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* i386-nlmstub.c: An interim version till we get PIN for the x86.

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This commit is contained in:
Stu Grossman 1994-04-26 17:24:59 +00:00
parent a66e8382de
commit d0e2b7671e
2 changed files with 73 additions and 22 deletions
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4
gdb/ChangeLog
View File

@ -1,3 +1,7 @@
Tue Apr 26 10:23:04 1994 Stu Grossman (grossman at cygnus.com)
* i386-nlmstub.c: An interim version till we get PIN for the x86.
Tue Apr 26 09:50:45 1994 Stu Grossman (grossman at cygnus.com)
* dbxread.c (record_minimal_symbol): Record the section

91
gdb/i386-nlmstub.c
View File

@ -77,6 +77,7 @@
#include <advanced.h>
#include <debugapi.h>
#include <process.h>
#include <errno.h>
/****************************************************/
/* This information is from Novell. It is not in any of the standard
@ -138,9 +139,6 @@ static char *error_message;
/* The AIO port handle. */
static int AIOhandle;
/* The console screen. */
static int console_screen;
/* BUFMAX defines the maximum number of characters in inbound/outbound
buffers. At least NUMREGBYTES*2 are needed for register packets */
#define BUFMAX 400
@ -161,6 +159,8 @@ enum regnames {EAX, ECX, EDX, EBX, ESP, EBP, ESI, EDI,
/* Register values. */
static int registers[NUMREGBYTES/4];
__main() {};
/* Read a character from the serial port. This must busy wait, but
that's OK because we will be the only thread running anyhow. */
@ -196,12 +196,12 @@ putDebugChar (c)
int err;
LONG put;
err = AIOWriteData (AIOhandle, (char *) &c, 1, &put);
if (err != 0 || put != 1)
put = 0;
while (put < 1)
{
error_message = "AIOWriteData failed";
ResumeThread (mainthread);
return 0;
err = AIOWriteData (AIOhandle, (char *) &c, 1, &put);
if (err != 0)
ConsolePrintf ("AIOWriteData: err = %d, put = %d\r\n", err, put);
}
return 1;
}
@ -593,7 +593,7 @@ handle_exception (T_StackFrame *old_frame)
if (remote_debug)
{
ConsolePrintf ("vector=%d: %s, sr=0x%x, pc=0x%x, thread=%d\r\n",
ConsolePrintf ("vector=%d: %s, sr=%08x, pc=%08x, thread=%08x\r\n",
frame->ExceptionNumber,
frame->ExceptionDescription,
frame->ExceptionSystemFlags,
@ -611,6 +611,11 @@ handle_exception (T_StackFrame *old_frame)
frame->ExceptionErrorCode);
first_insn = *(char *) handle->LDInitializationProcedure;
*(unsigned char *) handle->LDInitializationProcedure = 0xcc;
ConsolePrintf ("NLM offsets/lengths: Code: 0x%x/0x%x, Data: 0x%x/0x%x, BSS: /0x%x\r\n",
handle->LDCodeImageOffset, handle->LDCodeImageLength,
handle->LDDataImageOffset, handle->LDDataImageLength,
handle->LDUninitializedDataLength);
return RETURN_TO_PROGRAM;
}
@ -678,7 +683,7 @@ handle_exception (T_StackFrame *old_frame)
remcomOutBuffer[0] = 'N';
remcomOutBuffer[1] = hexchars[sigval >> 4];
remcomOutBuffer[2] = hexchars[sigval % 16];
sprintf (remcomOutBuffer + 3, "0x%x;0x%x;0x%x",
sprintf (remcomOutBuffer + 3, "%x;%x;%x",
handle->LDCodeImageOffset,
handle->LDDataImageOffset,
handle->LDDataImageOffset + handle->LDDataImageLength);
@ -707,7 +712,7 @@ handle_exception (T_StackFrame *old_frame)
remcomOutBuffer[0] = 'N';
remcomOutBuffer[1] = hexchars[sigval >> 4];
remcomOutBuffer[2] = hexchars[sigval % 16];
sprintf (remcomOutBuffer + 3, "0x%x;0x%x;0x%x",
sprintf (remcomOutBuffer + 3, "%x;%x;%x",
handle->LDCodeImageOffset,
handle->LDDataImageOffset,
handle->LDDataImageOffset + handle->LDDataImageLength);
@ -814,6 +819,16 @@ handle_exception (T_StackFrame *old_frame)
}
}
char *baudRates[] = { "50", "75", "110", "134.5", "150", "300", "600", "1200",
"1800", "2000", "2400", "3600", "4800", "7200", "9600",
"19200", "38400", "57600", "115200" };
char dataBits[] = "5678";
char *stopBits[] = { "1", "1.5", "2" };
char parity[] = "NOEMS";
/* Start up. The main thread opens the named serial I/O port, loads
the named NLM module and then goes to sleep. The serial I/O port
is named as a board number and a port number. It would be more DOS
@ -831,15 +846,18 @@ main (argc, argv)
char *cmdlin;
int i;
/* Create a screen for the debugger. */
console_screen = CreateScreen ("System Console", 0);
if (DisplayScreen (console_screen) != ESUCCESS)
fprintf (stderr, "DisplayScreen failed\n");
/* Use the -B option to invoke the NID if you want to debug the stub. */
if (argc > 1 && strcmp(argv[1], "-B") == 0)
{
Breakpoint(argc);
++argv, --argc;
}
if (argc < 4)
{
fprintf (stderr,
"Usage: load gdbserver board port program [arguments]\n");
"Usage: load gdbserve board port program [arguments]\n");
exit (1);
}
@ -872,13 +890,42 @@ main (argc, argv)
err = AIOConfigurePort (AIOhandle, AIO_BAUD_9600, AIO_DATA_BITS_8,
AIO_STOP_BITS_1, AIO_PARITY_NONE,
AIO_HARDWARE_FLOW_CONTROL_OFF);
if (err != AIO_SUCCESS)
if (err == AIO_QUALIFIED_SUCCESS)
{
AIOPORTCONFIG portConfig;
AIODVRCONFIG dvrConfig;
fprintf (stderr, "Port configuration changed!\n");
AIOGetPortConfiguration (AIOhandle, &portConfig, &dvrConfig);
fprintf (stderr,
" Bit Rate: %s, Data Bits: %c, Stop Bits: %s, Parity: %c,\
Flow:%s\n",
baudRates[portConfig.bitRate],
dataBits[portConfig.dataBits],
stopBits[portConfig.stopBits],
parity[portConfig.parityMode],
portConfig.flowCtrlMode ? "ON" : "OFF");
}
else if (err != AIO_SUCCESS)
{
fprintf (stderr, "Could not configure port: %d\n", err);
AIOReleasePort (AIOhandle);
exit (1);
}
if (AIOSetExternalControl(AIOhandle, AIO_EXTERNAL_CONTROL,
(AIO_EXTCTRL_DTR | AIO_EXTCTRL_RTS))
!= AIO_SUCCESS)
{
LONG extStatus, chgdExtStatus;
fprintf (stderr, "Could not set desired port controls!\n");
AIOGetExternalStatus (AIOhandle, &extStatus, &chgdExtStatus);
fprintf (stderr, "Port controls now: %d, %d\n", extStatus,
chgdExtStatus);
}
/* Register ourselves as an alternate debugger. */
memset (&s, 0, sizeof s);
s.DDSResourceTag = ((struct ResourceTagStructure *)
@ -928,11 +975,11 @@ main (argc, argv)
talking = 0;
if (remote_debug > 0)
ConsolePrintf ("About to call LoadModule with \"%s\" %d %d\r\n",
cmdlin, console_screen, __GetScreenID (console_screen));
ConsolePrintf ("About to call LoadModule with \"%s\" %08x\r\n",
cmdlin, __GetScreenID (GetCurrentScreen()));
/* Start up the module to be debugged. */
err = LoadModule ((struct ScreenStruct *) __GetScreenID (console_screen),
err = LoadModule ((struct ScreenStruct *) __GetScreenID (GetCurrentScreen()),
cmdlin, LO_DEBUG);
if (err != 0)
{
@ -944,10 +991,10 @@ main (argc, argv)
/* Wait for the debugger to wake us up. */
if (remote_debug > 0)
ConsolePrintf ("Suspending main thread (%d)\r\n", mainthread);
ConsolePrintf ("Suspending main thread (%08x)\r\n", mainthread);
SuspendThread (mainthread);
if (remote_debug > 0)
ConsolePrintf ("Resuming main thread (%d)\r\n", mainthread);
ConsolePrintf ("Resuming main thread (%08x)\r\n", mainthread);
/* If we are woken up, print an optional error message, deregister
ourselves and exit. */