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7c6513082b
Starting with commit 1616d034b6
the output was corrupted on some platforms as _dl_procinfo
was called for every auxv entry and on some architectures like s390
all entries were represented as "AT_HWCAP".
This patch is removing the condition and let _dl_procinfo decide if
an entry is printed in a platform specific or generic way.
This patch also adjusts all _dl_procinfo implementations which assumed
that they are only called for AT_HWCAP or AT_HWCAP2. They are now just
returning a non-zero-value for entries which are not handled platform
specifc.
ChangeLog:
* elf/dl-sysdep.c (_dl_show_auxv): Remove condition and always
call _dl_procinfo.
* sysdeps/unix/sysv/linux/s390/dl-procinfo.h (_dl_procinfo):
Ignore types other than AT_HWCAP.
* sysdeps/sparc/dl-procinfo.h (_dl_procinfo): Likewise.
* sysdeps/unix/sysv/linux/i386/dl-procinfo.h (_dl_procinfo):
Likewise.
* sysdeps/powerpc/dl-procinfo.h (_dl_procinfo): Adjust comment
in the case of falling back to generic output mechanism.
* sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_dl_procinfo):
Likewise.
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/* Linux/i386 version of processor capability information handling macros.
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Copyright (C) 1998-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _DL_I386_PROCINFO_H
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#define _DL_I386_PROCINFO_H 1
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#include <sysdeps/x86/dl-procinfo.h>
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#undef _dl_procinfo
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static inline int
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__attribute__ ((unused))
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_dl_procinfo (unsigned int type, unsigned long int word)
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{
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/* This table should match the information from arch/i386/kernel/setup.c
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in the kernel sources. */
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int i;
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/* Fallback to generic output mechanism. */
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if (type != AT_HWCAP)
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return -1;
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_dl_printf ("AT_HWCAP: ");
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for (i = 0; i < 32; ++i)
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if (word & (1 << i))
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_dl_printf (" %s", GLRO(dl_x86_cap_flags)[i]);
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_dl_printf ("\n");
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return 0;
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}
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#endif
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