diff gcc/gbl-ctors.h @ 0:a06113de4d67

first commit
author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
parents
children 77e2b8dfacca
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/gbl-ctors.h	Fri Jul 17 14:47:48 2009 +0900
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+/* Definitions relating to the special __do_global_init function used
+   for getting g++ file-scope static objects constructed.  This file
+   will get included either by libgcc2.c (for systems that don't support
+   a .init section) or by crtstuff.c (for those that do).
+   Copyright (C) 1991, 1995, 1996, 1998, 1999, 2000, 2003, 2009
+   Free Software Foundation, Inc.
+   Contributed by Ron Guilmette (rfg@segfault.us.com)
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC 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 General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*	This file contains definitions and declarations of things
+	relating to the normal start-up-time invocation of C++
+	file-scope static object constructors.  These declarations
+	and definitions are used by *both* libgcc2.c and by crtstuff.c.
+
+	Note that this file should only be compiled with GCC.
+*/
+
+/*  Declare a pointer to void function type.  */
+
+typedef void (*func_ptr) (void);
+
+/* Declare the set of symbols use as begin and end markers for the lists
+   of global object constructors and global object destructors.  */
+
+extern func_ptr __CTOR_LIST__[];
+extern func_ptr __DTOR_LIST__[];
+
+/* Declare the routine which needs to get invoked at program start time.  */
+
+extern void __do_global_ctors (void);
+
+/* Declare the routine which needs to get invoked at program exit time.  */
+
+extern void __do_global_dtors (void);
+
+/* Define a macro with the code which needs to be executed at program
+   start-up time.  This macro is used in two places in crtstuff.c (for
+   systems which support a .init section) and in one place in libgcc2.c
+   (for those system which do *not* support a .init section).  For all
+   three places where this code might appear, it must be identical, so
+   we define it once here as a macro to avoid various instances getting
+   out-of-sync with one another.  */
+
+/* Some systems place the number of pointers
+   in the first word of the table.
+   On other systems, that word is -1.
+   In all cases, the table is null-terminated.
+   If the length is not recorded, count up to the null.  */
+
+/* Some systems use a different strategy for finding the ctors.
+   For example, svr3.  */
+#ifndef DO_GLOBAL_CTORS_BODY
+#define DO_GLOBAL_CTORS_BODY						\
+do {									\
+  unsigned long nptrs = (unsigned long) __CTOR_LIST__[0];		\
+  unsigned i;								\
+  if (nptrs == (unsigned long)-1)				        \
+    for (nptrs = 0; __CTOR_LIST__[nptrs + 1] != 0; nptrs++);		\
+  for (i = nptrs; i >= 1; i--)						\
+    __CTOR_LIST__[i] ();						\
+} while (0)
+#endif
+