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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* Copyright (C) 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdarg.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <dlfcn.h>
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#include <dlldr.h>
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extern int _dl_numso;
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extern DL_SODATA *_dl_sotable;
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void *
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_dl_sym (void *handle, const char *symbol, void *who)
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{
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void *rt_function;
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if ((int) handle < 0 || (int) handle >= _dl_numso || _dl_sotable == NULL)
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{
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errno = EINVAL;
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return NULL;
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}
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switch (_dl_sotable[(int) handle].type)
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{
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case DL_UNIX_SYSCALL:
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rt_function = (void *) __loadx (DL_UNIX_SYSCALL, (void *) symbol);
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break;
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case DL_GETSYM:
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rt_function = (void *) __loadx (DL_GETSYM, (void *) symbol,
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_dl_sotable[(int) handle].index,
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_dl_sotable[(int) handle].dataorg);
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break;
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default:
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errno = EINVAL;
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return NULL;
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}
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return rt_function;
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}
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