bool
LXDevice::EnableNanoNMEA(OperationEnvironment &env)
{
return IsV7()
? EnablePassThrough(env)
: true;
}
bool
LXDevice::EnableCommandMode(OperationEnvironment &env)
{
{
ScopeLock protect(mutex);
if (mode == Mode::COMMAND)
return true;
}
port.StopRxThread();
if (!EnablePassThrough(env)) {
mode = Mode::UNKNOWN;
return false;
}
/* make sure the pass-through command has been sent to the device
before we continue sending commands */
port.Drain();
if (bulk_baud_rate != 0) {
old_baud_rate = port.GetBaudrate();
if (old_baud_rate == bulk_baud_rate)
old_baud_rate = 0;
else if (old_baud_rate != 0) {
/* before changing the baud rate, we need an additional delay,
because Port::Drain() does not seem to work reliably on Linux
with a USB-RS232 converter; with a V7+Nano, 100ms is more
than enough */
env.Sleep(100);
if (!port.SetBaudrate(bulk_baud_rate)) {
mode = Mode::UNKNOWN;
return false;
}
}
} else
old_baud_rate = 0;
if (!LX::CommandMode(port, env)) {
if (old_baud_rate != 0) {
port.SetBaudrate(old_baud_rate);
old_baud_rate = 0;
}
ScopeLock protect(mutex);
mode = Mode::UNKNOWN;
return false;
}
busy = false;
ScopeLock protect(mutex);
mode = Mode::COMMAND;
return true;
}
//*************************************************************************
// InitPICE()
//
//*************************************************************************
BOOLEAN InitPICE(void)
{
ULONG ulHandleScancode=0,ulHandleKbdEvent=0;
ARGS Args;
KIRQL Dirql;
KAFFINITY Affinity;
ULONG ulAddr;
ENTER_FUNC();
DPRINT((0,"InitPICE(): trace step 0.5\n"));
KeyboardIRQL = HalGetInterruptVector(Internal,
0,
0,
KEYBOARD_IRQ,
&Dirql,
&Affinity);
DPRINT((0,"KeyboardIRQL: %x\n", KeyboardIRQL));
DPRINT((0,"InitPICE(): trace step 1\n"));
// enable monochrome passthrough on BX type chipset
EnablePassThrough();
DPRINT((0,"InitPICE(): trace step 2\n"));
// now load all symbol files described in /etc/pice.conf
if(!LoadSymbolsFromConfig(FALSE))
{
DPRINT((0,"InitPICE: LoadSymbolsFromConfig() failed\n"));
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 3\n"));
// init the output console
// this might be one of the following depending setup
// a) monochrome card
// b) serial terminal (TODO)
if(!ConsoleInit())
{
DPRINT((0,"InitPICE: ConsoleInit() failed\n"));
UnloadSymbols();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 4\n"));
// print the initial screen template
PrintTemplate();
/*
DPRINT((0,"InitPICE(): trace step 5\n"));
// ask the user if he wants to abort the debugger load
if(!CheckLoadAbort())
{
Print(OUTPUT_WINDOW,"pICE: ABORT (abort by user)\n");
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
*/
DPRINT((0,"InitPICE(): trace step 6\n"));
// load the file /boot/System.map.
// !!! It must be consistent with the current kernel at all cost!!!
if(!LoadExports())
{
Print(OUTPUT_WINDOW,"pICE: failed to load exports\n");
Print(OUTPUT_WINDOW,"press any key to continue...\n");
while(!GetKeyPolled());
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 7\n"));
ScanExports("_KernelAddressSpace", &ulAddr);
my_init_mm = (PMADDRESS_SPACE) ulAddr;
DPRINT((0,"init_mm %x @ %x\n",&my_init_mm,my_init_mm));
if(!my_init_mm)
{
Print(OUTPUT_WINDOW,"pICE: ABORT (initial memory map not found)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
DbgPrint("pICE: ABORT (initial memory map not found)\n");
DbgPrint("pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 7.1\n"));
ScanExports("_ModuleListHead",&ulAddr);
pModuleListHead = (LIST_ENTRY*)ulAddr;
DPRINT((0,"pModuleListHead @ %X\n",pModuleListHead));
if(!pModuleListHead)
{
Print(OUTPUT_WINDOW,"pICE: ABORT (pModuleListHead not found)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 7.2\n"));
ScanExports("_PsProcessListHead",&ulAddr);
pPsProcessListHead = (LIST_ENTRY*)ulAddr;
DPRINT((0,"pPsProcessListHead @ %X\n",pPsProcessListHead));
if(!pPsProcessListHead)
{
Print(OUTPUT_WINDOW,"pICE: ABORT (PsProcessListHead not found)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 8\n"));
// end of the kernel
/*
ScanExports("_end",(PULONG)&kernel_end);
if(!kernel_end)
{
Print(OUTPUT_WINDOW,"pICE: ABORT (kernel size is unknown)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadExports();
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
*/
DPRINT((0,"InitPICE(): trace step 9\n"));
// the loaded module list
ScanExports("_NameSpaceRoot", &ulAddr);
pNameSpaceRoot = (PDIRECTORY_OBJECT *)ulAddr;
DPRINT((0,"pNameSpaceRoot @ %X\n",pNameSpaceRoot));
if(!pNameSpaceRoot)
{
Print(OUTPUT_WINDOW,"pICE: ABORT (couldn't retreive name space root)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadExports();
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 10\n"));
// setup a linked list for use in module parsing routines.
if(!InitModuleList(&pdebug_module_head, 100))
{
Print(OUTPUT_WINDOW,"pICE: ABORT (couldn't initialize kernel module list)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
FreeModuleList( pdebug_module_head );
while(!GetKeyPolled());
UnloadExports();
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
pdebug_module_tail = pdebug_module_head;
DPRINT((0,"InitPICE(): trace step 11\n"));
// do a sanity check on exports
if(!SanityCheckExports())
{
Print(OUTPUT_WINDOW,"pICE: ABORT (exports are conflicting with kernel symbols)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadExports();
UnloadSymbols();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 12\n"));
DPRINT((0,"InitPICE(): trace step 13\n"));
// patch the keyboard driver
if(!PatchKeyboardDriver())
{
Print(OUTPUT_WINDOW,"pICE: ABORT (couldn't patch keyboard driver)\n");
Print(OUTPUT_WINDOW,"pICE: press any key to continue...\n");
while(!GetKeyPolled());
UnloadSymbols();
UnloadExports();
ConsoleShutdown();
LEAVE_FUNC();
return FALSE;
}
DPRINT((0,"InitPICE(): trace step 14\n"));
// partial init of shadow registers
CurrentCS = GLOBAL_CODE_SEGMENT;
CurrentEIP = (ULONG)RealIsr;
CurrentDS = CurrentSS = GLOBAL_DATA_SEGMENT;
__asm__("\n\t \
mov %%esp,%%eax\n\t \
mov %%eax,_CurrentESP\n\t \
":::"eax");
// display version and symbol information
Ver(NULL);
// disable HW breakpoints
__asm__("\n\t \
xorl %%eax,%%eax\n\t \
mov %%eax,%%dr6\n\t \
mov %%eax,%%dr7\n\t \
mov %%dr0,%%eax\n\t \
mov %%dr1,%%eax\n\t \
mov %%dr2,%%eax\n\t \
mov %%dr3,%%eax"
:::"eax"
);
DPRINT((0,"InitPICE(): trace step 15\n"));
TakeIdtSnapshot();
DPRINT((0,"InitPICE(): trace step 16\n"));
// install all hooks
InstallTraceHook();
InstallGlobalKeyboardHook();
InstallSyscallHook();
InstallInt3Hook();
InstallDblFltHook();
InstallGPFaultHook();
InstallIntEHook();
InstallPrintkHook();
DPRINT((0,"InitPICE(): trace step 16\n"));
if(ulDoInitialBreak)
{
DPRINT((0,"about to do initial break...\n"));
// simulate an initial break
__asm__("\n\t \
pushfl\n\t \
pushl %cs\n\t \
pushl $initialreturnpoint\n\t \
pushl $" STR(REASON_CTRLF) "\n\t \
jmp NewInt31Handler\n\t \
initialreturnpoint:");
}
else
{
