Experiment for updating the tcmalloc chromium branch to r144 (gperftools 2.0).

third_party/tcmalloc/chromium/src/stacktrace_config.h

 // Copyright (c) 2009, Google Inc.
 // All rights reserved.
 // 
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 // 
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 50 matching lines @@
 # endif
 
 // The PowerPC case
 #elif (defined(__ppc__) || defined(__PPC__)) && __GNUC__ >= 2
 # if !defined(NO_FRAME_POINTER)
 #   define STACKTRACE_INL_HEADER "stacktrace_powerpc-inl.h"
 # else
 #   define STACKTRACE_INL_HEADER "stacktrace_generic-inl.h"
 # endif
 
+// The ARM case
+#elif defined(__arm__)  && __GNUC__ >= 2
+# if !defined(NO_FRAME_POINTER)
+#   define STACKTRACE_INL_HEADER "stacktrace_arm-inl.h"
+# else
+#   error stacktrace without frame pointer is not supported on ARM
+# endif
+
 // The Windows case -- probably cygwin and mingw will use one of the
 // x86-includes above, but if not, we can fall back to windows intrinsics.
 #elif defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__) || defined(__MINGW32__)
 # define STACKTRACE_INL_HEADER "stacktrace_win32-inl.h"
 
 #endif  // all the cases
 #endif  // BASE_STACKTRACE_CONFIG_H_