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Makefile: Enable a few hardening flags

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They don't have a measurable performance impact and make things a
bit safer.

Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Stefano Brivio 2022-03-15 18:14:53 +01:00
parent 79217b7689
commit 10f1787edf
1 changed files with 8 additions and 2 deletions
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10
Makefile
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@ -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')