mirror of
https://github.com/RPCS3/rpcs3.git
synced 2024-11-22 18:53:28 +01:00
ca5158a03e
Remove semaphore_lock and writer_lock classes, replace with std::lock_guard Change semaphore<> interface to Lockable (+ exotic try_unlock method)
679 lines
16 KiB
C++
679 lines
16 KiB
C++
#include "JIT.h"
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#ifndef _XABORT_RETRY
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#define _XABORT_RETRY (1 << 1)
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#endif
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asmjit::JitRuntime& asmjit::get_global_runtime()
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{
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// Magic static
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static asmjit::JitRuntime g_rt;
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return g_rt;
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}
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asmjit::Label asmjit::build_transaction_enter(asmjit::X86Assembler& c, asmjit::Label fallback)
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{
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Label fall = c.newLabel();
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Label begin = c.newLabel();
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c.jmp(begin);
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c.bind(fall);
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c.test(x86::eax, _XABORT_RETRY);
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c.jz(fallback);
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c.align(kAlignCode, 16);
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c.bind(begin);
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c.xbegin(fall);
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return begin;
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}
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void asmjit::build_transaction_abort(asmjit::X86Assembler& c, unsigned char code)
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{
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c.db(0xc6);
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c.db(0xf8);
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c.db(code);
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}
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#ifdef LLVM_AVAILABLE
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#include <unordered_map>
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#include <map>
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#include <unordered_set>
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#include <set>
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#include <array>
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#include <deque>
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#include "types.h"
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#include "StrFmt.h"
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#include "File.h"
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#include "Log.h"
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#include "mutex.h"
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#include "sysinfo.h"
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#include "VirtualMemory.h"
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#ifdef _MSC_VER
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#pragma warning(push, 0)
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#endif
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#include "llvm/Support/TargetSelect.h"
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#include "llvm/Support/FormattedStream.h"
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#include "llvm/ExecutionEngine/ExecutionEngine.h"
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#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
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#include "llvm/ExecutionEngine/JITEventListener.h"
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#include "llvm/ExecutionEngine/ObjectCache.h"
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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#ifdef _WIN32
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#include <Windows.h>
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#else
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#include <sys/mman.h>
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#endif
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// Memory manager mutex
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shared_mutex s_mutex;
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// Size of virtual memory area reserved: 512 MB
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static const u64 s_memory_size = 0x20000000;
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// Try to reserve a portion of virtual memory in the first 2 GB address space beforehand, if possible.
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static void* const s_memory = []() -> void*
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{
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llvm::InitializeNativeTarget();
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llvm::InitializeNativeTargetAsmPrinter();
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LLVMLinkInMCJIT();
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#ifdef MAP_32BIT
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auto ptr = ::mmap(nullptr, s_memory_size, PROT_NONE, MAP_ANON | MAP_PRIVATE | MAP_32BIT, -1, 0);
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if (ptr != MAP_FAILED)
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return ptr;
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#else
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for (u64 addr = 0x10000000; addr <= 0x80000000 - s_memory_size; addr += 0x1000000)
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{
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if (auto ptr = utils::memory_reserve(s_memory_size, (void*)addr))
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{
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return ptr;
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}
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}
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#endif
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return utils::memory_reserve(s_memory_size);
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}();
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static void* s_next = s_memory;
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#ifdef _WIN32
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static std::deque<std::vector<RUNTIME_FUNCTION>> s_unwater;
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static std::vector<std::vector<RUNTIME_FUNCTION>> s_unwind; // .pdata
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#else
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static std::deque<std::pair<u8*, std::size_t>> s_unfire;
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#endif
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// Reset memory manager
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extern void jit_finalize()
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{
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#ifdef _WIN32
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for (auto&& unwind : s_unwind)
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{
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if (!RtlDeleteFunctionTable(unwind.data()))
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{
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LOG_FATAL(GENERAL, "RtlDeleteFunctionTable() failed! Error %u", GetLastError());
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}
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}
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s_unwind.clear();
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#else
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for (auto&& t : s_unfire)
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{
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llvm::RTDyldMemoryManager::deregisterEHFramesInProcess(t.first, t.second);
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}
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s_unfire.clear();
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#endif
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utils::memory_decommit(s_memory, s_memory_size);
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s_next = s_memory;
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}
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// Helper class
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struct MemoryManager : llvm::RTDyldMemoryManager
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{
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std::unordered_map<std::string, u64>& m_link;
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std::array<u8, 16>* m_tramps{};
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u8* m_code_addr{}; // TODO
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MemoryManager(std::unordered_map<std::string, u64>& table)
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: m_link(table)
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{
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}
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[[noreturn]] static void null()
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{
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fmt::throw_exception("Null function" HERE);
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}
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llvm::JITSymbol findSymbol(const std::string& name) override
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{
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auto& addr = m_link[name];
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// Find function address
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if (!addr)
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{
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addr = RTDyldMemoryManager::getSymbolAddress(name);
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if (addr)
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{
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LOG_WARNING(GENERAL, "LLVM: Symbol requested: %s -> 0x%016llx", name, addr);
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}
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else
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{
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LOG_ERROR(GENERAL, "LLVM: Linkage failed: %s", name);
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addr = (u64)null;
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}
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}
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// Verify address for small code model
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if ((u64)s_memory > 0x80000000 - s_memory_size ? (u64)addr - (u64)s_memory >= s_memory_size : addr >= 0x80000000)
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{
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// Lock memory manager
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std::lock_guard lock(s_mutex);
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// Allocate memory for trampolines
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if (!m_tramps)
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{
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m_tramps = reinterpret_cast<decltype(m_tramps)>(s_next);
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utils::memory_commit(s_next, 4096, utils::protection::wx);
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s_next = (u8*)((u64)s_next + 4096);
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}
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// Create a trampoline
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auto& data = *m_tramps++;
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data[0x0] = 0xff; // JMP [rip+2]
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data[0x1] = 0x25;
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data[0x2] = 0x02;
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data[0x3] = 0x00;
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data[0x4] = 0x00;
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data[0x5] = 0x00;
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data[0x6] = 0x48; // MOV rax, imm64 (not executed)
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data[0x7] = 0xb8;
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std::memcpy(data.data() + 8, &addr, 8);
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addr = (u64)&data;
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// Reset pointer (memory page exhausted)
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if (((u64)m_tramps % 4096) == 0)
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{
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m_tramps = nullptr;
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}
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}
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return {addr, llvm::JITSymbolFlags::Exported};
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}
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u8* allocateCodeSection(std::uintptr_t size, uint align, uint sec_id, llvm::StringRef sec_name) override
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{
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// Lock memory manager
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std::lock_guard lock(s_mutex);
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// Simple allocation
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const u64 next = ::align((u64)s_next + size, 4096);
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if (next > (u64)s_memory + s_memory_size)
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{
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LOG_FATAL(GENERAL, "LLVM: Out of memory (size=0x%llx, aligned 0x%x)", size, align);
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return nullptr;
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}
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utils::memory_commit(s_next, size, utils::protection::wx);
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m_code_addr = (u8*)s_next;
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LOG_NOTICE(GENERAL, "LLVM: Code section %u '%s' allocated -> %p (size=0x%llx, aligned 0x%x)", sec_id, sec_name.data(), s_next, size, align);
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return (u8*)std::exchange(s_next, (void*)next);
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}
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u8* allocateDataSection(std::uintptr_t size, uint align, uint sec_id, llvm::StringRef sec_name, bool is_ro) override
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{
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// Lock memory manager
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std::lock_guard lock(s_mutex);
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// Simple allocation
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const u64 next = ::align((u64)s_next + size, 4096);
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if (next > (u64)s_memory + s_memory_size)
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{
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LOG_FATAL(GENERAL, "LLVM: Out of memory (size=0x%llx, aligned 0x%x)", size, align);
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return nullptr;
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}
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if (!is_ro)
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{
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LOG_ERROR(GENERAL, "LLVM: Writeable data section not supported!");
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}
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utils::memory_commit(s_next, size);
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LOG_NOTICE(GENERAL, "LLVM: Data section %u '%s' allocated -> %p (size=0x%llx, aligned 0x%x, %s)", sec_id, sec_name.data(), s_next, size, align, is_ro ? "ro" : "rw");
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return (u8*)std::exchange(s_next, (void*)next);
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}
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bool finalizeMemory(std::string* = nullptr) override
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{
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// Lock memory manager
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std::lock_guard lock(s_mutex);
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// TODO: make only read-only sections read-only
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//#ifdef _WIN32
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// DWORD op;
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// VirtualProtect(s_memory, (u64)m_next - (u64)s_memory, PAGE_READONLY, &op);
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// VirtualProtect(s_code_addr, s_code_size, PAGE_EXECUTE_READ, &op);
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//#else
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// ::mprotect(s_memory, (u64)m_next - (u64)s_memory, PROT_READ);
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// ::mprotect(s_code_addr, s_code_size, PROT_READ | PROT_EXEC);
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//#endif
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return false;
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}
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void registerEHFrames(u8* addr, u64 load_addr, std::size_t size) override
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{
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#ifdef _WIN32
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// Lock memory manager
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std::lock_guard lock(s_mutex);
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// Use s_memory as a BASE, compute the difference
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const u64 unwind_diff = (u64)addr - (u64)s_memory;
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// Fix RUNTIME_FUNCTION records (.pdata section)
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auto pdata = std::move(s_unwater.front());
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s_unwater.pop_front();
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for (auto& rf : pdata)
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{
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rf.UnwindData += static_cast<DWORD>(unwind_diff);
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}
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// Register .xdata UNWIND_INFO structs
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if (!RtlAddFunctionTable(pdata.data(), (DWORD)pdata.size(), (u64)s_memory))
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{
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LOG_ERROR(GENERAL, "RtlAddFunctionTable() failed! Error %u", GetLastError());
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}
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else
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{
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s_unwind.emplace_back(std::move(pdata));
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}
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#else
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s_unfire.push_front(std::make_pair(addr, size));
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#endif
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return RTDyldMemoryManager::registerEHFrames(addr, load_addr, size);
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}
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void deregisterEHFrames() override
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{
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}
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};
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// Simple memory manager
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struct MemoryManager2 : llvm::RTDyldMemoryManager
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{
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// Reserve 2 GiB
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void* const m_memory = utils::memory_reserve(0x80000000);
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u8* const m_code = static_cast<u8*>(m_memory) + 0x00000000;
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u8* const m_data = static_cast<u8*>(m_memory) + 0x40000000;
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u64 m_code_pos = 0;
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u64 m_data_pos = 0;
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MemoryManager2() = default;
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~MemoryManager2() override
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{
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utils::memory_release(m_memory, 0x80000000);
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}
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u8* allocateCodeSection(std::uintptr_t size, uint align, uint sec_id, llvm::StringRef sec_name) override
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{
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// Simple allocation
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const u64 old = m_code_pos;
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const u64 pos = ::align(m_code_pos, align);
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m_code_pos = ::align(pos + size, align);
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if (m_code_pos > 0x40000000)
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{
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LOG_FATAL(GENERAL, "LLVM: Out of code memory (size=0x%x, align=0x%x)", size, align);
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return nullptr;
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}
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const u64 olda = ::align(old, 0x10000);
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const u64 newa = ::align(m_code_pos, 0x10000);
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if (olda != newa)
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{
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// Commit more memory
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utils::memory_commit(m_code + olda, newa - olda, utils::protection::wx);
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}
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LOG_NOTICE(GENERAL, "LLVM: Code section %u '%s' allocated -> %p (size=0x%x, align=0x%x)", sec_id, sec_name.data(), m_code + pos, size, align);
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return m_code + pos;
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}
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u8* allocateDataSection(std::uintptr_t size, uint align, uint sec_id, llvm::StringRef sec_name, bool is_ro) override
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{
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// Simple allocation
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const u64 old = m_data_pos;
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const u64 pos = ::align(m_data_pos, align);
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m_data_pos = ::align(pos + size, align);
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if (m_data_pos > 0x40000000)
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{
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LOG_FATAL(GENERAL, "LLVM: Out of data memory (size=0x%x, align=0x%x)", size, align);
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return nullptr;
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}
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const u64 olda = ::align(old, 0x10000);
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const u64 newa = ::align(m_data_pos, 0x10000);
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if (olda != newa)
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{
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// Commit more memory
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utils::memory_commit(m_data + olda, newa - olda);
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}
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LOG_NOTICE(GENERAL, "LLVM: Data section %u '%s' allocated -> %p (size=0x%x, align=0x%x, %s)", sec_id, sec_name.data(), m_data + pos, size, align, is_ro ? "ro" : "rw");
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return m_data + pos;
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}
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bool finalizeMemory(std::string* = nullptr) override
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{
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return false;
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}
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};
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// Helper class
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struct EventListener : llvm::JITEventListener
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{
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MemoryManager& m_mem;
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EventListener(MemoryManager& mem)
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: m_mem(mem)
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{
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}
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void NotifyObjectEmitted(const llvm::object::ObjectFile& obj, const llvm::RuntimeDyld::LoadedObjectInfo& inf) override
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{
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#ifdef _WIN32
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for (auto it = obj.section_begin(), end = obj.section_end(); it != end; ++it)
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{
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llvm::StringRef name;
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it->getName(name);
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if (name == ".pdata")
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{
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llvm::StringRef data;
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it->getContents(data);
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std::vector<RUNTIME_FUNCTION> rfs(data.size() / sizeof(RUNTIME_FUNCTION));
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auto offsets = reinterpret_cast<DWORD*>(rfs.data());
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// Initialize .pdata section using relocation info
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for (auto ri = it->relocation_begin(), end = it->relocation_end(); ri != end; ++ri)
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{
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if (ri->getType() == 3 /*R_X86_64_GOT32*/)
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{
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const u64 value = *reinterpret_cast<const DWORD*>(data.data() + ri->getOffset());
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offsets[ri->getOffset() / sizeof(DWORD)] = static_cast<DWORD>(value + ri->getSymbol()->getAddress().get());
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}
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}
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// Lock memory manager
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std::lock_guard lock(s_mutex);
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// Use s_memory as a BASE, compute the difference
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const u64 code_diff = (u64)m_mem.m_code_addr - (u64)s_memory;
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// Fix RUNTIME_FUNCTION records (.pdata section)
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for (auto& rf : rfs)
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{
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rf.BeginAddress += static_cast<DWORD>(code_diff);
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rf.EndAddress += static_cast<DWORD>(code_diff);
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}
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s_unwater.emplace_back(std::move(rfs));
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}
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}
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#endif
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}
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};
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// Helper class
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class ObjectCache final : public llvm::ObjectCache
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{
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const std::string& m_path;
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public:
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ObjectCache(const std::string& path)
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: m_path(path)
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{
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}
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~ObjectCache() override = default;
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void notifyObjectCompiled(const llvm::Module* module, llvm::MemoryBufferRef obj) override
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{
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std::string name = m_path;
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name.append(module->getName());
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fs::file(name, fs::rewrite).write(obj.getBufferStart(), obj.getBufferSize());
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LOG_NOTICE(GENERAL, "LLVM: Created module: %s", module->getName().data());
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}
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static std::unique_ptr<llvm::MemoryBuffer> load(const std::string& path)
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{
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if (fs::file cached{path, fs::read})
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{
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auto buf = llvm::WritableMemoryBuffer::getNewUninitMemBuffer(cached.size());
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cached.read(buf->getBufferStart(), buf->getBufferSize());
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return std::move(buf);
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}
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return nullptr;
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}
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std::unique_ptr<llvm::MemoryBuffer> getObject(const llvm::Module* module) override
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{
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std::string path = m_path;
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path.append(module->getName());
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if (auto buf = load(path))
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{
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LOG_NOTICE(GENERAL, "LLVM: Loaded module: %s", module->getName().data());
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return buf;
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}
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return nullptr;
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}
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};
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std::string jit_compiler::cpu(const std::string& _cpu)
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{
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std::string m_cpu = _cpu;
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if (m_cpu.empty())
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{
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m_cpu = llvm::sys::getHostCPUName();
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if (m_cpu == "sandybridge" ||
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m_cpu == "ivybridge" ||
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m_cpu == "haswell" ||
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m_cpu == "broadwell" ||
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m_cpu == "skylake" ||
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m_cpu == "skylake-avx512" ||
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m_cpu == "cannonlake" ||
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m_cpu == "icelake")
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{
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// Downgrade if AVX is not supported by some chips
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if (!utils::has_avx())
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{
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m_cpu = "nehalem";
|
|
}
|
|
}
|
|
|
|
if (m_cpu == "skylake-avx512" ||
|
|
m_cpu == "cannonlake" ||
|
|
m_cpu == "icelake")
|
|
{
|
|
// Downgrade if AVX-512 is disabled or not supported
|
|
if (!utils::has_512())
|
|
{
|
|
m_cpu = "skylake";
|
|
}
|
|
}
|
|
}
|
|
|
|
return m_cpu;
|
|
}
|
|
|
|
jit_compiler::jit_compiler(const std::unordered_map<std::string, u64>& _link, const std::string& _cpu, bool large)
|
|
: m_link(_link)
|
|
, m_cpu(cpu(_cpu))
|
|
{
|
|
std::string result;
|
|
|
|
if (m_link.empty())
|
|
{
|
|
// Auxiliary JIT (does not use custom memory manager, only writes the objects)
|
|
m_engine.reset(llvm::EngineBuilder(std::make_unique<llvm::Module>("null_", m_context))
|
|
.setErrorStr(&result)
|
|
.setEngineKind(llvm::EngineKind::JIT)
|
|
.setMCJITMemoryManager(std::make_unique<MemoryManager2>())
|
|
.setOptLevel(llvm::CodeGenOpt::Aggressive)
|
|
.setCodeModel(large ? llvm::CodeModel::Large : llvm::CodeModel::Small)
|
|
.setMCPU(m_cpu)
|
|
.create());
|
|
}
|
|
else
|
|
{
|
|
// Primary JIT
|
|
auto mem = std::make_unique<MemoryManager>(m_link);
|
|
m_jit_el = std::make_unique<EventListener>(*mem);
|
|
|
|
m_engine.reset(llvm::EngineBuilder(std::make_unique<llvm::Module>("null", m_context))
|
|
.setErrorStr(&result)
|
|
.setEngineKind(llvm::EngineKind::JIT)
|
|
.setMCJITMemoryManager(std::move(mem))
|
|
.setOptLevel(llvm::CodeGenOpt::Aggressive)
|
|
.setCodeModel(large ? llvm::CodeModel::Large : llvm::CodeModel::Small)
|
|
.setMCPU(m_cpu)
|
|
.create());
|
|
|
|
if (m_engine)
|
|
{
|
|
m_engine->RegisterJITEventListener(m_jit_el.get());
|
|
}
|
|
}
|
|
|
|
if (!m_engine)
|
|
{
|
|
fmt::throw_exception("LLVM: Failed to create ExecutionEngine: %s", result);
|
|
}
|
|
}
|
|
|
|
jit_compiler::~jit_compiler()
|
|
{
|
|
}
|
|
|
|
bool jit_compiler::has_ssse3() const
|
|
{
|
|
if (m_cpu == "generic" ||
|
|
m_cpu == "k8" ||
|
|
m_cpu == "opteron" ||
|
|
m_cpu == "athlon64" ||
|
|
m_cpu == "athlon-fx" ||
|
|
m_cpu == "k8-sse3" ||
|
|
m_cpu == "opteron-sse3" ||
|
|
m_cpu == "athlon64-sse3" ||
|
|
m_cpu == "amdfam10" ||
|
|
m_cpu == "barcelona")
|
|
{
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void jit_compiler::add(std::unique_ptr<llvm::Module> module, const std::string& path)
|
|
{
|
|
ObjectCache cache{path};
|
|
m_engine->setObjectCache(&cache);
|
|
|
|
const auto ptr = module.get();
|
|
m_engine->addModule(std::move(module));
|
|
m_engine->generateCodeForModule(ptr);
|
|
m_engine->setObjectCache(nullptr);
|
|
|
|
for (auto& func : ptr->functions())
|
|
{
|
|
// Delete IR to lower memory consumption
|
|
func.deleteBody();
|
|
}
|
|
}
|
|
|
|
void jit_compiler::add(std::unique_ptr<llvm::Module> module)
|
|
{
|
|
const auto ptr = module.get();
|
|
m_engine->addModule(std::move(module));
|
|
m_engine->generateCodeForModule(ptr);
|
|
|
|
for (auto& func : ptr->functions())
|
|
{
|
|
// Delete IR to lower memory consumption
|
|
func.deleteBody();
|
|
}
|
|
}
|
|
|
|
void jit_compiler::add(const std::string& path)
|
|
{
|
|
m_engine->addObjectFile(std::move(llvm::object::ObjectFile::createObjectFile(*ObjectCache::load(path)).get()));
|
|
}
|
|
|
|
void jit_compiler::fin()
|
|
{
|
|
m_engine->finalizeObject();
|
|
}
|
|
|
|
u64 jit_compiler::get(const std::string& name)
|
|
{
|
|
return m_engine->getGlobalValueAddress(name);
|
|
}
|
|
|
|
std::unordered_map<std::string, u64> jit_compiler::add(std::unordered_map<std::string, std::string> data)
|
|
{
|
|
// Lock memory manager
|
|
std::lock_guard lock(s_mutex);
|
|
|
|
std::unordered_map<std::string, u64> result;
|
|
|
|
std::size_t size = 0;
|
|
|
|
for (auto&& pair : data)
|
|
{
|
|
size += ::align(pair.second.size(), 16);
|
|
}
|
|
|
|
utils::memory_commit(s_next, size, utils::protection::wx);
|
|
std::memset(s_next, 0xc3, ::align(size, 4096));
|
|
|
|
for (auto&& pair : data)
|
|
{
|
|
std::memcpy(s_next, pair.second.data(), pair.second.size());
|
|
result.emplace(pair.first, (u64)s_next);
|
|
s_next = (void*)::align((u64)s_next + pair.second.size(), 16);
|
|
}
|
|
|
|
s_next = (void*)::align((u64)s_next, 4096);
|
|
|
|
return result;
|
|
}
|
|
|
|
#endif
|