On Fri, May 31, 2019 at 04:21:48PM +0200, Andrey Konovalov wrote:
On Wed, May 22, 2019 at 4:16 PM Catalin Marinas catalin.marinas@arm.com wrote:
On Mon, May 06, 2019 at 06:31:03PM +0200, Andrey Konovalov wrote:
This patch is a part of a series that extends arm64 kernel ABI to allow to pass tagged user pointers (with the top byte set to something else other than 0x00) as syscall arguments.
This patch adds a simple test, that calls the uname syscall with a tagged user pointer as an argument. Without the kernel accepting tagged user pointers the test fails with EFAULT.
That's probably sufficient for a simple example. Something we could add to Documentation maybe is a small library that can be LD_PRELOAD'ed so that you can run a lot more tests like LTP.
Should I add this into this series, or should this go into Vincenzo's patchset?
If you can tweak the selftest Makefile to build a library and force it with LD_PRELOAD, you can keep it with this patch. It would be easier to extend to other syscall tests, signal handling etc.