Merge "Disable unsigned-shift-base by default."

2021-01-15 00:17:36 +00:00 · 2021-01-15 00:17:36 +00:00 · 7604390e4c
parent d041e4babf 462c12dfae
commit 7604390e4c
1 changed files with 10 additions and 0 deletions
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@ -441,3 +441,13 @@ ifneq ($(findstring fsanitize,$(my_cflags)),)
    endif
  endif
 endif
+
+# http://b/177566116, libc++ may crash with this sanitizer.
+# Disable this check unless it has been explicitly specified.
+ifneq ($(findstring fsanitize,$(my_cflags)),)
+  ifneq ($(findstring integer,$(my_cflags)),)
+    ifeq ($(findstring sanitize=unsigned-shift-base,$(my_cflags)),)
+      my_cflags += -fno-sanitize=unsigned-shift-base
+    endif
+  endif
+endif