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glibc  2.9
dl-fptr.h
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00001 /* Function descriptors. Generic version.
00002    Copyright (C) 1995, 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #ifndef dl_fptr_h
00021 #define dl_fptr_h 1
00022 
00023 /* An FDESC is a function descriptor.  */
00024 
00025 struct fdesc
00026   {
00027     ElfW(Addr) ip;   /* code entry point */
00028     ElfW(Addr) gp;   /* global pointer */
00029   };
00030 
00031 struct fdesc_table
00032   {
00033     struct fdesc_table *next;
00034     unsigned int len;                     /* # of entries in fdesc table */
00035     volatile unsigned int first_unused;   /* index of first available entry */
00036     struct fdesc fdesc[0];
00037   };
00038 
00039 struct link_map;
00040 
00041 extern ElfW(Addr) _dl_boot_fptr_table [];
00042 
00043 extern ElfW(Addr) _dl_make_fptr (struct link_map *, const ElfW(Sym) *,
00044                              ElfW(Addr));
00045 
00046 #endif /* !dl_fptr_h */