From patchwork Tue Jan 16 13:52:03 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: 764035 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 407B61BF23 for ; Tue, 16 Jan 2024 13:51:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="katrSkco" Received: by smtp.kernel.org (Postfix) with ESMTPS id CC043C4166C; Tue, 16 Jan 2024 13:51:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705413118; bh=LY6HxNa1Rb7kL6kWsoMm88OVVfL0zYKMiI+DT18wXSc=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=katrSkcoNG8CGfQKRT44TKIUfkOAFQCGTGExOjcZL/HDwceICFA7Ftj88a9juTUZh pbTSd/XF2RwRcraxJFs8A8jitjomn1Wa+WSrT7ym4OZLYerdMztx9YcPlNDde7ak+Z nTsLlsHnDund4Oreme17yL1MBqgofgfF/xmfMytxMQF8YbaYwG6hi/c+l0qASjZTrE UWDXsI8hA8tCK5K7IfUJjjunVuCWzyT4aJFP9jgMWzv8ERHuYUsrOqpR5otEAZvT0O pVNsul2143Jjq4Nmg+GuMFAO1F2u94M1ldNKb4Qqz87Y4ctExBjtPFQDCgdv4DihBb qlWuX5GdkI2kw== 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 B9FB8C4707C; Tue, 16 Jan 2024 13:51:58 +0000 (UTC) From: Emil Velikov via B4 Relay Date: Tue, 16 Jan 2024 13:52:03 +0000 Subject: [PATCH BlueZ 09/10] 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: <20240116-autofoo-v1-9-626f6b54bd06@gmail.com> References: <20240116-autofoo-v1-0-626f6b54bd06@gmail.com> In-Reply-To: <20240116-autofoo-v1-0-626f6b54bd06@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=1705413116; l=776; i=emil.l.velikov@gmail.com; s=20230301; h=from:subject:message-id; bh=tXVcdUfXETqQpcM+wIkv5sahEbGpnPS14+ukiFkfzcc=; b=YJpXGBb1WaXwi5eDQsIi0UBhNBBbCzabSiP2A+Ct6xRvyDikxhZReDeIqGsTqS3CZMg822lFX hzIFEZpe69ZBwYlIena8ier+Ae0HsGw5DkNWFGE3L+rUCBKisSKUy+G 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) ])