linux-kernel - [PATCH v2 0/4] kbuild: Fixes for AutoFDO and Propeller builds

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Message-ID: <20251014191156.3836703-1-xur@google.com>
Date: Tue, 14 Oct 2025 19:11:52 +0000
From: xur@...gle.com
To: Alexey Gladkov <legion@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
	Ard Biesheuvel <ardb@...nel.org>, Bill Wendling <morbo@...gle.com>, Han Shen <shenhan@...gle.com>, 
	Ingo Molnar <mingo@...nel.org>, Josh Poimboeuf <jpoimboe@...nel.org>, 
	Justin Stitt <justinstitt@...gle.com>, Kees Cook <kees@...nel.org>, 
	Linus Walleij <linus.walleij@...aro.org>, Masahiro Yamada <masahiroy@...nel.org>, 
	Miguel Ojeda <ojeda@...nel.org>, Nathan Chancellor <nathan@...nel.org>, 
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>, Nicolas Schier <nicolas.schier@...ux.dev>, 
	Peter Zijlstra <peterz@...radead.org>, Tamir Duberstein <tamird@...il.com>, 
	Thomas Gleixner <tglx@...utronix.de>, 
	"Thomas Weißschuh" <thomas.weissschuh@...utronix.de>, Yabin Cui <yabinc@...gle.com>, 
	Sriraman Tallam <tmsriram@...gle.com>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org, 
	llvm@...ts.linux.dev, Rong Xu <xur@...gle.com>
Subject: [PATCH v2 0/4] kbuild: Fixes for AutoFDO and Propeller builds

From: Rong Xu <xur@...gle.com>

ChangeLog:
  V2: filter-out -pie in scripts/Makefile.vmlinux_o
      This fixed the failure reported by kernel test robot.
      https://lore.kernel.org/r/202510120709.Wx3q4Ppg-lkp@intel.com/

Rong Xu (4):
  kbuild: Fix Propeller flags
  kbuild: Disable AutoFDO and Propeller flags for kernel modules
  kbuild: Remove MFS flags from Propeller profile generate builds
  kbuild: Add config to assert profile accuracy for aggressive
    optimization

 Makefile                   |  9 +++++----
 arch/Kconfig               | 11 +++++++++++
 scripts/Makefile.autofdo   | 12 +++++++++---
 scripts/Makefile.lib       |  9 ++++++---
 scripts/Makefile.propeller | 20 ++++++++++++++++----
 scripts/Makefile.vmlinux_o |  3 ++-
 6 files changed, 49 insertions(+), 15 deletions(-)


base-commit: 9b332cece987ee1790b2ed4c989e28162fa47860
-- 
2.51.0.788.g6d19910ace-goog