sySimpleHook

Warning

Register context of the hooked function is not preserved with this method. Hooks will clobber the volatile registers.

Warning

The overwritten instruction at address is not run or preserved.

Signature

virtual void sySimpleHook(const u32 address, const void* replacement);

Parameters

Parameter	Type	Description
address	u32	The address to hook
replacement	void*	function pointer to the hook body

Description

Injects a hook at the target address. Hooks injected via this method will NOT return execution to the original function by default.

This hook type is commonly used for raw asm functions.

Example Usage

asm void myFunc() {
    // Don't need a stack frame.
    nofralloc

    // Return 0
    li r3, 0
    blr
}

void Init(CoreAPI* api) {
    // NOTE: Execution does not return to hook location
    api->sySimpleHook(0x8000c8b8, reinterpret_cast<void*>(myFunc));
}