mirror of
https://sourceware.org/git/glibc.git
synced 2025-01-11 20:00:07 +00:00
8ebe9c0b38
Linux 6.2 adds six new Arm HWCAP values and two new HWCAP2 values; add them to glibc's Arm bits/hwcap.h, with corresponding dl-procinfo.c and dl-procinfo.h updates. Tested with build-many-glibcs.py for arm-linux-gnueabi.
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
/* Linux/ARM version of processor capability information handling macros.
|
|
Copyright (C) 2001-2023 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/>. */
|
|
|
|
#ifndef _DL_PROCINFO_H
|
|
#define _DL_PROCINFO_H 1
|
|
|
|
#include <ldsodefs.h>
|
|
#include <sysdep.h>
|
|
|
|
#define _DL_HWCAP_COUNT 27
|
|
|
|
/* Low 28 bits are allocated in HWCAP. */
|
|
#define _DL_HWCAP_LAST 27
|
|
|
|
/* Low 7 bits are allocated in HWCAP2. */
|
|
#define _DL_HWCAP2_LAST 6
|
|
|
|
/* The kernel provides platform data but it is not interesting. */
|
|
#define _DL_HWCAP_PLATFORM 0
|
|
|
|
|
|
static inline const char *
|
|
__attribute__ ((unused))
|
|
_dl_hwcap_string (int idx)
|
|
{
|
|
return GLRO(dl_arm_cap_flags)[idx];
|
|
};
|
|
|
|
static inline int
|
|
__attribute__ ((unused))
|
|
_dl_procinfo (unsigned int type, unsigned long int word)
|
|
{
|
|
switch(type)
|
|
{
|
|
case AT_HWCAP:
|
|
_dl_printf ("AT_HWCAP: ");
|
|
|
|
for (int i = 0; i <= _DL_HWCAP_LAST; ++i)
|
|
if (word & (1 << i))
|
|
_dl_printf (" %s", _dl_hwcap_string (i));
|
|
break;
|
|
case AT_HWCAP2:
|
|
{
|
|
unsigned int offset = _DL_HWCAP_LAST + 1;
|
|
|
|
_dl_printf ("AT_HWCAP2: ");
|
|
|
|
for (int i = 0; i <= _DL_HWCAP2_LAST; ++i)
|
|
if (word & (1 << i))
|
|
_dl_printf (" %s", _dl_hwcap_string (offset + i));
|
|
break;
|
|
}
|
|
default:
|
|
/* Fallback to generic output mechanism. */
|
|
return -1;
|
|
}
|
|
_dl_printf ("\n");
|
|
return 0;
|
|
}
|
|
|
|
#define HWCAP_IMPORTANT (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
|
|
|
|
#define _dl_string_platform(str) (-1)
|
|
|
|
#endif /* dl-procinfo.h */
|