gdbstub.c File Reference

#include <ntoskrnl.h>
#include <debug.h>

Go to the source code of this file.

Data Structures
struct	PCPU_REGISTER
struct	GSPHWBREAKPOINT
struct	GSPSWBREAKPOINT
Defines
#define	NDEBUG
#define	NUMREGS   16
#define	DR6_BS   0x00004000 /* Single step */
#define	DR7_L0   0x00000001 /* Local breakpoint 0 enable */
#define	DR7_G0   0x00000002 /* Global breakpoint 0 enable */
#define	DR7_L1   0x00000004 /* Local breakpoint 1 enable */
#define	DR7_G1   0x00000008 /* Global breakpoint 1 enable */
#define	DR7_L2   0x00000010 /* Local breakpoint 2 enable */
#define	DR7_G2   0x00000020 /* Global breakpoint 2 enable */
#define	DR7_L3   0x00000040 /* Local breakpoint 3 enable */
#define	DR7_G3   0x00000080 /* Global breakpoint 3 enable */
#define	DR7_LE   0x00000100 /* Local exact breakpoint enable (old) */
#define	DR7_GE   0x00000200 /* Global exact breakpoint enable (old) */
#define	DR7_GD   0x00002000 /* General detect enable */
#define	DR7_TYPE0_MASK   0x00030000 /* Breakpoint 0 condition */
#define	DR7_LEN0_MASK   0x000c0000 /* Breakpoint 0 length */
#define	DR7_TYPE1_MASK   0x00300000 /* Breakpoint 1 condition */
#define	DR7_LEN1_MASK   0x00c00000 /* Breakpoint 1 length */
#define	DR7_TYPE2_MASK   0x03000000 /* Breakpoint 2 condition */
#define	DR7_LEN2_MASK   0x0c000000 /* Breakpoint 2 length */
#define	DR7_TYPE3_MASK   0x30000000 /* Breakpoint 3 condition */
#define	DR7_LEN3_MASK   0xc0000000 /* Breakpoint 3 length */
#define	DR7_GLOBAL_ENABLE(Bp)   (2 << (2 * (Bp)))
#define	DR7_TYPE(Bp, Type)   ((Type) << (16 + 4 * (Bp)))
#define	DR7_LEN(Bp, Len)   ((Len) << (18 + 4 * (Bp)))
#define	I386_BP_TYPE_EXECUTE   0
#define	I386_BP_TYPE_DATA_WRITE   1
#define	I386_BP_TYPE_DATA_READWRITE   3
#define	I386_OPCODE_INT3   0xcc
#define	GDB_ZTYPE_MEMORY_BREAKPOINT   0
#define	GDB_ZTYPE_HARDWARE_BREAKPOINT   1
#define	GDB_ZTYPE_WRITE_WATCHPOINT   2
#define	GDB_ZTYPE_READ_WATCHPOINT   3
#define	GDB_ZTYPE_ACCESS_WATCHPOINT   4
#define	MAX_HW_BREAKPOINTS   4
#define	MAX_SW_BREAKPOINTS   64
Enumerations
enum	REGISTER_NAMES {   EAX, ECX, EDX, EBX,   ESP, EBP, ESI, EDI,   PC, PS, CS, SS,   DS, ES, FS, GS,   EAX, ECX, EDX, EBX,   ESP, EBP, ESI, EDI,   PC, PS, CS, SS,   DS, ES, FS, GS }
Functions
LONG	HexValue (CHAR ch)
VOID	GdbPutChar (UCHAR Value)
UCHAR	GdbGetChar (VOID)
PCHAR	GspGetPacket ()
VOID	GspPutPacket (PCHAR Buffer)
VOID	GspPutPacketNoWait (PCHAR Buffer)
static CHAR	GspReadMemSafe (PCHAR Address)
static void	GspWriteMemSafe (PCHAR Address, CHAR Ch)
static PCHAR	GspMem2Hex (PCHAR Address, PCHAR Buffer, LONG Count, BOOLEAN MayFault)
static ULONG	GspWriteMem (PCHAR Address, ULONG Count, BOOLEAN MayFault, CHAR(*GetContent)(PVOID Context, ULONG Offset), PVOID Context)
static CHAR	GspHex2MemGetContent (PVOID Context, ULONG Offset)
static PCHAR	GspHex2Mem (PCHAR Buffer, PCHAR Address, ULONG Count, BOOLEAN MayFault)
LONG	GspHex2Long (PCHAR *Address, PLONG Value)
VOID	GspLong2Hex (PCHAR *Address, LONG Value)
static LONG	GspGetEspFromTrapFrame (PKTRAP_FRAME TrapFrame)
static VOID	GspGetRegisters (PCHAR Address, PKTRAP_FRAME TrapFrame)
VOID	GspSetRegistersInTrapFrame (PCHAR Address, PCONTEXT Context, PKTRAP_FRAME TrapFrame)
VOID	GspSetSingleRegisterInTrapFrame (PCHAR Address, LONG Number, PCONTEXT Context, PKTRAP_FRAME TrapFrame)
BOOLEAN	GspFindThread (PCHAR Data, PETHREAD *Thread)
VOID	GspSetThread (PCHAR Request)
VOID	GspQuery (PCHAR Request)
VOID	GspQueryThreadStatus (PCHAR Request)
static void	GspSetHwBreakpoint (ULONG Type, ULONG_PTR Address, ULONG Length)
static void	GspRemoveHwBreakpoint (ULONG Type, ULONG_PTR Address, ULONG Length)
static BOOLEAN	GspFindSwBreakpoint (ULONG_PTR Address, PULONG PIndex)
static void	GspSetSwBreakpoint (ULONG_PTR Address)
static void	GspRemoveSwBreakpoint (ULONG_PTR Address)
static void	GspLoadHwBreakpoint (PKTRAP_FRAME TrapFrame, unsigned BpIndex, ULONG_PTR Address, ULONG Length, ULONG Type)
static void	GspLoadSwBreakpoint (ULONG Index)
static void	GspLoadBreakpoints (PKTRAP_FRAME TrapFrame)
static void	GspUnloadBreakpoints (void)
static void	GspStopReply (NTSTATUS ExceptionCode, PKTRAP_FRAME TrapFrame)
KD_CONTINUE_TYPE NTAPI	KdpGdbEnterDebuggerException (PEXCEPTION_RECORD ExceptionRecord, PCONTEXT Context, PKTRAP_FRAME TrapFrame)
BOOLEAN NTAPI	GspBreakIn (PKINTERRUPT Interrupt, PVOID ServiceContext)
VOID NTAPI	KdpGdbDebugPrint (PCH Message, ULONG Length)
VOID NTAPI	KdpGdbStubInit (PKD_DISPATCH_TABLE WrapperTable, ULONG BootPhase)
Variables
static BOOLEAN	GspInitialized
static BOOLEAN	GspRemoteDebug
static CONST CHAR	HexChars [] = "0123456789abcdef"
static PETHREAD	GspRunThread
static PETHREAD	GspDbgThread
static PETHREAD	GspEnumThread
static FAST_MUTEX	GspLock
LIST_ENTRY	PsActiveProcessHead
KD_PORT_INFORMATION	GdbPortInfo = { 2, 115200, 0 }
static CHAR	GspInBuffer [1000]
static CHAR	GspOutBuffer [1000]
static CPU_REGISTER	GspRegisters [NUMREGS]
static PCHAR	GspThreadStates [DeferredReady+1]
static volatile BOOLEAN	GspMemoryError = FALSE
static unsigned	GspHwBreakpointCount = 0
static GSPHWBREAKPOINT	GspHwBreakpoints [MAX_HW_BREAKPOINTS]
static unsigned	GspSwBreakpointCount = 0
static GSPSWBREAKPOINT	GspSwBreakpoints [MAX_SW_BREAKPOINTS]