mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-12-23 03:53:43 +01:00
aed6c8b994
Fixup commit 39b83981 ("Flush icache with __builtin___clear_cache() in
tests when compiling with GCC") to fix compilation with older GCC
versions that do not provide __builtin___clear_cache().
90 lines
1.7 KiB
ArmAsm
90 lines
1.7 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
|
|
|
|
#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
|