diff options
Diffstat (limited to 'target/linux/generic/hack-5.4/220-arm-gc_sections.patch')
| -rw-r--r-- | target/linux/generic/hack-5.4/220-arm-gc_sections.patch | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/target/linux/generic/hack-5.4/220-arm-gc_sections.patch b/target/linux/generic/hack-5.4/220-arm-gc_sections.patch deleted file mode 100644 index 14e2461797..0000000000 --- a/target/linux/generic/hack-5.4/220-arm-gc_sections.patch +++ /dev/null @@ -1,138 +0,0 @@ -From e3d8676f5722b7622685581e06e8f53e6138e3ab Mon Sep 17 00:00:00 2001 -From: Felix Fietkau <nbd@nbd.name> -Date: Sat, 15 Jul 2017 23:42:36 +0200 -Subject: 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@nbd.name> -Signed-off-by: Jonas Gorski <jogo@openwrt.org> -Signed-off-by: Gabor Juhos <juhosg@openwrt.org> ---- - Makefile | 10 +++---- - arch/arm/Kconfig | 1 + - arch/arm/boot/compressed/Makefile | 1 + - arch/arm/kernel/vmlinux.lds.S | 26 ++++++++-------- - arch/mips/Kconfig | 1 + - arch/mips/kernel/vmlinux.lds.S | 4 +-- - include/asm-generic/vmlinux.lds.h | 63 ++++++++++++++++++++------------------- - 7 files changed, 55 insertions(+), 51 deletions(-) - ---- a/arch/arm/Kconfig -+++ b/arch/arm/Kconfig -@@ -112,6 +112,7 @@ config ARM - select HAVE_UID16 - select HAVE_VIRT_CPU_ACCOUNTING_GEN - select IRQ_FORCED_THREADING -+ select HAVE_LD_DEAD_CODE_DATA_ELIMINATION - select MODULES_USE_ELF_REL - select NEED_DMA_MAP_STATE - select OF_EARLY_FLATTREE if OF ---- a/arch/arm/boot/compressed/Makefile -+++ b/arch/arm/boot/compressed/Makefile -@@ -108,6 +108,7 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y) - ORIG_CFLAGS := $(KBUILD_CFLAGS) - KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) - endif -+KBUILD_CFLAGS_KERNEL := $(patsubst -f%-sections,,$(KBUILD_CFLAGS_KERNEL)) - - # -fstack-protector-strong triggers protection checks in this code, - # but it is being used too early to link to meaningful stack_chk logic. ---- a/arch/arm/kernel/vmlinux.lds.S -+++ b/arch/arm/kernel/vmlinux.lds.S -@@ -73,7 +73,7 @@ SECTIONS - . = ALIGN(4); - __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { - __start___ex_table = .; -- ARM_MMU_KEEP(*(__ex_table)) -+ KEEP(*(__ex_table)) - __stop___ex_table = .; - } - -@@ -100,24 +100,24 @@ SECTIONS - } - .init.arch.info : { - __arch_info_begin = .; -- *(.arch.info.init) -+ KEEP(*(.arch.info.init)) - __arch_info_end = .; - } - .init.tagtable : { - __tagtable_begin = .; -- *(.taglist.init) -+ KEEP(*(.taglist.init)) - __tagtable_end = .; - } - #ifdef CONFIG_SMP_ON_UP - .init.smpalt : { - __smpalt_begin = .; -- *(.alt.smp.init) -+ KEEP(*(.alt.smp.init)) - __smpalt_end = .; - } - #endif - .init.pv_table : { - __pv_table_begin = .; -- *(.pv_table) -+ KEEP(*(.pv_table)) - __pv_table_end = .; - } - ---- a/arch/arm/kernel/vmlinux.lds.h -+++ b/arch/arm/kernel/vmlinux.lds.h -@@ -28,7 +28,7 @@ - #define PROC_INFO \ - . = ALIGN(4); \ - __proc_info_begin = .; \ -- *(.proc.info.init) \ -+ KEEP(*(.proc.info.init)) \ - __proc_info_end = .; - - #define HYPERVISOR_TEXT \ -@@ -39,11 +39,11 @@ - #define IDMAP_TEXT \ - ALIGN_FUNCTION(); \ - __idmap_text_start = .; \ -- *(.idmap.text) \ -+ KEEP(*(.idmap.text)) \ - __idmap_text_end = .; \ - . = ALIGN(PAGE_SIZE); \ - __hyp_idmap_text_start = .; \ -- *(.hyp.idmap.text) \ -+ KEEP(*(.hyp.idmap.text)) \ - __hyp_idmap_text_end = .; - - #define ARM_DISCARD \ -@@ -86,12 +86,12 @@ - . = ALIGN(8); \ - .ARM.unwind_idx : { \ - __start_unwind_idx = .; \ -- *(.ARM.exidx*) \ -+ KEEP(*(.ARM.exidx*)) \ - __stop_unwind_idx = .; \ - } \ - .ARM.unwind_tab : { \ - __start_unwind_tab = .; \ -- *(.ARM.extab*) \ -+ KEEP(*(.ARM.extab*)) \ - __stop_unwind_tab = .; \ - } - -@@ -102,14 +102,14 @@ - #define ARM_VECTORS \ - __vectors_start = .; \ - .vectors 0xffff0000 : AT(__vectors_start) { \ -- *(.vectors) \ -+ KEEP(*(.vectors)) \ - } \ - . = __vectors_start + SIZEOF(.vectors); \ - __vectors_end = .; \ - \ - __stubs_start = .; \ - .stubs ADDR(.vectors) + 0x1000 : AT(__stubs_start) { \ -- *(.stubs) \ -+ KEEP(*(.stubs)) \ - } \ - . = __stubs_start + SIZEOF(.stubs); \ - __stubs_end = .; \ |