From d0e2b7671eeebaa0e3312a4c28c4d740dd4e019e Mon Sep 17 00:00:00 2001 From: Stu Grossman Date: Tue, 26 Apr 1994 17:24:59 +0000 Subject: [PATCH] * i386-nlmstub.c: An interim version till we get PIN for the x86. --- gdb/ChangeLog | 4 ++ gdb/i386-nlmstub.c | 91 +++++++++++++++++++++++++++++++++++----------- 2 files changed, 73 insertions(+), 22 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 43e32c6fe62..4dfeea04e2e 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -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 diff --git a/gdb/i386-nlmstub.c b/gdb/i386-nlmstub.c index 174a00b071d..b50dd85d2a3 100644 --- a/gdb/i386-nlmstub.c +++ b/gdb/i386-nlmstub.c @@ -77,6 +77,7 @@ #include #include #include +#include /****************************************************/ /* 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. */ -- 2.30.2