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2.0 Hook: Memory Editing
DK edited this page Mar 3, 2024
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DKUtil::Hook offers some memory writing methods like other library does.
// write raw data with size
void WriteData(std::uintptr_t a_dst, const void* a_data, const std::size_t a_size) noexcept;
// write immediate value (trivial, integral or standard layout(pod) types)
void WriteImm(std::uintptr_t a_dst, const dku_h_pod_t auto& a_data) noexcept;
// write packed memory structure
void WritePatch(std::uintptr_t a_dst, const Patch* a_patch) noexcept;
void WritePatch(std::uintptr_t a_dst, const Xbyak::CodeGenerator* a_patch) noexcept;Before committing any action that requires a trampoline (e.g. detour hooks, cave hooks, asm patches with exceeding sizes), DKUtil::Hook requires a manual dku::Hook::Trampoline::AllocTrampoline(size) call to initiate a page allocation for trampoline to use. This should be called only once, with sufficient size.
For SKSE, SFSE, and F4SE plugin projects, DKUtil::Hook will use commonlib's trampoline instead of its internal trampoline.