void WriteFuncStub(u32 stubAddr, u32 symAddr)
{
// Note that this should be J not JAL, as otherwise control will return to the stub..
Memory::Write_U32(MIPS_MAKE_J(symAddr), stubAddr);
// Note: doing that, we can't trace external module calls, so maybe something else should be done to debug more efficiently
// Perhaps a syscall here (and verify support in jit), marking the module by uid (debugIdentifier)?
Memory::Write_U32(MIPS_MAKE_NOP(), stubAddr + 4);
}
void WriteSyscall(const char *moduleName, u32 nib, u32 address)
{
if (nib == 0)
{
Memory::Write_U32(MIPS_MAKE_JR_RA(), address); //patched out?
Memory::Write_U32(MIPS_MAKE_NOP(), address+4); //patched out?
return;
}
Memory::Write_U32(MIPS_MAKE_JR_RA(), address); // jr ra
Memory::Write_U32(GetSyscallOp(moduleName, nib), address + 4);
}
HLEHelperThread::HLEHelperThread(const char *threadName, u32 instructions[], u32 instrCount, u32 prio, int stacksize) {
u32 instrBytes = instrCount * sizeof(u32);
u32 totalBytes = instrBytes + sizeof(u32) * 2;
AllocEntry(totalBytes);
Memory::Memcpy(entry_, instructions, instrBytes);
// Just to simplify things, we add the return here.
Memory::Write_U32(MIPS_MAKE_JR_RA(), entry_ + instrBytes + 0);
Memory::Write_U32(MIPS_MAKE_NOP(), entry_ + instrBytes + 4);
Create(threadName, prio, stacksize);
}
bool WriteSyscall(const char *moduleName, u32 nib, u32 address)
{
if (nib == 0)
{
WARN_LOG_REPORT(HLE, "Wrote patched out nid=0 syscall (%s)", moduleName);
Memory::Write_U32(MIPS_MAKE_JR_RA(), address); //patched out?
Memory::Write_U32(MIPS_MAKE_NOP(), address+4); //patched out?
return true;
}
int modindex = GetModuleIndex(moduleName);
if (modindex != -1)
{
Memory::Write_U32(MIPS_MAKE_JR_RA(), address); // jr ra
Memory::Write_U32(GetSyscallOp(moduleName, nib), address + 4);
return true;
}
else
{
ERROR_LOG_REPORT(HLE, "Unable to write unknown syscall: %s/%08x", moduleName, nib);
return false;
}
}