On Sun, Oct 20, 2024 at 12:14:31PM -0700, Yonghong Song wrote:
SNIP
> +__naked __noinline __used
> +static unsigned long loop_callback(void)
> +{
> + asm volatile (
> + "call %[bpf_get_prandom_u32];"
> + "r1 = 42;"
> + "*(u64 *)(r10 - 512) = r1;"
> + "call cumulative_stack_depth_subprog;"
> + "r0 = 0;"
> + "exit;"
> + :
> + : __imm(bpf_get_prandom_u32)
> + : __clobber_common);
> +}
> +
> +SEC("raw_tp")
> +__description("Private stack, callback")
> +__success
> +__arch_x86_64
> +/* for func loop_callback */
> +__jited("func #1")
> +__jited(" endbr64")
this should fail if CONFIG_X86_KERNEL_IBT is not enabled, right?
hm, but I can see that also in other tests, so I guess it's fine,
should we add it to config.x86_64 ?
jirka
