[test] Add test isolation and parameters for ubsan

This adds a missing swarming config to the ubsan builders to fix
test isolation.

This also adds ubsan_vptr to the inferred options from build metadata.

For ubsan_vptr builds, the test runner makes sure to set up the
required options.

TBR=ishell@chromium.org

Bug: chromium:726584
Change-Id: I9667ba2b6d9d0f363f7cc94d23308e09da002d99
Reviewed-on: https://chromium-review.googlesource.com/577689Reviewed-by: Igor Sheludko <ishell@chromium.org>
Reviewed-by: Michael Achenbach <machenbach@chromium.org>
Commit-Queue: Michael Achenbach <machenbach@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46866}

BUILD.gn

@@ -813,6 +813,7 @@ action("v8_dump_build_config") {
     "is_gcov_coverage=$is_gcov_coverage",
     "is_msan=$is_msan",
     "is_tsan=$is_tsan",
+    "is_ubsan_vptr=$is_ubsan_vptr",
     "target_cpu=\"$target_cpu\"",
     "v8_current_cpu=\"$v8_current_cpu\"",
     "v8_enable_i18n_support=$v8_enable_i18n_support",

infra/mb/mb_config.pyl

@@ -407,9 +407,9 @@
     'gn_release_x64_tsan_minimal_symbols': [
       'gn', 'release_bot', 'x64', 'tsan', 'minimal_symbols', 'swarming'],
     'gn_release_x64_ubsan_vptr': [
-      'gn', 'release_bot', 'x64', 'ubsan_vptr'],
+      'gn', 'release_bot', 'x64', 'ubsan_vptr', 'swarming'],
     'gn_release_x64_ubsan_vptr_minimal_symbols': [
-      'gn', 'release_bot', 'x64', 'ubsan_vptr', 'minimal_symbols'],
+      'gn', 'release_bot', 'x64', 'ubsan_vptr', 'minimal_symbols', 'swarming'],
     'gn_release_x64_valgrind': [
       'gn', 'release_bot', 'x64', 'swarming', 'valgrind',
       'no_custom_libcxx'],

tools/run-deopt-fuzzer.py

@@ -404,6 +404,7 @@ def Execute(arch, mode, args, options, suites, workspace):
     "predictable": False,
     "byteorder": sys.byteorder,
     "no_harness": False,
+    "ubsan_vptr": False,
   }
   all_tests = []
   num_tests = 0

tools/run-tests.py

@@ -364,8 +364,11 @@ def BuildOptions():
   result.add_option("--random-seed-stress-count", default=1, type="int",
                     dest="random_seed_stress_count",
                     help="Number of runs with different random seeds")
+  result.add_option("--ubsan-vptr",
+                    help="Regard test expectations for UBSanVptr",
+                    default=False, action="store_true")
   result.add_option("--msan",
-                    help="Regard test expectations for MSAN",
+                    help="Regard test expectations for UBSanVptr",
                     default=False, action="store_true")
   return result
 
@@ -423,6 +426,12 @@ def SetupEnvironment(options):
       symbolizer,
     ])
 
+  if options.ubsan_vptr:
+    os.environ['UBSAN_OPTIONS'] = ":".join([
+      'print_stacktrace=1',
+      symbolizer,
+    ])
+
   if options.msan:
     os.environ['MSAN_OPTIONS'] = symbolizer
 
@@ -502,7 +511,8 @@ def ProcessOptions(options):
         ('msan', build_config["is_msan"]),
         ('no_i18n', not build_config["v8_enable_i18n_support"]),
         ('no_snap', not build_config["v8_use_snapshot"]),
-        ('tsan', build_config["is_tsan"])):
+        ('tsan', build_config["is_tsan"]),
+        ('ubsan_vptr', build_config["is_ubsan_vptr"])):
       cmd_line_value = getattr(options, param)
       if cmd_line_value not in [None, True, False] and cmd_line_value != value:
         # TODO(machenbach): This is for string options only. Requires options
@@ -831,7 +841,8 @@ def Execute(arch, mode, args, options, suites):
     "novfp3": options.novfp3,
     "predictable": options.predictable,
     "byteorder": sys.byteorder,
-    "no_harness": options.no_harness
+    "no_harness": options.no_harness,
+    "ubsan_vptr": options.ubsan_vptr,
   }
   all_tests = []
   num_tests = 0