1 # This option enables -fsanitize=hwaddress for stage2 and stage3. 2 # We need to disable random frame tags for bootstrap since the autoconf check 3 # for which direction the stack is growing has UB that a random frame tag 4 # breaks. Running with a random frame tag gives approx. 50% chance of 5 # bootstrap comparison diff in libiberty/alloca.c. 6 7 STAGE2_CFLAGS += -fsanitize=hwaddress --param hwasan-random-frame-tag=0 8 STAGE3_CFLAGS += -fsanitize=hwaddress --param hwasan-random-frame-tag=0 9 POSTSTAGE1_LDFLAGS += -fsanitize=hwaddress -static-libhwasan \ 10 -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ \ 11 -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/hwasan/ \ 12 -B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/hwasan/.libs 13