On Tue, Oct 19, 2021 at 11:45 AM Warner Losh <i...@bsdimp.com> wrote:
>
> Add a boiler plate CPU loop that does nothing except return an error for
> all traps.
>
> Signed-off-by: Sean Bruno <sbr...@freebsd.org>
> Signed-off-by: Stacey Son <s...@freebsd.org>
> Signed-off-by: Warner Losh <i...@bsdimp.com>
> ---
> bsd-user/arm/target_arch_cpu.h | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/bsd-user/arm/target_arch_cpu.h b/bsd-user/arm/target_arch_cpu.h
> index c71ec000b3..94c9109c3f 100644
> --- a/bsd-user/arm/target_arch_cpu.h
> +++ b/bsd-user/arm/target_arch_cpu.h
> @@ -35,6 +35,28 @@ static inline void target_cpu_init(CPUARMState *env,
> }
> }
>
> +static inline void target_cpu_loop(CPUARMState *env)
> +{
> + int trapnr;
> + target_siginfo_t info;
> + CPUState *cs = env_cpu(env);
> +
> + for (;;) {
> + cpu_exec_start(cs);
> + trapnr = cpu_exec(cs);
> + cpu_exec_end(cs);
> + process_queued_cpu_work(cs);
> + switch (trapnr) {
> + default:
> + fprintf(stderr, "qemu: unhandled CPU exception 0x%x -
> aborting\n",
> + trapnr);
> + cpu_dump_state(cs, stderr, 0);
> + abort();
> + } /* switch() */
> + process_pending_signals(env);
> + } /* for (;;) */
> +}
> +
> static inline void target_cpu_clone_regs(CPUARMState *env, target_ulong
> newsp)
> {
> if (newsp) {
> --
> 2.32.0
>
Reviewed-by: Kyle Evans <kev...@freebsd.org>
