From: Raoni Fassina Firmino <raoni@linux.ibm.com>
To: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Cc: libc-alpha@sourceware.org, Florian Weimer <fweimer@redhat.com>,
Tulio Magno Quites Machado Filho <tuliom@ascii.art.br>
Subject: Re: [PATCH] powerpc: Remove backtrace implementation
Date: Fri, 26 Feb 2021 14:19:18 -0300 [thread overview]
Message-ID: <20210226171918.dctybyw7b7igyytr@work-tp> (raw)
In-Reply-To: <20210212170941.1786380-1-adhemerval.zanella@linaro.org>
On Fri, Feb 12, 2021 at 02:09:41PM -0300, Adhemerval Zanella wrote:
> The powerpc optimization to provide a fast stacktrace requires some
> ad-hoc code to handle Linux signal frames and the change is fragile
> once the kernel decides to slight change its execution sequence [1].
>
> The generic implementation work as-is and it should be future proof
> since the kernel provides the expected CFI directives in vDSO shared
> page.
>
> Checked on powerpc-linux-gnu, powerpc64le-linux-gnu, and
> powerpc64-linux-gnu.
>
FWIW I also checked on:
- powerpc-linux-gnu (with 64bits 5.10 kernel)
- powerpc64le-linux-gnu (with new 5.11 kernel)
- powerpc64-linux-gnu (with new 5.11 kernel)
With and without Florian's unwind patch series and it seems to be ok in
both cases.
o/
Raoni
prev parent reply other threads:[~2021-02-26 17:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-12 17:09 Adhemerval Zanella
2021-02-12 17:21 ` Florian Weimer
2021-02-12 17:25 ` Adhemerval Zanella
2021-02-22 22:16 ` Tulio Magno Quites Machado Filho
2021-02-23 9:52 ` Florian Weimer
2021-02-23 11:56 ` Adhemerval Zanella
2021-02-23 12:28 ` Florian Weimer
2021-02-23 12:43 ` Adhemerval Zanella
2021-02-26 17:39 ` Raoni Fassina Firmino
2021-04-14 21:37 ` Paul E Murphy
2021-04-15 14:42 ` Tulio Magno Quites Machado Filho
2021-04-15 20:44 ` Adhemerval Zanella
2021-04-27 15:09 ` Florian Weimer
2021-10-14 20:24 ` Raphael M Zinsly
2021-10-14 21:39 ` Tulio Magno Quites Machado Filho
2021-10-20 13:39 ` Adhemerval Zanella
2021-02-26 17:19 ` Raoni Fassina Firmino [this message]
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=20210226171918.dctybyw7b7igyytr@work-tp \
--to=raoni@linux.ibm.com \
--cc=adhemerval.zanella@linaro.org \
--cc=fweimer@redhat.com \
--cc=libc-alpha@sourceware.org \
--cc=tuliom@ascii.art.br \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).