diff options
| author | Claudiu Zissulescu <claziss@synopsys.com> | 2018-04-30 15:16:24 +0200 |
|---|---|---|
| committer | Claudiu Zissulescu <claziss@gcc.gnu.org> | 2018-04-30 15:16:24 +0200 |
| commit | 6fe3b9fdd591ea8c5590c87bb5aecd922ada6072 (patch) | |
| tree | 1acc205e28c49df026350216419425c894c681fa | |
| parent | e0be3321b908443c46b69c888c53b3fddc4cf797 (diff) | |
| download | gcc-6fe3b9fdd591ea8c5590c87bb5aecd922ada6072.zip gcc-6fe3b9fdd591ea8c5590c87bb5aecd922ada6072.tar.gz gcc-6fe3b9fdd591ea8c5590c87bb5aecd922ada6072.tar.bz2 | |
[ARC] Clear the instruction cache using syscalls.
Clear the instruction cache from `beg' to `end'. This makes an inline
system call to SYS_cacheflush.
gcc/
2017-03-28 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/linux.h (CLEAR_INSN_CACHE): Define.
From-SVN: r259764
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/config/arc/linux.h | 14 |
2 files changed, 18 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e2afb1f..4560dd8 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2018-04-30 Claudiu Zissulescu <claziss@synopsys.com> + * config/arc/linux.h (CLEAR_INSN_CACHE): Define. + +2018-04-30 Claudiu Zissulescu <claziss@synopsys.com> + * config/arc/arc-protos.h (prepare_extend_operands): Remove. (small_data_pattern): Likewise. (arc_rewrite_small_data): Likewise. diff --git a/gcc/config/arc/linux.h b/gcc/config/arc/linux.h index 4e87dfe..96d548e 100644 --- a/gcc/config/arc/linux.h +++ b/gcc/config/arc/linux.h @@ -109,3 +109,17 @@ along with GCC; see the file COPYING3. If not see /* Build attribute: procedure call standard. */ #undef ATTRIBUTE_PCS #define ATTRIBUTE_PCS 3 + +/* Clear the instruction cache from `beg' to `end'. This makes an + inline system call to SYS_cacheflush. */ +#undef CLEAR_INSN_CACHE +#define CLEAR_INSN_CACHE(beg, end) \ +{ \ + register unsigned long _beg __asm ("r0") = (unsigned long) (beg); \ + register unsigned long _end __asm ("r1") = (unsigned long) (end); \ + register unsigned long _xtr __asm ("r2") = 0; \ + register unsigned long _scno __asm ("r8") = 244; \ + __asm __volatile ("trap_s 0 ; sys_cache_sync" \ + : "=r" (_beg) \ + : "0" (_beg), "r" (_end), "r" (_xtr), "r" (_scno)); \ +} |