seccomp-bpf-helpers: Fix undefined reference

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")
 import("//build/config/nacl/config.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ skipping 23 matching lines @@
 
 group("sandbox") {
   public_deps = [
     ":sandbox_services",
   ]
 
   if (compile_suid_client || is_nacl_nonsfi) {
     public_deps += [ ":suid_sandbox_client" ]
   }
   if (use_seccomp_bpf || is_nacl_nonsfi) {
-    public_deps += [
-      ":seccomp_bpf",
-      ":seccomp_bpf_helpers",
-    ]
+    public_deps += [ ":seccomp_bpf" ]
   }
 }
 
 source_set("sandbox_linux_test_utils") {
   testonly = true
   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",
@@ skipping 156 matching lines @@
     "bpf_dsl/errorcode.h",
     "bpf_dsl/linux_syscall_ranges.h",
     "bpf_dsl/policy.cc",
     "bpf_dsl/policy.h",
     "bpf_dsl/policy_compiler.cc",
     "bpf_dsl/policy_compiler.h",
     "bpf_dsl/seccomp_macros.h",
     "bpf_dsl/syscall_set.cc",
     "bpf_dsl/syscall_set.h",
     "bpf_dsl/trap_registry.h",
+    "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",
     "seccomp-bpf/die.cc",
     "seccomp-bpf/die.h",
     "seccomp-bpf/sandbox_bpf.cc",
     "seccomp-bpf/sandbox_bpf.h",
     "seccomp-bpf/syscall.cc",
     "seccomp-bpf/syscall.h",
     "seccomp-bpf/trap.cc",
     "seccomp-bpf/trap.h",
   ]
   defines = [ "SANDBOX_IMPLEMENTATION" ]
 
   public_deps = [
     ":sandbox_services_headers",
   ]
   deps = [
     ":sandbox_services",
     "//base",
   ]
 
   if (is_nacl_nonsfi) {
     cflags = [ "-fgnu-inline-asm" ]
     sources -= [
       "bpf_dsl/bpf_dsl_forward.h",
       "bpf_dsl/bpf_dsl_impl.h",
       "bpf_dsl/cons.h",
       "bpf_dsl/errorcode.h",
       "bpf_dsl/linux_syscall_ranges.h",
       "bpf_dsl/seccomp_macros.h",
       "bpf_dsl/trap_registry.h",
-    ]
-  }
-}
-
-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 = [
-    ":sandbox_services",
-    ":seccomp_bpf",
-    "//base",
-  ]
-
-  if (is_nacl_nonsfi) {
-    sources -= [
       "seccomp-bpf-helpers/baseline_policy.cc",
       "seccomp-bpf-helpers/baseline_policy.h",
       "seccomp-bpf-helpers/syscall_sets.cc",
       "seccomp-bpf-helpers/syscall_sets.h",
     ]
     configs += [ ":nacl_nonsfi_warnings" ]
   }
 }
 
 if (is_linux) {
@@ skipping 163 matching lines @@
 
 if (is_android) {
   # TODO(GYP_GONE) Delete this after we've converted everything to GN.
   group("sandbox_linux_unittests_deps") {
     testonly = true
     deps = [
       ":sandbox_linux_unittests",
     ]
   }
 }