diff options
Diffstat (limited to 'sysdeps/s390')
| -rw-r--r-- | sysdeps/s390/dl-procinfo.c | 80 | ||||
| -rw-r--r-- | sysdeps/s390/dl-procinfo.h | 99 |
2 files changed, 179 insertions, 0 deletions
diff --git a/sysdeps/s390/dl-procinfo.c b/sysdeps/s390/dl-procinfo.c new file mode 100644 index 0000000000..32c6aef951 --- /dev/null +++ b/sysdeps/s390/dl-procinfo.c @@ -0,0 +1,80 @@ +/* Data for s390 version of processor capability information. + Copyright (C) 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006. + + 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. */ + +/* This information must be kept in sync with the _DL_HWCAP_COUNT and + _DL_PLATFORM_COUNT definitions in procinfo.h. + + If anything should be added here check whether the size of each string + is still ok with the given array size. + + All the #ifdefs in the definitions are quite irritating but + necessary if we want to avoid duplicating the information. There + are three different modes: + + - PROCINFO_DECL is defined. This means we are only interested in + declarations. + + - PROCINFO_DECL is not defined: + + + if SHARED is defined the file is included in an array + initializer. The .element = { ... } syntax is needed. + + + if SHARED is not defined a normal array initialization is + needed. + */ + +#ifndef PROCINFO_CLASS +# define PROCINFO_CLASS +#endif + +#if !defined PROCINFO_DECL && defined SHARED + ._dl_s390_cap_flags +#else +PROCINFO_CLASS const char _dl_s390_cap_flags[7][6] +#endif +#ifndef PROCINFO_DECL += { + "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp" + } +#endif +#if !defined SHARED || defined PROCINFO_DECL +; +#else +, +#endif + +#if !defined PROCINFO_DECL && defined SHARED + ._dl_s390_platforms +#else +PROCINFO_CLASS const char _dl_s390_platforms[4][7] +#endif +#ifndef PROCINFO_DECL += { + "g5", "z900", "z990", "z9-109" + } +#endif +#if !defined SHARED || defined PROCINFO_DECL +; +#else +, +#endif + +#undef PROCINFO_DECL +#undef PROCINFO_CLASS diff --git a/sysdeps/s390/dl-procinfo.h b/sysdeps/s390/dl-procinfo.h new file mode 100644 index 0000000000..178d7cc017 --- /dev/null +++ b/sysdeps/s390/dl-procinfo.h @@ -0,0 +1,99 @@ +/* s390 version of processor capability information handling macros. + Copyright (C) 2006 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006. + + 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> + +#define _DL_HWCAP_COUNT 7 + +#define _DL_PLATFORMS_COUNT 4 + +/* The kernel provides up to 32 capability bits with elf_hwcap. */ +#define _DL_FIRST_PLATFORM 32 +/* Mask to filter out platforms. */ +#define _DL_HWCAP_PLATFORM (((1ULL << _DL_PLATFORMS_COUNT) - 1) \ + << _DL_FIRST_PLATFORM) + +/* Hardware capablity bit numbers are derived directly from the + facility indications as stored by the "store facility list" (STFL) + instruction. */ + +enum +{ + HWCAP_S390_ESAN3 = 1 << 0, + HWCAP_S390_ZARCH = 1 << 1, + HWCAP_S390_STFLE = 1 << 2, + HWCAP_S390_MSA = 1 << 3, + HWCAP_S390_LDISP = 1 << 4, + HWCAP_S390_EIMM = 1 << 5, + HWCAP_S390_DFP = 1 << 6, +}; + +#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \ + | HWCAP_S390_EIMM | HWCAP_S390_DFP) + +/* We cannot provide a general printing function. */ +#define _dl_procinfo(word) -1 + +static inline const char * +__attribute__ ((unused)) +_dl_hwcap_string (int idx) +{ + return GLRO(dl_s390_cap_flags)[idx]; +}; + +static inline const char * +__attribute__ ((unused)) +_dl_platform_string (int idx) +{ + return GLRO(dl_s390_platforms)[idx - _DL_FIRST_PLATFORM]; +}; + +static inline int +__attribute__ ((unused, always_inline)) +_dl_string_hwcap (const char *str) +{ + int i; + + for (i = 0; i < _DL_HWCAP_COUNT; i++) + { + if (strcmp (str, GLRO(dl_s390_cap_flags)[i]) == 0) + return i; + } + return -1; +}; + +static inline int +__attribute__ ((unused, always_inline)) +_dl_string_platform (const char *str) +{ + int i; + + if (str != NULL) + for (i = 0; i < _DL_PLATFORMS_COUNT; ++i) + { + if (strcmp (str, GLRO(dl_s390_platforms)[i]) == 0) + return _DL_FIRST_PLATFORM + i; + } + return -1; +}; + +#endif /* dl-procinfo.h */ |