From 07730ff3465d3cede3026cdd1c17453930f055ce Mon Sep 17 00:00:00 2001 From: Andre Heider Date: Thu, 2 Feb 2023 21:33:38 +0100 Subject: treewide: add support for "lto" in PKG_BUILD_FLAGS This reduces open coding and allows to easily add a knob to enable it treewide, where chosen packages can still opt-out via "no-lto". Some packages used LTO, but not the linker plugin. This unifies 'em all to attempt to produce better code. Quoting man gcc(1): "This improves the quality of optimization by exposing more code to the link-time optimizer." Also use -flto=auto instead of -flto=jobserver, as it's not guaranteed that every buildsystem uses +$(MAKE) correctly. Signed-off-by: Andre Heider --- package/utils/busybox/Makefile | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'package/utils/busybox/Makefile') diff --git a/package/utils/busybox/Makefile b/package/utils/busybox/Makefile index 9573278945..d7ad8ca8fa 100644 --- a/package/utils/busybox/Makefile +++ b/package/utils/busybox/Makefile @@ -16,6 +16,7 @@ PKG_HASH:=542750c8af7cb2630e201780b4f99f3dcceeb06f505b479ec68241c1e6af61a5 PKG_BUILD_DEPENDS:=BUSYBOX_CONFIG_PAM:libpam PKG_BUILD_PARALLEL:=1 +PKG_BUILD_FLAGS:=lto PKG_CHECK_FORMAT_SECURITY:=0 PKG_LICENSE:=GPL-2.0 @@ -103,9 +104,6 @@ ifeq ($(BUILD_VARIANT),selinux) LDLIBS += selinux sepol endif -TARGET_CFLAGS += -flto -TARGET_LDFLAGS += -flto=jobserver -fuse-linker-plugin - MAKE_VARS := MAKE_FLAGS += \ EXTRA_CFLAGS="$(TARGET_CFLAGS) $(TARGET_CPPFLAGS)" \ -- cgit v1.2.3