Re: [PATCH 00/13] x86/crypto/asm: objtool support
From: Sami Tolvanen
Date: Wed Feb 24 2021 - 16:49:16 EST
Hi Josh,
On Wed, Feb 24, 2021 at 8:29 AM Josh Poimboeuf <jpoimboe@xxxxxxxxxx> wrote:
>
>
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(-)
Thank you for working on this! I can confirm that this series fixes
the objtool warnings in crypto code with allyesconfig + Clang LTO.
Tested-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx>
Sami