On Wed, 11 May 2022 18:21:29 +0100, Andre Przywara wrote:
> The "bti" selftests are built with -nostdlib, which apparently
> automatically creates a statically linked binary, which is what we want
> and need for BTI (to avoid interactions with the dynamic linker).
>
> However this is not true when building a PIE binary, which some
> toolchains (Ubuntu) configure as the default.
> When compiling btitest with such a toolchain, it will create a
> dynamically linked binary, which will probably fail some tests, as the
> dynamic linker might not support BTI:
> ===================
> TAP version 13
> 1..18
> not ok 1 nohint_func/call_using_br_x0
> not ok 2 nohint_func/call_using_br_x16
> not ok 3 nohint_func/call_using_blr
> ....
> ===================
>
> [...]
Applied to arm64 (for-next/kselftest), thanks!
[1/1] kselftest/arm64: bti: force static linking
https://git.kernel.org/arm64/c/d7a49291d786
--
Catalin
