mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-29 18:19:02 +00:00
build: add a config knob to enable LTO for all packages
This enables LTO for all packages which haven't opted-out. Signed-off-by: Andre Heider <a.heider@gmail.com>
This commit is contained in:
parent
1342afcd27
commit
9ea7019ffd
@ -152,6 +152,13 @@ menu "Global build settings"
|
||||
garbage collection capabilites.
|
||||
Packages can choose to opt-out via setting PKG_BUILD_FLAGS:=no-gc-sections
|
||||
|
||||
config USE_LTO
|
||||
bool
|
||||
prompt "Use the link-time optimizer for all packages (EXPERIMENTAL)"
|
||||
help
|
||||
Adds LTO flags to the CFLAGS and LDFLAGS.
|
||||
Packages can choose to opt-out via setting PKG_BUILD_FLAGS:=no-lto
|
||||
|
||||
config IPV6
|
||||
def_bool y
|
||||
|
||||
|
@ -56,7 +56,7 @@ ifeq ($(call pkg_build_flag,gc-sections,$(if $(CONFIG_USE_GC_SECTIONS),1,0)),1)
|
||||
TARGET_CXXFLAGS+= -ffunction-sections -fdata-sections
|
||||
TARGET_LDFLAGS+= -Wl,--gc-sections
|
||||
endif
|
||||
ifeq ($(call pkg_build_flag,lto,0),1)
|
||||
ifeq ($(call pkg_build_flag,lto,$(if $(CONFIG_USE_LTO),1,0)),1)
|
||||
TARGET_CFLAGS+= -flto=auto -fno-fat-lto-objects
|
||||
TARGET_CXXFLAGS+= -flto=auto -fno-fat-lto-objects
|
||||
TARGET_LDFLAGS+= -flto=auto -fuse-linker-plugin
|
||||
|
Loading…
Reference in New Issue
Block a user