SPARSE_FLAGS ?=
SP_EXTRA_FLAGS =
-# For the 'coccicheck' target
+# For the 'coccicheck' target; setting SPATCH_BATCH_SIZE higher will
+# usually result in less CPU usage at the cost of higher peak memory.
+# Setting it to 0 will feed all files in a single spatch invocation.
SPATCH_FLAGS = --all-includes --patch .
+SPATCH_BATCH_SIZE = 1
include config.mak.uname
-include config.mak.autogen
%.cocci.patch: %.cocci $(COCCI_SOURCES)
@echo ' ' SPATCH $<; \
- ret=0; \
- for f in $(COCCI_SOURCES); do \
- $(SPATCH) --sp-file $< $$f $(SPATCH_FLAGS) || \
- { ret=$$?; break; }; \
- done >$@+ 2>$@.log; \
- if test $$ret != 0; \
+ if test $(SPATCH_BATCH_SIZE) = 0; then \
+ limit=; \
+ else \
+ limit='-n $(SPATCH_BATCH_SIZE)'; \
+ fi; \
+ if ! echo $(COCCI_SOURCES) | xargs $$limit \
+ $(SPATCH) --sp-file $< $(SPATCH_FLAGS) \
+ >$@+ 2>$@.log; \
then \
cat $@.log; \
exit 1; \