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Fix the JIT Code Memory on ARM64 Macs (#916)

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WaluigiWare64 2021-02-22 15:13:39 +00:00 committed by GitHub
parent 0aa0ae6c69
commit 532dc57025
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 23 additions and 2 deletions
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14
src/ARMJIT.cpp
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@ -25,6 +25,10 @@
#include "Wifi.h"
#include "NDSCart.h"
#if defined(__APPLE__) && defined(__aarch64__)
#include <pthread.h>
#endif
#include "ARMJIT_x64/ARMJIT_Offsets.h"
static_assert(offsetof(ARM, CPSR) == ARM_CPSR_offset, "");
static_assert(offsetof(ARM, Cycles) == ARM_Cycles_offset, "");
@ -306,6 +310,9 @@ void DeInit()
void Reset()
{
#if defined(__APPLE__) && defined(__aarch64__)
pthread_jit_write_protect_np(false);
#endif
ResetBlockCache();
ARMJIT_Memory::Reset();
@ -884,8 +891,13 @@ void CompileBlock(ARM* cpu)
block->StartAddrLocal = localAddr;
FloodFillSetFlags(instrs, i - 1, 0xF);
#if defined(__APPLE__) && defined(__aarch64__)
pthread_jit_write_protect_np(false);
#endif
block->EntryPoint = JITCompiler->CompileBlock(cpu, thumb, instrs, i);
#if defined(__APPLE__) && defined(__aarch64__)
pthread_jit_write_protect_np(true);
#endif
JIT_DEBUGPRINT("block start %p\n", block->EntryPoint);
}

11
src/ARMJIT_A64/ARMJIT_Compiler.cpp
View File

@ -15,6 +15,10 @@ extern char __start__;
#include <stdlib.h>
#ifdef __APPLE__
#include <pthread.h>
#endif
using namespace Arm64Gen;
extern "C" void ARM_Ret();
@ -226,7 +230,12 @@ Compiler::Compiler()
u64 pageSize = sysconf(_SC_PAGE_SIZE);
u8* pageAligned = (u8*)(((u64)JitMem & ~(pageSize - 1)) + pageSize);
u64 alignedSize = (((u64)JitMem + sizeof(JitMem)) & ~(pageSize - 1)) - (u64)pageAligned;
mprotect(pageAligned, alignedSize, PROT_EXEC | PROT_READ | PROT_WRITE);
#ifdef __APPLE__
pageAligned = (u8*)mmap(NULL, 1024*1024*16, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS | MAP_JIT,-1, 0);
pthread_jit_write_protect_np(false);
#else
mprotect(pageAligned, alignedSize, PROT_EXEC | PROT_READ | PROT_WRITE);
#endif
SetCodeBase(pageAligned, pageAligned);
JitMemMainSize = alignedSize;