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From: Josh Poimboeuf <jpoimboe@kernel.org>
To: x86@kernel.org
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 0/5] objtool: warning improvements
Date: Mon, 27 Mar 2023 09:00:43 -0700	[thread overview]
Message-ID: <cover.1679932620.git.jpoimboe@kernel.org> (raw)

Add some user-friendliness to the warnings:

- Add OBJTOOL_ARGS="--verbose" option for making it easier to debug
  objtool warnings over email

- Remove per-file rate limiting (doesn't make sense for vmlinux.o)

- Add "missing __noreturn" warning

Josh Poimboeuf (5):
  objtool: Add '--verbose' option for disassembling affected functions
  objtool: Combine '--backtrace' with '--verbose'
  objtool: Remove superfluous dead_end_function() check
  objtool: Add per-function rate limiting for unreachable warnings
  objtool: Add "missing __noreturn" warning

 tools/objtool/Documentation/objtool.txt | 12 ++++++
 tools/objtool/builtin-check.c           |  2 +-
 tools/objtool/check.c                   | 45 ++++++++++++---------
 tools/objtool/include/objtool/builtin.h |  2 +-
 tools/objtool/include/objtool/elf.h     |  1 +
 tools/objtool/include/objtool/warn.h    | 52 ++++++++++++++++++++++---
 6 files changed, 88 insertions(+), 26 deletions(-)

-- 
2.39.2


             reply	other threads:[~2023-03-27 16:01 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-27 16:00 Josh Poimboeuf [this message]
2023-03-27 16:00 ` [PATCH 1/5] objtool: Add '--verbose' option for disassembling affected functions Josh Poimboeuf
2023-03-28  8:47   ` Miroslav Benes
2023-03-27 16:00 ` [PATCH 2/5] objtool: Combine '--backtrace' with '--verbose' Josh Poimboeuf
2023-03-28  8:07   ` Peter Zijlstra
2023-03-28 20:19     ` Josh Poimboeuf
2023-03-29  7:25       ` Peter Zijlstra
2023-03-27 16:00 ` [PATCH 3/5] objtool: Remove superfluous dead_end_function() check Josh Poimboeuf
2023-03-27 16:00 ` [PATCH 4/5] objtool: Add per-function rate limiting for unreachable warnings Josh Poimboeuf
2023-03-28  8:11   ` Peter Zijlstra
2023-03-28 20:22     ` Josh Poimboeuf
2023-03-29  7:26       ` Peter Zijlstra
2023-03-28  9:07   ` Miroslav Benes
2023-03-27 16:00 ` [PATCH 5/5] objtool: Add "missing __noreturn" warning Josh Poimboeuf
2023-03-28  9:10   ` Miroslav Benes
2023-03-29 16:24     ` Josh Poimboeuf

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