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@ -1,6 +1,6 @@ |
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From: Felix Fietkau <nbd@openwrt.org>
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From: Felix Fietkau <nbd@openwrt.org>
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use -ffunction-sections, -fdata-sections and --gc-sections
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use -ffunction-sections, -fdata-sections and --gc-sections --sort-section=name
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In combination with kernel symbol export stripping this significantly reduces
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In combination with kernel symbol export stripping this significantly reduces
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the kernel image size. Used on both ARM and MIPS architectures.
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the kernel image size. Used on both ARM and MIPS architectures.
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@ -17,7 +17,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org> |
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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cflags-y += -msoft-float
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cflags-y += -msoft-float
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-LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
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-LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
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+LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections
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+LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections --sort-section=name
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KBUILD_AFLAGS_MODULE += -mlong-calls
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KBUILD_AFLAGS_MODULE += -mlong-calls
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KBUILD_CFLAGS_MODULE += -mlong-calls
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KBUILD_CFLAGS_MODULE += -mlong-calls
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@ -423,7 +423,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org> |
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ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
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ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
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LDFLAGS_vmlinux += --be8
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LDFLAGS_vmlinux += --be8
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endif
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endif
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+LDFLAGS_vmlinux += --gc-sections
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+LDFLAGS_vmlinux += --gc-sections --sort-section=name
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OBJCOPYFLAGS :=-O binary -R .comment -S
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OBJCOPYFLAGS :=-O binary -R .comment -S
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GZFLAGS :=-9
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GZFLAGS :=-9
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