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Re: [PATCH v3 08/13] target/avr: Advance pc in avr_tr_breakpoint_check
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From: |
Philippe Mathieu-Daudé |
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Subject: |
Re: [PATCH v3 08/13] target/avr: Advance pc in avr_tr_breakpoint_check |
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Date: |
Mon, 19 Jul 2021 11:35:04 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 |
On 7/18/21 12:18 AM, Richard Henderson wrote:
> Since 0b00b0c1e05b, tb->size must not be zero.
> Advance pc so that the breakpoint covers the insn at the bp.
>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/489
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> target/avr/translate.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/target/avr/translate.c b/target/avr/translate.c
> index 8237a03c23..d768063d65 100644
> --- a/target/avr/translate.c
> +++ b/target/avr/translate.c
> @@ -2950,6 +2950,7 @@ static bool avr_tr_breakpoint_check(DisasContextBase
> *dcbase, CPUState *cs,
> DisasContext *ctx = container_of(dcbase, DisasContext, base);
>
> gen_breakpoint(ctx);
> + ctx->base.pc_next += 2; /* advance by minimum insn len so tb->size != 0
> */
> return true;
> }
>
>
- [PATCH v3 05/13] accel/tcg: Handle -singlestep in curr_cflags, (continued)
- [PATCH v3 05/13] accel/tcg: Handle -singlestep in curr_cflags, Richard Henderson, 2021/07/17
- [PATCH v3 09/13] target/mips: Reduce mips_tr_breakpoint_check pc advance to 2, Richard Henderson, 2021/07/17
- [PATCH v3 07/13] accel/tcg: Move cflags lookup into tb_find, Richard Henderson, 2021/07/17
- [PATCH v3 02/13] accel/tcg: Move curr_cflags into cpu-exec.c, Richard Henderson, 2021/07/17
- [PATCH v3 06/13] accel/tcg: Use CF_NO_GOTO_{TB, PTR} in cpu_exec_step_atomic, Richard Henderson, 2021/07/17
- [PATCH v3 08/13] target/avr: Advance pc in avr_tr_breakpoint_check, Richard Henderson, 2021/07/17
- [PATCH v3 12/13] accel/tcg: Hoist tb_cflags to a local in translator_loop, Richard Henderson, 2021/07/17
- [PATCH v3 03/13] accel/tcg: Add CF_NO_GOTO_TB and CF_NO_GOTO_PTR, Richard Henderson, 2021/07/17
- [PATCH v3 13/13] accel/tcg: Encode breakpoint info into tb->cflags, Richard Henderson, 2021/07/17
- [PATCH v3 11/13] accel/tcg: Adjust interface of TranslatorOps.breakpoint_check, Richard Henderson, 2021/07/17
- [PATCH v3 10/13] target/riscv: Reduce riscv_tr_breakpoint_check pc advance to 2, Richard Henderson, 2021/07/17