Function PatchCallChecker

Source/Windows/ARM64EC/Module.cpp:196–206

}

void PatchCallChecker() {
  // See the comment for CheckCall in Module.S for why this is necessary
  const auto Module = reinterpret_cast<HMODULE>(&__ImageBase);
  ULONG Size;
  const auto* LoadConfig =
    reinterpret_cast<_IMAGE_LOAD_CONFIG_DIRECTORY64*>(RtlImageDirectoryEntryToData(Module, true, IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG, &Size));
  const auto* CHPEMetadata = reinterpret_cast<IMAGE_ARM64EC_METADATA*>(LoadConfig->CHPEMetadataPointer);
  WriteModuleRVA(Module, CHPEMetadata->__os_arm64x_dispatch_call, &CheckCall);
  WriteModuleRVA(Module, CHPEMetadata->__os_arm64x_dispatch_icall, &CheckCall);
  WriteModuleRVA(Module, CHPEMetadata->__os_arm64x_dispatch_icall_cfg, &CheckCall);
}

// Fills in the syscall numbers necessary to call *Native variants of syscalls from FEX under wine.
void ParseWineSyscallNumbers(HMODULE NtDll) {