Re: [6/6] ppc: ebpf/jit: Implement JIT compiler for extended BPF

From: Michael Ellerman
Date: Fri Jun 17 2016 - 08:53:27 EST


On Tue, 2016-07-06 at 13:32:23 UTC, "Naveen N. Rao" wrote:
> diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
> new file mode 100644
> index 0000000..954ff53
> --- /dev/null
> +++ b/arch/powerpc/net/bpf_jit_comp64.c
> @@ -0,0 +1,956 @@
...
> +
> +static void bpf_jit_fill_ill_insns(void *area, unsigned int size)
> +{
> + int *p = area;
> +
> + /* Fill whole space with trap instructions */
> + while (p < (int *)((char *)area + size))
> + *p++ = BREAKPOINT_INSTRUCTION;
> +}

This breaks the build for some configs, presumably you're missing a header:

arch/powerpc/net/bpf_jit_comp64.c:30:10: error: 'BREAKPOINT_INSTRUCTION' undeclared (first use in this function)

http://kisskb.ellerman.id.au/kisskb/buildresult/12720611/

cheers