busybox.inc: improve reproducibility

For reproducible builds do not generate build timestamp as part of
the version string.

Remove host tools references from .config file.
With this patch all eight busybox packages are built as
binary reproducible.

(From OE-Core rev: fad94cdb02be86b463e691ca2598b393e7875919)

Signed-off-by: Juro Bystricky <juro.bystricky@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/meta/recipes-core/busybox/busybox.inc b/meta/recipes-core/busybox/busybox.inc
index b8edd3942c..735b1f6881 100644
--- a/meta/recipes-core/busybox/busybox.inc
+++ b/meta/recipes-core/busybox/busybox.inc
@@ -102,6 +102,9 @@ python () {
 }
 
 do_prepare_config () {
+        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+                export KCONFIG_NOTIMESTAMP=1
+        fi
         sed -e '/CONFIG_STATIC/d' \
                 < ${WORKDIR}/defconfig > ${S}/.config
         echo "# CONFIG_STATIC is not set" >> .config
@@ -118,6 +121,7 @@ do_prepare_config () {
                   ${S}/.config.oe-tmp > ${S}/.config
         fi
         sed -i 's/CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -n"/CONFIG_IFUPDOWN_UDHCPC_CMD_OPTIONS="-R -b"/' ${S}/.config
+        sed -i 's|${DEBUG_PREFIX_MAP}||g' ${S}/.config
 }
 
 # returns all the elements from the src uri that are .cfg files
@@ -138,6 +142,9 @@ do_configure () {
 
 do_compile() {
         unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
+        if [ "$BUILD_REPRODUCIBLE_BINARIES" = "1" ]; then
+                export KCONFIG_NOTIMESTAMP=1
+        fi
         if [ "${BUSYBOX_SPLIT_SUID}" = "1" -a x`grep "CONFIG_FEATURE_INDIVIDUAL=y" .config` = x ]; then
         # split the .config into two parts, and make two busybox binaries
                 if [ -e .config.orig ]; then