Hi.
I've been running periodically UBSAN bootstrap and as the runtime errors are
not causing failure of compiler I haven't noticed the errors.
Thus I would like to disable UBSAN recovery. Apart from that I'm handling
issue in md5.c where in UBSAN bootstrap we want to do proper pointer alignment.
Doing that 2 will be remaining issues that will block the bootstrap:
PR84634 and PR84635
May I then install the patch? Jakub what do you think about it?
Thanks,
Martin
config/ChangeLog:
2018-03-01 Martin Liska <mli...@suse.cz>
PR bootstrap/64914
* bootstrap-ubsan.mk: Define UBSAN_BOOTSTRAP macro and disable
recovery mode.
libiberty/ChangeLog:
2018-03-01 Martin Liska <mli...@suse.cz>
PR bootstrap/64914
* md5.c: Use strict alignment with UBSAN_BOOTSTRAP.
---
config/bootstrap-ubsan.mk | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/config/bootstrap-ubsan.mk b/config/bootstrap-ubsan.mk
index d2615e8f807..13bb2000bd5 100644
--- a/config/bootstrap-ubsan.mk
+++ b/config/bootstrap-ubsan.mk
@@ -1,8 +1,8 @@
# This option enables -fsanitize=undefined for stage2 and stage3.
-STAGE2_CFLAGS += -fsanitize=undefined
-STAGE3_CFLAGS += -fsanitize=undefined
-POSTSTAGE1_LDFLAGS += -fsanitize=undefined -static-libubsan \
+STAGE2_CFLAGS += -fsanitize=undefined -fno-sanitize-recover=undefined -DUBSAN_BOOTSTRAP
+STAGE3_CFLAGS += -fsanitize=undefined -fno-sanitize-recover=undefined -DUBSAN_BOOTSTRAP
+POSTSTAGE1_LDFLAGS += -fsanitize=undefined -fno-sanitize-recover=undefined -static-libubsan -DUBSAN_BOOTSTRAP \
-B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ \
-B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ubsan/ \
-B$$r/prev-$(TARGET_SUBDIR)/libsanitizer/ubsan/.libs
