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([49.207.59.180]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b2fe1642dfdsm7369494a12.18.2025.06.16.13.12.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Jun 2025 13:12:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1750104755; x=1750709555; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=rMLuv2vyspJx1ktef09ky9DNsdcrDZF/n+8r+bXhZTs=; b=TVez522h9/Ku2fOmOwg8TEpMl82qpb9x5tJ15ix0PzmAJiIJ3YT3h0X72UUpdSYqV6 GKJg52plmNegn6Nj5lkitthQGG0WcaF57kg0rzvlqBuC7335moQ2EDZiYFtQkAgLyEJK SfYLxFMrEP4Z72/UZNY63zkqBelCMzExAuHRM3Bwu0aO64FSMcit4+CUkgbjt/o41jSS gfiFblOqsW1V6HdZA4+83KueadQ2FG6e2To0zVB3ha9xbLOci+XYk/21IEViSBmzv+1n ug9BNSfFfyvPFGUalD9Gv6EIFmt5ZBNg1CibBd47BQl2su+VpivfypJ22wx3TJe2wgy6 4pzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750104755; x=1750709555; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=rMLuv2vyspJx1ktef09ky9DNsdcrDZF/n+8r+bXhZTs=; b=U03KeyLT1Css34rUUaAQH8NyIEFlDbKBDE+UIGBaBCW/7SiPkC9NrDFTjU/Nt+XgDN EWk7ZhIqU0lsCzn0XBSrbAM9uSY7d4CVQEwCpkZ3Rc4YtqsUBREWsfpX7hGcpaCpXSWg /J/U0Qt3Ry530RlJb/29hPWnn+DZjKI5l5PIzRW7tiITPlzx28wKP78+13fC8gLQvwzE +BrFRVNIyc7zhjV3GVlfTLfxrylKPfA3EapIVbQRQZxMV9tr3XxWmqinUSJgqlZC2HRF 1eMG6Ccrb0Y83+3qfu9nkAUZcfQkOrNgjfLA5cXm8boOqaDrrLnGw4tjzREzNs7VYTep Ou8A== X-Gm-Message-State: AOJu0YyZ9lOX+NFbLN7JZAfWzutdyhEv9qVFprjEisf1a7YMYImXnkWF nb8Bw7CNsIpTF0ebAJLjQj9mpanFijelqPwkaI2k/HHIc/HsKaM6g4JU1TF0ggTkFjksnQ== X-Gm-Gg: ASbGnctm7gVaxN7n8VxrArn7N4yKzmrWtpjjwP+py63dMOkaNXnvzY4wM5Z5leptvI3 O61v0CKSSV6+/Eg4ocL2a/HIZLnlHFrOl7ZIHzPb0ActDsAsEsYLK9MltbcQT+8nIjogGO0ug0J 0pcvoANkDENQCPSEmOYlu5txdXPHhtnREg1DLUYa6i1bdMtza1PY2YHR6aDYhsV7ddKe8+EWLCp vSdntnsqYlOj/CsvLD/A2P/e36XcvpQ/kk2BjnKU8rVHQns3iagMKOlSjhLUqZoCNyaRPklaGz8 4byfuo+mBAFiB5xcoAZ79OywwwQVJFFiz/G+YAweXd5hwjJzOoEbQkFBTugoHxeFCAjCBB4VVX8 OpFMzVwM5q10D X-Google-Smtp-Source: AGHT+IHadnjeBaHytxdHlaAAJyLlzEQNf+vnUDIiJhuf8KWg0aTPHDkFbZn20fAEmtl0fLEorIkipA== X-Received: by 2002:a05:6a20:3ca5:b0:20b:a75e:fa32 with SMTP id adf61e73a8af0-21fbd5d2f63mr16670365637.40.1750104755489; Mon, 16 Jun 2025 13:12:35 -0700 (PDT) From: Tanish Desai To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Llu=C3=ADs=20Vilanova?= , Paolo Bonzini , Mads Ynddal , Stefan Hajnoczi , Tanish Desai Subject: [PATCH 3/3] tracetool: remove redundant event_get_state checks Date: Mon, 16 Jun 2025 20:12:22 +0000 Message-Id: <20250616201222.6416-4-tanishdesai37@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250616201222.6416-1-tanishdesai37@gmail.com> References: <20250616201222.6416-1-tanishdesai37@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::434; envelope-from=tanishdesai37@gmail.com; helo=mail-pf1-x434.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1750104820875116600 Content-Type: text/plain; charset="utf-8" Moved trace_event_get_state check from _no_check_trace_foo to trace_foo, an= d removed if (true) checks. The _no_check_trace_foo now only emits backend-specific c= ore logic, avoiding trace event conditionals entirely. This brings conditional logic in format/h.py, reducing duplication across backends and simplifying their code generation. It also removes one conditi= onal branch instruction from the fast path (trace_foo), improving runtime perfor= mance slightly(for some old compiler). --- scripts/tracetool/backend/ftrace.py | 3 --- scripts/tracetool/backend/log.py | 5 +---- scripts/tracetool/backend/simple.py | 7 +------ scripts/tracetool/backend/syslog.py | 7 +------ scripts/tracetool/format/h.py | 3 ++- 5 files changed, 5 insertions(+), 20 deletions(-) diff --git a/scripts/tracetool/backend/ftrace.py b/scripts/tracetool/backen= d/ftrace.py index baed2ae61c..2d6d608add 100644 --- a/scripts/tracetool/backend/ftrace.py +++ b/scripts/tracetool/backend/ftrace.py @@ -34,18 +34,15 @@ def generate_h(event, group): ' char ftrace_buf[MAX_TRACE_STRLEN];', ' int unused __attribute__ ((unused));', ' int trlen;', - ' if (trace_event_get_state(%(event_id)s)) {', '#line %(event_lineno)d "%(event_filename)s"', ' trlen =3D snprintf(ftrace_buf, MAX_TRACE_STRLEN,', ' "%(name)s " %(fmt)s "\\n" %(argnames= )s);', '#line %(out_next_lineno)d "%(out_filename)s"', ' trlen =3D MIN(trlen, MAX_TRACE_STRLEN - 1);', ' unused =3D write(trace_marker_fd, ftrace_buf, trlen);= ', - ' }', ' }', name=3Devent.name, args=3Devent.args, - event_id=3D"TRACE_" + event.name.upper(), event_lineno=3Devent.lineno, event_filename=3Dos.path.relpath(event.filename), fmt=3Devent.fmt.rstrip("\n"), diff --git a/scripts/tracetool/backend/log.py b/scripts/tracetool/backend/l= og.py index f24acad74c..35a3aeee55 100644 --- a/scripts/tracetool/backend/log.py +++ b/scripts/tracetool/backend/log.py @@ -31,9 +31,7 @@ def generate_h(event, group): if len(event.args) > 0: argnames =3D ", " + argnames =20 - cond =3D "trace_event_get_state(%s)" % ("TRACE_" + event.name.upper()) - - out(' if (%(cond)s && qemu_loglevel_mask(LOG_TRACE)) {', + out(' if (qemu_loglevel_mask(LOG_TRACE)) {', ' if (message_with_timestamp) {', ' struct timeval _now;', ' gettimeofday(&_now, NULL);', @@ -49,7 +47,6 @@ def generate_h(event, group): '#line %(out_next_lineno)d "%(out_filename)s"', ' }', ' }', - cond=3Dcond, event_lineno=3Devent.lineno, event_filename=3Dos.path.relpath(event.filename), name=3Devent.name, diff --git a/scripts/tracetool/backend/simple.py b/scripts/tracetool/backen= d/simple.py index 7c84c06b20..ce8036f5da 100644 --- a/scripts/tracetool/backend/simple.py +++ b/scripts/tracetool/backend/simple.py @@ -36,13 +36,8 @@ def generate_h_begin(events, group): =20 =20 def generate_h(event, group): - event_id =3D 'TRACE_' + event.name.upper() - cond =3D "trace_event_get_state(%s)" % event_id - out(' if (%(cond)s) {', - ' _simple_%(api)s(%(args)s);', - ' }', + out(' _simple_%(api)s(%(args)s);', api=3Devent.api(), - cond=3Dcond, args=3D", ".join(event.args.names())) =20 =20 diff --git a/scripts/tracetool/backend/syslog.py b/scripts/tracetool/backen= d/syslog.py index 6fdc1142fb..f84cec641c 100644 --- a/scripts/tracetool/backend/syslog.py +++ b/scripts/tracetool/backend/syslog.py @@ -30,14 +30,9 @@ def generate_h(event, group): if len(event.args) > 0: argnames =3D ", " + argnames =20 - cond =3D "trace_event_get_state(%s)" % ("TRACE_" + event.name.upper()) - - out(' if (%(cond)s) {', - '#line %(event_lineno)d "%(event_filename)s"', + out('#line %(event_lineno)d "%(event_filename)s"', ' syslog(LOG_INFO, "%(name)s " %(fmt)s %(argnames)s);', '#line %(out_next_lineno)d "%(out_filename)s"', - ' }', - cond=3Dcond, event_lineno=3Devent.lineno, event_filename=3Dos.path.relpath(event.filename), name=3Devent.name, diff --git a/scripts/tracetool/format/h.py b/scripts/tracetool/format/h.py index 89d54b9aff..7bbe6d3148 100644 --- a/scripts/tracetool/format/h.py +++ b/scripts/tracetool/format/h.py @@ -71,7 +71,8 @@ def generate(events, backend, group): =20 out('}') =20 - cond =3D "true" + event_id =3D 'TRACE_' + e.name.upper() + cond =3D "trace_event_get_state(%s)" % event_id =20 out('', 'static inline void %(api)s(%(args)s)', --=20 2.34.1