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on_exit.c: New file.

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* config/rs6000/on_exit.c: New file.
        * config/rs6000/t-aix-cxa (LIB2ADDEH): Build on_exit.c.
        * config/rs6000/libgcc-aix-cxa.ver (on_exit): Add symbol to exports.

From-SVN: r230398
This commit is contained in:
David Edelsohn 2015-11-15 23:41:44 +00:00 committed by David Edelsohn
parent 01a0467e23
commit d9adb4761a
4 changed files with 58 additions and 1 deletions
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6
libgcc/ChangeLog
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@ -1,3 +1,9 @@
2015-11-15 David Edelsohn <dje.gcc@gmail.com>
* config/rs6000/on_exit.c: New file.
* config/rs6000/t-aix-cxa (LIB2ADDEH): Build on_exit.c.
* config/rs6000/libgcc-aix-cxa.ver (on_exit): Add symbol to exports.
2015-11-11 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/dp-hack.h: Add support for ARCHS.

1
libgcc/config/rs6000/libgcc-aix-cxa.ver
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@ -10,4 +10,5 @@ GCC_4.9 {
GCC_5 {
atexit
on_exit
}

49
libgcc/config/rs6000/on_exit.c Normal file
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@ -0,0 +1,49 @@
/* Copyright (C) 1999-2015 Free Software Foundation, Inc.
NOTE: This source is derived from an old version taken from the GNU C
Library (glibc).
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/>. */
#include <stdlib.h>
#include "exit.h"
#define atomic_write_barrier() __asm__ ("eieio" ::: "memory")
/* Register a function to be called by exit. */
int
on_exit (void (*func) (int status, void *arg), void *arg)
{
struct exit_function *new = __new_exitfn (&__exit_funcs);
if (new == NULL)
return -1;
#ifdef PTR_MANGLE
PTR_MANGLE (func);
#endif
new->func.on.fn = func;
new->func.on.arg = arg;
atomic_write_barrier ();
new->flavor = ef_on;
return 0;
}

3
libgcc/config/rs6000/t-aix-cxa
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@ -1,6 +1,7 @@
LIB2ADDEH += $(srcdir)/config/rs6000/cxa_atexit.c \
$(srcdir)/config/rs6000/cxa_finalize.c \
$(srcdir)/config/rs6000/atexit.c
$(srcdir)/config/rs6000/atexit.c \
$(srcdir)/config/rs6000/on_exit.c
LIB2ADD_ST += $(srcdir)/config/rs6000/aixinitfini.c