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#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifndef HAVE__BUILTIN___CLEAR_CACHE
#if defined(__ia64__)
.global flush_cache
.proc flush_cache
flush_cache:
.prologue
alloc r2=ar.pfs,2,0,0,0
add r8=31,in1 // round up to 32 byte-boundary
;;
shr.u r8=r8,5 // we flush 32 bytes per iteration
;;
add r8=-1,r8
.save ar.lc, r3
mov r3=ar.lc // save ar.lc
;;
.body
mov ar.lc=r8
;;
.loop: fc in0 // issuable on M0 only
add in0=32,in0
br.cloop.sptk.few .loop
;;
sync.i
;;
srlz.i
;;
mov ar.lc=r3 // restore ar.lc
br.ret.sptk.many rp
.endp flush_cache
#elif defined(__i386__) || defined (__x86_64__)
.globl flush_cache
flush_cache:
ret
#elif defined(__hppa__)
# warning FIX ME!!
.globl flush_cache
flush_cache:
.proc
.callinfo
bv %r0(%rp)
.procend
#elif defined(__powerpc64__)
# warning IMPLEMENT ME FOR PPC64!!
.globl flush_cache
flush_cache:
lwz 11, 0(1) ;
lwz 0, 4(11) ;
mtlr 0 ;
lwz 31, -4(11) ;
mr 1, 11 ;
blr
#elif defined(__powerpc__)
# warning IMPLEMENT ME FOR PPC32!!
.globl flush_cache
flush_cache:
lwz 11, 0(1) ;
lwz 0, 4(11) ;
mtlr 0 ;
lwz 31, -4(11) ;
mr 1, 11 ;
blr
#elif defined(__arm__)
.text
.globl flush_cache
flush_cache:
bx lr
#elif defined(__tilegx__)
.text
.globl flush_cache
flush_cache:
andi r0, r0, -64
1: {
flush r0 ;
addi r0, r0, 64
}
{
bgtz r1, 1b ;
addi r1, r1, -64
}
jrp lr
#else
# error Need flush_cache code for this architecture.
#endif
#if defined ( __linux__) && !defined (__arm__)
/* We do not need executable stack. */
.section .note.GNU-stack,"",@progbits
#endif
#endif
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