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https://github.com/espressif/binutils-gdb.git
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* cpu.h (m32c_opcode_pc): New. (in_gdb): New. * gdb-if.c (sim_open): Add Timer A support. Support unbuffered console. * int.c (trigger_interrupt): Manage the U flag properly. (trigger_based_interrupt): Likewise. (trigger_fixed_interrupt): New. (trigger_peripheral_interrupt): New. * int.h (trigger_peripheral_interrupt): New. * m32c.opc: Use m32c_opcode_pc throughout, as needed. (decode_m32c): Detect jump-to-zero with traceback. (BRK): Try to do the right thing, keeping track of whether we're in gdb or not, and if the user has provided a handler or not. (GBRK): Alternate break opcode for gdb, in case the user's app needs to use BRK for itself. (BRK2): Implement. * main.c: Add Timer A support. Support TCP-based console. (setup_tcp_console): New. (main): Add Timer A support. Support TCP-based console. * mem.c: Add Timer A support. Support TCP-based console. (mem_ptr): Enhance NULL pointer detection. (stdin_ready): New. (m32c_sim_restore_console): New. (mem_get_byte): Check for console input ready. (update_timer_a): New. * r8c.opc (SSTR): Use r0l, not r0h. (REIT): Fix return frame logic. * reg.c (print_flags): New. (trace_register_changes): Use it. (m32c_dump_all_registers): New. * timer_a.h: New. * load.c: Fix indentation. * trace.c: Fix indentation. * trace.h: Fix indentation.
211 lines
4.2 KiB
C
211 lines
4.2 KiB
C
/* main.c --- main function for stand-alone M32C simulator.
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Copyright (C) 2005, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <assert.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include "bfd.h"
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#include "cpu.h"
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#include "mem.h"
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#include "misc.h"
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#include "load.h"
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#include "trace.h"
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#ifdef TIMER_A
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#include "int.h"
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#include "timer_a.h"
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#endif
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extern int m32c_console_ofd;
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extern int m32c_console_ifd;
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int m32c_disassemble = 0;
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static unsigned int cycles = 0;
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static void
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done (int exit_code)
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{
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if (verbose)
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{
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stack_heap_stats ();
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mem_usage_stats ();
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printf ("insns: %14s\n", comma (cycles));
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}
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exit (exit_code);
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}
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static void
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setup_tcp_console (char *portname)
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{
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int port = atoi (portname);
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struct sockaddr_in address;
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int isocket;
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socklen_t as;
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unsigned char *a;
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if (port < 1024)
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{
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printf ("invalid port number %d\n", port);
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exit (1);
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}
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printf ("waiting for tcp console on port %d\n", port);
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memset (&address, 0, sizeof (address));
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address.sin_family = AF_INET;
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address.sin_port = htons (port);
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isocket = socket (AF_INET, SOCK_STREAM, 0);
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if (isocket < 0)
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{
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perror ("socket");
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exit (1);
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}
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if (bind (isocket, (struct sockaddr *) &address, sizeof (address)))
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{
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perror ("bind");
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exit (1);
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}
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listen (isocket, 2);
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printf ("waiting for connection...\n");
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as = sizeof (address);
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m32c_console_ifd = accept (isocket, (struct sockaddr *) &address, &as);
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if (m32c_console_ifd == -1)
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{
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perror ("accept");
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exit (1);
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}
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a = (unsigned char *) (&address.sin_addr.s_addr);
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printf ("connection from %d.%d.%d.%d\n", a[0], a[1], a[2], a[3]);
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m32c_console_ofd = m32c_console_ifd;
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}
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int
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main (int argc, char **argv)
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{
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int o;
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int save_trace;
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bfd *prog;
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char *console_port_s = 0;
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setbuf (stdout, 0);
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in_gdb = 0;
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while ((o = getopt (argc, argv, "tc:vdm:")) != -1)
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switch (o)
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{
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case 't':
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trace++;
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break;
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case 'c':
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console_port_s = optarg;
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break;
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case 'v':
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verbose++;
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break;
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case 'd':
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m32c_disassemble++;
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break;
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case 'm':
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if (strcmp (optarg, "r8c") == 0 || strcmp (optarg, "m16c") == 0)
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default_machine = bfd_mach_m16c;
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else if (strcmp (optarg, "m32cm") == 0
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|| strcmp (optarg, "m32c") == 0)
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default_machine = bfd_mach_m32c;
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else
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{
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fprintf (stderr, "Invalid machine: %s\n", optarg);
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exit (1);
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}
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break;
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case '?':
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fprintf (stderr,
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"usage: run [-v] [-t] [-d] [-m r8c|m16c|m32cm|m32c]"
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" program\n");
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exit (1);
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}
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prog = bfd_openr (argv[optind], 0);
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if (!prog)
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{
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fprintf (stderr, "Can't read %s\n", argv[optind]);
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exit (1);
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}
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if (!bfd_check_format (prog, bfd_object))
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{
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fprintf (stderr, "%s not a m32c program\n", argv[optind]);
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exit (1);
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}
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save_trace = trace;
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trace = 0;
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m32c_load (prog);
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trace = save_trace;
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if (console_port_s)
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setup_tcp_console (console_port_s);
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sim_disasm_init (prog);
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while (1)
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{
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int rc;
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if (trace)
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printf ("\n");
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if (m32c_disassemble)
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sim_disasm_one ();
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enable_counting = verbose;
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cycles++;
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rc = decode_opcode ();
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enable_counting = 0;
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if (M32C_HIT_BREAK (rc))
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done (1);
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else if (M32C_EXITED (rc))
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done (M32C_EXIT_STATUS (rc));
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else
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assert (M32C_STEPPED (rc));
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trace_register_changes ();
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#ifdef TIMER_A
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update_timer_a ();
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#endif
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}
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}
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