From: Peter Zijlstra <peterz@infradead.org>
To: Alexandre Chartre <alexandre.chartre@oracle.com>
Cc: "Maciej W. Rozycki" <macro@orcam.me.uk>,
Guenter Roeck <linux@roeck-us.net>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
jpoimboe@kernel.org, david.laight.linux@gmail.com
Subject: Re: [PATCH v6 03/30] objtool: Disassemble code with libopcodes instead of running objdump
Date: Wed, 10 Dec 2025 09:56:38 +0100 [thread overview]
Message-ID: <20251210085638.GI3707837@noisy.programming.kicks-ass.net> (raw)
In-Reply-To: <49230c95-290e-4d14-bc4b-b63a1a07fc98@oracle.com>
On Wed, Dec 10, 2025 at 08:06:51AM +0100, Alexandre Chartre wrote:
> > As attractive as it may seem how is this stuff supposed to fly given that
> > binutils internal libraries promise no stable API to out-of-tree software.
> > The interfaces can change anytime, just as it is with our internals.
>
> Note that bpf (tools/bpf) is also using libbfd and libopcodes.
OTOH tools/perf opted to use libcapstone instead.
next prev parent reply other threads:[~2025-12-10 8:56 UTC|newest]
Thread overview: 110+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-21 9:53 [PATCH v6 00/30] objtool: Function validation tracing Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 01/30] objtool: Move disassembly functions to a separated file Alexandre Chartre
2025-11-24 9:12 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 02/30] objtool: Create disassembly context Alexandre Chartre
2025-11-24 9:12 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 03/30] objtool: Disassemble code with libopcodes instead of running objdump Alexandre Chartre
2025-11-24 9:12 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-25 18:16 ` [PATCH v6 03/30] " Nathan Chancellor
2025-11-26 9:00 ` Alexandre Chartre
2025-11-26 10:07 ` David Laight
2025-11-26 10:29 ` Alexandre Chartre
2025-12-09 6:58 ` Guenter Roeck
2025-12-09 7:51 ` Alexandre Chartre
2025-12-09 15:11 ` Guenter Roeck
2025-12-09 22:25 ` Maciej W. Rozycki
2025-12-10 5:08 ` Guenter Roeck
2025-12-10 7:53 ` Alexandre Chartre
2025-12-10 15:26 ` Guenter Roeck
2025-12-10 16:36 ` Alexandre Chartre
2025-12-10 18:42 ` Guenter Roeck
2025-12-10 21:54 ` Guenter Roeck
2025-12-15 16:00 ` Alexandre Chartre
2025-12-15 16:46 ` Guenter Roeck
2025-12-10 7:06 ` Alexandre Chartre
2025-12-10 8:56 ` Peter Zijlstra [this message]
2025-12-10 8:53 ` Peter Zijlstra
2025-12-10 12:01 ` Maciej W. Rozycki
2025-11-21 9:53 ` [PATCH v6 04/30] tool build: Remove annoying newline in build output Alexandre Chartre
2025-11-24 9:12 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 05/30] objtool: Print symbol during disassembly Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 06/30] objtool: Store instruction disassembly result Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 07/30] objtool: Disassemble instruction on warning or backtrace Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 08/30] objtool: Extract code to validate instruction from the validate branch loop Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 09/30] objtool: Record symbol name max length Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 10/30] objtool: Add option to trace function validation Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 11/30] objtool: Trace instruction state changes during " Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-12-01 20:23 ` [PATCH v6 11/30] " Nathan Chancellor
2025-12-02 1:30 ` Josh Poimboeuf
2025-12-02 8:34 ` Alexandre Chartre
2025-12-02 16:13 ` Josh Poimboeuf
2025-12-02 18:09 ` David Laight
2025-11-21 9:53 ` [PATCH v6 12/30] objtool: Improve register reporting " Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 13/30] objtool: Identify the different types of alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 14/30] objtool: Add functions to better name alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 15/30] objtool: Improve tracing of alternative instructions Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 16/30] objtool: Do not validate IBT for .return_sites and .call_sites Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 17/30] objtool: Add the --disas=<function-pattern> action Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 18/30] objtool: Preserve alternatives order Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 19/30] objtool: Print headers for alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 20/30] objtool: Disassemble group alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 21/30] objtool: Print addresses with alternative instructions Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 22/30] objtool: Disassemble exception table alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 23/30] objtool: Disassemble jump " Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 24/30] objtool: Fix address references in alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 25/30] objtool: Provide access to feature and flags of group alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 26/30] objtool: Function to get the name of a CPU feature Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-24 10:44 ` tip-bot2 for Alexandre Chartre
2025-11-24 11:59 ` Peter Zijlstra
2025-11-24 12:26 ` Borislav Petkov
2025-11-24 12:40 ` Alexandre Chartre
2025-11-24 19:05 ` david laight
2025-11-24 16:43 ` Alexandre Chartre
2025-11-24 20:14 ` Borislav Petkov
2025-11-24 19:49 ` [tip: objtool/core] objtool: Add " tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 27/30] objtool: Improve naming of group alternatives Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-24 10:44 ` tip-bot2 for Alexandre Chartre
2025-11-24 19:49 ` tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 28/30] objtool: Compact output for alternatives with one instruction Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-24 10:43 ` tip-bot2 for Alexandre Chartre
2025-11-24 19:49 ` tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 29/30] objtool: Add wide output for disassembly Alexandre Chartre
2025-11-24 9:11 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-24 10:43 ` tip-bot2 for Alexandre Chartre
2025-11-24 19:49 ` tip-bot2 for Alexandre Chartre
2025-11-21 9:53 ` [PATCH v6 30/30] objtool: Trim trailing NOPs in alternative Alexandre Chartre
2025-11-24 9:10 ` [tip: objtool/core] " tip-bot2 for Alexandre Chartre
2025-11-24 10:43 ` tip-bot2 for Alexandre Chartre
2025-11-24 19:49 ` tip-bot2 for Alexandre Chartre
2025-11-21 10:36 ` [PATCH v6 00/30] objtool: Function validation tracing Peter Zijlstra
2025-11-21 13:16 ` Alexandre Chartre
2025-11-21 13:51 ` Alexandre Chartre
2025-11-21 14:30 ` Peter Zijlstra
2025-11-24 11:04 ` Borislav Petkov
2025-11-24 11:39 ` Alexandre Chartre
2025-11-24 12:39 ` Borislav Petkov
2025-11-24 12:27 ` David Laight
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=20251210085638.GI3707837@noisy.programming.kicks-ass.net \
--to=peterz@infradead.org \
--cc=alexandre.chartre@oracle.com \
--cc=david.laight.linux@gmail.com \
--cc=jpoimboe@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=macro@orcam.me.uk \
--cc=mingo@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox