From: duchangbin <changbin.du@huawei.com>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: duchangbin <changbin.du@huawei.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
"Arnaldo Carvalho de Melo" <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, "Ian Rogers" <irogers@google.com>,
"Liang, Kan" <kan.liang@linux.intel.com>,
"Nick Desaulniers" <ndesaulniers@google.com>,
Bill Wendling <morbo@google.com>,
Justin Stitt <justinstitt@google.com>,
"linux-perf-users@vger.kernel.org"
<linux-perf-users@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"llvm@lists.linux.dev" <llvm@lists.linux.dev>
Subject: Re: [PATCH 2/2] perf: disasm: prefer symsrc_filename for filename
Date: Thu, 13 Jun 2024 09:43:52 +0000 [thread overview]
Message-ID: <39be46d6a5194b6390ed31be67689c6c@huawei.com> (raw)
In-Reply-To: <395cfff7-9692-4123-96b6-353752007f46@intel.com>
On Thu, Jun 13, 2024 at 11:15:28AM +0300, Adrian Hunter wrote:
> On 13/06/24 09:35, Changbin Du wrote:
> > If we already found a debugging version when loading symbols for that dso,
> > then use the same file for disasm instead of looking up in buildid-cache.
>
> In the past, there have been cases where the debugging version has not
> worked for reading object code. I don't remember the details, but the
> symbols and debugging information was OK while the object code was not.
>
> In general, using anything other than the file that was actually executed
> for reading object code seems like a bad idea.
>
Is this a platform specific issue? AFAIK, the binary code in debugging and
non-debugging version should be identical.
>
>
--
Cheers,
Changbin Du
next prev parent reply other threads:[~2024-06-13 9:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-13 6:35 [PATCH 0/2] perf: support specify vdso path in cmdline Changbin Du
2024-06-13 6:35 ` [PATCH 1/2] " Changbin Du
2024-06-13 8:23 ` Adrian Hunter
2024-06-13 9:49 ` duchangbin
2024-06-13 10:19 ` Adrian Hunter
2024-06-14 3:55 ` duchangbin
2024-06-13 6:35 ` [PATCH 2/2] perf: disasm: prefer symsrc_filename for filename Changbin Du
2024-06-13 8:15 ` Adrian Hunter
2024-06-13 9:43 ` duchangbin [this message]
2024-06-13 10:26 ` Adrian Hunter
2024-06-14 3:48 ` duchangbin
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