From: Ian Rogers <irogers@google.com>
To: Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
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: [PATCH v1] perf build: Pretend scandirat is missing with msan
Date: Wed, 20 Mar 2024 09:32:44 -0700 [thread overview]
Message-ID: <20240320163244.1287780-1-irogers@google.com> (raw)
Memory sanitizer lacks an interceptor for scandirat, reporting all
memory it allocates as uninitialized. Memory sanitizer has a scandir
interceptor so use the fallback function in this case. This allows
perf test to run under memory sanitizer.
Signed-off-by: Ian Rogers <irogers@google.com>
---
tools/perf/Makefile.config | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 1fe8df97fe88..74e0b17050b5 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -486,7 +486,10 @@ ifdef NO_DWARF
endif
ifeq ($(feature-scandirat), 1)
- CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
+ # Ignore having scandirat with memory sanitizer that lacks an interceptor.
+ ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),)
+ CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
+ endif
endif
ifeq ($(feature-sched_getcpu), 1)
--
2.44.0.291.gc1ea87d7ee-goog
next reply other threads:[~2024-03-20 16:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 16:32 Ian Rogers [this message]
2024-03-20 16:36 ` [PATCH v1] perf build: Pretend scandirat is missing with msan Ian Rogers
2024-04-25 18:47 ` Arnaldo Carvalho de Melo
2024-04-25 18:45 ` Arnaldo Carvalho de Melo
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=20240320163244.1287780-1-irogers@google.com \
--to=irogers@google.com \
--cc=acme@kernel.org \
--cc=adrian.hunter@intel.com \
--cc=alexander.shishkin@linux.intel.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).