[dpdk-dev] [PATCH 3/4] mk: allow kernel artifacts to be located in output directory

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

From: Scott Branden <scott.branden@broadcom.com>

Allow kernel artifacts to be located in output directory specific
by RTE_KERNELDIR_OUT.  If RTE_KERNELDIR_OUT not specified than
source directory RTE_KERNEL is used.

Signed-off-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 mk/rte.module.mk | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/mk/rte.module.mk b/mk/rte.module.mk
index 1ada528a0..e2e1af716 100644
--- a/mk/rte.module.mk
+++ b/mk/rte.module.mk
@@ -39,6 +39,9 @@ _postinstall: build
 .PHONY: build
 build: _postbuild
 
+# Allow kernel artifacts to be located in a different location that source
+RTE_KERNELDIR_OUT ?= ${RTE_KERNELDIR}
+
 # Link all sources in build directory
 %_link: FORCE
 	$(if $(call compare,$(notdir $*),$*),\
@@ -48,7 +51,7 @@ build: _postbuild
 # build module
 $(MODULE).ko: $(SRCS_LINKS)
 	@if [ ! -f $(notdir Makefile) ]; then ln -nfs $(SRCDIR)/Makefile . ; fi
-	@$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR) \
+	@$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR_OUT) \
 		CC="$(KERNELCC)" CROSS_COMPILE=$(CROSS) V=$(if $V,1,0)
 
 # install module in $(RTE_OUTPUT)/kmod
@@ -59,7 +62,7 @@ $(RTE_OUTPUT)/kmod/$(MODULE).ko: $(MODULE).ko
 
 # install module
 modules_install:
-	@$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR) \
+	@$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR_OUT) \
 		modules_install
 
 .PHONY: clean
@@ -69,7 +72,7 @@ clean: _postclean
 .PHONY: doclean
 doclean:
 	@if [ ! -f $(notdir Makefile) ]; then ln -nfs $(SRCDIR)/Makefile . ; fi
-	$(Q)$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR) clean
+	$(Q)$(MAKE) -C $(RTE_KERNELDIR) M=$(CURDIR) O=$(RTE_KERNELDIR_OUT) clean
 	@$(foreach FILE,$(SRCS-y) $(SRCS-n) $(SRCS-),\
 		if [ -h $(notdir $(FILE)) ]; then rm -f $(notdir $(FILE)) ; fi ;)
 	@if [ -h $(notdir Makefile) ]; then rm -f $(notdir Makefile) ; fi
-- 
2.14.3 (Apple Git-98)