diff options
Diffstat (limited to 'gcc/config/tilegx/linux.h')
| -rw-r--r-- | gcc/config/tilegx/linux.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/gcc/config/tilegx/linux.h b/gcc/config/tilegx/linux.h index f68b044..8ed3d02 100644 --- a/gcc/config/tilegx/linux.h +++ b/gcc/config/tilegx/linux.h @@ -55,12 +55,23 @@ /* For __clear_cache in libgcc2.c. */ #ifdef IN_LIBGCC2 -#include <arch/icache.h> - /* Use the minimum page size of 4K. Alternatively we can call - getpagesize() but it introduces a libc dependence. */ + getpagesize() but it introduces a libc dependence. + See Linux arch/tile/include/uapi/arch/icache.h for more commentary. */ #undef CLEAR_INSN_CACHE -#define CLEAR_INSN_CACHE(beg, end) invalidate_icache (beg, end - beg, 4096) +#define CLEAR_INSN_CACHE(BEG, END) \ +{ \ + long size = (long) (END) - (long) (BEG); \ + if (size) \ + { \ + const char *p = (const char *) ((unsigned long) (BEG) & -64L); \ + const char *end = p + (size < 4096 ? size : 4096) - 1; \ + __insn_mf (); \ + for (; p <= end; p += 64) \ + __insn_icoh (p); \ + __insn_drain (); \ + } \ +} #else |