[PATCH] ARM: decompressor: disable branch profiling
From: Qiang Chen <hidden>
Date: 2014-05-12 08:42:44
Also in:
lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
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 <redacted> --- 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