| /* Operating system support for run-time dynamic linker. Linux/PPC version. |
| Copyright (C) 1997, 1998, 2001, 2003, 2006, 2007 |
| Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #include <config.h> |
| #include <kernel-features.h> |
| #include <ldsodefs.h> |
| |
| int __cache_line_size attribute_hidden; |
| |
| /* Scan the Aux Vector for the "Data Cache Block Size" entry. If found |
| verify that the static extern __cache_line_size is defined by checking |
| for not NULL. If it is defined then assign the cache block size |
| value to __cache_line_size. */ |
| #define DL_PLATFORM_AUXV \ |
| case AT_DCACHEBSIZE: \ |
| __cache_line_size = av->a_un.a_val; \ |
| break; |
| |
| #ifndef __ASSUME_STD_AUXV |
| |
| /* The PowerPC's auxiliary argument block gets aligned to a 16-byte |
| boundary. This is history and impossible to change compatibly. */ |
| |
| #define DL_FIND_ARG_COMPONENTS(cookie, argc, argv, envp, auxp) \ |
| do { \ |
| char **_tmp; \ |
| size_t _test; \ |
| (argc) = *(long int *) cookie; \ |
| (argv) = (char **) cookie + 1; \ |
| (envp) = (argv) + (argc) + 1; \ |
| for (_tmp = (envp); *_tmp; ++_tmp) \ |
| continue; \ |
| /* The following '++' is important! */ \ |
| ++_tmp; \ |
| \ |
| _test = (size_t)_tmp; \ |
| _test = (_test + 0xf) & ~0xf; \ |
| /* Under some circumstances, MkLinux (up to at least DR3a5) \ |
| omits the padding. To work around this, we make a \ |
| basic sanity check of the argument vector. Of \ |
| course, this means that in future, the argument \ |
| vector will have to be laid out to allow for this \ |
| test :-(. */ \ |
| if (((ElfW(auxv_t) *)_test)->a_type <= 0x10) \ |
| _tmp = (char **)_test; \ |
| (auxp) = (ElfW(auxv_t) *) _tmp; \ |
| } while (0) |
| #endif |
| |
| #include <sysdeps/unix/sysv/linux/dl-sysdep.c> |