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Made debugger compile and marginally work on non-Intel archs.

This commit is contained in:
Ulrich Weigand 1999-11-13 20:58:45 +00:00 committed by Alexandre Julliard
parent 6bba78e1e7
commit b3ec4b91af
10 changed files with 124 additions and 63 deletions
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45
debugger/break.c
View File

@ -76,6 +76,7 @@ static void DEBUG_SetOpcode( const DBG_ADDR *addr, BYTE op )
*/
static BOOL DEBUG_IsStepOverInstr()
{
#ifdef __i386__
BYTE *instr = (BYTE *)CTX_SEG_OFF_TO_LIN( &DEBUG_context,
CS_reg(&DEBUG_context),
EIP_reg(&DEBUG_context) );
@ -133,6 +134,9 @@ static BOOL DEBUG_IsStepOverInstr()
return FALSE;
}
}
#else
return FALSE;
#endif
}
@ -144,6 +148,7 @@ static BOOL DEBUG_IsStepOverInstr()
*/
BOOL DEBUG_IsFctReturn(void)
{
#ifdef __i386__
BYTE *instr = (BYTE *)CTX_SEG_OFF_TO_LIN( &DEBUG_context,
CS_reg(&DEBUG_context),
EIP_reg(&DEBUG_context) );
@ -159,6 +164,9 @@ BOOL DEBUG_IsFctReturn(void)
return FALSE;
}
}
#else
return FALSE;
#endif
}
@ -391,18 +399,13 @@ BOOL DEBUG_ShouldContinue( enum exec_mode mode, int * count )
DBG_ADDR cond_addr;
int bpnum;
struct list_id list;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
#ifdef __i386__
/* If not single-stepping, back up over the int3 instruction */
if (!(EFL_reg(&DEBUG_context) & STEP_FLAG)) EIP_reg(&DEBUG_context)--;
#endif
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context)) addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16; else
if (IS_SELECTOR_SYSTEM(addr.seg)) addr.seg = 0;
GlobalUnlock16( GetCurrentTask() );
DEBUG_GetCurrentAddress( &addr );
bpnum = DEBUG_FindBreakpoint( &addr );
breakpoints[0].enabled = 0; /* disable the step-over breakpoint */
@ -493,10 +496,12 @@ BOOL DEBUG_ShouldContinue( enum exec_mode mode, int * count )
}
}
#ifdef __i386__
/* If there's no breakpoint and we are not single-stepping, then we */
/* must have encountered an int3 in the Windows program; let's skip it. */
if ((bpnum == -1) && !(EFL_reg(&DEBUG_context) & STEP_FLAG))
EIP_reg(&DEBUG_context)++;
#endif
/* no breakpoint, continue if in continuous mode */
return (mode == EXEC_CONT || mode == EXEC_PASS || mode == EXEC_FINISH);
@ -516,17 +521,10 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
int bp;
int delta;
int status;
unsigned int * value;
enum exec_mode ret_mode;
BYTE *instr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context)) addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16; else
if (IS_SELECTOR_SYSTEM(addr.seg)) addr.seg = 0;
GlobalUnlock16( GetCurrentTask() );
DEBUG_GetCurrentAddress( &addr );
/*
* This is the mode we will be running in after we finish. We would like
@ -559,9 +557,7 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
mode = ret_mode = EXEC_STEPI_INSTR;
}
instr = (BYTE *)CTX_SEG_OFF_TO_LIN( &DEBUG_context,
CS_reg(&DEBUG_context),
EIP_reg(&DEBUG_context) );
instr = DBG_ADDR_TO_LIN( &addr );
/*
* See if the function we are stepping into has debug info
* and line numbers. If not, then we step over it instead.
@ -615,7 +611,9 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
{
case EXEC_CONT: /* Continuous execution */
case EXEC_PASS: /* Continue, passing exception */
#ifdef __i386__
EFL_reg(&DEBUG_context) &= ~STEP_FLAG;
#endif
DEBUG_SetBreakpoints( TRUE );
break;
@ -626,9 +624,10 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
* off the stack, and we set the breakpoint there instead of the
* address just after the call.
*/
value = (unsigned int *) ESP_reg(&DEBUG_context) + 2;
addr.off = *value;
#ifdef __i386__
addr.off = *((unsigned int *) ESP_reg(&DEBUG_context) + 2);
EFL_reg(&DEBUG_context) &= ~STEP_FLAG;
#endif
breakpoints[0].addr = addr;
breakpoints[0].enabled = TRUE;
breakpoints[0].in_use = TRUE;
@ -642,7 +641,9 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
case EXEC_STEP_OVER: /* Stepping over a call */
if (DEBUG_IsStepOverInstr())
{
#ifdef __i386__
EFL_reg(&DEBUG_context) &= ~STEP_FLAG;
#endif
DEBUG_Disasm(&addr, FALSE);
breakpoints[0].addr = addr;
breakpoints[0].enabled = TRUE;
@ -656,7 +657,9 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
case EXEC_STEP_INSTR: /* Single-stepping an instruction */
case EXEC_STEPI_INSTR: /* Single-stepping an instruction */
#ifdef __i386__
EFL_reg(&DEBUG_context) |= STEP_FLAG;
#endif
break;
}
return ret_mode;

11
debugger/db_disasm.c
View File

@ -65,6 +65,8 @@
#include <stdio.h>
#include "debugger.h"
#ifdef __i386__
/*
* Switch to disassemble 16-bit code.
*/
@ -1611,3 +1613,12 @@ void DEBUG_Disasm( DBG_ADDR *addr, int display )
}
}
}
#else /* __i386__ */
void DEBUG_Disasm( DBG_ADDR *addr, int display )
{
}
#endif /* __i386__ */

46
debugger/dbg.y
View File

@ -252,16 +252,7 @@ break_command:
}
| tBREAK tNUM tEOL { struct name_hash *nh;
DBG_ADDR addr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.type = NULL;
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context))
addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
DBG_FIX_ADDR_SEG( &addr, CS_reg(&DEBUG_context) );
GlobalUnlock16( GetCurrentTask() );
DEBUG_GetCurrentAddress( &addr );
DEBUG_FindNearestSymbol(&addr, TRUE,
&nh, 0, NULL);
if( nh != NULL )
@ -277,15 +268,7 @@ break_command:
}
| tBREAK tEOL { DBG_ADDR addr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.type = NULL;
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context))
addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
GlobalUnlock16( GetCurrentTask() );
DEBUG_GetCurrentAddress( &addr );
DEBUG_AddBreakpoint( &addr );
}
@ -495,11 +478,15 @@ static void DEBUG_Main( BOOL is_debug )
if (!is_debug)
{
#ifdef __i386__
if (IS_SELECTOR_SYSTEM(CS_reg(&DEBUG_context)))
fprintf( stderr, " in 32-bit code (0x%08lx).\n", EIP_reg(&DEBUG_context));
else
fprintf( stderr, " in 16-bit code (%04x:%04lx).\n",
(WORD)CS_reg(&DEBUG_context), EIP_reg(&DEBUG_context) );
#else
fprintf( stderr, " (%p).\n", GET_IP(&DEBUG_context) );
#endif
}
if (!loaded_symbols)
@ -562,22 +549,18 @@ static void DEBUG_Main( BOOL is_debug )
if (!is_debug || !DEBUG_ShouldContinue( dbg_exec_mode, &dbg_exec_count ))
{
DBG_ADDR addr;
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr.seg = CS_reg(&DEBUG_context);
addr.off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context)) addr.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
addr.type = NULL;
DBG_FIX_ADDR_SEG( &addr, 0 );
GlobalUnlock16( GetCurrentTask() );
DEBUG_GetCurrentAddress( &addr );
DEBUG_Freeze( TRUE );
/* Put the display in a correct state */
USER_Driver->pBeginDebugging();
#ifdef __i386__
newmode = ISV86(&DEBUG_context) ? 16 : IS_SELECTOR_32BIT(addr.seg) ? 32 : 16;
#else
newmode = 32;
#endif
if (newmode != dbg_mode)
fprintf(stderr,"In %d bit mode.\n", dbg_mode = newmode);
@ -587,6 +570,7 @@ static void DEBUG_Main( BOOL is_debug )
{
DEBUG_InfoRegisters();
DEBUG_InfoStack();
#ifdef __i386__
if (dbg_mode == 16)
{
LDT_Print( SELECTOR_TO_ENTRY(DS_reg(&DEBUG_context)), 1 );
@ -594,6 +578,7 @@ static void DEBUG_Main( BOOL is_debug )
LDT_Print( SELECTOR_TO_ENTRY(ES_reg(&DEBUG_context)), 1 );
}
LDT_Print( SELECTOR_TO_ENTRY(FS_reg(&DEBUG_context)), 1 );
#endif
DEBUG_BackTrace();
}
else
@ -626,9 +611,8 @@ static void DEBUG_Main( BOOL is_debug )
issue_prompt();
yyparse();
flush_symbols();
addr.seg = CS_reg(&DEBUG_context) | (addr.seg&0xffff0000);
addr.off = EIP_reg(&DEBUG_context);
DBG_FIX_ADDR_SEG( &addr, 0 );
DEBUG_GetCurrentAddress( &addr );
ret_ok = DEBUG_ValidateRegisters();
if (ret_ok) ret_ok = DBG_CHECK_READ_PTR( &addr, 1 );
} while (!ret_ok);

4
debugger/expr.c
View File

@ -417,10 +417,12 @@ DEBUG_EvalExpr(struct expr * exp)
rtn.type = DEBUG_TypeIntConst;
exp->un.rgister.result = DEBUG_GetRegister(exp->un.rgister.reg);
rtn.off = (unsigned int) &exp->un.rgister.result;
#ifdef __i386__
if( exp->un.rgister.reg == REG_EIP )
rtn.seg = CS_reg(&DEBUG_context);
else
rtn.seg = DS_reg(&DEBUG_context);
#endif
DBG_FIX_ADDR_SEG( &rtn, 0 );
break;
case EXPR_TYPE_BINOP:
@ -494,11 +496,13 @@ DEBUG_EvalExpr(struct expr * exp)
case EXP_OP_SEG:
rtn.seg = VAL(exp1);
exp->un.binop.result = VAL(exp2);
#ifdef __i386__
if (ISV86(&DEBUG_context)) {
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
rtn.seg |= (DWORD)(pTask?(pTask->hModule):0)<<16;
GlobalUnlock16( GetCurrentTask() );
}
#endif
break;
case EXP_OP_LOR:
rtn.seg = 0;

5
debugger/hash.c
View File

@ -23,6 +23,7 @@
#define PATH_MAX _MAX_PATH
#endif
#ifdef __i386__
static char * reg_name[] =
{
"eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi"
@ -35,6 +36,10 @@ static unsigned reg_ofs[] =
FIELD_OFFSET(CONTEXT, Esp), FIELD_OFFSET(CONTEXT, Ebp),
FIELD_OFFSET(CONTEXT, Esi), FIELD_OFFSET(CONTEXT, Edi)
};
#else
static char * reg_name[] = { NULL }; /* FIXME */
static unsigned reg_ofs[] = { 0 };
#endif
struct name_hash

4
debugger/memory.c
View File

@ -115,6 +115,7 @@ BOOL DEBUG_checkmap_bad( const char *addr, size_t size, int rwflag)
*/
BOOL DEBUG_IsBadReadPtr( const DBG_ADDR *address, int size )
{
#ifdef __i386__
if (!IS_SELECTOR_V86(address->seg))
if (address->seg) /* segmented addr */
{
@ -122,6 +123,7 @@ BOOL DEBUG_IsBadReadPtr( const DBG_ADDR *address, int size )
(WORD)address->seg ), size ))
return TRUE;
}
#endif
return DEBUG_checkmap_bad( DBG_ADDR_TO_LIN(address), size, 1);
}
@ -133,6 +135,7 @@ BOOL DEBUG_IsBadReadPtr( const DBG_ADDR *address, int size )
*/
BOOL DEBUG_IsBadWritePtr( const DBG_ADDR *address, int size )
{
#ifdef __i386__
if (!IS_SELECTOR_V86(address->seg))
if (address->seg) /* segmented addr */
{
@ -142,6 +145,7 @@ BOOL DEBUG_IsBadWritePtr( const DBG_ADDR *address, int size )
(WORD)address->seg ), size ))
return TRUE;
}
#endif
return DEBUG_checkmap_bad( DBG_ADDR_TO_LIN(address), size, 0);
}

20
debugger/registers.c
View File

@ -19,6 +19,7 @@ CONTEXT DEBUG_context;
*/
void DEBUG_SetRegister( enum debug_regs reg, int val )
{
#ifdef __i386__
switch(reg)
{
case REG_EAX: EAX_reg(&DEBUG_context) = val; break;
@ -48,12 +49,14 @@ void DEBUG_SetRegister( enum debug_regs reg, int val )
case REG_IP: SET_LOWORD(EIP_reg(&DEBUG_context),val); break;
case REG_SP: SET_LOWORD(ESP_reg(&DEBUG_context),val); break;
}
#endif
}
int
DEBUG_PrintRegister(enum debug_regs reg)
{
#ifdef __i386__
switch(reg)
{
case REG_EAX: fprintf(stderr, "%%eax"); break;
@ -84,6 +87,9 @@ DEBUG_PrintRegister(enum debug_regs reg)
case REG_GS: fprintf(stderr, "%%gs"); break;
}
return TRUE;
#else
return FALSE;
#endif
}
/***********************************************************************
@ -93,6 +99,7 @@ DEBUG_PrintRegister(enum debug_regs reg)
*/
int DEBUG_GetRegister( enum debug_regs reg )
{
#ifdef __i386__
switch(reg)
{
case REG_EAX: return EAX_reg(&DEBUG_context);
@ -122,6 +129,7 @@ int DEBUG_GetRegister( enum debug_regs reg )
case REG_IP: return LOWORD(EIP_reg(&DEBUG_context));
case REG_SP: return LOWORD(ESP_reg(&DEBUG_context));
}
#endif
return 0; /* should not happen */
}
@ -187,10 +195,9 @@ char *DEBUG_Flags( DWORD flag, char *buf )
*/
void DEBUG_InfoRegisters(void)
{
char flag[33];
fprintf(stderr,"Register dump:\n");
#ifdef __i386__
/* First get the segment registers out of the way */
fprintf( stderr," CS:%04x SS:%04x DS:%04x ES:%04x FS:%04x GS:%04x",
(WORD)CS_reg(&DEBUG_context), (WORD)SS_reg(&DEBUG_context),
@ -198,6 +205,8 @@ void DEBUG_InfoRegisters(void)
(WORD)FS_reg(&DEBUG_context), (WORD)GS_reg(&DEBUG_context) );
if (dbg_mode == 16)
{
char flag[33];
fprintf( stderr,"\n IP:%04x SP:%04x BP:%04x FLAGS:%04x(%s)\n",
LOWORD(EIP_reg(&DEBUG_context)), LOWORD(ESP_reg(&DEBUG_context)),
LOWORD(EBP_reg(&DEBUG_context)), LOWORD(EFL_reg(&DEBUG_context)),
@ -209,6 +218,8 @@ void DEBUG_InfoRegisters(void)
}
else /* 32-bit mode */
{
char flag[33];
fprintf( stderr, "\n EIP:%08lx ESP:%08lx EBP:%08lx EFLAGS:%08lx(%s)\n",
EIP_reg(&DEBUG_context), ESP_reg(&DEBUG_context),
EBP_reg(&DEBUG_context), EFL_reg(&DEBUG_context),
@ -219,6 +230,7 @@ void DEBUG_InfoRegisters(void)
fprintf( stderr, " ESI:%08lx EDI:%08lx\n",
ESI_reg(&DEBUG_context), EDI_reg(&DEBUG_context) );
}
#endif
}
@ -230,6 +242,7 @@ void DEBUG_InfoRegisters(void)
*/
BOOL DEBUG_ValidateRegisters(void)
{
#ifdef __i386__
WORD cs, ds;
if (ISV86(&DEBUG_context)) return TRUE;
@ -270,4 +283,7 @@ BOOL DEBUG_ValidateRegisters(void)
}
return TRUE;
#undef CHECK_SEG
#else
return TRUE;
#endif
}

31
debugger/source.c
View File

@ -430,6 +430,27 @@ DEBUG_List(struct list_id * source1, struct list_id * source2,
DBG_ADDR DEBUG_LastDisassemble={NULL,0,0};
void DEBUG_GetCurrentAddress( DBG_ADDR *addr )
{
#ifdef __i386__
TDB *pTask = (TDB*)GlobalLock16( GetCurrentTask() );
addr->type = NULL;
addr->seg = CS_reg(&DEBUG_context);
addr->off = EIP_reg(&DEBUG_context);
if (ISV86(&DEBUG_context)) addr->seg |= (DWORD)(pTask? pTask->hModule : 0) << 16;
else if (IS_SELECTOR_SYSTEM(addr->seg)) addr->seg = 0;
GlobalUnlock16( GetCurrentTask() );
#else
addr->type = NULL;
addr->seg = 0;
addr->off = (DWORD)GET_IP(&DEBUG_context);
#endif
}
static int
_disassemble(DBG_ADDR *addr)
{
@ -494,14 +515,8 @@ DEBUG_Disassemble(const DBG_ADDR *xstart,const DBG_ADDR *xend,int offset)
if (!xstart && !xend) {
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() );
}
DEBUG_GetCurrentAddress( &last );
for (i=0;i<offset;i++)
if (!_disassemble(&last)) break;
memcpy(&DEBUG_LastDisassemble,&last,sizeof(last));

11
debugger/stack.c
View File

@ -53,6 +53,7 @@ typedef struct
*/
void DEBUG_InfoStack(void)
{
#ifdef __i386__
DBG_ADDR addr;
addr.type = NULL;
@ -70,9 +71,10 @@ void DEBUG_InfoStack(void)
DEBUG_ExamineMemory( &addr, 24, 'w' );
}
fprintf(stderr,"\n");
#endif
}
#ifdef __i386__
static void DEBUG_ForceFrame(DBG_ADDR *stack, DBG_ADDR *code, int frameno, int bits, int noisy)
{
int theframe = nframe++;
@ -333,6 +335,9 @@ static void DEBUG_DoBackTrace(int noisy)
}
if (noisy) fprintf( stderr, "\n" );
}
#endif
/***********************************************************************
* DEBUG_BackTrace
@ -341,7 +346,9 @@ static void DEBUG_DoBackTrace(int noisy)
*/
void DEBUG_BackTrace(void)
{
#ifdef __i386__
DEBUG_DoBackTrace( TRUE );
#endif
}
/***********************************************************************
@ -351,7 +358,9 @@ void DEBUG_BackTrace(void)
*/
void DEBUG_SilentBackTrace(void)
{
#ifdef __i386__
DEBUG_DoBackTrace( FALSE );
#endif
}
int

10
include/debugger.h
View File

@ -84,6 +84,8 @@ struct wine_locals {
typedef struct wine_locals WineLocals;
#ifdef __i386__
#define DBG_V86_MODULE(seg) ((seg)>>16)
#define IS_SELECTOR_V86(seg) DBG_V86_MODULE(seg)
@ -99,6 +101,13 @@ typedef struct wine_locals WineLocals;
(IS_SELECTOR_SYSTEM((addr)->seg) ? (char *)(addr)->off \
: (char *)PTR_SEG_OFF_TO_LIN((addr)->seg,(addr)->off)))
#else /* __i386__ */
#define DBG_FIX_ADDR_SEG(addr,default)
#define DBG_ADDR_TO_LIN(addr) ((char *)(addr)->off)
#endif /* __386__ */
#define DBG_CHECK_READ_PTR(addr,len) \
(!DEBUG_IsBadReadPtr((addr),(len)) || \
(fprintf(stderr,"*** Invalid address "), \
@ -313,6 +322,7 @@ extern void DEBUG_AddPath(const char * path);
extern void DEBUG_List(struct list_id * line1, struct list_id * line2,
int delta);
extern void DEBUG_NukePath(void);
extern void DEBUG_GetCurrentAddress( DBG_ADDR * );
extern void DEBUG_Disassemble( const DBG_ADDR *, const DBG_ADDR*, int offset );
/* debugger/dbg.y */