On Fri, Mar 29, 2013 at 9:44 PM, <edgar.igles...@gmail.com> wrote:
> From: "Edgar E. Iglesias" <edgar.igles...@xilinx.com>
>
> Signed-off-by: Edgar E. Iglesias <edgar.igles...@xilinx.com>
> ---
> target-microblaze/translate.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/target-microblaze/translate.c b/target-microblaze/translate.c
> index a74da8e..21a7119 100644
> --- a/target-microblaze/translate.c
> +++ b/target-microblaze/translate.c
> @@ -1317,6 +1317,21 @@ static void dec_br(DisasContext *dc)
> /* Memory barrier. */
> mbar = (dc->ir >> 16) & 31;
> if (mbar == 2 && dc->imm == 4) {
> + /* mbar IMM & 16 decodes to sleep. */
> + if (dc->rd & 16) {
> + TCGv_i32 tmp = tcg_const_i32(EXCP_HLT);
> +
> + LOG_DIS("sleep\n");
> +
> + t_sync_flags(dc);
> + tcg_gen_st_i32(tcg_const_i32(1), cpu_env,
This leaks the result of tcg_const_i32(1).
> + -offsetof(MicroBlazeCPU, env)
> + +offsetof(CPUState, halted));
> + tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc + 4);
> + gen_helper_raise_exception(cpu_env, tmp);
> + tcg_temp_free_i32(tmp);
> + return;
> + }
> LOG_DIS("mbar %d\n", dc->rd);
> /* Break the TB. */
> dc->cpustate_changed = 1;
> --
> 1.7.9.5
>
>
