--- /dev/null
+/* .init/.fini section handling + C++ global constructor/destructor handling.
+ This file is based on crtstuff.c, sol2-crti.asm, sol2-crtn.asm.
+
+Copyright (C) 1995, 1997 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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 2, or (at your option)
+any later version.
+
+GNU CC 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.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING. If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* As a special exception, if you link this file with files
+ compiled with GCC to produce an executable, this does not cause
+ the resulting executable to be covered by the GNU General Public License.
+ This exception does not however invalidate any other reasons why
+ the executable file might be covered by the GNU General Public License. */
+
+/* Declare a pointer to void function type. */
+typedef void (*func_ptr) (void);
+
+#ifdef CRT_INIT
+
+/* NOTE: In order to be able to support SVR4 shared libraries, we arrange
+ to have one set of symbols { __CTOR_LIST__, __DTOR_LIST__, __CTOR_END__,
+ __DTOR_END__ } per root executable and also one set of these symbols
+ per shared library. So in any given whole process image, we may have
+ multiple definitions of each of these symbols. In order to prevent
+ these definitions from conflicting with one another, and in order to
+ ensure that the proper lists are used for the initialization/finalization
+ of each individual shared library (respectively), we give these symbols
+ only internal (i.e. `static') linkage, and we also make it a point to
+ refer to only the __CTOR_END__ symbol in crtfini.o and the __DTOR_LIST__
+ symbol in crtinit.o, where they are defined. */
+
+static func_ptr __CTOR_LIST__[1] __attribute__ ((section (".ctors")))
+ = { (func_ptr) (-1) };
+
+static func_ptr __DTOR_LIST__[1] __attribute__ ((section (".dtors")))
+ = { (func_ptr) (-1) };
+
+/* Run all the global destructors on exit from the program. */
+
+/* Some systems place the number of pointers in the first word of the
+ table. On SVR4 however, that word is -1. In all cases, the table is
+ null-terminated. On SVR4, we start from the beginning of the list and
+ invoke each per-compilation-unit destructor routine in order
+ until we find that null.
+
+ Note that this function MUST be static. There will be one of these
+ functions in each root executable and one in each shared library, but
+ although they all have the same code, each one is unique in that it
+ refers to one particular associated `__DTOR_LIST__' which belongs to the
+ same particular root executable or shared library file. */
+
+static void __do_global_dtors ()
+asm ("__do_global_dtors") __attribute__ ((section (".text")));
+
+static void
+__do_global_dtors ()
+{
+ func_ptr *p;
+ for (p = __DTOR_LIST__ + 1; *p; p++)
+ (*p) ();
+}
+
+/* .init section start.
+ This must appear at the start of the .init section. */
+
+asm ("
+ .section .init\n
+ .global init\n
+ .word 0\n
+init:\n
+ st blink,[sp,4]\n
+ st fp,[sp]\n
+ mov fp,sp\n
+ sub sp,sp,16\n
+");
+
+/* .fini section start.
+ This must appear at the start of the .init section. */
+
+asm ("
+ .section .fini\n
+ .global fini\n
+ .word 0\n
+fini:\n
+ st blink,[sp,4]\n
+ st fp,[sp]\n
+ mov fp,sp\n
+ sub sp,sp,16\n
+ bl.nd __do_global_dtors
+");
+
+#endif /* CRT_INIT */
+
+#ifdef CRT_FINI
+
+/* Put a word containing zero at the end of each of our two lists of function
+ addresses. Note that the words defined here go into the .ctors and .dtors
+ sections of the crtend.o file, and since that file is always linked in
+ last, these words naturally end up at the very ends of the two lists
+ contained in these two sections. */
+
+static func_ptr __CTOR_END__[1] __attribute__ ((section (".ctors")))
+ = { (func_ptr) 0 };
+
+static func_ptr __DTOR_END__[1] __attribute__ ((section (".dtors")))
+ = { (func_ptr) 0 };
+
+/* Run all global constructors for the program.
+ Note that they are run in reverse order. */
+
+static void __do_global_ctors ()
+asm ("__do_global_ctors") __attribute__ ((section (".text")));
+
+static void
+__do_global_ctors ()
+{
+ func_ptr *p;
+ for (p = __CTOR_END__ - 1; *p != (func_ptr) -1; p--)
+ (*p) ();
+}
+
+/* .init section end.
+ This must live at the end of the .init section. */
+
+asm ("
+ .section .init\n
+ bl.nd __do_global_ctors
+ ld blink,[fp,4]\n
+ j.d blink\n
+ ld.a fp,[sp,16]\n
+");
+
+/* .fini section end.
+ This must live at the end of the .fini section. */
+
+asm ("
+ .section .fini\n
+ ld blink,[fp,4]\n
+ j.d blink\n
+ ld.a fp,[sp,16]\n
+");
+
+#endif /* CRT_FINI */
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