Files
intel-linux-sgx/sdk/cpprt/linux/libunwind/tests/flush-cache.S
Li, Xun c505e6129a Linux 2.6 Open Source Gold Release
Added support for Reproducible Enclave Build using Docker file.
Added support for Intel AVX-512 instructions and Intel SHA Extensions New Instructions (SHA-NI) in trusted libraries.
Support both EPID and ECDSA based quote for quoting related interfaces in sgx_uae_service library.
Updated key exchange library to support both EPID and ECDSA based remote attestation.
Support new interface to check platform information blob from remote attestation response message.
Fixed bugs.

Signed-off-by: Li, Xun <xun.li@intel.com>
2019-07-05 14:12:24 +08:00

105 lines
2.0 KiB
ArmAsm

#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