From: He Zhe <zhe...@windriver.com>

CFLAGS is unset during kernel_do_compile and thus the default build
path substitutions in DEBUG_PREFIX_MAP are missing.

To enhance reproducible build for kernel modules, such as lttng-modules
and cryptodev-module, this patch appends them, plus substitution of
STAGING_KERNEL_DIR, to KERNEL_CC.

Signed-off-by: He Zhe <zhe...@windriver.com>
---
 meta/classes/kernel-arch.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/classes/kernel-arch.bbclass b/meta/classes/kernel-arch.bbclass
index cf0edb6..e0fe22b 100644
--- a/meta/classes/kernel-arch.bbclass
+++ b/meta/classes/kernel-arch.bbclass
@@ -57,7 +57,7 @@ HOST_LD_KERNEL_ARCH ?= "${TARGET_LD_KERNEL_ARCH}"
 TARGET_AR_KERNEL_ARCH ?= ""
 HOST_AR_KERNEL_ARCH ?= "${TARGET_AR_KERNEL_ARCH}"
 
-KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} -fuse-ld=bfd"
+KERNEL_CC = "${CCACHE}${HOST_PREFIX}gcc ${HOST_CC_KERNEL_ARCH} -fuse-ld=bfd 
${DEBUG_PREFIX_MAP} -fdebug-prefix-map=${STAGING_KERNEL_DIR}=${KERNEL_SRC_PATH}"
 KERNEL_LD = "${CCACHE}${HOST_PREFIX}ld.bfd ${HOST_LD_KERNEL_ARCH}"
 KERNEL_AR = "${CCACHE}${HOST_PREFIX}ar ${HOST_AR_KERNEL_ARCH}"
 TOOLCHAIN = "gcc"
-- 
2.8.1

-- 
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