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