+++ /dev/null
-/*++
-
-Copyright (c) 1998-2001 Klaus P. Gerlicher
-
-Module Name:
-
- output.c
-
-Abstract:
-
- catch debugging outputs
-
-Environment:
-
- Kernel mode only
-
-Author:
-
- Klaus P. Gerlicher
-
-Revision History:
-
- 14-Nov-1999: created
- 15-Nov-2000: general cleanup of source files
-
-Copyright notice:
-
- This file may be distributed under the terms of the GNU Public License.
-
---*/
-
-////////////////////////////////////////////////////
-// INCLUDES
-////
-#include "remods.h"
-#include "precomp.h"
-/*
-#include <linux/sched.h>
-#include <asm/io.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <linux/utsname.h>
-#include <linux/sched.h>
-#include <linux/console.h>
-#include <asm/delay.h>
-*/
-
-char tempOutput[1024],tempOutput2[1024];
-
-//ULONG ulPrintk=0;
-
-ULONG (*ulPrintk) (PANSI_STRING String);
-
-BOOLEAN bInPrintk = FALSE;
-BOOLEAN bIsDebugPrint = FALSE;
-BOOLEAN bIsPrintkPatched = FALSE;
-
-ULONG ulCountTimerEvents = 0;
-
-#ifdef __cplusplus
-#define CPP_ASMLINKAGE extern "C"
-#else
-#define CPP_ASMLINKAGE
-#endif
-#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
-
-asmlinkage int printk(const char *fmt, ...);
-
-//EXPORT_SYMBOL(printk);
-
-//*************************************************************************
-// printk()
-//
-// this function overrides printk() in the kernel
-//*************************************************************************
-asmlinkage int printk(const char *fmt, ...)
-{
- ULONG len,ulRingBufferLock;
- static LONGLONG ulOldJiffies = 0;
- LARGE_INTEGER jiffies;
-
- va_list args;
- va_start(args, fmt);
-
- if((len = PICE_strlen((LPSTR)fmt)) )
- {
- save_flags(ulRingBufferLock);
- cli();
-
- PICE_vsprintf(tempOutput, fmt, args);
- bIsDebugPrint = TRUE;
- // if the last debug print was longer than 50 ms ago
- // directly print it, else just add it to the ring buffer
- // and let the timer process it.
- KeQuerySystemTime(&jiffies);
- if( (jiffies.QuadPart-ulOldJiffies) > 10000*(1*wWindow[OUTPUT_WINDOW].cy)/2)
- {
- ulOldJiffies = jiffies.QuadPart;
- Print(OUTPUT_WINDOW,tempOutput);
- }
- else
- {
- AddToRingBuffer(tempOutput);
- }
-
- bIsDebugPrint = FALSE;
- restore_flags(ulRingBufferLock);
- }
- va_end(args);
-
- return 0;
-}
-
-//*************************************************************************
-// CountArgs()
-//
-// count occurrence of '%' in format string (except %%)
-// validity of whole format string must have been enforced
-//*************************************************************************
-ULONG CountArgs(LPSTR fmt)
-{
- ULONG count=0;
-
- while(*fmt)
- {
- if(*fmt=='%' && *(fmt+1)!='%')
- count++;
- fmt++;
- }
- return count;
-}
-
-//***********************************************************************************
-// Our replacement of kernel function.
-// Must not make any calls to KdpPrintString (e.g. by calling DbgPrint).
-//***********************************************************************************
-ULONG PICE_KdpPrintString(PANSI_STRING String)
-{
- ULONG ulRingBufferLock;
-
- save_flags(ulRingBufferLock);
- cli();
-
- /* CH: What is bIsDebugPrint used for? */
- bIsDebugPrint = FALSE;
-
- DPRINT((0,"PICE_KdpPrintString\n\n\n"));
- AddToRingBuffer(String->Buffer);
- restore_flags(ulRingBufferLock);
-}
-//*************************************************************************
-// PrintkCallback()
-//
-// called from RealIsr() when processing INT3 placed
-// Must not make any calls to KdpPrintString (e.g. by calling DbgPrint).
-//*************************************************************************
-void PrintkCallback(void)
-{
- LPSTR fmt,args;
- ULONG ulAddress;
- ULONG countArgs,i,len;
- PANSI_STRING temp;
- CHAR buf[128];
-
- DPRINT((0,"In PrintkCallback\n"));
-
- bInPrintk = TRUE;
-
- // get the linear address of stack where string resides
- ulAddress = GetLinearAddress(CurrentSS,CurrentESP);
- if(ulAddress)
- {
- DPRINT((0,"In PrintkCallback: ulAddress: %x\n", ulAddress));
- if(IsAddressValid(ulAddress+sizeof(char *)) )
- {
- //KdpPrintString has PANSI_STRING as a parameter
- temp = (PANSI_STRING)*(PULONG)(ulAddress+sizeof(char *));
- DPRINT((0,"PrintkCallback: %s\n", temp->Buffer));
- /* Call our version of KdpPrintString() */
- CurrentEIP = (ULONG_PTR)PICE_KdpPrintString;
- }
- }
- bInPrintk = FALSE;
-}
-
-//*************************************************************************
-// PiceRunningTimer()
-//
-//*************************************************************************
-
-KTIMER PiceTimer;
-KDPC PiceTimerDPC;
-
-// do I need it here? Have to keep DPC memory resident #pragma code_seg()
-VOID PiceRunningTimer(IN PKDPC Dpc,
- IN PVOID DeferredContext,
- IN PVOID SystemArgument1,
- IN PVOID SystemArgument2)
-{
- CheckRingBuffer();
-
- if(ulCountTimerEvents++ > 10)
- {
- LARGE_INTEGER jiffies;
-
- ulCountTimerEvents = 0;
-
- KeQuerySystemTime(&jiffies);
- SetForegroundColor(COLOR_TEXT);
- SetBackgroundColor(COLOR_CAPTION);
- PICE_sprintf(tempOutput,"jiffies = %.8X\n",jiffies.u.LowPart);
- PutChar(tempOutput,GLOBAL_SCREEN_WIDTH-strlen(tempOutput),GLOBAL_SCREEN_HEIGHT-1);
- ResetColor();
- }
-}
-
-//*************************************************************************
-// InitPiceRunningTimer()
-//
-//*************************************************************************
-void InitPiceRunningTimer(void)
-{
- LARGE_INTEGER Interval;
-
- ENTER_FUNC();
-#if 0 //won't work. we have to intercept timer interrupt so dpc will never fire while we are in pice
- KeInitializeTimer( &PiceTimer );
- KeInitializeDpc( &PiceTimerDPC, PiceRunningTimer, NULL );
-
- Interval.QuadPart=-1000000L; // 100 millisec. (unit is 100 nanosec.)
-
- KeSetTimerEx(&PiceTimer,
- Interval, 1000000L,
- &PiceTimerDpc);
-#endif
- LEAVE_FUNC();
-}
-
-//*************************************************************************
-// RemovePiceRunningTimer()
-//
-//*************************************************************************
-void RemovePiceRunningTimer(void)
-{
- KeCancelTimer( &PiceTimer );
-}
-
-//*************************************************************************
-// InstallPrintkHook()
-//
-//*************************************************************************
-void InstallPrintkHook(void)
-{
-
- ENTER_FUNC();
-
- if( bIsPrintkPatched )
- return;
-
- DPRINT((0,"installing PrintString hook\n"));
- ScanExports("_KdpPrintString",(PULONG)&ulPrintk);
-
- DPRINT((0,"_KdpPrintString @ %x\n", ulPrintk));
- ASSERT( ulPrintk ); // temporary
- if(ulPrintk)
- {
- bIsPrintkPatched = InstallSWBreakpoint(ulPrintk,TRUE,PrintkCallback);
- DPRINT((0,"KdpPrintStringTest breakpoint installed? %d\n", bIsPrintkPatched));
- }
-
- LEAVE_FUNC();
-}
-
-//*************************************************************************
-// DeInstallPrintkHook()
-//
-//*************************************************************************
-void DeInstallPrintkHook(void)
-{
- ENTER_FUNC();
-
- DPRINT((0,"enter DeInstallPrintkHook()\n"));
- if(bIsPrintkPatched && ulPrintk)
- {
- // will be done on exit debugger
- if (DeInstallSWBreakpoint(ulPrintk))
- bIsPrintkPatched = FALSE;
- }
- LEAVE_FUNC();
-}
projects / reactos.git / blobdiff