| /* 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 25 bits used, but they are bits 7..31. */ |
| #define _DL_HWCAP_FIRST 7 |
| #define _DL_HWCAP_COUNT 32 |
| |
| /* These bits influence library search. */ |
| #define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \ |
| + PPC_FEATURE_HAS_DFP) |
| |
| #define _DL_PLATFORMS_COUNT 9 |
| |
| #define _DL_FIRST_PLATFORM 32 |
| /* Mask to filter out platforms. */ |
| #define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \ |
| << _DL_FIRST_PLATFORM) |
| |
| /* Platform bits (relative to _DL_FIRST_PLATFORM). */ |
| #define PPC_PLATFORM_POWER4 0 |
| #define PPC_PLATFORM_PPC970 1 |
| #define PPC_PLATFORM_POWER5 2 |
| #define PPC_PLATFORM_POWER5_PLUS 3 |
| #define PPC_PLATFORM_POWER6 4 |
| #define PPC_PLATFORM_CELL_BE 5 |
| #define PPC_PLATFORM_POWER6X 6 |
| #define PPC_PLATFORM_POWER7 7 |
| #define PPC_PLATFORM_PPCA2 8 |
| |
| 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)[PPC_PLATFORM_POWER4], 5) == 0) |
| { |
| int ret; |
| str += 5; |
| switch (*str) |
| { |
| case '4': |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER4; |
| break; |
| case '5': |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER5; |
| if (str[1] == '+') |
| { |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER5_PLUS; |
| ++str; |
| } |
| break; |
| case '6': |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER6; |
| if (str[1] == 'x') |
| { |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER6X; |
| ++str; |
| } |
| break; |
| case '7': |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER7; |
| break; |
| default: |
| return -1; |
| } |
| if (str[1] == '\0') |
| return ret; |
| } |
| else if (strncmp (str, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC970], |
| 3) == 0) |
| { |
| if (strcmp (str + 3, GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPC970] |
| + 3) == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC970; |
| else if (strcmp (str + 3, |
| GLRO(dl_powerpc_platforms)[PPC_PLATFORM_CELL_BE] + 3) |
| == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_CELL_BE; |
| else if (strcmp (str + 3, |
| GLRO(dl_powerpc_platforms)[PPC_PLATFORM_PPCA2] + 3) |
| == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPCA2; |
| } |
| |
| 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 */ |