From patchwork Wed Jan 24 16:20:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emil Velikov via B4 Relay X-Patchwork-Id: 13529392 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DFA1A7CF25 for ; Wed, 24 Jan 2024 16:20:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706113210; cv=none; b=kqSDHxObnykYkRbkNQkbnmvTAu6sLKYis4Qy8GcB9MwbT1kh4KJIU5DtelgaYAetz+jCgCAu7q+o0uYBRtgykWOi9ivpt76UFM2re8hOYXg92YdaMcHysbRTFwhrPZVBJ4jqhc+omkXzdb2qUNEB9BS5VKCp0OuQPCdqMTb0O9w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706113210; c=relaxed/simple; bh=LY6HxNa1Rb7kL6kWsoMm88OVVfL0zYKMiI+DT18wXSc=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=BQTxgoDKeBN+wb+S4QOmLD8ZlGwoLta2+gAnKOeI75LO89cq9mqX6HCh0oCBze6JDV/6Oi6S1dbZXUxJ5hyYCbg7jt/puju8Ol8JvW5AyDAqAudi6owQ6dtwLOk+EdykzXdGHQH1E77meKQXrTwZFpC6aTGB5iHY/X0wYVr+ZAw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WHzs9UK6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WHzs9UK6" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9153BC433B1; Wed, 24 Jan 2024 16:20:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1706113209; bh=LY6HxNa1Rb7kL6kWsoMm88OVVfL0zYKMiI+DT18wXSc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=WHzs9UK6xWwA/88i7xd4tQhIOw/MhuwysJRRTF45/i2r5yrj3qYIP/SO2WkuFfiw0 k/cteV8MJg26XFfX8YJdmhzLGM0ojRdwfSsfvNqe1T8CR3hRTi2kMl+sfl/R536zpa 9ypnEobghKYUWJoDgm3MtFPr6pm3P6Fqh0lBFYWFDjHZ5DXAdkua1jhNukFgxCyZZz RTa1lw88GhnvhAWE6tBjDbqITQsmPQwjmOUxPWiFArTX1QpyjnFdIGjTsqWWGlJlCy csunMpxmY9jdT3Qj9P+Hgrj8zWf93XWmTr20KzZSQlE0fG7V8GA4+YAQJc9d30CXBd bFeU4b+mx5H6A== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7E067C48277; Wed, 24 Jan 2024 16:20:09 +0000 (UTC) From: Emil Velikov via B4 Relay Date: Wed, 24 Jan 2024 16:20:10 +0000 Subject: [PATCH BlueZ v2 5/6] build: enable gc/dead code removal Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240124-autofoo-v2-5-a210f20aa2f7@gmail.com> References: <20240124-autofoo-v2-0-a210f20aa2f7@gmail.com> In-Reply-To: <20240124-autofoo-v2-0-a210f20aa2f7@gmail.com> To: linux-bluetooth@vger.kernel.org Cc: Emil Velikov X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1706113208; l=776; i=emil.l.velikov@gmail.com; s=20230301; h=from:subject:message-id; bh=tXVcdUfXETqQpcM+wIkv5sahEbGpnPS14+ukiFkfzcc=; b=O47pFB1MpHutfgeP+aMWlBF+ARi5rE1aUctgbZlF5tjqT3JInSAszK8MFhNauFUT3ImJQdtfk RYCwnpcXebACBvbPeTzkFwXt9S7YToicJ6vi3y5hWFNMVSbRkUKCo/3 X-Developer-Key: i=emil.l.velikov@gmail.com; a=ed25519; pk=qeUTVTNyI3rcR2CfNNWsloTihgzmtbZo98GdxwZKCkY= X-Endpoint-Received: by B4 Relay for emil.l.velikov@gmail.com/20230301 with auth_id=35 X-Original-From: Emil Velikov Reply-To: From: Emil Velikov Currently, there's plenty of unused code in most binaries. Enable -fdata/function-sections, which allows the linker garbage collection to do its job. On a maintainer build, this reduces the (unstriped) binaries from 117 to 114MiB. --- acinclude.m4 | 2 ++ 1 file changed, 2 insertions(+) diff --git a/acinclude.m4 b/acinclude.m4 index c5d6de7b3..4b73a5bfc 100644 --- a/acinclude.m4 +++ b/acinclude.m4 @@ -134,6 +134,8 @@ AC_DEFUN([MISC_FLAGS], [ misc_cflags="$misc_cflags --coverage" misc_ldflags="$misc_ldflags --coverage" fi + misc_cflags="$misc_cflags -ffunction-sections -fdata-sections" + misc_ldflags="$misc_ldflags -Wl,--gc-sections" AC_SUBST([MISC_CFLAGS], $misc_cflags) AC_SUBST([MISC_LDFLAGS], $misc_ldflags) ])