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Message-Id: <200808290547.m7T5lfEN016119@wolfmountaingroup.com>
Date: Thu, 28 Aug 2008 23:47:41 -0600
From: jmerkey@...fmountaingroup.com
To: linux-kernel@...r.kernel.org
Subject: [PATCH 2.6.27-rc5 5/29] mdb: add mdb-base.c architecure independent functions
add mdb-base.c architecure independent functions
Signed-off-by: Jeffrey Vernon Merkey (jmerkey@...fmountaingroup.com)
--- a/debug/mdb/mdb-base.c 1969-12-31 17:00:00.000000000 -0700
+++ b/debug/mdb/mdb-base.c 2008-08-28 14:20:04.000000000 -0600
@@ -0,0 +1,2313 @@
+
+/***************************************************************************
+*
+* Copyright (c) 2008 Jeff V. Merkey All Rights Reserved.
+* 1058 East 50 South
+* Lindon, Utah 84042
+* jmerkey@...fmountaingroup.com
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation, version 2.
+*
+* This program is distributed in the hope that it will be useful, but
+* WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+* General Public License for more details.
+*
+* You are free to modify and re-distribute this program in accordance
+* with the terms specified in the GNU Public License. The copyright
+* contained in this code is required to be present in any derivative
+* works and you are required to provide the source code for this
+* program as part of any commercial or non-commercial distribution.
+* You are required to respect the rights of the Copyright holders
+* named within this code.
+*
+* jmerkey@...fmountaingroup.com is the official maintainer of
+* this code. You are encouraged to report any bugs, problems, fixes,
+* suggestions, and comments about this software.
+*
+* AUTHOR : Jeff V. Merkey
+* DESCRIP : Merkey's Linux Debugger
+*
+***************************************************************************/
+
+#include <linux/version.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/genhd.h>
+#include <linux/hdreg.h>
+#include <linux/fs.h>
+#include <linux/major.h>
+#include <linux/mm.h>
+#include <linux/cdrom.h>
+#include <linux/pagemap.h>
+#include <linux/swap.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/ctype.h>
+#include <linux/keyboard.h>
+#include <linux/console.h>
+#include <linux/serial_reg.h>
+#include <linux/uaccess.h>
+#include <asm/system.h>
+#include <asm/segment.h>
+#include <asm/atomic.h>
+#include <asm/msr.h>
+#include <linux/io.h>
+
+#ifdef CONFIG_SMP
+#include <mach_apic.h>
+#include <mach_ipi.h>
+#endif
+
+#define __KERNEL_SYSCALLS__
+#include <linux/unistd.h>
+#include <linux/kallsyms.h>
+
+#include "mdb.h"
+#include "mdb-ia32.h"
+#include "mdb-list.h"
+#include "mdb-ia32-proc.h"
+#include "mdb-base.h"
+#include "mdb-proc.h"
+#include "mdb-os.h"
+#include "mdb-keyboard.h"
+
+unsigned long debug_deref;
+unsigned long full_deref_toggle;
+unsigned long control_toggle;
+unsigned long numeric_toggle;
+unsigned long general_toggle = 1;
+unsigned long line_info_toggle = 1;
+unsigned long segment_toggle = 1;
+unsigned long reason_toggle = 1;
+
+unsigned long enterKeyACC(unsigned long key, void *stackFrame,
+ ACCELERATOR *accel)
+{
+ unsigned char *verbBuffer = &workbuf[0][0];
+ register unsigned char *verb, *pp, *vp;
+ register unsigned long count;
+
+ if (!debugCommand[0])
+ {
+ count = 0;
+ pp = (unsigned char *)lastDebugCommand;
+ vp = verb = &verbBuffer[0];
+ while (*pp && *pp == ' ' && count++ < 80)
+ pp++;
+
+ while (*pp && *pp != ' ' && count++ < 80)
+ *vp++ = *pp++;
+ *vp = '\0';
+
+ while (*pp && *pp == ' ' && count++ < 80)
+ pp++;
+
+ UpcaseString(verb);
+ if (!strcmp(verb, "P") || (lastCommand == K_F8))
+ strcpy((char *)debugCommand, "P");
+ else
+ if (!strcmp(verb, "T") || (lastCommand == K_F7))
+ strcpy((char *)debugCommand, "T");
+ else
+ if (!strcmp(verb, "W") || !strcmp(verb, "D") ||
+ !strcmp(verb, "DB") || !strcmp(verb, "DW") ||
+ !strcmp(verb, "DD") || !strcmp(verb, "DDS") ||
+ !strcmp(verb, "DS") || !strcmp(verb, "DL") ||
+ !strcmp(verb, "U") || !strcmp(verb, "UU") ||
+ !strcmp(verb, "S") || !strcmp(verb, "SS") ||
+ !strcmp(verb, "SSB") || !strcmp(verb, "ID")) {
+ strcpy((char *)debugCommand, verb);
+ repeatCommand = 1;
+ }
+ }
+ return 0;
+
+}
+
+
+unsigned long displayDebuggerHelpHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("displays general help for all commands, or help for a specific command\n");
+ DBGPrint("HELP <enter> - list all commands\n");
+ DBGPrint("HELP command <enter> - help for a specific command\n");
+
+ return 1;
+}
+
+unsigned long displayDebuggerHelp(unsigned char *commandLine,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+
+ register unsigned long count;
+ unsigned char *verbBuffer = &workbuf[0][0];
+ register unsigned char *verb, *pp, *vp;
+
+ commandLine = &commandLine[parser->debugCommandNameLength];
+ while (*commandLine && *commandLine == ' ')
+ commandLine++;
+
+ count = 0;
+ pp = commandLine;
+ vp = verb = &verbBuffer[0];
+ while (*pp && *pp == ' ' && count++ < 80)
+ pp++;
+
+ while (*pp && *pp != ' ' && count++ < 80)
+ *vp++ = *pp++;
+ *vp = '\0';
+
+ while (*pp && *pp == ' ' && count++ < 80)
+ pp++;
+
+ DebuggerParserHelpRoutine(verb, commandLine);
+ return 1;
+
+}
+
+/* TIMER */
+
+struct timer_list debug_timer;
+
+void debug_timer_callback(void)
+{
+ debug_timer.expires = jiffies + (HZ * debug_timer.data);
+ debug_timer.function = (void (*)(unsigned long))debug_timer_callback;
+ add_timer(&debug_timer);
+ mdb_breakpoint();
+ return;
+}
+
+unsigned long timedBreakpointHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("addtimer <seconds> - add int3 timer (lockup detection)\n");
+ DBGPrint("deltimer - del int3 timer\n");
+ return 1;
+}
+
+unsigned long timerBreakpoint(unsigned char *cmd, StackFrame *stackFrame,
+ unsigned long Exception, DEBUGGER_PARSER *parser)
+{
+ register int seconds;
+ unsigned long valid = 0;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (debug_timer.data)
+ {
+ DBGPrint("debug timer is already active. seconds = %i\n",
+ (int)debug_timer.data);
+ return 1;
+ }
+
+ seconds = EvaluateNumericExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ init_timer(&debug_timer);
+ debug_timer.data = seconds;
+ debug_timer.expires = jiffies + (HZ * seconds);
+ debug_timer.function = (void (*)(unsigned long))debug_timer_callback;
+ add_timer(&debug_timer);
+
+ DBGPrint("debug timer created. seconds = %i\n", seconds);
+ }
+ return 1;
+}
+
+unsigned long timerBreakpointClear(unsigned char *cmd, StackFrame *stackFrame,
+ unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ del_timer(&debug_timer);
+ debug_timer.data = 0;
+ DBGPrint("debug timer deleted\n");
+ return 1;
+}
+
+/* BT, BTA, BTP */
+
+extern int bt_stack(struct task_struct *task, struct pt_regs *regs,
+ unsigned long *stack);
+
+unsigned long backTraceHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+
+ DBGPrint("bt <addr> - display stack backtrace\n");
+ DBGPrint("bta - display stack backtrace all pids\n");
+ DBGPrint("btp <pid> - display stack backtrace by pid\n");
+ return 1;
+}
+
+unsigned long backTraceAllPID(unsigned char *cmd, StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ struct task_struct *p, *g;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ do_each_thread(g, p)
+ {
+ if (p)
+ {
+ DBGPrint("Stack backtrace for pid %d\n", p->pid);
+ if (bt_stack(p, NULL, NULL))
+ return 1;
+ }
+ } while_each_thread(g, p);
+ return 1;
+}
+
+unsigned long backTracePID(unsigned char *cmd, StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ int pid;
+ unsigned long valid = 0;
+ struct task_struct *p, *g;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ pid = EvaluateNumericExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ do_each_thread(g, p)
+ {
+ if (p && (p->pid == pid))
+ {
+ DBGPrint("Stack backtrace for pid %d\n", p->pid);
+ bt_stack(p, NULL, NULL);
+ return 1;
+ }
+ } while_each_thread(g, p);
+ DBGPrint("No process with pid %d found\n", pid);
+ }
+ else
+ DBGPrint("invalid pid entered for backtrace\n");
+
+ return 1;
+
+}
+
+unsigned long backTraceStack(unsigned char *cmd, StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid = 0, address;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ address = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ DBGPrint("Stack backtrace for address 0x%08X\n", (unsigned)address);
+ bt_stack(NULL, NULL, (unsigned long *)address);
+ return 1;
+ }
+ else
+ {
+ DBGPrint("Stack backtrace for address 0x%08X\n",
+ (unsigned)GetStackAddress(stackFrame));
+ bt_stack(NULL, NULL, (unsigned long *)GetStackAddress(stackFrame));
+ return 1;
+ }
+ return 1;
+}
+
+void DisplayASCIITable(void)
+{
+
+ register unsigned long i;
+ union bhex
+ {
+ unsigned int i;
+ struct btemp {
+ unsigned one : 1;
+ unsigned two : 1;
+ unsigned three : 1;
+ unsigned four : 1;
+ unsigned five : 1;
+ unsigned six : 1;
+ unsigned seven : 1;
+ unsigned eight : 1;
+ } b;
+ } val;
+
+ DBGPrint("ASCII Table\n");
+ for (i = 0; i < 256; i++)
+ {
+ val.i = i;
+ switch (i)
+ {
+
+ case 0:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | NULL |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one)) return;
+ break;
+
+ case 8:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | BKSP |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one)) return;
+ break;
+
+ case 9:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | TAB |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one)) return;
+ break;
+
+ case 10:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | <CR> |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one)) return;
+ break;
+
+ case 13:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | <LF> |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one)) return;
+ break;
+
+ case 32:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | SPACE |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one)) return;
+ break;
+
+ default:
+ if (DBGPrint("| %3i | (0x%02X) | (%1i%1i%1i%1i%1i%1i%1i%1ib) | %c |", (int)i, (unsigned)i,
+ (int)val.b.eight, (int)val.b.seven, (int)val.b.six,
+ (int)val.b.five, (int)val.b.four, (int)val.b.three,
+ (int)val.b.two, (int)val.b.one, (unsigned char) i)) return;
+ break;
+
+ }
+ if (DBGPrint("\n")) return;
+ }
+
+}
+
+#if defined(CONFIG_MODULES)
+
+/* LSMOD, .M */
+
+unsigned long listModulesHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint(".M - list loaded modules\n");
+ DBGPrint("lsmod - list loaded modules\n");
+ DBGPrint("rmmod <name> - unload module\n");
+ return 1;
+}
+
+unsigned long listModules(unsigned char *cmd, StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (*cmd)
+ mdb_modules(cmd, DBGPrint);
+ else
+ mdb_modules(NULL, DBGPrint);
+ return 1;
+}
+
+unsigned long unloadModule(unsigned char *cmd, StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ DBGPrint("Module unload unsupported in this version\n");
+ return 0;
+}
+
+#endif
+
+/* REBOOT */
+
+unsigned long rebootSystemHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("reboot - reboot host system\n");
+ return 1;
+}
+
+
+unsigned long rebootSystem(unsigned char *cmd, StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ extern void machine_restart(int);
+
+ machine_restart(0);
+ return 1;
+}
+
+/* SECTIONS, .S */
+
+unsigned long displaySectionsHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("sections - display kernel/module sections\n");
+ DBGPrint(".s - display kernel/module sections\n");
+ return 1;
+}
+
+unsigned long displaySections(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ DBGPrint("\n");
+ return 1;
+}
+
+/* PS, .P */
+
+unsigned long displayKernelProcessHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ if (commandLine) {}
+ if (parser) {}
+
+ DBGPrint("ps <addr> - display kernel processes\n");
+ DBGPrint(".p <addr> - display kernel processes\n");
+ return 1;
+}
+
+unsigned long displayKernelProcess(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ struct task_struct *p, *g;
+ unsigned long valid = 0;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (*cmd)
+ {
+ p = (struct task_struct *)EvaluateExpression(stackFrame, &cmd, &valid);
+ if (valid && p)
+ {
+ DBGPrint("%-*s Pid Parent [*] State %-*s Command\n",
+ (int)(2*sizeof(void *))+2, "Task Addr",
+ (int)(2*sizeof(void *))+2, "Thread");
+
+ if (DBGPrint("0x%p %8d %8d %d %c 0x%p %s\n",
+ (void *)p, p->pid, p->real_parent->pid,
+ p == current,
+ (p->state == 0) ? 'R' :
+ (p->state < 0) ? 'U' :
+ (p->state & TASK_UNINTERRUPTIBLE) ? 'D' :
+ (p->state & TASK_STOPPED) ? 'T' :
+ (p->state & TASK_TRACED) ? 'C' :
+ (p->exit_state & EXIT_ZOMBIE) ? 'Z' :
+ (p->exit_state & EXIT_DEAD) ? 'E' :
+ (p->state & TASK_INTERRUPTIBLE) ? 'S' : '?',
+ (void *)(&p->thread),
+ p->comm))
+ return 1;
+ return 1;
+ }
+ DBGPrint("invalid task address\n");
+ return 1;
+ }
+ else
+ {
+ DBGPrint("%-*s Pid Parent [*] State %-*s Command\n",
+ (int)(2*sizeof(void *))+2, "Task Addr",
+ (int)(2*sizeof(void *))+2, "Thread");
+
+ do_each_thread(g, p)
+ {
+ if (p)
+ {
+ if (DBGPrint("0x%p %8d %8d %d %c 0x%p %s\n",
+ (void *)p, p->pid, p->real_parent->pid,
+ p == current,
+ (p->state == 0) ? 'R' :
+ (p->state < 0) ? 'U' :
+ (p->state & TASK_UNINTERRUPTIBLE) ? 'D' :
+ (p->state & TASK_STOPPED) ? 'T' :
+ (p->state & TASK_TRACED) ? 'C' :
+ (p->exit_state & EXIT_ZOMBIE) ? 'Z' :
+ (p->exit_state & EXIT_DEAD) ? 'E' :
+ (p->state & TASK_INTERRUPTIBLE) ? 'S' : '?',
+ (void *)(&p->thread),
+ p->comm))
+ return 1;
+ }
+ } while_each_thread(g, p);
+ }
+ return 1;
+
+}
+
+unsigned long ascTableHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("a - display ASCII Table\n");
+ return 1;
+}
+
+/* A */
+
+unsigned long displayASCTable(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ DisplayASCIITable();
+ return 1;
+}
+
+typedef struct _LINE_INFO
+{
+ unsigned long SourcePresent;
+ unsigned char *SourceLine;
+ unsigned char *ModuleName;
+ unsigned long LineNumber;
+} LINE_INFO;
+
+void GetLineInfoFromValue(unsigned long value, LINE_INFO *lineInfo, unsigned long *exact)
+{
+ if (exact)
+ *exact = 0;
+
+ if (lineInfo)
+ {
+ lineInfo->SourcePresent = 0;
+ lineInfo->SourceLine = "";
+ lineInfo->ModuleName = "";
+ lineInfo->LineNumber = 0;
+ }
+ return;
+}
+
+unsigned long disassemble(StackFrame *stackFrame, unsigned long p, unsigned long count, unsigned long use)
+{
+ register unsigned long i;
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ unsigned long exact = 0;
+ extern unsigned long line_info_toggle;
+ LINE_INFO lineInfo;
+ register int c = get_processor_id();
+
+ for (i = 0; i < count; i++)
+ {
+ GetLineInfoFromValue(p, &lineInfo, &exact);
+
+ if (line_info_toggle && exact)
+ {
+ if (lineInfo.SourcePresent && lineInfo.SourceLine)
+ {
+ register unsigned long length = strlen(lineInfo.SourceLine);
+
+ i = length > 80
+ ? i + 1 + (length / 80)
+ : i + 1;
+
+ DBGPrint("%s (%s : line %d)\n",
+ lineInfo.SourceLine, lineInfo.ModuleName,
+ lineInfo.LineNumber);
+
+ }
+ else if (line_info_toggle && lineInfo.LineNumber)
+ {
+ i++;
+ DBGPrint("file %s line %d\n",
+ lineInfo.ModuleName, lineInfo.LineNumber);
+ }
+ }
+
+ if (i >= count && count != 1)
+ break;
+
+ symbolName = GetSymbolFromValue(p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ i++;
+ moduleName = GetModuleInfoFromSymbolValue(p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ {
+ if (DBGPrint("%s|%s:\n", moduleName, symbolName)) return p;
+ }
+ else
+ {
+ if (DBGPrint("%s:\n", symbolName)) return p;
+ }
+ }
+ if (i >= count && count != 1)
+ break;
+
+ if (unassemble(stackFrame, p, use, &p)) return p;
+ }
+
+ return p;
+
+}
+
+unsigned long dumpSearchResults(unsigned char *p, unsigned long count)
+{
+
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ register unsigned long i, r, total;
+ unsigned char ch;
+ register int c = get_processor_id();
+
+ if (DBGPrint(" 0 1 2 3 4 5 6 7 8 9 A B C D E F\n"))
+ return 1;
+
+ for (r = 0; r < count; r++)
+ {
+ symbolName = GetSymbolFromValue((unsigned long) p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ moduleName = GetModuleInfoFromSymbolValue((unsigned long) p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ {
+ if (DBGPrint("%s|%s:\n", moduleName, symbolName)) return 1;
+ }
+ else
+ {
+ if (DBGPrint("%s:\n", symbolName)) return 1;
+ }
+ if (r++ >= count && count != 1)
+ break;
+ }
+ DBGPrint("%08X ", (unsigned) p);
+ for (total = 0, i = 0; i < 16; i++, total++)
+ {
+ DBGPrint(" %02X", (unsigned) mdb_getword((unsigned long)&p[i], 1));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < total; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ if (DBGPrint("\n")) return 1;
+
+ p = (void *)((unsigned long) p + (unsigned long) total);
+ }
+ return 0;
+
+}
+
+unsigned char *dump(unsigned char *p, unsigned long count)
+{
+
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ register unsigned long i, r, total;
+ unsigned char ch;
+ register int c = get_processor_id();
+
+ DBGPrint(" 0 1 2 3 4 5 6 7 8 9 A B C D E F\n");
+
+ for (r = 0; r < count; r++)
+ {
+ symbolName = GetSymbolFromValue((unsigned long) p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ moduleName = GetModuleInfoFromSymbolValue((unsigned long) p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ DBGPrint("%s|%s:\n", moduleName, symbolName);
+ else
+ DBGPrint("%s:\n", symbolName);
+ if (r++ >= count && count != 1)
+ break;
+ }
+ DBGPrint("%08X ", (unsigned) p);
+ for (total = 0, i = 0; i < 16; i++, total++)
+ {
+ DBGPrint(" %02X", (unsigned) mdb_getword((unsigned long)&p[i], 1));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < total; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ DBGPrint("\n");
+
+ p = (void *)((unsigned long) p + (unsigned long) total);
+ }
+
+ return p;
+
+}
+
+unsigned long dumpWordSearchResults(unsigned char *p, unsigned long count)
+{
+
+ register int i, r;
+ unsigned short *wp;
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ unsigned char ch;
+ register int c = get_processor_id();
+
+ wp = (unsigned short *) p;
+ for (r = 0; r < count; r++)
+ {
+ symbolName = GetSymbolFromValue((unsigned long) p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ moduleName = GetModuleInfoFromSymbolValue((unsigned long) p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ {
+ if (DBGPrint("%s|%s:\n", moduleName, symbolName)) return 1;
+ }
+ else
+ {
+ if (DBGPrint("%s:\n", symbolName)) return 1;
+ }
+ if (r++ >= count && count != 1)
+ break;
+ }
+ DBGPrint("%08X ", (unsigned) p);
+ for (i = 0; i < (16 / 2); i++)
+ {
+ DBGPrint(" %04X", (unsigned) mdb_getword((unsigned long)&wp[i], 2));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < 16; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ if (DBGPrint("\n")) return 1;
+
+ p = (void *)((unsigned long) p + (unsigned long) 16);
+ wp = (unsigned short *) p;
+ }
+
+ return 0;
+
+}
+
+unsigned char *dumpWord(unsigned char *p, unsigned long count)
+{
+
+ register int i, r;
+ unsigned short *wp;
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ unsigned char ch;
+ register int c = get_processor_id();
+
+ wp = (unsigned short *) p;
+ for (r = 0; r < count; r++)
+ {
+ symbolName = GetSymbolFromValue((unsigned long) p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ moduleName = GetModuleInfoFromSymbolValue((unsigned long) p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ DBGPrint("%s|%s:\n", moduleName, symbolName);
+ else
+ DBGPrint("%s:\n", symbolName);
+ if (r++ >= count && count != 1)
+ break;
+ }
+ DBGPrint("%08X ", (unsigned) p);
+ for (i = 0; i < (16 / 2); i++)
+ {
+ DBGPrint(" %04X", (unsigned) mdb_getword((unsigned long)&wp[i], 2));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < 16; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ DBGPrint("\n");
+
+ p = (void *)((unsigned long) p + (unsigned long) 16);
+ wp = (unsigned short *) p;
+ }
+
+ return p;
+
+}
+
+unsigned long dumpDoubleSearchResults(unsigned char *p, unsigned long count)
+{
+
+ register int i, r;
+ unsigned long *lp;
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ unsigned char ch;
+ register int c = get_processor_id();
+
+ lp = (unsigned long *) p;
+
+ for (r = 0; r < count; r++)
+ {
+ symbolName = GetSymbolFromValue((unsigned long) p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ moduleName = GetModuleInfoFromSymbolValue((unsigned long) p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ {
+ if (DBGPrint("%s|%s:\n", moduleName, symbolName)) return 1;
+ }
+ else
+ {
+ if (DBGPrint("%s:\n", symbolName)) return 1;
+ }
+ if (r++ >= count && count != 1)
+ break;
+ }
+ DBGPrint("%08X ", (unsigned) p);
+ for (i = 0; i < (16 / 4); i++)
+ {
+ DBGPrint(" %08X", (unsigned) mdb_getword((unsigned long)&lp[i], 4));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < 16; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ if (DBGPrint("\n")) return 1;
+
+ p = (void *)((unsigned long) p + (unsigned long) 16);
+ lp = (unsigned long *) p;
+ }
+
+ return 0;
+
+}
+
+unsigned char *dumpDouble(unsigned char *p, unsigned long count)
+{
+
+ register int i, r;
+ unsigned long *lp;
+ unsigned char *symbolName;
+ unsigned char *moduleName;
+ unsigned char ch;
+ register int c = get_processor_id();
+
+ lp = (unsigned long *) p;
+
+ for (r = 0; r < count; r++)
+ {
+ symbolName = GetSymbolFromValue((unsigned long) p, &symbuf[c][0], MAX_SYMBOL_LEN);
+ if (symbolName)
+ {
+ moduleName = GetModuleInfoFromSymbolValue((unsigned long) p, &modbuf[c][0],
+ MAX_SYMBOL_LEN);
+ if (moduleName)
+ DBGPrint("%s|%s:\n", moduleName, symbolName);
+ else
+ DBGPrint("%s:\n", symbolName);
+ if (r++ >= count && count != 1)
+ break;
+ }
+ DBGPrint("%08X ", (unsigned) p);
+ for (i = 0; i < (16 / 4); i++)
+ {
+ DBGPrint(" %08X", (unsigned) mdb_getword((unsigned long)&lp[i], 4));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < 16; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ DBGPrint("\n");
+
+ p = (void *)((unsigned long) p + (unsigned long) 16);
+ lp = (unsigned long *) p;
+ }
+
+ return p;
+
+}
+
+unsigned char *dumpLinkedList(unsigned char *p, unsigned long count, unsigned long offset)
+{
+
+ register int i, r;
+ unsigned long *lp;
+ unsigned char ch;
+
+ lp = (unsigned long *) p;
+
+ DBGPrint(" 0 1 2 3 4 5 6 7 8 9 A B C D E F\n");
+ DBGPrint("Linked List -> [%08X + %X] = %08X\n", (unsigned)lp,
+ (unsigned)offset,
+ (unsigned)mdb_getword((unsigned long)((unsigned long)lp + (unsigned long)offset), 4));
+
+ for (r = 0; r < count; r++)
+ {
+ DBGPrint("%08X ", (unsigned) p);
+ for (i = 0; i < 16; i++)
+ {
+ DBGPrint(" %02X", (unsigned) mdb_getword((unsigned long)&p[i], 1));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < 16; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ DBGPrint("\n");
+
+ p = (void *)((unsigned long) p + (unsigned long) 16);
+ }
+
+ return (unsigned char *)(mdb_getword((unsigned long)((unsigned long)lp + (unsigned long)offset), 4));
+
+}
+
+unsigned char *dumpDoubleStack(StackFrame *stackFrame, unsigned char *p, unsigned long count)
+{
+
+ register int i, r;
+ unsigned long *lp;
+ unsigned char ch;
+
+ lp = (unsigned long *) p;
+
+ DBGPrint("Stack = %04lX:%08X\n",
+ (unsigned long)GetStackSegment(stackFrame),
+ (unsigned)p);
+
+ for (r = 0; r < count; r++)
+ {
+ DBGPrint("%04X:", (unsigned) GetStackSegment(stackFrame));
+ DBGPrint("%08X ", (unsigned) p);
+ for (i = 0; i < (16 / 4); i++)
+ {
+ DBGPrint(" %08X", (unsigned) mdb_getword((unsigned long)&lp[i], 4));
+ }
+ DBGPrint(" ");
+ for (i = 0; i < 16; i++)
+ {
+ ch = mdb_getword((unsigned long)&p[i], 1);
+
+ if (ch < 32 || ch > 126) DBGPrint(".");
+ else DBGPrint("%c", ch);
+ }
+ DBGPrint("\n");
+
+ p = (void *)((unsigned long) p + (unsigned long) 16);
+ lp = (unsigned long *) p;
+ }
+
+ return p;
+
+}
+
+unsigned char *dumpStack(StackFrame *stackFrame, unsigned char *p, unsigned long count)
+{
+
+ register int r;
+ unsigned long *lp;
+
+ lp = (unsigned long *) p;
+
+ DBGPrint("Stack = %04X:%08X\n", (unsigned)GetStackSegment(stackFrame),
+ (unsigned)p);
+
+ for (r = 0; r < count; r++)
+ {
+ DBGPrint("%08X ", (unsigned) p);
+ DBGPrint("%08X ", (unsigned) mdb_getword((unsigned long)lp, 4));
+ if (DisplayClosestSymbol(mdb_getword((unsigned long)lp, 4)))
+ DBGPrint("\n");
+
+ p = (void *)((unsigned long) p + (unsigned long) 4);
+ lp = (unsigned long *) p;
+ }
+
+ return p;
+
+}
+
+unsigned long displayToggleHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint(".tc - toggles control registers (ON | OFF)\n");
+ DBGPrint(".tn - toggles coprocessor registers (ON | OFF)\n");
+ DBGPrint(".ts - toggles segment registers (ON | OFF)\n");
+ DBGPrint(".tg - toggles general registers (ON | OFF)\n");
+ DBGPrint(".tr - toggles display of break reason (ON | OFF)\n");
+ DBGPrint(".td - toggles full dereference display (ON | OFF)\n");
+ DBGPrint(".tl - toggles source line display (ON | OFF)\n");
+ DBGPrint(".tu - toggles unasm debug display (ON | OFF)\n");
+ DBGPrint(".t or .t <address> - display task state segment (tss)\n");
+ return 1;
+}
+
+/* .TU */
+
+unsigned long ProcessTUToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (debug_deref)
+ ? (debug_deref = 0)
+ : (debug_deref = 1);
+ DBGPrint("toggle unasm debug display (%s)\n",
+ debug_deref ? "ON" : "OFF");
+ return 1;
+}
+
+/* .TD */
+
+unsigned long ProcessTDToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (full_deref_toggle)
+ ? (full_deref_toggle = 0)
+ : (full_deref_toggle = 1);
+ DBGPrint("toggle full dereferencing info (%s) \n",
+ full_deref_toggle ? "ON" : "OFF");
+ return 1;
+}
+
+
+/* .TL */
+
+unsigned long ProcessTLToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (line_info_toggle)
+ ? (line_info_toggle = 0)
+ : (line_info_toggle = 1);
+ DBGPrint("toggle source line info (%s) \n",
+ line_info_toggle ? "ON" : "OFF");
+ return 1;
+
+}
+
+/* .TG */
+
+unsigned long ProcessTGToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (general_toggle)
+ ? (general_toggle = 0)
+ : (general_toggle = 1);
+ DBGPrint("toggle general registers (%s) \n",
+ general_toggle ? "ON" : "OFF");
+ return 1;
+
+}
+
+/* .TC */
+
+unsigned long ProcessTCToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (control_toggle)
+ ? (control_toggle = 0)
+ : (control_toggle = 1);
+ DBGPrint("toggle control registers (%s) \n",
+ control_toggle ? "ON" : "OFF");
+ return 1;
+
+}
+
+/* .TN */
+
+unsigned long ProcessTNToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (numeric_toggle)
+ ? (numeric_toggle = 0)
+ : (numeric_toggle = 1);
+ DBGPrint("toggle coprocessor registers (%s) \n",
+ numeric_toggle ? "ON" : "OFF");
+ return 1;
+
+}
+
+/* .TR */
+
+unsigned long ProcessTRToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (reason_toggle)
+ ? (reason_toggle = 0)
+ : (reason_toggle = 1);
+ DBGPrint("toggle display break reason (%s) \n",
+ reason_toggle ? "ON" : "OFF");
+ return 1;
+
+}
+
+/* .TS */
+
+unsigned long ProcessTSToggle(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ (segment_toggle)
+ ? (segment_toggle = 0)
+ : (segment_toggle = 1);
+ DBGPrint("toggle segment registers (%s) \n",
+ segment_toggle ? "ON" : "OFF");
+ return 1;
+
+}
+
+unsigned long displayDebuggerVersionHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint(".v - display version info\n");
+ return 1;
+}
+
+/* .V */
+
+unsigned long DisplayDebuggerVersion(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ extern unsigned long MajorVersion;
+ extern unsigned long MinorVersion;
+ extern unsigned long BuildVersion;
+
+ DBGPrint("Merkey's Kernel Debugger\n");
+ DBGPrint("v%02d.%02d.%02d\n",
+ (int)MajorVersion, (int)MinorVersion, (int)BuildVersion);
+ DBGPrint("Copyright (C) 2008 Jeffrey Vernon Merkey. "
+ "All Rights Reserved.\n");
+
+ return 1;
+}
+
+/* .Z */
+
+unsigned long displaySymbolsHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint(".z <name> - display symbol info\n");
+ return 1;
+}
+
+unsigned long displaySymbols(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ extern void DumpOSSymbolTableMatch(unsigned char *);
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (*cmd)
+ DumpOSSymbolTableMatch(cmd);
+ else
+ DumpOSSymbolTableMatch(NULL);
+
+ return 1;
+}
+
+/* LCPU */
+
+unsigned long listProcessors(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ register int i;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ DBGPrint("Current Processor: %d\n", get_processor_id());
+ DBGPrint("Active Processors: \n");
+ for (i = 0; i < MAX_PROCESSORS; i++)
+ {
+ if (cpu_online(i))
+ DBGPrint(" Processor %d\n", i);
+ }
+ return 1;
+
+}
+
+unsigned long clearScreenHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("cls - clear the screen\n");
+ return 1;
+}
+
+/* CLS */
+
+unsigned long clearDebuggerScreen(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ extern void ClearScreen(void);
+
+ ClearScreen();
+ return 1;
+
+}
+
+unsigned long SearchMemoryHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("sb - search for bytes at address\n");
+ DBGPrint("sw - search for words at address\n");
+ DBGPrint("sd - search for dwords at address\n");
+ return 1;
+}
+
+/* S */
+
+/* use local storage and reduce stack space use. these functions are always
+ called single threaded from the console */
+
+unsigned char s_changeBuffer[16];
+unsigned char b_searchBuffer[16];
+unsigned char b_copyBuffer[16];
+unsigned short w_searchBuffer[16];
+unsigned short w_copyBuffer[16];
+unsigned long d_searchBuffer[16];
+unsigned long d_copyBuffer[16];
+
+unsigned long SearchMemory(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned char *changeBuffer = s_changeBuffer;
+ unsigned char *searchBuffer = b_searchBuffer;
+ unsigned char *copyBuffer = b_copyBuffer;
+ unsigned long maxlen = sizeof(searchBuffer);
+ register unsigned char *changeB;
+ unsigned char *pB;
+ register unsigned long address, r, value, count, len, i;
+ unsigned long valid, EndingAddress = (unsigned long)high_memory;
+ register int key;
+ extern int mdb_getkey(void);
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ memset((unsigned long *)searchBuffer, 0, sizeof(searchBuffer));
+ count = 0;
+ changeB = (unsigned char *) searchBuffer;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter bytes to search for, '.' to end input\n");
+ while ((changeBuffer[0] != '.') && (count < maxlen))
+ {
+ for (r = 0; r < 8; r++)
+ {
+ DBGPrint("0x");
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 4);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ *changeB = (unsigned char) value;
+ DBGPrint("%02X ", (unsigned char) *changeB);
+
+ changeB++;
+ if (count++ > maxlen)
+ break;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+
+ if (count)
+ {
+ DBGPrint("enter start address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ address = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ {
+ register unsigned long temp;
+
+ DBGPrint("start address = [%08X]\n", (unsigned)address);
+ DBGPrint("enter ending address for search: ");
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ temp = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ EndingAddress = temp;
+
+ DBGPrint("\nsearching memory from 0x%08X to 0x%08X\n",
+ (unsigned)address, (unsigned)EndingAddress);
+ while (address < EndingAddress)
+ {
+ read_memory((void *)address, copyBuffer, count);
+ if (!memcmp(searchBuffer, copyBuffer, count))
+ {
+ if (DBGPrint("match at address [%08X]\n",
+ (unsigned)address)) return 1;
+ if (dumpSearchResults((unsigned char *)address, 4)) return 1;
+ if (DBGPrint("searching\n")) return 1;
+ }
+ address++;
+ if (!(address % 0x100000))
+ {
+ if (DBGPrint("searching memory at address 0x%08X ..."
+ " Q or q to abort - any key to proceed\n",
+ (unsigned)address)) return 1;
+ key = mdb_getkey();
+ if (((char)key == 'Q') || ((char)key == 'q'))
+ break;
+ }
+ }
+ if (DBGPrint("search completed.\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("invalid start address\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("no search pattern\n")) return 1;
+ return 1;
+
+}
+
+/* SB */
+
+unsigned long SearchMemoryB(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned char *changeBuffer = s_changeBuffer;
+ unsigned char *searchBuffer = b_searchBuffer;
+ unsigned char *copyBuffer = b_copyBuffer;
+ unsigned long maxlen = sizeof(searchBuffer);
+ register unsigned char *changeB;
+ unsigned char *pB;
+ register unsigned long address, r, value, count, len, i;
+ unsigned long valid, EndingAddress = (unsigned long)high_memory;
+ register int key;
+ extern int mdb_getkey(void);
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ memset((unsigned long *)searchBuffer, 0, sizeof(searchBuffer));
+ count = 0;
+ changeB = (unsigned char *) searchBuffer;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter bytes to search for, '.' to end input\n");
+ while (changeBuffer[0] != '.' && count < maxlen)
+ {
+ for (r = 0; r < 8; r++)
+ {
+ DBGPrint("0x");
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 4);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ *changeB = (unsigned char) value;
+ DBGPrint("%02X ", (unsigned char) *changeB);
+
+ changeB++;
+ if (count++ > maxlen)
+ break;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+
+ if (count)
+ {
+ DBGPrint("enter start address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ address = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ {
+ register unsigned long temp;
+
+ DBGPrint("start address = [%08X]\n", (unsigned)address);
+
+ DBGPrint("enter ending address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ temp = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ EndingAddress = temp;
+
+ DBGPrint("\nsearching memory from 0x%08X to 0x%08X\n",
+ (unsigned)address, (unsigned)EndingAddress);
+ while (address < EndingAddress)
+ {
+ read_memory((void *)address, copyBuffer, count);
+ if (!memcmp(searchBuffer, copyBuffer, count))
+ {
+ if (DBGPrint("match at address [%08X]\n",
+ (unsigned)address)) return 1;
+ if (dumpSearchResults((unsigned char *)address, 4)) return 1;
+ if (DBGPrint("searching\n")) return 1;
+ }
+ address++;
+ if (!(address % 0x100000))
+ {
+ if (DBGPrint("searching memory at address 0x%08X ..."
+ " Q or q to abort - any key to proceed\n",
+ (unsigned)address)) return 1;
+ key = mdb_getkey();
+ if (((char)key == 'Q') || ((char)key == 'q'))
+ break;
+ }
+ }
+ if (DBGPrint("search completed.\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("invalid start address\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("no search pattern\n")) return 1;
+ return 1;
+}
+
+/* SW */
+
+unsigned long SearchMemoryW(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned char *changeBuffer = s_changeBuffer;
+ unsigned short *searchBuffer = w_searchBuffer;
+ unsigned short *copyBuffer = w_copyBuffer;
+ unsigned long maxlen = sizeof(searchBuffer) / sizeof(unsigned short);
+ register unsigned short *changeW;
+ unsigned char *pB;
+ register unsigned long address, r, value, count, len, i;
+ unsigned long valid, EndingAddress = (unsigned long)high_memory;
+ register int key;
+ extern int mdb_getkey(void);
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ memset((unsigned long *)searchBuffer, 0, sizeof(searchBuffer));
+ count = 0;
+ changeW = (unsigned short *) searchBuffer;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter words to search for, '.' to end input\n");
+ while (changeBuffer[0] != '.' && count < maxlen)
+ {
+ for (r = 0; r < 4; r++)
+ {
+ DBGPrint("0x");
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 6);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.') ||
+ (changeBuffer[2] == '.') || (changeBuffer[3] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ *changeW = value;
+ DBGPrint("%04X ", *changeW);
+
+ changeW++;
+ if (count++ > maxlen)
+ break;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+
+ if (count)
+ {
+ DBGPrint("enter start address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ address = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ {
+ register unsigned long temp;
+
+ DBGPrint("start address = [%08X]\n", (unsigned)address);
+
+ DBGPrint("enter ending address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ temp = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ EndingAddress = temp;
+
+ DBGPrint("searching memory from 0x%08X to 0x%08X\n",
+ (unsigned)address, (unsigned)EndingAddress);
+ while (address < EndingAddress)
+ {
+ read_memory((void *)address, copyBuffer, count * sizeof(unsigned short));
+ if (!memcmp(searchBuffer, copyBuffer, count * sizeof(unsigned short)))
+ {
+ if (DBGPrint("match at address [%08X]\n",
+ (unsigned)address)) return 1;
+ if (dumpWordSearchResults((unsigned char *)address, 4))
+ return 1;
+ if (DBGPrint("searching\n")) return 1;;
+ }
+ address++;
+ if (!(address % 0x100000))
+ {
+ if (DBGPrint("searching memory at address 0x%08X ..."
+ " Q or q to abort - any key to proceed\n",
+ (unsigned)address)) return 1;
+ key = mdb_getkey();
+ if (((char)key == 'Q') || ((char)key == 'q'))
+ break;
+ }
+ }
+ if (DBGPrint("search completed.\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("invalid start address\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("no search pattern\n")) return 1;
+ return 1;
+}
+
+/* SD */
+
+unsigned long SearchMemoryD(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ register unsigned char *changeBuffer = s_changeBuffer;
+ register unsigned long *searchBuffer = d_searchBuffer;
+ register unsigned long *copyBuffer = d_copyBuffer;
+ register unsigned long maxlen = sizeof(searchBuffer) / sizeof(unsigned long);
+ register unsigned long *changeD;
+ unsigned char *pB;
+ register unsigned long address, r, value, count, len, i;
+ unsigned long valid, EndingAddress = (unsigned long)high_memory;
+ register int key;
+ extern int mdb_getkey(void);
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ memset((unsigned long *)searchBuffer, 0, sizeof(searchBuffer));
+ count = 0;
+ changeD = (unsigned long *) searchBuffer;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter dwords to search for, '.' to end input\n");
+ while (changeBuffer[0] != '.' && count < maxlen)
+ {
+ for (r = 0; r < 2; r++)
+ {
+ DBGPrint("0x");
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 8);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.') ||
+ (changeBuffer[2] == '.') || (changeBuffer[3] == '.') ||
+ (changeBuffer[4] == '.') || (changeBuffer[5] == '.') ||
+ (changeBuffer[6] == '.') || (changeBuffer[7] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ *changeD = value;
+ DBGPrint("%08X ", (unsigned)*changeD);
+
+ changeD++;
+ if (count++ > maxlen)
+ break;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+
+ if (count)
+ {
+ DBGPrint("enter start address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ address = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ {
+ register unsigned long temp;
+
+ DBGPrint("start address = [%08X]\n", (unsigned)address);
+
+ DBGPrint("enter ending address for search: ");
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 16);
+ pB = (unsigned char *) &changeBuffer[0];
+ temp = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ EndingAddress = temp;
+
+ DBGPrint("searching memory from 0x%08X to 0x%08X\n",
+ (unsigned)address, (unsigned)EndingAddress);
+ while (address < EndingAddress)
+ {
+ read_memory((void *)address, copyBuffer, count * sizeof(unsigned long));
+ if (!memcmp(searchBuffer, copyBuffer, count * sizeof(unsigned long)))
+ {
+ if (DBGPrint("match at address [%08X]\n",
+ (unsigned)address)) return 1;
+ if (dumpDoubleSearchResults((unsigned char *)address, 4))
+ return 1;
+ if (DBGPrint("searching\n")) return 1;
+ }
+ address++;
+ if (!(address % 0x100000))
+ {
+ if (DBGPrint("searching memory at address 0x%08X ..."
+ " Q or q to abort - any key to proceed\n",
+ (unsigned)address)) return 1;
+ key = mdb_getkey();
+ if (((char)key == 'Q') || ((char)key == 'q'))
+ break;
+ }
+ }
+ if (DBGPrint("search completed.\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("invalid start address\n")) return 1;
+ return 1;
+ }
+ if (DBGPrint("no search pattern\n")) return 1;
+ return 1;
+}
+
+
+unsigned long changeMemoryHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("c <address> - change bytes at address\n");
+ DBGPrint("cb <address> - change bytes at address\n");
+ DBGPrint("cw <address> - change words at address\n");
+ DBGPrint("cd <address> - change dwords at address\n");
+ return 1;
+}
+
+/* CW */
+
+unsigned long changeWordValue(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ register unsigned char *changeBuffer = &workbuf[0][0];
+ register unsigned short *changeW, oldW;
+ unsigned char *pB;
+ register unsigned long address, r, value, len, i;
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ address = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ changeW = (unsigned short *) address;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter new value, <enter> to skip, or '.' to exit\n");
+ while (changeBuffer[0] != '.')
+ {
+ DBGPrint("[%08X] ", (unsigned)changeW);
+ for (r = 0; r < 4; r++)
+ {
+ oldW = (unsigned short) mdb_getword((unsigned long)changeW, 2);
+ DBGPrint("(%04X)=", (unsigned) oldW);
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 6);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.') ||
+ (changeBuffer[2] == '.') || (changeBuffer[3] == '.'))
+ break;
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ mdb_putword((unsigned long)changeW, value, 2);
+ DBGPrint("%04X ", (unsigned) mdb_getword((unsigned long)changeW, 2));
+ changeW++;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+ return 1;
+ }
+ DBGPrint("invalid change (word) address\n");
+ return 1;
+}
+
+/* CD */
+
+unsigned long changeDoubleValue(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ register unsigned char *changeBuffer = &workbuf[0][0];
+ register unsigned long *changeD, oldD;
+ register unsigned long address, r, value, len, i;
+ unsigned char *pB;
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ address = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ changeD = (unsigned long *) address;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter new value, <enter> to skip, or '.' to exit\n");
+ while (changeBuffer[0] != '.')
+ {
+ DBGPrint("[%08X] ", (unsigned)changeD);
+ for (r = 0; r < 2; r++)
+ {
+ oldD = (unsigned long) mdb_getword((unsigned long)changeD, 4);
+ DBGPrint("(%08X)=", (unsigned) oldD);
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 8);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.') ||
+ (changeBuffer[2] == '.') || (changeBuffer[3] == '.') ||
+ (changeBuffer[4] == '.') || (changeBuffer[5] == '.') ||
+ (changeBuffer[6] == '.') || (changeBuffer[7] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ mdb_putword((unsigned long)changeD, value, 4);
+ DBGPrint("%08X ", (unsigned)mdb_getword((unsigned long)changeD, 4));
+ changeD++;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+ return 1;
+ }
+ DBGPrint("invalid change (dword) address\n");
+ return 1;
+}
+
+/* CB */
+
+unsigned long changeByteValue(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned char *changeBuffer = &workbuf[0][0];
+ register unsigned char *changeB, oldB;
+ unsigned char *pB;
+ register unsigned long address, r, value, len, i;
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ address = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ changeB = (unsigned char *) address;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter new value, <enter> to skip, or '.' to exit\n");
+ while (changeBuffer[0] != '.')
+ {
+ DBGPrint("[%08X] ", (unsigned)changeB);
+ for (r = 0; r < 8; r++)
+ {
+ oldB = (unsigned char) mdb_getword((unsigned long)changeB, 1);
+ DBGPrint("(%02X)=", (unsigned) oldB);
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 4);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ mdb_putword((unsigned long)changeB, value, 1);
+ DBGPrint("%02X ", (unsigned char) mdb_getword((unsigned long)changeB, 1));
+ changeB++;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+ return 1;
+ }
+ DBGPrint("invalid change (byte) address\n");
+ return 1;
+}
+
+/* C */
+
+unsigned long changeDefaultValue(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned char *changeBuffer = &workbuf[0][0];
+ register unsigned char *changeB, oldB;
+ unsigned char *pB;
+ register unsigned long address, r, value, len, i;
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ address = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (valid)
+ {
+ changeB = (unsigned char *) address;
+ changeBuffer[0] = '\0';
+ DBGPrint("enter new value, <enter> to skip, or '.' to exit\n");
+ while (changeBuffer[0] != '.')
+ {
+ DBGPrint("[%08X] ", (unsigned)changeB);
+ for (r = 0; r < 8; r++)
+ {
+ oldB = (unsigned char) mdb_getword((unsigned long)changeB, 1);
+ DBGPrint("(%02X)=", (unsigned char) oldB);
+
+ ScreenInputFromKeyboard(&changeBuffer[0], 0, 4);
+
+ if ((changeBuffer[0] == '.') || (changeBuffer[1] == '.'))
+ break;
+
+ pB = (unsigned char *) &changeBuffer[0];
+ len = strlen(pB);
+
+ for (i = 0; i < len; i++)
+ DBGPrint("\b");
+
+ value = EvaluateExpression(0, &pB, &valid);
+ if (valid)
+ mdb_putword((unsigned long)changeB, value, 1);
+ DBGPrint("%02X ", (unsigned char) mdb_getword((unsigned long)changeB, 1));
+ changeB++;
+ }
+ if (DBGPrint("\n")) return 1;
+ }
+ return 1;
+ }
+ DBGPrint("invalid change (byte) address\n");
+ return 1;
+
+}
+
+unsigned long displayCloseHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("? <address> - display closest symbols to <address>\n");
+ return 1;
+
+}
+
+/* ? */
+
+unsigned long displayCloseSymbols(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ register unsigned long oldD;
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ oldD = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ oldD = GetIP(stackFrame);
+ DisplayClosestSymbol(oldD);
+ return 1;
+
+}
+
+unsigned long debuggerWalkStack(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastDumpAddress = dumpStack(stackFrame,
+ (unsigned char *)lastDumpAddress, lastDisplayLength);
+ return 1;
+ }
+ lastDumpAddress = (unsigned char *) EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ lastDumpAddress = (unsigned char *) GetStackAddress(stackFrame);
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastDumpAddress = dumpStack(stackFrame, (unsigned char *)lastDumpAddress, displayLength);
+ return 1;
+
+}
+
+unsigned long displayDumpHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("d <address> <#lines> - dump memory as bytes\n");
+ DBGPrint("dw <address> <#lines> - dump memory as words\n");
+ DBGPrint("dd <address> <#lines> - dump memory as double words\n");
+ DBGPrint("dl <address> <#lines> - dump linked list\n");
+ DBGPrint("ds <address> <#lines> - dump stack\n");
+ DBGPrint("dds <address> <#lines> - dump stack double word\n");
+ DBGPrint("w <address> - display symbols on the stack\n");
+
+ return 1;
+}
+
+/* DL */
+
+unsigned long debuggerDumpLinkedList(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+ extern unsigned char *lastLinkAddress;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastLinkAddress = dumpLinkedList((unsigned char *)lastLinkAddress, lastDisplayLength, 0);
+ return 1;
+ }
+
+ lastLinkAddress = (unsigned char *) EvaluateNumericExpression(stackFrame, &cmd,
+ &valid);
+ if (!valid)
+ lastLinkAddress = (unsigned char *) GetStackAddress(stackFrame);
+
+ displayLength = EvaluateNumericExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+
+ lastLinkAddress = dumpLinkedList((unsigned char *)lastLinkAddress, displayLength, 0);
+
+ return 1;
+
+}
+
+/* DW */
+
+unsigned long debuggerDumpWord(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastDumpAddress = dumpWord((unsigned char *)lastDumpAddress, lastDisplayLength);
+ return 1;
+ }
+ lastDumpAddress = (unsigned char *) EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ lastDumpAddress = (unsigned char *) GetStackAddress(stackFrame);
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastDumpAddress = dumpWord((unsigned char *)lastDumpAddress, displayLength);
+ return 1;
+}
+
+/* DS */
+
+unsigned long debuggerDumpStack(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastDumpAddress = dumpStack(stackFrame, (unsigned char *)lastDumpAddress, lastDisplayLength);
+ return 1;
+ }
+ lastDumpAddress = (unsigned char *) EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ lastDumpAddress = (unsigned char *) GetStackAddress(stackFrame);
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastDumpAddress = dumpStack(stackFrame, (unsigned char *)lastDumpAddress, displayLength);
+ return 1;
+
+}
+
+/* DDS */
+
+unsigned long debuggerDumpDoubleStack(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastDumpAddress = dumpDoubleStack(stackFrame, (unsigned char *)lastDumpAddress,
+ lastDisplayLength);
+ return 1;
+ }
+ lastDumpAddress = (unsigned char *) EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ lastDumpAddress = (unsigned char *) GetStackAddress(stackFrame);
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastDumpAddress = dumpDoubleStack(stackFrame, (unsigned char *)lastDumpAddress,
+ displayLength);
+ return 1;
+
+}
+
+/* DD */
+
+unsigned long debuggerDumpDouble(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastDumpAddress = dumpDouble((unsigned char *)lastDumpAddress, lastDisplayLength);
+ return 1;
+ }
+ lastDumpAddress = (unsigned char *) EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ lastDumpAddress = (unsigned char *) GetStackAddress(stackFrame);
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastDumpAddress = dumpDouble((unsigned char *)lastDumpAddress, displayLength);
+ return 1;
+
+}
+
+/* D */
+
+unsigned long debuggerDumpByte(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastDumpAddress = dump((unsigned char *)lastDumpAddress, lastDisplayLength);
+ return 1;
+ }
+ lastDumpAddress = (unsigned char *) EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ lastDumpAddress = (unsigned char *) GetStackAddress(stackFrame);
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastDumpAddress = dump((unsigned char *)lastDumpAddress, displayLength);
+ return 1;
+
+}
+
+unsigned long displayDisassembleHelp(unsigned char *commandLine, DEBUGGER_PARSER *parser)
+{
+ DBGPrint("id <address> <#lines> - unassemble code (32-bit)\n");
+ DBGPrint("u <address> <#lines> - unassemble code (32-bit)\n");
+ DBGPrint("uu <address> <#lines> - unassemble code (16-bit)\n");
+ return 1;
+}
+
+/* UU */
+
+unsigned long processDisassemble16(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastUnasmAddress = disassemble(stackFrame, (unsigned long)lastUnasmAddress,
+ lastDisplayLength, 0);
+ return 1;
+ }
+ lastUnasmAddress = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ {
+ if (!*cmd)
+ lastUnasmAddress = GetIP(stackFrame);
+ else
+ {
+ DBGPrint("invalid address for unassemble\n");
+ return 1;
+ }
+ }
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastUnasmAddress = disassemble(stackFrame, (unsigned long)lastUnasmAddress,
+ displayLength, 0);
+ return 1;
+}
+
+/* U */
+
+unsigned long processDisassemble32(unsigned char *cmd,
+ StackFrame *stackFrame, unsigned long Exception,
+ DEBUGGER_PARSER *parser)
+{
+ unsigned long valid;
+
+ cmd = &cmd[parser->debugCommandNameLength];
+ while (*cmd && *cmd == ' ')
+ cmd++;
+
+ if (repeatCommand)
+ {
+ lastUnasmAddress = disassemble(stackFrame, (unsigned long)lastUnasmAddress,
+ lastDisplayLength, 1);
+ return 1;
+ }
+ lastUnasmAddress = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!valid)
+ {
+ if (!*cmd)
+ lastUnasmAddress = GetIP(stackFrame);
+ else
+ {
+ DBGPrint("invalid address for unassemble\n");
+ return 1;
+ }
+ }
+ displayLength = EvaluateExpression(stackFrame, &cmd, &valid);
+ if (!displayLength || displayLength > 20)
+ displayLength = 20;
+ lastUnasmAddress = disassemble(stackFrame, (unsigned long)lastUnasmAddress,
+ displayLength, 1);
+ return 1;
+
+}
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