linux-kernel - Re: [GIT PULL] objtool changes for v5.19

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Date:   Tue, 24 May 2022 08:02:27 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] objtool changes for v5.19


* Ingo Molnar <mingo@...nel.org> wrote:

>  34 files changed, 959 insertions(+), 684 deletions(-)

Note that with your latest tree you'll get 3 new conflicts:

  CONFLICT (content): Merge conflict in scripts/link-vmlinux.sh
  CONFLICT (content): Merge conflict in scripts/Makefile.build
  CONFLICT (content): Merge conflict in arch/x86/Kconfig

If you want to double check, you can find our resolution in tip:x86/merge:

  a1df7cc57786 Merge branch 'objtool/core' into x86/merge, to resolve conflicts

At:

  git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/merge # INTERNAL MERGE TREE, DO NOT PULL

Here's the merge description:

 ===================
 The following commits between objtool/core and various x86 branches conflict:

   968b493173ac x86/mm: Make DMA memory shared for TD guest
   77a512e35db7 x86/boot: Avoid #VE during boot for TDX platforms
   65fab5bc033a x86/tdx: Exclude shared bit from __PHYSICAL_MASK
   41394e33f3a0 x86/tdx: Extend the confidential computing API to support TDX guests
   59bd54a84d15 x86/tdx: Detect running as a TDX guest in early boot
   dbae0a934f09 x86/cpu: Remove CONFIG_X86_SMAP and "nosmap"

 and:

   753da4179d08 objtool: Remove --lto and --vmlinux in favor of --link
   489e355b4225 objtool: Add HAVE_NOINSTR_VALIDATION
   0f620cefd775 objtool: Rename "VMLINUX_VALIDATION" -> "NOINSTR_VALIDATION"
   22102f4559be objtool: Make noinstr hacks optional
   4ab7674f5951 objtool: Make jump label hack optional
   26e176896a5b objtool: Make static call annotation optional
   720644749647 objtool: Make stack validation frame-pointer-specific
   03f16cd020eb objtool: Add CONFIG_OBJTOOL
   7dce62041ac3 objtool: Make stack validation optional
   b51277eb9775 objtool: Ditch subcommands
   2daf7faba7de objtool: Reorganize cmdline options
   4cdfc11b2836 x86/Kconfig: fix the spelling of 'becoming' in X86_KERNEL_IBT config
   4a5de9b76fcb objtool: Enable unreachable warnings for CLANG LTO

 Resolve them:

  - overlapping modifications
  - modifying removed functionality

 Conflicts:
	arch/x86/Kconfig
	scripts/Makefile.build
	scripts/link-vmlinux.sh
 ===================

Thanks,

	Ingo