diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-09 01:00:23 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:42 -1000 |
| commit | 90aa39a1cc4837360889f0e033ca25cc82100308 (patch) | |
| tree | b8f857f456fec4ecd5b5931f41c7b17b52a353eb /target-tricore | |
| parent | 5b053a4a28278bca606eeff7d1c0730df1b047e9 (diff) | |
tcg: Allow goto_tb to any target PC in user mode
In user mode, there's only a static address translation, TBs are always
invalidated properly and direct jumps are reset when mapping change.
Thus the destination address is always valid for direct jumps and
there's no need to restrict it to the pages the TB resides in.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Blue Swirl <blauwirbel@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-tricore')
| -rw-r--r-- | target-tricore/translate.c | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/target-tricore/translate.c b/target-tricore/translate.c index 912bf226be..0237e7bea8 100644 --- a/target-tricore/translate.c +++ b/target-tricore/translate.c @@ -3236,15 +3236,25 @@ static inline void gen_save_pc(target_ulong pc) tcg_gen_movi_tl(cpu_PC, pc); } +static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest) +{ + if (unlikely(ctx->singlestep_enabled)) { + return false; + } + +#ifndef CONFIG_USER_ONLY + return (ctx->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); +#else + return true; +#endif +} + static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) { - TranslationBlock *tb; - tb = ctx->tb; - if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) && - likely(!ctx->singlestep_enabled)) { + if (use_goto_tb(ctx, dest)) { tcg_gen_goto_tb(n); gen_save_pc(dest); - tcg_gen_exit_tb((uintptr_t)tb + n); + tcg_gen_exit_tb((uintptr_t)ctx->tb + n); } else { gen_save_pc(dest); if (ctx->singlestep_enabled) { |