mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-21 10:20:06 +00:00
6edbe546d6
I just noticed that the array count for the hwcap flags list in ARM is off by 10, i.e. 37 instead of 27. Following patch fixes this. * sysdeps/unix/sysv/linux/arm/dl-procinfo.c (_dl_arm_cap_flags): Fix array subscript. * sysdeps/unix/sysv/linux/arm/dl-procinfo.h (_DL_HWCAP_COUNT): Fix count.
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* Linux/ARM version of processor capability information handling macros.
|
|
Copyright (C) 2001-2017 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Philip Blundell <philb@gnu.org>, 2001.
|
|
|
|
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
|
|
<http://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 22 bits are allocated in HWCAP. */
|
|
#define _DL_HWCAP_LAST 21
|
|
|
|
/* Low 5 bits are allocated in HWCAP2. */
|
|
#define _DL_HWCAP2_LAST 4
|
|
|
|
/* 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:
|
|
/* This should not happen. */
|
|
return -1;
|
|
}
|
|
_dl_printf ("\n");
|
|
return 0;
|
|
}
|
|
|
|
#define HWCAP_IMPORTANT (HWCAP_ARM_VFP | HWCAP_ARM_NEON)
|
|
|
|
static inline int
|
|
__attribute__ ((unused))
|
|
_dl_string_hwcap (const char *str)
|
|
{
|
|
for (int i = 0; i < _DL_HWCAP_COUNT; i++)
|
|
{
|
|
if (strcmp (str, _dl_hwcap_string (i)) == 0)
|
|
return i;
|
|
}
|
|
return -1;
|
|
};
|
|
|
|
#define _dl_string_platform(str) (-1)
|
|
|
|
#endif /* dl-procinfo.h */
|