[BlueZ,09/10] build: enable gc/dead code removal

Message ID	20240116-autofoo-v1-9-626f6b54bd06@gmail.com
State	Superseded
Headers	show 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 <linux-bluetooth@vger.kernel.org>; Tue, 16 Jan 2024 13:51:59 +0000 (UTC) From: Emil Velikov via B4 Relay <devnull+emil.l.velikov.gmail.com@kernel.org> Date: Tue, 16 Jan 2024 13:52:03 +0000 Subject: [PATCH BlueZ 09/10] build: enable gc/dead code removal Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit 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 <emil.velikov@collabora.com> Reply-To: <emil.l.velikov@gmail.com>
Series	Autotools papercuts, linker GC, symlink dbus-org.bluez.obex.service \| expand [BlueZ,00/10] Autotools papercuts, linker GC, symlink dbus-org.bluez.obex.service [BlueZ,01/10] build: remove unused AM_CONDITIONAL [BlueZ,02/10] build: tweak PKG_CHECK_MODULES calls [BlueZ,03/10] build: require libudev 196, circa 2012 [BlueZ,04/10] build: remove dummy {conf,state}{dir,_DATA} [BlueZ,05/10] build: remove unused variable builtin_nodist [BlueZ,06/10] build: remove .service files from DEPENDENCIES lists [BlueZ,07/10] build: remove explicit DEPENDENCIES handling [BlueZ,08/10] build: manage .service.in files via configure.ac [BlueZ,09/10] build: enable gc/dead code removal [BlueZ,10/10] build: install dbus-org.bluez.obex.service symlink

Message ID

20240116-autofoo-v1-9-626f6b54bd06@gmail.com

State

Superseded

Headers

From: Emil Velikov via B4 Relay <devnull+emil.l.velikov.gmail.com@kernel.org>
Date: Tue, 16 Jan 2024 13:52:03 +0000
Subject: [PATCH BlueZ 09/10] build: enable gc/dead code removal
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
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 <emil.velikov@collabora.com>
Reply-To: <emil.l.velikov@gmail.com>

Series

Autotools papercuts, linker GC, symlink dbus-org.bluez.obex.service | expand

Commit Message

Emil Velikov via B4 Relay Jan. 16, 2024, 1:52 p.m. UTC

From: Emil Velikov <emil.velikov@collabora.com>

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)
 ])

[BlueZ,09/10] build: enable gc/dead code removal

Commit Message

Patch