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Annotation of mstools/samples/sdktools/image/drwatson/i386/context.c, revision 1.1

1.1     ! root        1: /*++
        !             2: 
        !             3: Copyright (c) 1993  Microsoft Corporation
        !             4: 
        !             5: Module Name:
        !             6: 
        !             7:     context.c
        !             8: 
        !             9: Abstract:
        !            10: 
        !            11:     This file provides access to thread context information.
        !            12: 
        !            13: Author:
        !            14: 
        !            15:     Wesley Witt (wesw) 1-May-1993
        !            16: 
        !            17: Environment:
        !            18: 
        !            19:     User Mode
        !            20: 
        !            21: --*/
        !            22: 
        !            23: #include <windows.h>
        !            24: #include <stdlib.h>
        !            25: #include <stdio.h>
        !            26: #include <string.h>
        !            27: 
        !            28: #include "drwatson.h"
        !            29: #include "proto.h"
        !            30: 
        !            31: 
        !            32: void
        !            33: GetContextForThread( PDEBUGPACKET dp )
        !            34: {
        !            35:     PTHREADCONTEXT ptctx = dp->tctx;
        !            36: 
        !            37:     memset(&ptctx->context,0,sizeof(CONTEXT));
        !            38: 
        !            39:     ptctx->context.ContextFlags = CONTEXT_FULL |
        !            40:                                   CONTEXT_FLOATING_POINT |
        !            41:                                   CONTEXT_DEBUG_REGISTERS;
        !            42: 
        !            43:     if (!GetThreadContext( ptctx->hThread, &ptctx->context )) {
        !            44:         lprintfs( ">>>>> GetThreadContext failed: err(%d), hthread(0x%x)\n",
        !            45:                   GetLastError(), ptctx->hThread );
        !            46:         ptctx->pc = 0;
        !            47:         ptctx->frame = 0;
        !            48:         ptctx->stack = 0;
        !            49:         ptctx->mi = NULL;
        !            50:     }
        !            51:     else {
        !            52:         ptctx->pc = ptctx->context.Eip;
        !            53:         ptctx->frame = ptctx->context.Ebp;
        !            54:         ptctx->stack = ptctx->context.Esp;
        !            55:         ptctx->mi = GetModuleForPC( dp, ptctx->pc );
        !            56:     }
        !            57: 
        !            58:     return;
        !            59: }

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