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2002-08-22 Steven Munroe <sjmunroe@us.ibm.com>

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* sysdeps/powerpc/elf/libc-start.c
	(__cache_line_size): Declare.
	(__aux_init_cache): New.
	(__libc_start_main): Change type of `auxvec' parameter to
	`ElfW(auxv_t) *'.  Correct walking of aux vector.  Call
	__aux_init_cache.
	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
	(__cache_line_size): Declare.
	(__aux_init_cache): New.
	(DL_PLATFORM_INIT): Define.
	* sysdeps/powerpc/memset.S: Define __cache_line_size and use its
	value to select the correct stride for dcbz.
2002-08-22  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/elf/libc-start.c 
	(__cache_line_size): Declare.
	(__aux_init_cache): New.
	(__libc_start_main): Change type of `auxvec' parameter to
	`ElfW(auxv_t) *'.  Correct walking of aux vector.  Call
	__aux_init_cache.
	* sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c 
	(__cache_line_size): Declare.
	(__aux_init_cache): New.
	(DL_PLATFORM_INIT): Define.
	* sysdeps/powerpc/memset.S: Define __cache_line_size and use its
	value to select the correct stride for dcbz.
This commit is contained in:
Geoff Keating
2002-08-22 19:07:46 +00:00
parent 7a14a672b9
commit b8a5737a49
4 changed files with 192 additions and 11 deletions
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26
sysdeps/unix/sysv/linux/powerpc/dl-sysdep.c
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@ -20,6 +20,32 @@
#include "config.h"
#include "kernel-features.h"
#include <ldsodefs.h>
extern int __cache_line_size;
weak_extern (__cache_line_size)
#define DL_PLATFORM_INIT __aux_init_cache(_dl_auxv)
/* Scan the Aux Vector for the "Data Cache Block Size" entry. If found
verify that the static extern __cache_line_size is defined by checking
for not NULL. If it is defined then assign the cache block size
value to __cache_line_size. */
static inline void
__aux_init_cache (ElfW(auxv_t) *av)
{
for (; av->a_type != AT_NULL; ++av)
switch (av->a_type)
{
case AT_DCACHEBSIZE:
{
int *cls = & __cache_line_size;
if (cls != NULL)
*cls = av->a_un.a_val;
}
break;
}
}
#ifndef __ASSUME_STD_AUXV