From: Peter Zijlstra <peterz@infradead.org>
To: x86@kernel.org, Josh Poimboeuf <jpoimboe@redhat.com>
Cc: hjl.tools@gmail.com, ndesaulniers@google.com, mbenes@suse.cz,
rostedt@goodmis.org, linux-toolchains@vger.kernel.org
Subject: Re: The trouble with __weak and objtool got worse
Date: Fri, 15 Apr 2022 17:26:33 +0200 [thread overview]
Message-ID: <20220415152633.GA2731@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <YllUqPK4CWZeHku8@hirez.programming.kicks-ass.net>
On Fri, Apr 15, 2022 at 01:19:04PM +0200, Peter Zijlstra wrote:
> Alternatively:
>
> https://sourceware.org/pipermail/binutils/2020-December/114671.html
>
> seems to suggest: -Wa,--generate-unused-section-symbols=yes, ought to
> work, except I'm getting:
>
> $ gcc -O2 -fcf-protection=none -fno-asynchronous-unwind-tables -Wa,--generate-unused-section-symbols=yes -c foo*.c
> as: unrecognized option '--generate-unused-section-symbols=yes'
> as: unrecognized option '--generate-unused-section-symbols=yes'
Reading so hard...
$ gcc -O2 -fcf-protection=none -fno-asynchronous-unwind-tables -Wa,-generate-unused-section-symbols=yes -c foo*.c
seems to actually work.
next prev parent reply other threads:[~2022-04-15 15:26 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-15 11:19 The trouble with __weak and objtool got worse Peter Zijlstra
2022-04-15 14:12 ` Steven Rostedt
2022-04-15 15:31 ` Peter Zijlstra
2022-04-15 15:10 ` Josh Poimboeuf
2022-04-15 15:15 ` Josh Poimboeuf
2022-04-15 15:26 ` Peter Zijlstra [this message]
2022-04-15 17:40 ` Nick Desaulniers
2022-04-15 18:21 ` Josh Poimboeuf
2022-04-15 18:23 ` Josh Poimboeuf
2022-04-15 20:36 ` Nick Desaulniers
2022-04-16 10:49 ` Peter Zijlstra
2022-04-16 10:48 ` Peter Zijlstra
2022-04-16 16:07 ` Josh Poimboeuf
2022-04-16 16:32 ` H.J. Lu
2022-04-17 15:44 ` Peter Zijlstra
2022-04-17 15:46 ` Peter Zijlstra
2022-04-15 18:22 ` Segher Boessenkool
2022-04-15 18:36 ` Nick Desaulniers
2022-04-15 20:07 ` Segher Boessenkool
2022-04-15 20:31 ` Nick Desaulniers
2022-04-15 21:17 ` Fangrui Song
2022-04-15 21:41 ` Segher Boessenkool
2022-04-16 11:09 ` Peter Zijlstra
2022-04-16 10:59 ` Peter Zijlstra
2022-04-16 13:20 ` Segher Boessenkool
2022-04-16 17:59 ` Segher Boessenkool
2022-04-15 21:04 ` H.J. Lu
2022-04-16 11:25 ` Peter Zijlstra
2022-04-16 16:27 ` H.J. Lu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220415152633.GA2731@worktop.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=hjl.tools@gmail.com \
--cc=jpoimboe@redhat.com \
--cc=linux-toolchains@vger.kernel.org \
--cc=mbenes@suse.cz \
--cc=ndesaulniers@google.com \
--cc=rostedt@goodmis.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.