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dpavlin |
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/* |
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* Copyright (C) 2003-2005 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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dpavlin |
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* $Id: debugger.c,v 1.106 2005/06/26 11:36:27 debug Exp $ |
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dpavlin |
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* |
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* Single-step debugger. |
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* |
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* |
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* TODO: |
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* |
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* This entire module is very much non-reentrant. :-/ |
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* |
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* Add more functionality that already exists elsewhere in the emulator. |
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* |
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* More generic expression evaluator (for example + - * / between multiple |
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* terms), including _TAB COMPLETION_ of symbols and register names! |
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* |
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* Nicer looking output of register dumps, floating point registers, |
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* etc. Warn about weird/invalid register contents. |
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* |
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* Ctrl-C doesn't enter the debugger on some OSes (HP-UX?)... |
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* |
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* Many other TODOs. |
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*/ |
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#include <ctype.h> |
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#include <signal.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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dpavlin |
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#include "bintrans.h" |
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dpavlin |
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#include "console.h" |
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#include "cpu.h" |
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#include "device.h" |
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#include "debugger.h" |
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#include "diskimage.h" |
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#include "emul.h" |
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#include "machine.h" |
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#include "memory.h" |
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#include "misc.h" |
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#include "net.h" |
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#include "x11.h" |
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extern int extra_argc; |
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extern char **extra_argv; |
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extern int quiet_mode; |
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/* |
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* Global debugger variables: |
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*/ |
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volatile int single_step = 0; |
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int force_debugger_at_exit = 0; |
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int show_opcode_statistics = 0; |
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int old_instruction_trace = 0; |
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int old_quiet_mode = 0; |
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int old_show_trace_tree = 0; |
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/* |
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* Private (global) debugger variables: |
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*/ |
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static volatile int ctrl_c; |
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static int debugger_n_emuls; |
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static struct emul **debugger_emuls; |
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static struct emul *debugger_emul; |
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static struct machine *debugger_machine; |
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static int exit_debugger; |
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static int n_steps_left_before_interaction = 0; |
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dpavlin |
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#define MAX_CMD_BUFLEN 72 |
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dpavlin |
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#define N_PREVIOUS_CMDS 150 |
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static char *last_cmd[N_PREVIOUS_CMDS]; |
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static int last_cmd_index; |
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dpavlin |
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static char repeat_cmd[MAX_CMD_BUFLEN]; |
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dpavlin |
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#define MAGIC_UNTOUCHED 0x98ca76c2ffcc0011ULL |
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static uint64_t last_dump_addr = MAGIC_UNTOUCHED; |
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static uint64_t last_unasm_addr = MAGIC_UNTOUCHED; |
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/* |
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* debugger_activate(): |
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* |
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* This is a signal handler for CTRL-C. It shouldn't be called directly, |
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* but setup code in emul.c sets the CTRL-C signal handler to use this |
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* function. |
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*/ |
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void debugger_activate(int x) |
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{ |
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ctrl_c = 1; |
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if (single_step) { |
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/* Already in the debugger. Do nothing. */ |
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int i; |
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dpavlin |
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for (i=0; i<MAX_CMD_BUFLEN; i++) |
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dpavlin |
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console_makeavail(MAIN_CONSOLE, '\b'); |
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console_makeavail(MAIN_CONSOLE, ' '); |
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console_makeavail(MAIN_CONSOLE, '\n'); |
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printf("^C"); |
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fflush(stdout); |
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} else { |
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/* Enter the single step debugger. */ |
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single_step = 1; |
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/* Discard any chars in the input queue: */ |
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while (console_charavail(MAIN_CONSOLE)) |
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console_readchar(MAIN_CONSOLE); |
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} |
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/* Clear the repeat-command buffer: */ |
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repeat_cmd[0] = '\0'; |
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/* Reactivate the signal handler: */ |
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signal(SIGINT, debugger_activate); |
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} |
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/* |
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* debugger_parse_name(): |
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* |
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* This function reads a string, and tries to match it to a register name, |
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* a symbol, or treat it as a decimal numeric value. |
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* |
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* Some examples: |
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* |
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* "0x7fff1234" ==> numeric value (hex, in this case) |
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* "pc", "r5", "hi", "t4" ==> register (CPU dependant) |
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* "memcpy+64" ==> symbol (plus offset) |
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* |
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* Register names can be preceeded by "x:" where x is the CPU number. (CPU |
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* 0 is assumed by default.) |
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* |
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* To force detection of different types, a character can be added in front of |
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* the name: "$" for numeric values, "%" for registers, and "@" for symbols. |
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* |
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* Return value is: |
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* |
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* NAME_PARSE_NOMATCH no match |
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* NAME_PARSE_MULTIPLE multiple matches |
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* |
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* or one of these (and then *valuep is read or written, depending on |
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* the writeflag): |
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* |
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* NAME_PARSE_REGISTER a register |
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* NAME_PARSE_NUMBER a hex number |
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* NAME_PARSE_SYMBOL a symbol |
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*/ |
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#define NAME_PARSE_NOMATCH 0 |
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#define NAME_PARSE_MULTIPLE 1 |
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#define NAME_PARSE_REGISTER 2 |
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#define NAME_PARSE_NUMBER 3 |
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#define NAME_PARSE_SYMBOL 4 |
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static int debugger_parse_name(struct machine *m, char *name, int writeflag, |
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uint64_t *valuep) |
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{ |
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int match_register = 0, match_symbol = 0, match_numeric = 0; |
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int skip_register, skip_numeric, skip_symbol; |
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if (m == NULL || name == NULL) { |
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fprintf(stderr, "debugger_parse_name(): NULL ptr\n"); |
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exit(1); |
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} |
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/* Warn about non-signextended values: */ |
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if (writeflag && |
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((*valuep) >> 32) == 0 && (*valuep) & 0x80000000ULL) |
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printf("WARNING: The value is not sign-extended. " |
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"Is this what you intended?\n"); |
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skip_register = name[0] == '$' || name[0] == '@'; |
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skip_numeric = name[0] == '%' || name[0] == '@'; |
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skip_symbol = name[0] == '$' || name[0] == '%'; |
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/* Check for a register match: */ |
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if (!skip_register && strlen(name) >= 1) |
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cpu_register_match(m, name, writeflag, valuep, |
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&match_register); |
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/* Check for a number match: */ |
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if (!skip_numeric && isdigit((int)name[0])) { |
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uint64_t x; |
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x = strtoull(name, NULL, 0); |
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if (writeflag) { |
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printf("You cannot assign like that.\n"); |
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} else |
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*valuep = x; |
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match_numeric = 1; |
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} |
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/* Check for a symbol match: */ |
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if (!skip_symbol) { |
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int res; |
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char *p, *sn; |
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uint64_t newaddr, ofs = 0; |
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sn = malloc(strlen(name) + 1); |
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if (sn == NULL) { |
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fprintf(stderr, "out of memory in debugger\n"); |
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exit(1); |
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} |
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dpavlin |
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strlcpy(sn, name, strlen(name)+1); |
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dpavlin |
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/* Is there a '+' in there? Then treat that as an offset: */ |
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p = strchr(sn, '+'); |
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if (p != NULL) { |
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*p = '\0'; |
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ofs = strtoull(p+1, NULL, 0); |
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} |
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res = get_symbol_addr(&m->symbol_context, sn, &newaddr); |
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if (res) { |
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if (writeflag) { |
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printf("You cannot assign like that.\n"); |
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} else |
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*valuep = newaddr + ofs; |
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match_symbol = 1; |
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} |
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free(sn); |
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} |
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258 |
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if (match_register + match_symbol + match_numeric > 1) |
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return NAME_PARSE_MULTIPLE; |
260 |
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if (match_register) |
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return NAME_PARSE_REGISTER; |
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if (match_numeric) |
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return NAME_PARSE_NUMBER; |
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if (match_symbol) |
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return NAME_PARSE_SYMBOL; |
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268 |
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return NAME_PARSE_NOMATCH; |
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} |
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271 |
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272 |
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/* |
273 |
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* show_breakpoint(): |
274 |
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*/ |
275 |
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static void show_breakpoint(struct machine *m, int i) |
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{ |
277 |
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printf("%3i: 0x%016llx", i, |
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(long long)m->breakpoint_addr[i]); |
279 |
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if (m->breakpoint_string[i] != NULL) |
280 |
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printf(" (%s)", m->breakpoint_string[i]); |
281 |
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if (m->breakpoint_flags[i]) |
282 |
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printf(": flags=0x%x", m->breakpoint_flags[i]); |
283 |
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printf("\n"); |
284 |
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} |
285 |
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286 |
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287 |
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/****************************************************************************/ |
288 |
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289 |
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290 |
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/* |
291 |
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* debugger_cmd_breakpoint(): |
292 |
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* |
293 |
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* TODO: automagic "expansion" for the subcommand names (s => show). |
294 |
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*/ |
295 |
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static void debugger_cmd_breakpoint(struct machine *m, char *cmd_line) |
296 |
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{ |
297 |
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int i, res; |
298 |
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299 |
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while (cmd_line[0] != '\0' && cmd_line[0] == ' ') |
300 |
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cmd_line ++; |
301 |
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302 |
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if (cmd_line[0] == '\0') { |
303 |
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printf("syntax: breakpoint subcmd [args...]\n"); |
304 |
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printf("Available subcmds (and args) are:\n"); |
305 |
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printf(" add addr add a breakpoint for address addr\n"); |
306 |
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printf(" delete x delete breakpoint nr x\n"); |
307 |
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printf(" show show current breakpoints\n"); |
308 |
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return; |
309 |
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} |
310 |
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311 |
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if (strcmp(cmd_line, "show") == 0) { |
312 |
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if (m->n_breakpoints == 0) |
313 |
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printf("No breakpoints set.\n"); |
314 |
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for (i=0; i<m->n_breakpoints; i++) |
315 |
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show_breakpoint(m, i); |
316 |
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return; |
317 |
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} |
318 |
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319 |
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if (strncmp(cmd_line, "delete ", 7) == 0) { |
320 |
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int x = atoi(cmd_line + 7); |
321 |
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322 |
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if (m->n_breakpoints == 0) { |
323 |
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printf("No breakpoints set.\n"); |
324 |
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return; |
325 |
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} |
326 |
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if (x < 0 || x >= m->n_breakpoints) { |
327 |
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printf("Invalid breakpoint nr %i. Use 'breakpoint " |
328 |
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"show' to see the current breakpoints.\n", x); |
329 |
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return; |
330 |
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} |
331 |
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332 |
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free(m->breakpoint_string[x]); |
333 |
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334 |
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for (i=x; i<m->n_breakpoints-1; i++) { |
335 |
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m->breakpoint_addr[i] = m->breakpoint_addr[i+1]; |
336 |
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m->breakpoint_string[i] = m->breakpoint_string[i+1]; |
337 |
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m->breakpoint_flags[i] = m->breakpoint_flags[i+1]; |
338 |
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} |
339 |
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m->n_breakpoints --; |
340 |
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return; |
341 |
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} |
342 |
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343 |
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if (strncmp(cmd_line, "add ", 4) == 0) { |
344 |
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uint64_t tmp; |
345 |
dpavlin |
10 |
size_t breakpoint_buf_len; |
346 |
dpavlin |
2 |
|
347 |
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if (m->n_breakpoints >= MAX_BREAKPOINTS) { |
348 |
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printf("Too many breakpoints. (You need to recompile" |
349 |
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" gxemul to increase this. Max = %i.)\n", |
350 |
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MAX_BREAKPOINTS); |
351 |
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return; |
352 |
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} |
353 |
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354 |
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i = m->n_breakpoints; |
355 |
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356 |
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res = debugger_parse_name(m, cmd_line + 4, 0, &tmp); |
357 |
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if (!res) { |
358 |
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printf("Couldn't parse '%s'\n", cmd_line + 4); |
359 |
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return; |
360 |
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} |
361 |
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|
362 |
dpavlin |
10 |
breakpoint_buf_len = strlen(cmd_line+4) + 1; |
363 |
|
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m->breakpoint_string[i] = malloc(breakpoint_buf_len); |
364 |
dpavlin |
2 |
if (m->breakpoint_string[i] == NULL) { |
365 |
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printf("out of memory in debugger_cmd_breakpoint()\n"); |
366 |
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exit(1); |
367 |
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} |
368 |
dpavlin |
10 |
strlcpy(m->breakpoint_string[i], cmd_line+4, |
369 |
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breakpoint_buf_len); |
370 |
dpavlin |
2 |
m->breakpoint_addr[i] = tmp; |
371 |
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m->breakpoint_flags[i] = 0; |
372 |
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373 |
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m->n_breakpoints ++; |
374 |
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show_breakpoint(m, i); |
375 |
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return; |
376 |
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} |
377 |
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378 |
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printf("Unknown breakpoint subcommand.\n"); |
379 |
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} |
380 |
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381 |
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382 |
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/* |
383 |
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* debugger_cmd_bintrans(): |
384 |
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*/ |
385 |
|
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static void debugger_cmd_bintrans(struct machine *m, char *cmd_line) |
386 |
|
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{ |
387 |
dpavlin |
4 |
int i; |
388 |
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|
389 |
dpavlin |
2 |
if (*cmd_line == '\0') |
390 |
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goto printstate; |
391 |
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392 |
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if (!m->bintrans_enabled_from_start) { |
393 |
|
|
printf("You must have enabled bintrans from the start of the " |
394 |
|
|
"simulation.\nIt is not possible to turn on afterwards.\n"); |
395 |
|
|
return; |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
while (*cmd_line == ' ') |
399 |
|
|
cmd_line++; |
400 |
|
|
|
401 |
|
|
/* Note: len 3 and 4, to include the NUL char. */ |
402 |
dpavlin |
4 |
if (strncasecmp(cmd_line, "on", 3) == 0) { |
403 |
dpavlin |
2 |
m->bintrans_enable = 1; |
404 |
dpavlin |
4 |
for (i=0; i<m->ncpus; i++) |
405 |
|
|
bintrans_restart(m->cpus[i]); |
406 |
|
|
} else if (strncasecmp(cmd_line, "off", 4) == 0) |
407 |
dpavlin |
2 |
m->bintrans_enable = 0; |
408 |
|
|
else |
409 |
|
|
printf("syntax: bintrans [on|off]\n"); |
410 |
|
|
|
411 |
|
|
printstate: |
412 |
|
|
printf("bintrans is now %s%s\n", |
413 |
|
|
m->bintrans_enable? "ENABLED" : "disabled", |
414 |
|
|
m->old_bintrans_enable? " (using the OLD bintrans system)" : ""); |
415 |
|
|
} |
416 |
|
|
|
417 |
|
|
|
418 |
|
|
/* |
419 |
|
|
* debugger_cmd_continue(): |
420 |
|
|
*/ |
421 |
|
|
static void debugger_cmd_continue(struct machine *m, char *cmd_line) |
422 |
|
|
{ |
423 |
|
|
if (*cmd_line) { |
424 |
|
|
printf("syntax: continue\n"); |
425 |
|
|
return; |
426 |
|
|
} |
427 |
|
|
|
428 |
|
|
exit_debugger = 1; |
429 |
|
|
} |
430 |
|
|
|
431 |
|
|
|
432 |
|
|
/* |
433 |
|
|
* debugger_cmd_device(): |
434 |
|
|
*/ |
435 |
|
|
static void debugger_cmd_device(struct machine *m, char *cmd_line) |
436 |
|
|
{ |
437 |
|
|
int i, j; |
438 |
|
|
struct memory *mem; |
439 |
|
|
struct cpu *c; |
440 |
|
|
|
441 |
|
|
if (cmd_line[0] == '\0') |
442 |
|
|
goto return_help; |
443 |
|
|
|
444 |
|
|
if (m->cpus == NULL) { |
445 |
|
|
printf("No cpus (?)\n"); |
446 |
|
|
return; |
447 |
|
|
} |
448 |
|
|
c = m->cpus[m->bootstrap_cpu]; |
449 |
|
|
if (c == NULL) { |
450 |
|
|
printf("m->cpus[m->bootstrap_cpu] = NULL\n"); |
451 |
|
|
return; |
452 |
|
|
} |
453 |
|
|
mem = m->cpus[m->bootstrap_cpu]->mem; |
454 |
|
|
|
455 |
|
|
if (m->cpus == NULL) { |
456 |
|
|
printf("No cpus (?)\n"); |
457 |
|
|
return; |
458 |
|
|
} |
459 |
|
|
c = m->cpus[m->bootstrap_cpu]; |
460 |
|
|
if (c == NULL) { |
461 |
|
|
printf("m->cpus[m->bootstrap_cpu] = NULL\n"); |
462 |
|
|
return; |
463 |
|
|
} |
464 |
|
|
mem = m->cpus[m->bootstrap_cpu]->mem; |
465 |
|
|
|
466 |
|
|
if (strcmp(cmd_line, "all") == 0) { |
467 |
|
|
device_dumplist(); |
468 |
|
|
} else if (strncmp(cmd_line, "add ", 4) == 0) { |
469 |
|
|
device_add(m, cmd_line+4); |
470 |
|
|
} else if (strncmp(cmd_line, "remove ", 7) == 0) { |
471 |
|
|
i = atoi(cmd_line + 7); |
472 |
|
|
if (i==0 && cmd_line[7]!='0') { |
473 |
|
|
printf("Weird device number. Use 'device list'.\n"); |
474 |
|
|
} else |
475 |
|
|
memory_device_remove(m->memory, i); |
476 |
|
|
} else if (strncmp(cmd_line, "state ", 6) == 0) { |
477 |
|
|
i = atoi(cmd_line + 6); |
478 |
|
|
if (i < 0 || i >= mem->n_mmapped_devices) { |
479 |
|
|
printf("No devices with that id.\n"); |
480 |
|
|
return; |
481 |
|
|
} |
482 |
|
|
|
483 |
|
|
if (mem->dev_f_state[i] == NULL) { |
484 |
|
|
printf("No state function has been implemented yet " |
485 |
|
|
"for that device type.\n"); |
486 |
|
|
return; |
487 |
|
|
} |
488 |
|
|
|
489 |
|
|
for (j=0; ; j++) { |
490 |
|
|
int type; |
491 |
|
|
char *name; |
492 |
|
|
void *data; |
493 |
|
|
size_t len; |
494 |
|
|
int res = mem->dev_f_state[i](c, mem, |
495 |
|
|
mem->dev_extra[i], 0, j, &type, &name, &data, &len); |
496 |
|
|
if (!res) |
497 |
|
|
break; |
498 |
|
|
printf("%2i:%30s = (", j, name); |
499 |
|
|
switch (type) { |
500 |
|
|
case DEVICE_STATE_TYPE_INT: |
501 |
|
|
printf("int) %i", *((int *)data)); |
502 |
|
|
break; |
503 |
|
|
default: |
504 |
|
|
printf("unknown)"); |
505 |
|
|
} |
506 |
|
|
printf("\n"); |
507 |
|
|
} |
508 |
|
|
} else if (strcmp(cmd_line, "list") == 0) { |
509 |
|
|
if (mem->n_mmapped_devices == 0) |
510 |
|
|
printf("No memory-mapped devices in this machine.\n"); |
511 |
|
|
|
512 |
|
|
for (i=0; i<mem->n_mmapped_devices; i++) { |
513 |
|
|
printf("%2i: %25s @ 0x%011llx, len = 0x%llx", |
514 |
|
|
i, mem->dev_name[i], |
515 |
|
|
(long long)mem->dev_baseaddr[i], |
516 |
|
|
(long long)mem->dev_length[i]); |
517 |
|
|
if (mem->dev_flags[i]) { |
518 |
|
|
printf(" ("); |
519 |
|
|
if (mem->dev_flags[i] & MEM_BINTRANS_OK) |
520 |
|
|
printf("BINTRANS R"); |
521 |
|
|
if (mem->dev_flags[i] & MEM_BINTRANS_WRITE_OK) |
522 |
|
|
printf("+W"); |
523 |
|
|
printf(")"); |
524 |
|
|
} |
525 |
|
|
printf("\n"); |
526 |
|
|
} |
527 |
|
|
} else |
528 |
|
|
goto return_help; |
529 |
|
|
|
530 |
|
|
return; |
531 |
|
|
|
532 |
|
|
return_help: |
533 |
|
|
printf("syntax: devices cmd [...]\n"); |
534 |
|
|
printf("Available cmds are:\n"); |
535 |
|
|
printf(" add name_and_params add a device to the current " |
536 |
|
|
"machine\n"); |
537 |
|
|
printf(" all list all registered devices\n"); |
538 |
|
|
printf(" list list memory-mapped devices in the" |
539 |
|
|
" current machine\n"); |
540 |
|
|
printf(" remove x remove device nr x from the " |
541 |
|
|
"current machine\n"); |
542 |
|
|
printf(" state x show state of device nr x in" |
543 |
|
|
" the current machine\n"); |
544 |
|
|
} |
545 |
|
|
|
546 |
|
|
|
547 |
|
|
/* |
548 |
|
|
* debugger_cmd_dump(): |
549 |
|
|
* |
550 |
|
|
* Dump emulated memory in hex and ASCII. |
551 |
|
|
* |
552 |
|
|
* syntax: dump [addr [endaddr]] |
553 |
|
|
*/ |
554 |
|
|
static void debugger_cmd_dump(struct machine *m, char *cmd_line) |
555 |
|
|
{ |
556 |
|
|
uint64_t addr, addr_start, addr_end; |
557 |
|
|
struct cpu *c; |
558 |
|
|
struct memory *mem; |
559 |
|
|
char *p = NULL; |
560 |
|
|
int x, r; |
561 |
|
|
|
562 |
|
|
if (cmd_line[0] != '\0') { |
563 |
|
|
uint64_t tmp; |
564 |
|
|
char *tmps = strdup(cmd_line); |
565 |
|
|
|
566 |
|
|
/* addr: */ |
567 |
|
|
p = strchr(tmps, ' '); |
568 |
|
|
if (p != NULL) |
569 |
|
|
*p = '\0'; |
570 |
|
|
r = debugger_parse_name(m, tmps, 0, &tmp); |
571 |
|
|
free(tmps); |
572 |
|
|
|
573 |
|
|
if (r == NAME_PARSE_NOMATCH || r == NAME_PARSE_MULTIPLE) { |
574 |
|
|
printf("Unparsable address: %s\n", cmd_line); |
575 |
|
|
return; |
576 |
|
|
} else { |
577 |
|
|
last_dump_addr = tmp; |
578 |
|
|
} |
579 |
|
|
|
580 |
|
|
p = strchr(cmd_line, ' '); |
581 |
|
|
} |
582 |
|
|
|
583 |
|
|
addr_start = last_dump_addr; |
584 |
|
|
|
585 |
|
|
if (addr_start == MAGIC_UNTOUCHED) { |
586 |
|
|
uint64_t tmp; |
587 |
|
|
int match_register = 0; |
588 |
|
|
cpu_register_match(m, "pc", 0, &tmp, &match_register); |
589 |
|
|
if (match_register) { |
590 |
|
|
addr_start = tmp; |
591 |
|
|
} else { |
592 |
|
|
printf("No starting address.\n"); |
593 |
|
|
return; |
594 |
|
|
} |
595 |
|
|
} |
596 |
|
|
|
597 |
|
|
addr_end = addr_start + 16 * 16; |
598 |
|
|
|
599 |
|
|
/* endaddr: */ |
600 |
|
|
if (p != NULL) { |
601 |
|
|
while (*p == ' ' && *p) |
602 |
|
|
p++; |
603 |
|
|
r = debugger_parse_name(m, p, 0, &addr_end); |
604 |
|
|
if (r == NAME_PARSE_NOMATCH || r == NAME_PARSE_MULTIPLE) { |
605 |
|
|
printf("Unparsable address: %s\n", cmd_line); |
606 |
|
|
return; |
607 |
|
|
} |
608 |
|
|
} |
609 |
|
|
|
610 |
|
|
if (m->cpus == NULL) { |
611 |
|
|
printf("No cpus (?)\n"); |
612 |
|
|
return; |
613 |
|
|
} |
614 |
|
|
c = m->cpus[m->bootstrap_cpu]; |
615 |
|
|
if (c == NULL) { |
616 |
|
|
printf("m->cpus[m->bootstrap_cpu] = NULL\n"); |
617 |
|
|
return; |
618 |
|
|
} |
619 |
|
|
mem = m->cpus[m->bootstrap_cpu]->mem; |
620 |
|
|
|
621 |
|
|
addr = addr_start & ~0xf; |
622 |
|
|
|
623 |
|
|
ctrl_c = 0; |
624 |
|
|
|
625 |
|
|
while (addr < addr_end) { |
626 |
|
|
unsigned char buf[16]; |
627 |
|
|
memset(buf, 0, sizeof(buf)); |
628 |
|
|
r = c->memory_rw(c, mem, addr, &buf[0], sizeof(buf), |
629 |
|
|
MEM_READ, CACHE_NONE | NO_EXCEPTIONS); |
630 |
|
|
|
631 |
|
|
printf("0x%016llx ", (long long)addr); |
632 |
|
|
|
633 |
|
|
if (r == MEMORY_ACCESS_FAILED) |
634 |
|
|
printf("(memory access failed)\n"); |
635 |
|
|
else { |
636 |
|
|
for (x=0; x<16; x++) { |
637 |
|
|
if (addr + x >= addr_start && |
638 |
|
|
addr + x < addr_end) |
639 |
|
|
printf("%02x%s", buf[x], |
640 |
|
|
(x&3)==3? " " : ""); |
641 |
|
|
else |
642 |
|
|
printf(" %s", (x&3)==3? " " : ""); |
643 |
|
|
} |
644 |
|
|
printf(" "); |
645 |
|
|
for (x=0; x<16; x++) { |
646 |
|
|
if (addr + x >= addr_start && |
647 |
|
|
addr + x < addr_end) |
648 |
|
|
printf("%c", (buf[x]>=' ' && |
649 |
|
|
buf[x]<127)? buf[x] : '.'); |
650 |
|
|
else |
651 |
|
|
printf(" "); |
652 |
|
|
} |
653 |
|
|
printf("\n"); |
654 |
|
|
} |
655 |
|
|
|
656 |
|
|
if (ctrl_c) |
657 |
|
|
return; |
658 |
|
|
|
659 |
|
|
addr += sizeof(buf); |
660 |
|
|
} |
661 |
|
|
|
662 |
|
|
last_dump_addr = addr_end; |
663 |
|
|
|
664 |
dpavlin |
10 |
strlcpy(repeat_cmd, "dump", MAX_CMD_BUFLEN); |
665 |
dpavlin |
2 |
} |
666 |
|
|
|
667 |
|
|
|
668 |
|
|
/* |
669 |
|
|
* debugger_cmd_emuls(): |
670 |
|
|
* |
671 |
|
|
* Dump info about all current emuls. |
672 |
|
|
*/ |
673 |
|
|
static void debugger_cmd_emuls(struct machine *m, char *cmd_line) |
674 |
|
|
{ |
675 |
|
|
int i, iadd = 4; |
676 |
|
|
|
677 |
|
|
if (*cmd_line) { |
678 |
|
|
printf("syntax: emuls\n"); |
679 |
|
|
return; |
680 |
|
|
} |
681 |
|
|
|
682 |
|
|
for (i=0; i<debugger_n_emuls; i++) { |
683 |
|
|
struct emul *e = debugger_emuls[i]; |
684 |
|
|
|
685 |
|
|
if (e == NULL) |
686 |
|
|
continue; |
687 |
|
|
|
688 |
|
|
debug("emulation %i: \"%s\"\n", i, |
689 |
|
|
e->name == NULL? "(no name)" : e->name); |
690 |
|
|
debug_indentation(iadd); |
691 |
|
|
|
692 |
|
|
emul_dumpinfo(e); |
693 |
|
|
|
694 |
|
|
debug_indentation(-iadd); |
695 |
|
|
} |
696 |
|
|
} |
697 |
|
|
|
698 |
|
|
|
699 |
|
|
/* |
700 |
|
|
* debugger_cmd_focus(): |
701 |
|
|
* |
702 |
|
|
* Changes focus to specific machine (in a specific emulation). |
703 |
|
|
*/ |
704 |
|
|
static void debugger_cmd_focus(struct machine *m, char *cmd_line) |
705 |
|
|
{ |
706 |
|
|
int x = -1, y = -1; |
707 |
|
|
char *p; |
708 |
|
|
|
709 |
|
|
if (!cmd_line[0]) { |
710 |
|
|
printf("syntax: focus x[,y]\n"); |
711 |
|
|
printf("where x and y are integers as reported by the" |
712 |
|
|
" 'emuls' command\n"); |
713 |
|
|
goto print_current_focus_and_return; |
714 |
|
|
} |
715 |
|
|
|
716 |
|
|
x = atoi(cmd_line); |
717 |
|
|
p = strchr(cmd_line, ','); |
718 |
|
|
if (p == cmd_line) { |
719 |
|
|
printf("No machine number specified?\n"); |
720 |
|
|
printf("syntax: focus x[,y]\n"); |
721 |
|
|
return; |
722 |
|
|
} |
723 |
|
|
|
724 |
|
|
if (p != NULL) |
725 |
|
|
y = atoi(p + 1); |
726 |
|
|
|
727 |
|
|
if (y != -1) { |
728 |
|
|
/* Change emul: */ |
729 |
|
|
if (y < 0 || y >= debugger_n_emuls) { |
730 |
|
|
printf("Invalid emul number: %i\n", y); |
731 |
|
|
return; |
732 |
|
|
} |
733 |
|
|
|
734 |
|
|
debugger_emul = debugger_emuls[y]; |
735 |
|
|
|
736 |
|
|
/* This is just in case the machine change below fails... */ |
737 |
|
|
debugger_machine = debugger_emul->machines[0]; |
738 |
|
|
} |
739 |
|
|
|
740 |
|
|
/* Change machine: */ |
741 |
|
|
if (x < 0 || x >= debugger_emul->n_machines) { |
742 |
|
|
printf("Invalid machine number: %i\n", x); |
743 |
|
|
return; |
744 |
|
|
} |
745 |
|
|
|
746 |
|
|
debugger_machine = debugger_emul->machines[x]; |
747 |
|
|
|
748 |
|
|
print_current_focus_and_return: |
749 |
|
|
printf("current emul: \"%s\"\n", debugger_emul->name == NULL? |
750 |
|
|
"(no name)" : debugger_emul->name); |
751 |
|
|
printf("current machine: \"%s\"\n", debugger_machine->name == NULL? |
752 |
|
|
"(no name)" : debugger_machine->name); |
753 |
|
|
} |
754 |
|
|
|
755 |
|
|
|
756 |
|
|
/* This is defined below. */ |
757 |
|
|
static void debugger_cmd_help(struct machine *m, char *cmd_line); |
758 |
|
|
|
759 |
|
|
|
760 |
|
|
/* |
761 |
|
|
* debugger_cmd_itrace(): |
762 |
|
|
*/ |
763 |
|
|
static void debugger_cmd_itrace(struct machine *m, char *cmd_line) |
764 |
|
|
{ |
765 |
|
|
if (*cmd_line) { |
766 |
|
|
printf("syntax: itrace\n"); |
767 |
|
|
return; |
768 |
|
|
} |
769 |
|
|
|
770 |
|
|
old_instruction_trace = 1 - old_instruction_trace; |
771 |
|
|
printf("instruction_trace = %s\n", old_instruction_trace? "ON":"OFF"); |
772 |
|
|
/* TODO: how to preserve quiet_mode? */ |
773 |
|
|
old_quiet_mode = 0; |
774 |
|
|
printf("quiet_mode = %s\n", old_quiet_mode? "ON" : "OFF"); |
775 |
|
|
} |
776 |
|
|
|
777 |
|
|
|
778 |
|
|
/* |
779 |
|
|
* debugger_cmd_lookup(): |
780 |
|
|
*/ |
781 |
|
|
static void debugger_cmd_lookup(struct machine *m, char *cmd_line) |
782 |
|
|
{ |
783 |
|
|
uint64_t addr; |
784 |
|
|
int res; |
785 |
|
|
char *symbol; |
786 |
|
|
uint64_t offset; |
787 |
|
|
|
788 |
|
|
if (cmd_line[0] == '\0') { |
789 |
|
|
printf("syntax: lookup name|addr\n"); |
790 |
|
|
return; |
791 |
|
|
|
792 |
|
|
} |
793 |
|
|
|
794 |
|
|
/* Addresses never need to be given in decimal form anyway, |
795 |
|
|
so assuming hex here will be ok. */ |
796 |
|
|
addr = strtoull(cmd_line, NULL, 16); |
797 |
|
|
|
798 |
|
|
if (addr == 0) { |
799 |
|
|
uint64_t newaddr; |
800 |
|
|
res = get_symbol_addr(&m->symbol_context, |
801 |
|
|
cmd_line, &newaddr); |
802 |
|
|
if (!res) { |
803 |
|
|
printf("lookup for '%s' failed\n", cmd_line); |
804 |
|
|
return; |
805 |
|
|
} |
806 |
|
|
printf("%s = 0x%016llx\n", cmd_line, (long long)newaddr); |
807 |
|
|
return; |
808 |
|
|
} |
809 |
|
|
|
810 |
|
|
symbol = get_symbol_name(&m->symbol_context, addr, &offset); |
811 |
|
|
|
812 |
|
|
if (symbol != NULL) |
813 |
|
|
printf("0x%016llx = %s\n", (long long)addr, symbol); |
814 |
|
|
else |
815 |
|
|
printf("lookup for '%s' failed\n", cmd_line); |
816 |
|
|
} |
817 |
|
|
|
818 |
|
|
|
819 |
|
|
/* |
820 |
|
|
* debugger_cmd_machine(): |
821 |
|
|
* |
822 |
|
|
* Dump info about the currently focused machine. |
823 |
|
|
*/ |
824 |
|
|
static void debugger_cmd_machine(struct machine *m, char *cmd_line) |
825 |
|
|
{ |
826 |
|
|
int iadd = 4; |
827 |
|
|
|
828 |
|
|
if (*cmd_line) { |
829 |
|
|
printf("syntax: machine\n"); |
830 |
|
|
return; |
831 |
|
|
} |
832 |
|
|
|
833 |
|
|
debug("machine \"%s\":\n", m->name); |
834 |
|
|
debug_indentation(iadd); |
835 |
|
|
machine_dumpinfo(m); |
836 |
|
|
debug_indentation(-iadd); |
837 |
|
|
} |
838 |
|
|
|
839 |
|
|
|
840 |
|
|
/* |
841 |
|
|
* debugger_cmd_opcodestats(): |
842 |
|
|
*/ |
843 |
|
|
static void debugger_cmd_opcodestats(struct machine *m, char *cmd_line) |
844 |
|
|
{ |
845 |
|
|
if (*cmd_line) { |
846 |
|
|
printf("syntax: opcodestats\n"); |
847 |
|
|
return; |
848 |
|
|
} |
849 |
|
|
|
850 |
|
|
if (!show_opcode_statistics) { |
851 |
|
|
printf("You need to start the emulator " |
852 |
|
|
"with -s, if you want to gather statistics.\n"); |
853 |
|
|
} else |
854 |
|
|
cpu_show_full_statistics(m); |
855 |
|
|
} |
856 |
|
|
|
857 |
|
|
|
858 |
|
|
/* |
859 |
|
|
* debugger_cmd_pause(): |
860 |
|
|
*/ |
861 |
|
|
static void debugger_cmd_pause(struct machine *m, char *cmd_line) |
862 |
|
|
{ |
863 |
|
|
int cpuid = -1; |
864 |
|
|
|
865 |
|
|
if (cmd_line[0] != '\0') |
866 |
|
|
cpuid = atoi(cmd_line); |
867 |
|
|
else { |
868 |
|
|
printf("syntax: pause cpuid\n"); |
869 |
|
|
return; |
870 |
|
|
} |
871 |
|
|
|
872 |
|
|
if (cpuid < 0 || cpuid >= m->ncpus) { |
873 |
|
|
printf("cpu%i doesn't exist.\n", cpuid); |
874 |
|
|
return; |
875 |
|
|
} |
876 |
|
|
|
877 |
|
|
m->cpus[cpuid]->running ^= 1; |
878 |
|
|
|
879 |
|
|
printf("cpu%i (%s) in machine \"%s\" is now %s\n", cpuid, |
880 |
|
|
m->cpus[cpuid]->name, m->name, |
881 |
|
|
m->cpus[cpuid]->running? "RUNNING" : "STOPPED"); |
882 |
|
|
} |
883 |
|
|
|
884 |
|
|
|
885 |
|
|
/* |
886 |
|
|
* debugger_cmd_print(): |
887 |
|
|
*/ |
888 |
|
|
static void debugger_cmd_print(struct machine *m, char *cmd_line) |
889 |
|
|
{ |
890 |
|
|
int res; |
891 |
|
|
uint64_t tmp; |
892 |
|
|
|
893 |
|
|
while (cmd_line[0] != '\0' && cmd_line[0] == ' ') |
894 |
|
|
cmd_line ++; |
895 |
|
|
|
896 |
|
|
if (cmd_line[0] == '\0') { |
897 |
|
|
printf("syntax: print expr\n"); |
898 |
|
|
return; |
899 |
|
|
} |
900 |
|
|
|
901 |
|
|
res = debugger_parse_name(m, cmd_line, 0, &tmp); |
902 |
|
|
switch (res) { |
903 |
|
|
case NAME_PARSE_NOMATCH: |
904 |
|
|
printf("No match.\n"); |
905 |
|
|
break; |
906 |
|
|
case NAME_PARSE_MULTIPLE: |
907 |
|
|
printf("Multiple matches. Try prefixing with %%, $, or @.\n"); |
908 |
|
|
break; |
909 |
|
|
case NAME_PARSE_REGISTER: |
910 |
dpavlin |
6 |
printf("%s = 0x%llx\n", cmd_line, (long long)tmp); |
911 |
|
|
break; |
912 |
dpavlin |
2 |
case NAME_PARSE_SYMBOL: |
913 |
|
|
printf("%s = 0x%016llx\n", cmd_line, (long long)tmp); |
914 |
|
|
break; |
915 |
|
|
case NAME_PARSE_NUMBER: |
916 |
dpavlin |
6 |
printf("0x%llx\n", (long long)tmp); |
917 |
dpavlin |
2 |
break; |
918 |
|
|
} |
919 |
|
|
} |
920 |
|
|
|
921 |
|
|
|
922 |
|
|
/* |
923 |
|
|
* debugger_cmd_put(): |
924 |
|
|
*/ |
925 |
|
|
static void debugger_cmd_put(struct machine *m, char *cmd_line) |
926 |
|
|
{ |
927 |
|
|
static char put_type = ' '; /* Remembered across multiple calls. */ |
928 |
|
|
char copy[200]; |
929 |
|
|
int res, syntax_ok = 0; |
930 |
|
|
char *p, *p2, *q = NULL; |
931 |
|
|
uint64_t addr, data; |
932 |
|
|
unsigned char a_byte; |
933 |
|
|
|
934 |
|
|
strncpy(copy, cmd_line, sizeof(copy)); |
935 |
|
|
copy[sizeof(copy)-1] = '\0'; |
936 |
|
|
|
937 |
|
|
/* syntax: put [b|h|w|d|q] addr, data */ |
938 |
|
|
|
939 |
|
|
p = strchr(copy, ','); |
940 |
|
|
if (p != NULL) { |
941 |
|
|
*p++ = '\0'; |
942 |
|
|
while (*p == ' ' && *p) |
943 |
|
|
p++; |
944 |
|
|
while (strlen(copy) >= 1 && |
945 |
|
|
copy[strlen(copy) - 1] == ' ') |
946 |
|
|
copy[strlen(copy) - 1] = '\0'; |
947 |
|
|
|
948 |
|
|
/* printf("L = '%s', R = '%s'\n", copy, p); */ |
949 |
|
|
|
950 |
|
|
q = copy; |
951 |
|
|
p2 = strchr(q, ' '); |
952 |
|
|
|
953 |
|
|
if (p2 != NULL) { |
954 |
|
|
*p2 = '\0'; |
955 |
|
|
if (strlen(q) != 1) { |
956 |
|
|
printf("Invalid type '%s'\n", q); |
957 |
|
|
return; |
958 |
|
|
} |
959 |
|
|
put_type = *q; |
960 |
|
|
q = p2 + 1; |
961 |
|
|
} |
962 |
|
|
|
963 |
|
|
/* printf("type '%c', L '%s', R '%s'\n", put_type, q, p); */ |
964 |
|
|
syntax_ok = 1; |
965 |
|
|
} |
966 |
|
|
|
967 |
|
|
if (!syntax_ok) { |
968 |
|
|
printf("syntax: put [b|h|w|d|q] addr, data\n"); |
969 |
|
|
printf(" b byte (8 bits)\n"); |
970 |
|
|
printf(" h half-word (16 bits)\n"); |
971 |
|
|
printf(" w word (32 bits)\n"); |
972 |
|
|
printf(" d doubleword (64 bits)\n"); |
973 |
|
|
printf(" q quad-word (128 bits)\n"); |
974 |
|
|
return; |
975 |
|
|
} |
976 |
|
|
|
977 |
|
|
if (put_type == ' ') { |
978 |
|
|
printf("No type specified.\n"); |
979 |
|
|
return; |
980 |
|
|
} |
981 |
|
|
|
982 |
|
|
/* here: q is the address, p is the data. */ |
983 |
|
|
|
984 |
|
|
res = debugger_parse_name(m, q, 0, &addr); |
985 |
|
|
switch (res) { |
986 |
|
|
case NAME_PARSE_NOMATCH: |
987 |
|
|
printf("Couldn't parse the address.\n"); |
988 |
|
|
return; |
989 |
|
|
case NAME_PARSE_MULTIPLE: |
990 |
|
|
printf("Multiple matches for the address." |
991 |
|
|
" Try prefixing with %%, $, or @.\n"); |
992 |
|
|
return; |
993 |
|
|
case NAME_PARSE_REGISTER: |
994 |
|
|
case NAME_PARSE_SYMBOL: |
995 |
|
|
case NAME_PARSE_NUMBER: |
996 |
|
|
break; |
997 |
|
|
default: |
998 |
|
|
printf("INTERNAL ERROR in debugger.c.\n"); |
999 |
|
|
return; |
1000 |
|
|
} |
1001 |
|
|
|
1002 |
|
|
res = debugger_parse_name(m, p, 0, &data); |
1003 |
|
|
switch (res) { |
1004 |
|
|
case NAME_PARSE_NOMATCH: |
1005 |
|
|
printf("Couldn't parse the data.\n"); |
1006 |
|
|
return; |
1007 |
|
|
case NAME_PARSE_MULTIPLE: |
1008 |
|
|
printf("Multiple matches for the data value." |
1009 |
|
|
" Try prefixing with %%, $, or @.\n"); |
1010 |
|
|
return; |
1011 |
|
|
case NAME_PARSE_REGISTER: |
1012 |
|
|
case NAME_PARSE_SYMBOL: |
1013 |
|
|
case NAME_PARSE_NUMBER: |
1014 |
|
|
break; |
1015 |
|
|
default: |
1016 |
|
|
printf("INTERNAL ERROR in debugger.c.\n"); |
1017 |
|
|
return; |
1018 |
|
|
} |
1019 |
|
|
|
1020 |
|
|
/* TODO: haha, maybe this should be refactored */ |
1021 |
|
|
|
1022 |
|
|
switch (put_type) { |
1023 |
|
|
case 'b': |
1024 |
|
|
a_byte = data; |
1025 |
|
|
printf("0x%016llx: %02x", (long long)addr, a_byte); |
1026 |
|
|
if (data > 255) |
1027 |
|
|
printf(" (NOTE: truncating %0llx)", (long long)data); |
1028 |
|
|
res = m->cpus[0]->memory_rw(m->cpus[0], m->cpus[0]->mem, addr, |
1029 |
|
|
&a_byte, 1, MEM_WRITE, CACHE_NONE | NO_EXCEPTIONS); |
1030 |
|
|
if (!res) |
1031 |
|
|
printf(" FAILED!\n"); |
1032 |
|
|
printf("\n"); |
1033 |
|
|
return; |
1034 |
|
|
case 'h': |
1035 |
|
|
if ((data & 1) != 0) |
1036 |
|
|
printf("WARNING: address isn't aligned\n"); |
1037 |
|
|
printf("0x%016llx: %04x", (long long)addr, (int)data); |
1038 |
|
|
if (data > 0xffff) |
1039 |
|
|
printf(" (NOTE: truncating %0llx)", (long long)data); |
1040 |
|
|
res = store_16bit_word(m->cpus[0], addr, data); |
1041 |
|
|
if (!res) |
1042 |
|
|
printf(" FAILED!\n"); |
1043 |
|
|
printf("\n"); |
1044 |
|
|
return; |
1045 |
|
|
case 'w': |
1046 |
|
|
if ((data & 3) != 0) |
1047 |
|
|
printf("WARNING: address isn't aligned\n"); |
1048 |
|
|
printf("0x%016llx: %08x", (long long)addr, (int)data); |
1049 |
|
|
if (data > 0xffffffff && (data >> 32) != 0 |
1050 |
|
|
&& (data >> 32) != 0xffffffff) |
1051 |
|
|
printf(" (NOTE: truncating %0llx)", (long long)data); |
1052 |
|
|
res = store_32bit_word(m->cpus[0], addr, data); |
1053 |
|
|
if (!res) |
1054 |
|
|
printf(" FAILED!\n"); |
1055 |
|
|
printf("\n"); |
1056 |
|
|
return; |
1057 |
|
|
case 'd': |
1058 |
|
|
if ((data & 7) != 0) |
1059 |
|
|
printf("WARNING: address isn't aligned\n"); |
1060 |
|
|
printf("0x%016llx: %016llx", (long long)addr, (long long)data); |
1061 |
|
|
res = store_64bit_word(m->cpus[0], addr, data); |
1062 |
|
|
if (!res) |
1063 |
|
|
printf(" FAILED!\n"); |
1064 |
|
|
printf("\n"); |
1065 |
|
|
return; |
1066 |
|
|
case 'q': |
1067 |
|
|
printf("quad-words: TODO\n"); |
1068 |
|
|
/* TODO */ |
1069 |
|
|
return; |
1070 |
|
|
default: |
1071 |
|
|
printf("Unimplemented type '%c'\n", put_type); |
1072 |
|
|
return; |
1073 |
|
|
} |
1074 |
|
|
} |
1075 |
|
|
|
1076 |
|
|
|
1077 |
|
|
/* |
1078 |
|
|
* debugger_cmd_quiet(): |
1079 |
|
|
*/ |
1080 |
|
|
static void debugger_cmd_quiet(struct machine *m, char *cmd_line) |
1081 |
|
|
{ |
1082 |
|
|
int toggle = 1; |
1083 |
|
|
int previous_mode = old_quiet_mode; |
1084 |
|
|
|
1085 |
|
|
if (cmd_line[0] != '\0') { |
1086 |
|
|
while (cmd_line[0] != '\0' && cmd_line[0] == ' ') |
1087 |
|
|
cmd_line ++; |
1088 |
|
|
switch (cmd_line[0]) { |
1089 |
|
|
case '0': |
1090 |
|
|
toggle = 0; |
1091 |
|
|
old_quiet_mode = 0; |
1092 |
|
|
break; |
1093 |
|
|
case '1': |
1094 |
|
|
toggle = 0; |
1095 |
|
|
old_quiet_mode = 1; |
1096 |
|
|
break; |
1097 |
|
|
case 'o': |
1098 |
|
|
case 'O': |
1099 |
|
|
toggle = 0; |
1100 |
|
|
switch (cmd_line[1]) { |
1101 |
|
|
case 'n': |
1102 |
|
|
case 'N': |
1103 |
|
|
old_quiet_mode = 1; |
1104 |
|
|
break; |
1105 |
|
|
default: |
1106 |
|
|
old_quiet_mode = 0; |
1107 |
|
|
} |
1108 |
|
|
break; |
1109 |
|
|
default: |
1110 |
|
|
printf("syntax: quiet [on|off]\n"); |
1111 |
|
|
return; |
1112 |
|
|
} |
1113 |
|
|
} |
1114 |
|
|
|
1115 |
|
|
if (toggle) |
1116 |
|
|
old_quiet_mode = 1 - old_quiet_mode; |
1117 |
|
|
|
1118 |
|
|
printf("quiet_mode = %s", old_quiet_mode? "ON" : "OFF"); |
1119 |
|
|
if (old_quiet_mode != previous_mode) |
1120 |
|
|
printf(" (was: %s)", previous_mode? "ON" : "OFF"); |
1121 |
|
|
printf("\n"); |
1122 |
|
|
} |
1123 |
|
|
|
1124 |
|
|
|
1125 |
|
|
/* |
1126 |
|
|
* debugger_cmd_quit(): |
1127 |
|
|
*/ |
1128 |
|
|
static void debugger_cmd_quit(struct machine *m, char *cmd_line) |
1129 |
|
|
{ |
1130 |
|
|
int i, j, k; |
1131 |
|
|
struct emul *e; |
1132 |
|
|
|
1133 |
|
|
if (*cmd_line) { |
1134 |
|
|
printf("syntax: quit\n"); |
1135 |
|
|
return; |
1136 |
|
|
} |
1137 |
|
|
|
1138 |
|
|
for (i=0; i<debugger_n_emuls; i++) { |
1139 |
|
|
single_step = 0; |
1140 |
|
|
|
1141 |
|
|
e = debugger_emuls[i]; |
1142 |
|
|
force_debugger_at_exit = 0; |
1143 |
|
|
|
1144 |
|
|
for (j=0; j<e->n_machines; j++) { |
1145 |
|
|
struct machine *m = e->machines[j]; |
1146 |
|
|
|
1147 |
|
|
for (k=0; k<m->ncpus; k++) |
1148 |
|
|
m->cpus[k]->running = 0; |
1149 |
|
|
|
1150 |
|
|
m->exit_without_entering_debugger = 1; |
1151 |
|
|
} |
1152 |
|
|
} |
1153 |
|
|
|
1154 |
|
|
exit_debugger = 1; |
1155 |
|
|
} |
1156 |
|
|
|
1157 |
|
|
|
1158 |
|
|
/* |
1159 |
|
|
* debugger_cmd_reg(): |
1160 |
|
|
*/ |
1161 |
|
|
static void debugger_cmd_reg(struct machine *m, char *cmd_line) |
1162 |
|
|
{ |
1163 |
|
|
int i, cpuid = -1, coprocnr = -1; |
1164 |
|
|
int gprs, coprocs; |
1165 |
|
|
char *p; |
1166 |
|
|
|
1167 |
|
|
/* [cpuid][,c] */ |
1168 |
|
|
if (cmd_line[0] != '\0') { |
1169 |
|
|
if (cmd_line[0] != ',') { |
1170 |
|
|
cpuid = strtoull(cmd_line, NULL, 0); |
1171 |
|
|
if (cpuid < 0 || cpuid >= m->ncpus) { |
1172 |
|
|
printf("cpu%i doesn't exist.\n", cpuid); |
1173 |
|
|
return; |
1174 |
|
|
} |
1175 |
|
|
} |
1176 |
|
|
p = strchr(cmd_line, ','); |
1177 |
|
|
if (p != NULL) { |
1178 |
|
|
coprocnr = atoi(p + 1); |
1179 |
|
|
if (coprocnr < 0 || coprocnr >= 4) { |
1180 |
|
|
printf("Invalid coprocessor number.\n"); |
1181 |
|
|
return; |
1182 |
|
|
} |
1183 |
|
|
} |
1184 |
|
|
} |
1185 |
|
|
|
1186 |
|
|
gprs = (coprocnr == -1)? 1 : 0; |
1187 |
|
|
coprocs = (coprocnr == -1)? 0x0 : (1 << coprocnr); |
1188 |
|
|
|
1189 |
|
|
for (i=0; i<m->ncpus; i++) |
1190 |
|
|
if (cpuid == -1 || i == cpuid) |
1191 |
|
|
cpu_register_dump(m, m->cpus[i], gprs, coprocs); |
1192 |
|
|
} |
1193 |
|
|
|
1194 |
|
|
|
1195 |
|
|
/* |
1196 |
|
|
* debugger_cmd_step(): |
1197 |
|
|
*/ |
1198 |
|
|
static void debugger_cmd_step(struct machine *m, char *cmd_line) |
1199 |
|
|
{ |
1200 |
|
|
int n = 1; |
1201 |
|
|
|
1202 |
|
|
if (cmd_line[0] != '\0') { |
1203 |
|
|
n = strtoull(cmd_line, NULL, 0); |
1204 |
|
|
if (n < 1) { |
1205 |
|
|
printf("invalid nr of steps\n"); |
1206 |
|
|
return; |
1207 |
|
|
} |
1208 |
|
|
} |
1209 |
|
|
|
1210 |
|
|
n_steps_left_before_interaction = n - 1; |
1211 |
|
|
|
1212 |
|
|
/* Special hack, see debugger() for more info. */ |
1213 |
|
|
exit_debugger = -1; |
1214 |
|
|
|
1215 |
dpavlin |
10 |
strlcpy(repeat_cmd, "step", MAX_CMD_BUFLEN); |
1216 |
dpavlin |
2 |
} |
1217 |
|
|
|
1218 |
|
|
|
1219 |
|
|
/* |
1220 |
|
|
* debugger_cmd_tlbdump(): |
1221 |
|
|
* |
1222 |
|
|
* Dump each CPU's TLB contents. |
1223 |
|
|
*/ |
1224 |
|
|
static void debugger_cmd_tlbdump(struct machine *m, char *cmd_line) |
1225 |
|
|
{ |
1226 |
|
|
int x = -1; |
1227 |
|
|
int rawflag = 0; |
1228 |
|
|
|
1229 |
|
|
if (cmd_line[0] != '\0') { |
1230 |
|
|
char *p; |
1231 |
|
|
if (cmd_line[0] != ',') { |
1232 |
|
|
x = strtoull(cmd_line, NULL, 0); |
1233 |
|
|
if (x < 0 || x >= m->ncpus) { |
1234 |
|
|
printf("cpu%i doesn't exist.\n", x); |
1235 |
|
|
return; |
1236 |
|
|
} |
1237 |
|
|
} |
1238 |
|
|
p = strchr(cmd_line, ','); |
1239 |
|
|
if (p != NULL) { |
1240 |
|
|
switch (p[1]) { |
1241 |
|
|
case 'r': |
1242 |
|
|
case 'R': |
1243 |
|
|
rawflag = 1; |
1244 |
|
|
break; |
1245 |
|
|
default: |
1246 |
|
|
printf("Unknown tlbdump flag.\n"); |
1247 |
|
|
printf("syntax: tlbdump [cpuid][,r]\n"); |
1248 |
|
|
return; |
1249 |
|
|
} |
1250 |
|
|
} |
1251 |
|
|
} |
1252 |
|
|
|
1253 |
|
|
cpu_tlbdump(m, x, rawflag); |
1254 |
|
|
} |
1255 |
|
|
|
1256 |
|
|
|
1257 |
|
|
/* |
1258 |
|
|
* debugger_cmd_trace(): |
1259 |
|
|
*/ |
1260 |
|
|
static void debugger_cmd_trace(struct machine *m, char *cmd_line) |
1261 |
|
|
{ |
1262 |
|
|
if (*cmd_line) { |
1263 |
|
|
printf("syntax: trace\n"); |
1264 |
|
|
return; |
1265 |
|
|
} |
1266 |
|
|
|
1267 |
|
|
old_show_trace_tree = 1 - old_show_trace_tree; |
1268 |
|
|
printf("show_trace_tree = %s\n", old_show_trace_tree? "ON" : "OFF"); |
1269 |
|
|
|
1270 |
|
|
if (m->bintrans_enable && old_show_trace_tree) |
1271 |
|
|
printf("NOTE: the trace tree functionality doesn't " |
1272 |
|
|
"work very well with bintrans!\n"); |
1273 |
|
|
|
1274 |
|
|
/* TODO: how to preserve quiet_mode? */ |
1275 |
|
|
old_quiet_mode = 0; |
1276 |
|
|
printf("quiet_mode = %s\n", old_quiet_mode? "ON" : "OFF"); |
1277 |
|
|
} |
1278 |
|
|
|
1279 |
|
|
|
1280 |
|
|
/* |
1281 |
|
|
* debugger_cmd_unassemble(): |
1282 |
|
|
* |
1283 |
|
|
* Dump emulated memory as instructions. |
1284 |
|
|
* |
1285 |
|
|
* syntax: unassemble [addr [endaddr]] |
1286 |
|
|
*/ |
1287 |
|
|
static void debugger_cmd_unassemble(struct machine *m, char *cmd_line) |
1288 |
|
|
{ |
1289 |
|
|
uint64_t addr, addr_start, addr_end; |
1290 |
|
|
struct cpu *c; |
1291 |
|
|
struct memory *mem; |
1292 |
|
|
char *p = NULL; |
1293 |
|
|
int r, lines_left = -1; |
1294 |
|
|
|
1295 |
|
|
if (cmd_line[0] != '\0') { |
1296 |
|
|
uint64_t tmp; |
1297 |
|
|
char *tmps = strdup(cmd_line); |
1298 |
|
|
|
1299 |
|
|
/* addr: */ |
1300 |
|
|
p = strchr(tmps, ' '); |
1301 |
|
|
if (p != NULL) |
1302 |
|
|
*p = '\0'; |
1303 |
|
|
r = debugger_parse_name(m, tmps, 0, &tmp); |
1304 |
|
|
free(tmps); |
1305 |
|
|
|
1306 |
|
|
if (r == NAME_PARSE_NOMATCH || r == NAME_PARSE_MULTIPLE) { |
1307 |
|
|
printf("Unparsable address: %s\n", cmd_line); |
1308 |
|
|
return; |
1309 |
|
|
} else { |
1310 |
|
|
last_unasm_addr = tmp; |
1311 |
|
|
} |
1312 |
|
|
|
1313 |
|
|
p = strchr(cmd_line, ' '); |
1314 |
|
|
} |
1315 |
|
|
|
1316 |
|
|
addr_start = last_unasm_addr; |
1317 |
|
|
|
1318 |
|
|
if (addr_start == MAGIC_UNTOUCHED) { |
1319 |
|
|
uint64_t tmp; |
1320 |
|
|
int match_register = 0; |
1321 |
|
|
cpu_register_match(m, "pc", 0, &tmp, &match_register); |
1322 |
|
|
if (match_register) { |
1323 |
|
|
addr_start = tmp; |
1324 |
|
|
} else { |
1325 |
|
|
printf("No starting address.\n"); |
1326 |
|
|
return; |
1327 |
|
|
} |
1328 |
|
|
} |
1329 |
|
|
|
1330 |
|
|
addr_end = addr_start + 1000; |
1331 |
|
|
|
1332 |
|
|
/* endaddr: */ |
1333 |
|
|
if (p != NULL) { |
1334 |
|
|
while (*p == ' ' && *p) |
1335 |
|
|
p++; |
1336 |
|
|
r = debugger_parse_name(m, p, 0, &addr_end); |
1337 |
|
|
if (r == NAME_PARSE_NOMATCH || r == NAME_PARSE_MULTIPLE) { |
1338 |
|
|
printf("Unparsable address: %s\n", cmd_line); |
1339 |
|
|
return; |
1340 |
|
|
} |
1341 |
|
|
} else |
1342 |
|
|
lines_left = 20; |
1343 |
|
|
|
1344 |
|
|
if (m->cpus == NULL) { |
1345 |
|
|
printf("No cpus (?)\n"); |
1346 |
|
|
return; |
1347 |
|
|
} |
1348 |
|
|
c = m->cpus[m->bootstrap_cpu]; |
1349 |
|
|
if (c == NULL) { |
1350 |
|
|
printf("m->cpus[m->bootstrap_cpu] = NULL\n"); |
1351 |
|
|
return; |
1352 |
|
|
} |
1353 |
|
|
mem = m->cpus[m->bootstrap_cpu]->mem; |
1354 |
|
|
|
1355 |
|
|
addr = addr_start; |
1356 |
|
|
|
1357 |
|
|
ctrl_c = 0; |
1358 |
|
|
|
1359 |
|
|
while (addr < addr_end) { |
1360 |
|
|
int i, len; |
1361 |
dpavlin |
4 |
unsigned char buf[32]; /* TODO: How long can an |
1362 |
dpavlin |
2 |
instruction be, on weird archs? */ |
1363 |
|
|
memset(buf, 0, sizeof(buf)); |
1364 |
|
|
|
1365 |
|
|
for (i=0; i<sizeof(buf); i++) |
1366 |
|
|
c->memory_rw(c, mem, addr+i, buf+i, 1, MEM_READ, |
1367 |
|
|
CACHE_NONE | NO_EXCEPTIONS); |
1368 |
|
|
|
1369 |
|
|
len = cpu_disassemble_instr(m, c, buf, 0, addr, 0); |
1370 |
|
|
|
1371 |
|
|
if (ctrl_c) |
1372 |
|
|
return; |
1373 |
|
|
if (len == 0) |
1374 |
|
|
break; |
1375 |
|
|
|
1376 |
|
|
addr += len; |
1377 |
|
|
|
1378 |
|
|
if (lines_left != -1) { |
1379 |
|
|
lines_left --; |
1380 |
|
|
if (lines_left == 0) |
1381 |
|
|
break; |
1382 |
|
|
} |
1383 |
|
|
} |
1384 |
|
|
|
1385 |
|
|
last_unasm_addr = addr; |
1386 |
|
|
|
1387 |
dpavlin |
10 |
strlcpy(repeat_cmd, "unassemble", MAX_CMD_BUFLEN); |
1388 |
dpavlin |
2 |
} |
1389 |
|
|
|
1390 |
|
|
|
1391 |
|
|
/* |
1392 |
|
|
* debugger_cmd_version(): |
1393 |
|
|
*/ |
1394 |
|
|
static void debugger_cmd_version(struct machine *m, char *cmd_line) |
1395 |
|
|
{ |
1396 |
|
|
if (*cmd_line) { |
1397 |
|
|
printf("syntax: version\n"); |
1398 |
|
|
return; |
1399 |
|
|
} |
1400 |
|
|
|
1401 |
|
|
#ifdef VERSION |
1402 |
|
|
printf("%s, %s\n", VERSION, COMPILE_DATE); |
1403 |
|
|
#else |
1404 |
|
|
printf("(no version), %s\n", COMPILE_DATE); |
1405 |
|
|
#endif |
1406 |
|
|
} |
1407 |
|
|
|
1408 |
|
|
|
1409 |
|
|
struct cmd { |
1410 |
|
|
char *name; |
1411 |
|
|
char *args; |
1412 |
|
|
int tmp_flag; |
1413 |
|
|
void (*f)(struct machine *, char *cmd_line); |
1414 |
|
|
char *description; |
1415 |
|
|
}; |
1416 |
|
|
|
1417 |
|
|
static struct cmd cmds[] = { |
1418 |
|
|
{ "breakpoint", "...", 0, debugger_cmd_breakpoint, |
1419 |
|
|
"manipulate breakpoints" }, |
1420 |
|
|
|
1421 |
|
|
{ "bintrans", "[on|off]", 0, debugger_cmd_bintrans, |
1422 |
|
|
"toggle bintrans on or off" }, |
1423 |
|
|
|
1424 |
|
|
/* NOTE: Try to keep 'c' down to only one command. Having 'continue' |
1425 |
|
|
available as a one-letter command is very convenient. */ |
1426 |
|
|
|
1427 |
|
|
{ "continue", "", 0, debugger_cmd_continue, |
1428 |
|
|
"continue execution" }, |
1429 |
|
|
|
1430 |
|
|
{ "device", "...", 0, debugger_cmd_device, |
1431 |
|
|
"show info about (or manipulate) devices" }, |
1432 |
|
|
|
1433 |
|
|
{ "dump", "[addr [endaddr]]", 0, debugger_cmd_dump, |
1434 |
|
|
"dump memory contents in hex and ASCII" }, |
1435 |
|
|
|
1436 |
|
|
{ "emuls", "", 0, debugger_cmd_emuls, |
1437 |
|
|
"print a summary of all current emuls" }, |
1438 |
|
|
|
1439 |
|
|
{ "focus", "x[,y]", 0, debugger_cmd_focus, |
1440 |
|
|
"changes focus to machine x (in emul y)" }, |
1441 |
|
|
|
1442 |
|
|
{ "help", "", 0, debugger_cmd_help, |
1443 |
|
|
"print this help message" }, |
1444 |
|
|
|
1445 |
|
|
{ "itrace", "", 0, debugger_cmd_itrace, |
1446 |
|
|
"toggle instruction_trace on or off" }, |
1447 |
|
|
|
1448 |
|
|
{ "lookup", "name|addr", 0, debugger_cmd_lookup, |
1449 |
|
|
"lookup a symbol by name or address" }, |
1450 |
|
|
|
1451 |
|
|
{ "machine", "", 0, debugger_cmd_machine, |
1452 |
|
|
"print a summary of the current machine" }, |
1453 |
|
|
|
1454 |
|
|
{ "opcodestats", "", 0, debugger_cmd_opcodestats, |
1455 |
|
|
"show opcode statistics" }, |
1456 |
|
|
|
1457 |
|
|
{ "pause", "cpuid", 0, debugger_cmd_pause, |
1458 |
|
|
"pause (or unpause) a CPU" }, |
1459 |
|
|
|
1460 |
|
|
{ "print", "expr", 0, debugger_cmd_print, |
1461 |
|
|
"evaluate an expression without side-effects" }, |
1462 |
|
|
|
1463 |
|
|
{ "put", "[b|h|w|d|q] addr, data", 0, debugger_cmd_put, |
1464 |
|
|
"modify emulated memory contents" }, |
1465 |
|
|
|
1466 |
|
|
{ "quiet", "[on|off]", 0, debugger_cmd_quiet, |
1467 |
|
|
"toggle quiet_mode on or off" }, |
1468 |
|
|
|
1469 |
|
|
{ "quit", "", 0, debugger_cmd_quit, |
1470 |
|
|
"quit the emulator" }, |
1471 |
|
|
|
1472 |
|
|
{ "reg", "[cpuid][,c]", 0, debugger_cmd_reg, |
1473 |
|
|
"show GPRs (or coprocessor c's registers)" }, |
1474 |
|
|
|
1475 |
|
|
/* NOTE: Try to keep 's' down to only one command. Having 'step' |
1476 |
|
|
available as a one-letter command is very convenient. */ |
1477 |
|
|
|
1478 |
|
|
{ "step", "[n]", 0, debugger_cmd_step, |
1479 |
|
|
"single-step one (or n) instruction(s)" }, |
1480 |
|
|
|
1481 |
|
|
{ "tlbdump", "[cpuid][,r]", 0, debugger_cmd_tlbdump, |
1482 |
|
|
"dump TLB contents (add ',r' for raw data)" }, |
1483 |
|
|
|
1484 |
|
|
{ "trace", "", 0, debugger_cmd_trace, |
1485 |
|
|
"toggle show_trace_tree on or off" }, |
1486 |
|
|
|
1487 |
|
|
{ "unassemble", "[addr [endaddr]]", 0, debugger_cmd_unassemble, |
1488 |
|
|
"dump memory contents as instructions" }, |
1489 |
|
|
|
1490 |
|
|
{ "version", "", 0, debugger_cmd_version, |
1491 |
|
|
"print version information" }, |
1492 |
|
|
|
1493 |
|
|
{ NULL, NULL, 0, NULL, NULL } |
1494 |
|
|
}; |
1495 |
|
|
|
1496 |
|
|
|
1497 |
|
|
/* |
1498 |
|
|
* debugger_cmd_help(): |
1499 |
|
|
* |
1500 |
|
|
* Print a list of available commands. |
1501 |
|
|
* |
1502 |
|
|
* NOTE: This is placed after the cmds[] array, because it needs to |
1503 |
|
|
* access it. |
1504 |
dpavlin |
10 |
* |
1505 |
|
|
* TODO: Command completion (ie just type "help s" for "help step"). |
1506 |
dpavlin |
2 |
*/ |
1507 |
|
|
static void debugger_cmd_help(struct machine *m, char *cmd_line) |
1508 |
|
|
{ |
1509 |
dpavlin |
10 |
int i, j, max_name_len = 0, only_one = 0, only_one_match = 0; |
1510 |
dpavlin |
2 |
|
1511 |
dpavlin |
10 |
if (cmd_line[0] != '\0') { |
1512 |
|
|
only_one = 1; |
1513 |
|
|
} |
1514 |
|
|
|
1515 |
dpavlin |
2 |
i = 0; |
1516 |
|
|
while (cmds[i].name != NULL) { |
1517 |
|
|
int a = strlen(cmds[i].name); |
1518 |
|
|
if (cmds[i].args != NULL) |
1519 |
|
|
a += 1 + strlen(cmds[i].args); |
1520 |
|
|
if (a > max_name_len) |
1521 |
|
|
max_name_len = a; |
1522 |
|
|
i++; |
1523 |
|
|
} |
1524 |
|
|
|
1525 |
dpavlin |
10 |
if (!only_one) |
1526 |
|
|
printf("Available commands:\n"); |
1527 |
dpavlin |
2 |
|
1528 |
|
|
i = 0; |
1529 |
|
|
while (cmds[i].name != NULL) { |
1530 |
|
|
char buf[100]; |
1531 |
|
|
snprintf(buf, sizeof(buf), "%s", cmds[i].name); |
1532 |
dpavlin |
10 |
|
1533 |
|
|
if (only_one) { |
1534 |
|
|
if (strcmp(cmds[i].name, cmd_line) != 0) { |
1535 |
|
|
i++; |
1536 |
|
|
continue; |
1537 |
|
|
} |
1538 |
|
|
only_one_match = 1; |
1539 |
|
|
} |
1540 |
|
|
|
1541 |
dpavlin |
2 |
if (cmds[i].args != NULL) |
1542 |
|
|
snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), |
1543 |
|
|
" %s", cmds[i].args); |
1544 |
|
|
|
1545 |
|
|
printf(" "); |
1546 |
|
|
for (j=0; j<max_name_len; j++) |
1547 |
|
|
if (j < strlen(buf)) |
1548 |
|
|
printf("%c", buf[j]); |
1549 |
|
|
else |
1550 |
|
|
printf(" "); |
1551 |
|
|
|
1552 |
|
|
printf(" %s\n", cmds[i].description); |
1553 |
|
|
i++; |
1554 |
|
|
} |
1555 |
|
|
|
1556 |
dpavlin |
10 |
if (only_one) { |
1557 |
|
|
if (!only_one_match) |
1558 |
|
|
printf("%s: no such command\n", cmd_line); |
1559 |
|
|
return; |
1560 |
|
|
} |
1561 |
|
|
|
1562 |
dpavlin |
2 |
printf("Generic assignments: x = expr\n"); |
1563 |
|
|
printf("where x must be a register, and expr can be a register, a " |
1564 |
|
|
"numeric value, or\na symbol name (+ an optional numeric offset)." |
1565 |
|
|
" In case there are multiple\nmatches (ie a symbol that has the " |
1566 |
|
|
"same name as a register), you may add a\nprefix character as a " |
1567 |
|
|
"hint: '%%' for registers, '@' for symbols, and\n'$' for numeric" |
1568 |
|
|
" values. Use 0x for hexadecimal values.\n"); |
1569 |
|
|
} |
1570 |
|
|
|
1571 |
|
|
|
1572 |
|
|
/****************************************************************************/ |
1573 |
|
|
|
1574 |
|
|
|
1575 |
|
|
/* |
1576 |
|
|
* debugger_assignment(): |
1577 |
|
|
* |
1578 |
|
|
* cmd contains something like "pc=0x80001000", or "r31=memcpy+0x40". |
1579 |
|
|
*/ |
1580 |
|
|
void debugger_assignment(struct machine *m, char *cmd) |
1581 |
|
|
{ |
1582 |
|
|
char *left, *right; |
1583 |
|
|
int res_left, res_right; |
1584 |
|
|
uint64_t tmp; |
1585 |
|
|
|
1586 |
dpavlin |
10 |
left = malloc(MAX_CMD_BUFLEN); |
1587 |
dpavlin |
2 |
if (left == NULL) { |
1588 |
|
|
fprintf(stderr, "out of memory in debugger_assignment()\n"); |
1589 |
|
|
exit(1); |
1590 |
|
|
} |
1591 |
dpavlin |
10 |
strlcpy(left, cmd, MAX_CMD_BUFLEN); |
1592 |
dpavlin |
2 |
right = strchr(left, '='); |
1593 |
|
|
if (right == NULL) { |
1594 |
|
|
fprintf(stderr, "internal error in the debugger\n"); |
1595 |
|
|
exit(1); |
1596 |
|
|
} |
1597 |
|
|
*right = '\0'; |
1598 |
|
|
|
1599 |
|
|
/* Remove trailing spaces in left: */ |
1600 |
|
|
while (strlen(left) >= 1 && left[strlen(left)-1] == ' ') |
1601 |
|
|
left[strlen(left)-1] = '\0'; |
1602 |
|
|
|
1603 |
|
|
/* Remove leading spaces in right: */ |
1604 |
|
|
right++; |
1605 |
|
|
while (*right == ' ' && *right != '\0') |
1606 |
|
|
right++; |
1607 |
|
|
|
1608 |
|
|
/* printf("left = '%s'\nright = '%s'\n", left, right); */ |
1609 |
|
|
|
1610 |
|
|
res_right = debugger_parse_name(m, right, 0, &tmp); |
1611 |
|
|
switch (res_right) { |
1612 |
|
|
case NAME_PARSE_NOMATCH: |
1613 |
|
|
printf("No match for the right-hand side of the assignment.\n"); |
1614 |
|
|
break; |
1615 |
|
|
case NAME_PARSE_MULTIPLE: |
1616 |
|
|
printf("Multiple matches for the right-hand side of the " |
1617 |
|
|
"assignment.\n"); |
1618 |
|
|
break; |
1619 |
|
|
default: |
1620 |
|
|
res_left = debugger_parse_name(m, left, 1, &tmp); |
1621 |
|
|
switch (res_left) { |
1622 |
|
|
case NAME_PARSE_NOMATCH: |
1623 |
|
|
printf("No match for the left-hand side of the " |
1624 |
|
|
"assignment.\n"); |
1625 |
|
|
break; |
1626 |
|
|
case NAME_PARSE_MULTIPLE: |
1627 |
|
|
printf("Multiple matches for the left-hand side " |
1628 |
|
|
"of the assignment.\n"); |
1629 |
|
|
break; |
1630 |
|
|
default: |
1631 |
|
|
debugger_cmd_print(m, left); |
1632 |
|
|
} |
1633 |
|
|
} |
1634 |
|
|
|
1635 |
|
|
free(left); |
1636 |
|
|
} |
1637 |
|
|
|
1638 |
|
|
|
1639 |
|
|
/* |
1640 |
|
|
* debugger_readline(): |
1641 |
|
|
* |
1642 |
|
|
* Read a line from the terminal. |
1643 |
|
|
*/ |
1644 |
|
|
static char *debugger_readline(void) |
1645 |
|
|
{ |
1646 |
|
|
int ch, i, j, n, i_match, reallen, cmd_len, cursor_pos; |
1647 |
|
|
int read_from_index = last_cmd_index; |
1648 |
|
|
char *cmd = last_cmd[last_cmd_index]; |
1649 |
|
|
|
1650 |
|
|
cmd_len = 0; cmd[0] = '\0'; |
1651 |
|
|
printf("GXemul> "); |
1652 |
|
|
fflush(stdout); |
1653 |
|
|
|
1654 |
|
|
ch = '\0'; |
1655 |
|
|
cmd_len = 0; |
1656 |
|
|
cursor_pos = 0; |
1657 |
|
|
|
1658 |
|
|
while (ch != '\n') { |
1659 |
|
|
/* |
1660 |
|
|
* TODO: This uses up 100% CPU, maybe that isn't too good. |
1661 |
|
|
* The usleep() call might make it a tiny bit nicer on other |
1662 |
|
|
* running processes, but it is still very ugly. |
1663 |
|
|
*/ |
1664 |
|
|
while ((ch = console_readchar(MAIN_CONSOLE)) < 0) { |
1665 |
|
|
x11_check_event(debugger_emuls, debugger_n_emuls); |
1666 |
|
|
usleep(2); |
1667 |
|
|
} |
1668 |
|
|
|
1669 |
|
|
if ((ch == '\b' || ch == 127) && cursor_pos > 0) { |
1670 |
|
|
/* Backspace. */ |
1671 |
|
|
cursor_pos --; |
1672 |
|
|
cmd_len --; |
1673 |
|
|
memmove(cmd + cursor_pos, cmd + cursor_pos + 1, |
1674 |
|
|
cmd_len); |
1675 |
|
|
cmd[cmd_len] = '\0'; |
1676 |
|
|
printf("\b"); |
1677 |
|
|
for (i=cursor_pos; i<cmd_len; i++) |
1678 |
|
|
printf("%c", cmd[i]); |
1679 |
|
|
printf(" \b"); |
1680 |
|
|
for (i=cursor_pos; i<cmd_len; i++) |
1681 |
|
|
printf("\b"); |
1682 |
|
|
} else if (ch == 4 && cmd_len > 0 && cursor_pos < cmd_len) { |
1683 |
|
|
/* CTRL-D: Delete. */ |
1684 |
|
|
cmd_len --; |
1685 |
|
|
memmove(cmd + cursor_pos, cmd + cursor_pos + 1, |
1686 |
|
|
cmd_len); |
1687 |
|
|
cmd[cmd_len] = '\0'; |
1688 |
|
|
for (i=cursor_pos; i<cmd_len; i++) |
1689 |
|
|
printf("%c", cmd[i]); |
1690 |
|
|
printf(" \b"); |
1691 |
|
|
for (i=cursor_pos; i<cmd_len; i++) |
1692 |
|
|
printf("\b"); |
1693 |
|
|
} else if (ch == 1) { |
1694 |
|
|
/* CTRL-A: Start of line. */ |
1695 |
|
|
while (cursor_pos > 0) { |
1696 |
|
|
cursor_pos --; |
1697 |
|
|
printf("\b"); |
1698 |
|
|
} |
1699 |
|
|
} else if (ch == 2) { |
1700 |
|
|
/* CTRL-B: Backwards one character. */ |
1701 |
|
|
if (cursor_pos > 0) { |
1702 |
|
|
printf("\b"); |
1703 |
|
|
cursor_pos --; |
1704 |
|
|
} |
1705 |
|
|
} else if (ch == 5) { |
1706 |
|
|
/* CTRL-E: End of line. */ |
1707 |
|
|
while (cursor_pos < cmd_len) { |
1708 |
|
|
printf("%c", cmd[cursor_pos]); |
1709 |
|
|
cursor_pos ++; |
1710 |
|
|
} |
1711 |
|
|
} else if (ch == 6) { |
1712 |
|
|
/* CTRL-F: Forward one character. */ |
1713 |
|
|
if (cursor_pos < cmd_len) { |
1714 |
|
|
printf("%c", |
1715 |
|
|
cmd[cursor_pos]); |
1716 |
|
|
cursor_pos ++; |
1717 |
|
|
} |
1718 |
|
|
} else if (ch == 11) { |
1719 |
|
|
/* CTRL-K: Kill to end of line. */ |
1720 |
dpavlin |
10 |
for (i=0; i<MAX_CMD_BUFLEN; i++) |
1721 |
dpavlin |
2 |
console_makeavail(MAIN_CONSOLE, 4); /* :-) */ |
1722 |
|
|
} else if (ch == 14 || ch == 16) { |
1723 |
|
|
/* CTRL-P: Previous line in the command history, |
1724 |
|
|
CTRL-N: next line */ |
1725 |
|
|
do { |
1726 |
|
|
if (ch == 14 && |
1727 |
|
|
read_from_index == last_cmd_index) |
1728 |
|
|
break; |
1729 |
|
|
if (ch == 16) |
1730 |
|
|
i = read_from_index - 1; |
1731 |
|
|
else |
1732 |
|
|
i = read_from_index + 1; |
1733 |
|
|
|
1734 |
|
|
if (i < 0) |
1735 |
|
|
i = N_PREVIOUS_CMDS - 1; |
1736 |
|
|
if (i >= N_PREVIOUS_CMDS) |
1737 |
|
|
i = 0; |
1738 |
|
|
|
1739 |
|
|
/* Special case: pressing 'down' |
1740 |
|
|
to reach last_cmd_index: */ |
1741 |
|
|
if (i == last_cmd_index) { |
1742 |
|
|
read_from_index = i; |
1743 |
|
|
for (i=cursor_pos; i<cmd_len; |
1744 |
|
|
i++) |
1745 |
|
|
printf(" "); |
1746 |
|
|
for (i=cmd_len-1; i>=0; i--) |
1747 |
|
|
printf("\b \b"); |
1748 |
|
|
cmd[0] = '\0'; |
1749 |
|
|
cmd_len = cursor_pos = 0; |
1750 |
|
|
} else if (last_cmd[i][0] != '\0') { |
1751 |
|
|
/* Copy from old line: */ |
1752 |
|
|
read_from_index = i; |
1753 |
|
|
for (i=cursor_pos; i<cmd_len; |
1754 |
|
|
i++) |
1755 |
|
|
printf(" "); |
1756 |
|
|
for (i=cmd_len-1; i>=0; i--) |
1757 |
|
|
printf("\b \b"); |
1758 |
dpavlin |
10 |
strlcpy(cmd, |
1759 |
|
|
last_cmd[read_from_index], |
1760 |
|
|
MAX_CMD_BUFLEN); |
1761 |
dpavlin |
2 |
cmd_len = strlen(cmd); |
1762 |
|
|
printf("%s", cmd); |
1763 |
|
|
cursor_pos = cmd_len; |
1764 |
|
|
} |
1765 |
|
|
} while (0); |
1766 |
dpavlin |
10 |
} else if (ch >= ' ' && cmd_len < MAX_CMD_BUFLEN-1) { |
1767 |
dpavlin |
2 |
/* Visible character: */ |
1768 |
|
|
memmove(cmd + cursor_pos + 1, cmd + cursor_pos, |
1769 |
|
|
cmd_len - cursor_pos); |
1770 |
|
|
cmd[cursor_pos] = ch; |
1771 |
|
|
cmd_len ++; |
1772 |
|
|
cursor_pos ++; |
1773 |
|
|
cmd[cmd_len] = '\0'; |
1774 |
|
|
printf("%c", ch); |
1775 |
|
|
for (i=cursor_pos; i<cmd_len; i++) |
1776 |
|
|
printf("%c", cmd[i]); |
1777 |
|
|
for (i=cursor_pos; i<cmd_len; i++) |
1778 |
|
|
printf("\b"); |
1779 |
|
|
} else if (ch == '\r' || ch == '\n') { |
1780 |
|
|
ch = '\n'; |
1781 |
|
|
printf("\n"); |
1782 |
|
|
} else if (ch == '\t') { |
1783 |
|
|
/* Super-simple tab-completion: */ |
1784 |
|
|
i = 0; |
1785 |
|
|
while (cmds[i].name != NULL) |
1786 |
|
|
cmds[i++].tmp_flag = 0; |
1787 |
|
|
|
1788 |
|
|
/* Check for a (partial) command match: */ |
1789 |
|
|
n = i = i_match = 0; |
1790 |
|
|
while (cmds[i].name != NULL) { |
1791 |
|
|
if (strncasecmp(cmds[i].name, cmd, |
1792 |
|
|
cmd_len) == 0) { |
1793 |
|
|
cmds[i].tmp_flag = 1; |
1794 |
|
|
i_match = i; |
1795 |
|
|
n++; |
1796 |
|
|
} |
1797 |
|
|
i++; |
1798 |
|
|
} |
1799 |
|
|
|
1800 |
|
|
switch (n) { |
1801 |
|
|
case 0: /* Beep. */ |
1802 |
|
|
printf("\a"); |
1803 |
|
|
break; |
1804 |
|
|
case 1: /* Add the rest of the command: */ |
1805 |
|
|
reallen = strlen(cmds[i_match].name); |
1806 |
|
|
for (i=cmd_len; i<reallen; i++) |
1807 |
|
|
console_makeavail(MAIN_CONSOLE, |
1808 |
|
|
cmds[i_match].name[i]); |
1809 |
|
|
/* ... and a space, if the command takes |
1810 |
|
|
any arguments: */ |
1811 |
|
|
if (cmds[i_match].args != NULL && |
1812 |
|
|
cmds[i_match].args[0] != '\0') |
1813 |
|
|
console_makeavail(MAIN_CONSOLE, ' '); |
1814 |
|
|
break; |
1815 |
|
|
default: |
1816 |
|
|
/* Show all possible commands: */ |
1817 |
|
|
printf("\a\n"); /* Beep. :-) */ |
1818 |
|
|
i = 0; /* i = cmds index */ |
1819 |
|
|
j = 0; /* j = # of cmds printed */ |
1820 |
|
|
while (cmds[i].name != NULL) { |
1821 |
|
|
if (cmds[i].tmp_flag) { |
1822 |
|
|
int q; |
1823 |
|
|
if (j == 0) |
1824 |
|
|
printf(" "); |
1825 |
|
|
printf("%s", |
1826 |
|
|
cmds[i].name); |
1827 |
|
|
j++; |
1828 |
|
|
if (j != 6) |
1829 |
|
|
for (q=0; q<13-strlen( |
1830 |
|
|
cmds[i].name); q++) |
1831 |
|
|
printf(" "); |
1832 |
|
|
if (j == 6) { |
1833 |
|
|
printf("\n"); |
1834 |
|
|
j = 0; |
1835 |
|
|
} |
1836 |
|
|
} |
1837 |
|
|
i++; |
1838 |
|
|
} |
1839 |
|
|
if (j != 0) |
1840 |
|
|
printf("\n"); |
1841 |
|
|
printf("GXemul> "); |
1842 |
|
|
for (i=0; i<cmd_len; i++) |
1843 |
|
|
printf("%c", cmd[i]); |
1844 |
|
|
} |
1845 |
|
|
} else if (ch == 27) { |
1846 |
|
|
/* Escape codes: (cursor keys etc) */ |
1847 |
|
|
while ((ch = console_readchar(MAIN_CONSOLE)) < 0) |
1848 |
|
|
usleep(1); |
1849 |
|
|
if (ch == '[' || ch == 'O') { |
1850 |
|
|
while ((ch = console_readchar(MAIN_CONSOLE)) |
1851 |
|
|
< 0) |
1852 |
|
|
usleep(1); |
1853 |
|
|
switch (ch) { |
1854 |
|
|
case '2': /* 2~ = ins */ |
1855 |
|
|
case '5': /* 5~ = pgup */ |
1856 |
|
|
case '6': /* 6~ = pgdn */ |
1857 |
|
|
/* TODO: Ugly hack, but might work. */ |
1858 |
|
|
while ((ch = console_readchar( |
1859 |
|
|
MAIN_CONSOLE)) < 0) |
1860 |
|
|
usleep(1); |
1861 |
|
|
/* Do nothing for these keys. */ |
1862 |
|
|
break; |
1863 |
|
|
case '3': /* 3~ = delete */ |
1864 |
|
|
/* TODO: Ugly hack, but might work. */ |
1865 |
|
|
while ((ch = console_readchar( |
1866 |
|
|
MAIN_CONSOLE)) < 0) |
1867 |
|
|
usleep(1); |
1868 |
|
|
console_makeavail(MAIN_CONSOLE, '\b'); |
1869 |
|
|
break; |
1870 |
|
|
case 'A': /* Up. */ |
1871 |
|
|
/* Up cursor ==> CTRL-P */ |
1872 |
|
|
console_makeavail(MAIN_CONSOLE, 16); |
1873 |
|
|
break; |
1874 |
|
|
case 'B': /* Down. */ |
1875 |
|
|
/* Down cursor ==> CTRL-N */ |
1876 |
|
|
console_makeavail(MAIN_CONSOLE, 14); |
1877 |
|
|
break; |
1878 |
|
|
case 'C': |
1879 |
|
|
/* Right cursor ==> CTRL-F */ |
1880 |
|
|
console_makeavail(MAIN_CONSOLE, 6); |
1881 |
|
|
break; |
1882 |
|
|
case 'D': /* Left */ |
1883 |
|
|
/* Left cursor ==> CTRL-B */ |
1884 |
|
|
console_makeavail(MAIN_CONSOLE, 2); |
1885 |
|
|
break; |
1886 |
|
|
case 'F': |
1887 |
|
|
/* End ==> CTRL-E */ |
1888 |
|
|
console_makeavail(MAIN_CONSOLE, 5); |
1889 |
|
|
break; |
1890 |
|
|
case 'H': |
1891 |
|
|
/* Home ==> CTRL-A */ |
1892 |
|
|
console_makeavail(MAIN_CONSOLE, 1); |
1893 |
|
|
break; |
1894 |
|
|
} |
1895 |
|
|
} |
1896 |
|
|
} |
1897 |
|
|
|
1898 |
|
|
fflush(stdout); |
1899 |
|
|
} |
1900 |
|
|
|
1901 |
|
|
return cmd; |
1902 |
|
|
} |
1903 |
|
|
|
1904 |
|
|
|
1905 |
|
|
/* |
1906 |
|
|
* debugger(): |
1907 |
|
|
* |
1908 |
|
|
* This is a loop, which reads a command from the terminal, and executes it. |
1909 |
|
|
*/ |
1910 |
|
|
void debugger(void) |
1911 |
|
|
{ |
1912 |
|
|
int i, n, i_match, matchlen, cmd_len; |
1913 |
|
|
char *cmd; |
1914 |
|
|
|
1915 |
|
|
if (n_steps_left_before_interaction > 0) { |
1916 |
|
|
n_steps_left_before_interaction --; |
1917 |
|
|
return; |
1918 |
|
|
} |
1919 |
|
|
|
1920 |
|
|
exit_debugger = 0; |
1921 |
|
|
|
1922 |
|
|
while (!exit_debugger) { |
1923 |
|
|
/* Read a line from the terminal: */ |
1924 |
|
|
cmd = debugger_readline(); |
1925 |
|
|
cmd_len = strlen(cmd); |
1926 |
|
|
|
1927 |
|
|
/* Remove spaces: */ |
1928 |
|
|
while (cmd_len > 0 && cmd[0]==' ') |
1929 |
|
|
memmove(cmd, cmd+1, cmd_len --); |
1930 |
|
|
while (cmd_len > 0 && cmd[cmd_len-1] == ' ') |
1931 |
|
|
cmd[(cmd_len--)-1] = '\0'; |
1932 |
|
|
|
1933 |
|
|
/* No command? Then try reading another line. */ |
1934 |
|
|
if (cmd_len == 0) { |
1935 |
|
|
/* Special case for repeated commands: */ |
1936 |
|
|
if (repeat_cmd[0] != '\0') |
1937 |
dpavlin |
10 |
strlcpy(cmd, repeat_cmd, MAX_CMD_BUFLEN); |
1938 |
dpavlin |
2 |
else |
1939 |
|
|
continue; |
1940 |
|
|
} else { |
1941 |
|
|
last_cmd_index ++; |
1942 |
|
|
if (last_cmd_index >= N_PREVIOUS_CMDS) |
1943 |
|
|
last_cmd_index = 0; |
1944 |
|
|
|
1945 |
|
|
repeat_cmd[0] = '\0'; |
1946 |
|
|
} |
1947 |
|
|
|
1948 |
|
|
/* |
1949 |
|
|
* Is there a '=' on the command line? Then try to do an |
1950 |
|
|
* assignment. (Only if there is just one word, followed |
1951 |
|
|
* by the '=' sign. This makes it possible to use commands |
1952 |
|
|
* such as "device add name addr=xyz".) |
1953 |
|
|
*/ |
1954 |
|
|
if (strchr(cmd, '=') != NULL) { |
1955 |
|
|
/* Count the nr of words: */ |
1956 |
|
|
int nw = 0, inword = 0; |
1957 |
|
|
char *p = cmd; |
1958 |
|
|
while (*p) { |
1959 |
|
|
if (*p == '=') |
1960 |
|
|
break; |
1961 |
|
|
if (*p != ' ') { |
1962 |
|
|
if (!inword) |
1963 |
|
|
nw ++; |
1964 |
|
|
inword = 1; |
1965 |
|
|
} else |
1966 |
|
|
inword = 0; |
1967 |
|
|
p++; |
1968 |
|
|
} |
1969 |
|
|
|
1970 |
|
|
if (nw == 1) { |
1971 |
|
|
debugger_assignment(debugger_machine, cmd); |
1972 |
|
|
continue; |
1973 |
|
|
} |
1974 |
|
|
} |
1975 |
|
|
|
1976 |
|
|
i = 0; |
1977 |
|
|
while (cmds[i].name != NULL) |
1978 |
|
|
cmds[i++].tmp_flag = 0; |
1979 |
|
|
|
1980 |
|
|
/* How many chars in cmd to match against: */ |
1981 |
|
|
matchlen = 0; |
1982 |
|
|
while (isalpha((int)cmd[matchlen])) |
1983 |
|
|
matchlen ++; |
1984 |
|
|
|
1985 |
|
|
/* Check for a command name match: */ |
1986 |
|
|
n = i = i_match = 0; |
1987 |
|
|
while (cmds[i].name != NULL) { |
1988 |
|
|
if (strncasecmp(cmds[i].name, cmd, matchlen) == 0) { |
1989 |
|
|
cmds[i].tmp_flag = 1; |
1990 |
|
|
i_match = i; |
1991 |
|
|
n++; |
1992 |
|
|
} |
1993 |
|
|
i++; |
1994 |
|
|
} |
1995 |
|
|
|
1996 |
|
|
/* No match? */ |
1997 |
|
|
if (n == 0) { |
1998 |
|
|
printf("Unknown command '%s'. " |
1999 |
|
|
"Type 'help' for help.\n", cmd); |
2000 |
|
|
continue; |
2001 |
|
|
} |
2002 |
|
|
|
2003 |
|
|
/* More than one match? */ |
2004 |
|
|
if (n > 1) { |
2005 |
|
|
printf("Ambiguous command '%s': ", cmd); |
2006 |
|
|
i = 0; |
2007 |
|
|
while (cmds[i].name != NULL) { |
2008 |
|
|
if (cmds[i].tmp_flag) |
2009 |
|
|
printf(" %s", cmds[i].name); |
2010 |
|
|
i++; |
2011 |
|
|
} |
2012 |
|
|
printf("\n"); |
2013 |
|
|
continue; |
2014 |
|
|
} |
2015 |
|
|
|
2016 |
|
|
/* Exactly one match: */ |
2017 |
|
|
if (cmds[i_match].f != NULL) { |
2018 |
|
|
char *p = cmd + matchlen; |
2019 |
|
|
/* Remove leading whitespace from the args... */ |
2020 |
|
|
while (*p != '\0' && *p == ' ') |
2021 |
|
|
p++; |
2022 |
|
|
|
2023 |
|
|
/* ... and run the command: */ |
2024 |
|
|
cmds[i_match].f(debugger_machine, p); |
2025 |
|
|
} else |
2026 |
|
|
printf("FATAL ERROR: internal error in debugger.c:" |
2027 |
|
|
" no handler for this command?\n"); |
2028 |
|
|
|
2029 |
|
|
/* Special hack for the "step" command: */ |
2030 |
|
|
if (exit_debugger == -1) |
2031 |
|
|
return; |
2032 |
|
|
} |
2033 |
|
|
|
2034 |
dpavlin |
10 |
gettimeofday(&debugger_machine->starttime, NULL); |
2035 |
|
|
debugger_machine->ncycles_since_gettimeofday = 0; |
2036 |
|
|
|
2037 |
dpavlin |
2 |
single_step = 0; |
2038 |
|
|
debugger_machine->instruction_trace = old_instruction_trace; |
2039 |
|
|
debugger_machine->show_trace_tree = old_show_trace_tree; |
2040 |
|
|
quiet_mode = old_quiet_mode; |
2041 |
|
|
} |
2042 |
|
|
|
2043 |
|
|
|
2044 |
|
|
/* |
2045 |
|
|
* debugger_reset(): |
2046 |
|
|
* |
2047 |
|
|
* This function should be called before calling debugger(), when it is |
2048 |
|
|
* absolutely necessary that debugger() is interactive. Otherwise, it might |
2049 |
|
|
* return without doing anything, such as when single-stepping multiple |
2050 |
|
|
* instructions at a time. |
2051 |
|
|
*/ |
2052 |
|
|
void debugger_reset(void) |
2053 |
|
|
{ |
2054 |
|
|
n_steps_left_before_interaction = 0; |
2055 |
|
|
} |
2056 |
|
|
|
2057 |
|
|
|
2058 |
|
|
/* |
2059 |
|
|
* debugger_init(): |
2060 |
|
|
* |
2061 |
|
|
* Must be called before any other debugger function is used. |
2062 |
|
|
*/ |
2063 |
|
|
void debugger_init(struct emul **emuls, int n_emuls) |
2064 |
|
|
{ |
2065 |
|
|
int i; |
2066 |
|
|
|
2067 |
|
|
debugger_n_emuls = n_emuls; |
2068 |
|
|
debugger_emuls = emuls; |
2069 |
|
|
|
2070 |
|
|
if (n_emuls < 1) { |
2071 |
|
|
fprintf(stderr, "\nERROR: No emuls (?)\n"); |
2072 |
|
|
exit(1); |
2073 |
|
|
} |
2074 |
|
|
|
2075 |
|
|
debugger_emul = emuls[0]; |
2076 |
|
|
if (emuls[0]->n_machines < 1) { |
2077 |
|
|
fprintf(stderr, "\nERROR: No machines in emuls[0], " |
2078 |
|
|
"cannot handle this situation yet.\n\n"); |
2079 |
|
|
exit(1); |
2080 |
|
|
} |
2081 |
|
|
|
2082 |
|
|
debugger_machine = emuls[0]->machines[0]; |
2083 |
|
|
|
2084 |
|
|
for (i=0; i<N_PREVIOUS_CMDS; i++) { |
2085 |
dpavlin |
10 |
last_cmd[i] = malloc(MAX_CMD_BUFLEN); |
2086 |
dpavlin |
2 |
if (last_cmd[i] == NULL) { |
2087 |
|
|
fprintf(stderr, "debugger_init(): out of memory\n"); |
2088 |
|
|
exit(1); |
2089 |
|
|
} |
2090 |
|
|
last_cmd[i][0] = '\0'; |
2091 |
|
|
} |
2092 |
|
|
|
2093 |
|
|
last_cmd_index = 0; |
2094 |
|
|
repeat_cmd[0] = '\0'; |
2095 |
|
|
} |
2096 |
|
|
|