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([49.207.58.139]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-747afed4bafsm6189191b3a.79.2025.06.01.11.12.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Jun 2025 11:12:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1748801562; x=1749406362; 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=HtMYrVMuloYt3Yjr4sNHWX4khJZ7APlMmjLEKIR4VtI=; b=IOnfxPpguI6wquYtky79KLaXwrHFDy137NJebL1Hms2H4H0NqUCG2oRzQo8fsM40Be 0TDhITaTtMZXCZcJAwm6lQ6htiGNJVNdJlVndxwYpjZS0QYTsEuEUZDNwzOwDBUk448H 7CA/t1t70P0lVSUUwmosz8X8cdabPanB2DPlYmpjxCetGbRGeYXcQA1NQU2irC7+B7o5 Ngoxt3PcBB1iOfrw1fRrbgM1rUu6/qshXFHTM/3gI2HJvcvZQly6LwJ+v+ZGr01XLFqc weiQAxm0GRPZJhnBPqdG8xUTMOaSQ7AOLNtZgrlA2EbCueobhPZfLt7OpLLXIQX4PVWJ uUNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748801562; x=1749406362; 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=HtMYrVMuloYt3Yjr4sNHWX4khJZ7APlMmjLEKIR4VtI=; b=KSBLd8rCI7TgdhnhekDfEkDfM3+vFmiI6tUHnyuPQzVxvU40qsPPUvUfgH/i59Me5o v4vvoHh7o3L5f9yAFrNSLEuavtxdx92+V5FmmiilCrlRh90d8xZb5j/LxrWc+reBJB1B Ce/AqU2QMjDXukIhhRjWb4LPGkwoS1W5IiXBKb+kZ/LlOwbrN9JH8PNiSAifVmjWjkuw pByvJhW6CcwIqgiVJlhLx26G7qSNK+B5qbhNDYBC31CE/kNydaVkXk0KHBvR88O87mPH BkUmahmJ/zlZlS2GFbxlaE/gTvGEDnf442AjNWv5QyUmlQvY+B/yYUkNedWQy6792xC5 +ujw== X-Gm-Message-State: AOJu0YxFWGSc76FHSPrEUHXY4vwUvLS2rN8vhyzWZEkDlo14u34+q0/B O2YOz3Ba64ow5uemGcpWjqWpOIeLuK6aIiXH2lQi8zQq62b3+Q1G86Zed13g0zO7P7KsKg== X-Gm-Gg: ASbGncsyduZowIKP+8naxl4+VPePNahfHyPHq9Fgm753bz28gm/vvku8o8NwjL8ZRiA bTNzMVo+Bgwy0JuqNFvbpv1VnGff0KLW7ZX8CBYfqDYGYE+OX87YccOFeohT3NwAyWForoytehW dgu9CrtWU11yhSXLyZcetYRakNI3xFxKYc+FbyuwDfbBbAs/h/paW6eBj++cKkSoBobE8azr9nD i/60YbouD2mqV5K2x1x1aVBKbzC/ddbXabjnAE0FIc6jTtDIbBJ/1jpsJDWInpC8YDFPo9wrVO1 sUb67jbpENnA+aqNb/7ZNOyA/jAE9z7HLl66SUBtkkcb/5W58PYkqBiUR2OeSw== X-Google-Smtp-Source: AGHT+IFoygaaqRZY4MpjSkbKv3SZzU7WJHNsxEBnkzkXypS3wGU5cUJeSySRFnUb0pFpWfG7age/tA== X-Received: by 2002:a05:6a20:7344:b0:1f5:7c6f:6c8b with SMTP id adf61e73a8af0-21adff5ae5bmr15141189637.10.1748801561586; Sun, 01 Jun 2025 11:12:41 -0700 (PDT) From: Tanish Desai To: qemu-devel@nongnu.org Cc: Stefan Hajnoczi , pbonzini@redhat.com, Mads Ynddal , Tanish Desai Subject: [PATCH 2/3] trace/ftrace: seperate cold paths of tracing functions Date: Sun, 1 Jun 2025 18:12:30 +0000 Message-Id: <20250601181231.3461-3-tanishdesai37@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250601181231.3461-1-tanishdesai37@gmail.com> References: <20250601181231.3461-1-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::431; envelope-from=tanishdesai37@gmail.com; helo=mail-pf1-x431.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: 1748801633340116600 Content-Type: text/plain; charset="utf-8" Moved rarely used (cold) code from the header file to the C file to avoid unnecessary inlining and reduce binary size. This improves code organization and follows good practices for managing cold paths. Signed-off-by: Tanish Desai --- scripts/tracetool/backend/ftrace.py | 44 +++++++++++++++++++++-------- 1 file changed, 32 insertions(+), 12 deletions(-) diff --git a/scripts/tracetool/backend/ftrace.py b/scripts/tracetool/backen= d/ftrace.py index baed2ae61c..c9717d7b42 100644 --- a/scripts/tracetool/backend/ftrace.py +++ b/scripts/tracetool/backend/ftrace.py @@ -23,6 +23,10 @@ def generate_h_begin(events, group): out('#include "trace/ftrace.h"', '') + for event in events: + out('void _ftrace_%(api)s(%(args)s);', + api=3Devent.api(), + args=3Devent.args) =20 =20 def generate_h(event, group): @@ -30,26 +34,42 @@ def generate_h(event, group): if len(event.args) > 0: argnames =3D ", " + argnames =20 - out(' {', + out(' if (trace_event_get_state(%(event_id)s)) {', + ' _ftrace_%(api)s(%(args)s);', + ' }', + name=3Devent.name, + args=3D", ".join(event.args.names()), + event_id=3D"TRACE_" + event.name.upper(), + event_lineno=3Devent.lineno, + event_filename=3Dos.path.relpath(event.filename), + fmt=3Devent.fmt.rstrip("\n"), + argnames=3Dargnames, + api=3Devent.api() + ) + + +def generate_c(event, group): + argnames =3D ", ".join(event.args.names()) + if len(event.args) > 0: + argnames =3D ", " + argnames + out('void _ftrace_%(api)s(%(args)s){', ' 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);', + ' trlen =3D snprintf(ftrace_buf, MAX_TRACE_STRLEN,', '#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(), + ' "%(name)s " %(fmt)s "\\n" %(argnames)s);', + ' trlen =3D MIN(trlen, MAX_TRACE_STRLEN - 1);', + ' unused =3D write(trace_marker_fd, ftrace_buf, trlen);', + '}', event_lineno=3Devent.lineno, event_filename=3Dos.path.relpath(event.filename), + name=3Devent.name, fmt=3Devent.fmt.rstrip("\n"), - argnames=3Dargnames) + argnames=3Dargnames, + api=3Devent.api(), + args=3Devent.args) =20 =20 def generate_h_backend_dstate(event, group): --=20 2.34.1