Enable "make C=1" sparse checking when files get rebuilt. To check
all files, run "make clean" first.
Enable "make C=2" sparse checking of all files without rebuilding them.
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---
Makefile | 14 ++++++++++++++
include/buildrules | 19 +++++++++++++++++++
2 files changed, 33 insertions(+)
diff --git a/Makefile b/Makefile
index f6f91a4d..79779d5e 100644
--- a/Makefile
+++ b/Makefile
@@ -14,6 +14,20 @@ else
Q = @
endif
+CHECK=sparse
+CHECK_OPTS=-Wsparse-all -Wbitwise -Wno-transparent-union -Wno-return-void -Wno-undef \
+ -Wno-non-pointer-null -D__CHECK_ENDIAN__ -D__linux__
+
+ifeq ("$(origin C)", "command line")
+ CHECK_CMD=$(CHECK) $(CHECK_OPTS)
+ CHECKSRC=$(C)
+else
+ CHECK_CMD=@true
+ CHECKSRC=0
+endif
+
+export CHECK_CMD CHECKSRC
+
MAKEOPTS = --no-print-directory Q=$(Q)
TOPDIR = .
diff --git a/include/buildrules b/include/buildrules
index bf187662..6c2b7e18 100644
--- a/include/buildrules
+++ b/include/buildrules
@@ -35,6 +35,21 @@ endif
# Standard targets
#
+ifeq ($(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] $*"
@@ -49,12 +64,16 @@ $(LTLIBRARY) : $(SUBDIRS) $(LTOBJECTS)
%.lo: %.c
@echo " [CC] $@"
$(Q)$(LTCOMPILE) -c $<
+ $(Q)$(CHECK_CMD) $(CFLAGS) $<
else
+
%.o: %.c
@echo " [CC] $@"
$(Q)$(CC) $(CFLAGS) -c $<
+ $(Q)$(CHECK_CMD) $(CFLAGS) $<
endif
+endif
ifdef POTHEAD
%.pot: $(XGETTEXTFILES)
--
2.48.0
