Seccomp BPF: initial structure for unittests

- On Linux, support a new sandbox_linux_unittests target
- Add a new seccomp_bpf_unittests target as a dependency of the global
  sandbox_linux_unittests target.
- Integrate globally as a chromium_builder_tests dependency


BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10635006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@143549 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 62 insertions, 11 deletions

diff --git a/sandbox/linux/seccomp-bpf/sandbox_bpf_unittest.cc b/sandbox/linux/seccomp-bpf/sandbox_bpf_unittest.cc
new file mode 100644
index 0000000..ead6c4e
--- /dev/null
+++ b/sandbox/linux/seccomp-bpf/sandbox_bpf_unittest.cc
@@ -0,0 +1,11 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "sandbox/linux/seccomp-bpf/sandbox_bpf.h"
+#include "sandbox/linux/seccomp-bpf/verifier.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(SandboxBpf, CallSupports) {
+  playground2::Sandbox::supportsSeccompSandbox(-1);
+}
diff --git a/sandbox/linux/tests/unit_tests.cc b/sandbox/linux/tests/unit_tests.cc
new file mode 100644
index 0000000..999d4a6
--- /dev/null
+++ b/sandbox/linux/tests/unit_tests.cc
@@ -0,0 +1,9 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "testing/gtest/include/gtest/gtest.h"
+int main(int argc, char *argv[]) {
+  testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}
diff --git a/sandbox/sandbox_linux.gypi b/sandbox/sandbox_linux.gypi
index e03c5b5..fb313a6 100644
--- a/sandbox/sandbox_linux.gypi
+++ b/sandbox/sandbox_linux.gypi
@@ -4,6 +4,10 @@
 
 {
   'targets': [
+    # We have two principal targets: sandbox and sandbox_linux_unittests
+    # All other targets are listed as dependencies.
+    # FIXME(jln): for historial reasons, sandbox_linux is the setuid sandbox
+    # and is its own target.
     {
       'target_name': 'sandbox',
       'type': 'none',
@@ -16,26 +20,53 @@
             '../seccompsandbox/seccomp.gyp:seccomp_sandbox',
           ],
         }],
-        # This does not include Android.
+        # Similarly, compile seccomp BPF when we support it
         [ 'OS=="linux" and (target_arch=="ia32" or target_arch=="x64")', {
           'type': 'static_library',
-          # Compile seccomp mode 2 code on Linux
-          'sources': [
-            'linux/seccomp-bpf/sandbox_bpf.cc',
-            'linux/seccomp-bpf/sandbox_bpf.h',
-            'linux/seccomp-bpf/verifier.cc',
-            'linux/seccomp-bpf/verifier.h',
-          ],
           'dependencies': [
-            '../base/base.gyp:base',
+            'seccomp_bpf',
           ],
-          'include_dirs': [
-            '..',
+        }],
+      ],
+    },
+    {
+      'target_name': 'sandbox_linux_unittests',
+      'type': 'executable',
+      'dependencies': [
+        'sandbox',
+        '../testing/gtest.gyp:gtest',
+      ],
+      'sources': [
+        'linux/tests/unit_tests.cc',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'conditions': [
+        [ 'OS=="linux" and (target_arch=="ia32" or target_arch=="x64")', {
+          'sources': [
+            'linux/seccomp-bpf/sandbox_bpf_unittest.cc'
           ],
         }],
       ],
     },
     {
+      'target_name': 'seccomp_bpf',
+      'type': 'static_library',
+      'sources': [
+        'linux/seccomp-bpf/sandbox_bpf.cc',
+        'linux/seccomp-bpf/sandbox_bpf.h',
+        'linux/seccomp-bpf/verifier.cc',
+        'linux/seccomp-bpf/verifier.h',
+      ],
+      'dependencies': [
+        '../base/base.gyp:base',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+    },
+    {
       # The setuid sandbox, for Linux
       'target_name': 'chrome_sandbox',
       'type': 'executable',