From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Changbin Du <changbin.du@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Namhyung Kim <namhyung@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>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] perf trace beauty: Always show mprotect prot even though PROT_NONE
Date: Thu, 18 Apr 2024 11:31:01 -0300 [thread overview]
Message-ID: <ZiEupQ_PDlA_3Lo4@x1> (raw)
In-Reply-To: <20240418131304.3188385-5-changbin.du@huawei.com>
On Thu, Apr 18, 2024 at 09:13:04PM +0800, Changbin Du wrote:
> Do not omit the flags even though it is PROT_NONE.
>
> Signed-off-by: Changbin Du <changbin.du@huawei.com>
> ---
> tools/perf/builtin-trace.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
> index 349550b02f79..7f936f1b5519 100644
> --- a/tools/perf/builtin-trace.c
> +++ b/tools/perf/builtin-trace.c
> @@ -1042,7 +1042,7 @@ static const struct syscall_fmt syscall_fmts[] = {
> [4] = { .scnprintf = SCA_MOVE_MOUNT_FLAGS, /* flags */ }, }, },
> { .name = "mprotect",
> .arg = { [0] = { .scnprintf = SCA_HEX, /* start */ },
> - [2] = { .scnprintf = SCA_MMAP_PROT, /* prot */ }, }, },
> + [2] = { .scnprintf = SCA_MMAP_PROT, .show_zero = true, /* prot */ }, }, },
So since syscall_arg__scnprintf_mmap_prot() special cases 0 to print
NONE for prot... Ok, I'll expand a bit the commit log message _and_ the
syscall_fmts entry for mprotect.
- Arnaldo
> { .name = "mq_unlink",
> .arg = { [0] = { .scnprintf = SCA_FILENAME, /* u_name */ }, }, },
> { .name = "mremap", .hexret = true,
> --
> 2.34.1
prev parent reply other threads:[~2024-04-18 14:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-18 13:13 [PATCH 0/4] perf trace beauty: A fix and some improvements for newfstatat,mprotect Changbin Du
2024-04-18 13:13 ` [PATCH 1/4] perf trace beauty: Fix statx flags printing Changbin Du
2024-04-18 14:35 ` Arnaldo Carvalho de Melo
2024-04-19 1:38 ` duchangbin
2024-04-19 3:45 ` duchangbin
2024-04-18 13:13 ` [PATCH 2/4] perf trace beauty: Beautify newfstatat flags Changbin Du
2024-04-18 13:13 ` [PATCH 3/4] perf trace beauty: Always show param if show_zero is set Changbin Du
2024-04-18 13:13 ` [PATCH 4/4] perf trace beauty: Always show mprotect prot even though PROT_NONE Changbin Du
2024-04-18 14:31 ` Arnaldo Carvalho de Melo [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=ZiEupQ_PDlA_3Lo4@x1 \
--to=acme@kernel.org \
--cc=adrian.hunter@intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=changbin.du@huawei.com \
--cc=irogers@google.com \
--cc=jolsa@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.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;
as well as URLs for NNTP newsgroup(s).