Re: [PATCH 3/3] target/unicore32: Prefer qemu_semihosting_log_out() over curses

[Laurent Vivier <laurent@vivier.eu>]

Le 03/06/2020 à 14:37, Philippe Mathieu-Daudé a écrit :
> Use the common API for semihosting logging.
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
>  default-configs/unicore32-softmmu.mak |  1 +
>  target/unicore32/helper.c             | 57 +++------------------------
>  2 files changed, 6 insertions(+), 52 deletions(-)
> 
> diff --git a/default-configs/unicore32-softmmu.mak b/default-configs/unicore32-softmmu.mak
> index 0bfce48c6d..899288e3d7 100644
> --- a/default-configs/unicore32-softmmu.mak
> +++ b/default-configs/unicore32-softmmu.mak
> @@ -3,3 +3,4 @@
>  # Boards:
>  #
>  CONFIG_PUV3=y
> +CONFIG_SEMIHOSTING=y
> diff --git a/target/unicore32/helper.c b/target/unicore32/helper.c
> index 00371a7da6..54c26871fe 100644
> --- a/target/unicore32/helper.c
> +++ b/target/unicore32/helper.c
> @@ -14,9 +14,7 @@
>  #include "cpu.h"
>  #include "exec/exec-all.h"
>  #include "exec/helper-proto.h"
> -#ifndef CONFIG_USER_ONLY
> -#include "ui/console.h"
> -#endif
> +#include "hw/semihosting/console.h"
>  
>  #undef DEBUG_UC32
>  
> @@ -161,58 +159,13 @@ uint32_t helper_cp0_get(CPUUniCore32State *env, uint32_t creg, uint32_t cop)
>      return 0;
>  }
>  
> -#ifdef CONFIG_CURSES
> -
> -/* KEY_EVENT is defined in wincon.h and in curses.h. Avoid redefinition. */
> -#undef KEY_EVENT
> -#include <curses.h>
> -#undef KEY_EVENT
> -
> -/*
> - * FIXME:
> - *     1. curses windows will be blank when switching back
> - *     2. backspace is not handled yet
> - */
> -static void putc_on_screen(unsigned char ch)
> +void helper_cp1_putc(target_ulong regval)
>  {
> -    static WINDOW *localwin;
> -    static int init;
> +    const char c = regval;
>  
> -    if (!init) {
> -        /* Assume 80 * 30 screen to minimize the implementation */
> -        localwin = newwin(30, 80, 0, 0);
> -        scrollok(localwin, TRUE);
> -        init = TRUE;
> -    }
> -
> -    if (isprint(ch)) {
> -        wprintw(localwin, "%c", ch);
> -    } else {
> -        switch (ch) {
> -        case '\n':
> -            wprintw(localwin, "%c", ch);
> -            break;
> -        case '\r':
> -            /* If '\r' is put before '\n', the curses window will destroy the
> -             * last print line. And meanwhile, '\n' implifies '\r' inside. */
> -            break;
> -        default: /* Not handled, so just print it hex code */
> -            wprintw(localwin, "-- 0x%x --", ch);
> -        }
> -    }
> -
> -    wrefresh(localwin);
> +    qemu_semihosting_log_out(&c, sizeof(c));
>  }
> -#else
> -#define putc_on_screen(c)               do { } while (0)
> -#endif
> -
> -void helper_cp1_putc(target_ulong x)
> -{
> -    putc_on_screen((unsigned char)x);   /* Output to screen */
> -    DPRINTF("%c", x);                   /* Output to stdout */
> -}
> -#endif
> +#endif /* !CONFIG_USER_ONLY */
>  
>  bool uc32_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
>  {
> 

Applied to my trivial-patches branch.

Thanks,
Laurent