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glibc  2.9
dl-profstub.c
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00001 /* Helper definitions for profiling of shared libraries.
00002    Copyright (C) 1998, 2000, 2002, 2004 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
00005 
00006    The GNU C Library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Lesser General Public
00008    License as published by the Free Software Foundation; either
00009    version 2.1 of the License, or (at your option) any later version.
00010 
00011    The GNU C Library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Lesser General Public License for more details.
00015 
00016    You should have received a copy of the GNU Lesser General Public
00017    License along with the GNU C Library; if not, write to the Free
00018    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00019    02111-1307 USA.  */
00020 
00021 #include <dlfcn.h>
00022 #include <elf.h>
00023 #include <ldsodefs.h>
00024 
00025 /* This is the map for the shared object we profile.  It is defined here
00026    only because we test for this value being NULL or not.  */
00027 
00028 
00029 void
00030 _dl_mcount_wrapper (void *selfpc)
00031 {
00032   GLRO(dl_mcount) ((ElfW(Addr)) RETURN_ADDRESS (0), (ElfW(Addr)) selfpc);
00033 }
00034 
00035 
00036 void
00037 _dl_mcount_wrapper_check (void *selfpc)
00038 {
00039   if (GL(dl_profile_map) != NULL)
00040     GLRO(dl_mcount) ((ElfW(Addr)) RETURN_ADDRESS (0), (ElfW(Addr)) selfpc);
00041 }
00042 libc_hidden_def (_dl_mcount_wrapper_check)