From d75a0a62b12c35ee85f786d5f8d155ab39909411 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 7 Jan 2012 11:19:05 -0500 Subject: Remove IA-64 support --- sysdeps/ia64/backtrace.c | 133 ----------------------------------------------- 1 file changed, 133 deletions(-) delete mode 100644 sysdeps/ia64/backtrace.c (limited to 'sysdeps/ia64/backtrace.c') diff --git a/sysdeps/ia64/backtrace.c b/sysdeps/ia64/backtrace.c deleted file mode 100644 index d4ff291022..0000000000 --- a/sysdeps/ia64/backtrace.c +++ /dev/null @@ -1,133 +0,0 @@ -/* Return backtrace of current program state. - Copyright (C) 2003-2005, 2007, 2009, 2011 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek , 2003. - - 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, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#include -#include -#include -#include -#include - -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; - - /* We are first called with address in the __backtrace function. - Skip it. */ - if (arg->cnt != -1) - { - arg->array[arg->cnt] = (void *) unwind_getip (ctx); - - /* 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 (array, size) - void **array; - int size; -{ - struct trace_arg arg = { .array = array, .cfa = 0, .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); - - /* _Unwind_Backtrace on IA-64 seems to put NULL address above - _start. Fix it up here. */ - 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 -- cgit 1.4.1