Re: [PATCH v3 0/4] perf: Remove libcrypto dependency

[Ian Rogers]

On Wed, Jun 25, 2025 at 1:24 PM Eric Biggers <ebiggers@xxxxxxxxxx> wrote:
>
> This is a reworked version of
> https://lore.kernel.org/all/20250521225307.743726-1-yuzhuo@xxxxxxxxxx/.
> I've changed it to add a new minimal SHA-1 implementation, instead of
> trying to pull in the kernel's SHA-1 implementation which is not really
> designed to be extracted into userspace programs.  I also added a test.
>
> Changed in v3:
>    - Rebased onto perf-tools-next
>    - Removed unnecessary parentheses in array indices in sha1.c
>    - Updated my email address.  I've started consistently using my
>      kernel.org email address.
>
> Eric Biggers (2):
>   perf build: enable -fno-strict-aliasing
>   perf util: add a basic SHA-1 implementation
>
> Yuzhuo Jing (2):
>   perf genelf: Remove libcrypto dependency and use built-in sha1()
>   tools: Remove libcrypto dependency

I'm trying to make it so that the -fno-strict-aliasing is unnecessary
but we can remove that when the changes land.

Reviewed-by: Ian Rogers <irogers@xxxxxxxxxx>

Thanks!
Ian

>  tools/build/Makefile.feature            |  2 -
>  tools/build/feature/Makefile            |  4 -
>  tools/build/feature/test-all.c          |  5 --
>  tools/build/feature/test-libcrypto.c    | 25 -------
>  tools/perf/Documentation/perf-check.txt |  1 -
>  tools/perf/Makefile.config              | 17 +----
>  tools/perf/Makefile.perf                |  3 -
>  tools/perf/builtin-check.c              |  1 -
>  tools/perf/tests/make                   |  4 +-
>  tools/perf/tests/util.c                 | 45 +++++++++++-
>  tools/perf/util/Build                   |  1 +
>  tools/perf/util/genelf.c                | 85 +---------------------
>  tools/perf/util/sha1.c                  | 97 +++++++++++++++++++++++++
>  tools/perf/util/sha1.h                  |  6 ++
>  14 files changed, 156 insertions(+), 140 deletions(-)
>  delete mode 100644 tools/build/feature/test-libcrypto.c
>  create mode 100644 tools/perf/util/sha1.c
>  create mode 100644 tools/perf/util/sha1.h
>
>
> base-commit: 9c9f4a27eb1096beb650f312a1ce996a9960b56c
> --
> 2.50.0
>