Skip to content

W
wine-winehq
Commit 69df3719 authored by Ove Kaaven's avatar Ove Kaaven Committed by Alexandre Julliard
Browse files
Options

Made Wine's debugger work satisfactorily with DOS apps.

Perhaps dereferencing work better for Win16 apps too now, but it appears the debugger core wasn't designed for segmentation.
parent a7cf4eec
Show whitespace changes
Inline Side-by-side
Showing with 34 additions and 9 deletions
debugger/break.c
View file @ 69df3719
......@@ -16,6 +16,7 @@
#include "toolhelp.h"
#include "windows.h"
#include "debugger.h"
#include "dosexe.h"
#define INT3 0xcc /* int 3 opcode */
......@@ -97,6 +98,7 @@ static BOOL32 DEBUG_IsStepOverInstr()
/* Handle call instructions */
case 0xcd: /* int <intno> */
case 0xe8: /* call <offset> */
case 0x9a: /* lcall <seg>:<off> */
return TRUE;
......@@ -347,9 +349,9 @@ void DEBUG_AddModuleBreakpoints(void)
if (!(pModule = NE_GetPtr( entry.hModule ))) continue;
if (pModule->flags & NE_FFLAGS_LIBMODULE) continue; /* Library */
if (pModule->dos_image) { /* DOS module */
addr.seg = pModule->cs | ((DWORD)pModule->self << 16);
addr.off = pModule->ip;
if (pModule->lpDosTask) { /* DOS module */
addr.seg = pModule->lpDosTask->init_cs | ((DWORD)pModule->self << 16);
addr.off = pModule->lpDosTask->init_ip;
fprintf( stderr, "DOS task '%s': ", entry.szModule );
DEBUG_AddBreakpoint( &addr );
} else
......
debugger/db_disasm.c
View file @ 69df3719
......@@ -1160,7 +1160,7 @@ void DEBUG_Disasm( DBG_ADDR *addr, int display )
* Set this so we get can supress the printout if we need to.
*/
db_display = display;
db_disasm_16 = !IS_SELECTOR_32BIT(addr->seg);
db_disasm_16 = IS_SELECTOR_V86(addr->seg) || !IS_SELECTOR_32BIT(addr->seg);
get_value_inc( inst, addr, 1, FALSE );
......
debugger/dbg.y
View file @ 69df3719
......@@ -230,8 +230,11 @@ break_command:
DBG_ADDR addr = { NULL,
CS_reg(&DEBUG_context),
EIP_reg(&DEBUG_context) };
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
if (ISV86(&DEBUG_context))
addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
DBG_FIX_ADDR_SEG( &addr, CS_reg(&DEBUG_context) );
GlobalUnlock16( GetCurrentTask() );
DEBUG_FindNearestSymbol(&addr, TRUE,
&nh, 0, NULL);
if( nh != NULL )
......@@ -249,6 +252,10 @@ break_command:
| tBREAK tEOL { DBG_ADDR addr = { NULL,
CS_reg(&DEBUG_context),
EIP_reg(&DEBUG_context) };
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
if (ISV86(&DEBUG_context))
addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
GlobalUnlock16( GetCurrentTask() );
DEBUG_AddBreakpoint( &addr );
}
......
debugger/expr.c
View file @ 69df3719
......@@ -12,6 +12,7 @@
#include <sys/types.h>
#include <neexe.h>
#include "module.h"
#include "task.h"
#include "selectors.h"
#include "debugger.h"
#include "xmalloc.h"
......@@ -494,6 +495,11 @@ DEBUG_EvalExpr(struct expr * exp)
case EXP_OP_SEG:
rtn.seg = VAL(exp1);
exp->un.binop.result = VAL(exp2);
if (ISV86(&DEBUG_context)) {
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
rtn.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
GlobalUnlock16( GetCurrentTask() );
}
break;
case EXP_OP_LOR:
rtn.seg = 0;
......
debugger/source.c
View file @ 69df3719
......@@ -24,6 +24,7 @@
#include "peexe.h"
#include "debugger.h"
#include "peexe.h"
#include "task.h"
#include "xmalloc.h"
struct searchlist
......@@ -492,9 +493,12 @@ DEBUG_Disassemble(const DBG_ADDR *xstart,const DBG_ADDR *xend,int offset)
last = DEBUG_LastDisassemble;
if (!last.seg && !last.off)
{
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
last.seg = CS_reg(&DEBUG_context);
last.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context)) last.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16; else
if (IS_SELECTOR_SYSTEM(last.seg)) last.seg = 0;
GlobalUnlock16( GetCurrentTask() );
}
for (i=0;i<offset;i++)
if (!_disassemble(&last)) break;
......
debugger/types.c
View file @ 69df3719
......@@ -349,18 +349,20 @@ DEBUG_InitTypes()
long long int
DEBUG_GetExprValue(DBG_ADDR * addr, char ** format)
{
DBG_ADDR address = *addr;
unsigned int rtn;
struct datatype * type2 = NULL;
struct en_values * e;
char * def_format = "0x%x";
rtn = 0;
address.seg = 0; /* FIXME? I don't quite get this... */
assert(addr->type != NULL);
switch(addr->type->type)
{
case BASIC:
if (!DBG_CHECK_READ_PTR( addr, addr->type->un.basic.basic_size))
if (!DBG_CHECK_READ_PTR( &address, addr->type->un.basic.basic_size))
{
return 0;
}
......@@ -388,7 +390,7 @@ DEBUG_GetExprValue(DBG_ADDR * addr, char ** format)
}
break;
case POINTER:
if (!DBG_CHECK_READ_PTR( addr, 1 )) return 0;
if (!DBG_CHECK_READ_PTR( &address, 1 )) return 0;
rtn = (unsigned int) *((unsigned char **)addr->off);
type2 = addr->type->un.pointer.pointsto;
if( type2->type == BASIC && type2->un.basic.basic_size == 1 )
......@@ -403,11 +405,12 @@ DEBUG_GetExprValue(DBG_ADDR * addr, char ** format)
break;
case ARRAY:
case STRUCT:
if (!DBG_CHECK_READ_PTR( addr, 1 )) return 0;
if (!DBG_CHECK_READ_PTR( &address, 1 )) return 0;
rtn = (unsigned int) *((unsigned char **)addr->off);
def_format = "0x%8.8x";
break;
case ENUM:
if (!DBG_CHECK_READ_PTR( &address, 1 )) return 0;
rtn = (unsigned int) *((unsigned char **)addr->off);
for(e = addr->type->un.enumeration.members; e; e = e->next )
{
......@@ -442,6 +445,8 @@ DEBUG_GetExprValue(DBG_ADDR * addr, char ** format)
unsigned int
DEBUG_TypeDerefPointer(DBG_ADDR * addr, struct datatype ** newtype)
{
DBG_ADDR address = *addr;
/*
* Make sure that this really makes sense.
*/
......@@ -452,7 +457,8 @@ DEBUG_TypeDerefPointer(DBG_ADDR * addr, struct datatype ** newtype)
}
*newtype = addr->type->un.pointer.pointsto;
return *(unsigned int*) (addr->off);
address.off = *(unsigned int*) (addr->off);
return (unsigned int)DBG_ADDR_TO_LIN(&address); /* FIXME: is this right (or "better") ? */
}
unsigned int
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment