From: Pavel Machek <pavel@xxxxxx> Date: Mon, 4 Sep 2017 18:25:30 +0200 > Will gcc be able to compile code that uses these automatically? That > does not sound easy to me. Can libc automatically use this in malloc() > to prevent accessing freed data when buffers are overrun? > > Is this for benefit of JITs? Anything that can control mappings and the virtual address used to access memory can use ADI. malloc() is of course one such case. It can map memory with ADI enabled, and return buffer addresses to malloc() callers with the proper virtual address bits set to satisfy the ADI key checks. And by induction anything using malloc() for it's memory allocation gets ADI protection as well. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
