--- trunk/reactos/ntoskrnl/kd/wrappers/gdbstub.c 2005-10-14 13:04:11 UTC (rev 18442)
+++ trunk/reactos/ntoskrnl/kd/wrappers/gdbstub.c 2005-10-14 13:39:27 UTC (rev 18443)
@@ -1,6 +1,6 @@
/****************************************************************************
- THIS SOFTWARE IS NOT COPYRIGHTED
+ THIS SOFTWARE IS NOT COPYRIGHTED
HP offers the following for use in the public domain. HP makes no
warranty with regard to the software or it's performance and the
@@ -110,14 +110,14 @@
KD_PORT_INFORMATION GdbPortInfo = { 2, 115200, 0 }; /* FIXME hardcoded for COM2, 115200 baud */
/* Number of Registers. */
-#define NUMREGS 16
+#define NUMREGS 16
enum REGISTER_NAMES
{
EAX, ECX, EDX, EBX, ESP, EBP, ESI, EDI,
- PC /* also known as eip */,
- PS /* also known as eflags */,
- CS, SS, DS, ES, FS, GS
+ PC /* also known as eip */,
+ PS /* also known as eflags */,
+ CS, SS, DS, ES, FS, GS
};
typedef struct _CPU_REGISTER
@@ -213,47 +213,36 @@
/* now, read until a # or end of Buffer is found */
while (Count < BUFMAX)
- {
- ch = GdbGetChar ();
- if (ch == '$')
- goto retry;
- if (ch == '#')
- break;
- Checksum = Checksum + ch;
- Buffer[Count] = ch;
- Count = Count + 1;
- }
+ {
+ ch = GdbGetChar ();
+ if (ch == '$')
+ goto retry;
+ if (ch == '#')
+ break;
+ Checksum = Checksum + ch;
+ Buffer[Count] = ch;
+ Count = Count + 1;
+ }
Buffer[Count] = 0;
if (ch == '#')
- {
- ch = GdbGetChar ();
- XmitChecksum = (CHAR)(HexValue (ch) << 4);
- ch = GdbGetChar ();
- XmitChecksum += (CHAR)(HexValue (ch));
+ {
+ ch = GdbGetChar ();
+ XmitChecksum = (CHAR)(HexValue (ch) << 4);
+ ch = GdbGetChar ();
+ XmitChecksum += (CHAR)(HexValue (ch));
- if (Checksum != XmitChecksum)
- {
- GdbPutChar ('-'); /* failed checksum */
- }
- else
- {
- GdbPutChar ('+'); /* successful transfer */
+ if (Checksum != XmitChecksum)
+ {
+ GdbPutChar ('-'); /* failed checksum */
+ }
+ else
+ {
+ GdbPutChar ('+'); /* successful transfer */
-#if 0
- /* if a sequence char is present, reply the sequence ID */
- if (Buffer[2] == ':')
- {
- GdbPutChar (Buffer[0]);
- GdbPutChar (Buffer[1]);
-
- return &Buffer[3];
- }
-#endif
-
- return &Buffer[0];
- }
- }
+ return &Buffer[0];
+ }
+ }
}
}
@@ -274,11 +263,11 @@
Count = 0;
while ((ch = Buffer[Count]))
- {
- GdbPutChar (ch);
- Checksum += ch;
- Count += 1;
- }
+ {
+ GdbPutChar (ch);
+ Checksum += ch;
+ Count += 1;
+ }
GdbPutChar ('#');
GdbPutChar (HexChars[(Checksum >> 4) & 0xf]);
@@ -301,11 +290,11 @@
Count = 0;
while ((ch = Buffer[Count]))
- {
- GdbPutChar (ch);
- Checksum += ch;
- Count += 1;
- }
+ {
+ GdbPutChar (ch);
+ Checksum += ch;
+ Count += 1;
+ }
GdbPutChar ('#');
GdbPutChar (HexChars[(Checksum >> 4) & 0xf]);
@@ -425,37 +414,33 @@
switch (ExceptionCode)
{
case STATUS_INTEGER_DIVIDE_BY_ZERO:
- SigVal = 8;
- break; /* divide by zero */
+ SigVal = 8; /* divide by zero */
+ break;
case STATUS_SINGLE_STEP:
- /* debug exception */
case STATUS_BREAKPOINT:
- SigVal = 5;
- break; /* breakpoint */
+ SigVal = 5; /* breakpoint */
+ break;
case STATUS_INTEGER_OVERFLOW:
- /* into instruction (overflow) */
case STATUS_ARRAY_BOUNDS_EXCEEDED:
- SigVal = 16;
- break; /* bound instruction */
+ SigVal = 16; /* bound instruction */
+ break;
case STATUS_ILLEGAL_INSTRUCTION:
- SigVal = 4;
- break; /* Invalid opcode */
+ SigVal = 4; /* Invalid opcode */
+ break;
#if 0
case STATUS_FLT_INVALID_OPERATION:
SigVal = 8;
- break; /* coprocessor not available */
+ break;
#endif
case STATUS_STACK_OVERFLOW:
- /* stack exception */
case STATUS_DATATYPE_MISALIGNMENT:
- /* page fault */
case STATUS_ACCESS_VIOLATION:
- SigVal = 11; /* access violation */
+ SigVal = 11; /* access violation */
break;
default:
- SigVal = 7; /* "software generated" */
+ SigVal = 7; /* "software generated" */
}
- return (SigVal);
+ return SigVal;
}
@@ -476,12 +461,14 @@
{
Hex = HexValue (**Address);
if (Hex >= 0)
- {
- *Value = (*Value << 4) | Hex;
- NumChars++;
- }
- else
- break;
+ {
+ *Value = (*Value << 4) | Hex;
+ NumChars++;
+ }
+ else
+ {
+ break;
+ }
(*Address)++;
}
@@ -631,7 +618,7 @@
ThreadId = (HANDLE)uThreadId;
if (!NT_SUCCESS (PsLookupThreadByThreadId (ThreadId, &ThreadInfo)))
- {
+ {
*Thread = NULL;
return FALSE;
}
@@ -650,7 +637,7 @@
switch (Request[0])
{
case 'c': /* Run thread */
- if (GspFindThread (ptr, &ThreadInfo))
+ if (GspFindThread(ptr, &ThreadInfo))
{
GspOutBuffer[0] = 'O';
GspOutBuffer[1] = 'K';
@@ -672,18 +659,21 @@
break;
case 'g': /* Debug thread */
if (GspFindThread (ptr, &ThreadInfo))
- {
- GspOutBuffer[0] = 'O';
- GspOutBuffer[1] = 'K';
+ {
+ GspOutBuffer[0] = 'O';
+ GspOutBuffer[1] = 'K';
- if(GspDbgThread) ObDereferenceObject(GspDbgThread);
+ if (GspDbgThread)
+ {
+ ObDereferenceObject(GspDbgThread);
+ }
- GspDbgThread = ThreadInfo;
- }
- else
- {
- GspOutBuffer[0] = 'E';
- }
+ GspDbgThread = ThreadInfo;
+ }
+ else
+ {
+ GspOutBuffer[0] = 'E';
+ }
break;
default:
break;
@@ -905,96 +895,98 @@
"=r" (addr2), "=r" (addr3) : );
} while (FALSE);
#elif defined(_MSC_VER)
- __asm
+ __asm
{
- mov eax, dr7; mov dr7_, eax;
- mov eax, dr0; mov addr0, eax;
- mov eax, dr1; mov addr1, eax;
- mov eax, dr2; mov addr2, eax;
- mov eax, dr3; mov addr3, eax;
+ mov eax, dr7; mov dr7_, eax;
+ mov eax, dr0; mov addr0, eax;
+ mov eax, dr1; mov addr1, eax;
+ mov eax, dr2; mov addr2, eax;
+ mov eax, dr3; mov addr3, eax;
}
#else
#error Unknown compiler for inline assembler
#endif
- CorrectIt = FALSE;
- for (BreakpointNumber = 0; BreakpointNumber < 3; BreakpointNumber++)
+ CorrectIt = FALSE;
+ for (BreakpointNumber = 0; BreakpointNumber < 3; BreakpointNumber++)
{
- Bit = 2 << (BreakpointNumber << 1);
- if (!(dr7_ & Bit) && GspBreakpoints[BreakpointNumber].Enabled) {
- CorrectIt = TRUE;
- dr7_ |= Bit;
- dr7_ &= ~(0xf0000 << (BreakpointNumber << 2));
- dr7_ |= (((GspBreakpoints[BreakpointNumber].Length << 2) |
- GspBreakpoints[BreakpointNumber].Type) << 16) << (BreakpointNumber << 2);
- switch (BreakpointNumber) {
+ Bit = 2 << (BreakpointNumber << 1);
+ if (!(dr7_ & Bit) && GspBreakpoints[BreakpointNumber].Enabled)
+ {
+ CorrectIt = TRUE;
+ dr7_ |= Bit;
+ dr7_ &= ~(0xf0000 << (BreakpointNumber << 2));
+ dr7_ |= (((GspBreakpoints[BreakpointNumber].Length << 2) |
+ GspBreakpoints[BreakpointNumber].Type) << 16) << (BreakpointNumber << 2);
+ switch (BreakpointNumber)
+ {
#if defined(__GNUC__)
- case 0:
- asm volatile ("movl %0, %%dr0\n"
- : : "r" (GspBreakpoints[BreakpointNumber].Address) );
- break;
+ case 0:
+ asm volatile ("movl %0, %%dr0\n"
+ : : "r" (GspBreakpoints[BreakpointNumber].Address) );
+ break;
- case 1:
- asm volatile ("movl %0, %%dr1\n"
- : : "r" (GspBreakpoints[BreakpointNumber].Address) );
- break;
+ case 1:
+ asm volatile ("movl %0, %%dr1\n"
+ : : "r" (GspBreakpoints[BreakpointNumber].Address) );
+ break;
- case 2:
- asm volatile ("movl %0, %%dr2\n"
- : : "r" (GspBreakpoints[BreakpointNumber].Address) );
- break;
+ case 2:
+ asm volatile ("movl %0, %%dr2\n"
+ : : "r" (GspBreakpoints[BreakpointNumber].Address) );
+ break;
- case 3:
- asm volatile ("movl %0, %%dr3\n"
- : : "r" (GspBreakpoints[BreakpointNumber].Address) );
- break;
+ case 3:
+ asm volatile ("movl %0, %%dr3\n"
+ : : "r" (GspBreakpoints[BreakpointNumber].Address) );
+ break;
#elif defined(_MSC_VER)
- case 0:
- {
- ULONG addr = GspBreakpoints[BreakpointNumber].Address;
- __asm mov eax, addr;
- __asm mov dr0, eax;
- }
- break;
- case 1:
- {
- ULONG addr = GspBreakpoints[BreakpointNumber].Address;
- __asm mov eax, addr;
- __asm mov dr1, eax;
- }
- break;
- case 2:
- {
- ULONG addr = GspBreakpoints[BreakpointNumber].Address;
- __asm mov eax, addr;
- __asm mov dr2, eax;
- }
- break;
- case 3:
- {
- ULONG addr = GspBreakpoints[BreakpointNumber].Address;
- __asm mov eax, addr;
- __asm mov dr3, eax;
- }
- break;
+ case 0:
+ {
+ ULONG addr = GspBreakpoints[BreakpointNumber].Address;
+ __asm mov eax, addr;
+ __asm mov dr0, eax;
+ }
+ break;
+ case 1:
+ {
+ ULONG addr = GspBreakpoints[BreakpointNumber].Address;
+ __asm mov eax, addr;
+ __asm mov dr1, eax;
+ }
+ break;
+ case 2:
+ {
+ ULONG addr = GspBreakpoints[BreakpointNumber].Address;
+ __asm mov eax, addr;
+ __asm mov dr2, eax;
+ }
+ break;
+ case 3:
+ {
+ ULONG addr = GspBreakpoints[BreakpointNumber].Address;
+ __asm mov eax, addr;
+ __asm mov dr3, eax;
+ }
+ break;
#else
#error Unknown compiler for inline assembler
#endif
- }
+ }
+ }
+ else if ((dr7_ & Bit) && !GspBreakpoints[BreakpointNumber].Enabled)
+ {
+ CorrectIt = TRUE;
+ dr7_ &= ~Bit;
+ dr7_ &= ~(0xf0000 << (BreakpointNumber << 2));
+ }
}
- else if ((dr7_ & Bit) && !GspBreakpoints[BreakpointNumber].Enabled)
- {
- CorrectIt = TRUE;
- dr7_ &= ~Bit;
- dr7_ &= ~(0xf0000 << (BreakpointNumber << 2));
- }
- }
if (CorrectIt)
{
#if defined(__GNUC__)
- asm volatile ( "movl %0, %%db7\n" : : "r" (dr7_));
+ asm volatile ( "movl %0, %%db7\n" : : "r" (dr7_));
#elif defined(_MSC_VER)
- __asm mov eax, dr7_;
- __asm mov dr7, eax;
+ __asm mov eax, dr7_;
+ __asm mov dr7, eax;
#else
#error Unknown compiler for inline assembler
#endif
@@ -1004,12 +996,12 @@
ULONG
GspRemoveHwBreakpoint(ULONG BreakpointNumber)
{
- if (!GspBreakpoints[BreakpointNumber].Enabled)
+ if (!GspBreakpoints[BreakpointNumber].Enabled)
{
- return -1;
- }
- GspBreakpoints[BreakpointNumber].Enabled = 0;
- return 0;
+ return -1;
+ }
+ GspBreakpoints[BreakpointNumber].Enabled = 0;
+ return 0;
}
@@ -1019,15 +1011,15 @@
ULONG Length,
ULONG Address)
{
- if (GspBreakpoints[BreakpointNumber].Enabled)
- {
- return -1;
- }
- GspBreakpoints[BreakpointNumber].Enabled = TRUE;
- GspBreakpoints[BreakpointNumber].Type = Type;
- GspBreakpoints[BreakpointNumber].Length = Length;
- GspBreakpoints[BreakpointNumber].Address = Address;
- return 0;
+ if (GspBreakpoints[BreakpointNumber].Enabled)
+ {
+ return -1;
+ }
+ GspBreakpoints[BreakpointNumber].Enabled = TRUE;
+ GspBreakpoints[BreakpointNumber].Type = Type;
+ GspBreakpoints[BreakpointNumber].Length = Length;
+ GspBreakpoints[BreakpointNumber].Address = Address;
+ return 0;
}
@@ -1080,42 +1072,45 @@
/* ugly hack to avoid attempting to send status at the very
* beginning, right when GDB is trying to query the stub */
- if (gdb_attached_yet) {
- LONG Esp;
-
- stop_reply:
- /* reply to host that an exception has occurred */
- SigVal = GspComputeSignal (ExceptionRecord->ExceptionCode);
-
- ptr = &GspOutBuffer[0];
+ if (gdb_attached_yet)
+ {
+ LONG Esp;
+
+ stop_reply:
+ /* reply to host that an exception has occurred */
+ SigVal = GspComputeSignal (ExceptionRecord->ExceptionCode);
- *ptr++ = 'T'; /* notify gdb with signo, PC, FP and SP */
- *ptr++ = HexChars[(SigVal >> 4) & 0xf];
- *ptr++ = HexChars[SigVal & 0xf];
+ ptr = &GspOutBuffer[0];
- *ptr++ = HexChars[ESP];
- *ptr++ = ':';
-
- Esp = GspGetEspFromTrapFrame (TrapFrame); /* SP */
- ptr = GspMem2Hex ((PCHAR) &Esp, ptr, 4, 0);
- *ptr++ = ';';
-
- *ptr++ = HexChars[EBP];
- *ptr++ = ':';
- ptr = GspMem2Hex ((PCHAR) &TrapFrame->Ebp, ptr, 4, 0); /* FP */
- *ptr++ = ';';
-
- *ptr++ = HexChars[PC];
- *ptr++ = ':';
- ptr = GspMem2Hex((PCHAR) &TrapFrame->Eip, ptr, 4, 0); /* PC */
- *ptr++ = ';';
+ *ptr++ = 'T'; /* notify gdb with signo, PC, FP and SP */
+ *ptr++ = HexChars[(SigVal >> 4) & 0xf];
+ *ptr++ = HexChars[SigVal & 0xf];
- *ptr = '\0';
+ *ptr++ = HexChars[ESP];
+ *ptr++ = ':';
+
+ Esp = GspGetEspFromTrapFrame (TrapFrame); /* SP */
+ ptr = GspMem2Hex ((PCHAR) &Esp, ptr, 4, 0);
+ *ptr++ = ';';
+
+ *ptr++ = HexChars[EBP];
+ *ptr++ = ':';
+ ptr = GspMem2Hex ((PCHAR) &TrapFrame->Ebp, ptr, 4, 0); /* FP */
+ *ptr++ = ';';
+
+ *ptr++ = HexChars[PC];
+ *ptr++ = ':';
+ ptr = GspMem2Hex((PCHAR) &TrapFrame->Eip, ptr, 4, 0); /* PC */
+ *ptr++ = ';';
- GspPutPacket (&GspOutBuffer[0]);
- } else {
- gdb_attached_yet = 1;
- }
+ *ptr = '\0';
+
+ GspPutPacket (&GspOutBuffer[0]);
+ }
+ else
+ {
+ gdb_attached_yet = 1;
+ }
Stepping = FALSE;
@@ -1128,8 +1123,8 @@
switch (*ptr++)
{
case '?':
- /* a little hack to send more complete status information */
- goto stop_reply;
+ /* a little hack to send more complete status information */
+ goto stop_reply;
GspOutBuffer[0] = 'S';
GspOutBuffer[1] = HexChars[SigVal >> 4];
GspOutBuffer[2] = HexChars[SigVal % 16];
@@ -1138,7 +1133,7 @@
case 'd':
GspRemoteDebug = !GspRemoteDebug; /* toggle debug flag */
break;
- case 'g': /* return the value of the CPU Registers */
+ case 'g': /* return the value of the CPU Registers */
if (NULL != GspDbgThread)
{
GspGetRegistersFromTrapFrame (&GspOutBuffer[0], Context, GspDbgThread->Tcb.TrapFrame);
@@ -1148,7 +1143,7 @@
GspGetRegistersFromTrapFrame (&GspOutBuffer[0], Context, TrapFrame);
}
break;
- case 'G': /* set the value of the CPU Registers - return OK */
+ case 'G': /* set the value of the CPU Registers - return OK */
if (NULL != GspDbgThread)
{
GspSetRegistersInTrapFrame (ptr, Context, GspDbgThread->Tcb.TrapFrame);
@@ -1159,7 +1154,7 @@
}
strcpy (GspOutBuffer, "OK");
break;
- case 'P': /* set the value of a single CPU register - return OK */
+ case 'P': /* set the value of a single CPU register - return OK */
{
LONG Register;
@@ -1288,12 +1283,12 @@
break;
}
- case 'k': /* kill the program */
+ case 'k': /* kill the program */
strcpy (GspOutBuffer, "OK");
break;
/* kill the program */
- case 'H': /* Set thread */
+ case 'H': /* Set thread */
GspSetThread (ptr);
break;
@@ -1351,7 +1346,7 @@
default:
break;
- } /* switch */
+ }
/* reply to the request */
GspPutPacket (&GspOutBuffer[0]);
@@ -1411,24 +1406,8 @@
STDCALL
KdpGdbDebugPrint(PCH Message, ULONG Length)
{
-#if 0
- /* This can be quite annoying! */
- if (GspInitialized)
- {
- ULONG Length;
-
- GspOutBuffer[0] = 'O';
- GspOutBuffer[1] = '\0';
- strcat (&GspOutBuffer[0], Message);
- Length = strlen (Message);
- GspOutBuffer[2 + Length] = '\n';
- GspOutBuffer[3 + Length] = '\0';
- GspPutPacketNoWait (&GspOutBuffer[0]);
- }
-#endif
}
-
extern LIST_ENTRY ModuleListHead;
VOID