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From: Arnd Bergmann <arnd@arndb.de>
To: Josh Poimboeuf <jpoimboe@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	clang-built-linux <clang-built-linux@googlegroups.com>,
	Nick Desaulniers <ndesaulniers@google.com>
Subject: objtool crashes on clang output (drivers/hwmon/pmbus/adm1275.o)
Date: Thu, 11 Jul 2019 14:40:06 +0200	[thread overview]
Message-ID: <CAK8P3a2beBPP+KX4zTfSfFPwo+7ksWZLqZzpP9BJ80iPecg3zA@mail.gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 440 bytes --]

During randconfig testing with clang-9, I came across an object file
that makes objtool segfault, see attachment. Let me know if you need
more information to
debug this.

I also get a ton of objtool warnings building random configurations, but Nick
mentioned that there is still a bug related to asm-goto in the build I'm using
that may be the root cause. Once I have a fixed clang-9 build, I can have a look
at those as well.

       Arnd

[-- Attachment #2: adm1275.o --]
[-- Type: application/x-object, Size: 19592 bytes --]

[-- Attachment #3: config.gz --]
[-- Type: application/gzip, Size: 33240 bytes --]

             reply	other threads:[~2019-07-11 12:40 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-11 12:40 Arnd Bergmann [this message]
2019-07-11 17:26 ` objtool crashes on clang output (drivers/hwmon/pmbus/adm1275.o) Josh Poimboeuf
2019-07-11 21:00   ` Arnd Bergmann
2019-07-11 21:04     ` Jann Horn
2019-07-11 21:29       ` Arnd Bergmann
2019-07-12  7:51         ` Arnd Bergmann
2019-07-12 13:57           ` Josh Poimboeuf
2019-07-12 14:19             ` Arnd Bergmann
2019-07-12 14:29               ` Josh Poimboeuf
2019-07-12 16:59                 ` Nick Desaulniers
2019-07-12 20:40                   ` Arnd Bergmann
2019-07-16 20:24                     ` Nick Desaulniers
2019-07-16 22:05                       ` Arnd Bergmann
2019-07-16 23:03                         ` Josh Poimboeuf
2019-07-18 22:36                           ` Nick Desaulniers
2019-07-18 23:20                             ` Josh Poimboeuf
2019-07-11 23:20       ` Josh Poimboeuf

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