Add domain-specific language for BPF policies

sandbox/linux/BUILD.gn

 # 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
@@ skipping 72 matching lines @@
   ]
 
   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-helpers/bpf_dsl_unittest.cc",
+      "seccomp-bpf-helpers/cons_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 += [
@@ skipping 52 matching lines @@
   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/bpf_dsl.cc",
+    "seccomp-bpf-helpers/bpf_dsl.h",
+    "seccomp-bpf-helpers/cons.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 = [
@@ skipping 130 matching lines @@
   #      'type': 'none',
   #      'variables': {
   #        'test_suite_name': 'sandbox_linux_jni_unittests',
   #      },
   #      'dependencies': [
   #        'sandbox_linux_jni_unittests',
   #      ],
   #      'includes': [ '../../build/apk_test.gypi' ],
   #      }
 }