On 01/16/2019 07:11 PM, Stanislav Fomichev wrote:
> Build-id length is not fixed to 20, it can be (`man ld` /--build-id):
> * 128-bit (uuid)
> * 160-bit (sha1)
> * any length specified in ld --build-id=0xhexstring
>
> To fix the issue of missing BPF_STACK_BUILD_ID_VALID for shorter build-ids,
> assume that build-id is somewhere in the range of 1 .. 20.
> Set the remaining bytes to zero.
>
> v2:
> * don't introduce new "len = min(BPF_BUILD_ID_SIZE, nhdr->n_descsz)",
> we already know that nhdr->n_descsz <= BPF_BUILD_ID_SIZE if we enter
> this 'if' condition
>
> Fixes: 615755a77b24 ("bpf: extend stackmap to save binary_build_id+offset
> instead of address")
> Signed-off-by: Stanislav Fomichev <s...@google.com>
Hmm, looks like rest of the v2 series didn't make it to the list.
Please double check; just in case simply resend the full v2 set so
it properly ends up in patchwork.
Thanks,
Daniel
