source: mainline/uspace/app/msim/arch_helenos/misc.c@ 6efb4d2

/*
 * Copyright (c) 2012 Vojtech Horky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup msim
 * @{
 */
/** @file HelenOS specific functions for MSIM simulator.
 */
#include "../../io/input.h"
#include "../../io/output.h"
#include "../../device/dprinter.h"
#include "../../debug/gdb.h"
#include "../../cmd.h"
#include "../../fault.h"
#include "../../device/machine.h"
#include "helenos.h"
#include <str.h>
#include <malloc.h>
#include <ctype.h>
#include <stdio.h>

/* Define when the dprinter device shall try to filter
 * out ANSI escape sequences.
 */
#define IGNORE_ANSI_ESCAPE_SEQUENCES
/* Define when you want the ANSI escape sequences to be dumped as
 * hex numbers.
 */
// #define DUMP_ANSI_ESCAPE_SEQUENCES

void interactive_control(void)
{
        tobreak = false;

        if (reenter) {
                mprintf("\n");
                reenter = false;
        }

        stepping = 0;

        while (interactive) {
                char *commline = helenos_input_get_next_command();
                if (commline == NULL) {
                        mprintf("Quit\n");
                        input_back();
                        exit(1);
                }

                /* Check for empty input. */
                if (str_cmp(commline, "") == 0) {
                        interpret("step");
                } else {
                        interpret(commline);
                }

                free(commline);
        }
}

bool gdb_remote_init(void)
{
        return false;
}

void gdb_session(void)
{
}

void gdb_handle_event(gdb_event_t event)
{
}


static void (*original_printer_write)(cpu_t *, device_s *, ptr_t, uint32_t);
static void helenos_printer_write(cpu_t *cpu, device_s *dev, ptr_t addr, uint32_t val)
{
#ifdef IGNORE_ANSI_ESCAPE_SEQUENCES
        static bool inside_ansi_escape = false;
        static bool just_ended_ansi_escape = false;

        if (inside_ansi_escape) {
#ifdef DUMP_ANSI_ESCAPE_SEQUENCES
                fprintf(stderr, "%02" PRIx32 "'%c' ", val, val >= 32 ? val : '?');
#endif
                if (isalpha((int) val)) {
                        just_ended_ansi_escape = true;
                        inside_ansi_escape = false;
#ifdef DUMP_ANSI_ESCAPE_SEQUENCES
                        fprintf(stderr, " [END]\n");
#endif
                }

                return;
        }

        if (val == 0x1B) {
                inside_ansi_escape = true;

                if (!just_ended_ansi_escape) {
#ifdef DUMP_ANSI_ESCAPE_SEQUENCES
                        fprintf(stderr, "\n");
#endif
                }
#ifdef DUMP_ANSI_ESCAPE_SEQUENCES
                fprintf(stderr, "ESC sequence: ");
#endif

                return;
        }

        just_ended_ansi_escape = false;
#endif

        (*original_printer_write)(cpu, dev, addr, val);
}

void helenos_dprinter_init(void)
{
        original_printer_write = dprinter.write;
        dprinter.write = helenos_printer_write;
}