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/* Global constructor/destructor support
Copyright (C) 2024-2025 Free Software Foundation, Inc.
This file 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.
This file 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 "auto-target.h"
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#include "gbl-ctors.h"
extern int atexit (void (*function) (void));
/* Host/device compatibility: '__cxa_finalize'. Dummy; if necessary,
overridden via libgomp 'target-cxa-dso-dtor.c'. */
extern void __GCC_offload___cxa_finalize (void *);
void __attribute__((weak))
__GCC_offload___cxa_finalize (void *dso_handle __attribute__((unused)))
{
}
/* There are no DSOs; this is the main program. */
static void * const __dso_handle = 0;
/* Handler functions ('static', in contrast to the 'gbl-ctors.h'
prototypes). */
static void __static_do_global_ctors (void);
static void
__static_do_global_ctors (void)
{
__SIZE_TYPE__ nptrs = (__SIZE_TYPE__) __CTOR_LIST__[0];
for (__SIZE_TYPE__ i = nptrs; i >= 1; --i)
__CTOR_LIST__[i] ();
}
static void __static_do_global_dtors (void);
static void
__static_do_global_dtors (void)
{
__GCC_offload___cxa_finalize (__dso_handle);
func_ptr *p = __DTOR_LIST__;
++p;
for (; *p; ++p)
(*p) ();
}
/* For nvptx target configurations, override the 'crt0.c' dummy. */
extern void __gbl_ctors (void);
void
__gbl_ctors (void)
{
__static_do_global_ctors ();
atexit (__static_do_global_dtors);
}
/* For nvptx offloading configurations, need '.entry' wrappers. */
# if defined(__nvptx_softstack__) && defined(__nvptx_unisimt__)
/* OpenMP */
/* See 'crt0.c', 'mgomp.c'. */
extern void *__nvptx_stacks[32] __attribute__((shared,nocommon));
extern unsigned __nvptx_uni[32] __attribute__((shared,nocommon));
__attribute__((kernel)) void __do_global_ctors__entry__mgomp (void *);
void
__do_global_ctors__entry__mgomp (void *nvptx_stacks_0)
{
__nvptx_stacks[0] = nvptx_stacks_0;
__nvptx_uni[0] = 0;
__static_do_global_ctors ();
}
__attribute__((kernel)) void __do_global_dtors__entry__mgomp (void *);
void
__do_global_dtors__entry__mgomp (void *nvptx_stacks_0)
{
__nvptx_stacks[0] = nvptx_stacks_0;
__nvptx_uni[0] = 0;
__static_do_global_dtors ();
}
# else
/* OpenACC */
__attribute__((kernel)) void __do_global_ctors__entry (void);
void
__do_global_ctors__entry (void)
{
__static_do_global_ctors ();
}
__attribute__((kernel)) void __do_global_dtors__entry (void);
void
__do_global_dtors__entry (void)
{
__static_do_global_dtors ();
}
# endif
/* The following symbol just provides a means for the nvptx-tools 'ld' to
trigger linking in this file. */
int __trigger_gbl_ctors;
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