Small refactor around futex.h.

This is the preparation of seccomp-bpf implementation
for nacl_helper_nonsfi.
PNaCl toolchain does not provides linux/futex.h.
This CL is the preparation to reuse android_futex.h
for PNaCl toolchain, too.

TEST=Ran bots.
BUG=358465

Review URL: https://codereview.chromium.org/1076213002

Cr-Commit-Position: refs/heads/master@{#324996}

5 files changed, 9 insertions, 10 deletions

diff --git a/sandbox/linux/BUILD.gn b/sandbox/linux/BUILD.gn
index 1794199..21f856b 100644
--- a/sandbox/linux/BUILD.gn
+++ b/sandbox/linux/BUILD.gn
@@ -290,11 +290,11 @@ source_set("sandbox_services_headers") {
   sources = [
     "system_headers/android_arm64_ucontext.h",
     "system_headers/android_arm_ucontext.h",
-    "system_headers/android_futex.h",
     "system_headers/android_i386_ucontext.h",
     "system_headers/android_ucontext.h",
     "system_headers/arm64_linux_syscalls.h",
     "system_headers/arm_linux_syscalls.h",
+    "system_headers/linux_futex.h",
     "system_headers/linux_seccomp.h",
     "system_headers/linux_syscalls.h",
     "system_headers/x86_32_linux_syscalls.h",
diff --git a/sandbox/linux/sandbox_linux.gypi b/sandbox/linux/sandbox_linux.gypi
index 4305b41..1cf3b2d 100644
--- a/sandbox/linux/sandbox_linux.gypi
+++ b/sandbox/linux/sandbox_linux.gypi
@@ -280,13 +280,13 @@
       'sources': [
         'system_headers/android_arm64_ucontext.h',
         'system_headers/android_arm_ucontext.h',
-        'system_headers/android_futex.h',
         'system_headers/android_i386_ucontext.h',
         'system_headers/android_mips_ucontext.h',
         'system_headers/android_ucontext.h',
         'system_headers/arm64_linux_syscalls.h',
         'system_headers/arm_linux_syscalls.h',
         'system_headers/capability.h',
+        'system_headers/linux_futex.h',
         'system_headers/linux_seccomp.h',
         'system_headers/linux_syscalls.h',
         'system_headers/mips_linux_syscalls.h',
diff --git a/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc b/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc
index e6e8934..614849f 100644
--- a/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc
+++ b/sandbox/linux/seccomp-bpf-helpers/baseline_policy_unittest.cc
@@ -6,7 +6,6 @@
 
 #include <errno.h>
 #include <fcntl.h>
-#include <linux/futex.h>
 #include <sched.h>
 #include <signal.h>
 #include <string.h>
@@ -32,7 +31,7 @@
 #include "sandbox/linux/seccomp-bpf/syscall.h"
 #include "sandbox/linux/services/syscall_wrappers.h"
 #include "sandbox/linux/services/thread_helpers.h"
-#include "sandbox/linux/system_headers/android_futex.h"
+#include "sandbox/linux/system_headers/linux_futex.h"
 #include "sandbox/linux/system_headers/linux_syscalls.h"
 #include "sandbox/linux/tests/test_utils.h"
 #include "sandbox/linux/tests/unit_tests.h"
diff --git a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
index b315f12a..282e727 100644
--- a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
+++ b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
@@ -7,7 +7,6 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <fcntl.h>
-#include <linux/futex.h>
 #include <linux/net.h>
 #include <sched.h>
 #include <signal.h>
@@ -30,12 +29,11 @@
 #include "sandbox/linux/bpf_dsl/seccomp_macros.h"
 #include "sandbox/linux/seccomp-bpf-helpers/sigsys_handlers.h"
 #include "sandbox/linux/seccomp-bpf/sandbox_bpf.h"
+#include "sandbox/linux/system_headers/linux_futex.h"
 #include "sandbox/linux/system_headers/linux_syscalls.h"
 
 #if defined(OS_ANDROID)
 
-#include "sandbox/linux/system_headers/android_futex.h"
-
 #if !defined(F_DUPFD_CLOEXEC)
 #define F_DUPFD_CLOEXEC (F_LINUX_SPECIFIC_BASE + 6)
 #endif
diff --git a/sandbox/linux/system_headers/android_futex.h b/sandbox/linux/system_headers/linux_futex.h
index 11b766f..91733a8 100644
--- a/sandbox/linux/system_headers/android_futex.h
+++ b/sandbox/linux/system_headers/linux_futex.h
@@ -2,8 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SANDBOX_LINUX_SYSTEM_HEADERS_ANDROID_FUTEX_H_
-#define SANDBOX_LINUX_SYSTEM_HEADERS_ANDROID_FUTEX_H_
+#ifndef SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_FUTEX_H_
+#define SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_FUTEX_H_
+
+#include <linux/futex.h>
 
 #if !defined(FUTEX_WAIT)
 #define FUTEX_WAIT 0
@@ -77,4 +79,4 @@
 #define FUTEX_UNLOCK_PI_PRIVATE (FUTEX_UNLOCK_PI | FUTEX_PRIVATE_FLAG)
 #endif
 
-#endif  // SANDBOX_LINUX_SYSTEM_HEADERS_ANDROID_FUTEX_H_
+#endif  // SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_FUTEX_H_