objtool · Supported

Maintainers

• M Josh Poimboeuf <jpoimboe@kernel.org>
• M Peter Zijlstra <peterz@infradead.org>

Paths

• F include/linux/objtool*.h
• F tools/objtool/

Last 30 days

Most active threads (last 7 days)

• DORMANTno replies [PATCH] objtool: Remove redundant hash_init() of the instruction hash
  2026-10-05 22:23 · 0 replies in 7d · Armaan Sandhu <hidden>

Active reviewers (last 30 days)

• Joe Lawrence <joe.lawrence@redhat.com>
  2 attestations (2 Co-developed-by) · last on 2026-09-21
• Puranjay Mohan <puranjay@kernel.org>
  2 attestations (2 Co-developed-by) · last on 2026-09-21
• Nicholas Piggin <npiggin@gmail.com>
  1 attestation (1 Co-developed-by) · last on 2026-09-29
• Dylan Hatch <hidden>
  1 attestation (1 Co-developed-by) · last on 2026-09-21
• Alice Ryhl <aliceryhl@google.com>
  1 attestation (1 Reported-by) · last on 2026-09-18

Recent patches

Most-recent 30 patches in this subsystem on lkml (capped at 30), ordered by date desc.

• DORMANTno replies [PATCH] objtool: Remove redundant hash_init() of the instruction hash
  2026-10-05 · Armaan Sandhu <hidden>
• WARM3d [PATCH v2 3/6] objtool: Fix "can't find starting instruction" warnings on vmlinux
  2026-09-29 · Shivang Upadhyay <hidden>
• WARM3d [PATCH v2 2/6] objtool: Set ELF_F_LAYOUT flag to preserve vmlinux segment layout
  2026-09-29 · Shivang Upadhyay <hidden>
• WARM3d [PATCH v2 4/6] objtool/powerpc: Skip jump destination analysis and unnanotated intra-function call warnings for --ftr-fixup
  2026-09-29 · Shivang Upadhyay <hidden>
• WARM3d [PATCH v2 1/6] objtool/powerpc: Add build-time fixup of alternate feature branch targets
  2026-09-29 · Shivang Upadhyay <hidden>
• DORMANTno replies Re: Linux 7.2.8
  2026-09-25 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• COLD15d [PATCH v4 19/22] objtool: decode instructions and resolve branch targets in parallel
  2026-09-23 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD15d [PATCH v4 18/22] objtool: size the instruction hash to the text
  2026-09-23 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD15d [PATCH v4 17/22] objtool: cache relocations, do less work, eliminate relocation hash
  2026-09-23 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD15d [PATCH v4 16/22] objtool: do not hash DWARF relocations
  2026-09-23 · "Lorenzo Stoakes (ARM)" <ljs@kernel.org>
• COLD15d [PATCH v3 27/28] objtool: Warn about missing/stale ANNOTATE_EXPORTED_NORETURN() usage
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 28/28] fixup! objtool: Add options to write/read exported noreturns to/from a file
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 25/28] objtool: Add ANNOTATE_EXPORTED_NORETURN()
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 26/28] objtool: Annotate all module-exported noreturns and remove noreturns.h
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 24/28] kbuild: Generate the noreturn list and validate modules against it
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 22/28] objtool: Add options to write/read exported noreturns to/from a file
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 20/28] x86/boot: Rework how pi startup symbols get exposed to vmlinux
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 21/28] objtool: Fix noreturn detection for non-sibling jumps to SYM_CODE
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 19/28] x86/xen: Make xen_start_kernel() noreturn
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 17/28] x86/entry: Make rewind_stack_and_make_dead() a real function
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 18/28] x86/xen: Make xen_cpu_bringup_again() a real function
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 16/28] objtool: Detect noreturns in weak functions
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 12/28] kbuild: Defer running objtool to link time for all CFG features
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 10/28] objtool: Add ANNOTATE_IGNORE_NORETURN()
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 05/28] objtool: Refactor the noreturn/dead-end detection
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 06/28] objtool: Ignore traps after noreturn calls in STT_CODE
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 04/28] objtool: Fix dead end detection for sibling calls
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 01/28] objtool: Remove obsolete noreturns.h entries
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD15d [PATCH v3 00/28] objtool: dynamically detect noreturns
  2026-09-21 · Josh Poimboeuf <jpoimboe@kernel.org>
• COLD18d Re: Linux 7.2.7
  2026-09-21 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Quiet for 30+ days

Patches with no review trailers and no replies. Either the author is heads-down elsewhere or these slipped through. Oldest first.

• STALE207d [RFC PATCH v4 2/6] objtool: Set ELF_F_LAYOUT flag to preserve vmlinux segment layout
  2026-03-16 · Sathvika Vasireddy <hidden>
• STALE207d [RFC PATCH v4 3/6] objtool: Fix "can't find starting instruction" warnings on vmlinux
  2026-03-16 · Sathvika Vasireddy <hidden>
• STALE207d [RFC PATCH v4 4/6] objtool/powerpc: Skip jump destination analysis and unnanotated intra-function call warnings for --ftr-fixup
  2026-03-16 · Sathvika Vasireddy <hidden>
• STALE206d [PATCH AUTOSEL 6.19] objtool/klp: Disable unsupported pr_debug() usage
  2026-03-17 · Sasha Levin <sashal@kernel.org>
• STALE193d [PATCH v2 05/12] objtool: Extricate checksum calculation from validate_branch()
  2026-03-17 · Josh Poimboeuf <jpoimboe@kernel.org>
• STALE193d [PATCH v2 11/12] objtool: Introduce objtool for arm64
  2026-03-17 · Josh Poimboeuf <jpoimboe@kernel.org>
• DORMANTno replies [tip: objtool/urgent] objtool/klp: fix data alignment in __clone_symbol()
  2026-03-18 · tip-bot2 for Joe Lawrence <hidden>
• STALE192d Re: Linux 6.18.19
  2026-03-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• DORMANTno replies Re: Linux 6.19.9
  2026-03-19 · Greg Kroah-Hartman <gregkh@linuxfoundation.org>
• STALE170d [RFC PATCH v8 03/10] objtool: Always pass a section to validate_unwind_hints()
  2026-03-24 · Valentin Schneider <vschneid@redhat.com>