From nobody Mon Feb 9 01:46:42 2026 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 E9A30229B36 for ; Fri, 25 Apr 2025 21:40:28 +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=1745617230; cv=none; b=Be7C4hdF3VTxorR1+3LQqnSq5XVLXnej/L3ufP0xQaVpFjp2Tcn+rQujrLSnFDFE37ihNRj98Wf8nskrMXdA2cnEYeAMpC6yE0kEje4+mxoluBAk4SbTHg+XX0wQIsY3j8uRd/sS0lCCgrVA4hdbl51nvo0xHf0on4pIGZiroGM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745617230; c=relaxed/simple; bh=gbjo4h3GHQFtFeOpJumdcLDVg3ih8INOSDQkXhcieIM=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Content-Type; b=HvPrJIv6QHKYNssM/mQdcFpjPpQE2rRW52AfXQQAPbN3NQjdeUkFkXGzYCG9BLKvjVHzTx7EQFaWp3/e05ZktkhZJQ7d1eZuXifMaf8SsZnE/uRsek+/Y9b2Qevq1K2KZr+WkxtshzYsOdF/NRmY2GTibZFzGaAWGaPoFrruo8w= 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=XdLYba0l; 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="XdLYba0l" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-b048d1abbbfso2618547a12.0 for ; Fri, 25 Apr 2025 14:40:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1745617228; x=1746222028; 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=bR45kodXZkA7EQ9UBPLhC24dTzfJslYN2Nb1yPoIsJQ=; b=XdLYba0l+X8n6rkMQT8Xj350nyZz6Qg78/3VH2nwTepRw+Kw4qqsq3hFQkZO+ex+Xu C59ILn0/o5H8xOA5er286nwcUglG81PHsDEzuFywVNMg/elUx1SLFrFhv46WuL6kTvfP CLsQjNFsEy+xdmFLFU/QWdHXa/t9oBAZRXC4DQbL4Tbe0dkvGFN3JK2DfYVT76w3hc+/ k+rxf3ZfmAPJ0eocXMq5ifELflQpueyMbnUb5Lmc1lku2ZVq/ot3OrjPBfSr8ZJqqOrh gUsx2zr7Xn3eJEtwDtCQJys4DkCZ0Ks3YztQ1HKg0nCU8ts+t6zGw2+aftF8/sKuvCer tRhA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1745617228; x=1746222028; 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=bR45kodXZkA7EQ9UBPLhC24dTzfJslYN2Nb1yPoIsJQ=; b=XC/9TZiD2Y+80alJkR73U9/8eXhMsckqqVz0LIdPDNj+etQrp27TGQ0eUTIeunbLOP GesTqlW8iGOeUMnghTLJg0+ciAjZO4RLRWraOlp9AM8RB2j2vwSt/x55B6YgoYdvv+nh eowAmsWWbrisxZNEoHZx7SprbAipGiM0qTG7U8449zTyF3l6nG3PiX5LHEVaxAgHoJ5C kW+DXXXvA24ozWK3n8IFCnumAWxoiUXGy1CLgdjXSCTGKdx7+HmPwfyHUX8r9gxqrmFc DqTAeqpsQN49z2h3l449/vWuhAVY0gOA+hwYKrsnHWvn+bJjt2hQ+4PlL7VpFbJINesN qhng== X-Forwarded-Encrypted: i=1; AJvYcCVFv3l3eXWer7NUUn+K4VvwqrFDWp+0IqIL3BdDhM9TQlPaK7pTtnCElm1nS8tGUdUXQ+aFtIYJEomVIEs=@vger.kernel.org X-Gm-Message-State: AOJu0Yxhw17+HzcELd+XHHuM6KSqI/R3tQ+f6JHXUO1TmnZsMi1VwBH6 9E4yq5fiMV4KkfVHmSxqmUjhgG5wd3HNnP+ig31x2rlpFlaEYcew+w2VezUYb9K02gZUvh81Wex U2K1EZQ== X-Google-Smtp-Source: AGHT+IHu6jNsVxg2hinctPs3rIG3x23hifof5G2en1Olm7EYab4lBNXfdy6kgi4Gh069LsoL9yjCAM48VRnS X-Received: from pgbcl20.prod.google.com ([2002:a05:6a02:994:b0:af2:7bd1:57e6]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6a20:12c4:b0:1ee:ef0b:7bf7 with SMTP id adf61e73a8af0-2046a57d131mr1026446637.19.1745617227918; Fri, 25 Apr 2025 14:40:27 -0700 (PDT) Date: Fri, 25 Apr 2025 14:40:01 -0700 In-Reply-To: <20250425214008.176100-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250425214008.176100-1-irogers@google.com> X-Mailer: git-send-email 2.49.0.850.g28803427d3-goog Message-ID: <20250425214008.176100-4-irogers@google.com> Subject: [PATCH v3 03/10] 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 2a60ea06d3bc..540864fc597c 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -2460,6 +2460,12 @@ 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; @@ -2472,7 +2478,7 @@ 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"); @@ -2508,6 +2514,17 @@ 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 2.49.0.850.g28803427d3-goog