| /* Processor capability information handling macros. PowerPC version. |
| Copyright (C) 2005-2018 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _DL_PROCINFO_H |
| #define _DL_PROCINFO_H 1 |
| |
| #include <ldsodefs.h> |
| #include <sysdep.h> /* This defines the PPC_FEATURE[2]_* macros. */ |
| |
| /* The total number of available bits (including those prior to |
| _DL_HWCAP_FIRST). Some of these bits might not be used. */ |
| #define _DL_HWCAP_COUNT 64 |
| |
| /* Features started at bit 31 and decremented as new features were added. */ |
| #define _DL_HWCAP_LAST 31 |
| |
| /* AT_HWCAP2 features started at bit 31 and decremented as new features were |
| added. HWCAP2 feature bits start at bit 0. */ |
| #define _DL_HWCAP2_LAST 31 |
| |
| /* These bits influence library search. */ |
| #define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \ |
| + PPC_FEATURE_HAS_DFP) |
| |
| #define _DL_PLATFORMS_COUNT 15 |
| |
| #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 |
| #define PPC_PLATFORM_PPC405 9 |
| #define PPC_PLATFORM_PPC440 10 |
| #define PPC_PLATFORM_PPC464 11 |
| #define PPC_PLATFORM_PPC476 12 |
| #define PPC_PLATFORM_POWER8 13 |
| #define PPC_PLATFORM_POWER9 14 |
| |
| static inline const char * |
| __attribute__ ((unused)) |
| _dl_hwcap_string (int idx) |
| { |
| return GLRO(dl_powerpc_cap_flags)[idx]; |
| } |
| |
| 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; |
| } |
| |
| static inline int |
| __attribute__ ((unused, always_inline)) |
| _dl_string_platform (const char *str) |
| { |
| if (str == NULL) |
| return -1; |
| |
| if (strncmp (str, "power", 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; |
| case '8': |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER8; |
| break; |
| case '9': |
| ret = _DL_FIRST_PLATFORM + PPC_PLATFORM_POWER9; |
| break; |
| default: |
| return -1; |
| } |
| if (str[1] == '\0') |
| return ret; |
| } |
| else if (strncmp (str, "ppc", 3) == 0) |
| { |
| if (strcmp (str + 3, "970") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC970; |
| else if (strcmp (str + 3, "-cell-be") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_CELL_BE; |
| else if (strcmp (str + 3, "a2") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPCA2; |
| else if (strcmp (str + 3, "405") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC405; |
| else if (strcmp (str + 3, "440") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC440; |
| else if (strcmp (str + 3, "464") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC464; |
| else if (strcmp (str + 3, "476") == 0) |
| return _DL_FIRST_PLATFORM + PPC_PLATFORM_PPC476; |
| } |
| |
| return -1; |
| } |
| |
| #if IS_IN (rtld) |
| 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: "); |
| |
| /* We have to go through them all because the kernel added the |
| AT_HWCAP2 features starting with the high bits. */ |
| 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; |
| } |
| #endif |
| |
| #endif /* dl-procinfo.h */ |