[PATCH v2 1/7] u-boot: inject debian multi-arch config

[Felix Moessbauer <felix.moessbauer@siemens.com>]

For more complex u-boot configurations, correct debian multi-arch header
paths have to be set for both the host (~ISAR target) as well as the build
architecture (~ISAR host). In addition, the bits per long have to be set for
userspace ABI. For debian, this always corresponds to the
DEB_HOST_ARCH_BITS.

Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
---
 meta/recipes-bsp/u-boot/files/debian/rules.tmpl | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/meta/recipes-bsp/u-boot/files/debian/rules.tmpl b/meta/recipes-bsp/u-boot/files/debian/rules.tmpl
index 806b01fe..be5b9877 100755
--- a/meta/recipes-bsp/u-boot/files/debian/rules.tmpl
+++ b/meta/recipes-bsp/u-boot/files/debian/rules.tmpl
@@ -12,6 +12,15 @@ export CROSS_COMPILE=$(DEB_HOST_GNU_TYPE)-
 SET_CROSS_BUILD_TOOLS=CROSS_BUILD_TOOLS=y
 endif
 
+# inject debian multi-arch include path
+KCFLAGS += -I/usr/include/$(DEB_HOST_MULTIARCH) -I/usr/$(DEB_HOST_MULTIARCH)/include
+HOSTCFLAGS += -I/usr/include/$(DEB_BUILD_MULTIARCH) -I/usr/$(DEB_BUILD_MULTIARCH)/include
+# define host architecture bitwidth
+KCFLAGS += -DBITS_PER_LONG=$(DEB_HOST_ARCH_BITS)
+
+export KCFLAGS
+export HOSTCFLAGS
+
 override_dh_auto_build:
 	$(MAKE) $(PARALLEL_MAKE) ${U_BOOT_CONFIG}
 	$(MAKE) $(PARALLEL_MAKE) ${U_BOOT_BIN}
-- 
2.34.1