stacktrace.c File Reference

#include "loadconfig.h"

Include dependency graph for stacktrace.c:

Go to the source code of this file.

Classes
struct	_RTL_PROCESS_BACKTRACE_INFORMATION_32

Typedefs
typedef struct _RTL_PROCESS_BACKTRACE_INFORMATION_32	RTL_PROCESS_BACKTRACE_INFORMATION_32
typedef struct _RTL_PROCESS_BACKTRACE_INFORMATION_32 *	PRTL_PROCESS_BACKTRACE_INFORMATION_32

Functions
NTSTATUS NTAPI	RtlQueryProcessBackTraceInformation (IN OUT PRTL_DEBUG_INFORMATION Buffer)
	__declspec (noinline)
static void	Check_Stacktrace (PVOID *BackTrace, USHORT Depth)
static void	test_QueryBacktrace (PRTL_DEBUG_INFORMATION Buffer1, PRTL_DEBUG_INFORMATION Buffer2)
	START_TEST (stacktrace)

Variables
static PVOID	g_Call_Address
static PVOID	g_PreviousReturnAddress

Typedef Documentation

PRTL_PROCESS_BACKTRACE_INFORMATION_32

typedef struct _RTL_PROCESS_BACKTRACE_INFORMATION_32 * PRTL_PROCESS_BACKTRACE_INFORMATION_32

RTL_PROCESS_BACKTRACE_INFORMATION_32

typedef struct _RTL_PROCESS_BACKTRACE_INFORMATION_32 RTL_PROCESS_BACKTRACE_INFORMATION_32

Function Documentation

__declspec()

__declspec

(

noinline

)

Definition at line 32 of file stacktrace.c.

{
    return _ReturnAddress();
}

Check_Stacktrace()

static void Check_Stacktrace ( PVOID *  BackTrace, USHORT  Depth  )

static

Definition at line 60 of file stacktrace.c.

{
    ok(Depth > 2, "Unexpected Depth: %lu\n", (ULONG)Depth);
    if (Depth > 2)
    {
        ULONG_PTR EndAddress = ((ULONG_PTR)g_Call_Address + 0x20);
        ok(BackTrace[0] >= g_Call_Address && (ULONG_PTR)BackTrace[0] < EndAddress,
           "Unexpected return: %p, expected between %p and %p\n", BackTrace[0], g_Call_Address, (PVOID)EndAddress);
        ok(BackTrace[1] == g_PreviousReturnAddress, "Unexpected return: %p, expected: %p\n",
           BackTrace[1], g_PreviousReturnAddress);
    }
}

Referenced by test_QueryBacktrace().

RtlQueryProcessBackTraceInformation()

NTSTATUS NTAPI RtlQueryProcessBackTraceInformation

(

IN OUT PRTL_DEBUG_INFORMATION

Buffer

)

Referenced by test_QueryBacktrace().

START_TEST()

START_TEST

(

stacktrace

)

Definition at line 142 of file stacktrace.c.

{
    PRTL_DEBUG_INFORMATION Buffer1, Buffer2;
 
    if (!check_loadconfig())
        return;
 
    skip("QueryBacktrace not implemented yet\n");
    return;
 
    Buffer1 = RtlCreateQueryDebugBuffer(0, FALSE);
    ok(Buffer1 != NULL, "Failed!\n");
    if (Buffer1)
    {
        Buffer2 = RtlCreateQueryDebugBuffer(0, FALSE);
        ok(Buffer2 != NULL, "Failed!\n");
        if (Buffer2)
        {
            test_QueryBacktrace(Buffer1, Buffer2);
            RtlDestroyQueryDebugBuffer(Buffer2);
        }
 
        RtlDestroyQueryDebugBuffer(Buffer1);
    }
}

test_QueryBacktrace()

static void test_QueryBacktrace ( PRTL_DEBUG_INFORMATION  Buffer1, PRTL_DEBUG_INFORMATION  Buffer2  )

static

Definition at line 73 of file stacktrace.c.

{
    NTSTATUS Status;
    USHORT StackTrace;
    PRTL_PROCESS_BACKTRACES Backtraces;
    ULONG OldNumberOfBackTraces, n;
    PRTL_PROCESS_BACKTRACE_INFORMATION_32 FirstBacktrace;
    int found = 0;
 
    Status = RtlQueryProcessBackTraceInformation(Buffer1);
    ok_hex(Status, STATUS_SUCCESS);
    if (Status != STATUS_SUCCESS)
        return;
 
    Backtraces = Buffer1->BackTraces;
    ok(Backtraces != NULL, "No BackTraces\n");
    if (!Backtraces)
        return;
 
    OldNumberOfBackTraces = Backtraces->NumberOfBackTraces;
    // Capture a stacktrace
    StackTrace = Call_Backtrace_1();
 
    // Show that the old debugbuffer is not changed
    ok(OldNumberOfBackTraces == Backtraces->NumberOfBackTraces, "Debug buffer changed! (%lu => %lu)\n",
       OldNumberOfBackTraces, Backtraces->NumberOfBackTraces);
 
    // Ask for a new snapshot
    Status = RtlQueryProcessBackTraceInformation(Buffer2);
    ok_hex(Status, STATUS_SUCCESS);
    if (Status != STATUS_SUCCESS)
        return;
 
    Backtraces = Buffer2->BackTraces;
    ok(Backtraces != NULL, "No BackTraces\n");
    if (!Backtraces)
        return;
 
    ok(OldNumberOfBackTraces+1 == Backtraces->NumberOfBackTraces, "Stacktrace not added! (%lu => %lu)\n",
       OldNumberOfBackTraces, Backtraces->NumberOfBackTraces);
 
    FirstBacktrace = (PRTL_PROCESS_BACKTRACE_INFORMATION_32)&Backtraces->BackTraces[0];
    trace("NumberOfBackTraces=%lu\n", Backtraces->NumberOfBackTraces);
    for (n = 0; n < Backtraces->NumberOfBackTraces; ++n)
    {
        PRTL_PROCESS_BACKTRACE_INFORMATION_32 Info = FirstBacktrace + n;
#if 0
        USHORT j;
 
        trace("BackTraces[%02lu]->SymbolicBackTrace = %p\n", n, Info->SymbolicBackTrace);
        trace("BackTraces[%02lu]->TraceCount = %lu\n", n, Info->TraceCount);
        trace("BackTraces[%02lu]->Index = %lu\n", n, (ULONG)Info->Index);
        trace("BackTraces[%02lu]->Depth = %lu\n", n, (ULONG)Info->Depth);
        for (j = 0; j < Info->Depth; ++j)
        {
            trace("BackTraces[%02lu]->BackTrace[%02u] = %p\n", n, j, Info->BackTrace[j]);
        }
        trace("\n");
#endif
        if (Info->Index == StackTrace)
        {
            found = 1;
            Check_Stacktrace(Info->BackTrace, Info->Depth);
        }
    }
    ok(found, "Stacktrace not found :(\n");
}

Referenced by START_TEST().

Variable Documentation

g_Call_Address

PVOID g_Call_Address

static

Definition at line 29 of file stacktrace.c.

Referenced by Check_Stacktrace().

g_PreviousReturnAddress

PVOID g_PreviousReturnAddress

static

Definition at line 30 of file stacktrace.c.

Referenced by Check_Stacktrace().