+++ /dev/null
-/*
- * ReactOS kernel
- * Copyright (C) 2005 ReactOS Team
- *
- * 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-/*
- * PROJECT: ReactOS kernel
- * FILE: ntoskrnl/kdbg/kdb_cli.c
- * PURPOSE: Kernel debugger command line interface
- * PROGRAMMER: Gregor Anich (blight@blight.eu.org)
- * Hervé Poussineau
- * UPDATE HISTORY:
- * Created 16/01/2005
- */
-
-/* INCLUDES ******************************************************************/
-
-#include <ntoskrnl.h>
-
-#define NDEBUG
-#include <debug.h>
-
-/* DEFINES *******************************************************************/
-
-#define KEY_BS 8
-#define KEY_ESC 27
-#define KEY_DEL 127
-
-#define KEY_SCAN_UP 72
-#define KEY_SCAN_DOWN 80
-
-/* Scan codes of keyboard keys: */
-#define KEYSC_END 0x004f
-#define KEYSC_PAGEUP 0x0049
-#define KEYSC_PAGEDOWN 0x0051
-#define KEYSC_HOME 0x0047
-#define KEYSC_ARROWUP 0x0048
-
-#define KDB_ENTER_CONDITION_TO_STRING(cond) \
- ((cond) == KdbDoNotEnter ? "never" : \
- ((cond) == KdbEnterAlways ? "always" : \
- ((cond) == KdbEnterFromKmode ? "kmode" : "umode")))
-
-#define KDB_ACCESS_TYPE_TO_STRING(type) \
- ((type) == KdbAccessRead ? "read" : \
- ((type) == KdbAccessWrite ? "write" : \
- ((type) == KdbAccessReadWrite ? "rdwr" : "exec")))
-
-#define NPX_STATE_TO_STRING(state) \
- ((state) == NPX_STATE_LOADED ? "Loaded" : \
- ((state) == NPX_STATE_NOT_LOADED ? "Not loaded" : "Unknown"))
-
-/* PROTOTYPES ****************************************************************/
-
-static BOOLEAN KdbpCmdEvalExpression(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdDisassembleX(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdRegs(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdBackTrace(ULONG Argc, PCHAR Argv[]);
-
-static BOOLEAN KdbpCmdContinue(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdStep(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdBreakPointList(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdEnableDisableClearBreakPoint(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdBreakPoint(ULONG Argc, PCHAR Argv[]);
-
-static BOOLEAN KdbpCmdThread(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdProc(ULONG Argc, PCHAR Argv[]);
-
-static BOOLEAN KdbpCmdMod(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdGdtLdtIdt(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdPcr(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdTss(ULONG Argc, PCHAR Argv[]);
-
-static BOOLEAN KdbpCmdBugCheck(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdReboot(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdFilter(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdSet(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdHelp(ULONG Argc, PCHAR Argv[]);
-static BOOLEAN KdbpCmdDmesg(ULONG Argc, PCHAR Argv[]);
-
-BOOLEAN ExpKdbgExtPool(ULONG Argc, PCHAR Argv[]);
-
-#ifdef __ROS_DWARF__
-static BOOLEAN KdbpCmdPrintStruct(ULONG Argc, PCHAR Argv[]);
-#endif
-
-/* GLOBALS *******************************************************************/
-
-static PKDBG_CLI_ROUTINE KdbCliCallbacks[10];
-static BOOLEAN KdbUseIntelSyntax = FALSE; /* Set to TRUE for intel syntax */
-static BOOLEAN KdbBreakOnModuleLoad = FALSE; /* Set to TRUE to break into KDB when a module is loaded */
-
-static CHAR KdbCommandHistoryBuffer[2048]; /* Command history string ringbuffer */
-static PCHAR KdbCommandHistory[sizeof(KdbCommandHistoryBuffer) / 8] = { NULL }; /* Command history ringbuffer */
-static LONG KdbCommandHistoryBufferIndex = 0;
-static LONG KdbCommandHistoryIndex = 0;
-
-static ULONG KdbNumberOfRowsPrinted = 0;
-static ULONG KdbNumberOfColsPrinted = 0;
-static BOOLEAN KdbOutputAborted = FALSE;
-static BOOLEAN KdbRepeatLastCommand = FALSE;
-static LONG KdbNumberOfRowsTerminal = -1;
-static LONG KdbNumberOfColsTerminal = -1;
-
-PCHAR KdbInitFileBuffer = NULL; /* Buffer where KDBinit file is loaded into during initialization */
-BOOLEAN KdbpBugCheckRequested = FALSE;
-
-/* Vars for dmesg */
-/* defined in ../kd/kdio.c, declare here: */
-extern volatile BOOLEAN KdbpIsInDmesgMode;
-extern const ULONG KdpDmesgBufferSize;
-extern PCHAR KdpDmesgBuffer;
-extern volatile ULONG KdpDmesgCurrentPosition;
-extern volatile ULONG KdpDmesgFreeBytes;
-extern volatile ULONG KdbDmesgTotalWritten;
-
-static const struct
-{
- PCHAR Name;
- PCHAR Syntax;
- PCHAR Help;
- BOOLEAN (*Fn)(ULONG Argc, PCHAR Argv[]);
-} KdbDebuggerCommands[] = {
- /* Data */
- { NULL, NULL, "Data", NULL },
- { "?", "? expression", "Evaluate expression.", KdbpCmdEvalExpression },
- { "disasm", "disasm [address] [L count]", "Disassemble count instructions at address.", KdbpCmdDisassembleX },
- { "x", "x [address] [L count]", "Display count dwords, starting at addr.", KdbpCmdDisassembleX },
- { "regs", "regs", "Display general purpose registers.", KdbpCmdRegs },
- { "cregs", "cregs", "Display control registers.", KdbpCmdRegs },
- { "sregs", "sregs", "Display status registers.", KdbpCmdRegs },
- { "dregs", "dregs", "Display debug registers.", KdbpCmdRegs },
- { "bt", "bt [*frameaddr|thread id]", "Prints current backtrace or from given frame addr", KdbpCmdBackTrace },
-#ifdef __ROS_DWARF__
- { "dt", "dt [mod] [type] [addr]", "Print a struct. Addr is optional.", KdbpCmdPrintStruct },
-#endif
-
- /* Flow control */
- { NULL, NULL, "Flow control", NULL },
- { "cont", "cont", "Continue execution (leave debugger)", KdbpCmdContinue },
- { "step", "step [count]", "Execute single instructions, stepping into interrupts.", KdbpCmdStep },
- { "next", "next [count]", "Execute single instructions, skipping calls and reps.", KdbpCmdStep },
- { "bl", "bl", "List breakpoints.", KdbpCmdBreakPointList },
- { "be", "be [breakpoint]", "Enable breakpoint.", KdbpCmdEnableDisableClearBreakPoint },
- { "bd", "bd [breakpoint]", "Disable breakpoint.", KdbpCmdEnableDisableClearBreakPoint },
- { "bc", "bc [breakpoint]", "Clear breakpoint.", KdbpCmdEnableDisableClearBreakPoint },
- { "bpx", "bpx [address] [IF condition]", "Set software execution breakpoint at address.", KdbpCmdBreakPoint },
- { "bpm", "bpm [r|w|rw|x] [byte|word|dword] [address] [IF condition]", "Set memory breakpoint at address.", KdbpCmdBreakPoint },
-
- /* Process/Thread */
- { NULL, NULL, "Process/Thread", NULL },
- { "thread", "thread [list[ pid]|[attach ]tid]", "List threads in current or specified process, display thread with given id or attach to thread.", KdbpCmdThread },
- { "proc", "proc [list|[attach ]pid]", "List processes, display process with given id or attach to process.", KdbpCmdProc },
-
- /* System information */
- { NULL, NULL, "System info", NULL },
- { "mod", "mod [address]", "List all modules or the one containing address.", KdbpCmdMod },
- { "gdt", "gdt", "Display global descriptor table.", KdbpCmdGdtLdtIdt },
- { "ldt", "ldt", "Display local descriptor table.", KdbpCmdGdtLdtIdt },
- { "idt", "idt", "Display interrupt descriptor table.", KdbpCmdGdtLdtIdt },
- { "pcr", "pcr", "Display processor control region.", KdbpCmdPcr },
- { "tss", "tss", "Display task state segment.", KdbpCmdTss },
-
- /* Others */
- { NULL, NULL, "Others", NULL },
- { "bugcheck", "bugcheck", "Bugchecks the system.", KdbpCmdBugCheck },
- { "reboot", "reboot", "Reboots the system.", KdbpCmdReboot},
- { "filter", "filter [error|warning|trace|info|level]+|-[componentname|default]", "Enable/disable debug channels", KdbpCmdFilter },
- { "set", "set [var] [value]", "Sets var to value or displays value of var.", KdbpCmdSet },
- { "dmesg", "dmesg", "Display debug messages on screen, with navigation on pages.", KdbpCmdDmesg },
- { "kmsg", "kmsg", "Kernel dmesg. Alias for dmesg.", KdbpCmdDmesg },
- { "help", "help", "Display help screen.", KdbpCmdHelp },
- { "!pool", "!pool [Address [Flags]]", "Display information about pool allocations.", ExpKdbgExtPool }
-};
-
-/* FUNCTIONS *****************************************************************/
-
-/*!\brief Transform a component name to an integer
- *
- * \param ComponentName The name of the component.
- * \param ComponentId Receives the component id on success.
- *
- * \retval TRUE Success.
- * \retval FALSE Failure.
- */
-static BOOLEAN
-KdbpGetComponentId(
- IN PCCH ComponentName,
- OUT PULONG ComponentId)
-{
- ULONG i;
-
- static struct
- {
- PCCH Name;
- ULONG Id;
- }
- ComponentTable[] =
- {
- { "DEFAULT", MAXULONG },
- { "SYSTEM", DPFLTR_SYSTEM_ID },
- { "SMSS", DPFLTR_SMSS_ID },
- { "SETUP", DPFLTR_SETUP_ID },
- { "NTFS", DPFLTR_NTFS_ID },
- { "FSTUB", DPFLTR_FSTUB_ID },
- { "CRASHDUMP", DPFLTR_CRASHDUMP_ID },
- { "CDAUDIO", DPFLTR_CDAUDIO_ID },
- { "CDROM", DPFLTR_CDROM_ID },
- { "CLASSPNP", DPFLTR_CLASSPNP_ID },
- { "DISK", DPFLTR_DISK_ID },
- { "REDBOOK", DPFLTR_REDBOOK_ID },
- { "STORPROP", DPFLTR_STORPROP_ID },
- { "SCSIPORT", DPFLTR_SCSIPORT_ID },
- { "SCSIMINIPORT", DPFLTR_SCSIMINIPORT_ID },
- { "CONFIG", DPFLTR_CONFIG_ID },
- { "I8042PRT", DPFLTR_I8042PRT_ID },
- { "SERMOUSE", DPFLTR_SERMOUSE_ID },
- { "LSERMOUS", DPFLTR_LSERMOUS_ID },
- { "KBDHID", DPFLTR_KBDHID_ID },
- { "MOUHID", DPFLTR_MOUHID_ID },
- { "KBDCLASS", DPFLTR_KBDCLASS_ID },
- { "MOUCLASS", DPFLTR_MOUCLASS_ID },
- { "TWOTRACK", DPFLTR_TWOTRACK_ID },
- { "WMILIB", DPFLTR_WMILIB_ID },
- { "ACPI", DPFLTR_ACPI_ID },
- { "AMLI", DPFLTR_AMLI_ID },
- { "HALIA64", DPFLTR_HALIA64_ID },
- { "VIDEO", DPFLTR_VIDEO_ID },
- { "SVCHOST", DPFLTR_SVCHOST_ID },
- { "VIDEOPRT", DPFLTR_VIDEOPRT_ID },
- { "TCPIP", DPFLTR_TCPIP_ID },
- { "DMSYNTH", DPFLTR_DMSYNTH_ID },
- { "NTOSPNP", DPFLTR_NTOSPNP_ID },
- { "FASTFAT", DPFLTR_FASTFAT_ID },
- { "SAMSS", DPFLTR_SAMSS_ID },
- { "PNPMGR", DPFLTR_PNPMGR_ID },
- { "NETAPI", DPFLTR_NETAPI_ID },
- { "SCSERVER", DPFLTR_SCSERVER_ID },
- { "SCCLIENT", DPFLTR_SCCLIENT_ID },
- { "SERIAL", DPFLTR_SERIAL_ID },
- { "SERENUM", DPFLTR_SERENUM_ID },
- { "UHCD", DPFLTR_UHCD_ID },
- { "RPCPROXY", DPFLTR_RPCPROXY_ID },
- { "AUTOCHK", DPFLTR_AUTOCHK_ID },
- { "DCOMSS", DPFLTR_DCOMSS_ID },
- { "UNIMODEM", DPFLTR_UNIMODEM_ID },
- { "SIS", DPFLTR_SIS_ID },
- { "FLTMGR", DPFLTR_FLTMGR_ID },
- { "WMICORE", DPFLTR_WMICORE_ID },
- { "BURNENG", DPFLTR_BURNENG_ID },
- { "IMAPI", DPFLTR_IMAPI_ID },
- { "SXS", DPFLTR_SXS_ID },
- { "FUSION", DPFLTR_FUSION_ID },
- { "IDLETASK", DPFLTR_IDLETASK_ID },
- { "SOFTPCI", DPFLTR_SOFTPCI_ID },
- { "TAPE", DPFLTR_TAPE_ID },
- { "MCHGR", DPFLTR_MCHGR_ID },
- { "IDEP", DPFLTR_IDEP_ID },
- { "PCIIDE", DPFLTR_PCIIDE_ID },
- { "FLOPPY", DPFLTR_FLOPPY_ID },
- { "FDC", DPFLTR_FDC_ID },
- { "TERMSRV", DPFLTR_TERMSRV_ID },
- { "W32TIME", DPFLTR_W32TIME_ID },
- { "PREFETCHER", DPFLTR_PREFETCHER_ID },
- { "RSFILTER", DPFLTR_RSFILTER_ID },
- { "FCPORT", DPFLTR_FCPORT_ID },
- { "PCI", DPFLTR_PCI_ID },
- { "DMIO", DPFLTR_DMIO_ID },
- { "DMCONFIG", DPFLTR_DMCONFIG_ID },
- { "DMADMIN", DPFLTR_DMADMIN_ID },
- { "WSOCKTRANSPORT", DPFLTR_WSOCKTRANSPORT_ID },
- { "VSS", DPFLTR_VSS_ID },
- { "PNPMEM", DPFLTR_PNPMEM_ID },
- { "PROCESSOR", DPFLTR_PROCESSOR_ID },
- { "DMSERVER", DPFLTR_DMSERVER_ID },
- { "SR", DPFLTR_SR_ID },
- { "INFINIBAND", DPFLTR_INFINIBAND_ID },
- { "IHVDRIVER", DPFLTR_IHVDRIVER_ID },
- { "IHVVIDEO", DPFLTR_IHVVIDEO_ID },
- { "IHVAUDIO", DPFLTR_IHVAUDIO_ID },
- { "IHVNETWORK", DPFLTR_IHVNETWORK_ID },
- { "IHVSTREAMING", DPFLTR_IHVSTREAMING_ID },
- { "IHVBUS", DPFLTR_IHVBUS_ID },
- { "HPS", DPFLTR_HPS_ID },
- { "RTLTHREADPOOL", DPFLTR_RTLTHREADPOOL_ID },
- { "LDR", DPFLTR_LDR_ID },
- { "TCPIP6", DPFLTR_TCPIP6_ID },
- { "ISAPNP", DPFLTR_ISAPNP_ID },
- { "SHPC", DPFLTR_SHPC_ID },
- { "STORPORT", DPFLTR_STORPORT_ID },
- { "STORMINIPORT", DPFLTR_STORMINIPORT_ID },
- { "PRINTSPOOLER", DPFLTR_PRINTSPOOLER_ID },
- { "VSSDYNDISK", DPFLTR_VSSDYNDISK_ID },
- { "VERIFIER", DPFLTR_VERIFIER_ID },
- { "VDS", DPFLTR_VDS_ID },
- { "VDSBAS", DPFLTR_VDSBAS_ID },
- { "VDSDYN", DPFLTR_VDSDYN_ID },
- { "VDSDYNDR", DPFLTR_VDSDYNDR_ID },
- { "VDSLDR", DPFLTR_VDSLDR_ID },
- { "VDSUTIL", DPFLTR_VDSUTIL_ID },
- { "DFRGIFC", DPFLTR_DFRGIFC_ID },
- { "MM", DPFLTR_MM_ID },
- { "DFSC", DPFLTR_DFSC_ID },
- { "WOW64", DPFLTR_WOW64_ID },
- { "ALPC", DPFLTR_ALPC_ID },
- { "WDI", DPFLTR_WDI_ID },
- { "PERFLIB", DPFLTR_PERFLIB_ID },
- { "KTM", DPFLTR_KTM_ID },
- { "IOSTRESS", DPFLTR_IOSTRESS_ID },
- { "HEAP", DPFLTR_HEAP_ID },
- { "WHEA", DPFLTR_WHEA_ID },
- { "USERGDI", DPFLTR_USERGDI_ID },
- { "MMCSS", DPFLTR_MMCSS_ID },
- { "TPM", DPFLTR_TPM_ID },
- { "THREADORDER", DPFLTR_THREADORDER_ID },
- { "ENVIRON", DPFLTR_ENVIRON_ID },
- { "EMS", DPFLTR_EMS_ID },
- { "WDT", DPFLTR_WDT_ID },
- { "FVEVOL", DPFLTR_FVEVOL_ID },
- { "NDIS", DPFLTR_NDIS_ID },
- { "NVCTRACE", DPFLTR_NVCTRACE_ID },
- { "LUAFV", DPFLTR_LUAFV_ID },
- { "APPCOMPAT", DPFLTR_APPCOMPAT_ID },
- { "USBSTOR", DPFLTR_USBSTOR_ID },
- { "SBP2PORT", DPFLTR_SBP2PORT_ID },
- { "COVERAGE", DPFLTR_COVERAGE_ID },
- { "CACHEMGR", DPFLTR_CACHEMGR_ID },
- { "MOUNTMGR", DPFLTR_MOUNTMGR_ID },
- { "CFR", DPFLTR_CFR_ID },
- { "TXF", DPFLTR_TXF_ID },
- { "KSECDD", DPFLTR_KSECDD_ID },
- { "FLTREGRESS", DPFLTR_FLTREGRESS_ID },
- { "MPIO", DPFLTR_MPIO_ID },
- { "MSDSM", DPFLTR_MSDSM_ID },
- { "UDFS", DPFLTR_UDFS_ID },
- { "PSHED", DPFLTR_PSHED_ID },
- { "STORVSP", DPFLTR_STORVSP_ID },
- { "LSASS", DPFLTR_LSASS_ID },
- { "SSPICLI", DPFLTR_SSPICLI_ID },
- { "CNG", DPFLTR_CNG_ID },
- { "EXFAT", DPFLTR_EXFAT_ID },
- { "FILETRACE", DPFLTR_FILETRACE_ID },
- { "XSAVE", DPFLTR_XSAVE_ID },
- { "SE", DPFLTR_SE_ID },
- { "DRIVEEXTENDER", DPFLTR_DRIVEEXTENDER_ID },
- };
-
- for (i = 0; i < sizeof(ComponentTable) / sizeof(ComponentTable[0]); i++)
- {
- if (_stricmp(ComponentName, ComponentTable[i].Name) == 0)
- {
- *ComponentId = ComponentTable[i].Id;
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-/*!\brief Evaluates an expression...
- *
- * Much like KdbpRpnEvaluateExpression, but prints the error message (if any)
- * at the given offset.
- *
- * \param Expression Expression to evaluate.
- * \param ErrOffset Offset (in characters) to print the error message at.
- * \param Result Receives the result on success.
- *
- * \retval TRUE Success.
- * \retval FALSE Failure.
- */
-static BOOLEAN
-KdbpEvaluateExpression(
- IN PCHAR Expression,
- IN LONG ErrOffset,
- OUT PULONGLONG Result)
-{
- static CHAR ErrMsgBuffer[130] = "^ ";
- LONG ExpressionErrOffset = -1;
- PCHAR ErrMsg = ErrMsgBuffer;
- BOOLEAN Ok;
-
- Ok = KdbpRpnEvaluateExpression(Expression, KdbCurrentTrapFrame, Result,
- &ExpressionErrOffset, ErrMsgBuffer + 2);
- if (!Ok)
- {
- if (ExpressionErrOffset >= 0)
- ExpressionErrOffset += ErrOffset;
- else
- ErrMsg += 2;
-
- KdbpPrint("%*s%s\n", ExpressionErrOffset, "", ErrMsg);
- }
-
- return Ok;
-}
-
-BOOLEAN
-NTAPI
-KdbpGetHexNumber(
- IN PCHAR pszNum,
- OUT ULONG_PTR *pulValue)
-{
- char *endptr;
-
- /* Skip optional '0x' prefix */
- if ((pszNum[0] == '0') && ((pszNum[1] == 'x') || (pszNum[1] == 'X')))
- pszNum += 2;
-
- /* Make a number from the string (hex) */
- *pulValue = strtoul(pszNum, &endptr, 16);
-
- return (*endptr == '\0');
-}
-
-/*!\brief Evaluates an expression and displays the result.
- */
-static BOOLEAN
-KdbpCmdEvalExpression(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG i, len;
- ULONGLONG Result = 0;
- ULONG ul;
- LONG l = 0;
- BOOLEAN Ok;
-
- if (Argc < 2)
- {
- KdbpPrint("?: Argument required\n");
- return TRUE;
- }
-
- /* Put the arguments back together */
- Argc--;
- for (i = 1; i < Argc; i++)
- {
- len = strlen(Argv[i]);
- Argv[i][len] = ' ';
- }
-
- /* Evaluate the expression */
- Ok = KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result);
- if (Ok)
- {
- if (Result > 0x00000000ffffffffLL)
- {
- if (Result & 0x8000000000000000LL)
- KdbpPrint("0x%016I64x %20I64u %20I64d\n", Result, Result, Result);
- else
- KdbpPrint("0x%016I64x %20I64u\n", Result, Result);
- }
- else
- {
- ul = (ULONG)Result;
-
- if (ul <= 0xff && ul >= 0x80)
- l = (LONG)((CHAR)ul);
- else if (ul <= 0xffff && ul >= 0x8000)
- l = (LONG)((SHORT)ul);
- else
- l = (LONG)ul;
-
- if (l < 0)
- KdbpPrint("0x%08lx %10lu %10ld\n", ul, ul, l);
- else
- KdbpPrint("0x%08lx %10lu\n", ul, ul);
- }
- }
-
- return TRUE;
-}
-
-#ifdef __ROS_DWARF__
-
-/*!\brief Print a struct
- */
-static VOID
-KdbpPrintStructInternal
-(PROSSYM_INFO Info,
- PCHAR Indent,
- BOOLEAN DoRead,
- PVOID BaseAddress,
- PROSSYM_AGGREGATE Aggregate)
-{
- ULONG i;
- ULONGLONG Result;
- PROSSYM_AGGREGATE_MEMBER Member;
- ULONG IndentLen = strlen(Indent);
- ROSSYM_AGGREGATE MemberAggregate = {0 };
-
- for (i = 0; i < Aggregate->NumElements; i++) {
- Member = &Aggregate->Elements[i];
- KdbpPrint("%s%p+%x: %s", Indent, ((PCHAR)BaseAddress) + Member->BaseOffset, Member->Size, Member->Name ? Member->Name : "<anoymous>");
- if (DoRead) {
- if (!strcmp(Member->Type, "_UNICODE_STRING")) {
- KdbpPrint("\"%wZ\"\n", ((PCHAR)BaseAddress) + Member->BaseOffset);
- continue;
- } else if (!strcmp(Member->Type, "PUNICODE_STRING")) {
- KdbpPrint("\"%wZ\"\n", *(((PUNICODE_STRING*)((PCHAR)BaseAddress) + Member->BaseOffset)));
- continue;
- }
- switch (Member->Size) {
- case 1:
- case 2:
- case 4:
- case 8: {
- Result = 0;
- if (NT_SUCCESS(KdbpSafeReadMemory(&Result, ((PCHAR)BaseAddress) + Member->BaseOffset, Member->Size))) {
- if (Member->Bits) {
- Result >>= Member->FirstBit;
- Result &= ((1 << Member->Bits) - 1);
- }
- KdbpPrint(" %lx\n", Result);
- }
- else goto readfail;
- break;
- }
- default: {
- if (Member->Size < 8) {
- if (NT_SUCCESS(KdbpSafeReadMemory(&Result, ((PCHAR)BaseAddress) + Member->BaseOffset, Member->Size))) {
- ULONG j;
- for (j = 0; j < Member->Size; j++) {
- KdbpPrint(" %02x", (int)(Result & 0xff));
- Result >>= 8;
- }
- } else goto readfail;
- } else {
- KdbpPrint(" %s @ %p {\n", Member->Type, ((PCHAR)BaseAddress) + Member->BaseOffset);
- Indent[IndentLen] = ' ';
- if (RosSymAggregate(Info, Member->Type, &MemberAggregate)) {
- KdbpPrintStructInternal(Info, Indent, DoRead, ((PCHAR)BaseAddress) + Member->BaseOffset, &MemberAggregate);
- RosSymFreeAggregate(&MemberAggregate);
- }
- Indent[IndentLen] = 0;
- KdbpPrint("%s}\n", Indent);
- } break;
- }
- }
- } else {
- readfail:
- if (Member->Size <= 8) {
- KdbpPrint(" ??\n");
- } else {
- KdbpPrint(" %s @ %x {\n", Member->Type, Member->BaseOffset);
- Indent[IndentLen] = ' ';
- if (RosSymAggregate(Info, Member->Type, &MemberAggregate)) {
- KdbpPrintStructInternal(Info, Indent, DoRead, BaseAddress, &MemberAggregate);
- RosSymFreeAggregate(&MemberAggregate);
- }
- Indent[IndentLen] = 0;
- KdbpPrint("%s}\n", Indent);
- }
- }
- }
-}
-
-PROSSYM_INFO KdbpSymFindCachedFile(PUNICODE_STRING ModName);
-
-static BOOLEAN
-KdbpCmdPrintStruct(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG i;
- ULONGLONG Result = 0;
- PVOID BaseAddress = 0;
- ROSSYM_AGGREGATE Aggregate = {0};
- UNICODE_STRING ModName = {0};
- ANSI_STRING AnsiName = {0};
- CHAR Indent[100] = {0};
- PROSSYM_INFO Info;
-
- if (Argc < 3) goto end;
- AnsiName.Length = AnsiName.MaximumLength = strlen(Argv[1]);
- AnsiName.Buffer = Argv[1];
- RtlAnsiStringToUnicodeString(&ModName, &AnsiName, TRUE);
- Info = KdbpSymFindCachedFile(&ModName);
-
- if (!Info || !RosSymAggregate(Info, Argv[2], &Aggregate)) {
- DPRINT1("Could not get aggregate\n");
- goto end;
- }
-
- // Get an argument for location if it was given
- if (Argc > 3) {
- ULONG len;
- PCHAR ArgStart = Argv[3];
- DPRINT1("Trying to get expression\n");
- for (i = 3; i < Argc - 1; i++)
- {
- len = strlen(Argv[i]);
- Argv[i][len] = ' ';
- }
-
- /* Evaluate the expression */
- DPRINT1("Arg: %s\n", ArgStart);
- if (KdbpEvaluateExpression(ArgStart, strlen(ArgStart), &Result)) {
- BaseAddress = (PVOID)(ULONG_PTR)Result;
- DPRINT1("BaseAddress: %p\n", BaseAddress);
- }
- }
- DPRINT1("BaseAddress %p\n", BaseAddress);
- KdbpPrintStructInternal(Info, Indent, !!BaseAddress, BaseAddress, &Aggregate);
-end:
- RosSymFreeAggregate(&Aggregate);
- RtlFreeUnicodeString(&ModName);
- return TRUE;
-}
-#endif
-
-/*!\brief Display list of active debug channels
- */
-static BOOLEAN
-KdbpCmdFilter(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG i, j, ComponentId, Level;
- ULONG set = DPFLTR_MASK, clear = DPFLTR_MASK;
- PCHAR pend;
- LPCSTR opt, p;
-
- static struct
- {
- LPCSTR Name;
- ULONG Level;
- }
- debug_classes[] =
- {
- { "error", 1 << DPFLTR_ERROR_LEVEL },
- { "warning", 1 << DPFLTR_WARNING_LEVEL },
- { "trace", 1 << DPFLTR_TRACE_LEVEL },
- { "info", 1 << DPFLTR_INFO_LEVEL },
- };
-
- for (i = 1; i < Argc; i++)
- {
- opt = Argv[i];
- p = opt + strcspn(opt, "+-");
- if (!p[0]) p = opt; /* assume it's a debug channel name */
-
- if (p > opt)
- {
- for (j = 0; j < sizeof(debug_classes) / sizeof(debug_classes[0]); j++)
- {
- SIZE_T len = strlen(debug_classes[j].Name);
- if (len != (p - opt))
- continue;
- if (_strnicmp(opt, debug_classes[j].Name, len) == 0) /* found it */
- {
- if (*p == '+')
- set |= debug_classes[j].Level;
- else
- clear |= debug_classes[j].Level;
- break;
- }
- }
- if (j == sizeof(debug_classes) / sizeof(debug_classes[0]))
- {
- Level = strtoul(opt, &pend, 0);
- if (pend != p)
- {
- KdbpPrint("filter: bad class name '%.*s'\n", p - opt, opt);
- continue;
- }
- if (*p == '+')
- set |= Level;
- else
- clear |= Level;
- }
- }
- else
- {
- if (*p == '-')
- clear = MAXULONG;
- else
- set = MAXULONG;
- }
- if (*p == '+' || *p == '-')
- p++;
-
- if (!KdbpGetComponentId(p, &ComponentId))
- {
- KdbpPrint("filter: '%s' is not a valid component name!\n", p);
- return TRUE;
- }
-
- /* Get current mask value */
- NtSetDebugFilterState(ComponentId, set, TRUE);
- NtSetDebugFilterState(ComponentId, clear, FALSE);
- }
-
- return TRUE;
-}
-
-/*!\brief Disassembles 10 instructions at eip or given address or
- * displays 16 dwords from memory at given address.
- */
-static BOOLEAN
-KdbpCmdDisassembleX(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG Count;
- ULONG ul;
- INT i;
- ULONGLONG Result = 0;
- ULONG_PTR Address = KdbCurrentTrapFrame->Tf.Eip;
- LONG InstLen;
-
- if (Argv[0][0] == 'x') /* display memory */
- Count = 16;
- else /* disassemble */
- Count = 10;
-
- if (Argc >= 2)
- {
- /* Check for [L count] part */
- ul = 0;
- if (strcmp(Argv[Argc-2], "L") == 0)
- {
- ul = strtoul(Argv[Argc-1], NULL, 0);
- if (ul > 0)
- {
- Count = ul;
- Argc -= 2;
- }
- }
- else if (Argv[Argc-1][0] == 'L')
- {
- ul = strtoul(Argv[Argc-1] + 1, NULL, 0);
- if (ul > 0)
- {
- Count = ul;
- Argc--;
- }
- }
-
- /* Put the remaining arguments back together */
- Argc--;
- for (ul = 1; ul < Argc; ul++)
- {
- Argv[ul][strlen(Argv[ul])] = ' ';
- }
- Argc++;
- }
-
- /* Evaluate the expression */
- if (Argc > 1)
- {
- if (!KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result))
- return TRUE;
-
- if (Result > (ULONGLONG)(~((ULONG_PTR)0)))
- KdbpPrint("Warning: Address %I64x is beeing truncated\n",Result);
-
- Address = (ULONG_PTR)Result;
- }
- else if (Argv[0][0] == 'x')
- {
- KdbpPrint("x: Address argument required.\n");
- return TRUE;
- }
-
- if (Argv[0][0] == 'x')
- {
- /* Display dwords */
- ul = 0;
-
- while (Count > 0)
- {
- if (!KdbSymPrintAddress((PVOID)Address, NULL))
- KdbpPrint("<%x>:", Address);
- else
- KdbpPrint(":");
-
- i = min(4, Count);
- Count -= i;
-
- while (--i >= 0)
- {
- if (!NT_SUCCESS(KdbpSafeReadMemory(&ul, (PVOID)Address, sizeof(ul))))
- KdbpPrint(" ????????");
- else
- KdbpPrint(" %08x", ul);
-
- Address += sizeof(ul);
- }
-
- KdbpPrint("\n");
- }
- }
- else
- {
- /* Disassemble */
- while (Count-- > 0)
- {
- if (!KdbSymPrintAddress((PVOID)Address, NULL))
- KdbpPrint("<%08x>: ", Address);
- else
- KdbpPrint(": ");
-
- InstLen = KdbpDisassemble(Address, KdbUseIntelSyntax);
- if (InstLen < 0)
- {
- KdbpPrint("<INVALID>\n");
- return TRUE;
- }
-
- KdbpPrint("\n");
- Address += InstLen;
- }
- }
-
- return TRUE;
-}
-
-/*!\brief Displays CPU registers.
- */
-static BOOLEAN
-KdbpCmdRegs(
- ULONG Argc,
- PCHAR Argv[])
-{
- PKTRAP_FRAME Tf = &KdbCurrentTrapFrame->Tf;
- INT i;
- static const PCHAR EflagsBits[32] = { " CF", NULL, " PF", " BIT3", " AF", " BIT5",
- " ZF", " SF", " TF", " IF", " DF", " OF",
- NULL, NULL, " NT", " BIT15", " RF", " VF",
- " AC", " VIF", " VIP", " ID", " BIT22",
- " BIT23", " BIT24", " BIT25", " BIT26",
- " BIT27", " BIT28", " BIT29", " BIT30",
- " BIT31" };
-
- if (Argv[0][0] == 'r') /* regs */
- {
- KdbpPrint("CS:EIP 0x%04x:0x%08x\n"
- "SS:ESP 0x%04x:0x%08x\n"
- " EAX 0x%08x EBX 0x%08x\n"
- " ECX 0x%08x EDX 0x%08x\n"
- " ESI 0x%08x EDI 0x%08x\n"
- " EBP 0x%08x\n",
- Tf->SegCs & 0xFFFF, Tf->Eip,
- Tf->HardwareSegSs, Tf->HardwareEsp,
- Tf->Eax, Tf->Ebx,
- Tf->Ecx, Tf->Edx,
- Tf->Esi, Tf->Edi,
- Tf->Ebp);
- KdbpPrint("EFLAGS 0x%08x ", Tf->EFlags);
-
- for (i = 0; i < 32; i++)
- {
- if (i == 1)
- {
- if ((Tf->EFlags & (1 << 1)) == 0)
- KdbpPrint(" !BIT1");
- }
- else if (i == 12)
- {
- KdbpPrint(" IOPL%d", (Tf->EFlags >> 12) & 3);
- }
- else if (i == 13)
- {
- }
- else if ((Tf->EFlags & (1 << i)) != 0)
- {
- KdbpPrint(EflagsBits[i]);
- }
- }
-
- KdbpPrint("\n");
- }
- else if (Argv[0][0] == 'c') /* cregs */
- {
- ULONG Cr0, Cr2, Cr3, Cr4;
- KDESCRIPTOR Gdtr = {0, 0, 0}, Idtr = {0, 0, 0};
- USHORT Ldtr;
- static const PCHAR Cr0Bits[32] = { " PE", " MP", " EM", " TS", " ET", " NE", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- " WP", NULL, " AM", NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, " NW", " CD", " PG" };
- static const PCHAR Cr4Bits[32] = { " VME", " PVI", " TSD", " DE", " PSE", " PAE", " MCE", " PGE",
- " PCE", " OSFXSR", " OSXMMEXCPT", NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL };
-
- Cr0 = KdbCurrentTrapFrame->Cr0;
- Cr2 = KdbCurrentTrapFrame->Cr2;
- Cr3 = KdbCurrentTrapFrame->Cr3;
- Cr4 = KdbCurrentTrapFrame->Cr4;
-
- /* Get descriptor table regs */
- Ke386GetGlobalDescriptorTable(&Gdtr.Limit);
- Ldtr = Ke386GetLocalDescriptorTable();
- __sidt(&Idtr.Limit);
-
- /* Display the control registers */
- KdbpPrint("CR0 0x%08x ", Cr0);
-
- for (i = 0; i < 32; i++)
- {
- if (!Cr0Bits[i])
- continue;
-
- if ((Cr0 & (1 << i)) != 0)
- KdbpPrint(Cr0Bits[i]);
- }
-
- KdbpPrint("\nCR2 0x%08x\n", Cr2);
- KdbpPrint("CR3 0x%08x Pagedir-Base 0x%08x %s%s\n", Cr3, (Cr3 & 0xfffff000),
- (Cr3 & (1 << 3)) ? " PWT" : "", (Cr3 & (1 << 4)) ? " PCD" : "" );
- KdbpPrint("CR4 0x%08x ", Cr4);
-
- for (i = 0; i < 32; i++)
- {
- if (!Cr4Bits[i])
- continue;
-
- if ((Cr4 & (1 << i)) != 0)
- KdbpPrint(Cr4Bits[i]);
- }
-
- /* Display the descriptor table regs */
- KdbpPrint("\nGDTR Base 0x%08x Size 0x%04x\n", Gdtr.Base, Gdtr.Limit);
- KdbpPrint("LDTR 0x%04x\n", Ldtr);
- KdbpPrint("IDTR Base 0x%08x Size 0x%04x\n", Idtr.Base, Idtr.Limit);
- }
- else if (Argv[0][0] == 's') /* sregs */
- {
- KdbpPrint("CS 0x%04x Index 0x%04x %cDT RPL%d\n",
- Tf->SegCs & 0xffff, (Tf->SegCs & 0xffff) >> 3,
- (Tf->SegCs & (1 << 2)) ? 'L' : 'G', Tf->SegCs & 3);
- KdbpPrint("DS 0x%04x Index 0x%04x %cDT RPL%d\n",
- Tf->SegDs, Tf->SegDs >> 3, (Tf->SegDs & (1 << 2)) ? 'L' : 'G', Tf->SegDs & 3);
- KdbpPrint("ES 0x%04x Index 0x%04x %cDT RPL%d\n",
- Tf->SegEs, Tf->SegEs >> 3, (Tf->SegEs & (1 << 2)) ? 'L' : 'G', Tf->SegEs & 3);
- KdbpPrint("FS 0x%04x Index 0x%04x %cDT RPL%d\n",
- Tf->SegFs, Tf->SegFs >> 3, (Tf->SegFs & (1 << 2)) ? 'L' : 'G', Tf->SegFs & 3);
- KdbpPrint("GS 0x%04x Index 0x%04x %cDT RPL%d\n",
- Tf->SegGs, Tf->SegGs >> 3, (Tf->SegGs & (1 << 2)) ? 'L' : 'G', Tf->SegGs & 3);
- KdbpPrint("SS 0x%04x Index 0x%04x %cDT RPL%d\n",
- Tf->HardwareSegSs, Tf->HardwareSegSs >> 3, (Tf->HardwareSegSs & (1 << 2)) ? 'L' : 'G', Tf->HardwareSegSs & 3);
- }
- else /* dregs */
- {
- ASSERT(Argv[0][0] == 'd');
- KdbpPrint("DR0 0x%08x\n"
- "DR1 0x%08x\n"
- "DR2 0x%08x\n"
- "DR3 0x%08x\n"
- "DR6 0x%08x\n"
- "DR7 0x%08x\n",
- Tf->Dr0, Tf->Dr1, Tf->Dr2, Tf->Dr3,
- Tf->Dr6, Tf->Dr7);
- }
-
- return TRUE;
-}
-
-static BOOLEAN
-KdbpTrapFrameFromPrevTss(
- PKTRAP_FRAME TrapFrame)
-{
- ULONG_PTR Eip, Ebp;
- KDESCRIPTOR Gdtr;
- KGDTENTRY Desc;
- USHORT Sel;
- PKTSS Tss;
-
- Ke386GetGlobalDescriptorTable(&Gdtr.Limit);
- Sel = Ke386GetTr();
-
- if ((Sel & (sizeof(KGDTENTRY) - 1)) ||
- (Sel < sizeof(KGDTENTRY)) ||
- (Sel + sizeof(KGDTENTRY) - 1 > Gdtr.Limit))
- return FALSE;
-
- if (!NT_SUCCESS(KdbpSafeReadMemory(&Desc,
- (PVOID)(Gdtr.Base + Sel),
- sizeof(KGDTENTRY))))
- return FALSE;
-
- if (Desc.HighWord.Bits.Type != 0xB)
- return FALSE;
-
- Tss = (PKTSS)(ULONG_PTR)(Desc.BaseLow |
- Desc.HighWord.Bytes.BaseMid << 16 |
- Desc.HighWord.Bytes.BaseHi << 24);
-
- if (!NT_SUCCESS(KdbpSafeReadMemory(&Sel,
- (PVOID)&Tss->Backlink,
- sizeof(USHORT))))
- return FALSE;
-
- if ((Sel & (sizeof(KGDTENTRY) - 1)) ||
- (Sel < sizeof(KGDTENTRY)) ||
- (Sel + sizeof(KGDTENTRY) - 1 > Gdtr.Limit))
- return FALSE;
-
- if (!NT_SUCCESS(KdbpSafeReadMemory(&Desc,
- (PVOID)(Gdtr.Base + Sel),
- sizeof(KGDTENTRY))))
- return FALSE;
-
- if (Desc.HighWord.Bits.Type != 0xB)
- return FALSE;
-
- Tss = (PKTSS)(ULONG_PTR)(Desc.BaseLow |
- Desc.HighWord.Bytes.BaseMid << 16 |
- Desc.HighWord.Bytes.BaseHi << 24);
-
- if (!NT_SUCCESS(KdbpSafeReadMemory(&Eip,
- (PVOID)&Tss->Eip,
- sizeof(ULONG_PTR))))
- return FALSE;
-
- if (!NT_SUCCESS(KdbpSafeReadMemory(&Ebp,
- (PVOID)&Tss->Ebp,
- sizeof(ULONG_PTR))))
- return FALSE;
-
- TrapFrame->Eip = Eip;
- TrapFrame->Ebp = Ebp;
- return TRUE;
-}
-
-VOID __cdecl KiTrap02(VOID);
-VOID FASTCALL KiTrap03Handler(IN PKTRAP_FRAME);
-VOID __cdecl KiTrap08(VOID);
-VOID __cdecl KiTrap09(VOID);
-
-static BOOLEAN
-KdbpInNmiOrDoubleFaultHandler(
- ULONG_PTR Address)
-{
- return (Address > (ULONG_PTR)KiTrap02 && Address < (ULONG_PTR)KiTrap03Handler) ||
- (Address > (ULONG_PTR)KiTrap08 && Address < (ULONG_PTR)KiTrap09);
-}
-
-/*!\brief Displays a backtrace.
- */
-static BOOLEAN
-KdbpCmdBackTrace(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG ul;
- ULONGLONG Result = 0;
- ULONG_PTR Frame = KdbCurrentTrapFrame->Tf.Ebp;
- ULONG_PTR Address;
- KTRAP_FRAME TrapFrame;
-
- if (Argc >= 2)
- {
- /* Check for [L count] part */
- ul = 0;
-
- if (strcmp(Argv[Argc-2], "L") == 0)
- {
- ul = strtoul(Argv[Argc-1], NULL, 0);
- if (ul > 0)
- {
- Argc -= 2;
- }
- }
- else if (Argv[Argc-1][0] == 'L')
- {
- ul = strtoul(Argv[Argc-1] + 1, NULL, 0);
- if (ul > 0)
- {
- Argc--;
- }
- }
-
- /* Put the remaining arguments back together */
- Argc--;
- for (ul = 1; ul < Argc; ul++)
- {
- Argv[ul][strlen(Argv[ul])] = ' ';
- }
- Argc++;
- }
-
- /* Check if frame addr or thread id is given. */
- if (Argc > 1)
- {
- if (Argv[1][0] == '*')
- {
- Argv[1]++;
-
- /* Evaluate the expression */
- if (!KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result))
- return TRUE;
-
- if (Result > (ULONGLONG)(~((ULONG_PTR)0)))
- KdbpPrint("Warning: Address %I64x is beeing truncated\n",Result);
-
- Frame = (ULONG_PTR)Result;
- }
- else
- {
- KdbpPrint("Thread backtrace not supported yet!\n");
- return TRUE;
- }
- }
- else
- {
- KdbpPrint("Eip:\n");
-
- /* Try printing the function at EIP */
- if (!KdbSymPrintAddress((PVOID)KdbCurrentTrapFrame->Tf.Eip, &KdbCurrentTrapFrame->Tf))
- KdbpPrint("<%08x>\n", KdbCurrentTrapFrame->Tf.Eip);
- else
- KdbpPrint("\n");
- }
-
- TrapFrame = KdbCurrentTrapFrame->Tf;
- KdbpPrint("Frames:\n");
-
- for (;;)
- {
- BOOLEAN GotNextFrame;
-
- if (Frame == 0)
- break;
-
- if (!NT_SUCCESS(KdbpSafeReadMemory(&Address, (PVOID)(Frame + sizeof(ULONG_PTR)), sizeof (ULONG_PTR))))
- {
- KdbpPrint("Couldn't access memory at 0x%p!\n", Frame + sizeof(ULONG_PTR));
- break;
- }
-
- if ((GotNextFrame = NT_SUCCESS(KdbpSafeReadMemory(&Frame, (PVOID)Frame, sizeof (ULONG_PTR)))))
- TrapFrame.Ebp = Frame;
-
- /* Print the location of the call instruction */
- if (!KdbSymPrintAddress((PVOID)(Address - 5), &TrapFrame))
- KdbpPrint("<%08x>\n", Address);
- else
- KdbpPrint("\n");
-
- if (KdbOutputAborted) break;
-
- if (Address == 0)
- break;
-
- if (KdbpInNmiOrDoubleFaultHandler(Address))
- {
- if ((GotNextFrame = KdbpTrapFrameFromPrevTss(&TrapFrame)))
- {
- Address = TrapFrame.Eip;
- Frame = TrapFrame.Ebp;
-
- if (!KdbSymPrintAddress((PVOID)Address, &TrapFrame))
- KdbpPrint("<%08x>\n", Address);
- else
- KdbpPrint("\n");
- }
- }
-
- if (!GotNextFrame)
- {
- KdbpPrint("Couldn't access memory at 0x%p!\n", Frame);
- break;
- }
- }
-
- return TRUE;
-}
-
-/*!\brief Continues execution of the system/leaves KDB.
- */
-static BOOLEAN
-KdbpCmdContinue(
- ULONG Argc,
- PCHAR Argv[])
-{
- /* Exit the main loop */
- return FALSE;
-}
-
-/*!\brief Continues execution of the system/leaves KDB.
- */
-static BOOLEAN
-KdbpCmdStep(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG Count = 1;
-
- if (Argc > 1)
- {
- Count = strtoul(Argv[1], NULL, 0);
- if (Count == 0)
- {
- KdbpPrint("%s: Integer argument required\n", Argv[0]);
- return TRUE;
- }
- }
-
- if (Argv[0][0] == 'n')
- KdbSingleStepOver = TRUE;
- else
- KdbSingleStepOver = FALSE;
-
- /* Set the number of single steps and return to the interrupted code. */
- KdbNumSingleSteps = Count;
-
- return FALSE;
-}
-
-/*!\brief Lists breakpoints.
- */
-static BOOLEAN
-KdbpCmdBreakPointList(
- ULONG Argc,
- PCHAR Argv[])
-{
- LONG l;
- ULONG_PTR Address = 0;
- KDB_BREAKPOINT_TYPE Type = 0;
- KDB_ACCESS_TYPE AccessType = 0;
- UCHAR Size = 0;
- UCHAR DebugReg = 0;
- BOOLEAN Enabled = FALSE;
- BOOLEAN Global = FALSE;
- PEPROCESS Process = NULL;
- PCHAR str1, str2, ConditionExpr, GlobalOrLocal;
- CHAR Buffer[20];
-
- l = KdbpGetNextBreakPointNr(0);
- if (l < 0)
- {
- KdbpPrint("No breakpoints.\n");
- return TRUE;
- }
-
- KdbpPrint("Breakpoints:\n");
- do
- {
- if (!KdbpGetBreakPointInfo(l, &Address, &Type, &Size, &AccessType, &DebugReg,
- &Enabled, &Global, &Process, &ConditionExpr))
- {
- continue;
- }
-
- if (l == KdbLastBreakPointNr)
- {
- str1 = "\x1b[1m*";
- str2 = "\x1b[0m";
- }
- else
- {
- str1 = " ";
- str2 = "";
- }
-
- if (Global)
- {
- GlobalOrLocal = " global";
- }
- else
- {
- GlobalOrLocal = Buffer;
- sprintf(Buffer, " PID 0x%08lx",
- (ULONG)(Process ? Process->UniqueProcessId : INVALID_HANDLE_VALUE));
- }
-
- if (Type == KdbBreakPointSoftware || Type == KdbBreakPointTemporary)
- {
- KdbpPrint(" %s%03d BPX 0x%08x%s%s%s%s%s\n",
- str1, l, Address,
- Enabled ? "" : " disabled",
- GlobalOrLocal,
- ConditionExpr ? " IF " : "",
- ConditionExpr ? ConditionExpr : "",
- str2);
- }
- else if (Type == KdbBreakPointHardware)
- {
- if (!Enabled)
- {
- KdbpPrint(" %s%03d BPM 0x%08x %-5s %-5s disabled%s%s%s%s\n", str1, l, Address,
- KDB_ACCESS_TYPE_TO_STRING(AccessType),
- Size == 1 ? "byte" : (Size == 2 ? "word" : "dword"),
- GlobalOrLocal,
- ConditionExpr ? " IF " : "",
- ConditionExpr ? ConditionExpr : "",
- str2);
- }
- else
- {
- KdbpPrint(" %s%03d BPM 0x%08x %-5s %-5s DR%d%s%s%s%s\n", str1, l, Address,
- KDB_ACCESS_TYPE_TO_STRING(AccessType),
- Size == 1 ? "byte" : (Size == 2 ? "word" : "dword"),
- DebugReg,
- GlobalOrLocal,
- ConditionExpr ? " IF " : "",
- ConditionExpr ? ConditionExpr : "",
- str2);
- }
- }
- }
- while ((l = KdbpGetNextBreakPointNr(l+1)) >= 0);
-
- return TRUE;
-}
-
-/*!\brief Enables, disables or clears a breakpoint.
- */
-static BOOLEAN
-KdbpCmdEnableDisableClearBreakPoint(
- ULONG Argc,
- PCHAR Argv[])
-{
- PCHAR pend;
- ULONG BreakPointNr;
-
- if (Argc < 2)
- {
- KdbpPrint("%s: argument required\n", Argv[0]);
- return TRUE;
- }
-
- pend = Argv[1];
- BreakPointNr = strtoul(Argv[1], &pend, 0);
- if (pend == Argv[1] || *pend != '\0')
- {
- KdbpPrint("%s: integer argument required\n", Argv[0]);
- return TRUE;
- }
-
- if (Argv[0][1] == 'e') /* enable */
- {
- KdbpEnableBreakPoint(BreakPointNr, NULL);
- }
- else if (Argv [0][1] == 'd') /* disable */
- {
- KdbpDisableBreakPoint(BreakPointNr, NULL);
- }
- else /* clear */
- {
- ASSERT(Argv[0][1] == 'c');
- KdbpDeleteBreakPoint(BreakPointNr, NULL);
- }
-
- return TRUE;
-}
-
-/*!\brief Sets a software or hardware (memory) breakpoint at the given address.
- */
-static BOOLEAN
-KdbpCmdBreakPoint(ULONG Argc, PCHAR Argv[])
-{
- ULONGLONG Result = 0;
- ULONG_PTR Address;
- KDB_BREAKPOINT_TYPE Type;
- UCHAR Size = 0;
- KDB_ACCESS_TYPE AccessType = 0;
- ULONG AddressArgIndex, i;
- LONG ConditionArgIndex;
- BOOLEAN Global = TRUE;
-
- if (Argv[0][2] == 'x') /* software breakpoint */
- {
- if (Argc < 2)
- {
- KdbpPrint("bpx: Address argument required.\n");
- return TRUE;
- }
-
- AddressArgIndex = 1;
- Type = KdbBreakPointSoftware;
- }
- else /* memory breakpoint */
- {
- ASSERT(Argv[0][2] == 'm');
-
- if (Argc < 2)
- {
- KdbpPrint("bpm: Access type argument required (one of r, w, rw, x)\n");
- return TRUE;
- }
-
- if (_stricmp(Argv[1], "x") == 0)
- AccessType = KdbAccessExec;
- else if (_stricmp(Argv[1], "r") == 0)
- AccessType = KdbAccessRead;
- else if (_stricmp(Argv[1], "w") == 0)
- AccessType = KdbAccessWrite;
- else if (_stricmp(Argv[1], "rw") == 0)
- AccessType = KdbAccessReadWrite;
- else
- {
- KdbpPrint("bpm: Unknown access type '%s'\n", Argv[1]);
- return TRUE;
- }
-
- if (Argc < 3)
- {
- KdbpPrint("bpm: %s argument required.\n", AccessType == KdbAccessExec ? "Address" : "Memory size");
- return TRUE;
- }
-
- AddressArgIndex = 3;
- if (_stricmp(Argv[2], "byte") == 0)
- Size = 1;
- else if (_stricmp(Argv[2], "word") == 0)
- Size = 2;
- else if (_stricmp(Argv[2], "dword") == 0)
- Size = 4;
- else if (AccessType == KdbAccessExec)
- {
- Size = 1;
- AddressArgIndex--;
- }
- else
- {
- KdbpPrint("bpm: Unknown memory size '%s'\n", Argv[2]);
- return TRUE;
- }
-
- if (Argc <= AddressArgIndex)
- {
- KdbpPrint("bpm: Address argument required.\n");
- return TRUE;
- }
-
- Type = KdbBreakPointHardware;
- }
-
- /* Put the arguments back together */
- ConditionArgIndex = -1;
- for (i = AddressArgIndex; i < (Argc-1); i++)
- {
- if (strcmp(Argv[i+1], "IF") == 0) /* IF found */
- {
- ConditionArgIndex = i + 2;
- if ((ULONG)ConditionArgIndex >= Argc)
- {
- KdbpPrint("%s: IF requires condition expression.\n", Argv[0]);
- return TRUE;
- }
-
- for (i = ConditionArgIndex; i < (Argc-1); i++)
- Argv[i][strlen(Argv[i])] = ' ';
-
- break;
- }
-
- Argv[i][strlen(Argv[i])] = ' ';
- }
-
- /* Evaluate the address expression */
- if (!KdbpEvaluateExpression(Argv[AddressArgIndex],
- sizeof("kdb:> ")-1 + (Argv[AddressArgIndex]-Argv[0]),
- &Result))
- {
- return TRUE;
- }
-
- if (Result > (ULONGLONG)(~((ULONG_PTR)0)))
- KdbpPrint("%s: Warning: Address %I64x is beeing truncated\n", Argv[0],Result);
-
- Address = (ULONG_PTR)Result;
-
- KdbpInsertBreakPoint(Address, Type, Size, AccessType,
- (ConditionArgIndex < 0) ? NULL : Argv[ConditionArgIndex],
- Global, NULL);
-
- return TRUE;
-}
-
-/*!\brief Lists threads or switches to another thread context.
- */
-static BOOLEAN
-KdbpCmdThread(
- ULONG Argc,
- PCHAR Argv[])
-{
- PLIST_ENTRY Entry;
- PETHREAD Thread = NULL;
- PEPROCESS Process = NULL;
- BOOLEAN ReferencedThread = FALSE, ReferencedProcess = FALSE;
- PULONG Esp;
- PULONG Ebp;
- ULONG Eip;
- ULONG ul = 0;
- PCHAR State, pend, str1, str2;
- static const PCHAR ThreadStateToString[DeferredReady+1] =
- {
- "Initialized", "Ready", "Running",
- "Standby", "Terminated", "Waiting",
- "Transition", "DeferredReady"
- };
-
- ASSERT(KdbCurrentProcess);
-
- if (Argc >= 2 && _stricmp(Argv[1], "list") == 0)
- {
- Process = KdbCurrentProcess;
-
- if (Argc >= 3)
- {
- ul = strtoul(Argv[2], &pend, 0);
- if (Argv[2] == pend)
- {
- KdbpPrint("thread: '%s' is not a valid process id!\n", Argv[2]);
- return TRUE;
- }
-
- if (!NT_SUCCESS(PsLookupProcessByProcessId((PVOID)ul, &Process)))
- {
- KdbpPrint("thread: Invalid process id!\n");
- return TRUE;
- }
-
- /* Remember our reference */
- ReferencedProcess = TRUE;
- }
-
- Entry = Process->ThreadListHead.Flink;
- if (Entry == &Process->ThreadListHead)
- {
- if (Argc >= 3)
- KdbpPrint("No threads in process 0x%08x!\n", ul);
- else
- KdbpPrint("No threads in current process!\n");
-
- if (ReferencedProcess)
- ObDereferenceObject(Process);
-
- return TRUE;
- }
-
- KdbpPrint(" TID State Prior. Affinity EBP EIP\n");
- do
- {
- Thread = CONTAINING_RECORD(Entry, ETHREAD, ThreadListEntry);
-
- if (Thread == KdbCurrentThread)
- {
- str1 = "\x1b[1m*";
- str2 = "\x1b[0m";
- }
- else
- {
- str1 = " ";
- str2 = "";
- }
-
- if (!Thread->Tcb.InitialStack)
- {
- /* Thread has no kernel stack (probably terminated) */
- Esp = Ebp = NULL;
- Eip = 0;
- }
- else if (Thread->Tcb.TrapFrame)
- {
- if (Thread->Tcb.TrapFrame->PreviousPreviousMode == KernelMode)
- Esp = (PULONG)Thread->Tcb.TrapFrame->TempEsp;
- else
- Esp = (PULONG)Thread->Tcb.TrapFrame->HardwareEsp;
-
- Ebp = (PULONG)Thread->Tcb.TrapFrame->Ebp;
- Eip = Thread->Tcb.TrapFrame->Eip;
- }
- else
- {
- Esp = (PULONG)Thread->Tcb.KernelStack;
- Ebp = (PULONG)Esp[4];
- Eip = 0;
-
- if (Ebp) /* FIXME: Should we attach to the process to read Ebp[1]? */
- KdbpSafeReadMemory(&Eip, Ebp + 1, sizeof (Eip));
- }
-
- if (Thread->Tcb.State < (DeferredReady + 1))
- State = ThreadStateToString[Thread->Tcb.State];
- else
- State = "Unknown";
-
- KdbpPrint(" %s0x%08x %-11s %3d 0x%08x 0x%08x 0x%08x%s\n",
- str1,
- Thread->Cid.UniqueThread,
- State,
- Thread->Tcb.Priority,
- Thread->Tcb.Affinity,
- Ebp,
- Eip,
- str2);
-
- Entry = Entry->Flink;
- }
- while (Entry != &Process->ThreadListHead);
-
- /* Release our reference, if any */
- if (ReferencedProcess)
- ObDereferenceObject(Process);
- }
- else if (Argc >= 2 && _stricmp(Argv[1], "attach") == 0)
- {
- if (Argc < 3)
- {
- KdbpPrint("thread attach: thread id argument required!\n");
- return TRUE;
- }
-
- ul = strtoul(Argv[2], &pend, 0);
- if (Argv[2] == pend)
- {
- KdbpPrint("thread attach: '%s' is not a valid thread id!\n", Argv[2]);
- return TRUE;
- }
-
- if (!KdbpAttachToThread((PVOID)ul))
- {
- return TRUE;
- }
-
- KdbpPrint("Attached to thread 0x%08x.\n", ul);
- }
- else
- {
- Thread = KdbCurrentThread;
-
- if (Argc >= 2)
- {
- ul = strtoul(Argv[1], &pend, 0);
- if (Argv[1] == pend)
- {
- KdbpPrint("thread: '%s' is not a valid thread id!\n", Argv[1]);
- return TRUE;
- }
-
- if (!NT_SUCCESS(PsLookupThreadByThreadId((PVOID)ul, &Thread)))
- {
- KdbpPrint("thread: Invalid thread id!\n");
- return TRUE;
- }
-
- /* Remember our reference */
- ReferencedThread = TRUE;
- }
-
- if (Thread->Tcb.State < (DeferredReady + 1))
- State = ThreadStateToString[Thread->Tcb.State];
- else
- State = "Unknown";
-
- KdbpPrint("%s"
- " TID: 0x%08x\n"
- " State: %s (0x%x)\n"
- " Priority: %d\n"
- " Affinity: 0x%08x\n"
- " Initial Stack: 0x%08x\n"
- " Stack Limit: 0x%08x\n"
- " Stack Base: 0x%08x\n"
- " Kernel Stack: 0x%08x\n"
- " Trap Frame: 0x%08x\n"
- " NPX State: %s (0x%x)\n",
- (Argc < 2) ? "Current Thread:\n" : "",
- Thread->Cid.UniqueThread,
- State, Thread->Tcb.State,
- Thread->Tcb.Priority,
- Thread->Tcb.Affinity,
- Thread->Tcb.InitialStack,
- Thread->Tcb.StackLimit,
- Thread->Tcb.StackBase,
- Thread->Tcb.KernelStack,
- Thread->Tcb.TrapFrame,
- NPX_STATE_TO_STRING(Thread->Tcb.NpxState), Thread->Tcb.NpxState);
-
- /* Release our reference if we had one */
- if (ReferencedThread)
- ObDereferenceObject(Thread);
- }
-
- return TRUE;
-}
-
-/*!\brief Lists processes or switches to another process context.
- */
-static BOOLEAN
-KdbpCmdProc(
- ULONG Argc,
- PCHAR Argv[])
-{
- PLIST_ENTRY Entry;
- PEPROCESS Process;
- BOOLEAN ReferencedProcess = FALSE;
- PCHAR State, pend, str1, str2;
- ULONG ul;
- extern LIST_ENTRY PsActiveProcessHead;
-
- if (Argc >= 2 && _stricmp(Argv[1], "list") == 0)
- {
- Entry = PsActiveProcessHead.Flink;
- if (!Entry || Entry == &PsActiveProcessHead)
- {
- KdbpPrint("No processes in the system!\n");
- return TRUE;
- }
-
- KdbpPrint(" PID State Filename\n");
- do
- {
- Process = CONTAINING_RECORD(Entry, EPROCESS, ActiveProcessLinks);
-
- if (Process == KdbCurrentProcess)
- {
- str1 = "\x1b[1m*";
- str2 = "\x1b[0m";
- }
- else
- {
- str1 = " ";
- str2 = "";
- }
-
- State = ((Process->Pcb.State == ProcessInMemory) ? "In Memory" :
- ((Process->Pcb.State == ProcessOutOfMemory) ? "Out of Memory" : "In Transition"));
-
- KdbpPrint(" %s0x%08x %-10s %s%s\n",
- str1,
- Process->UniqueProcessId,
- State,
- Process->ImageFileName,
- str2);
-
- Entry = Entry->Flink;
- }
- while(Entry != &PsActiveProcessHead);
- }
- else if (Argc >= 2 && _stricmp(Argv[1], "attach") == 0)
- {
- if (Argc < 3)
- {
- KdbpPrint("process attach: process id argument required!\n");
- return TRUE;
- }
-
- ul = strtoul(Argv[2], &pend, 0);
- if (Argv[2] == pend)
- {
- KdbpPrint("process attach: '%s' is not a valid process id!\n", Argv[2]);
- return TRUE;
- }
-
- if (!KdbpAttachToProcess((PVOID)ul))
- {
- return TRUE;
- }
-
- KdbpPrint("Attached to process 0x%08x, thread 0x%08x.\n", (ULONG)ul,
- (ULONG)KdbCurrentThread->Cid.UniqueThread);
- }
- else
- {
- Process = KdbCurrentProcess;
-
- if (Argc >= 2)
- {
- ul = strtoul(Argv[1], &pend, 0);
- if (Argv[1] == pend)
- {
- KdbpPrint("proc: '%s' is not a valid process id!\n", Argv[1]);
- return TRUE;
- }
-
- if (!NT_SUCCESS(PsLookupProcessByProcessId((PVOID)ul, &Process)))
- {
- KdbpPrint("proc: Invalid process id!\n");
- return TRUE;
- }
-
- /* Remember our reference */
- ReferencedProcess = TRUE;
- }
-
- State = ((Process->Pcb.State == ProcessInMemory) ? "In Memory" :
- ((Process->Pcb.State == ProcessOutOfMemory) ? "Out of Memory" : "In Transition"));
- KdbpPrint("%s"
- " PID: 0x%08x\n"
- " State: %s (0x%x)\n"
- " Image Filename: %s\n",
- (Argc < 2) ? "Current process:\n" : "",
- Process->UniqueProcessId,
- State, Process->Pcb.State,
- Process->ImageFileName);
-
- /* Release our reference, if any */
- if (ReferencedProcess)
- ObDereferenceObject(Process);
- }
-
- return TRUE;
-}
-
-/*!\brief Lists loaded modules or the one containing the specified address.
- */
-static BOOLEAN
-KdbpCmdMod(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONGLONG Result = 0;
- ULONG_PTR Address;
- PLDR_DATA_TABLE_ENTRY LdrEntry;
- BOOLEAN DisplayOnlyOneModule = FALSE;
- INT i = 0;
-
- if (Argc >= 2)
- {
- /* Put the arguments back together */
- Argc--;
- while (--Argc >= 1)
- Argv[Argc][strlen(Argv[Argc])] = ' ';
-
- /* Evaluate the expression */
- if (!KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result))
- {
- return TRUE;
- }
-
- if (Result > (ULONGLONG)(~((ULONG_PTR)0)))
- KdbpPrint("%s: Warning: Address %I64x is beeing truncated\n", Argv[0],Result);
-
- Address = (ULONG_PTR)Result;
-
- if (!KdbpSymFindModule((PVOID)Address, NULL, -1, &LdrEntry))
- {
- KdbpPrint("No module containing address 0x%p found!\n", Address);
- return TRUE;
- }
-
- DisplayOnlyOneModule = TRUE;
- }
- else
- {
- if (!KdbpSymFindModule(NULL, NULL, 0, &LdrEntry))
- {
- ULONG_PTR ntoskrnlBase = ((ULONG_PTR)KdbpCmdMod) & 0xfff00000;
- KdbpPrint(" Base Size Name\n");
- KdbpPrint(" %08x %08x %s\n", ntoskrnlBase, 0, "ntoskrnl.exe");
- return TRUE;
- }
-
- i = 1;
- }
-
- KdbpPrint(" Base Size Name\n");
- for (;;)
- {
- KdbpPrint(" %08x %08x %wZ\n", LdrEntry->DllBase, LdrEntry->SizeOfImage, &LdrEntry->BaseDllName);
-
- if(DisplayOnlyOneModule || !KdbpSymFindModule(NULL, NULL, i++, &LdrEntry))
- break;
- }
-
- return TRUE;
-}
-
-/*!\brief Displays GDT, LDT or IDTd.
- */
-static BOOLEAN
-KdbpCmdGdtLdtIdt(
- ULONG Argc,
- PCHAR Argv[])
-{
- KDESCRIPTOR Reg;
- ULONG SegDesc[2];
- ULONG SegBase;
- ULONG SegLimit;
- PCHAR SegType;
- USHORT SegSel;
- UCHAR Type, Dpl;
- INT i;
- ULONG ul;
-
- if (Argv[0][0] == 'i')
- {
- /* Read IDTR */
- __sidt(&Reg.Limit);
-
- if (Reg.Limit < 7)
- {
- KdbpPrint("Interrupt descriptor table is empty.\n");
- return TRUE;
- }
-
- KdbpPrint("IDT Base: 0x%08x Limit: 0x%04x\n", Reg.Base, Reg.Limit);
- KdbpPrint(" Idx Type Seg. Sel. Offset DPL\n");
-
- for (i = 0; (i + sizeof(SegDesc) - 1) <= Reg.Limit; i += 8)
- {
- if (!NT_SUCCESS(KdbpSafeReadMemory(SegDesc, (PVOID)(Reg.Base + i), sizeof(SegDesc))))
- {
- KdbpPrint("Couldn't access memory at 0x%08x!\n", Reg.Base + i);
- return TRUE;
- }
-
- Dpl = ((SegDesc[1] >> 13) & 3);
- if ((SegDesc[1] & 0x1f00) == 0x0500) /* Task gate */
- SegType = "TASKGATE";
- else if ((SegDesc[1] & 0x1fe0) == 0x0e00) /* 32 bit Interrupt gate */
- SegType = "INTGATE32";
- else if ((SegDesc[1] & 0x1fe0) == 0x0600) /* 16 bit Interrupt gate */
- SegType = "INTGATE16";
- else if ((SegDesc[1] & 0x1fe0) == 0x0f00) /* 32 bit Trap gate */
- SegType = "TRAPGATE32";
- else if ((SegDesc[1] & 0x1fe0) == 0x0700) /* 16 bit Trap gate */
- SegType = "TRAPGATE16";
- else
- SegType = "UNKNOWN";
-
- if ((SegDesc[1] & (1 << 15)) == 0) /* not present */
- {
- KdbpPrint(" %03d %-10s [NP] [NP] %02d\n",
- i / 8, SegType, Dpl);
- }
- else if ((SegDesc[1] & 0x1f00) == 0x0500) /* Task gate */
- {
- SegSel = SegDesc[0] >> 16;
- KdbpPrint(" %03d %-10s 0x%04x %02d\n",
- i / 8, SegType, SegSel, Dpl);
- }
- else
- {
- SegSel = SegDesc[0] >> 16;
- SegBase = (SegDesc[1] & 0xffff0000) | (SegDesc[0] & 0x0000ffff);
- KdbpPrint(" %03d %-10s 0x%04x 0x%08x %02d\n",
- i / 8, SegType, SegSel, SegBase, Dpl);
- }
- }
- }
- else
- {
- ul = 0;
-
- if (Argv[0][0] == 'g')
- {
- /* Read GDTR */
- Ke386GetGlobalDescriptorTable(&Reg.Limit);
- i = 8;
- }
- else
- {
- ASSERT(Argv[0][0] == 'l');
-
- /* Read LDTR */
- Reg.Limit = Ke386GetLocalDescriptorTable();
- Reg.Base = 0;
- i = 0;
- ul = 1 << 2;
- }
-
- if (Reg.Limit < 7)
- {
- KdbpPrint("%s descriptor table is empty.\n",
- Argv[0][0] == 'g' ? "Global" : "Local");
- return TRUE;
- }
-
- KdbpPrint("%cDT Base: 0x%08x Limit: 0x%04x\n",
- Argv[0][0] == 'g' ? 'G' : 'L', Reg.Base, Reg.Limit);
- KdbpPrint(" Idx Sel. Type Base Limit DPL Attribs\n");
-
- for (; (i + sizeof(SegDesc) - 1) <= Reg.Limit; i += 8)
- {
- if (!NT_SUCCESS(KdbpSafeReadMemory(SegDesc, (PVOID)(Reg.Base + i), sizeof(SegDesc))))
- {
- KdbpPrint("Couldn't access memory at 0x%08x!\n", Reg.Base + i);
- return TRUE;
- }
-
- Dpl = ((SegDesc[1] >> 13) & 3);
- Type = ((SegDesc[1] >> 8) & 0xf);
-
- SegBase = SegDesc[0] >> 16;
- SegBase |= (SegDesc[1] & 0xff) << 16;
- SegBase |= SegDesc[1] & 0xff000000;
- SegLimit = SegDesc[0] & 0x0000ffff;
- SegLimit |= (SegDesc[1] >> 16) & 0xf;
-
- if ((SegDesc[1] & (1 << 23)) != 0)
- {
- SegLimit *= 4096;
- SegLimit += 4095;
- }
- else
- {
- SegLimit++;
- }
-
- if ((SegDesc[1] & (1 << 12)) == 0) /* System segment */
- {
- switch (Type)
- {
- case 1: SegType = "TSS16(Avl)"; break;
- case 2: SegType = "LDT"; break;
- case 3: SegType = "TSS16(Busy)"; break;
- case 4: SegType = "CALLGATE16"; break;
- case 5: SegType = "TASKGATE"; break;
- case 6: SegType = "INTGATE16"; break;
- case 7: SegType = "TRAPGATE16"; break;
- case 9: SegType = "TSS32(Avl)"; break;
- case 11: SegType = "TSS32(Busy)"; break;
- case 12: SegType = "CALLGATE32"; break;
- case 14: SegType = "INTGATE32"; break;
- case 15: SegType = "INTGATE32"; break;
- default: SegType = "UNKNOWN"; break;
- }
-
- if (!(Type >= 1 && Type <= 3) &&
- Type != 9 && Type != 11)
- {
- SegBase = 0;
- SegLimit = 0;
- }
- }
- else if ((SegDesc[1] & (1 << 11)) == 0) /* Data segment */
- {
- if ((SegDesc[1] & (1 << 22)) != 0)
- SegType = "DATA32";
- else
- SegType = "DATA16";
- }
- else /* Code segment */
- {
- if ((SegDesc[1] & (1 << 22)) != 0)
- SegType = "CODE32";
- else
- SegType = "CODE16";
- }
-
- if ((SegDesc[1] & (1 << 15)) == 0) /* not present */
- {
- KdbpPrint(" %03d 0x%04x %-11s [NP] [NP] %02d NP\n",
- i / 8, i | Dpl | ul, SegType, Dpl);
- }
- else
- {
- KdbpPrint(" %03d 0x%04x %-11s 0x%08x 0x%08x %02d ",
- i / 8, i | Dpl | ul, SegType, SegBase, SegLimit, Dpl);
-
- if ((SegDesc[1] & (1 << 12)) == 0) /* System segment */
- {
- /* FIXME: Display system segment */
- }
- else if ((SegDesc[1] & (1 << 11)) == 0) /* Data segment */
- {
- if ((SegDesc[1] & (1 << 10)) != 0) /* Expand-down */
- KdbpPrint(" E");
-
- KdbpPrint((SegDesc[1] & (1 << 9)) ? " R/W" : " R");
-
- if ((SegDesc[1] & (1 << 8)) != 0)
- KdbpPrint(" A");
- }
- else /* Code segment */
- {
- if ((SegDesc[1] & (1 << 10)) != 0) /* Conforming */
- KdbpPrint(" C");
-
- KdbpPrint((SegDesc[1] & (1 << 9)) ? " R/X" : " X");
-
- if ((SegDesc[1] & (1 << 8)) != 0)
- KdbpPrint(" A");
- }
-
- if ((SegDesc[1] & (1 << 20)) != 0)
- KdbpPrint(" AVL");
-
- KdbpPrint("\n");
- }
- }
- }
-
- return TRUE;
-}
-
-/*!\brief Displays the KPCR
- */
-static BOOLEAN
-KdbpCmdPcr(
- ULONG Argc,
- PCHAR Argv[])
-{
- PKIPCR Pcr = (PKIPCR)KeGetPcr();
-
- KdbpPrint("Current PCR is at 0x%08x.\n", (INT)Pcr);
- KdbpPrint(" Tib.ExceptionList: 0x%08x\n"
- " Tib.StackBase: 0x%08x\n"
- " Tib.StackLimit: 0x%08x\n"
- " Tib.SubSystemTib: 0x%08x\n"
- " Tib.FiberData/Version: 0x%08x\n"
- " Tib.ArbitraryUserPointer: 0x%08x\n"
- " Tib.Self: 0x%08x\n"
- " Self: 0x%08x\n"
- " PCRCB: 0x%08x\n"
- " Irql: 0x%02x\n"
- " IRR: 0x%08x\n"
- " IrrActive: 0x%08x\n"
- " IDR: 0x%08x\n"
- " KdVersionBlock: 0x%08x\n"
- " IDT: 0x%08x\n"
- " GDT: 0x%08x\n"
- " TSS: 0x%08x\n"
- " MajorVersion: 0x%04x\n"
- " MinorVersion: 0x%04x\n"
- " SetMember: 0x%08x\n"
- " StallScaleFactor: 0x%08x\n"
- " Number: 0x%02x\n"
- " L2CacheAssociativity: 0x%02x\n"
- " VdmAlert: 0x%08x\n"
- " L2CacheSize: 0x%08x\n"
- " InterruptMode: 0x%08x\n",
- Pcr->NtTib.ExceptionList, Pcr->NtTib.StackBase, Pcr->NtTib.StackLimit,
- Pcr->NtTib.SubSystemTib, Pcr->NtTib.FiberData, Pcr->NtTib.ArbitraryUserPointer,
- Pcr->NtTib.Self, Pcr->Self, Pcr->Prcb, Pcr->Irql, Pcr->IRR, Pcr->IrrActive,
- Pcr->IDR, Pcr->KdVersionBlock, Pcr->IDT, Pcr->GDT, Pcr->TSS,
- Pcr->MajorVersion, Pcr->MinorVersion, Pcr->SetMember, Pcr->StallScaleFactor,
- Pcr->Number, Pcr->SecondLevelCacheAssociativity,
- Pcr->VdmAlert, Pcr->SecondLevelCacheSize, Pcr->InterruptMode);
-
- return TRUE;
-}
-
-/*!\brief Displays the TSS
- */
-static BOOLEAN
-KdbpCmdTss(
- ULONG Argc,
- PCHAR Argv[])
-{
- KTSS *Tss = KeGetPcr()->TSS;
-
- KdbpPrint("Current TSS is at 0x%08x.\n", (INT)Tss);
- KdbpPrint(" Eip: 0x%08x\n"
- " Es: 0x%04x\n"
- " Cs: 0x%04x\n"
- " Ss: 0x%04x\n"
- " Ds: 0x%04x\n"
- " Fs: 0x%04x\n"
- " Gs: 0x%04x\n"
- " IoMapBase: 0x%04x\n",
- Tss->Eip, Tss->Es, Tss->Cs, Tss->Ds, Tss->Fs, Tss->Gs, Tss->IoMapBase);
-
- return TRUE;
-}
-
-/*!\brief Bugchecks the system.
- */
-static BOOLEAN
-KdbpCmdBugCheck(
- ULONG Argc,
- PCHAR Argv[])
-{
- /* Set the flag and quit looping */
- KdbpBugCheckRequested = TRUE;
-
- return FALSE;
-}
-
-static BOOLEAN
-KdbpCmdReboot(
- ULONG Argc,
- PCHAR Argv[])
-{
- /* Reboot immediately (we do not return) */
- HalReturnToFirmware(HalRebootRoutine);
- return FALSE;
-}
-
-
-VOID
-KdbpPager(
- IN PCHAR Buffer,
- IN ULONG BufLength);
-
-/*!\brief Display debug messages on screen, with paging.
- *
- * Keys for per-page view: Home, End, PageUp, Arrow Up, PageDown,
- * all others are as PageDown.
- */
-static BOOLEAN
-KdbpCmdDmesg(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG beg, end;
-
- KdbpIsInDmesgMode = TRUE; /* Toggle logging flag */
- if (!KdpDmesgBuffer)
- {
- KdbpPrint("Dmesg: error, buffer is not allocated! /DEBUGPORT=SCREEN kernel param required for dmesg.\n");
- return TRUE;
- }
-
- KdbpPrint("*** Dmesg *** TotalWritten=%lu, BufferSize=%lu, CurrentPosition=%lu\n",
- KdbDmesgTotalWritten, KdpDmesgBufferSize, KdpDmesgCurrentPosition);
-
- // Pass data to the pager:
- end = KdpDmesgCurrentPosition;
- beg = (end + KdpDmesgFreeBytes) % KdpDmesgBufferSize;
-
- // no roll-overs, and overwritten=lost bytes
- if (KdbDmesgTotalWritten <= KdpDmesgBufferSize)
- {
- // show buffer (KdpDmesgBuffer + beg, num)
- KdbpPager(KdpDmesgBuffer, KdpDmesgCurrentPosition);
- }
- else
- {
- // show 2 buffers: (KdpDmesgBuffer + beg, KdpDmesgBufferSize - beg)
- // and: (KdpDmesgBuffer, end)
- KdbpPager(KdpDmesgBuffer + beg, KdpDmesgBufferSize - beg);
- KdbpPrint("*** Dmesg: buffer rollup ***\n");
- KdbpPager(KdpDmesgBuffer, end);
- }
- KdbpPrint("*** Dmesg: end of output ***\n");
-
- KdbpIsInDmesgMode = FALSE; /* Toggle logging flag */
-
- return TRUE;
-}
-
-/*!\brief Sets or displays a config variables value.
- */
-static BOOLEAN
-KdbpCmdSet(
- ULONG Argc,
- PCHAR Argv[])
-{
- LONG l;
- BOOLEAN First;
- PCHAR pend = 0;
- KDB_ENTER_CONDITION ConditionFirst = KdbDoNotEnter;
- KDB_ENTER_CONDITION ConditionLast = KdbDoNotEnter;
-
- static const PCHAR ExceptionNames[21] =
- {
- "ZERODEVIDE", "DEBUGTRAP", "NMI", "INT3", "OVERFLOW", "BOUND", "INVALIDOP",
- "NOMATHCOP", "DOUBLEFAULT", "RESERVED(9)", "INVALIDTSS", "SEGMENTNOTPRESENT",
- "STACKFAULT", "GPF", "PAGEFAULT", "RESERVED(15)", "MATHFAULT", "ALIGNMENTCHECK",
- "MACHINECHECK", "SIMDFAULT", "OTHERS"
- };
-
- if (Argc == 1)
- {
- KdbpPrint("Available settings:\n");
- KdbpPrint(" syntax [intel|at&t]\n");
- KdbpPrint(" condition [exception|*] [first|last] [never|always|kmode|umode]\n");
- KdbpPrint(" break_on_module_load [true|false]\n");
- }
- else if (strcmp(Argv[1], "syntax") == 0)
- {
- if (Argc == 2)
- {
- KdbpPrint("syntax = %s\n", KdbUseIntelSyntax ? "intel" : "at&t");
- }
- else if (Argc >= 3)
- {
- if (_stricmp(Argv[2], "intel") == 0)
- KdbUseIntelSyntax = TRUE;
- else if (_stricmp(Argv[2], "at&t") == 0)
- KdbUseIntelSyntax = FALSE;
- else
- KdbpPrint("Unknown syntax '%s'.\n", Argv[2]);
- }
- }
- else if (strcmp(Argv[1], "condition") == 0)
- {
- if (Argc == 2)
- {
- KdbpPrint("Conditions: (First) (Last)\n");
- for (l = 0; l < RTL_NUMBER_OF(ExceptionNames) - 1; l++)
- {
- if (!ExceptionNames[l])
- continue;
-
- if (!KdbpGetEnterCondition(l, TRUE, &ConditionFirst))
- ASSERT(0);
-
- if (!KdbpGetEnterCondition(l, FALSE, &ConditionLast))
- ASSERT(0);
-
- KdbpPrint(" #%02d %-20s %-8s %-8s\n", l, ExceptionNames[l],
- KDB_ENTER_CONDITION_TO_STRING(ConditionFirst),
- KDB_ENTER_CONDITION_TO_STRING(ConditionLast));
- }
-
- ASSERT(l == (RTL_NUMBER_OF(ExceptionNames) - 1));
- KdbpPrint(" %-20s %-8s %-8s\n", ExceptionNames[l],
- KDB_ENTER_CONDITION_TO_STRING(ConditionFirst),
- KDB_ENTER_CONDITION_TO_STRING(ConditionLast));
- }
- else
- {
- if (Argc >= 5 && strcmp(Argv[2], "*") == 0) /* Allow * only when setting condition */
- {
- l = -1;
- }
- else
- {
- l = strtoul(Argv[2], &pend, 0);
-
- if (Argv[2] == pend)
- {
- for (l = 0; l < RTL_NUMBER_OF(ExceptionNames); l++)
- {
- if (!ExceptionNames[l])
- continue;
-
- if (_stricmp(ExceptionNames[l], Argv[2]) == 0)
- break;
- }
- }
-
- if (l >= RTL_NUMBER_OF(ExceptionNames))
- {
- KdbpPrint("Unknown exception '%s'.\n", Argv[2]);
- return TRUE;
- }
- }
-
- if (Argc > 4)
- {
- if (_stricmp(Argv[3], "first") == 0)
- First = TRUE;
- else if (_stricmp(Argv[3], "last") == 0)
- First = FALSE;
- else
- {
- KdbpPrint("set condition: second argument must be 'first' or 'last'\n");
- return TRUE;
- }
-
- if (_stricmp(Argv[4], "never") == 0)
- ConditionFirst = KdbDoNotEnter;
- else if (_stricmp(Argv[4], "always") == 0)
- ConditionFirst = KdbEnterAlways;
- else if (_stricmp(Argv[4], "umode") == 0)
- ConditionFirst = KdbEnterFromUmode;
- else if (_stricmp(Argv[4], "kmode") == 0)
- ConditionFirst = KdbEnterFromKmode;
- else
- {
- KdbpPrint("set condition: third argument must be 'never', 'always', 'umode' or 'kmode'\n");
- return TRUE;
- }
-
- if (!KdbpSetEnterCondition(l, First, ConditionFirst))
- {
- if (l >= 0)
- KdbpPrint("Couldn't change condition for exception #%02d\n", l);
- else
- KdbpPrint("Couldn't change condition for all exceptions\n", l);
- }
- }
- else /* Argc >= 3 */
- {
- if (!KdbpGetEnterCondition(l, TRUE, &ConditionFirst))
- ASSERT(0);
-
- if (!KdbpGetEnterCondition(l, FALSE, &ConditionLast))
- ASSERT(0);
-
- if (l < (RTL_NUMBER_OF(ExceptionNames) - 1))
- {
- KdbpPrint("Condition for exception #%02d (%s): FirstChance %s LastChance %s\n",
- l, ExceptionNames[l],
- KDB_ENTER_CONDITION_TO_STRING(ConditionFirst),
- KDB_ENTER_CONDITION_TO_STRING(ConditionLast));
- }
- else
- {
- KdbpPrint("Condition for all other exceptions: FirstChance %s LastChance %s\n",
- KDB_ENTER_CONDITION_TO_STRING(ConditionFirst),
- KDB_ENTER_CONDITION_TO_STRING(ConditionLast));
- }
- }
- }
- }
- else if (strcmp(Argv[1], "break_on_module_load") == 0)
- {
- if (Argc == 2)
- KdbpPrint("break_on_module_load = %s\n", KdbBreakOnModuleLoad ? "enabled" : "disabled");
- else if (Argc >= 3)
- {
- if (_stricmp(Argv[2], "enable") == 0 || _stricmp(Argv[2], "enabled") == 0 || _stricmp(Argv[2], "true") == 0)
- KdbBreakOnModuleLoad = TRUE;
- else if (_stricmp(Argv[2], "disable") == 0 || _stricmp(Argv[2], "disabled") == 0 || _stricmp(Argv[2], "false") == 0)
- KdbBreakOnModuleLoad = FALSE;
- else
- KdbpPrint("Unknown setting '%s'.\n", Argv[2]);
- }
- }
- else
- {
- KdbpPrint("Unknown setting '%s'.\n", Argv[1]);
- }
-
- return TRUE;
-}
-
-/*!\brief Displays help screen.
- */
-static BOOLEAN
-KdbpCmdHelp(
- ULONG Argc,
- PCHAR Argv[])
-{
- ULONG i;
-
- KdbpPrint("Kernel debugger commands:\n");
- for (i = 0; i < RTL_NUMBER_OF(KdbDebuggerCommands); i++)
- {
- if (!KdbDebuggerCommands[i].Syntax) /* Command group */
- {
- if (i > 0)
- KdbpPrint("\n");
-
- KdbpPrint("\x1b[7m* %s:\x1b[0m\n", KdbDebuggerCommands[i].Help);
- continue;
- }
-
- KdbpPrint(" %-20s - %s\n",
- KdbDebuggerCommands[i].Syntax,
- KdbDebuggerCommands[i].Help);
- }
-
- return TRUE;
-}
-
-/*!\brief Prints the given string with printf-like formatting.
- *
- * \param Format Format of the string/arguments.
- * \param ... Variable number of arguments matching the format specified in \a Format.
- *
- * \note Doesn't correctly handle \\t and terminal escape sequences when calculating the
- * number of lines required to print a single line from the Buffer in the terminal.
- * Prints maximum 4096 chars, because of its buffer size.
- */
-VOID
-KdbpPrint(
- IN PCHAR Format,
- IN ... OPTIONAL)
-{
- static CHAR Buffer[4096];
- static BOOLEAN TerminalInitialized = FALSE;
- static BOOLEAN TerminalConnected = FALSE;
- static BOOLEAN TerminalReportsSize = TRUE;
- CHAR c = '\0';
- PCHAR p, p2;
- ULONG Length;
- ULONG i, j;
- LONG RowsPrintedByTerminal;
- ULONG ScanCode;
- va_list ap;
-
- /* Check if the user has aborted output of the current command */
- if (KdbOutputAborted)
- return;
-
- /* Initialize the terminal */
- if (!TerminalInitialized)
- {
- DbgPrint("\x1b[7h"); /* Enable linewrap */
-
- /* Query terminal type */
- /*DbgPrint("\x1b[Z");*/
- DbgPrint("\x05");
-
- TerminalInitialized = TRUE;
- Length = 0;
- KeStallExecutionProcessor(100000);
-
- for (;;)
- {
- c = KdbpTryGetCharSerial(5000);
- if (c == -1)
- break;
-
- Buffer[Length++] = c;
- if (Length >= (sizeof (Buffer) - 1))
- break;
- }
-
- Buffer[Length] = '\0';
- if (Length > 0)
- TerminalConnected = TRUE;
- }
-
- /* Get number of rows and columns in terminal */
- if ((KdbNumberOfRowsTerminal < 0) || (KdbNumberOfColsTerminal < 0) ||
- (KdbNumberOfRowsPrinted) == 0) /* Refresh terminal size each time when number of rows printed is 0 */
- {
- if ((KdbDebugState & KD_DEBUG_KDSERIAL) && TerminalConnected && TerminalReportsSize)
- {
- /* Try to query number of rows from terminal. A reply looks like "\x1b[8;24;80t" */
- TerminalReportsSize = FALSE;
- KeStallExecutionProcessor(100000);
- DbgPrint("\x1b[18t");
- c = KdbpTryGetCharSerial(5000);
-
- if (c == KEY_ESC)
- {
- c = KdbpTryGetCharSerial(5000);
- if (c == '[')
- {
- Length = 0;
-
- for (;;)
- {
- c = KdbpTryGetCharSerial(5000);
- if (c == -1)
- break;
-
- Buffer[Length++] = c;
- if (isalpha(c) || Length >= (sizeof (Buffer) - 1))
- break;
- }
-
- Buffer[Length] = '\0';
- if (Buffer[0] == '8' && Buffer[1] == ';')
- {
- for (i = 2; (i < Length) && (Buffer[i] != ';'); i++);
-
- if (Buffer[i] == ';')
- {
- Buffer[i++] = '\0';
-
- /* Number of rows is now at Buffer + 2 and number of cols at Buffer + i */
- KdbNumberOfRowsTerminal = strtoul(Buffer + 2, NULL, 0);
- KdbNumberOfColsTerminal = strtoul(Buffer + i, NULL, 0);
- TerminalReportsSize = TRUE;
- }
- }
- }
- /* Clear further characters */
- while ((c = KdbpTryGetCharSerial(5000)) != -1);
- }
- }
-
- if (KdbNumberOfRowsTerminal <= 0)
- {
- /* Set number of rows to the default. */
- KdbNumberOfRowsTerminal = 23; //24; //Mna.: 23 for SCREEN debugport
- }
- else if (KdbNumberOfColsTerminal <= 0)
- {
- /* Set number of cols to the default. */
- KdbNumberOfColsTerminal = 75; //80; //Mna.: 75 for SCREEN debugport
- }
- }
-
- /* Get the string */
- va_start(ap, Format);
- Length = _vsnprintf(Buffer, sizeof (Buffer) - 1, Format, ap);
- Buffer[Length] = '\0';
- va_end(ap);
-
- p = Buffer;
- while (p[0] != '\0')
- {
- i = strcspn(p, "\n");
-
- /* Calculate the number of lines which will be printed in the terminal
- * when outputting the current line
- */
- if (i > 0)
- RowsPrintedByTerminal = (i + KdbNumberOfColsPrinted - 1) / KdbNumberOfColsTerminal;
- else
- RowsPrintedByTerminal = 0;
-
- if (p[i] == '\n')
- RowsPrintedByTerminal++;
-
- /*DbgPrint("!%d!%d!%d!%d!", KdbNumberOfRowsPrinted, KdbNumberOfColsPrinted, i, RowsPrintedByTerminal);*/
-
- /* Display a prompt if we printed one screen full of text */
- if (KdbNumberOfRowsTerminal > 0 &&
- (LONG)(KdbNumberOfRowsPrinted + RowsPrintedByTerminal) >= KdbNumberOfRowsTerminal)
- {
- KdbRepeatLastCommand = FALSE;
-
- if (KdbNumberOfColsPrinted > 0)
- DbgPrint("\n");
-
- DbgPrint("--- Press q to abort, any other key to continue ---");
- RowsPrintedByTerminal++; /* added by Mna. */
-
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- c = KdbpGetCharSerial();
- else
- c = KdbpGetCharKeyboard(&ScanCode);
-
- if (c == '\r')
- {
- /* Try to read '\n' which might follow '\r' - if \n is not received here
- * it will be interpreted as "return" when the next command should be read.
- */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- c = KdbpTryGetCharSerial(5);
- else
- c = KdbpTryGetCharKeyboard(&ScanCode, 5);
- }
-
- DbgPrint("\n");
- if (c == 'q')
- {
- KdbOutputAborted = TRUE;
- return;
- }
-
- KdbNumberOfRowsPrinted = 0;
- KdbNumberOfColsPrinted = 0;
- }
-
- /* Insert a NUL after the line and print only the current line. */
- if (p[i] == '\n' && p[i + 1] != '\0')
- {
- c = p[i + 1];
- p[i + 1] = '\0';
- }
- else
- {
- c = '\0';
- }
-
- /* Remove escape sequences from the line if there's no terminal connected */
- if (!TerminalConnected)
- {
- while ((p2 = strrchr(p, '\x1b'))) /* Look for escape character */
- {
- if (p2[1] == '[')
- {
- j = 2;
- while (!isalpha(p2[j++]));
- strcpy(p2, p2 + j);
- }
- else
- {
- strcpy(p2, p2 + 1);
- }
- }
- }
-
- DbgPrint("%s", p);
-
- if (c != '\0')
- p[i + 1] = c;
-
- /* Set p to the start of the next line and
- * remember the number of rows/cols printed
- */
- p += i;
- if (p[0] == '\n')
- {
- p++;
- KdbNumberOfColsPrinted = 0;
- }
- else
- {
- ASSERT(p[0] == '\0');
- KdbNumberOfColsPrinted += i;
- }
-
- KdbNumberOfRowsPrinted += RowsPrintedByTerminal;
- }
-}
-
-/** memrchr(), explicitly defined, since was absent in MinGW of RosBE. */
-/*
- * Reverse memchr()
- * Find the last occurrence of 'c' in the buffer 's' of size 'n'.
- */
-void *
-memrchr(const void *s, int c, size_t n)
-{
- const unsigned char *cp;
-
- if (n != 0)
- {
- cp = (unsigned char *)s + n;
- do
- {
- if (*(--cp) == (unsigned char)c)
- return (void *)cp;
- } while (--n != 0);
- }
- return NULL;
-}
-
-/*!\brief Calculate pointer position for N lines upper of current position.
- *
- * \param Buffer Characters buffer to operate on.
- * \param BufLength Buffer size.
- *
- * \note Calculate pointer position for N lines upper of current displaying
- * position within the given buffer.
- *
- * Used by KdbpPager().
- * Now N lines count is hardcoded to KdbNumberOfRowsTerminal.
- */
-PCHAR
-CountOnePageUp(PCHAR Buffer, ULONG BufLength, PCHAR pCurPos)
-{
- PCHAR p;
- // p0 is initial guess of Page Start
- ULONG p0len = KdbNumberOfRowsTerminal * KdbNumberOfColsTerminal;
- PCHAR p0 = pCurPos - p0len;
- PCHAR prev_p = p0, p1;
- ULONG j;
-
- if (pCurPos < Buffer)
- pCurPos = Buffer;
- ASSERT(pCurPos <= Buffer + BufLength);
-
- p = memrchr(p0, '\n', p0len);
- if (NULL == p)
- p = p0;
- for (j = KdbNumberOfRowsTerminal; j--; )
- {
- int linesCnt;
- p1 = memrchr(p0, '\n', p-p0);
- prev_p = p;
- p = p1;
- if (NULL == p)
- {
- p = prev_p;
- if (NULL == p)
- p = p0;
- break;
- }
- linesCnt = (KdbNumberOfColsTerminal+prev_p-p-2) / KdbNumberOfColsTerminal;
- if (linesCnt > 1)
- j -= linesCnt-1;
- }
-
- ASSERT(p != 0);
- ++p;
- return p;
-}
-
-/*!\brief Prints the given string with, page by page.
- *
- * \param Buffer Characters buffer to print.
- * \param BufferLen Buffer size.
- *
- * \note Doesn't correctly handle \\t and terminal escape sequences when calculating the
- * number of lines required to print a single line from the Buffer in the terminal.
- * Maximum length of buffer is limited only by memory size.
- *
- * Note: BufLength should be greater then (KdbNumberOfRowsTerminal * KdbNumberOfColsTerminal).
- *
- */
-VOID
-KdbpPager(
- IN PCHAR Buffer,
- IN ULONG BufLength)
-{
- static CHAR InBuffer[4096];
- static BOOLEAN TerminalInitialized = FALSE;
- static BOOLEAN TerminalConnected = FALSE;
- static BOOLEAN TerminalReportsSize = TRUE;
- CHAR c = '\0';
- PCHAR p, p2;
- ULONG Length;
- ULONG i, j;
- LONG RowsPrintedByTerminal;
- ULONG ScanCode;
-
- if( BufLength == 0)
- return;
-
- /* Check if the user has aborted output of the current command */
- if (KdbOutputAborted)
- return;
-
- /* Initialize the terminal */
- if (!TerminalInitialized)
- {
- DbgPrint("\x1b[7h"); /* Enable linewrap */
-
- /* Query terminal type */
- /*DbgPrint("\x1b[Z");*/
- DbgPrint("\x05");
-
- TerminalInitialized = TRUE;
- Length = 0;
- KeStallExecutionProcessor(100000);
-
- for (;;)
- {
- c = KdbpTryGetCharSerial(5000);
- if (c == -1)
- break;
-
- InBuffer[Length++] = c;
- if (Length >= (sizeof (InBuffer) - 1))
- break;
- }
-
- InBuffer[Length] = '\0';
- if (Length > 0)
- TerminalConnected = TRUE;
- }
-
- /* Get number of rows and columns in terminal */
- if ((KdbNumberOfRowsTerminal < 0) || (KdbNumberOfColsTerminal < 0) ||
- (KdbNumberOfRowsPrinted) == 0) /* Refresh terminal size each time when number of rows printed is 0 */
- {
- if ((KdbDebugState & KD_DEBUG_KDSERIAL) && TerminalConnected && TerminalReportsSize)
- {
- /* Try to query number of rows from terminal. A reply looks like "\x1b[8;24;80t" */
- TerminalReportsSize = FALSE;
- KeStallExecutionProcessor(100000);
- DbgPrint("\x1b[18t");
- c = KdbpTryGetCharSerial(5000);
-
- if (c == KEY_ESC)
- {
- c = KdbpTryGetCharSerial(5000);
- if (c == '[')
- {
- Length = 0;
-
- for (;;)
- {
- c = KdbpTryGetCharSerial(5000);
- if (c == -1)
- break;
-
- InBuffer[Length++] = c;
- if (isalpha(c) || Length >= (sizeof (InBuffer) - 1))
- break;
- }
-
- InBuffer[Length] = '\0';
- if (InBuffer[0] == '8' && InBuffer[1] == ';')
- {
- for (i = 2; (i < Length) && (InBuffer[i] != ';'); i++);
-
- if (Buffer[i] == ';')
- {
- Buffer[i++] = '\0';
-
- /* Number of rows is now at Buffer + 2 and number of cols at Buffer + i */
- KdbNumberOfRowsTerminal = strtoul(InBuffer + 2, NULL, 0);
- KdbNumberOfColsTerminal = strtoul(InBuffer + i, NULL, 0);
- TerminalReportsSize = TRUE;
- }
- }
- }
- /* Clear further characters */
- while ((c = KdbpTryGetCharSerial(5000)) != -1);
- }
- }
-
- if (KdbNumberOfRowsTerminal <= 0)
- {
- /* Set number of rows to the default. */
- KdbNumberOfRowsTerminal = 24;
- }
- else if (KdbNumberOfColsTerminal <= 0)
- {
- /* Set number of cols to the default. */
- KdbNumberOfColsTerminal = 80;
- }
- }
-
- /* Get the string */
- p = Buffer;
-
- while (p[0] != '\0')
- {
- if ( p > Buffer+BufLength)
- {
- DbgPrint("Dmesg: error, p > Buffer+BufLength,d=%d", p - (Buffer+BufLength));
- return;
- }
- i = strcspn(p, "\n");
-
- // Are we out of buffer?
- if (p + i > Buffer + BufLength)
- // Leaving pager function:
- break;
-
- /* Calculate the number of lines which will be printed in the terminal
- * when outputting the current line
- */
- if (i > 0)
- RowsPrintedByTerminal = (i + KdbNumberOfColsPrinted - 1) / KdbNumberOfColsTerminal;
- else
- RowsPrintedByTerminal = 0;
-
- if (p[i] == '\n')
- RowsPrintedByTerminal++;
-
- /*DbgPrint("!%d!%d!%d!%d!", KdbNumberOfRowsPrinted, KdbNumberOfColsPrinted, i, RowsPrintedByTerminal);*/
-
- /* Display a prompt if we printed one screen full of text */
- if (KdbNumberOfRowsTerminal > 0 &&
- (LONG)(KdbNumberOfRowsPrinted + RowsPrintedByTerminal) >= KdbNumberOfRowsTerminal)
- {
- KdbRepeatLastCommand = FALSE;
-
- if (KdbNumberOfColsPrinted > 0)
- DbgPrint("\n");
-
- DbgPrint("--- Press q to abort, e/End,h/Home,u/PgUp, other key/PgDn ---");
- RowsPrintedByTerminal++;
-
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- c = KdbpGetCharSerial();
- else
- c = KdbpGetCharKeyboard(&ScanCode);
-
- if (c == '\r')
- {
- /* Try to read '\n' which might follow '\r' - if \n is not received here
- * it will be interpreted as "return" when the next command should be read.
- */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- c = KdbpTryGetCharSerial(5);
- else
- c = KdbpTryGetCharKeyboard(&ScanCode, 5);
- }
-
- //DbgPrint("\n"); //Consize version: don't show pressed key
- DbgPrint(" '%c'/scan=%04x\n", c, ScanCode); // Shows pressed key
-
- if (c == 'q')
- {
- KdbOutputAborted = TRUE;
- return;
- }
- if ( ScanCode == KEYSC_END || c=='e')
- {
- PCHAR pBufEnd = Buffer + BufLength;
- p = CountOnePageUp(Buffer, BufLength, pBufEnd);
- i = strcspn(p, "\n");
- }
- else if (ScanCode == KEYSC_PAGEUP || c=='u')
- {
- p = CountOnePageUp(Buffer, BufLength, p);
- i = strcspn(p, "\n");
- }
- else if (ScanCode == KEYSC_HOME || c=='h')
- {
- p = Buffer;
- i = strcspn(p, "\n");
- }
- else if (ScanCode == KEYSC_ARROWUP)
- {
- p = CountOnePageUp(Buffer, BufLength, p);
- i = strcspn(p, "\n");
- }
-
- KdbNumberOfRowsPrinted = 0;
- KdbNumberOfColsPrinted = 0;
- }
-
- /* Insert a NUL after the line and print only the current line. */
- if (p[i] == '\n' && p[i + 1] != '\0')
- {
- c = p[i + 1];
- p[i + 1] = '\0';
- }
- else
- {
- c = '\0';
- }
-
- /* Remove escape sequences from the line if there's no terminal connected */
- if (!TerminalConnected)
- {
- while ((p2 = strrchr(p, '\x1b'))) /* Look for escape character */
- {
- if (p2[1] == '[')
- {
- j = 2;
- while (!isalpha(p2[j++]));
- strcpy(p2, p2 + j);
- }
- else
- {
- strcpy(p2, p2 + 1);
- }
- }
- }
-
- // The main printing of the current line:
- DbgPrint(p);
-
- // restore not null char with saved:
- if (c != '\0')
- p[i + 1] = c;
-
- /* Set p to the start of the next line and
- * remember the number of rows/cols printed
- */
- p += i;
- if (p[0] == '\n')
- {
- p++;
- KdbNumberOfColsPrinted = 0;
- }
- else
- {
- ASSERT(p[0] == '\0');
- KdbNumberOfColsPrinted += i;
- }
-
- KdbNumberOfRowsPrinted += RowsPrintedByTerminal;
- }
-}
-
-/*!\brief Appends a command to the command history
- *
- * \param Command Pointer to the command to append to the history.
- */
-static VOID
-KdbpCommandHistoryAppend(
- IN PCHAR Command)
-{
- ULONG Length1 = strlen(Command) + 1;
- ULONG Length2 = 0;
- INT i;
- PCHAR Buffer;
-
- ASSERT(Length1 <= RTL_NUMBER_OF(KdbCommandHistoryBuffer));
-
- if (Length1 <= 1 ||
- (KdbCommandHistory[KdbCommandHistoryIndex] &&
- strcmp(KdbCommandHistory[KdbCommandHistoryIndex], Command) == 0))
- {
- return;
- }
-
- /* Calculate Length1 and Length2 */
- Buffer = KdbCommandHistoryBuffer + KdbCommandHistoryBufferIndex;
- KdbCommandHistoryBufferIndex += Length1;
- if (KdbCommandHistoryBufferIndex >= (LONG)RTL_NUMBER_OF(KdbCommandHistoryBuffer))
- {
- KdbCommandHistoryBufferIndex -= RTL_NUMBER_OF(KdbCommandHistoryBuffer);
- Length2 = KdbCommandHistoryBufferIndex;
- Length1 -= Length2;
- }
-
- /* Remove previous commands until there is enough space to append the new command */
- for (i = KdbCommandHistoryIndex; KdbCommandHistory[i];)
- {
- if ((Length2 > 0 &&
- (KdbCommandHistory[i] >= Buffer ||
- KdbCommandHistory[i] < (KdbCommandHistoryBuffer + KdbCommandHistoryBufferIndex))) ||
- (Length2 <= 0 &&
- (KdbCommandHistory[i] >= Buffer &&
- KdbCommandHistory[i] < (KdbCommandHistoryBuffer + KdbCommandHistoryBufferIndex))))
- {
- KdbCommandHistory[i] = NULL;
- }
-
- i--;
- if (i < 0)
- i = RTL_NUMBER_OF(KdbCommandHistory) - 1;
-
- if (i == KdbCommandHistoryIndex)
- break;
- }
-
- /* Make sure the new command history entry is free */
- KdbCommandHistoryIndex++;
- KdbCommandHistoryIndex %= RTL_NUMBER_OF(KdbCommandHistory);
- if (KdbCommandHistory[KdbCommandHistoryIndex])
- {
- KdbCommandHistory[KdbCommandHistoryIndex] = NULL;
- }
-
- /* Append command */
- KdbCommandHistory[KdbCommandHistoryIndex] = Buffer;
- ASSERT((KdbCommandHistory[KdbCommandHistoryIndex] + Length1) <= KdbCommandHistoryBuffer + RTL_NUMBER_OF(KdbCommandHistoryBuffer));
- memcpy(KdbCommandHistory[KdbCommandHistoryIndex], Command, Length1);
- if (Length2 > 0)
- {
- memcpy(KdbCommandHistoryBuffer, Command + Length1, Length2);
- }
-}
-
-/*!\brief Reads a line of user-input.
- *
- * \param Buffer Buffer to store the input into. Trailing newlines are removed.
- * \param Size Size of \a Buffer.
- *
- * \note Accepts only \n newlines, \r is ignored.
- */
-static VOID
-KdbpReadCommand(
- OUT PCHAR Buffer,
- IN ULONG Size)
-{
- CHAR Key;
- PCHAR Orig = Buffer;
- ULONG ScanCode = 0;
- BOOLEAN EchoOn;
- static CHAR LastCommand[1024];
- static CHAR NextKey = '\0';
- INT CmdHistIndex = -1;
- INT i;
-
- EchoOn = !((KdbDebugState & KD_DEBUG_KDNOECHO) != 0);
-
- for (;;)
- {
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- {
- Key = (NextKey == '\0') ? KdbpGetCharSerial() : NextKey;
- NextKey = '\0';
- ScanCode = 0;
- if (Key == KEY_ESC) /* ESC */
- {
- Key = KdbpGetCharSerial();
- if (Key == '[')
- {
- Key = KdbpGetCharSerial();
-
- switch (Key)
- {
- case 'A':
- ScanCode = KEY_SCAN_UP;
- break;
- case 'B':
- ScanCode = KEY_SCAN_DOWN;
- break;
- case 'C':
- break;
- case 'D':
- break;
- }
- }
- }
- }
- else
- {
- ScanCode = 0;
- Key = (NextKey == '\0') ? KdbpGetCharKeyboard(&ScanCode) : NextKey;
- NextKey = '\0';
- }
-
- if ((ULONG)(Buffer - Orig) >= (Size - 1))
- {
- /* Buffer is full, accept only newlines */
- if (Key != '\n')
- continue;
- }
-
- if (Key == '\r')
- {
- /* Read the next char - this is to throw away a \n which most clients should
- * send after \r.
- */
- KeStallExecutionProcessor(100000);
-
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- NextKey = KdbpTryGetCharSerial(5);
- else
- NextKey = KdbpTryGetCharKeyboard(&ScanCode, 5);
-
- if (NextKey == '\n' || NextKey == -1) /* \n or no response at all */
- NextKey = '\0';
-
- KdbpPrint("\n");
-
- /*
- * Repeat the last command if the user presses enter. Reduces the
- * risk of RSI when single-stepping.
- */
- if (Buffer != Orig)
- {
- KdbRepeatLastCommand = TRUE;
- *Buffer = '\0';
- RtlStringCbCopyA(LastCommand, sizeof(LastCommand), Orig);
- }
- else if (KdbRepeatLastCommand)
- RtlStringCbCopyA(Buffer, Size, LastCommand);
- else
- *Buffer = '\0';
-
- return;
- }
- else if (Key == KEY_BS || Key == KEY_DEL)
- {
- if (Buffer > Orig)
- {
- Buffer--;
- *Buffer = 0;
-
- if (EchoOn)
- KdbpPrint("%c %c", KEY_BS, KEY_BS);
- else
- KdbpPrint(" %c", KEY_BS);
- }
- }
- else if (ScanCode == KEY_SCAN_UP)
- {
- BOOLEAN Print = TRUE;
-
- if (CmdHistIndex < 0)
- {
- CmdHistIndex = KdbCommandHistoryIndex;
- }
- else
- {
- i = CmdHistIndex - 1;
-
- if (i < 0)
- CmdHistIndex = RTL_NUMBER_OF(KdbCommandHistory) - 1;
-
- if (KdbCommandHistory[i] && i != KdbCommandHistoryIndex)
- CmdHistIndex = i;
- else
- Print = FALSE;
- }
-
- if (Print && KdbCommandHistory[CmdHistIndex])
- {
- while (Buffer > Orig)
- {
- Buffer--;
- *Buffer = 0;
-
- if (EchoOn)
- KdbpPrint("%c %c", KEY_BS, KEY_BS);
- else
- KdbpPrint(" %c", KEY_BS);
- }
-
- i = min(strlen(KdbCommandHistory[CmdHistIndex]), Size - 1);
- memcpy(Orig, KdbCommandHistory[CmdHistIndex], i);
- Orig[i] = '\0';
- Buffer = Orig + i;
- KdbpPrint("%s", Orig);
- }
- }
- else if (ScanCode == KEY_SCAN_DOWN)
- {
- if (CmdHistIndex > 0 && CmdHistIndex != KdbCommandHistoryIndex)
- {
- i = CmdHistIndex + 1;
- if (i >= (INT)RTL_NUMBER_OF(KdbCommandHistory))
- i = 0;
-
- if (KdbCommandHistory[i])
- {
- CmdHistIndex = i;
- while (Buffer > Orig)
- {
- Buffer--;
- *Buffer = 0;
-
- if (EchoOn)
- KdbpPrint("%c %c", KEY_BS, KEY_BS);
- else
- KdbpPrint(" %c", KEY_BS);
- }
-
- i = min(strlen(KdbCommandHistory[CmdHistIndex]), Size - 1);
- memcpy(Orig, KdbCommandHistory[CmdHistIndex], i);
- Orig[i] = '\0';
- Buffer = Orig + i;
- KdbpPrint("%s", Orig);
- }
- }
- }
- else
- {
- if (EchoOn)
- KdbpPrint("%c", Key);
-
- *Buffer = Key;
- Buffer++;
- }
- }
-}
-
-
-BOOLEAN
-NTAPI
-KdbRegisterCliCallback(
- PVOID Callback,
- BOOLEAN Deregister)
-{
- ULONG i;
-
- /* Loop all entries */
- for (i = 0; i < _countof(KdbCliCallbacks); i++)
- {
- /* Check if deregistering was requested */
- if (Deregister)
- {
- /* Check if this entry is the one that was registered */
- if (KdbCliCallbacks[i] == Callback)
- {
- /* Delete it and report success */
- KdbCliCallbacks[i] = NULL;
- return TRUE;
- }
- }
- else
- {
- /* Check if this entry is free */
- if (KdbCliCallbacks[i] == NULL)
- {
- /* Set it and and report success */
- KdbCliCallbacks[i] = Callback;
- return TRUE;
- }
- }
- }
-
- /* Unsuccessful */
- return FALSE;
-}
-
-/*! \brief Invokes registered CLI callbacks until one of them handled the
- * Command.
- *
- * \param Command - Command line to parse and execute if possible.
- * \param Argc - Number of arguments in Argv
- * \param Argv - Array of strings, each of them containing one argument.
- *
- * \return TRUE, if the command was handled, FALSE if it was not handled.
- */
-static
-BOOLEAN
-KdbpInvokeCliCallbacks(
- IN PCHAR Command,
- IN ULONG Argc,
- IN PCH Argv[])
-{
- ULONG i;
-
- /* Loop all entries */
- for (i = 0; i < _countof(KdbCliCallbacks); i++)
- {
- /* Check if this entry is registered */
- if (KdbCliCallbacks[i])
- {
- /* Invoke the callback and check if it handled the command */
- if (KdbCliCallbacks[i](Command, Argc, Argv))
- {
- return TRUE;
- }
- }
- }
-
- /* None of the callbacks handled the command */
- return FALSE;
-}
-
-
-/*!\brief Parses command line and executes command if found
- *
- * \param Command Command line to parse and execute if possible.
- *
- * \retval TRUE Don't continue execution.
- * \retval FALSE Continue execution (leave KDB)
- */
-static BOOLEAN
-KdbpDoCommand(
- IN PCHAR Command)
-{
- ULONG i;
- PCHAR p;
- ULONG Argc;
- // FIXME: for what do we need a 1024 characters command line and 256 tokens?
- static PCH Argv[256];
- static CHAR OrigCommand[1024];
-
- RtlStringCbCopyA(OrigCommand, sizeof(OrigCommand), Command);
-
- Argc = 0;
- p = Command;
-
- for (;;)
- {
- while (*p == '\t' || *p == ' ')
- p++;
-
- if (*p == '\0')
- break;
-
- i = strcspn(p, "\t ");
- Argv[Argc++] = p;
- p += i;
- if (*p == '\0')
- break;
-
- *p = '\0';
- p++;
- }
-
- if (Argc < 1)
- return TRUE;
-
- for (i = 0; i < RTL_NUMBER_OF(KdbDebuggerCommands); i++)
- {
- if (!KdbDebuggerCommands[i].Name)
- continue;
-
- if (strcmp(KdbDebuggerCommands[i].Name, Argv[0]) == 0)
- {
- return KdbDebuggerCommands[i].Fn(Argc, Argv);
- }
- }
-
- /* Now invoke the registered callbacks */
- if (KdbpInvokeCliCallbacks(Command, Argc, Argv))
- {
- return TRUE;
- }
-
- KdbpPrint("Command '%s' is unknown.\n", OrigCommand);
- return TRUE;
-}
-
-/*!\brief KDB Main Loop.
- *
- * \param EnteredOnSingleStep TRUE if KDB was entered on single step.
- */
-VOID
-KdbpCliMainLoop(
- IN BOOLEAN EnteredOnSingleStep)
-{
- static CHAR Command[1024];
- BOOLEAN Continue;
-
- if (EnteredOnSingleStep)
- {
- if (!KdbSymPrintAddress((PVOID)KdbCurrentTrapFrame->Tf.Eip, &KdbCurrentTrapFrame->Tf))
- {
- KdbpPrint("<%x>", KdbCurrentTrapFrame->Tf.Eip);
- }
-
- KdbpPrint(": ");
- if (KdbpDisassemble(KdbCurrentTrapFrame->Tf.Eip, KdbUseIntelSyntax) < 0)
- {
- KdbpPrint("<INVALID>");
- }
- KdbpPrint("\n");
- }
-
- /* Flush the input buffer */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- {
- while (KdbpTryGetCharSerial(1) != -1);
- }
- else
- {
- ULONG ScanCode;
- while (KdbpTryGetCharKeyboard(&ScanCode, 1) != -1);
- }
-
- /* Main loop */
- do
- {
- /* Reset the number of rows/cols printed */
- KdbNumberOfRowsPrinted = KdbNumberOfColsPrinted = 0;
-
- /* Print the prompt */
- KdbpPrint("kdb:> ");
-
- /* Read a command and remember it */
- KdbpReadCommand(Command, sizeof (Command));
- KdbpCommandHistoryAppend(Command);
-
- /* Reset the number of rows/cols printed and output aborted state */
- KdbNumberOfRowsPrinted = KdbNumberOfColsPrinted = 0;
- KdbOutputAborted = FALSE;
-
- /* Call the command */
- Continue = KdbpDoCommand(Command);
- KdbOutputAborted = FALSE;
- }
- while (Continue);
-}
-
-/*!\brief Called when a module is loaded.
- *
- * \param Name Filename of the module which was loaded.
- */
-VOID
-KdbpCliModuleLoaded(
- IN PUNICODE_STRING Name)
-{
- if (!KdbBreakOnModuleLoad)
- return;
-
- KdbpPrint("Module %wZ loaded.\n", Name);
- DbgBreakPointWithStatus(DBG_STATUS_CONTROL_C);
-}
-
-/*!\brief This function is called by KdbEnterDebuggerException...
- *
- * Used to interpret the init file in a context with a trapframe setup
- * (KdbpCliInit call KdbEnter which will call KdbEnterDebuggerException which will
- * call this function if KdbInitFileBuffer is not NULL.
- */
-VOID
-KdbpCliInterpretInitFile(VOID)
-{
- PCHAR p1, p2;
- INT i;
- CHAR c;
-
- /* Execute the commands in the init file */
- DPRINT("KDB: Executing KDBinit file...\n");
- p1 = KdbInitFileBuffer;
- while (p1[0] != '\0')
- {
- i = strcspn(p1, "\r\n");
- if (i > 0)
- {
- c = p1[i];
- p1[i] = '\0';
-
- /* Look for "break" command and comments */
- p2 = p1;
-
- while (isspace(p2[0]))
- p2++;
-
- if (strncmp(p2, "break", sizeof("break")-1) == 0 &&
- (p2[sizeof("break")-1] == '\0' || isspace(p2[sizeof("break")-1])))
- {
- /* break into the debugger */
- KdbpCliMainLoop(FALSE);
- }
- else if (p2[0] != '#' && p2[0] != '\0') /* Ignore empty lines and comments */
- {
- KdbpDoCommand(p1);
- }
-
- p1[i] = c;
- }
-
- p1 += i;
- while (p1[0] == '\r' || p1[0] == '\n')
- p1++;
- }
- DPRINT("KDB: KDBinit executed\n");
-}
-
-/*!\brief Called when KDB is initialized
- *
- * Reads the KDBinit file from the SystemRoot\System32\drivers\etc directory and executes it.
- */
-VOID
-KdbpCliInit(VOID)
-{
- NTSTATUS Status;
- OBJECT_ATTRIBUTES ObjectAttributes;
- UNICODE_STRING FileName;
- IO_STATUS_BLOCK Iosb;
- FILE_STANDARD_INFORMATION FileStdInfo;
- HANDLE hFile = NULL;
- INT FileSize;
- PCHAR FileBuffer;
- ULONG OldEflags;
-
- /* Initialize the object attributes */
- RtlInitUnicodeString(&FileName, L"\\SystemRoot\\System32\\drivers\\etc\\KDBinit");
- InitializeObjectAttributes(&ObjectAttributes, &FileName, 0, NULL, NULL);
-
- /* Open the file */
- Status = ZwOpenFile(&hFile, FILE_READ_DATA | SYNCHRONIZE,
- &ObjectAttributes, &Iosb, 0,
- FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT |
- FILE_NO_INTERMEDIATE_BUFFERING);
- if (!NT_SUCCESS(Status))
- {
- DPRINT("Could not open \\SystemRoot\\System32\\drivers\\etc\\KDBinit (Status 0x%x)", Status);
- return;
- }
-
- /* Get the size of the file */
- Status = ZwQueryInformationFile(hFile, &Iosb, &FileStdInfo, sizeof (FileStdInfo),
- FileStandardInformation);
- if (!NT_SUCCESS(Status))
- {
- ZwClose(hFile);
- DPRINT("Could not query size of \\SystemRoot\\System32\\drivers\\etc\\KDBinit (Status 0x%x)", Status);
- return;
- }
- FileSize = FileStdInfo.EndOfFile.u.LowPart;
-
- /* Allocate memory for the file */
- FileBuffer = ExAllocatePool(PagedPool, FileSize + 1); /* add 1 byte for terminating '\0' */
- if (!FileBuffer)
- {
- ZwClose(hFile);
- DPRINT("Could not allocate %d bytes for KDBinit file\n", FileSize);
- return;
- }
-
- /* Load file into memory */
- Status = ZwReadFile(hFile, 0, 0, 0, &Iosb, FileBuffer, FileSize, 0, 0);
- ZwClose(hFile);
-
- if (!NT_SUCCESS(Status) && Status != STATUS_END_OF_FILE)
- {
- ExFreePool(FileBuffer);
- DPRINT("Could not read KDBinit file into memory (Status 0x%lx)\n", Status);
- return;
- }
-
- FileSize = min(FileSize, (INT)Iosb.Information);
- FileBuffer[FileSize] = '\0';
-
- /* Enter critical section */
- OldEflags = __readeflags();
- _disable();
-
- /* Interpret the init file... */
- KdbInitFileBuffer = FileBuffer;
- KdbEnter();
- KdbInitFileBuffer = NULL;
-
- /* Leave critical section */
- __writeeflags(OldEflags);
-
- ExFreePool(FileBuffer);
-}
-
-VOID
-NTAPI
-KdpSerialDebugPrint(
- LPSTR Message,
- ULONG Length
-);
-
-STRING KdpPromptString = RTL_CONSTANT_STRING("kdb:> ");
-extern KSPIN_LOCK KdpSerialSpinLock;
-
-ULONG
-NTAPI
-KdpPrompt(IN LPSTR InString,
- IN USHORT InStringLength,
- OUT LPSTR OutString,
- IN USHORT OutStringLength)
-{
- USHORT i;
- CHAR Response;
- ULONG DummyScanCode;
- KIRQL OldIrql;
-
- /* Acquire the printing spinlock without waiting at raised IRQL */
- while (TRUE)
- {
- /* Wait when the spinlock becomes available */
- while (!KeTestSpinLock(&KdpSerialSpinLock));
-
- /* Spinlock was free, raise IRQL */
- KeRaiseIrql(HIGH_LEVEL, &OldIrql);
-
- /* Try to get the spinlock */
- if (KeTryToAcquireSpinLockAtDpcLevel(&KdpSerialSpinLock))
- break;
-
- /* Someone else got the spinlock, lower IRQL back */
- KeLowerIrql(OldIrql);
- }
-
- /* Loop the string to send */
- for (i = 0; i < InStringLength; i++)
- {
- /* Print it to serial */
- KdPortPutByteEx(&SerialPortInfo, *(PCHAR)(InString + i));
- }
-
- /* Print a new line for log neatness */
- KdPortPutByteEx(&SerialPortInfo, '\r');
- KdPortPutByteEx(&SerialPortInfo, '\n');
-
- /* Print the kdb prompt */
- for (i = 0; i < KdpPromptString.Length; i++)
- {
- /* Print it to serial */
- KdPortPutByteEx(&SerialPortInfo,
- *(KdpPromptString.Buffer + i));
- }
-
- if (!(KdbDebugState & KD_DEBUG_KDSERIAL))
- KbdDisableMouse();
-
- /* Loop the whole string */
- for (i = 0; i < OutStringLength; i++)
- {
- /* Check if this is serial debugging mode */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- {
- /* Get the character from serial */
- do
- {
- Response = KdbpTryGetCharSerial(MAXULONG);
- } while (Response == -1);
- }
- else
- {
- /* Get the response from the keyboard */
- do
- {
- Response = KdbpTryGetCharKeyboard(&DummyScanCode, MAXULONG);
- } while (Response == -1);
- }
-
- /* Check for return */
- if (Response == '\r')
- {
- /*
- * We might need to discard the next '\n'.
- * Wait a bit to make sure we receive it.
- */
- KeStallExecutionProcessor(100000);
-
- /* Check the mode */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- {
- /* Read and discard the next character, if any */
- KdbpTryGetCharSerial(5);
- }
- else
- {
- /* Read and discard the next character, if any */
- KdbpTryGetCharKeyboard(&DummyScanCode, 5);
- }
-
- /*
- * Null terminate the output string -- documentation states that
- * DbgPrompt does not null terminate, but it does
- */
- *(PCHAR)(OutString + i) = 0;
- break;
- }
-
- /* Write it back and print it to the log */
- *(PCHAR)(OutString + i) = Response;
- KdPortPutByteEx(&SerialPortInfo, Response);
- }
-
- if (!(KdbDebugState & KD_DEBUG_KDSERIAL))
- KbdEnableMouse();
-
- /* Print a new line */
- KdPortPutByteEx(&SerialPortInfo, '\r');
- KdPortPutByteEx(&SerialPortInfo, '\n');
-
- /* Release spinlock */
- KiReleaseSpinLock(&KdpSerialSpinLock);
-
- /* Lower IRQL back */
- KeLowerIrql(OldIrql);
-
- /* Return the length */
- return i;
-}