2 * Debugger stack handling
4 * Copyright 1995 Alexandre Julliard
28 /***********************************************************************
31 * Dump the top of the stack
33 void DEBUG_InfoStack(void)
37 fprintf(stderr,"Stack dump:\n");
38 if ((SS_reg(DEBUG_context) == WINE_DATA_SELECTOR) ||
39 (GET_SEL_FLAGS(SS_reg(DEBUG_context)) & LDT_FLAGS_32BIT))
42 addr.off = ESP_reg(DEBUG_context);
43 DEBUG_ExamineMemory( &addr, 24, 'x' );
45 else /* 16-bit mode */
47 addr.seg = SS_reg(DEBUG_context);
48 addr.off = SP_reg(DEBUG_context);
49 DEBUG_ExamineMemory( &addr, 24, 'w' );
55 /***********************************************************************
58 * Display a stack back-trace.
60 void DEBUG_BackTrace(void)
65 fprintf(stderr,"Backtrace:\n");
66 if (SS_reg(DEBUG_context) == WINE_DATA_SELECTOR) /* 32-bit mode */
69 fprintf(stderr,"%d ",frameno++);
70 addr.off = EIP_reg(DEBUG_context);
71 DEBUG_PrintAddress( &addr, 32 );
72 fprintf( stderr, "\n" );
73 addr.off = EBP_reg(DEBUG_context);
76 FRAME32 *frame = (FRAME32 *)addr.off;
77 if (!DBG_CHECK_READ_PTR( &addr, sizeof(FRAME32) )) return;
78 if (!frame->ip) break;
79 fprintf(stderr,"%d ",frameno++);
81 DEBUG_PrintAddress( &addr, 32 );
82 fprintf( stderr, "\n" );
86 else /* 16-bit mode */
88 WORD ss = SS_reg(DEBUG_context), cs = CS_reg(DEBUG_context);
89 if (GET_SEL_FLAGS(ss) & LDT_FLAGS_32BIT)
91 fprintf( stderr, "Not implemented: 32-bit backtrace on a different stack segment.\n" );
94 fprintf( stderr,"%d ", frameno++ );
96 addr.off = IP_reg(DEBUG_context);
97 DEBUG_PrintAddress( &addr, 16 );
98 fprintf( stderr, "\n" );
100 addr.off = BP_reg(DEBUG_context) & ~1;
103 FRAME16 *frame = (FRAME16 *)DBG_ADDR_TO_LIN(&addr);
104 if (!DBG_CHECK_READ_PTR( &addr, sizeof(FRAME16) )) return;
105 if (!frame->bp) break;
106 if (frame->bp & 1) cs = frame->cs;
107 fprintf( stderr,"%d ", frameno++ );
109 addr.off = frame->ip;
110 DEBUG_PrintAddress( &addr, 16 );
111 fprintf( stderr, "\n" );
113 addr.off = frame->bp & ~1;
116 fprintf( stderr, "\n" );