Messages in this thread Patch in this message | | | From | Qiang Chen <> | Subject | [PATCH] ARM: decompressor: disable branch profiling | Date | Mon, 12 May 2014 16:42:13 +0800 |
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The early kernel decrompressing code can't call into the kernel in order to profile branches. This patch fixes below link error:
arch/arm/boot/compressed/decompress.o: In function `lzo1x_decompress_safe': undefined reference to `ftrace_likely_update'
Signed-off-by: Qiang Chen <qiang2.chen@sonymobile.com> --- arch/arm/boot/compressed/Makefile | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index 68c9183..384c843 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -120,6 +120,7 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y) ORIG_CFLAGS := $(KBUILD_CFLAGS) KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS)) endif +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING ccflags-y := -fpic -mno-single-pic-base -fno-builtin -I$(obj) asflags-y := -DZIMAGE -- 1.8.2.2
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