1 files changed, 0 insertions, 139 deletions
diff --git a/ports/sysdeps/microblaze/backtrace.c b/ports/sysdeps/microblaze/backtrace.c
deleted file mode 100644
index 6b0c617b0f..0000000000
--- a/ports/sysdeps/microblaze/backtrace.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
-
-   This file is part of the GNU C Library.
-
-   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 <stdio.h>
-#include <string.h>
-#include <sysdep.h>
-#include <signal.h>
-#include <execinfo.h>
-
-extern int
-_identify_sighandler (unsigned long fp, unsigned long pc,
-                      unsigned long *pprev_fp, unsigned long *pprev_pc,
-                      unsigned long *retaddr);
-
-inline long
-get_frame_size (unsigned long instr)
-{
-  return abs ((short signed) (instr & 0xFFFF));
-}
-
-static unsigned long *
-find_frame_creation (unsigned long *pc)
-{
-  int i;
-
-  /* NOTE: Distance to search is arbitrary.
-     250 works well for most things,
-     750 picks up things like tcp_recvmsg,
-     1000 needed for fat_fill_super.  */
-  for (i = 0; i < 1000; i++, pc--)
-    {
-      unsigned long instr;
-      unsigned long frame_size;
-
-      instr = *pc;
-
-      /* Is the instruction of the form
-         addik r1, r1, foo ? */
-      if ((instr & 0xFFFF0000) != 0x30210000)
-        continue;
-
-      frame_size = get_frame_size (instr);
-
-      if ((frame_size < 8) || (frame_size & 3))
-        return NULL;
-
-      return pc;
-    }
-  return NULL;
-}
-
-static int
-lookup_prev_stack_frame (unsigned long fp, unsigned long pc,
-                         unsigned long *pprev_fp, unsigned long *pprev_pc,
-                         unsigned long *retaddr)
-{
-  unsigned long *prologue = NULL;
-
-  int is_signalhandler = _identify_sighandler (fp, pc, pprev_fp,
-                                               pprev_pc, retaddr);
-
-  if (!is_signalhandler)
-    {
-      prologue = find_frame_creation ((unsigned long *) pc);
-
-      if (prologue)
-        {
-          long frame_size = get_frame_size (*prologue);
-          *pprev_fp = fp + frame_size;
-          if (*retaddr != 0)
-            *pprev_pc = *retaddr;
-          else
-            *pprev_pc = *(unsigned long *) fp;
-
-          *retaddr = 0;
-          if (!*pprev_pc || (*pprev_pc & 3))
-            prologue=0;
-        }
-      else
-        {
-          *pprev_pc = 0;
-          *pprev_fp = fp;
-          *retaddr = 0;
-        }
-    }
-    return (!*pprev_pc || (*pprev_pc & 3)) ? -1 : 0;
-}
-
-int
-__backtrace (void **array, int size)
-{
-  unsigned long pc, fp;
-  unsigned long ppc, pfp;
-  /* Return address(r15) is required in the signal handler case, since the
-     return address of the function which causes the signal may not be
-     recorded in the stack.  */
-  unsigned long retaddr;
-
-  int count;
-  int rc = 0;
-
-  __asm__ __volatile__ ("mfs %0, rpc"
-                        : "=r"(pc));
-
-  __asm__ __volatile__ ("add %0, r1, r0"
-                        : "=r"(fp));
-
-  array[0] = (void *) pc;
-  retaddr = 0;
-  for (count = 1; count < size; count++)
-    {
-      rc = lookup_prev_stack_frame (fp, pc, &pfp, &ppc, &retaddr);
-
-      fp = pfp;
-      pc = ppc;
-      array[count] = (void *) pc;
-      if (rc)
-        return count;
-    }
-  return count;
-}
-
-weak_alias (__backtrace, backtrace)
-libc_hidden_def (__backtrace)