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powerpc: Fix dl-procinfo HWCAP

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HWCAP-related code should had been updated when the 32 bits of HWCAP were
used.  This patch updates the code in dl-procinfo.h to loop through all
the 32 bits in HWCAP and updates _dl_powerpc_cap_flags accordingly.
This commit is contained in:
Carlos Eduardo Seo 2015-12-28 16:36:46 -02:00 committed by Tulio Magno Quites Machado Filho
parent 87da630b22
commit 911569d02d
3 changed files with 13 additions and 8 deletions
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7
ChangeLog
View File

@ -1,3 +1,10 @@
2016-03-08 Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Updated
to reflect the entire 32-bit HWCAP.
* sysdeps/powerpc/dl-procinfo.h: Code cleanup.
(_DL_HWCAP_FIRST): Removed. Replaced by 0 accordingly.
2016-03-08 H.J. Lu <hongjiu.lu@intel.com>
[BZ #19783]

5
sysdeps/powerpc/dl-procinfo.c
View File

@ -45,11 +45,12 @@
#if !defined PROCINFO_DECL && defined SHARED
._dl_powerpc_cap_flags
#else
PROCINFO_CLASS const char _dl_powerpc_cap_flags[60][10]
PROCINFO_CLASS const char _dl_powerpc_cap_flags[64][10]
#endif
#ifndef PROCINFO_DECL
= {
"ppcle", "true_le", "archpmu", "vsx",
"ppcle", "true_le", "", "",
"", "", "archpmu", "vsx",
"arch_2_06", "power6x", "dfp", "pa6t",
"arch_2_05", "ic_snoop", "smt", "booke",
"cellbe", "power5+", "power5", "power4",

9
sysdeps/powerpc/dl-procinfo.h
View File

@ -22,9 +22,6 @@
#include <ldsodefs.h>
#include <sysdep.h> /* This defines the PPC_FEATURE[2]_* macros. */
/* There are 28 bits used, but they are bits 4..31. */
#define _DL_HWCAP_FIRST 4
/* 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
@ -68,7 +65,7 @@ static inline const char *
__attribute__ ((unused))
_dl_hwcap_string (int idx)
{
return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST];
return GLRO(dl_powerpc_cap_flags)[idx];
}
static inline const char *
@ -82,7 +79,7 @@ static inline int
__attribute__ ((unused))
_dl_string_hwcap (const char *str)
{
for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
for (int i = 0; i < _DL_HWCAP_COUNT; ++i)
if (strcmp (str, _dl_hwcap_string (i)) == 0)
return i;
return -1;
@ -180,7 +177,7 @@ _dl_procinfo (unsigned int type, unsigned long int word)
case AT_HWCAP:
_dl_printf ("AT_HWCAP: ");
for (int i = _DL_HWCAP_FIRST; i <= _DL_HWCAP_LAST; ++i)
for (int i = 0; i <= _DL_HWCAP_LAST; ++i)
if (word & (1 << i))
_dl_printf (" %s", _dl_hwcap_string (i));
break;