UBSAN cleanup

Makefile

@@ -189,7 +189,7 @@ CC_ubsan = clang
 CXX_ubsan = clang++
 LD_ubsan = clang
 LDXX_ubsan = clang++
-CPPFLAGS_ubsan = -O0 -fsanitize-coverage=edge -fsanitize=undefined,unsigned-integer-overflow -fno-omit-frame-pointer -Wno-unused-command-line-argument -Wvarargs
+CPPFLAGS_ubsan = -O0 -fsanitize-coverage=edge -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument -Wvarargs
 LDFLAGS_ubsan = -fsanitize=undefined,unsigned-integer-overflow
 DEFINES_ubsan = NDEBUG
 

build.yaml

@@ -4090,8 +4090,8 @@ configs:
       TSAN_OPTIONS: suppressions=tools/tsan_suppressions.txt:halt_on_error=1:second_deadlock_stack=1
   ubsan:
     CC: clang
-    CPPFLAGS: -O0 -fsanitize-coverage=edge -fsanitize=undefined,unsigned-integer-overflow
-      -fno-omit-frame-pointer -Wno-unused-command-line-argument -Wvarargs
+    CPPFLAGS: -O0 -fsanitize-coverage=edge -fsanitize=undefined -fno-omit-frame-pointer
+      -Wno-unused-command-line-argument -Wvarargs
     CXX: clang++
     DEFINES: NDEBUG
     LD: clang
@@ -4099,7 +4099,7 @@ configs:
     LDXX: clang++
     compile_the_world: true
     test_environ:
-      UBSAN_OPTIONS: halt_on_error=1:print_stacktrace=1
+      UBSAN_OPTIONS: halt_on_error=1:print_stacktrace=1:suppressions=tools/ubsan_suppressions.txt
 defaults:
   benchmark:
     CPPFLAGS: -Ithird_party/benchmark/include -DHAVE_POSIX_REGEX

tools/run_tests/generated/configs.json

@@ -58,7 +58,7 @@
   {
     "config": "ubsan", 
     "environ": {
-      "UBSAN_OPTIONS": "halt_on_error=1:print_stacktrace=1"
+      "UBSAN_OPTIONS": "halt_on_error=1:print_stacktrace=1:suppressions=tools/ubsan_suppressions.txt"
     }
   }, 
   {

tools/ubsan_suppressions.txt

@@ -0,0 +1,7 @@
+# boringssl stuff
+nonnull-attribute:bn_wexpand
+nonnull-attribute:CBB_add_bytes
+nonnull-attribute:rsa_blinding_get
+nonnull-attribute:ssl_copy_key_material
+alignment:CRYPTO_cbc128_encrypt
+