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ccache: expose control interface via 'make ccache-options' 

usage:
	# set cache limit size
	make CCACHE_OPTIONS="--max-size=5G" ccache-options

	# zero statistics counters
	make CCACHE_OPTIONS="--zero-stats" ccache-options

[Peter: drop the redundant ifeq]
Signed-off-by: Tzu-Jung Lee <tjlee@ambarella.com>
Acked-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Tzu-Jung Lee 2013-10-10 10:50:57 -07:00 committed by Peter Korsgaard
parent 96f702993c
commit d1bca7c49c
2 changed files with 20 additions and 0 deletions
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11
docs/manual/ccache-support.txt
View File

@ -23,3 +23,14 @@ remove this directory.
You can get statistics on the cache (its size, number of hits,
misses, etc.) by running +make ccache-stats+.
The make target +ccache-options+ and the +CCACHE_OPTIONS+ variable
provide more generic access to the ccache. For example
-----------------
# set cache limit size
make CCACHE_OPTIONS="--max-size=5G" ccache-options
# zero statistics counters
make CCACHE_OPTIONS="--zero-stats" ccache-options
-----------------

9
package/ccache/ccache.mk
View File

@ -44,4 +44,13 @@ $(eval $(host-autotools-package))
ifeq ($(BR2_CCACHE),y)
ccache-stats: host-ccache
$(Q)$(CCACHE) -s
ccache-options: host-ccache
ifeq ($(CCACHE_OPTIONS),)
$(Q)echo "Usage: make ccache-options CCACHE_OPTIONS=\"opts\""
$(Q)echo "where 'opts' corresponds to one or more valid ccache options" \
"(see ccache help text below)"
$(Q)echo
endif
$(Q)$(CCACHE) $(CCACHE_OPTIONS)
endif