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390911beb3
2001-04-10 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> * elf/elf.h (AT_DCACHEBSIZE, AT_ICACHEBSIZE, AT_UCACHEBSIZE, AT_IGNOREPPC): New defines. * sysdeps/generic/dl-sysdep.c (_dl_show_auxv): Print them. * sysdeps/unix/sysv/linux/kernel-features.h (__ASSUME_STD_AUXV): Define for newer powerpc kernels. * sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c: Use the standard DL_FIND_ARG_COMPONENTS if __ASSUME_STD_AUXV is defined.
56 lines
2.3 KiB
C
56 lines
2.3 KiB
C
/* Operating system support for run-time dynamic linker. Linux/PPC version.
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Copyright (C) 1997, 1998, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "config.h"
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#include "kernel-features.h"
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#ifndef __ASSUME_STD_AUXV
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/* The PowerPC's auxiliary argument block gets aligned to a 16-byte
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boundary. This is history and impossible to change compatibly. */
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#define DL_FIND_ARG_COMPONENTS(cookie, argc, argv, envp, auxp) \
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do { \
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char **_tmp; \
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size_t _test; \
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(argc) = *(long int *) cookie; \
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(argv) = (char **) cookie + 1; \
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(envp) = (argv) + (argc) + 1; \
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for (_tmp = (envp); *_tmp; ++_tmp) \
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continue; \
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/* The following '++' is important! */ \
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++_tmp; \
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\
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_test = (size_t)_tmp; \
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_test = (_test + 0xf) & ~0xf; \
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/* Under some circumstances, MkLinux (up to at least DR3a5) \
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omits the padding. To work around this, we make a \
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basic sanity check of the argument vector. Of \
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course, this means that in future, the argument \
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vector will have to be laid out to allow for this \
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test :-(. */ \
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if (((ElfW(auxv_t) *)_test)->a_type <= 0x10) \
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_tmp = (char **)_test; \
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(auxp) = (ElfW(auxv_t) *) _tmp; \
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} while (0)
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#endif
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#include <sysdeps/unix/sysv/linux/dl-sysdep.c>
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