-Wno-non-pointer-null -D__CHECK_ENDIAN__ -D__linux__
ifeq ("$(origin C)", "command line")
- ifeq ("$(C)", "1")
- CHECK_CMD=$(CHECK) $(CHECK_OPTS)
- else
- CHECK_CMD=@true
- endif
+ CHECK_CMD=$(CHECK) $(CHECK_OPTS)
+ CHECKSRC=$(C)
+else
+ CHECK_CMD=@true
+ CHECKSRC=0
endif
-export CHECK_CMD
+export CHECK_CMD CHECKSRC
MAKEOPTS = --no-print-directory Q=$(Q)
First you need to install sparse, either from your distribution or from
source as provided at http://www.kernel.org/pub/software/devel/sparse/.
-The xfsprogs Makefile has a convenient shortcut to running sparse, by setting
-the C ("check") variable on the make commandline. To perform these checks on
-files when they get rebuilt, use:
+Then, run make with "make C=1" to run sparse on all the C files that get
+recompiled, or use "make C=2" to run sparse on the files whether they need to
+be recompiled or not. The latter is a fast way to check the whole tree if you
+have already built it.
- make C=1
-
-(Note that xfsprogs does not yet support the kernel convention of checking
-all C files without compilation via "make C=2", so to run sparse on all
-C files, start with a "make clean")
+See the top-level Makefile for a list of which sparse flags are enabled.
If you'd rather run sparse more manually, just set the compiler to cgcc,
which is a wrapper that calls both sparse and gcc using:
# Standard targets
#
+ifeq ($(CHECKSRC),2)
+
+# Check every .c file with sparse CHECK_CMD, do not call compiler
+$(LTCOMMAND) $(LTLIBRARY) : $(SUBDIRS) $(OBJECTS)
+.PHONY: $(LTCOMMAND) $(LTLIBRARY)
+
+%.lo %.o : %.c FORCE
+ @echo " [CHECK] $<"
+ $(Q)$(CHECK_CMD) $(CFLAGS) $<
+
+FORCE:
+
+else
+# Regular build, possibly calling sparse CHECK_CMD as well
+
ifdef LTCOMMAND
$(LTCOMMAND) : $(SUBDIRS) $(OBJECTS) $(LTDEPENDENCIES)
@echo " [LD] $@"
$(Q)$(CHECK_CMD) $(CFLAGS) $<
endif
+endif
ifdef POTHEAD
$(POTHEAD): $(XGETTEXTFILES)