1 files changed, 0 insertions, 125 deletions
diff --git a/ports/sysdeps/arm/backtrace.c b/ports/sysdeps/arm/backtrace.c
deleted file mode 100644
index 15ba506411..0000000000
--- a/ports/sysdeps/arm/backtrace.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/* Return backtrace of current program state.
-   Copyright (C) 2008-2014 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Kazu Hirata <kazu@codesourcery.com>, 2008.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library.  If not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <bits/libc-lock.h>
-#include <dlfcn.h>
-#include <execinfo.h>
-#include <stdlib.h>
-#include <unwind.h>
-
-struct trace_arg
-{
-  void **array;
-  int cnt, size;
-};
-
-#ifdef SHARED
-static _Unwind_Reason_Code (*unwind_backtrace) (_Unwind_Trace_Fn, void *);
-static _Unwind_VRS_Result (*unwind_vrs_get) (_Unwind_Context *,
-					     _Unwind_VRS_RegClass,
-					     _uw,
-					     _Unwind_VRS_DataRepresentation,
-					     void *);
-
-static void *libgcc_handle;
-
-static void
-init (void)
-{
-  libgcc_handle = __libc_dlopen ("libgcc_s.so.1");
-
-  if (libgcc_handle == NULL)
-    return;
-
-  unwind_backtrace = __libc_dlsym (libgcc_handle, "_Unwind_Backtrace");
-  unwind_vrs_get = __libc_dlsym (libgcc_handle, "_Unwind_VRS_Get");
-  if (unwind_vrs_get == NULL)
-    unwind_backtrace = NULL;
-}
-
-/* This function is identical to "_Unwind_GetGR", except that it uses
-   "unwind_vrs_get" instead of "_Unwind_VRS_Get".  */
-static inline _Unwind_Word
-unwind_getgr (_Unwind_Context *context, int regno)
-{
-  _uw val;
-  unwind_vrs_get (context, _UVRSC_CORE, regno, _UVRSD_UINT32, &val);
-  return val;
-}
-
-/* This macro is identical to the _Unwind_GetIP macro, except that it
-   uses "unwind_getgr" instead of "_Unwind_GetGR".  */
-# define unwind_getip(context) \
-  (unwind_getgr (context, 15) & ~(_Unwind_Word)1)
-#else
-# define unwind_backtrace _Unwind_Backtrace
-# define unwind_getip _Unwind_GetIP
-#endif
-
-static _Unwind_Reason_Code
-backtrace_helper (struct _Unwind_Context *ctx, void *a)
-{
-  struct trace_arg *arg = a;
-
-  /* We are first called with address in the __backtrace function.
-     Skip it.  */
-  if (arg->cnt != -1)
-    arg->array[arg->cnt] = (void *) unwind_getip (ctx);
-  if (++arg->cnt == arg->size)
-    return _URC_END_OF_STACK;
-  return _URC_NO_REASON;
-}
-
-int
-__backtrace (array, size)
-     void **array;
-     int size;
-{
-  struct trace_arg arg = { .array = array, .size = size, .cnt = -1 };
-#ifdef SHARED
-  __libc_once_define (static, once);
-
-  __libc_once (once, init);
-  if (unwind_backtrace == NULL)
-    return 0;
-#endif
-
-  if (size >= 1)
-    unwind_backtrace (backtrace_helper, &arg);
-
-  if (arg.cnt > 1 && arg.array[arg.cnt - 1] == NULL)
-    --arg.cnt;
-  return arg.cnt != -1 ? arg.cnt : 0;
-}
-weak_alias (__backtrace, backtrace)
-libc_hidden_def (__backtrace)
-
-
-#ifdef SHARED
-/* Free all resources if necessary.  */
-libc_freeres_fn (free_mem)
-{
-  unwind_backtrace = NULL;
-  if (libgcc_handle != NULL)
-    {
-      __libc_dlclose (libgcc_handle);
-      libgcc_handle = NULL;
-    }
-}
-#endif