linux-kernel - [GIT PULL] objtool fixes

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Message-ID: <Z_gyLithD84kC30H@gmail.com>
Date: Thu, 10 Apr 2025 23:03:42 +0200
From: Ingo Molnar <mingo@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Josh Poimboeuf <jpoimboe@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Borislav Petkov <bp@...en8.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] objtool fixes

Linus,

Please pull the latest objtool/urgent Git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git objtool-urgent-2025-04-10

   # HEAD: 87cb582d2f55d379ce95b5bcc4ec596e29b0a65e objtool: Fix false-positive "ignoring unreachables" warning

Merge note: I amended the top commit (87cb582d2f) shortly before the 
pull request, to fix a changelog formatting error. Code was not 
changed.

Miscellaneous objtool fixes:

 - Remove the recently introduced ANNOTATE_IGNORE_ALTERNATIVE noise
   from clac()/stac() code to make .s files more readable.

 - Fix INSN_SYSCALL / INSN_SYSRET semantics

 - Fix various false-positive warnings

 Thanks,

	Ingo

------------------>
Josh Poimboeuf (6):
      objtool: Fix INSN_CONTEXT_SWITCH handling in validate_unret()
      objtool: Split INSN_CONTEXT_SWITCH into INSN_SYSCALL and INSN_SYSRET
      objtool: Stop UNRET validation on UD2
      objtool, xen: Fix INSN_SYSCALL / INSN_SYSRET semantics
      objtool: Remove ANNOTATE_IGNORE_ALTERNATIVE from CLAC/STAC
      objtool: Fix false-positive "ignoring unreachables" warning


 arch/x86/include/asm/smap.h          | 12 ++++----
 arch/x86/xen/xen-asm.S               |  4 +--
 tools/objtool/arch/x86/decode.c      | 18 ++++++-----
 tools/objtool/arch/x86/special.c     |  2 +-
 tools/objtool/check.c                | 59 +++++++++++++++++++++++++++++++-----
 tools/objtool/include/objtool/arch.h |  3 +-
 6 files changed, 72 insertions(+), 26 deletions(-)