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