diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/arm/dl-procinfo.h')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/arm/dl-procinfo.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/arm/dl-procinfo.h b/REORG.TODO/sysdeps/unix/sysv/linux/arm/dl-procinfo.h new file mode 100644 index 0000000000..b6a9d9f6a2 --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/arm/dl-procinfo.h @@ -0,0 +1,93 @@ +/* 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 */ |