From nobody Fri Dec 19 09:45:04 2025 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (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 4259928F95A for ; Thu, 10 Apr 2025 17:36:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744306615; cv=none; b=FDgpBqwUOndrq1xGLsGJClfCMAhYs0N7RMqpzBQUmi+Fgvq334/rke4+lzXqT417VCxVC4V3z2w54E/8yuBki/eKfGkFYQN3j/VwUdxD8basDHO3QCdrcCnm0OLctqnVyM1wTry7+8rjd6JTLvFfvJag+VpS4ggWAdSBkVL9Cd4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744306615; c=relaxed/simple; bh=adtWm6LLbIn1NEAvhqeF9pcSrgZi/NasO8jt5hVXwak=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=uMIvgovSj0OeF0RqlOVaTNPBq72HB+FyKh2AJuQGetADs+0VxkZIdFuQkrEIW7u41u+dxkh334DwTEq1RzxeKLedInBRotO2Rfpaax5JVfpUwZ9Jtjmnc/QXtILqWFtPCCyvBGdnOuLtpjrvX004l8s06LZRsi1fYMFjFvxov74= 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=mLl9qcOo; arc=none smtp.client-ip=209.85.215.202 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="mLl9qcOo" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-af8e645a1d1so818406a12.3 for ; Thu, 10 Apr 2025 10:36:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1744306613; x=1744911413; darn=vger.kernel.org; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :from:to:cc:subject:date:message-id:reply-to; bh=sJlUHd00POlACtSKnVs2Xq2hei3Qf2bYPIcfv/IAydE=; b=mLl9qcOob07t95izV0aZO10hW/pu/fazq1HHNtNDSvMpMfAhLMC/+hLHCmTHGzKODO SCatDrWqdO9SeY61MKVT18BnKAx9HhFZ3U+y1tg+Tpm5Bo8zsirvNz1xOTkbZlbfhhpt ha4yWlckvhnwhjGGvRyrqjI8C58b1o/AXyu/q6sMTdXQpBy/biN3ws4A2qUmTtn8EH18 gzL0b3KEYc5BtEDxJp+mjXWtJrsWSVOLWBYFS+nq+UQgMkCCZgmcfwBW3hMqQ/UI5E8X c1vGTyTdz0MsZi4fms5o7av1ePIiQmlfLhn9uJ5AmWORf/Lep7Vm0qh/Ci696JDAXdP9 4RrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744306613; x=1744911413; h=to:from:subject:message-id:references:mime-version:in-reply-to:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=sJlUHd00POlACtSKnVs2Xq2hei3Qf2bYPIcfv/IAydE=; b=qc5S1Ba9dSGZyzzAb+ivapQJ18EK4sqcksdk7mwdcfFDb73AIEn412AWjxvFyuPO0d 6vJpL0tpC3sbSNryyJs9qw42mRrltXIa0MDBqwvDb0ReJNzQD7jSkij5D89COjbyyIQ6 h77ODpjGWmKlM0/XYzMKF3wQVAVwKJkbCnBVss4bAV8EV5d8x9z9dEqg05Odn2Syqtan DnEvwPdHgOMVrYmc22Ey+z+Y1qGiprDVkrTc5/2kVf1MsV8zr9K8BAUsBZx3KZZZWmB6 qXWVQDP2OSxchSKDXjQ2SZGCqQPdhRRnwpfVbdjLBpy3jm4CgnNGXraks+cVWc7tmLJL mqog== X-Forwarded-Encrypted: i=1; AJvYcCWYq1y4USo0NeXcjbHqypd0Jsed1EC/n4h4jxYhyqBcVcAHa7NL4ge3xkYZO4acHe7a0BnIhINASzKxbg4=@vger.kernel.org X-Gm-Message-State: AOJu0YyR7F61fln1nTQ/GuOblLwItiXRrUk6G9eo1TNiPgaLSbDVaeIU wmCz2Ya0MQRY6JkPWldalPFsueYt4L0fZvUdJmrZL60Fd4EG05dySs61x+46VF4rzxib68GNNg6 NngLM8Q== X-Google-Smtp-Source: AGHT+IGQm8EhNAjZDoDuAti/4OrUKsoaJ3Ygj5yBP/JzVbozppHAIIUQwLauKHLJyFwsGg53JlS/NHqxxMQX X-Received: from pjd15.prod.google.com ([2002:a17:90b:54cf:b0:2ff:5344:b54]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:4a81:b0:2ff:6fc3:79c4 with SMTP id 98e67ed59e1d1-3072ba14733mr4841179a91.27.1744306613560; Thu, 10 Apr 2025 10:36:53 -0700 (PDT) Date: Thu, 10 Apr 2025 10:36:24 -0700 In-Reply-To: <20250410173631.1713627-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250410173631.1713627-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.604.gff1f9ca942-goog Message-ID: <20250410173631.1713627-6-irogers@google.com> Subject: [PATCH v2 05/12] perf parse-events: Add parse_uid_filter helper From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Dapeng Mi , Thomas Richter , Veronika Molnarova , Hao Ge , Howard Chu , Weilin Wang , Levi Yun , "Dr. David Alan Gilbert" , Dominique Martinet , Xu Yang , Tengda Wu , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add parse_uid_filter filter as a helper to parse_filter, that constructs a uid filter string. As uid filters don't work with tracepoint filters, add a is_possible_tp_filter function so the tracepoint filter isn't attempted for tracepoint evsels. Signed-off-by: Ian Rogers --- tools/perf/util/parse-events.c | 19 ++++++++++++++++++- tools/perf/util/parse-events.h | 1 + 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index ad5b40843b18..08ade3d70bc1 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -2456,6 +2456,12 @@ foreach_evsel_in_last_glob(struct evlist *evlist, return 0; } =20 +/* Will a tracepoint filter work for str or should a BPF filter be used? */ +static bool is_possible_tp_filter(const char *str) +{ + return strstr(str, "uid") =3D=3D NULL; +} + static int set_filter(struct evsel *evsel, const void *arg) { const char *str =3D arg; @@ -2468,7 +2474,7 @@ static int set_filter(struct evsel *evsel, const void= *arg) return -1; } =20 - if (evsel->core.attr.type =3D=3D PERF_TYPE_TRACEPOINT) { + if (evsel->core.attr.type =3D=3D PERF_TYPE_TRACEPOINT && is_possible_tp_f= ilter(str)) { if (evsel__append_tp_filter(evsel, str) < 0) { fprintf(stderr, "not enough memory to hold filter string\n"); @@ -2504,6 +2510,17 @@ int parse_filter(const struct option *opt, const cha= r *str, (const void *)str); } =20 +int parse_uid_filter(struct evlist *evlist, uid_t uid) +{ + struct option opt =3D { + .value =3D &evlist, + }; + char buf[128]; + + snprintf(buf, sizeof(buf), "uid =3D=3D %d", uid); + return parse_filter(&opt, buf, /*unset=3D*/0); +} + static int add_exclude_perf_filter(struct evsel *evsel, const void *arg __maybe_unused) { diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index e176a34ab088..289afd42d642 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -45,6 +45,7 @@ static inline int parse_events(struct evlist *evlist, con= st char *str, int parse_event(struct evlist *evlist, const char *str); =20 int parse_filter(const struct option *opt, const char *str, int unset); +int parse_uid_filter(struct evlist *evlist, uid_t uid); int exclude_perf(const struct option *opt, const char *arg, int unset); =20 enum parse_events__term_val_type { --=20 2.49.0.604.gff1f9ca942-goog