diff options
| author | Andre Heider <a.heider@gmail.com> | 2023-02-03 13:15:43 +0100 |
|---|---|---|
| committer | Christian Marangi <ansuelsmth@gmail.com> | 2023-03-21 18:28:23 +0100 |
| commit | aef8bab9d71d85dcb6d99ff70078be3f2bdfbf61 (patch) | |
| tree | 8579f2e4d0d4829c9670e390ba63a48deb3ffcb5 | |
| parent | 07730ff3465d3cede3026cdd1c17453930f055ce (diff) | |
| download | openwrt-aef8bab9d71d85dcb6d99ff70078be3f2bdfbf61.tar.gz openwrt-aef8bab9d71d85dcb6d99ff70078be3f2bdfbf61.tar.bz2 openwrt-aef8bab9d71d85dcb6d99ff70078be3f2bdfbf61.zip | |
build: add a config knob to enable gc-sections for all packages
This enables the linker's garbage collection for all packages which haven't
opted-out.
Signed-off-by: Andre Heider <a.heider@gmail.com>
| -rw-r--r-- | config/Config-build.in | 8 | ||||
| -rw-r--r-- | include/package.mk | 2 |
2 files changed, 9 insertions, 1 deletions
diff --git a/config/Config-build.in b/config/Config-build.in index 8c81ef654c..f93ad37586 100644 --- a/config/Config-build.in +++ b/config/Config-build.in @@ -144,6 +144,14 @@ menu "Global build settings" help Adds -g3 to the CFLAGS. + config USE_GC_SECTIONS + bool + prompt "Dead code and data elimination for all packages (EXPERIMENTAL)" + help + Places functions and data items into its own sections to use the linker's + garbage collection capabilites. + Packages can choose to opt-out via setting PKG_BUILD_FLAGS:=no-gc-sections + config IPV6 def_bool y diff --git a/include/package.mk b/include/package.mk index 0fb947f035..687f74edc1 100644 --- a/include/package.mk +++ b/include/package.mk @@ -51,7 +51,7 @@ ifdef CONFIG_USE_MIPS16 TARGET_CXXFLAGS += -mips16 -minterlink-mips16 endif endif -ifeq ($(call pkg_build_flag,gc-sections,0),1) +ifeq ($(call pkg_build_flag,gc-sections,$(if $(CONFIG_USE_GC_SECTIONS),1,0)),1) TARGET_CFLAGS+= -ffunction-sections -fdata-sections TARGET_CXXFLAGS+= -ffunction-sections -fdata-sections TARGET_LDFLAGS+= -Wl,--gc-sections |