Re: [PATCH 6/6] selftests/sgx: Add a bpftrace script for tracking allocation errors

Reinette Chatre
2022-08-30T22:57:44Z

Hi Jarkko,

On 8/29/2022 8:12 PM, Jarkko Sakkinen wrote:
> Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
> ---
> tools/testing/selftests/sgx/alloc-error.bt | 7 +++++++
> 1 file changed, 7 insertions(+)
> create mode 100644 tools/testing/selftests/sgx/alloc-error.bt
>
> diff --git a/tools/testing/selftests/sgx/alloc-error.bt b/tools/testing/selftests/sgx/alloc-error.bt
> new file mode 100644
> index 000000000000..9268d50dea29
> --- /dev/null
> +++ b/tools/testing/selftests/sgx/alloc-error.bt
> @@ -0,0 +1,7 @@
> +kr:sgx_alloc_epc_page /(uint64)retval >= (uint64)(-4095)/ {
> + printf("sgx_alloc_epc_page: retval=%d\n", (int64)retval);
> +}
> +
> +kr:sgx_encl_page_alloc /(uint64)retval >= (uint64)(-4095)/ {
> + printf("sgx_encl_page_alloc: retval=%d\n", (int64)retval);
> +}

Could there be a snippet of comments in this new file to guide users
on how to use this script?

Reinette