From nobody Sun Feb 8 17:37:44 2026 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 891A6EDB for ; Wed, 20 Mar 2024 16:32:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710952377; cv=none; b=Uzxmaz96PH8UJLcR6SZbwK1/mgakhJNygnunLOqGo7CCf+uaLNdUb3gvjFdzKZme5Ln/xX1F1vO63fbTGXj4/VL5uJt3vXtz347WbDKP0oq+kFe7iRe1S37bfowzehmQaIOHBSllFM1Yh5yh4Emsrjx8eoUjYmTTWE1jx1zgibQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710952377; c=relaxed/simple; bh=RPvZL/F/5+LZWPkRsGvRCYGU0F/BRfHT875AjHjPcQk=; h=Date:Message-Id:Mime-Version:Subject:From:To:Content-Type; b=j9UPn61aPy7HY3WKapEjIvZohlRoarziw78l3AC1tDYnXi3FDnMp2AhA/VavBdto87n/q4hED+0USzu2gJzSOwHSqzGNLe1Matvm1tjXVcPrLvb6zf1p0pd1508gVbYdPSeHvGuaSRe5o/Ad6gTK9C6qpTrTE6SepuhVe8uSMR4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=GpTm3xKu; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="GpTm3xKu" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-dccc49ef73eso9015947276.2 for ; Wed, 20 Mar 2024 09:32:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1710952374; x=1711557174; darn=vger.kernel.org; h=to:from:subject:mime-version:message-id:date:from:to:cc:subject :date:message-id:reply-to; bh=PPh3+JK8STaNVcaoNnrH04Bjmq+JVNkjWGAVdUYYJeY=; b=GpTm3xKuy410sMKsXDSQGUFIj+rNkFZsErRGI/47uYdGayXTv4rxHDu49yW38OC3pQ wmuH5ojL/XEeFlSFhmP9k0unaNCsYYJ/hVXrgintVjT2TmS/halhKarxvlBZbsNGRNqR 1Tm29B+cGE2yJNXyX1+KAvpFHc30NeLnL/gedZmzQpHjsN/33jReS8WzGXQBxMDqXC6h PMQvMHfWbvjyhUFOMuaNes3j4uHoT107GN1gncHvTvRHjNfA6+2x95UBuAfjOxCDz3IK f5DMjQGA/qp4P8JM6V9RpMEGz0XHNNAAF9nr0o6Lu8+azN4dSCX5sivDMg2U+cpf18iy LtAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710952374; x=1711557174; h=to:from:subject:mime-version:message-id:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=PPh3+JK8STaNVcaoNnrH04Bjmq+JVNkjWGAVdUYYJeY=; b=OKzq6MNkEvRtbCkiiJnjb1FtwAzitMJGC/qWOtSV31jnp6AfiVlKv+vH03Yg6oGsK8 aGRvKjQZrxV9PviGlhl/9NCYzPmfZkEuGzx5Oa7bIrJxclNYsVEk6IVw17wdXMJmXq6K mJQnI45bCdaOsOCXa5TzZ0GmIlP/5qnuS3FxVfV7QBOCv1o7UUErQI8SQij+ElAi15yQ ZbMLs74YuPy9sWVgxfnfm/z5kNYc4XW4jlwYQUZk1w2kCc8YalxkB6GP4YIZnZsfpf6x S7RuywW/NkbpubZ9rgi71YRXdBwCeLg/TpNBX+UmK2QgdNZq+i/ehH+s/EZLqlHNSokG 2b+g== X-Forwarded-Encrypted: i=1; AJvYcCXKmcZK8rSbd7AXcaiEsmoUfgPwg3GF9MKWbIdYsmbOeULTgL3Ek9xbSGf/1ve1IEfkkWnQ51PLY9xMH8uQ90db6aVRwSHyYlof2VB8 X-Gm-Message-State: AOJu0Yxb/NYUlDr5wXPDfcpcty10jRyx+CMrB4MUTNx9je+91AMuwD2L 1R2PyVbXSkYSnVUcBlBSmG7BJJ4a6RvDjG4l4+LXUXEVDriFEpKU09rPfsLMlQtk/yr1phApUGn PqFqEvA== X-Google-Smtp-Source: AGHT+IFy9qjZJ8qJt0m0fdcRwFHSNGZaErdUyns14VLHFaZriYh2eKSTtrlv5EWKfPlpoppugb2t3dHqFr41 X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:f4f0:8ad8:3c73:cef7]) (user=irogers job=sendgmr) by 2002:a05:6902:124b:b0:dd9:312c:83c8 with SMTP id t11-20020a056902124b00b00dd9312c83c8mr460549ybu.10.1710952374659; Wed, 20 Mar 2024 09:32:54 -0700 (PDT) Date: Wed, 20 Mar 2024 09:32:44 -0700 Message-Id: <20240320163244.1287780-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.44.0.291.gc1ea87d7ee-goog Subject: [PATCH v1] perf build: Pretend scandirat is missing with msan From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 --- 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 =20 ifeq ($(feature-scandirat), 1) - CFLAGS +=3D -DHAVE_SCANDIRAT_SUPPORT + # Ignore having scandirat with memory sanitizer that lacks an intercepto= r. + ifeq ($(filter s% -fsanitize=3Dmemory%,$(EXTRA_CFLAGS),),) + CFLAGS +=3D -DHAVE_SCANDIRAT_SUPPORT + endif endif =20 ifeq ($(feature-sched_getcpu), 1) --=20 2.44.0.291.gc1ea87d7ee-goog