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.c...@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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
