Makefile: add style build rule

diff --git a/Makefile b/Makefile
index b1ff6fad198f6f778f1e07c58558c30bf5b45003..8e5b2df999b08420c038c05cdc7feb88530a0ab3 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1022,10 +1022,15 @@ ifdef DEVELOPER
 CFLAGS += $(DEVELOPER_CFLAGS)
 endif
 
+comma := ,
+empty :=
+space := $(empty) $(empty)
+
 ifdef SANITIZE
+SANITIZERS := $(foreach flag,$(subst $(comma),$(space),$(SANITIZE)),$(flag))
 BASIC_CFLAGS += -fsanitize=$(SANITIZE) -fno-sanitize-recover=$(SANITIZE)
 BASIC_CFLAGS += -fno-omit-frame-pointer
-ifeq ($(SANITIZE),undefined)
+ifneq ($(filter undefined,$(SANITIZERS)),)
 BASIC_CFLAGS += -DNO_UNALIGNED_LOADS
 endif
 endif
@@ -2435,6 +2440,10 @@ $(SP_OBJ): %.sp: %.c GIT-CFLAGS FORCE
 .PHONY: sparse $(SP_OBJ)
 sparse: $(SP_OBJ)
 
+.PHONY: style
+style:
+       git clang-format --style file --diff --extensions c,h
+
 check: common-cmds.h
        @if sparse; \
        then \