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[147.192.9.144]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-823187716ebsm8661487b3a.66.2026.01.25.23.06.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 25 Jan 2026 23:06:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769411182; x=1770015982; 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=A2m1YYGNyq/Rz1FBTgbyAMMQAXZAUd22fOojccDF0Y8=; b=XYgj41gN2ZOhPFh/8Qs2BKn7z1Uwjg686Nf+pdM65cbtzKfG7Yoth2DfFUiR6WJOpF 9NPeUau+ggna95ae1E4aQY/hAxLMUMNFiLbPjJfNIz62JdG5NJSGczrgHDWKNegHd8w7 RiFJ1QM6SsFJA7tR5MHXlOXrcCN0G5yNntPaDDds8li/w/Qz+l2fR4GdRypeYCsIClVv ZRSxMkRFK1cnyAGRiFEQHRkxorRyx7vGrgh5LYK05xJJqtPx4mMHHTMM4hjCEFhSvOqL 5NixUfBbGY6l0UUfTdaOMc29aN9P4VtBjpMQ5jgZzkhpqWIcl8AuWIF9ykme5vL6dm6N OG0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769411182; x=1770015982; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=A2m1YYGNyq/Rz1FBTgbyAMMQAXZAUd22fOojccDF0Y8=; b=btBsXhdfJ2hRgfVWKx1V7G4uJaZNaQYhR18OKWjOaFB/XEH5QkyQbwJUVDhClYNW4f 1Bpdx5bhlEymheLcNm9+gPE4QYDnajlPtJi0zSXpfy8Xc2tkhpfM65JsPYvGjii7JSw5 t2Bq5/Zp6Qv3iR/LP7Ht05yuiq3NsR8JfCR9+7Ig/j6uhGBYEiY5wbZiEeCAOnaN+q1g SQ0raTCagppHIhWBpiY1FJpzf28jFMVZjX7Nn/MQxoWrTv0Olq4iaPIuvQihXqrY+826 rnycqFf5sDRaqTO4fJsIa24nkY0W48CQunwIeV30PeJlUhkOf3oDVeS5D+wh9Monp1j9 Aohg== X-Gm-Message-State: AOJu0YzaXZJNmp/NcdQAh41ffl7qFYJOJ245WhLwUeqjOQ4h+ZFxnca5 stHg8ovQwSjjSxTQqMWQs0osPWlq5q8HCkCkpUxIA444JmO422iv6qQjB1fT1mw9 X-Gm-Gg: AZuq6aKN0kM3jWpnegcX+A+uBMRk4hanjvyY9KcDbfpp03RIXJ1bdLLnCIYr2XvtsTn Vk9KncuLAa7ykcdv2VpjuMicT79qDuPhUoTk/9II373jCWktWt/TbKQ41iHTHD24oeHiwtVFyHk BW5OlsWEsAJFZy7p9qnz7PcWZPG4wQIb7J/dEmKAvnW4l0jEJ8C8+jFtPQKYYW4WBpdDBjRWSFP vVIvcfnaWJ1ei32ww/U0oX3+VHIiMuVNgzYZkoHj7y93dXkl/d/mgTPbt8KeGR924YVSXWRLrzL 0LyBRhHwjL6ck1RBppZO7jAptm2DlpRzC/bYao63aimitqY14uHcdQDfIfximw30NQjKNtvElX+ Z8AgNOS33qrJtdm9vL/V9HaWAmLRqaG1cXUrdMe1Sg/C2oF3qKGI2GAFVfFtmTMUqd1U12iJ9B/ c/pHdy6WDviOuSXgOpqJBYTqrhilElG/Rs2hLuJEBy3g== X-Received: by 2002:a05:6a00:4b07:b0:822:30e:d15f with SMTP id d2e1a72fcca58-823411d7ee9mr3616085b3a.6.1769411182178; Sun, 25 Jan 2026 23:06:22 -0800 (PST) From: Kohei Tokunaga To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Alex=20Benn=C3=A9e?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Thomas Huth , Paolo Bonzini , Richard Henderson , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , WANG Xuerui , Aurelien Jarno , Huacai Chen , Jiaxun Yang , Aleksandar Rikalo , Palmer Dabbelt , Alistair Francis , Stefan Weil , Kohei Tokunaga , qemu-arm@nongnu.org, qemu-riscv@nongnu.org, Stefan Hajnoczi , Pierrick Bouvier Subject: [PATCH v4 30/33] meson.build: Propagate optimization flag for linking on Emscripten Date: Mon, 26 Jan 2026 07:03:43 +0000 Message-ID: X-Mailer: git-send-email 2.43.0 In-Reply-To: References: 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::433; envelope-from=ktokunaga.mail@gmail.com; helo=mail-pf1-x433.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_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: qemu development 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: 1769412619241158500 Content-Type: text/plain; charset="utf-8" Emscripten uses the optimization flag at the link time to enable optimizations via Binaryen [1]. While meson.build currently recognizes the -Doptimization option, it does not propagate it to the linking. This commit updates meson.build to propagate the optimization flag to the linking when targeting WebAssembly. [1] https://emscripten.org/docs/optimizing/Optimizing-Code.html#how-emscrip= ten-optimizes Signed-off-by: Kohei Tokunaga --- meson.build | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/meson.build b/meson.build index 82d9c94f4a..0bdc350f16 100644 --- a/meson.build +++ b/meson.build @@ -841,6 +841,12 @@ elif host_os =3D=3D 'openbsd' # Disable OpenBSD W^X if available emulator_link_args =3D cc.get_supported_link_arguments('-Wl,-z,wxneede= d') endif +elif host_os =3D=3D 'emscripten' + # Emscripten uses the optimization flag also during the link time. + # https://emscripten.org/docs/optimizing/Optimizing-Code.html#how-emscri= pten-optimizes + if get_option('optimization') !=3D 'plain' + emulator_link_args +=3D ['-O' + get_option('optimization')] + endif endif =20 ############################################### --=20 2.43.0