Fix compilation of base for arm64

base/debug/debugger_posix.cc

 // Copyright (c) 2012 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.
 
 #include "base/debug/debugger.h"
 #include "build/build_config.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
@@ skipping 181 matching lines @@
 // +-------+-----------------+-----------------+
 // | Linux |       N         |        Y        |
 // | Mac   |       Y         |        N        |
 // +-------+-----------------+-----------------+
 //
 // Thus we do the following:
 // Linux: Debug mode if a debugger is attached, send SIGTRAP; otherwise send
 //        SIGABRT
 // Mac: Always send SIGTRAP.
 
-#if defined(ARCH_CPU_ARM_FAMILY)
+#if defined(ARCH_CPU_ARMEL)
 #define DEBUG_BREAK_ASM() asm("bkpt 0")
+#elif defined(ARCH_CPU_ARM64)
+#define DEBUG_BREAK_ASM() asm("brk 0")
 #elif defined(ARCH_CPU_MIPS_FAMILY)
 #define DEBUG_BREAK_ASM() asm("break 2")
 #elif defined(ARCH_CPU_X86_FAMILY)
 #define DEBUG_BREAK_ASM() asm("int3")
 #endif
 
 #if defined(NDEBUG) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
 #define DEBUG_BREAK() abort()
 #elif defined(OS_NACL)
 // The NaCl verifier doesn't let use use int3.  For now, we call abort().  We
@@ skipping 48 matching lines @@
   // attach the debugger, inspect the state of the program and then resume it by
   // setting the 'go' variable above.
 #elif defined(NDEBUG)
   // Terminate the program after signaling the debug break.
   _exit(1);
 #endif
 }
 
 }  // namespace debug
 }  // namespace base