From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jeremy Apthorp <nornagon@nornagon.net>
Date: Tue, 5 Mar 2019 11:12:55 -0800
Subject: fix: build on arm

backports https://chromium-review.googlesource.com/c/chromium/src/+/1496448

diff --git a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
index 55394a791a54a2650fa2e1ed4d4e293b940d8fa2..68ce32a136ccc5130e3544b67dfb4af5c8b47a56 100644
--- a/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
+++ b/sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.cc
@@ -34,12 +34,14 @@
 #if !defined(OS_NACL_NONSFI)
 #include <sys/ioctl.h>
 #include <sys/ptrace.h>
-#if !defined(PTRACE_GET_THREAD_AREA) && defined(OS_LINUX) && \
-    !defined(OS_CHROMEOS)
+#if defined(OS_LINUX) && !defined(OS_CHROMEOS) && !defined(__arm__) && \
+    !defined(__aarch64__) && !defined(PTRACE_GET_THREAD_AREA)
 // Also include asm/ptrace-abi.h since ptrace.h in older libc (for instance
 // the one in Ubuntu 16.04 LTS) is missing PTRACE_GET_THREAD_AREA.
+// asm/ptrace-abi.h doesn't exist on arm32 and PTRACE_GET_THREAD_AREA isn't
+// defined on aarch64, so don't try to include this on those platforms.
 #include <asm/ptrace-abi.h>
-#endif  // !PTRACE_GET_THREAD_AREA && OS_LINUX && !OS_CHROMEOS
+#endif
 #endif  // !OS_NACL_NONSFI
 
 #if defined(OS_ANDROID)