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-rw-r--r--tools/testing/selftests/bpf/Makefile13
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 1a3654bcb5dd..79253a376fc8 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -41,6 +41,19 @@ CFLAGS += -g $(OPT_FLAGS) -rdynamic \
LDFLAGS += $(SAN_LDFLAGS)
LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread
+# The following tests perform type punning and they may break strict
+# aliasing rules, which are exploited by both GCC and clang by default
+# while optimizing. This can lead to broken programs.
+progs/bind4_prog.c-CFLAGS := -fno-strict-aliasing
+progs/bind6_prog.c-CFLAGS := -fno-strict-aliasing
+progs/dynptr_fail.c-CFLAGS := -fno-strict-aliasing
+progs/linked_list_fail.c-CFLAGS := -fno-strict-aliasing
+progs/map_kptr_fail.c-CFLAGS := -fno-strict-aliasing
+progs/syscall.c-CFLAGS := -fno-strict-aliasing
+progs/test_pkt_md_access.c-CFLAGS := -fno-strict-aliasing
+progs/test_sk_lookup.c-CFLAGS := -fno-strict-aliasing
+progs/timer_crash.c-CFLAGS := -fno-strict-aliasing
+
ifneq ($(LLVM),)
# Silence some warnings when compiled with clang
CFLAGS += -Wno-unused-command-line-argument