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/* Processor capability information handling macros. PowerPC version.
Copyright (C) 2005, 2006 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _DL_PROCINFO_H
#define _DL_PROCINFO_H 1
#include <ldsodefs.h>
#include <sysdep.h> /* This defines the PPC_FEATURE_* macros. */
/* There are 20 bits used, but they are bits 12..31. */
#define _DL_HWCAP_FIRST 12
#define _DL_HWCAP_COUNT 32
/* These bits influence library search. */
#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC)
#define _DL_PLATFORMS_COUNT 6
#define _DL_FIRST_PLATFORM 32
/* Mask to filter out platforms. */
#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \
<< _DL_FIRST_PLATFORM)
static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
{
return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST];
}
static inline const char *
__attribute__ ((unused))
_dl_platform_string (int idx)
{
return GLRO(dl_powerpc_platforms)[idx - _DL_FIRST_PLATFORM];
}
static inline int
__attribute__ ((unused))
_dl_string_hwcap (const char *str)
{
for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
if (strcmp (str, _dl_hwcap_string (i)) == 0)
return i;
return -1;
}
static inline int
__attribute__ ((unused, always_inline))
_dl_string_platform (const char *str)
{
if (str == NULL)
return -1;
if (strncmp (str, GLRO(dl_powerpc_platforms)[0], 5) == 0)
{
int ret;
str += 5;
switch (*str)
{
case '4':
ret = _DL_FIRST_PLATFORM + 0;
break;
case '5':
ret = _DL_FIRST_PLATFORM + 2;
if (str[1] == '+')
++ret, ++str;
break;
case '6':
ret = _DL_FIRST_PLATFORM + 4;
break;
default:
return -1;
}
if (str[1] == '\0')
return ret;
}
else if (strncmp (str, GLRO(dl_powerpc_platforms)[1], 3) == 0)
{
if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[1] + 3) == 0)
return _DL_FIRST_PLATFORM + 1;
else if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[5] + 3) == 0)
return _DL_FIRST_PLATFORM + 5;
}
return -1;
}
#ifdef IS_IN_rtld
static inline int
__attribute__ ((unused))
_dl_procinfo (int word)
{
_dl_printf ("AT_HWCAP: ");
for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
if (word & (1 << i))
_dl_printf (" %s", _dl_hwcap_string (i));
_dl_printf ("\n");
return 0;
}
#endif
#endif /* dl-procinfo.h */
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