1 files changed, 0 insertions, 159 deletions
diff --git a/sysdeps/sparc/backtrace.c b/sysdeps/sparc/backtrace.c
deleted file mode 100644
index 2887031c72..0000000000
--- a/sysdeps/sparc/backtrace.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/* Return backtrace of current program state.
-   Copyright (C) 2013-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by David S. Miller <davem@davemloft.net>
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation; either version 2 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
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU C Library; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#include <execinfo.h>
-#include <stddef.h>
-#include <sysdep.h>
-#include <sys/trap.h>
-#include <dlfcn.h>
-#include <unwind.h>
-#include <backtrace.h>
-
-struct layout
-{
-  unsigned long locals[8];
-  unsigned long ins[6];
-  unsigned long next;
-  void *return_address;
-};
-
-struct trace_arg
-{
-  void **array;
-  _Unwind_Word cfa;
-  int cnt;
-  int size;
-};
-
-#ifdef SHARED
-static _Unwind_Reason_Code (*unwind_backtrace) (_Unwind_Trace_Fn, void *);
-static _Unwind_Ptr (*unwind_getip) (struct _Unwind_Context *);
-static _Unwind_Word (*unwind_getcfa) (struct _Unwind_Context *);
-static void *libgcc_handle;
-
-/* Dummy version in case libgcc_s does not contain the real code.  */
-static _Unwind_Word
-dummy_getcfa (struct _Unwind_Context *ctx __attribute__ ((unused)))
-{
-  return 0;
-}
-
-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_getip = __libc_dlsym (libgcc_handle, "_Unwind_GetIP");
-  if (unwind_getip == NULL)
-    unwind_backtrace = NULL;
-  unwind_getcfa = (__libc_dlsym (libgcc_handle, "_Unwind_GetCFA")
-		  ?: dummy_getcfa);
-}
-#else
-# define unwind_backtrace _Unwind_Backtrace
-# define unwind_getip _Unwind_GetIP
-# define unwind_getcfa _Unwind_GetCFA
-#endif
-
-static _Unwind_Reason_Code
-backtrace_helper (struct _Unwind_Context *ctx, void *a)
-{
-  struct trace_arg *arg = a;
-  _Unwind_Ptr ip;
-
-  /* We are first called with address in the __backtrace function.
-     Skip it.  */
-  if (arg->cnt != -1)
-    {
-      ip = unwind_getip (ctx);
-      arg->array[arg->cnt] = (void *) ip;
-
-      /* Check whether we make any progress.  */
-      _Unwind_Word cfa = unwind_getcfa (ctx);
-
-      if (arg->cnt > 0 && arg->array[arg->cnt - 1] == arg->array[arg->cnt]
-	 && cfa == arg->cfa)
-       return _URC_END_OF_STACK;
-      arg->cfa = cfa;
-    }
-  if (++arg->cnt == arg->size)
-    return _URC_END_OF_STACK;
-  return _URC_NO_REASON;
-}
-
-int
-__backtrace (void **array, int size)
-{
-  struct trace_arg arg = { .array = array, .cfa = 0, .size = size, .cnt = -1 };
-  bool use_unwinder;
-  int count;
-
-  if (size <= 0)
-    return 0;
-
-  use_unwinder = true;
-#ifdef SHARED
-  __libc_once_define (static, once);
-
-  __libc_once (once, init);
-  if (unwind_backtrace == NULL)
-    use_unwinder = false;
-#endif
-
-  if (use_unwinder == false)
-    {
-      struct layout *current;
-      unsigned long fp, i7;
-
-      asm volatile ("mov %%fp, %0" : "=r"(fp));
-      asm volatile ("mov %%i7, %0" : "=r"(i7));
-      current = (struct layout *) (fp + BACKTRACE_STACK_BIAS);
-
-      array[0] = (void *) i7;
-
-      if (size == 1)
-	return 1;
-
-      backtrace_flush_register_windows();
-      for (count = 1; count < size; count++)
-	{
-	  array[count] = current->return_address;
-	  if (!current->next)
-	    break;
-	  current = (struct layout *) (current->next + BACKTRACE_STACK_BIAS);
-	}
-    }
-  else
-    {
-      unwind_backtrace (backtrace_helper, &arg);
-
-      /* _Unwind_Backtrace seems to put NULL address above
-	 _start.  Fix it up here.  */
-      if (arg.cnt > 1 && arg.array[arg.cnt - 1] == NULL)
-	--arg.cnt;
-      count = arg.cnt != -1 ? arg.cnt : 0;
-    }
-  return count;
-}
-weak_alias (__backtrace, backtrace)
-libc_hidden_def (__backtrace)