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atexit.c: New file.

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* config/rs6000/atexit.c: New file.
* config/rs6000/t-aix-cxa (LIB2ADDEH): Build atexit.c.
* config/rs6000/libgcc-aix-cxa.ver (atexit): Add symbol to exports.
* config/rs6000/cxa_finalize.c
(catomic_compare_and_exchange_bool_acq): Negate return value.

From-SVN: r229932
This commit is contained in:
David Edelsohn 2015-11-07 14:23:32 +00:00 committed by David Edelsohn
parent 6ca5a44255
commit 3dee689d8f
5 changed files with 60 additions and 3 deletions
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8
libgcc/ChangeLog
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@ -1,3 +1,11 @@
2015-11-07 David Edelsohn <dje.gcc@gmail.com>
* config/rs6000/atexit.c: New file.
* config/rs6000/t-aix-cxa (LIB2ADDEH): Build atexit.c.
* config/rs6000/libgcc-aix-cxa.ver (atexit): Add symbol to exports.
* config/rs6000/cxa_finalize.c
(catomic_compare_and_exchange_bool_acq): Negate return value.
2015-10-30 Venkataramanan Kumar <venkataramanan.kumar@amd.com>
* config/i386/cpuinfo.c (enum processor_types): Add AMDFAM17H.

44
libgcc/config/rs6000/atexit.c Normal file
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@ -0,0 +1,44 @@
/* 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"
/* This is defined by newer gcc version unique for each module. */
extern void *__dso_handle __attribute__ ((__weak__));
/* Register FUNC to be executed by `exit'. */
int
#ifndef atexit
attribute_hidden
#endif
atexit (void (*func) (void))
{
return __cxa_atexit ((void (*) (void *)) func, NULL,
&__dso_handle == NULL ? NULL : __dso_handle);
}

4
libgcc/config/rs6000/cxa_finalize.c
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@ -32,8 +32,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
static boolean_t
catomic_compare_and_exchange_bool_acq (long *mem, long newval, long oldval)
{
return __atomic_compare_exchange (mem, &oldval, &newval, 0,
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
return ! __atomic_compare_exchange (mem, &oldval, &newval, 0,
__ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);
}
/* If D is non-NULL, call all functions registered with `__cxa_atexit'

4
libgcc/config/rs6000/libgcc-aix-cxa.ver
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@ -7,3 +7,7 @@ GCC_4.9 {
_GLOBAL__AIXI_shr_o
_GLOBAL__AIXD_shr_o
}
GCC_5 {
atexit
}

3
libgcc/config/rs6000/t-aix-cxa
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@ -1,5 +1,6 @@
LIB2ADDEH += $(srcdir)/config/rs6000/cxa_atexit.c \
$(srcdir)/config/rs6000/cxa_finalize.c
$(srcdir)/config/rs6000/cxa_finalize.c \
$(srcdir)/config/rs6000/atexit.c
LIB2ADD_ST += $(srcdir)/config/rs6000/aixinitfini.c