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glibc/sysdeps/powerpc/dl-procinfo.c
Adhemerval Zanella 8a995670a8 powerpc: Move AT_HWCAP descriptions to ld diagnostics
The ld.so diagnostics already prints AT_HWCAP values, but only in
hexadecimal.  To avoid duplicating the strings, consolidate the
hwcap_names from cpu-features.h on a new file, dl-hwcap-info.h
(and it also improves the hwcap string description with more
values).

For future AT_HWCAP3/AT_HWCAP4 extensions, it is just a matter
to add them on dl-hwcap-info.c so both ld diagnostics and
tunable filtering will parse the new values.

Checked on powerpc64le-linux-gnu.

Reviewed-by: Peter Bergner <bergner@linux.ibm.com>
2025-03-05 11:22:09 -03:00

84 lines
2.3 KiB
C

/* Data for processor capability information. PowerPC version.
Copyright (C) 2005-2025 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, see
<https://www.gnu.org/licenses/>. */
/* This information must be kept in sync with the _DL_HWCAP_COUNT
definition in procinfo.h.
If anything should be added here check whether the size of each string
is still ok with the given array size.
All the #ifdefs in the definitions are quite irritating but
necessary if we want to avoid duplicating the information. There
are three different modes:
- PROCINFO_DECL is defined. This means we are only interested in
declarations.
- PROCINFO_DECL is not defined:
+ if SHARED is defined the file is included in an array
initializer. The .element = { ... } syntax is needed.
+ if SHARED is not defined a normal array initialization is
needed.
*/
/* The total number of available bits (including those prior to
_DL_HWCAP_FIRST). Some of these bits might not be used. */
#define _DL_HWCAP_COUNT 128
#ifndef PROCINFO_CLASS
# define PROCINFO_CLASS
#endif
#if !IS_IN (ldconfig)
# if !defined PROCINFO_DECL && defined SHARED
._dl_powerpc_cpu_features
# else
PROCINFO_CLASS struct cpu_features _dl_powerpc_cpu_features
# endif
# ifndef PROCINFO_DECL
= { }
# endif
# if !defined SHARED || defined PROCINFO_DECL
;
# else
,
# endif
#endif
#if !IS_IN (ldconfig)
# if !defined PROCINFO_DECL && defined SHARED
._dl_cache_line_size
# else
PROCINFO_CLASS int _dl_cache_line_size
# endif
# ifndef PROCINFO_DECL
= 0
# endif
# if !defined SHARED || defined PROCINFO_DECL
;
# else
,
# endif
#endif
#undef PROCINFO_DECL
#undef PROCINFO_CLASS