646     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithDetour()  argument
650   uptr header = (uptr)old_func - kDetourHeaderLen;  in OverrideFunctionWithDetour()
654   if (*(u16*)old_func != kDetourInstruction ||  in OverrideFunctionWithDetour()
667   WriteShortJumpInstruction(old_func, header);  in OverrideFunctionWithDetour()
674     *orig_old_func = old_func + kShortJumpInstructionLength;  in OverrideFunctionWithDetour()
681     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithRedirectJump()  argument
683   if (*(u8*)old_func != 0xE9)  in OverrideFunctionWithRedirectJump()
687     uptr relative_offset = *(u32*)(old_func + 1);  in OverrideFunctionWithRedirectJump()
688     uptr absolute_target = old_func + relative_offset + kJumpInstructionLength;  in OverrideFunctionWithRedirectJump()
694   uptr trampoline = AllocateMemoryForTrampoline(old_func, kDirectBranchLength);  in OverrideFunctionWithRedirectJump()
702   if (!ChangeMemoryProtection(old_func, kJumpInstructionLength, &protection))  in OverrideFunctionWithRedirectJump()
706   WriteJumpInstruction(old_func, FIRST_32_SECOND_64(new_func, trampoline));  in OverrideFunctionWithRedirectJump()
709   if (!RestoreMemoryProtection(old_func, kJumpInstructionLength, protection))  in OverrideFunctionWithRedirectJump()
716     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithHotPatch()  argument
719   uptr header = (uptr)old_func - kHotPatchHeaderLen;  in OverrideFunctionWithHotPatch()
723   size_t instruction_size = GetInstructionSize(old_func);  in OverrideFunctionWithHotPatch()
725       !FunctionHasPadding(old_func, kHotPatchHeaderLen))  in OverrideFunctionWithHotPatch()
731     uptr trampoline = AllocateMemoryForTrampoline(old_func, trampoline_length);  in OverrideFunctionWithHotPatch()
734     if (!CopyInstructions(trampoline, old_func, instruction_size))  in OverrideFunctionWithHotPatch()
737                       old_func + instruction_size);  in OverrideFunctionWithHotPatch()
744   indirect_address = AllocateMemoryForTrampoline(old_func, kAddressLength);  in OverrideFunctionWithHotPatch()
756   WriteShortJumpInstruction(old_func, header);  in OverrideFunctionWithHotPatch()
766     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithTrampoline()  argument
775     instructions_length = RoundUpToInstrBoundary(kBranchLength, old_func);  in OverrideFunctionWithTrampoline()
781     uptr trampoline = AllocateMemoryForTrampoline(old_func, trampoline_length);  in OverrideFunctionWithTrampoline()
784     if (!CopyInstructions(trampoline, old_func, instructions_length))  in OverrideFunctionWithTrampoline()
787                       old_func + instructions_length);  in OverrideFunctionWithTrampoline()
794   if (IsMemoryPadding(old_func - kAddressLength, kAddressLength)) {  in OverrideFunctionWithTrampoline()
795     indirect_address = old_func - kAddressLength;  in OverrideFunctionWithTrampoline()
798     indirect_address = AllocateMemoryForTrampoline(old_func, kAddressLength);  in OverrideFunctionWithTrampoline()
805   uptr patch_address = old_func - padding_length;  in OverrideFunctionWithTrampoline()
812   WriteBranch(old_func, indirect_address, new_func);  in OverrideFunctionWithTrampoline()
822     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunction()  argument
824   if (OverrideFunctionWithDetour(old_func, new_func, orig_old_func))  in OverrideFunction()
827   if (OverrideFunctionWithRedirectJump(old_func, new_func, orig_old_func))  in OverrideFunction()
829   if (OverrideFunctionWithHotPatch(old_func, new_func, orig_old_func))  in OverrideFunction()
831   if (OverrideFunctionWithTrampoline(old_func, new_func, orig_old_func))  in OverrideFunction()