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-rw-r--r--target/linux/generic/hack-4.9/220-gc_sections.patch448
1 files changed, 0 insertions, 448 deletions
diff --git a/target/linux/generic/hack-4.9/220-gc_sections.patch b/target/linux/generic/hack-4.9/220-gc_sections.patch
deleted file mode 100644
index 732e38aaf0..0000000000
--- a/target/linux/generic/hack-4.9/220-gc_sections.patch
+++ /dev/null
@@ -1,448 +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/Makefile
-+++ b/Makefile
-@@ -401,6 +401,11 @@ KBUILD_CFLAGS_MODULE := -DMODULE
- KBUILD_LDFLAGS_MODULE = -T $(srctree)/scripts/module-common.lds $(if $(CONFIG_PROFILING),,-s)
- GCC_PLUGINS_CFLAGS :=
-
-+ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
-+KBUILD_CFLAGS_KERNEL += $(call cc-option,-ffunction-sections,)
-+KBUILD_CFLAGS_KERNEL += $(call cc-option,-fdata-sections,)
-+endif
-+
- # Read KERNELRELEASE from include/config/kernel.release (if it exists)
- KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
- KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
-@@ -649,11 +654,6 @@ KBUILD_CFLAGS += $(call cc-disable-warni
- KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
- KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias)
-
--ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
--KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,)
--KBUILD_CFLAGS += $(call cc-option,-fdata-sections,)
--endif
--
- ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
- KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) $(EXTRA_OPTIMIZATION)
- else
---- a/arch/arm/Kconfig
-+++ b/arch/arm/Kconfig
-@@ -81,6 +81,7 @@ config ARM
- select HAVE_UID16
- select HAVE_VIRT_CPU_ACCOUNTING_GEN
- select IRQ_FORCED_THREADING
-+ select LD_DEAD_CODE_DATA_ELIMINATION
- select MODULES_USE_ELF_REL
- select NO_BOOTMEM
- select OF_EARLY_FLATTREE if OF
---- a/arch/arm/boot/compressed/Makefile
-+++ b/arch/arm/boot/compressed/Makefile
-@@ -102,6 +102,7 @@ ifeq ($(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
-@@ -17,7 +17,7 @@
- #define PROC_INFO \
- . = ALIGN(4); \
- VMLINUX_SYMBOL(__proc_info_begin) = .; \
-- *(.proc.info.init) \
-+ KEEP(*(.proc.info.init)) \
- VMLINUX_SYMBOL(__proc_info_end) = .;
-
- #define HYPERVISOR_TEXT \
-@@ -28,11 +28,11 @@
- #define IDMAP_TEXT \
- ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__idmap_text_start) = .; \
-- *(.idmap.text) \
-+ KEEP(*(.idmap.text)) \
- VMLINUX_SYMBOL(__idmap_text_end) = .; \
- . = ALIGN(PAGE_SIZE); \
- VMLINUX_SYMBOL(__hyp_idmap_text_start) = .; \
-- *(.hyp.idmap.text) \
-+ KEEP(*(.hyp.idmap.text)) \
- VMLINUX_SYMBOL(__hyp_idmap_text_end) = .;
-
- #ifdef CONFIG_HOTPLUG_CPU
-@@ -105,7 +105,7 @@ SECTIONS
- _stext = .; /* Text and read-only data */
- IDMAP_TEXT
- __exception_text_start = .;
-- *(.exception.text)
-+ KEEP(*(.exception.text))
- __exception_text_end = .;
- IRQENTRY_TEXT
- SOFTIRQENTRY_TEXT
-@@ -134,7 +134,7 @@ SECTIONS
- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) {
- __start___ex_table = .;
- #ifdef CONFIG_MMU
-- *(__ex_table)
-+ KEEP(*(__ex_table))
- #endif
- __stop___ex_table = .;
- }
-@@ -146,12 +146,12 @@ SECTIONS
- . = 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 = .;
- }
- #endif
-@@ -171,14 +171,14 @@ SECTIONS
- */
- __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 = .;
-@@ -194,24 +194,24 @@ 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 = .;
- }
- .init.data : {
---- a/arch/mips/Kconfig
-+++ b/arch/mips/Kconfig
-@@ -55,6 +55,7 @@ config MIPS
- select CLONE_BACKWARDS
- select HAVE_DEBUG_STACKOVERFLOW
- select HAVE_CC_STACKPROTECTOR
-+ select LD_DEAD_CODE_DATA_ELIMINATION
- select CPU_PM if CPU_IDLE
- select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
- select ARCH_BINFMT_ELF_STATE
---- a/arch/mips/kernel/vmlinux.lds.S
-+++ b/arch/mips/kernel/vmlinux.lds.S
-@@ -71,7 +71,7 @@ SECTIONS
- /* Exception table for data bus errors */
- __dbe_table : {
- __start___dbe_table = .;
-- *(__dbe_table)
-+ KEEP(*(__dbe_table))
- __stop___dbe_table = .;
- }
-
-@@ -121,7 +121,7 @@ SECTIONS
- . = ALIGN(4);
- .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
- __mips_machines_start = .;
-- *(.mips.machines.init)
-+ KEEP(*(.mips.machines.init))
- __mips_machines_end = .;
- }
-
---- a/include/asm-generic/vmlinux.lds.h
-+++ b/include/asm-generic/vmlinux.lds.h
-@@ -105,7 +105,7 @@
- #ifdef CONFIG_FTRACE_MCOUNT_RECORD
- #define MCOUNT_REC() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_mcount_loc) = .; \
-- *(__mcount_loc) \
-+ KEEP(*(__mcount_loc)) \
- VMLINUX_SYMBOL(__stop_mcount_loc) = .;
- #else
- #define MCOUNT_REC()
-@@ -113,7 +113,7 @@
-
- #ifdef CONFIG_TRACE_BRANCH_PROFILING
- #define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \
-- *(_ftrace_annotated_branch) \
-+ KEEP(*(_ftrace_annotated_branch)) \
- VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .;
- #else
- #define LIKELY_PROFILE()
-@@ -121,7 +121,7 @@
-
- #ifdef CONFIG_PROFILE_ALL_BRANCHES
- #define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \
-- *(_ftrace_branch) \
-+ KEEP(*(_ftrace_branch)) \
- VMLINUX_SYMBOL(__stop_branch_profile) = .;
- #else
- #define BRANCH_PROFILE()
-@@ -130,7 +130,7 @@
- #ifdef CONFIG_KPROBES
- #define KPROBE_BLACKLIST() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_kprobe_blacklist) = .; \
-- *(_kprobe_blacklist) \
-+ KEEP(*(_kprobe_blacklist)) \
- VMLINUX_SYMBOL(__stop_kprobe_blacklist) = .;
- #else
- #define KPROBE_BLACKLIST()
-@@ -139,10 +139,10 @@
- #ifdef CONFIG_EVENT_TRACING
- #define FTRACE_EVENTS() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_ftrace_events) = .; \
-- *(_ftrace_events) \
-+ KEEP(*(_ftrace_events)) \
- VMLINUX_SYMBOL(__stop_ftrace_events) = .; \
- VMLINUX_SYMBOL(__start_ftrace_enum_maps) = .; \
-- *(_ftrace_enum_map) \
-+ KEEP(*(_ftrace_enum_map)) \
- VMLINUX_SYMBOL(__stop_ftrace_enum_maps) = .;
- #else
- #define FTRACE_EVENTS()
-@@ -163,7 +163,7 @@
- #ifdef CONFIG_FTRACE_SYSCALLS
- #define TRACE_SYSCALLS() . = ALIGN(8); \
- VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \
-- *(__syscalls_metadata) \
-+ KEEP(*(__syscalls_metadata)) \
- VMLINUX_SYMBOL(__stop_syscalls_metadata) = .;
- #else
- #define TRACE_SYSCALLS()
-@@ -172,7 +172,7 @@
- #ifdef CONFIG_SERIAL_EARLYCON
- #define EARLYCON_TABLE() . = ALIGN(8); \
- VMLINUX_SYMBOL(__earlycon_table) = .; \
-- *(__earlycon_table) \
-+ KEEP(*(__earlycon_table)) \
- VMLINUX_SYMBOL(__earlycon_table_end) = .;
- #else
- #define EARLYCON_TABLE()
-@@ -185,8 +185,8 @@
- #define _OF_TABLE_1(name) \
- . = ALIGN(8); \
- VMLINUX_SYMBOL(__##name##_of_table) = .; \
-- *(__##name##_of_table) \
-- *(__##name##_of_table_end)
-+ KEEP(*(__##name##_of_table)) \
-+ KEEP(*(__##name##_of_table_end))
-
- #define CLKSRC_OF_TABLES() OF_TABLE(CONFIG_CLKSRC_OF, clksrc)
- #define IRQCHIP_OF_MATCH_TABLE() OF_TABLE(CONFIG_IRQCHIP, irqchip)
-@@ -209,7 +209,7 @@
- #define KERNEL_DTB() \
- STRUCT_ALIGN(); \
- VMLINUX_SYMBOL(__dtb_start) = .; \
-- *(.dtb.init.rodata) \
-+ KEEP(*(.dtb.init.rodata)) \
- VMLINUX_SYMBOL(__dtb_end) = .;
-
- /*
-@@ -227,16 +227,17 @@
- /* implement dynamic printk debug */ \
- . = ALIGN(8); \
- VMLINUX_SYMBOL(__start___jump_table) = .; \
-- *(__jump_table) \
-+ KEEP(*(__jump_table)) \
- VMLINUX_SYMBOL(__stop___jump_table) = .; \
- . = ALIGN(8); \
- VMLINUX_SYMBOL(__start___verbose) = .; \
-- *(__verbose) \
-+ KEEP(*(__verbose)) \
- VMLINUX_SYMBOL(__stop___verbose) = .; \
- LIKELY_PROFILE() \
- BRANCH_PROFILE() \
- TRACE_PRINTKS() \
-- TRACEPOINT_STR()
-+ TRACEPOINT_STR() \
-+ *(.data.[a-zA-Z_]*)
-
- /*
- * Data section helpers
-@@ -304,35 +305,35 @@
- /* PCI quirks */ \
- .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \
-- *(.pci_fixup_early) \
-+ KEEP(*(.pci_fixup_early)) \
- VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \
-- *(.pci_fixup_header) \
-+ KEEP(*(.pci_fixup_header)) \
- VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \
-- *(.pci_fixup_final) \
-+ KEEP(*(.pci_fixup_final)) \
- VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \
-- *(.pci_fixup_enable) \
-+ KEEP(*(.pci_fixup_enable)) \
- VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \
-- *(.pci_fixup_resume) \
-+ KEEP(*(.pci_fixup_resume)) \
- VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \
-- *(.pci_fixup_resume_early) \
-+ KEEP(*(.pci_fixup_resume_early)) \
- VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \
-- *(.pci_fixup_suspend) \
-+ KEEP(*(.pci_fixup_suspend)) \
- VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \
- VMLINUX_SYMBOL(__start_pci_fixups_suspend_late) = .; \
-- *(.pci_fixup_suspend_late) \
-+ KEEP(*(.pci_fixup_suspend_late)) \
- VMLINUX_SYMBOL(__end_pci_fixups_suspend_late) = .; \
- } \
- \
- /* Built-in firmware blobs */ \
- .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start_builtin_fw) = .; \
-- *(.builtin_fw) \
-+ KEEP(*(.builtin_fw)) \
- VMLINUX_SYMBOL(__end_builtin_fw) = .; \
- } \
- \
-@@ -410,7 +411,7 @@
- \
- /* Kernel symbol table: strings */ \
- __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
-- KEEP(*(__ksymtab_strings)) \
-+ *(__ksymtab_strings) \
- } \
- \
- /* __*init sections */ \
-@@ -423,14 +424,14 @@
- /* Built-in module parameters. */ \
- __param : AT(ADDR(__param) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___param) = .; \
-- *(__param) \
-+ KEEP(*(__param)) \
- VMLINUX_SYMBOL(__stop___param) = .; \
- } \
- \
- /* Built-in module versions. */ \
- __modver : AT(ADDR(__modver) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___modver) = .; \
-- *(__modver) \
-+ KEEP(*(__modver)) \
- VMLINUX_SYMBOL(__stop___modver) = .; \
- . = ALIGN((align)); \
- VMLINUX_SYMBOL(__end_rodata) = .; \
-@@ -496,7 +497,7 @@
- #define ENTRY_TEXT \
- ALIGN_FUNCTION(); \
- VMLINUX_SYMBOL(__entry_text_start) = .; \
-- *(.entry.text) \
-+ KEEP(*(.entry.text)) \
- VMLINUX_SYMBOL(__entry_text_end) = .;
-
- #if defined(CONFIG_FUNCTION_GRAPH_TRACER) || defined(CONFIG_KASAN)
-@@ -534,7 +535,7 @@
- . = ALIGN(align); \
- __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___ex_table) = .; \
-- *(__ex_table) \
-+ KEEP(*(__ex_table)) \
- VMLINUX_SYMBOL(__stop___ex_table) = .; \
- }
-
-@@ -550,9 +551,9 @@
- #ifdef CONFIG_CONSTRUCTORS
- #define KERNEL_CTORS() . = ALIGN(8); \
- VMLINUX_SYMBOL(__ctors_start) = .; \
-- *(.ctors) \
-+ KEEP(*(.ctors)) \
- *(SORT(.init_array.*)) \
-- *(.init_array) \
-+ KEEP(*(.init_array)) \
- VMLINUX_SYMBOL(__ctors_end) = .;
- #else
- #define KERNEL_CTORS()
-@@ -609,7 +610,7 @@
- #define SBSS(sbss_align) \
- . = ALIGN(sbss_align); \
- .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \
-- *(.sbss) \
-+ *(.sbss .sbss.*) \
- *(.scommon) \
- }
-
-@@ -676,7 +677,7 @@
- . = ALIGN(8); \
- __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__start___bug_table) = .; \
-- *(__bug_table) \
-+ KEEP(*(__bug_table)) \
- VMLINUX_SYMBOL(__stop___bug_table) = .; \
- }
- #else
-@@ -688,7 +689,7 @@
- . = ALIGN(4); \
- .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \
- VMLINUX_SYMBOL(__tracedata_start) = .; \
-- *(.tracedata) \
-+ KEEP(*(.tracedata)) \
- VMLINUX_SYMBOL(__tracedata_end) = .; \
- }
- #else
-@@ -705,7 +706,7 @@
- #define INIT_SETUP(initsetup_align) \
- . = ALIGN(initsetup_align); \
- VMLINUX_SYMBOL(__setup_start) = .; \
-- *(.init.setup) \
-+ KEEP(*(.init.setup)) \
- VMLINUX_SYMBOL(__setup_end) = .;
-
- #define INIT_CALLS_LEVEL(level) \