motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-09 18:44:58 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

Use libgcc __clear_cache to clean icache, when available.

Browse source 
Calling the clear cache syscall directly generates an illegal instruction 
on some (armv4) kernels.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5843 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2008-12-01 02:02:37 +00:00
parent 80fe30ed34
commit 3233f0d463
2 changed files with 13 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
tcg/arm/tcg-target.h
View file

@ -69,8 +69,13 @@ enum {
static inline void flush_icache_range(unsigned long start, unsigned long stop)
{
#if QEMU_GNUC_PREREQ(4, 1)
void __clear_cache(char *beg, char *end);
__clear_cache((char *) start, (char *) stop);
#else
register unsigned long _beg __asm ("a1") = start;
register unsigned long _end __asm ("a2") = stop;
register unsigned long _flg __asm ("a3") = 0;
__asm __volatile__ ("swi 0x9f0002" : : "r" (_beg), "r" (_end), "r" (_flg));
#endif
}