Re: [PATCH v2 RESEND 7/7] Hexagon (linux-user/hexagon): handle breakpoints

[Richard Henderson <richard.henderson@linaro.org>]

On 4/20/23 13:31, Matheus Tavares Bernardino wrote:
> From: Taylor Simpson <tsimpson@quicinc.com>
> 
> This enables LLDB to work with hexagon linux-user mode through the GDB
> remote protocol.
> 
> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
> Signed-off-by: Matheus Tavares Bernardino <quic_mathbern@quicinc.com>
> ---
>   linux-user/hexagon/cpu_loop.c | 10 ++++++++++
>   1 file changed, 10 insertions(+)
> 
> diff --git a/linux-user/hexagon/cpu_loop.c b/linux-user/hexagon/cpu_loop.c
> index b84e25bf71..00c12bbb55 100644
> --- a/linux-user/hexagon/cpu_loop.c
> +++ b/linux-user/hexagon/cpu_loop.c
> @@ -33,6 +33,7 @@ void cpu_loop(CPUHexagonState *env)
>       target_ulong ret;
>   
>       for (;;) {
> +        target_siginfo_t info;
>           cpu_exec_start(cs);
>           trapnr = cpu_exec(cs);
>           cpu_exec_end(cs);
> @@ -63,6 +64,15 @@ void cpu_loop(CPUHexagonState *env)
>           case EXCP_ATOMIC:
>               cpu_exec_step_atomic(cs);
>               break;
> +        case EXCP_DEBUG:
> +            info = (target_siginfo_t) {
> +                .si_signo = TARGET_SIGTRAP,
> +                .si_errno = 0,
> +                .si_code = TARGET_TRAP_BRKPT,
> +                ._sifields._sigfault._addr = 0
> +            };
> +            queue_signal(env, info.si_signo, QEMU_SI_KILL, &info);

Use force_sig_fault.


r~