747 	void *trampoline;  in create_trampoline()  local
770 	trampoline = alloc_tramp(size + MCOUNT_INSN_SIZE + sizeof(void *));  in create_trampoline()
771 	if (!trampoline)  in create_trampoline()
777 	ret = probe_kernel_read(trampoline, (void *)start_offset, size);  in create_trampoline()
779 		tramp_free(trampoline, *tramp_size);  in create_trampoline()
783 	ip = (unsigned long)trampoline + size;  in create_trampoline()
787 	memcpy(trampoline + size, jmp, MCOUNT_INSN_SIZE);  in create_trampoline()
797 	ptr = (unsigned long *)(trampoline + size + MCOUNT_INSN_SIZE);  in create_trampoline()
801 	memcpy(&op_ptr, trampoline + op_offset, OP_REF_SIZE);  in create_trampoline()
805 		tramp_free(trampoline, *tramp_size);  in create_trampoline()
811 	offset -= (unsigned long)trampoline + op_offset + OP_REF_SIZE;  in create_trampoline()
816 	memcpy(trampoline + op_offset, &op_ptr, OP_REF_SIZE);  in create_trampoline()
821 	return (unsigned long)trampoline;  in create_trampoline()
849 	if (ops->trampoline) {  in arch_ftrace_update_trampoline()
857 		set_memory_rw(ops->trampoline, npages);  in arch_ftrace_update_trampoline()
859 		ops->trampoline = create_trampoline(ops, &size);  in arch_ftrace_update_trampoline()
860 		if (!ops->trampoline)  in arch_ftrace_update_trampoline()
867 	ip = ops->trampoline + offset;  in arch_ftrace_update_trampoline()
874 	set_memory_ro(ops->trampoline, npages);  in arch_ftrace_update_trampoline()
912 	if (ops && ops->trampoline) {  in static_tramp_func()
918 		if (ops->trampoline == FTRACE_GRAPH_ADDR)  in static_tramp_func()
943 	return addr_from_call((void *)ops->trampoline + offset);  in arch_ftrace_trampoline_func()
951 	tramp_free((void *)ops->trampoline, ops->trampoline_size);  in arch_ftrace_trampoline_free()
952 	ops->trampoline = 0;  in arch_ftrace_trampoline_free()