msan-builder: suppress pixman false positive

infra/base-images/base-msan-builder/packages/pixman.py

@@ -33,3 +33,10 @@ class Package(package.Package):
       'sed s/support_for_gcc_vector_extensions=yes/'
       'support_for_gcc_vector_extensions=no/ -i %s/configure.ac' %
       source_directory)
+
+  def PreBuild(self, source_directory, env, custom_bin_dir):
+    blacklist_flag = ' -fsanitize-blacklist=' + os.path.join(
+        os.path.dirname(os.path.abspath(__file__)),
+        'pixman_blacklist.txt')
+    env['DEB_CXXFLAGS_APPEND'] += blacklist_flag
+    env['DEB_CFLAGS_APPEND'] += blacklist_flag

infra/base-images/base-msan-builder/packages/pixman_blacklist.txt

@@ -0,0 +1 @@
+src:pixman-sse2.c