SafeStack: Add SafeStack Linux ToT builder

Bug: 864705
Change-Id: I2b929b8655092520b755693c92ee34990d5e1dec
Reviewed-on: https://chromium-review.googlesource.com/1184152
Commit-Queue: Vlad Tsyrklevich <vtsyrklevich@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590021}

infra/config/global/luci-milo.cfg

@@ -2049,6 +2049,11 @@ consoles {
     category: "CFI|Linux"
     short_name: "ToT"
   }
+  builders {
+    name: "buildbot/chromium.clang/SafeStack Linux ToT"
+    category: "CFI|Linux"
+    short_name: "ss"
+  }
   builders {
     name: "buildbot/chromium.clang/ToTWinCFI"
     name: "buildbucket/luci.chromium.ci/ToTWinCFI"

testing/buildbot/waterfalls.pyl

@@ -701,6 +701,11 @@
           ],
         },
       },
+      'SafeStack Linux ToT': {
+        'test_suites': {
+          'gtest_tests': 'chromium_linux_gtests',
+        },
+      },
       'ToTAndroid': {
         'additional_compile_targets': [
           'all',

tools/mb/mb_config.pyl

@@ -118,6 +118,7 @@
       'CrWinAsanCov': 'asan_clang_edge_fuzzer_static_v8_heap_minimal_symbols_release_tot',
 
       'linux-win_cross-rel': 'clang_tot_win_release_cross',
+      'SafeStack Linux ToT': 'safestack_cfi_tot',
       'ToTAndroid': 'android_clang_tot_release_minimal_symbols',
       'ToTAndroid64': 'android_clang_tot_release_arm64',
       'ToTAndroidASan': 'android_clang_tot_asan',
@@ -1614,6 +1615,10 @@
       'release_bot', 'x86', 'minimal_symbols', 'no_clang', 'use_cxx11',
     ],
 
+    'safestack_cfi_tot': [
+      'safestack', 'cfi', 'cfi_diag', 'clang_tot', 'dcheck_always_on',
+    ],
+
     'tcmalloc_release_bot': [
       'tcmalloc', 'release_bot',
     ],
@@ -1757,6 +1762,10 @@
       'gn_args': 'use_cfi_recover=true',
     },
 
+    'safestack': {
+      'gn_args': 'is_safestack=true',
+    },
+
     'chrome_with_codecs': {
       'mixins': ['ffmpeg_branding_chrome', 'proprietary_codecs'],
     },