On Fri, 25 Sep 2026 22:46:32 +0100, Nathan Chancellor wrote:
> After a recent change in LLVM [1], builds with the random vDSO
> implementation, such as PowerPC and RISC-V, fail when checking the vDSO:
>
> arch/powerpc/kernel/vdso/vdso32.so.dbg: dynamic relocations are not
> supported
> arch/riscv/kernel/vdso/vdso.so.dbg: dynamic relocations are not supported
>
> memset() is now generated when zeroing params->reserved for some builds
> because LLVM has an optimization (now run in more instances) that can
> recognize at compile time when it is assigning a static value to a
> contiguous area of memory and turn that into a call to memset(). Both
> clang and GCC assume memset() is always available [2].
>
> [...]
Applied, thanks!
[1/1] random: vDSO: Avoid call to memset() when zeroing reserved in
__cvdso_getrandom_data()
(no commit info)
Best regards,
--
Christophe Leroy (CS GROUP) <[email protected]>
