diff options
| -rw-r--r-- | target/linux/generic/patches-3.10/220-gc_sections.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.10/220-gc_sections.patch b/target/linux/generic/patches-3.10/220-gc_sections.patch index 54caa855c9..cc40d8e5ff 100644 --- a/target/linux/generic/patches-3.10/220-gc_sections.patch +++ b/target/linux/generic/patches-3.10/220-gc_sections.patch @@ -1,3 +1,15 @@ +From: Felix Fietkau <nbd@openwrt.org> + +use -ffunction-sections, -fdata-sections and --gc-sections + +In combination with kernel symbol export stripping this significantly reduces +the kernel image size. Used on both ARM and MIPS architectures. + +Signed-off-by: Felix Fietkau <nbd@openwrt.org> +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +Signed-off-by: Gabor Juhos <juhosg@openwrt.org> +--- + --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -89,10 +89,14 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin @@ -475,6 +487,23 @@ __stop_unwind_tab = .; } #endif +@@ -158,14 +158,14 @@ SECTIONS + */ + __vectors_start = .; + .vectors 0 : AT(__vectors_start) { +- *(.vectors) ++ KEEP(*(.vectors)) + } + . = __vectors_start + SIZEOF(.vectors); + __vectors_end = .; + + __stubs_start = .; + .stubs 0x1000 : AT(__stubs_start) { +- *(.stubs) ++ KEEP(*(.stubs)) + } + . = __stubs_start + SIZEOF(.stubs); + __stubs_end = .; @@ -179,24 +179,24 @@ SECTIONS } .init.arch.info : { |