call(arm_instance->system, iss); - break; - } -} - -} // namespace Core |