On Fri, Oct 2, 2026 at 12:57 PM Christophe Leroy (CS GROUP) <[email protected]> wrote: > > > 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)
That's not for you to apply. I'm sending this through my random tree, along with a handful of other things I need to fix. But I wanted to let this cook a bit more. I can add your reviewed-by line, though. Jason
