Add GN build for Linux sandbox.

sandbox/linux/BUILD.gn

Index: sandbox/linux/BUILD.gn
diff --git a/sandbox/linux/BUILD.gn b/sandbox/linux/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..d7efa73f9e5f562c232d6f5a4ccfe4650864c6aa
--- /dev/null
+++ b/sandbox/linux/BUILD.gn
@@ -0,0 +1,313 @@
+# Copyright 2014 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.
+
+import("//build/config/features.gni")
+
+declare_args() {
+  compile_suid_client = is_linux
+
+  compile_credentials = is_linux
+
+  compile_seccomp_bpf_demo =
+    (is_linux && (cpu_arch == "x86" || cpu_arch == "x64"))
+}
+
+# We have two principal targets: sandbox and sandbox_linux_unittests
+# All other targets are listed as dependencies.
+# There is one notable exception: for historical reasons, chrome_sandbox is
+# the setuid sandbox and is its own target.
+
+group("sandbox") {
+  deps = [
+    ":sandbox_services",
+  ]
+
+  if (compile_suid_client) {
+    deps += [ ":suid_sandbox_client" ]
+  }
+  if (use_seccomp_bpf) {
+    deps += [
+      ":seccomp_bpf",
+      ":seccomp_bpf_helpers",
+    ]
+  }
+}
+
+source_set("sandbox_linux_test_utils") {
+  sources = [
+    "tests/sandbox_test_runner.cc",
+    "tests/sandbox_test_runner.h",
+    "tests/sandbox_test_runner_function_pointer.cc",
+    "tests/sandbox_test_runner_function_pointer.h",
+    "tests/test_utils.cc",
+    "tests/test_utils.h",
+    "tests/unit_tests.cc",
+    "tests/unit_tests.h",
+  ]
+
+  deps = [
+    "//testing/gtest",
+  ]
+
+  if (use_seccomp_bpf) {
+    sources += [
+      "seccomp-bpf/bpf_tester_compatibility_delegate.h",
+      "seccomp-bpf/bpf_tests.h",
+      "seccomp-bpf/sandbox_bpf_test_runner.cc",
+      "seccomp-bpf/sandbox_bpf_test_runner.h",
+    ]
+    deps += [
+      ":seccomp_bpf",
+    ]
+  }
+}
+
+# The main sandboxing test target.
+test("sandbox_linux_unittests") {
+  sources = [
+    "tests/main.cc",
+    "tests/unit_tests_unittest.cc",
+    "services/broker_process_unittest.cc",
+    "services/scoped_process_unittest.cc",
+    "services/thread_helpers_unittests.cc",
+    "services/yama_unittests.cc",
+  ]
+
+  deps = [
+    ":sandbox",
+    ":sandbox_linux_test_utils",
+    "//base",
+    "//base/test:test_support",
+    "//testing/gtest",
+  ]
+
+  if (compile_suid_client) {
+    sources += [
+      "suid/client/setuid_sandbox_client_unittest.cc",
+    ]
+  }
+  if (use_seccomp_bpf) {
+    sources += [
+      "seccomp-bpf-helpers/baseline_policy_unittest.cc",
+      "seccomp-bpf/bpf_tests_unittest.cc",
+      "seccomp-bpf/codegen_unittest.cc",
+      "seccomp-bpf/errorcode_unittest.cc",
+      "seccomp-bpf/sandbox_bpf_unittest.cc",
+      "seccomp-bpf/syscall_iterator_unittest.cc",
+      "seccomp-bpf/syscall_unittest.cc",
+    ]
+  }
+  if (compile_credentials) {
+    sources += [
+      "services/credentials_unittest.cc",
+      "services/unix_domain_socket_unittest.cc",
+    ]
+  }
+}
+
+# TODO(GYP) Android version of this test.
+#    {
+#      # This target is the shared library used by Android APK (i.e.
+#      # JNI-friendly) tests.
+#      "target_name": "sandbox_linux_jni_unittests",
+#      "includes": [
+#        "sandbox_linux_test_sources.gypi",
+#      ],
+#      "type": "shared_library",
+#      "conditions": [
+#        [ "OS == "android"", {
+#          "dependencies": [
+#            "../testing/android/native_test.gyp:native_test_native_code",
+#          ],
+#        }],
+#      ],
+#    },
+
+component("seccomp_bpf") {
+  sources = [
+    "seccomp-bpf/basicblock.cc",
+    "seccomp-bpf/basicblock.h",
+    "seccomp-bpf/codegen.cc",
+    "seccomp-bpf/codegen.h",
+    "seccomp-bpf/die.cc",
+    "seccomp-bpf/die.h",
+    "seccomp-bpf/errorcode.cc",
+    "seccomp-bpf/errorcode.h",
+    "seccomp-bpf/instruction.h",
+    "seccomp-bpf/linux_seccomp.h",
+    "seccomp-bpf/sandbox_bpf.cc",
+    "seccomp-bpf/sandbox_bpf.h",
+    "seccomp-bpf/sandbox_bpf_compatibility_policy.h",
+    "seccomp-bpf/sandbox_bpf_policy.cc",
+    "seccomp-bpf/sandbox_bpf_policy.h",
+    "seccomp-bpf/syscall.cc",
+    "seccomp-bpf/syscall.h",
+    "seccomp-bpf/syscall_iterator.cc",
+    "seccomp-bpf/syscall_iterator.h",
+    "seccomp-bpf/trap.cc",
+    "seccomp-bpf/trap.h",
+    "seccomp-bpf/verifier.cc",
+    "seccomp-bpf/verifier.h",
+  ]
+  defines = [ "SANDBOX_IMPLEMENTATION" ]
+
+  deps = [
+    ":sandbox_services_headers",
+    "//base",
+  ]
+}
+
+component("seccomp_bpf_helpers") {
+  sources = [
+    "seccomp-bpf-helpers/baseline_policy.cc",
+    "seccomp-bpf-helpers/baseline_policy.h",
+    "seccomp-bpf-helpers/sigsys_handlers.cc",
+    "seccomp-bpf-helpers/sigsys_handlers.h",
+    "seccomp-bpf-helpers/syscall_parameters_restrictions.cc",
+    "seccomp-bpf-helpers/syscall_parameters_restrictions.h",
+    "seccomp-bpf-helpers/syscall_sets.cc",
+    "seccomp-bpf-helpers/syscall_sets.h",
+  ]
+  defines = [ "SANDBOX_IMPLEMENTATION" ]
+
+  deps = [
+    "//base",
+    ":seccomp_bpf",
+  ]
+}
+
+if (compile_seccomp_bpf_demo) {
+  # A demonstration program for the seccomp-bpf sandbox.
+  executable("seccomp_bpf_demo") {
+    sources = [
+      "seccomp-bpf/demo.cc",
+    ]
+    deps = [
+      ":seccomp_bpf",
+    ]
+  }
+}
+
+# The setuid sandbox for Linux.
+executable("chrome_sandbox") {
+  sources = [
+    "suid/common/sandbox.h",
+    "suid/common/suid_unsafe_environment_variables.h",
+    "suid/linux_util.c",
+    "suid/linux_util.h",
+    "suid/process_util.h",
+    "suid/process_util_linux.c",
+    "suid/sandbox.c",
+  ]
+
+  cflags = [
+    # For ULLONG_MAX
+    "-std=gnu99",
+    # These files have a suspicious comparison.
+    # TODO fix this and re-enable this warning.
+    "-Wno-sign-compare",
+  ]
+}
+
+component("sandbox_services") {
+  sources = [
+    "services/broker_process.cc",
+    "services/broker_process.h",
+    "services/init_process_reaper.cc",
+    "services/init_process_reaper.h",
+    "services/scoped_process.cc",
+    "services/scoped_process.h",
+    "services/thread_helpers.cc",
+    "services/thread_helpers.h",
+    "services/yama.h",
+    "services/yama.cc",
+  ]
+
+  defines = [ "SANDBOX_IMPLEMENTATION" ]
+
+  if (compile_credentials) {
+    sources += [
+      "services/credentials.cc",
+      "services/credentials.h",
+    ]
+    # For capabilities.cc.
+    configs += [ "//build/config/linux:libcap" ]
+  }
+
+  deps = [
+    "//base",
+  ]
+}
+
+source_set("sandbox_services_headers") {
+  sources = [
+    "services/android_arm_ucontext.h",
+    "services/android_ucontext.h",
+    "services/android_i386_ucontext.h",
+    "services/arm_linux_syscalls.h",
+    "services/linux_syscalls.h",
+    "services/x86_32_linux_syscalls.h",
+    "services/x86_64_linux_syscalls.h",
+  ]
+}
+
+# We make this its own target so that it does not interfere with our tests.
+source_set("libc_urandom_override") {
+  sources = [
+    "services/libc_urandom_override.cc",
+    "services/libc_urandom_override.h",
+  ]
+  deps = [
+    "//base",
+  ]
+}
+
+component("suid_sandbox_client") {
+  sources = [
+    "suid/common/sandbox.h",
+    "suid/common/suid_unsafe_environment_variables.h",
+    "suid/client/setuid_sandbox_client.cc",
+    "suid/client/setuid_sandbox_client.h",
+  ]
+  defines = [ "SANDBOX_IMPLEMENTATION" ]
+
+  deps = [
+    ":sandbox_services",
+    "//base",
+  ]
+}
+
+if (is_android) {
+  # TODO(GYP) enable this. Needs an android_strip wrapper python script.
+  #action("sandbox_linux_unittests_stripped") {
+  #  script = "android_stip.py"
+  #
+  #  in_file = "$root_out_dir/sandbox_linux_unittests"
+  #
+  #  out_file = "$root_out_dir/sandbox_linux_unittests_stripped"
+  #  outputs = [ out_file ]
+  #
+  #  args = [
+  #    rebase_path(in_file, root_build_dir),
+  #    "-o", rebase_path(out_file, root_build_dir),
+  #  ]
+  #
+  #  deps = [
+  #    ":sandbox_linux_unittests",
+  #  ]
+  #}
+
+  # TODO(GYP) convert this.
+  #      {
+  #      'target_name': 'sandbox_linux_jni_unittests_apk',
+  #      'type': 'none',
+  #      'variables': {
+  #        'test_suite_name': 'sandbox_linux_jni_unittests',
+  #      },
+  #      'dependencies': [
+  #        'sandbox_linux_jni_unittests',
+  #      ],
+  #      'includes': [ '../../build/apk_test.gypi' ],
+  #      }
+}