From 95acc4fe0e31ae91d485635c021d259e06785b5d Mon Sep 17 00:00:00 2001 From: Adrian Schmutzler Date: Fri, 7 Aug 2020 14:29:11 +0200 Subject: kernel: remove support for kernel 4.14 No target uses kernel 4.14 anymore. Signed-off-by: Adrian Schmutzler --- .../linux/generic/hack-4.14/220-gc_sections.patch | 258 --------------------- 1 file changed, 258 deletions(-) delete mode 100644 target/linux/generic/hack-4.14/220-gc_sections.patch (limited to 'target/linux/generic/hack-4.14/220-gc_sections.patch') diff --git a/target/linux/generic/hack-4.14/220-gc_sections.patch b/target/linux/generic/hack-4.14/220-gc_sections.patch deleted file mode 100644 index 6a4475fc6e..0000000000 --- a/target/linux/generic/hack-4.14/220-gc_sections.patch +++ /dev/null @@ -1,258 +0,0 @@ -From e3d8676f5722b7622685581e06e8f53e6138e3ab Mon Sep 17 00:00:00 2001 -From: Felix Fietkau -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 -Signed-off-by: Jonas Gorski -Signed-off-by: Gabor Juhos ---- - 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 -@@ -272,6 +272,11 @@ else - scripts/Kbuild.include: ; - include scripts/Kbuild.include - -+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) -@@ -779,11 +784,6 @@ ifdef CONFIG_DEBUG_SECTION_MISMATCH - KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) - endif - --ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION --KBUILD_CFLAGS += $(call cc-option,-ffunction-sections,) --KBUILD_CFLAGS += $(call cc-option,-fdata-sections,) --endif -- - # arch Makefile may override CC so keep this after arch Makefile is included - NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) - CHECKFLAGS += $(NOSTDINC_FLAGS) ---- a/arch/arm/Kconfig -+++ b/arch/arm/Kconfig -@@ -91,6 +91,7 @@ config ARM - select HAVE_UID16 - select HAVE_VIRT_CPU_ACCOUNTING_GEN - select IRQ_FORCED_THREADING -+ select LD_DEAD_CODE_DATA_ELIMINATION - select MODULES_USE_ELF_REL - select NO_BOOTMEM - select OF_EARLY_FLATTREE if OF ---- a/arch/arm/boot/compressed/Makefile -+++ b/arch/arm/boot/compressed/Makefile -@@ -103,6 +103,7 @@ ifeq ($(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 -@@ -18,7 +18,7 @@ - #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 \ -@@ -29,11 +29,11 @@ - #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 -@@ -106,7 +106,7 @@ SECTIONS - _stext = .; /* Text and read-only data */ - IDMAP_TEXT - __exception_text_start = .; -- *(.exception.text) -+ KEEP(*(.exception.text)) - __exception_text_end = .; - IRQENTRY_TEXT - SOFTIRQENTRY_TEXT -@@ -135,7 +135,7 @@ SECTIONS - __ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET) { - __start___ex_table = .; - #ifdef CONFIG_MMU -- *(__ex_table) -+ KEEP(*(__ex_table)) - #endif - __stop___ex_table = .; - } -@@ -147,12 +147,12 @@ 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 -@@ -172,14 +172,14 @@ 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 = .; -@@ -195,24 +195,24 @@ 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 -@@ -40,6 +40,7 @@ config MIPS - select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) - select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) - select HAVE_CC_STACKPROTECTOR -+ select LD_DEAD_CODE_DATA_ELIMINATION - select HAVE_CONTEXT_TRACKING - select HAVE_COPY_THREAD_TLS - select HAVE_C_RECORDMCOUNT ---- a/arch/mips/kernel/vmlinux.lds.S -+++ b/arch/mips/kernel/vmlinux.lds.S -@@ -72,7 +72,7 @@ SECTIONS - /* Exception table for data bus errors */ - __dbe_table : { - __start___dbe_table = .; -- *(__dbe_table) -+ KEEP(*(__dbe_table)) - __stop___dbe_table = .; - } - -@@ -123,7 +123,7 @@ 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() -@@ -237,7 +237,8 @@ - LIKELY_PROFILE() \ - BRANCH_PROFILE() \ - TRACE_PRINTKS() \ -- TRACEPOINT_STR() -+ TRACEPOINT_STR() \ -+ *(.data.[a-zA-Z_]*) - - /* - * Data section helpers -@@ -497,7 +498,7 @@ - #define ENTRY_TEXT \ - ALIGN_FUNCTION(); \ - VMLINUX_SYMBOL(__entry_text_start) = .; \ -- *(.entry.text) \ -+ KEEP(*(.entry.text)) \ - VMLINUX_SYMBOL(__entry_text_end) = .; - - #define IRQENTRY_TEXT \ -@@ -604,7 +605,7 @@ - . = ALIGN(sbss_align); \ - .sbss : AT(ADDR(.sbss) - LOAD_OFFSET) { \ - *(.dynsbss) \ -- *(.sbss) \ -+ *(.sbss .sbss.*) \ - *(.scommon) \ - } - -- cgit v1.2.3