linux-kernel - [PATCH 00/13] x86/crypto/asm: objtool support

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Date:   Wed, 24 Feb 2021 10:29:13 -0600
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     x86@...nel.org, Herbert Xu <herbert@...dor.apana.org.au>
Cc:     linux-kernel@...r.kernel.org, Miroslav Benes <mbenes@...e.cz>,
        Peter Zijlstra <peterz@...radead.org>,
        Eric Biggers <ebiggers@...gle.com>,
        Ard Biesheuvel <ardb@...nel.org>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        linux-crypto@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>
Subject: [PATCH 00/13] x86/crypto/asm: objtool support

Standardize the crypto asm to make it resemble compiler-generated code,
so that objtool can understand it.

This magically enables ORC unwinding from crypto code.  It also fixes
the last known remaining objtool warnings on vmlinux.o, for LTO and
more.

Josh Poimboeuf (13):
  objtool: Support asm jump tables
  x86/crypto/aesni-intel_avx: Remove unused macros
  x86/crypto/aesni-intel_avx: Fix register usage comments
  x86/crypto/aesni-intel_avx: Standardize stack alignment prologue
  x86/crypto/camellia-aesni-avx2: Unconditionally allocate stack buffer
  x86/crypto/crc32c-pcl-intel: Standardize jump table
  x86/crypto/sha_ni: Standardize stack alignment prologue
  x86/crypto/sha1_avx2: Standardize stack alignment prologue
  x86/crypto/sha256-avx2: Standardize stack alignment prologue
  x86/crypto/sha512-avx: Standardize stack alignment prologue
  x86/crypto/sha512-avx2: Standardize stack alignment prologue
  x86/crypto/sha512-ssse3: Standardize stack alignment prologue
  x86/crypto: Enable objtool in crypto code

 arch/x86/crypto/Makefile                     |  2 -
 arch/x86/crypto/aesni-intel_avx-x86_64.S     | 28 +++++--------
 arch/x86/crypto/camellia-aesni-avx2-asm_64.S |  5 +--
 arch/x86/crypto/crc32c-pcl-intel-asm_64.S    |  7 +---
 arch/x86/crypto/sha1_avx2_x86_64_asm.S       |  8 ++--
 arch/x86/crypto/sha1_ni_asm.S                |  8 ++--
 arch/x86/crypto/sha256-avx2-asm.S            | 13 +++---
 arch/x86/crypto/sha512-avx-asm.S             | 41 +++++++++----------
 arch/x86/crypto/sha512-avx2-asm.S            | 42 ++++++++++----------
 arch/x86/crypto/sha512-ssse3-asm.S           | 41 +++++++++----------
 tools/objtool/check.c                        | 14 ++++++-
 11 files changed, 98 insertions(+), 111 deletions(-)

-- 
2.29.2