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kernel: when using --gc-sections, add --sort-section=name to get a more stable sorting order 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Backport of r41951

git-svn-id: svn://svn.openwrt.org/openwrt/branches/barrier_breaker@42009 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2014-08-06 10:30:17 +00:00
parent ca6cac962a
commit 6781ca8d62
3 changed files with 5 additions and 5 deletions
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6
target/linux/generic/patches-3.10/220-gc_sections.patch
View File

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

2
target/linux/generic/patches-3.10/302-mips_no_branch_likely.patch
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@ -7,5 +7,5 @@
-cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
+cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely +cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
cflags-y += -msoft-float cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections --sort-section=name
KBUILD_AFLAGS_MODULE += -mlong-calls KBUILD_AFLAGS_MODULE += -mlong-calls

2
target/linux/generic/patches-3.10/305-mips_module_reloc.patch
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@ -3,7 +3,7 @@
@@ -90,8 +90,13 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin @@ -90,8 +90,13 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
cflags-y += -msoft-float cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections --sort-section=name
+ifdef CONFIG_64BIT +ifdef CONFIG_64BIT
KBUILD_AFLAGS_MODULE += -mlong-calls KBUILD_AFLAGS_MODULE += -mlong-calls
KBUILD_CFLAGS_MODULE += -mlong-calls KBUILD_CFLAGS_MODULE += -mlong-calls