129 lines
3 KiB
C
129 lines
3 KiB
C
/* Global constructor/destructor support
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Copyright (C) 2024-2025 Free Software Foundation, Inc.
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This file is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 3, or (at your option) any
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later version.
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This file is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "auto-target.h"
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#ifdef HAVE_STDLIB_H
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# include <stdlib.h>
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#endif
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#include "gbl-ctors.h"
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extern int atexit (void (*function) (void));
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/* Handler functions ('static', in contrast to the 'gbl-ctors.h'
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prototypes). */
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static void __static_do_global_ctors (void);
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static void
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__static_do_global_ctors (void)
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{
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__SIZE_TYPE__ nptrs = (__SIZE_TYPE__) __CTOR_LIST__[0];
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for (__SIZE_TYPE__ i = nptrs; i >= 1; --i)
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__CTOR_LIST__[i] ();
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}
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static void __static_do_global_dtors (void);
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static void
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__static_do_global_dtors (void)
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{
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func_ptr *p = __DTOR_LIST__;
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++p;
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for (; *p; ++p)
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(*p) ();
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}
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/* For nvptx target configurations, override the 'crt0.c' dummy. */
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extern void __gbl_ctors (void);
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void
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__gbl_ctors (void)
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{
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__static_do_global_ctors ();
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atexit (__static_do_global_dtors);
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}
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/* For nvptx offloading configurations, need '.entry' wrappers. */
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# if defined(__nvptx_softstack__) && defined(__nvptx_unisimt__)
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/* OpenMP */
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/* See 'crt0.c', 'mgomp.c'. */
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extern void *__nvptx_stacks[32] __attribute__((shared,nocommon));
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extern unsigned __nvptx_uni[32] __attribute__((shared,nocommon));
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__attribute__((kernel)) void __do_global_ctors__entry__mgomp (void *);
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void
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__do_global_ctors__entry__mgomp (void *nvptx_stacks_0)
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{
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__nvptx_stacks[0] = nvptx_stacks_0;
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__nvptx_uni[0] = 0;
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__static_do_global_ctors ();
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}
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__attribute__((kernel)) void __do_global_dtors__entry__mgomp (void *);
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void
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__do_global_dtors__entry__mgomp (void *nvptx_stacks_0)
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{
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__nvptx_stacks[0] = nvptx_stacks_0;
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__nvptx_uni[0] = 0;
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__static_do_global_dtors ();
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}
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# else
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/* OpenACC */
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__attribute__((kernel)) void __do_global_ctors__entry (void);
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void
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__do_global_ctors__entry (void)
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{
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__static_do_global_ctors ();
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}
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__attribute__((kernel)) void __do_global_dtors__entry (void);
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void
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__do_global_dtors__entry (void)
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{
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__static_do_global_dtors ();
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}
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# endif
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/* The following symbol just provides a means for the nvptx-tools 'ld' to
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trigger linking in this file. */
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int __trigger_gbl_ctors;
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