118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
/*
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* Debugger stack handling
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*
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* Copyright 1995 Alexandre Julliard
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*/
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#include <stdio.h>
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#include "windows.h"
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#include "debugger.h"
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typedef struct
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{
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WORD bp;
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WORD ip;
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WORD cs;
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} FRAME16;
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typedef struct
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{
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DWORD bp;
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DWORD ip;
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WORD cs;
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} FRAME32;
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/***********************************************************************
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* DEBUG_InfoStack
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*
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* Dump the top of the stack
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*/
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void DEBUG_InfoStack(void)
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{
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DBG_ADDR addr;
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fprintf(stderr,"Stack dump:\n");
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if ((SS_reg(DEBUG_context) == WINE_DATA_SELECTOR) ||
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(GET_SEL_FLAGS(SS_reg(DEBUG_context)) & LDT_FLAGS_32BIT))
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{ /* 32-bit mode */
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addr.seg = 0;
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addr.off = ESP_reg(DEBUG_context);
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DEBUG_ExamineMemory( &addr, 24, 'x' );
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}
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else /* 16-bit mode */
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{
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addr.seg = SS_reg(DEBUG_context);
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addr.off = SP_reg(DEBUG_context);
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DEBUG_ExamineMemory( &addr, 24, 'w' );
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}
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fprintf(stderr,"\n");
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}
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/***********************************************************************
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* DEBUG_BackTrace
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*
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* Display a stack back-trace.
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*/
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void DEBUG_BackTrace(void)
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{
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DBG_ADDR addr;
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int frameno = 0;
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fprintf(stderr,"Backtrace:\n");
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if (SS_reg(DEBUG_context) == WINE_DATA_SELECTOR) /* 32-bit mode */
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{
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addr.seg = 0;
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fprintf(stderr,"%d ",frameno++);
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addr.off = EIP_reg(DEBUG_context);
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DEBUG_PrintAddress( &addr, 32 );
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fprintf( stderr, "\n" );
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addr.off = EBP_reg(DEBUG_context);
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while (addr.off)
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{
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FRAME32 *frame = (FRAME32 *)addr.off;
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if (!DBG_CHECK_READ_PTR( &addr, sizeof(FRAME32) )) return;
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if (!frame->ip) break;
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fprintf(stderr,"%d ",frameno++);
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addr.off = frame->ip;
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DEBUG_PrintAddress( &addr, 32 );
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fprintf( stderr, "\n" );
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addr.off = frame->bp;
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}
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}
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else /* 16-bit mode */
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{
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WORD ss = SS_reg(DEBUG_context), cs = CS_reg(DEBUG_context);
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if (GET_SEL_FLAGS(ss) & LDT_FLAGS_32BIT)
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{
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fprintf( stderr, "Not implemented: 32-bit backtrace on a different stack segment.\n" );
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return;
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}
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fprintf( stderr,"%d ", frameno++ );
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addr.seg = cs;
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addr.off = IP_reg(DEBUG_context);
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DEBUG_PrintAddress( &addr, 16 );
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fprintf( stderr, "\n" );
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addr.seg = ss;
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addr.off = BP_reg(DEBUG_context) & ~1;
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for (;;)
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{
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FRAME16 *frame = (FRAME16 *)DBG_ADDR_TO_LIN(&addr);
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if (!DBG_CHECK_READ_PTR( &addr, sizeof(FRAME16) )) return;
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if (!frame->bp) break;
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if (frame->bp & 1) cs = frame->cs;
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fprintf( stderr,"%d ", frameno++ );
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addr.seg = cs;
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addr.off = frame->ip;
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DEBUG_PrintAddress( &addr, 16 );
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fprintf( stderr, "\n" );
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addr.seg = ss;
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addr.off = frame->bp & ~1;
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}
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}
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fprintf( stderr, "\n" );
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}
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