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/* Recover relocatibility for addresses computed from debug information.
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Copyright (C) 2005, 2006 Red Hat, Inc.
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This file is part of Red Hat elfutils.
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Red Hat elfutils 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 the
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Free Software Foundation; version 2 of the License.
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Red Hat elfutils is distributed in the hope that it will be useful, but
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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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General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with Red Hat elfutils; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
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In addition, as a special exception, Red Hat, Inc. gives You the
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additional right to link the code of Red Hat elfutils with code licensed
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under any Open Source Initiative certified open source license
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(http://www.opensource.org/licenses/index.php) which requires the
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distribution of source code with any binary distribution and to
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distribute linked combinations of the two. Non-GPL Code permitted under
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this exception must only link to the code of Red Hat elfutils through
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those well defined interfaces identified in the file named EXCEPTION
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found in the source code files (the "Approved Interfaces"). The files
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of Non-GPL Code may instantiate templates or use macros or inline
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functions from the Approved Interfaces without causing the resulting
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work to be covered by the GNU General Public License. Only Red Hat,
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Inc. may make changes or additions to the list of Approved Interfaces.
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Red Hat's grant of this exception is conditioned upon your not adding
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any new exceptions. If you wish to add a new Approved Interface or
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exception, please contact Red Hat. You must obey the GNU General Public
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License in all respects for all of the Red Hat elfutils code and other
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code used in conjunction with Red Hat elfutils except the Non-GPL Code
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covered by this exception. If you modify this file, you may extend this
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exception to your version of the file, but you are not obligated to do
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so. If you do not wish to provide this exception without modification,
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you must delete this exception statement from your version and license
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this file solely under the GPL without exception.
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Red Hat elfutils is an included package of the Open Invention Network.
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An included package of the Open Invention Network is a package for which
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Open Invention Network licensees cross-license their patents. No patent
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license is granted, either expressly or impliedly, by designation as an
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included package. Should you wish to participate in the Open Invention
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Network licensing program, please visit www.openinventionnetwork.com
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<http://www.openinventionnetwork.com>. */
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/* Since dwfl_report_elf lays out the sections already, this will only be
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called when the section headers of the debuginfo file are being
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consulted instead. With binutils strip-to-debug, the symbol table
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is in the debuginfo file and relocation looks there. */
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dwfl_offline_section_address (Dwfl_Module *mod,
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void **userdata __attribute__ ((unused)),
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const char *modname __attribute__ ((unused)),
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Dwarf_Addr base __attribute__ ((unused)),
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const char *secname __attribute__ ((unused)),
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const GElf_Shdr *shdr __attribute__ ((unused)),
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assert (mod->symfile != &mod->main);
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GElf_Shdr *main_shdr = gelf_getshdr (elf_getscn (mod->main.elf, shndx),
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if (unlikely (main_shdr == NULL))
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assert (shdr->sh_addr == 0);
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assert (shdr->sh_flags & SHF_ALLOC);
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assert (main_shdr->sh_addr != 0);
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assert (main_shdr->sh_flags == shdr->sh_flags);
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*addr = main_shdr->sh_addr;
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INTDEF (dwfl_offline_section_address)
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dwfl_report_offline (Dwfl *dwfl, const char *name,
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const char *file_name, int fd)
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Dwfl_Module *mod = INTUSE(dwfl_report_elf) (dwfl, name, file_name, fd,
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dwfl->offline_next_address);
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/* If this is an ET_EXEC file with fixed addresses, the address range
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it consumed may or may not intersect with the arbitrary range we
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will use for relocatable modules. Make sure we always use a free
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range for the offline allocations. If this module did use
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offline_next_address, it may have rounded it up for the module's
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alignment requirements. */
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if ((dwfl->offline_next_address >= mod->low_addr
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|| mod->low_addr - dwfl->offline_next_address < OFFLINE_REDZONE)
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&& dwfl->offline_next_address < mod->high_addr + OFFLINE_REDZONE)
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dwfl->offline_next_address = mod->high_addr + OFFLINE_REDZONE;
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/* Don't keep the file descriptor around. */
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if (mod->main.fd != -1 && elf_cntl (mod->main.elf, ELF_C_FDREAD) == 0)
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close (mod->main.fd);
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INTDEF (dwfl_report_offline)
added
removed
libdwfl/offline.c
