From 10f1787edf630b8a2c67ca3ca207005dbb7ebd4d Mon Sep 17 00:00:00 2001 From: Stefano Brivio Date: Tue, 15 Mar 2022 18:14:53 +0100 Subject: Makefile: Enable a few hardening flags They don't have a measurable performance impact and make things a bit safer. Signed-off-by: Stefano Brivio --- Makefile | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index a2640ff..de3175d 100644 --- a/Makefile +++ b/Makefile @@ -24,6 +24,7 @@ AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPC64/PPC/') AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPCLE/PPC64LE/') CFLAGS += -Wall -Wextra -pedantic -std=c99 -D_XOPEN_SOURCE=700 -D_GNU_SOURCE +CFLAGS += -D_FORTIFY_SOURCE=2 -O2 -pie -fPIE CFLAGS += -DPAGE_SIZE=$(shell getconf PAGE_SIZE) CFLAGS += -DNETNS_RUN_DIR=\"/run/netns\" CFLAGS += -DPASST_AUDIT_ARCH=AUDIT_ARCH_$(AUDIT_ARCH) @@ -64,6 +65,10 @@ ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0) CFLAGS += -DHAS_GETRANDOM endif +ifeq ($(shell :|$(CC) -fstack-protector-strong -S -xc - >/dev/null 2>&1; echo $$?),0) + CFLAGS += -fstack-protector-strong +endif + prefix ?= /usr/local ifeq ($(TARGET_ARCH),X86_64) @@ -87,7 +92,8 @@ passt: $(filter-out qrap.c,$(wildcard *.c)) \ passt.avx2: CFLAGS += -Ofast -mavx2 -ftree-vectorize -funroll-loops passt.avx2: $(filter-out qrap.c,$(wildcard *.c)) \ $(filter-out qrap.h,$(wildcard *.h)) seccomp.h - $(CC) $(CFLAGS) $(filter-out qrap.c,$(wildcard *.c)) -o passt.avx2 + $(CC) $(filter-out -O2,$(CFLAGS)) $(filter-out qrap.c,$(wildcard *.c)) \ + -o passt.avx2 passt.avx2: passt @@ -227,7 +233,7 @@ clang-tidy: $(wildcard *.c) $(wildcard *.h) -readability-function-cognitive-complexity,\ -altera-struct-pack-align,\ -concurrency-mt-unsafe \ - --warnings-as-errors=* $(wildcard *.c) -- $(CFLAGS) + --warnings-as-errors=* $(wildcard *.c) -- $(filter-out -pie,$(CFLAGS)) ifeq ($(shell $(CC) -v 2>&1 | grep -c "gcc version"),1) TARGET := $(shell ${CC} -v 2>&1 | sed -n 's/Target: \(.*\)/\1/p') -- cgit v1.2.3