[PATCH 0/3] lib/crypto: x86/sha: Follow the normal %rbp convention

[Eric Biggers <ebiggers@kernel.org>]

This series updates the x86 SHA-1, SHA-256, and SHA-512 assembly code to
set up %rbp before pushing GPRs rather than after, so that the frame
pointer unwinder will generate call traces reliably.

This doesn't matter much, given that the ORC unwinder is the default,
and the fallback to scanning the stack made call traces sort of "work"
anyway.  But it annoyed me that these assembly functions use the "wrong"
%rbp convention, differing from the C code.

This series is targeting libcrypto-next.

Eric Biggers (3):
  lib/crypto: x86/sha1: Follow the normal %rbp convention
  lib/crypto: x86/sha256: Follow the normal %rbp convention
  lib/crypto: x86/sha512: Follow the normal %rbp convention

 lib/crypto/x86/sha1-avx2-asm.S      | 10 +++++-----
 lib/crypto/x86/sha1-ssse3-and-avx.S |  9 +++++----
 lib/crypto/x86/sha256-avx-asm.S     | 10 +++++-----
 lib/crypto/x86/sha256-avx2-asm.S    | 10 ++++------
 lib/crypto/x86/sha256-ni-asm.S      |  9 +++++----
 lib/crypto/x86/sha256-ssse3-asm.S   |  8 ++++----
 lib/crypto/x86/sha512-avx-asm.S     | 11 ++++++-----
 lib/crypto/x86/sha512-avx2-asm.S    | 11 ++++++-----
 lib/crypto/x86/sha512-ssse3-asm.S   | 11 ++++++-----
 9 files changed, 46 insertions(+), 43 deletions(-)


base-commit: 6a50ce0af5c91fd665d65d357af8ae55db1df7d0
-- 
2.56.0