diff options
Diffstat (limited to 'libdwfl/dwfl_module_getelf.c')
| -rw-r--r-- | libdwfl/dwfl_module_getelf.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/libdwfl/dwfl_module_getelf.c b/libdwfl/dwfl_module_getelf.c new file mode 100644 index 0000000..b4e4a2b --- /dev/null +++ b/libdwfl/dwfl_module_getelf.c @@ -0,0 +1,88 @@ +/* Find debugging and symbol information for a module in libdwfl. + Copyright (C) 2009-2010 Red Hat, Inc. + This file is part of Red Hat elfutils. + + Red Hat elfutils is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by the + Free Software Foundation; version 2 of the License. + + Red Hat elfutils is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License along + with Red Hat elfutils; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. + + In addition, as a special exception, Red Hat, Inc. gives You the + additional right to link the code of Red Hat elfutils with code licensed + under any Open Source Initiative certified open source license + (http://www.opensource.org/licenses/index.php) which requires the + distribution of source code with any binary distribution and to + distribute linked combinations of the two. Non-GPL Code permitted under + this exception must only link to the code of Red Hat elfutils through + those well defined interfaces identified in the file named EXCEPTION + found in the source code files (the "Approved Interfaces"). The files + of Non-GPL Code may instantiate templates or use macros or inline + functions from the Approved Interfaces without causing the resulting + work to be covered by the GNU General Public License. Only Red Hat, + Inc. may make changes or additions to the list of Approved Interfaces. + Red Hat's grant of this exception is conditioned upon your not adding + any new exceptions. If you wish to add a new Approved Interface or + exception, please contact Red Hat. You must obey the GNU General Public + License in all respects for all of the Red Hat elfutils code and other + code used in conjunction with Red Hat elfutils except the Non-GPL Code + covered by this exception. If you modify this file, you may extend this + exception to your version of the file, but you are not obligated to do + so. If you do not wish to provide this exception without modification, + you must delete this exception statement from your version and license + this file solely under the GPL without exception. + + Red Hat elfutils is an included package of the Open Invention Network. + An included package of the Open Invention Network is a package for which + Open Invention Network licensees cross-license their patents. No patent + license is granted, either expressly or impliedly, by designation as an + included package. Should you wish to participate in the Open Invention + Network licensing program, please visit www.openinventionnetwork.com + <http://www.openinventionnetwork.com>. */ + +#include "libdwflP.h" + +Elf * +dwfl_module_getelf (Dwfl_Module *mod, GElf_Addr *loadbase) +{ + if (mod == NULL) + return NULL; + + __libdwfl_getelf (mod); + if (mod->elferr == DWFL_E_NOERROR) + { + if (mod->e_type == ET_REL && ! mod->main.relocated) + { + /* Before letting them get at the Elf handle, + apply all the relocations we know how to. */ + + mod->main.relocated = true; + if (likely (__libdwfl_module_getebl (mod) == DWFL_E_NOERROR)) + { + (void) __libdwfl_relocate (mod, mod->main.elf, false); + + if (mod->debug.elf == mod->main.elf) + mod->debug.relocated = true; + else if (mod->debug.elf != NULL && ! mod->debug.relocated) + { + mod->debug.relocated = true; + (void) __libdwfl_relocate (mod, mod->debug.elf, false); + } + } + } + + *loadbase = dwfl_adjusted_address (mod, 0); + return mod->main.elf; + } + + __libdwfl_seterrno (mod->elferr); + return NULL; +} +INTDEF (dwfl_module_getelf) |