You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.1 KiB
80 lines
2.1 KiB
/* Report build ID information for a module. |
|
Copyright (C) 2007, 2008 Red Hat, Inc. |
|
This file is part of elfutils. |
|
|
|
This file is free software; you can redistribute it and/or modify |
|
it under the terms of either |
|
|
|
* the GNU Lesser General Public License as published by the Free |
|
Software Foundation; either version 3 of the License, or (at |
|
your option) any later version |
|
|
|
or |
|
|
|
* the GNU General Public License as published by the Free |
|
Software Foundation; either version 2 of the License, or (at |
|
your option) any later version |
|
|
|
or both in parallel, as here. |
|
|
|
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 copies of the GNU General Public License and |
|
the GNU Lesser General Public License along with this program. If |
|
not, see <http://www.gnu.org/licenses/>. */ |
|
|
|
#include "libdwflP.h" |
|
|
|
// XXX vs report changed module: punting old file |
|
int |
|
dwfl_module_report_build_id (Dwfl_Module *mod, |
|
const unsigned char *bits, size_t len, |
|
GElf_Addr vaddr) |
|
{ |
|
if (mod == NULL) |
|
return -1; |
|
|
|
if (mod->main.elf != NULL) |
|
{ |
|
/* Once we know about a file, we won't take any lies about |
|
its contents. The only permissible call is a no-op. */ |
|
|
|
if ((size_t) mod->build_id_len == len |
|
&& (mod->build_id_vaddr == vaddr || vaddr == 0) |
|
&& !memcmp (bits, mod->build_id_bits, len)) |
|
return 0; |
|
|
|
__libdwfl_seterrno (DWFL_E_ALREADY_ELF); |
|
return -1; |
|
} |
|
|
|
if (vaddr != 0 && (vaddr < mod->low_addr || vaddr + len > mod->high_addr)) |
|
{ |
|
__libdwfl_seterrno (DWFL_E_ADDR_OUTOFRANGE); |
|
return -1; |
|
} |
|
|
|
void *copy = NULL; |
|
if (len > 0) |
|
{ |
|
copy = malloc (len); |
|
if (unlikely (copy == NULL)) |
|
{ |
|
__libdwfl_seterrno (DWFL_E_NOMEM); |
|
return -1; |
|
} |
|
memcpy (copy, bits, len); |
|
} |
|
|
|
free (mod->build_id_bits); |
|
|
|
mod->build_id_bits = copy; |
|
mod->build_id_len = len; |
|
mod->build_id_vaddr = vaddr; |
|
|
|
return 0; |
|
} |
|
INTDEF (dwfl_module_report_build_id)
|
|
|