mk: add rule to list configs

Allow to list configs in config/ directory with a simple make rule.

The rule showconfigs is reused in config error.
In the same time, "echo -n" is replaced by the more portable "printf".

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Reviewed-by: Olivier Matz <olivier.matz@6wind.com>

diff --git a/mk/rte.sdkconfig.mk b/mk/rte.sdkconfig.mk
index 68bf547..3d05ba5 100644 (file)
--- a/mk/rte.sdkconfig.mk
+++ b/mk/rte.sdkconfig.mk
@@ -40,14 +40,16 @@ INSTALL_CONFIGS := $(filter-out %~,\
        $(wildcard $(RTE_SRCDIR)/config/defconfig_*)))
 INSTALL_TARGETS := $(addsuffix _install,$(INSTALL_CONFIGS))
 
+.PHONY: showconfigs
+showconfigs:
+       @$(foreach CONFIG, $(INSTALL_CONFIGS), echo $(CONFIG);)
+
 .PHONY: config
 ifeq ($(RTE_CONFIG_TEMPLATE),)
 config:
-       @echo -n "No template specified. Use T=template " ; \
-       echo "among the following list:" ; \
-       for t in $(INSTALL_CONFIGS); do \
-               echo "  $$t" ; \
-       done
+       @printf "No template specified. "
+       @echo "Use T=template among the following list:"
+       @$(MAKE) -rR showconfigs | sed 's,^,  ,'
 else
 config: $(RTE_OUTPUT)/include/rte_config.h $(RTE_OUTPUT)/Makefile
        $(Q)$(MAKE) depdirs

diff --git a/mk/rte.sdkroot.mk b/mk/rte.sdkroot.mk
index e2fb91f..fa09496 100644 (file)
--- a/mk/rte.sdkroot.mk
+++ b/mk/rte.sdkroot.mk
@@ -85,8 +85,8 @@ export ROOTDIRS-y ROOTDIRS- ROOTDIRS-n
 .PHONY: default
 default: all
 
-.PHONY: config showversion
-config showversion:
+.PHONY: config showconfigs showversion
+config showconfigs showversion:
        $(Q)$(MAKE) -f $(RTE_SDK)/mk/rte.sdkconfig.mk $@
 
 .PHONY: test fast_test ring_test mempool_test perf_test coverage