diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/powerpc/dl-procinfo.c | 66 | ||||
| -rw-r--r-- | sysdeps/powerpc/dl-procinfo.h | 75 |
2 files changed, 141 insertions, 0 deletions
diff --git a/sysdeps/powerpc/dl-procinfo.c b/sysdeps/powerpc/dl-procinfo.c new file mode 100644 index 0000000000..7c1ab7bad7 --- /dev/null +++ b/sysdeps/powerpc/dl-procinfo.c @@ -0,0 +1,66 @@ +/* Data for processor capability information. PowerPC version. + Copyright (C) 2005 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. */ + +/* 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_powerpc_cap_flags +#else +PROCINFO_CLASS const char _dl_powerpc_cap_flags[16][10] +#endif +#ifndef PROCINFO_DECL += { + "cell", "power5+", "power5", "power4", + "notb", "efpdouble", "efpsingle", "spe", + "ucache", "4xxmac", "mmu", "fpu", + "altivec", "ppc601", "ppc64", "ppc32", + } +#endif +#if !defined SHARED || defined PROCINFO_DECL +; +#else +, +#endif + +#undef PROCINFO_DECL +#undef PROCINFO_CLASS diff --git a/sysdeps/powerpc/dl-procinfo.h b/sysdeps/powerpc/dl-procinfo.h new file mode 100644 index 0000000000..8edc5e539a --- /dev/null +++ b/sysdeps/powerpc/dl-procinfo.h @@ -0,0 +1,75 @@ +/* Processor capability information handling macros. PowerPC version. + Copyright (C) 2005 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 16 bits used, but they are bits 16..31. */ +#define _DL_HWCAP_FIRST 16 +#define _DL_HWCAP_COUNT 32 + +/* These bits influence library search. */ +#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \ + | PPC_FEATURE_POWER4 \ + | PPC_FEATURE_POWER5 \ + | PPC_FEATURE_POWER5_PLUS \ + | PPC_FEATURE_CELL) + +/* We don't use AT_PLATFORM. */ +#define _DL_HWCAP_PLATFORM 0 +#define _dl_string_platform(str) (-1) + +static inline const char * +__attribute__ ((unused)) +_dl_hwcap_string (int idx) +{ + return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST]; +}; + +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; +}; + +#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 */ |