mklibgcc.in (lib2funcs): Remove _exit.

        * mklibgcc.in (lib2funcs): Remove _exit.
        * libgcc2.c: Remove L_exit.
        * gbl-ctors.h: Remove declarations dependend on NEED_ATEXIT.

        * system.h: Poison NEED_ATEXIT, ON_EXIT, EXIT_BODY.

        * doc/tm.texi (Misc): Remove NEED_ATEXIT, ON_EXIT, EXIT_BODY.

From-SVN: r67599

gcc/ChangeLog

 2003-06-07  Andreas Jaeger  <aj@suse.de>
 
+	* mklibgcc.in (lib2funcs): Remove _exit.
+	* libgcc2.c: Remove L_exit.
+	* gbl-ctors.h: Remove declarations dependend on NEED_ATEXIT.
+
+	* system.h: Poison NEED_ATEXIT, ON_EXIT, EXIT_BODY.
+
+	* doc/tm.texi (Misc): Remove NEED_ATEXIT, ON_EXIT, EXIT_BODY.
+
 	* ggc.h: Convert to ISO C90 prototypes.
 	* ggc-none.c: Likewise.
 	* ggc-common.c: Likewise.

gcc/doc/tm.texi

@@ -9006,30 +9006,6 @@ The definition should be a C statement (sans semicolon) to generate the
 appropriate rtl instructions.  It is used only when compiling the end of
 @code{main}.
 
-@item NEED_ATEXIT
-@findex NEED_ATEXIT
-Define this if the target system lacks the function @code{atexit}
-from the ISO C standard.  If this macro is defined, a default definition
-will be provided to support C++.  If @code{ON_EXIT} is not defined,
-a default @code{exit} function will also be provided.
-
-@item ON_EXIT
-@findex ON_EXIT
-Define this macro if the target has another way to implement atexit
-functionality without replacing @code{exit}.  For instance, SunOS 4 has
-a similar @code{on_exit} library function.
-
-The definition should be a functional macro which can be used just like
-the @code{atexit} function.
-
-@item EXIT_BODY
-@findex EXIT_BODY
-Define this if your @code{exit} function needs to do something
-besides calling an external function @code{_cleanup} before
-terminating with @code{_exit}.  The @code{EXIT_BODY} macro is
-only needed if @code{NEED_ATEXIT} is defined and @code{ON_EXIT} is not
-defined.
-
 @findex INSN_SETS_ARE_DELAYED
 @item INSN_SETS_ARE_DELAYED (@var{insn})
 Define this macro as a C expression that is nonzero if it is safe for the

gcc/gbl-ctors.h

@@ -2,7 +2,7 @@
    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
+   Copyright (C) 1991, 1995, 1996, 1998, 1999, 2000, 2003
    Free Software Foundation, Inc.
    Contributed by Ron Guilmette (rfg@segfault.us.com)
 
@@ -38,10 +38,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 	Note that this file should only be compiled with GCC.
 */
 
-#ifdef NEED_ATEXIT
-extern int atexit (void (*) (void));
-#endif
-
 /*  Declare a pointer to void function type.  */
 
 typedef void (*func_ptr) (void);

gcc/libgcc2.c

@@ -1669,78 +1669,3 @@ func_ptr __DTOR_LIST__[2];
 #endif /* no INIT_SECTION_ASM_OP and not CTOR_LISTS_DEFINED_EXTERNALLY */
 #endif /* L_ctors */
 
-#ifdef L_exit
-
-#include "gbl-ctors.h"
-
-#ifdef NEED_ATEXIT
-
-#ifndef ON_EXIT
-
-# include <errno.h>
-
-static func_ptr *atexit_chain = 0;
-static long atexit_chain_length = 0;
-static volatile long last_atexit_chain_slot = -1;
-
-int
-atexit (func_ptr func)
-{
-  if (++last_atexit_chain_slot == atexit_chain_length)
-    {
-      atexit_chain_length += 32;
-      if (atexit_chain)
-	atexit_chain = (func_ptr *) realloc (atexit_chain, atexit_chain_length
-					     * sizeof (func_ptr));
-      else
-	atexit_chain = (func_ptr *) malloc (atexit_chain_length
-					    * sizeof (func_ptr));
-      if (! atexit_chain)
-	{
-	  atexit_chain_length = 0;
-	  last_atexit_chain_slot = -1;
-	  errno = ENOMEM;
-	  return (-1);
-	}
-    }
-  atexit_chain[last_atexit_chain_slot] = func;
-  return (0);
-}
-
-extern void _cleanup (void);
-extern void _exit (int) __attribute__ ((__noreturn__));
-
-void
-exit (int status)
-{
-  if (atexit_chain)
-    {
-      for ( ; last_atexit_chain_slot-- >= 0; )
-	{
-	  (*atexit_chain[last_atexit_chain_slot + 1]) ();
-	  atexit_chain[last_atexit_chain_slot + 1] = 0;
-	}
-      free (atexit_chain);
-      atexit_chain = 0;
-    }
-#ifdef EXIT_BODY
-  EXIT_BODY;
-#else
-  _cleanup ();
-#endif
-  _exit (status);
-}
-
-#else /* ON_EXIT */
-
-/* Simple; we just need a wrapper for ON_EXIT.  */
-int
-atexit (func_ptr func)
-{
-  return ON_EXIT (func);
-}
-
-#endif /* ON_EXIT */
-#endif /* NEED_ATEXIT */
-
-#endif /* L_exit */

gcc/mklibgcc.in

@@ -48,7 +48,7 @@ lib2funcs='_muldi3 _negdi2 _lshrdi3 _ashldi3 _ashrdi3
 	_cmpdi2 _ucmpdi2 _floatdidf _floatdisf _fixunsdfsi _fixunssfsi
 	_fixunsdfdi _fixdfdi _fixunssfdi _fixsfdi _fixxfdi _fixunsxfdi
 	_floatdixf _fixunsxfsi _fixtfdi _fixunstfdi _floatditf _clear_cache
-	_trampoline __main _exit _absvsi2 _absvdi2 _addvsi3 _addvdi3
+	_trampoline __main _absvsi2 _absvdi2 _addvsi3 _addvdi3
 	_subvsi3 _subvdi3 _mulvsi3 _mulvdi3 _negvsi2 _negvdi2 _ctors
 	_ffssi2 _ffsdi2 _clz _clzsi2 _clzdi2 _ctzsi2 _ctzdi2 _popcount_tab
 	_popcountsi2 _popcountdi2 _paritysi2 _paritydi2'

gcc/system.h

@@ -645,7 +645,8 @@ typedef char _Bool;
 	ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT	   \
 	DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME	   \
 	DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE		   \
-	INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE
+	INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT	   \
+	EXIT_BODY
 
 /* Hooks that are no longer used.  */
  #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE	\