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multi instance fastmem on Linux

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This commit is contained in:
RSDuck
2024-10-30 00:20:12 +01:00
parent 04fe90b437
commit 0a34a21ee7
7 changed files with 66 additions and 36 deletions
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41
src/ARMJIT_Memory.cpp
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@ -627,6 +627,31 @@ bool ARMJIT_Memory::MapAtAddress(u32 addr) noexcept
return true;
}
void ARMJIT_Memory::RegisterFaultHandler()
{
#ifdef _WIN32
#else
struct sigaction sa;
sa.sa_handler = nullptr;
sa.sa_sigaction = &SigsegvHandler;
sa.sa_flags = SA_SIGINFO;
sigemptyset(&sa.sa_mask);
sigaction(SIGSEGV, &sa, &OldSaSegv);
#ifdef __APPLE__
sigaction(SIGBUS, &sa, &OldSaBus);
#endif
#endif
}
void ARMJIT_Memory::UnregisterFaultHandler()
{
sigaction(SIGSEGV, &OldSaSegv, nullptr);
#ifdef __APPLE__
sigaction(SIGBUS, &OldSaBus, nullptr);
#endif
}
bool ARMJIT_Memory::FaultHandler(FaultDescription& faultDesc, melonDS::NDS& nds)
{
if (nds.JIT.JITCompiler.IsJITFault(faultDesc.FaultPC))
@ -725,19 +750,7 @@ ARMJIT_Memory::ARMJIT_Memory(melonDS::NDS& nds) : NDS(nds)
Log(LogLevel::Error, "Failed to allocate memory using ftruncate! (%s)", strerror(errno));
}
struct sigaction sa;
sa.sa_handler = nullptr;
sa.sa_sigaction = &SigsegvHandler;
sa.sa_flags = SA_SIGINFO;
sigemptyset(&sa.sa_mask);
sigaction(SIGSEGV, &sa, &OldSaSegv);
#ifdef __APPLE__
sigaction(SIGBUS, &sa, &OldSaBus);
#endif
mmap(MemoryBase, MemoryTotalSize, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, MemoryFile, 0);
u8* basePtr = MemoryBase;
#endif
}
@ -780,10 +793,6 @@ ARMJIT_Memory::~ARMJIT_Memory() noexcept
ExceptionHandlerHandle = nullptr;
}
#else
sigaction(SIGSEGV, &OldSaSegv, nullptr);
#ifdef __APPLE__
sigaction(SIGBUS, &OldSaBus, nullptr);
#endif
if (MemoryBase)
{
munmap(MemoryBase, VirtmemAreaSize);