diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 41 |
1 files changed, 29 insertions, 12 deletions
@@ -30,7 +30,7 @@ # define "CXFLAGS" to give extra flags to CC. # e.g. make CXFLAGS=-O to optimise -CXFLAGS ?=-O2 +CXFLAGS ?=-O2 -D_FORTIFY_SOURCE=2 TCC = tcc UCLIBC_GCC = $(shell for nm in i386-uclibc-linux-gcc i386-uclibc-gcc; do which $$nm > /dev/null && { echo $$nm ; exit; } ; done; echo false No uclibc found ) #DIET_GCC = diet gcc @@ -50,14 +50,30 @@ ifeq ($(origin CC),default) CC := $(CROSS_COMPILE)gcc endif CXFLAGS ?= -ggdb -CWFLAGS = -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter +CWFLAGS ?= -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter -Wformat -Wformat-security -Werror=format-security -fstack-protector-strong -fPIE -Warray-bounds ifdef WARN_UNUSED -CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3 +CWFLAGS += -Wp -O3 endif -FALLTHROUGH := $(shell gcc -v --help 2>&1 | grep "implicit-fallthrough" | wc -l) -ifneq "$(FALLTHROUGH)" "0" -CWFLAGS += -Wimplicit-fallthrough=0 +ifeq ($(origin FALLTHROUGH), undefined) + FALLTHROUGH := $(shell gcc -Q --help=warnings 2>&1 | grep "implicit-fallthrough" | wc -l) + ifneq "$(FALLTHROUGH)" "0" + CWFLAGS += -Wimplicit-fallthrough=0 + endif +endif + +ifeq ($(origin FORMATOVERFLOW), undefined) + FORMATOVERFLOW := $(shell gcc -Q --help=warnings 2>&1 | grep "format-overflow" | wc -l) + ifneq "$(FORMATOVERFLOW)" "0" + CWFLAGS += -Wformat-overflow + endif +endif + +ifeq ($(origin STRINGOPOVERFLOW), undefined) + STRINGOPOVERFLOW := $(shell gcc -Q --help=warnings 2>&1 | grep "stringop-overflow" | wc -l) + ifneq "$(STRINGOPOVERFLOW)" "0" + CWFLAGS += -Wstringop-overflow + endif endif ifdef DEBIAN @@ -116,10 +132,12 @@ CFLAGS += -DUSE_PTHREADS MON_LDFLAGS += -pthread endif +LDFLAGS = -Wl,-z,now,-z,noexecstack + # If you want a static binary, you might uncomment these -# LDFLAGS = -static +# LDFLAGS += -static # STRIP = -s -LDLIBS = -ldl +LDLIBS = -ldl -pie # To explicitly disable libudev, set -DNO_LIBUDEV in CXFLAGS ifeq (, $(findstring -DNO_LIBUDEV, $(CXFLAGS))) @@ -209,14 +227,13 @@ mdadm.Os : $(SRCS) $(INCL) $(CC) -o mdadm.Os $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -Os $(SRCS) $(LDLIBS) mdadm.O2 : $(SRCS) $(INCL) mdmon.O2 - $(CC) -o mdadm.O2 $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -O2 -D_FORTIFY_SOURCE=2 $(SRCS) $(LDLIBS) + $(CC) -o mdadm.O2 $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) -DHAVE_STDINT_H -O2 $(SRCS) $(LDLIBS) mdmon.O2 : $(MON_SRCS) $(INCL) mdmon.h - $(CC) -o mdmon.O2 $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -DHAVE_STDINT_H -O2 -D_FORTIFY_SOURCE=2 $(MON_SRCS) $(LDLIBS) + $(CC) -o mdmon.O2 $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -DHAVE_STDINT_H -O2 $(MON_SRCS) $(LDLIBS) -# use '-z now' to guarantee no dynamic linker interactions with the monitor thread mdmon : $(MON_OBJS) | check_rundir - $(CC) $(CFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -Wl,-z,now -o mdmon $(MON_OBJS) $(LDLIBS) + $(CC) $(CFLAGS) $(LDFLAGS) $(MON_LDFLAGS) -o mdmon $(MON_OBJS) $(LDLIBS) msg.o: msg.c msg.h test_stripe : restripe.c xmalloc.o mdadm.h |