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authorAndre Heider <a.heider@gmail.com>2023-02-02 21:33:38 +0100
committerChristian Marangi <ansuelsmth@gmail.com>2023-03-21 18:28:22 +0100
commit07730ff3465d3cede3026cdd1c17453930f055ce (patch)
tree71c8f06b42de3b1ff0d1c02c0068d718c3a08a62 /package/system/mtd
parentda3700988d9e34e380bae21ee23d5458a7e972b4 (diff)
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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 <a.heider@gmail.com>
Diffstat (limited to 'package/system/mtd')
-rw-r--r--package/system/mtd/Makefile4
1 files changed, 2 insertions, 2 deletions
diff --git a/package/system/mtd/Makefile b/package/system/mtd/Makefile
index 1a70a64b7d..d45f06fc43 100644
--- a/package/system/mtd/Makefile
+++ b/package/system/mtd/Makefile
@@ -18,6 +18,7 @@ PKG_LICENSE:=GPL-2.0+
PKG_LICENSE_FILES:=
PKG_FLAGS:=nonshared
+PKG_BUILD_FLAGS:=lto
include $(INCLUDE_DIR)/package.mk
@@ -36,8 +37,7 @@ endef
target=$(firstword $(subst -, ,$(BOARD)))
MAKE_FLAGS += TARGET="$(target)"
-TARGET_CFLAGS += -Dtarget_$(target)=1 -Wall -flto
-TARGET_LDFLAGS += -flto=jobserver
+TARGET_CFLAGS += -Dtarget_$(target)=1 -Wall
ifdef CONFIG_MTD_REDBOOT_PARTS
MAKE_FLAGS += FIS_SUPPORT=1