Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [PATCH v15 01/26] Documentation/x86: Add CET description | From | "Yu, Yu-cheng" <> | Date | Mon, 30 Nov 2020 10:34:38 -0800 |
| |
On 11/30/2020 10:26 AM, Nick Desaulniers wrote: > (In response to https://lore.kernel.org/lkml/20201110162211.9207-2-yu-cheng.yu@intel.com/) > >> These need to be enabled to build a CET-enabled kernel, and Binutils v2.31 >> and GCC v8.1 or later are required to build a CET kernel. > > What about LLVM? Surely CrOS might be of interest to ship this on (we ship the > equivalent for aarch64 on Android). >
I have not built with LLVM, but think it probably will work as well. I will test it.
>> An application's CET capability is marked in its ELF header and can be >> verified from the following command output, in the NT_GNU_PROPERTY_TYPE_0 >> field: >> >> readelf -n <application> | grep SHSTK >> properties: x86 feature: IBT, SHSTK > > Same for llvm-readelf. >
I will add that to the document.
Thanks, Yu-cheng
| ![\](/images/icornerr.gif) |