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Re: [Qemu-riscv] [PATCH V2] RISC-V: fix single stepping over ret and oth

From: Richard Henderson
Subject: Re: [Qemu-riscv] [PATCH V2] RISC-V: fix single stepping over ret and other branching instructions
Date: Mon, 25 Mar 2019 09:59:06 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.5.1

On 3/25/19 4:45 AM, Fabien Chouteau wrote:
> This patch introduces wrappers around the tcg_gen_exit_tb() and
> tcg_gen_lookup_and_goto_ptr() functions that handle single stepping,
> i.e. call gen_exception_debug() when single stepping is enabled.
> Theses functions are then used instead of the originals, bringing single
> stepping handling in places where it was previously ignored such as jalr
> and system branch instructions (ecall, mret, sret, etc.).
> Signed-off-by: Fabien Chouteau <address@hidden>
> ---
>  .../riscv/insn_trans/trans_privileged.inc.c   |  8 ++---
>  target/riscv/insn_trans/trans_rvi.inc.c       |  6 ++--
>  target/riscv/translate.c                      | 30 +++++++++++++++----
>  3 files changed, 32 insertions(+), 12 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


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