diff options
Diffstat (limited to 'sysdeps/powerpc/dl-procinfo.h')
| -rw-r--r-- | sysdeps/powerpc/dl-procinfo.h | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/sysdeps/powerpc/dl-procinfo.h b/sysdeps/powerpc/dl-procinfo.h index 568fe19dde..0ffc4f7c63 100644 --- a/sysdeps/powerpc/dl-procinfo.h +++ b/sysdeps/powerpc/dl-procinfo.h @@ -20,11 +20,21 @@ #define _DL_PROCINFO_H 1 #include <ldsodefs.h> -#include <sysdep.h> /* This defines the PPC_FEATURE_* macros. */ +#include <sysdep.h> /* This defines the PPC_FEATURE[2]_* macros. */ -/* There are 25 bits used, but they are bits 7..31. */ +/* There are 25 bits used in AT_HWCAP, but they are bits 7..31. The feature + * definitions started at bit 31 and decremented as new features were added. + */ +#define _DL_HWCAP_LAST 31 #define _DL_HWCAP_FIRST 7 -#define _DL_HWCAP_COUNT 32 + +/* AT_HWCAP2 feature bits similarily started at bit 31 and decremented as new + features were added. HWCAP2 feature bits start at bit 0. */ +#define _DL_HWCAP2_LAST 31 + +/* 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 /* These bits influence library search. */ #define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \ @@ -153,15 +163,37 @@ _dl_string_platform (const char *str) } #ifdef IS_IN_rtld + static inline int __attribute__ ((unused)) -_dl_procinfo (int word) +_dl_procinfo (unsigned int type, unsigned 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)); + switch(type) + { + case AT_HWCAP: + _dl_printf ("AT_HWCAP: "); + + for (int i = _DL_HWCAP_FIRST; 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"); |