trace.c File Reference

#include "remods.h"
#include "precomp.h"

Include dependency graph for trace.c:

Go to the source code of this file.

Functions
void	NewInt31Handler (void)
void	DeInstallTraceHook (void)
BOOLEAN	InstallTraceHook (void)
	__asm__ ("\n\t \ NewInt1Handler:\n\t \ pushl %eax\n\t \ movl %dr6,%eax\n\t \ testl $(1<<14),%eax\n\t \ jz exceptionnotsinglestep\n\t \ \n\t \ popl %eax\n\t \ pushl $" STR(REASON_SINGLESTEP) "\n\t \ jmp NewInt31Handler\n\t \ \n\t \ exceptionnotsinglestep:\n\t \ popl %eax\n\t \ pushl $" STR(REASON_HARDWARE_BP) "\n\t \ jmp NewInt31Handler\n\t \ ")

Variables
volatile ULONG	OldInt1Handler =0

Function Documentation

__asm__()

__asm__	(	"\n\t \NewInt1Handler:\n\t \ pushl %eax\n\t \ movl %	dr6,
		%eax\n\t \ testl $	1<< 14,
		%eax\n\t \ jz exceptionnotsinglestep\n\t \\n\t \ popl %eax\n\t \ pushl $" STR(REASON_SINGLESTEP) "\n\t \ jmp NewInt31Handler\n\t \\n\t \exceptionnotsinglestep:\n\t \ popl %eax\n\t \ pushl $" STR(REASON_HARDWARE_BP) "\n\t \ jmp NewInt31Handler\n\t \"
	)

Referenced by InstallTraceHook().

DeInstallTraceHook()

void DeInstallTraceHook

(

void

)

Definition at line 80 of file trace.c.

{
    DPRINT((0,"DeInstallTraceHook(OldInt1Handler=%0.8x)...\n",OldInt1Handler));

    MaskIrqs();
    if(OldInt1Handler)
    {
        SetGlobalInt(0x01,(ULONG)OldInt1Handler);
        OldInt1Handler = 0;
    }
    UnmaskIrqs();
}

Referenced by CleanUpPICE().

InstallTraceHook()

BOOLEAN InstallTraceHook

(

void

)

Definition at line 42 of file trace.c.

{
    ULONG LocalInt1Handler;

    DPRINT((0,"InstallTraceHook(OldInt1Handler=%0.8x)...\n",OldInt1Handler));

    MaskIrqs();
    if(!OldInt1Handler)
    {
        __asm__("mov $NewInt1Handler,%0"
            :"=r" (LocalInt1Handler)
            :
            :"eax");
        OldInt1Handler=SetGlobalInt(0x01,(ULONG)LocalInt1Handler);
    }
    UnmaskIrqs();
    return TRUE;
}

Referenced by InitPICE().

NewInt31Handler()

void NewInt31Handler

(

void

)

Variable Documentation

OldInt1Handler

volatile ULONG OldInt1Handler =0

Definition at line 40 of file trace.c.

Referenced by DeInstallTraceHook(), and InstallTraceHook().