73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2004 Free Software Foundation, Inc.
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*
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* GRUB is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <grub/loader.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/err.h>
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#include <grub/kernel.h>
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static grub_err_t (*grub_loader_boot_func) (void);
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static grub_err_t (*grub_loader_unload_func) (void);
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static int grub_loader_loaded;
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int
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grub_loader_is_loaded (void)
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{
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return grub_loader_loaded;
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}
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void
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grub_loader_set (grub_err_t (*boot) (void),
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grub_err_t (*unload) (void))
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{
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if (grub_loader_loaded && grub_loader_unload_func)
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grub_loader_unload_func ();
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grub_loader_boot_func = boot;
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grub_loader_unload_func = unload;
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grub_loader_loaded = 1;
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}
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void
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grub_loader_unset(void)
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{
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if (grub_loader_loaded && grub_loader_unload_func)
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grub_loader_unload_func ();
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grub_loader_boot_func = 0;
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grub_loader_unload_func = 0;
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grub_loader_loaded = 0;
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}
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grub_err_t
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grub_loader_boot (void)
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{
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if (! grub_loader_loaded)
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return grub_error (GRUB_ERR_NO_KERNEL, "no loaded kernel");
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grub_machine_fini ();
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return (grub_loader_boot_func) ();
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}
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