From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yb1-f202.google.com (mail-yb1-f202.google.com [209.85.219.202]) (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 8DD72EDC for ; Wed, 20 Mar 2024 16:32:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710952377; cv=none; b=f7/xRd5sEqD0YwE4rGW+7jS4/R1QkPOnloloFqMigfCdPE+TgKmZ5AHw9FtCC0cnmzO53AwhZVzbEBz7yxtYGRPpp4G2QeHKLAVE2pr0tGufWl/GuW+8OZvP8FhsgZdcGvgmld2rnzLPkuN2OgMC/O/NT8qOkcMYkVBuNq5a/Yk= 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=209.85.219.202 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-f202.google.com with SMTP id 3f1490d57ef6-dcbee93a3e1so10815245276.3 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=lAl9P3A65fq2Z5dnspWcRG3o1XLf7yPiMjovDKsjT/GIVMYe8iyutTPyyi3EQoAdDu ARSz0NkjVreHl4wAF0R7D0ZI3v6VVNeUlKovL0FazsaTjO2fNvyCDUbny8qIqHCDLCXG YFIawc/2b9xqc2r9g1kg5pNJwWPJs5EqlEFywHAVWpbiu46t5csDMP9/OhF0YlwgN662 uxVnXFiIwJTffCBBOQgAaKiZ59gHKhFpJn4r526ixsCnR8y542S9CXs/jqacHixrT4or ewAevVkaL2KkYD4ltsOtIxxWhVAdJuMqs2TvrvsQwjkZMBKikcQ3E+GrkK+WY61S7m6j o+MQ== X-Forwarded-Encrypted: i=1; AJvYcCWTwjjCL64zC1Qmm9axIX8gvESzZkQRf/qyYeXM5jq2DlDf0t18MWFIQwkX93gKccx3BABOuHmRoCjOdOAzZIoNqJKyQz76IwEMzuodlA1AbA== X-Gm-Message-State: AOJu0YwXu+Ps11YtWg4qn21ItFL6jK+V4VP6vRJf8x8uOkyJ8t82tksY Im4UKd5zU0yCS4Z+jDxXNFWR1o3W/dxko+83GZQb8ZCddXafXPKqyQX0qHIMDs9hd3hAtOqNJeh 3/1hJOg== 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-perf-users@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-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 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