756     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithDetour()  argument
760   uptr header = (uptr)old_func - kDetourHeaderLen;  in OverrideFunctionWithDetour()
764   if (*(u16*)old_func != kDetourInstruction ||  in OverrideFunctionWithDetour()
777   WriteShortJumpInstruction(old_func, header);  in OverrideFunctionWithDetour()
784     *orig_old_func = old_func + kShortJumpInstructionLength;  in OverrideFunctionWithDetour()
791     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithRedirectJump()  argument
793   if (*(u8*)old_func != 0xE9)  in OverrideFunctionWithRedirectJump()
797     sptr relative_offset = *(s32 *)(old_func + 1);  in OverrideFunctionWithRedirectJump()
798     uptr absolute_target = old_func + relative_offset + kJumpInstructionLength;  in OverrideFunctionWithRedirectJump()
804   uptr trampoline = AllocateMemoryForTrampoline(old_func, kDirectBranchLength);  in OverrideFunctionWithRedirectJump()
812   if (!ChangeMemoryProtection(old_func, kJumpInstructionLength, &protection))  in OverrideFunctionWithRedirectJump()
816   WriteJumpInstruction(old_func, FIRST_32_SECOND_64(new_func, trampoline));  in OverrideFunctionWithRedirectJump()
819   if (!RestoreMemoryProtection(old_func, kJumpInstructionLength, protection))  in OverrideFunctionWithRedirectJump()
826     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithHotPatch()  argument
829   uptr header = (uptr)old_func - kHotPatchHeaderLen;  in OverrideFunctionWithHotPatch()
833   size_t instruction_size = GetInstructionSize(old_func);  in OverrideFunctionWithHotPatch()
835       !FunctionHasPadding(old_func, kHotPatchHeaderLen))  in OverrideFunctionWithHotPatch()
841     uptr trampoline = AllocateMemoryForTrampoline(old_func, trampoline_length);  in OverrideFunctionWithHotPatch()
844     if (!CopyInstructions(trampoline, old_func, instruction_size))  in OverrideFunctionWithHotPatch()
847                       old_func + instruction_size);  in OverrideFunctionWithHotPatch()
854   indirect_address = AllocateMemoryForTrampoline(old_func, kAddressLength);  in OverrideFunctionWithHotPatch()
866   WriteShortJumpInstruction(old_func, header);  in OverrideFunctionWithHotPatch()
876     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunctionWithTrampoline()  argument
885     instructions_length = RoundUpToInstrBoundary(kBranchLength, old_func);  in OverrideFunctionWithTrampoline()
891     uptr trampoline = AllocateMemoryForTrampoline(old_func, trampoline_length);  in OverrideFunctionWithTrampoline()
894     if (!CopyInstructions(trampoline, old_func, instructions_length))  in OverrideFunctionWithTrampoline()
897                       old_func + instructions_length);  in OverrideFunctionWithTrampoline()
904   if (IsMemoryPadding(old_func - kAddressLength, kAddressLength)) {  in OverrideFunctionWithTrampoline()
905     indirect_address = old_func - kAddressLength;  in OverrideFunctionWithTrampoline()
908     indirect_address = AllocateMemoryForTrampoline(old_func, kAddressLength);  in OverrideFunctionWithTrampoline()
915   uptr patch_address = old_func - padding_length;  in OverrideFunctionWithTrampoline()
922   WriteBranch(old_func, indirect_address, new_func);  in OverrideFunctionWithTrampoline()
932     uptr old_func, uptr new_func, uptr *orig_old_func) {  in OverrideFunction()  argument
934   if (OverrideFunctionWithDetour(old_func, new_func, orig_old_func))  in OverrideFunction()
937   if (OverrideFunctionWithRedirectJump(old_func, new_func, orig_old_func))  in OverrideFunction()
939   if (OverrideFunctionWithHotPatch(old_func, new_func, orig_old_func))  in OverrideFunction()
941   if (OverrideFunctionWithTrampoline(old_func, new_func, orig_old_func))  in OverrideFunction()