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Added ability to defer breakpoint setting for breakpoint defined by an 

absolute address.
This commit is contained in:
Eric Pouech 2002-07-30 00:06:34 +00:00 committed by Alexandre Julliard
parent 6f129541d1
commit 72a7369ebc
6 changed files with 136 additions and 76 deletions
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181
debugger/break.c
View File

@ -274,7 +274,7 @@ static int DEBUG_FindBreakpoint( const DBG_ADDR *addr, int type )
*
* Find an empty slot in BP table to add a new break/watch point
*/
static int DEBUG_InitXPoint(int type, DBG_ADDR* addr)
static int DEBUG_InitXPoint(int type, const DBG_ADDR* addr)
{
int num;
@ -336,13 +336,48 @@ static BOOL DEBUG_GetWatchedValue( int num, LPDWORD val )
*
* Add a breakpoint.
*/
void DEBUG_AddBreakpoint( const DBG_VALUE *_value, BOOL (*func)(void) )
BOOL DEBUG_AddBreakpoint( const DBG_VALUE *value, BOOL (*func)(void), BOOL verbose )
{
DBG_VALUE value = *_value;
int num;
BYTE ch;
if( value.type != NULL && value.type == DEBUG_GetBasicType(DT_BASIC_CONST_INT) )
if ((num = DEBUG_FindBreakpoint(&value->addr, DBG_BREAK)) >= 1)
{
breakpoints[num].refcount++;
return TRUE;
}
if (!DEBUG_READ_MEM((void*)DEBUG_ToLinear( &value->addr ), &ch, sizeof(ch)))
{
if (verbose)
DEBUG_Printf( DBG_CHN_MESG, "Invalid address, can't set breakpoint\n");
return FALSE;
}
if ((num = DEBUG_InitXPoint(DBG_BREAK, &value->addr)) == -1)
return FALSE;
breakpoints[num].u.b.opcode = ch;
breakpoints[num].u.b.func = func;
DEBUG_Printf( DBG_CHN_MESG, "Breakpoint %d at ", num );
DEBUG_PrintAddress( &breakpoints[num].addr, breakpoints[num].is32 ? MODE_32 : MODE_16,
TRUE );
DEBUG_Printf( DBG_CHN_MESG, "\n" );
return FALSE;
}
/***********************************************************************
* DEBUG_AddBreakpointFromValue
*
* Add a breakpoint.
*/
BOOL DEBUG_AddBreakpointFromValue( const DBG_VALUE *_value )
{
DBG_VALUE value = *_value;
if (value.type != NULL && value.type == DEBUG_GetBasicType(DT_BASIC_CONST_INT) && value.cookie == DV_HOST)
{
/*
* We know that we have the actual offset stored somewhere
@ -353,30 +388,27 @@ void DEBUG_AddBreakpoint( const DBG_VALUE *_value, BOOL (*func)(void) )
value.addr.seg = 0;
value.addr.off = DEBUG_GetExprValue(&value, NULL);
value.addr.seg = seg2;
value.cookie = DV_TARGET;
}
if ((num = DEBUG_FindBreakpoint(&value.addr, DBG_BREAK)) >= 1)
if (!DEBUG_AddBreakpoint( &value, NULL, TRUE ))
{
breakpoints[num].refcount++;
return;
if (!DBG_IVAR(CanDeferOnBPByAddr))
{
DEBUG_Printf( DBG_CHN_MESG, "Invalid address, can't set breakpoint\n"
"You can turn on deferring breakpoints by address by setting $CanDeferOnBPByAddr to 1\n");
return FALSE;
}
DEBUG_Printf(DBG_CHN_MESG, "Unable to add breakpoint, will check again any time a new DLL is loaded\n");
DEBUG_CurrProcess->delayed_bp = DBG_realloc(DEBUG_CurrProcess->delayed_bp,
sizeof(DBG_DELAYED_BP) * ++DEBUG_CurrProcess->num_delayed_bp);
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].is_symbol = FALSE;
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].u.value = value;
return TRUE;
}
if (!DEBUG_READ_MEM_VERBOSE((void*)DEBUG_ToLinear( &value.addr ), &ch, sizeof(ch)))
{
DEBUG_Printf( DBG_CHN_MESG, "Invalid address, can't set breakpoint\n");
return;
}
if ((num = DEBUG_InitXPoint(DBG_BREAK, &value.addr)) == -1)
return;
breakpoints[num].u.b.opcode = ch;
breakpoints[num].u.b.func = func;
DEBUG_Printf( DBG_CHN_MESG, "Breakpoint %d at ", num );
DEBUG_PrintAddress( &breakpoints[num].addr, breakpoints[num].is32 ? MODE_32 : MODE_16,
TRUE );
DEBUG_Printf( DBG_CHN_MESG, "\n" );
return TRUE;
}
/***********************************************************************
@ -386,26 +418,29 @@ void DEBUG_AddBreakpoint( const DBG_VALUE *_value, BOOL (*func)(void) )
*/
void DEBUG_AddBreakpointFromId(const char *name, int lineno)
{
DBG_VALUE value;
int i;
DBG_VALUE value;
int i;
if (DEBUG_GetSymbolValue(name, lineno, &value, TRUE)) {
DEBUG_AddBreakpoint(&value, NULL);
return;
}
if (DEBUG_GetSymbolValue(name, lineno, &value, TRUE))
{
DEBUG_AddBreakpoint(&value, NULL, TRUE);
return;
}
DEBUG_Printf(DBG_CHN_MESG, "Unable to add breakpoint, will check again when a new DLL is loaded\n");
for (i = 0; i < DEBUG_CurrProcess->num_delayed_bp; i++) {
if (!strcmp(name, DEBUG_CurrProcess->delayed_bp[i].name) &&
lineno == DEBUG_CurrProcess->delayed_bp[i].lineno) {
return;
}
}
DEBUG_CurrProcess->delayed_bp = DBG_realloc(DEBUG_CurrProcess->delayed_bp,
sizeof(DBG_DELAYED_BP) * ++DEBUG_CurrProcess->num_delayed_bp);
DEBUG_Printf(DBG_CHN_MESG, "Unable to add breakpoint, will check again when a new DLL is loaded\n");
for (i = 0; i < DEBUG_CurrProcess->num_delayed_bp; i++)
{
if (DEBUG_CurrProcess->delayed_bp[i].is_symbol &&
!strcmp(name, DEBUG_CurrProcess->delayed_bp[i].u.symbol.name) &&
lineno == DEBUG_CurrProcess->delayed_bp[i].u.symbol.lineno)
return;
}
DEBUG_CurrProcess->delayed_bp = DBG_realloc(DEBUG_CurrProcess->delayed_bp,
sizeof(DBG_DELAYED_BP) * ++DEBUG_CurrProcess->num_delayed_bp);
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].name = strcpy(DBG_alloc(strlen(name) + 1), name);
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].lineno = lineno;
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].is_symbol = TRUE;
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].u.symbol.name = strcpy(DBG_alloc(strlen(name) + 1), name);
DEBUG_CurrProcess->delayed_bp[DEBUG_CurrProcess->num_delayed_bp - 1].u.symbol.lineno = lineno;
}
/***********************************************************************
@ -415,24 +450,26 @@ void DEBUG_AddBreakpointFromId(const char *name, int lineno)
*/
void DEBUG_AddBreakpointFromLineno(int lineno)
{
DBG_VALUE value;
DBG_VALUE value;
DEBUG_GetCurrentAddress(&value.addr);
DEBUG_GetCurrentAddress(&value.addr);
if (lineno != -1) {
struct name_hash* nh;
if (lineno != -1)
{
struct name_hash* nh;
DEBUG_FindNearestSymbol(&value.addr, TRUE, &nh, 0, NULL);
if (nh == NULL) {
DEBUG_Printf(DBG_CHN_MESG, "Unable to add breakpoint\n");
return;
}
DEBUG_GetLineNumberAddr(nh, lineno, &value.addr, TRUE);
}
DEBUG_FindNearestSymbol(&value.addr, TRUE, &nh, 0, NULL);
if (nh == NULL)
{
DEBUG_Printf(DBG_CHN_MESG, "Unable to add breakpoint\n");
return;
}
DEBUG_GetLineNumberAddr(nh, lineno, &value.addr, TRUE);
}
value.type = NULL;
value.cookie = DV_TARGET;
DEBUG_AddBreakpoint( &value, NULL );
value.type = NULL;
value.cookie = DV_TARGET;
DEBUG_AddBreakpoint( &value,NULL, TRUE );
}
/***********************************************************************
@ -442,18 +479,32 @@ void DEBUG_AddBreakpointFromLineno(int lineno)
*/
void DEBUG_CheckDelayedBP(void)
{
DBG_VALUE value;
int i = 0;
DBG_DELAYED_BP* dbp = DEBUG_CurrProcess->delayed_bp;
DBG_VALUE value;
int i;
DBG_DELAYED_BP* dbp = DEBUG_CurrProcess->delayed_bp;
while (i < DEBUG_CurrProcess->num_delayed_bp) {
if (DEBUG_GetSymbolValue(dbp[i].name, dbp[i].lineno, &value, TRUE)) {
DEBUG_AddBreakpoint(&value, NULL);
memmove(&dbp[i], &dbp[i+1], (--DEBUG_CurrProcess->num_delayed_bp - i) * sizeof(*dbp));
} else {
i++;
}
}
for (i = 0; i < DEBUG_CurrProcess->num_delayed_bp; i++)
{
if (dbp[i].is_symbol)
{
if (!DEBUG_GetSymbolValue(dbp[i].u.symbol.name, dbp[i].u.symbol.lineno, &value, TRUE))
continue;
}
else
value = dbp[i].u.value;
DEBUG_Printf(DBG_CHN_MESG, "trying to add delayed %s-bp\n", dbp[i].is_symbol ? "S" : "A");
if (!dbp[i].is_symbol)
DEBUG_Printf(DBG_CHN_MESG, "\t%04x %04lx:%08lx\n",
dbp[i].u.value.cookie,
dbp[i].u.value.addr.seg,
dbp[i].u.value.addr.off);
else
DEBUG_Printf(DBG_CHN_MESG, "\t'%s' @ %d\n",
dbp[i].u.symbol.name, dbp[i].u.symbol.lineno);
if (DEBUG_AddBreakpoint(&value, NULL, FALSE))
memmove(&dbp[i], &dbp[i+1], (--DEBUG_CurrProcess->num_delayed_bp - i) * sizeof(*dbp));
}
}
/***********************************************************************

4
debugger/dbg.y
View File

@ -164,7 +164,7 @@ command:
;
set_command:
tSET lval_addr '=' expr_value tEOL { DEBUG_WriteMemory(&$2,$4); DEBUG_FreeExprMem(); }
tSET lval_addr '=' expr_value tEOL { DEBUG_WriteMemory(&$2, $4); DEBUG_FreeExprMem(); }
| tSET '+' tIDENTIFIER tEOL {DEBUG_DbgChannel(TRUE, NULL, $3);}
| tSET '-' tIDENTIFIER tEOL {DEBUG_DbgChannel(FALSE, NULL, $3);}
| tSET tIDENTIFIER '+' tIDENTIFIER tEOL {DEBUG_DbgChannel(TRUE, $2, $4);}
@ -212,7 +212,7 @@ print_command:
;
break_command:
tBREAK '*' expr_addr tEOL{ DEBUG_AddBreakpoint( &$3, NULL ); DEBUG_FreeExprMem(); }
tBREAK '*' expr_addr tEOL{ DEBUG_AddBreakpointFromValue( &$3 ); DEBUG_FreeExprMem(); }
| tBREAK identifier tEOL { DEBUG_AddBreakpointFromId($2, -1); }
| tBREAK identifier ':' tNUM tEOL { DEBUG_AddBreakpointFromId($2, $4); }
| tBREAK tNUM tEOL { DEBUG_AddBreakpointFromLineno($2); }

15
debugger/debugger.h
View File

@ -209,8 +209,14 @@ typedef struct tagDBG_THREAD {
} DBG_THREAD;
typedef struct tagDBG_DELAYED_BP {
int lineno;
char* name;
BOOL is_symbol;
union {
struct {
int lineno;
char* name;
} symbol;
DBG_VALUE value;
} u;
} DBG_DELAYED_BP;
typedef struct tagDBG_PROCESS {
@ -227,7 +233,7 @@ typedef struct tagDBG_PROCESS {
int num_delayed_bp;
/*
* This is an index we use to keep track of the debug information
* when we have multiple sources. We use the same database to also
* when we have multiple sources. We use the same database to also
* allow us to do an 'info shared' type of deal, and we use the index
* to eliminate duplicates.
*/
@ -288,7 +294,8 @@ extern void DEBUG_ExternalDebugger(void);
/* debugger/break.c */
extern void DEBUG_SetBreakpoints( BOOL set );
extern void DEBUG_AddBreakpoint( const DBG_VALUE *addr, BOOL (*func)(void) );
extern BOOL DEBUG_AddBreakpoint( const DBG_VALUE *addr, BOOL (*func)(void), BOOL verbose );
extern BOOL DEBUG_AddBreakpointFromValue( const DBG_VALUE *addr );
extern void DEBUG_AddBreakpointFromId( const char *name, int lineno );
extern void DEBUG_AddBreakpointFromLineno( int lineno );
extern void DEBUG_AddWatchpoint( const DBG_VALUE *addr, int is_write );

1
debugger/intvar.h
View File

@ -25,6 +25,7 @@ INTERNAL_VAR(BreakOnCritSectTimeOut, FALSE, NULL, DT_BASIC_CONST
INTERNAL_VAR(BreakOnAttach, FALSE, NULL, DT_BASIC_CONST_INT)
INTERNAL_VAR(BreakOnFirstChance, TRUE, NULL, DT_BASIC_CONST_INT)
INTERNAL_VAR(BreakOnDllLoad, FALSE, NULL, DT_BASIC_CONST_INT)
INTERNAL_VAR(CanDeferOnBPByAddr, FALSE, NULL, DT_BASIC_CONST_INT)
/* output handling */
INTERNAL_VAR(ConChannelMask, DBG_CHN_MESG, NULL, DT_BASIC_CONST_INT)

2
debugger/stabs.c
View File

@ -1453,7 +1453,7 @@ enum DbgInfoLoad DEBUG_ReadExecutableDbgInfo(const char* exe_name)
value.cookie = DV_TARGET;
value.addr.seg = 0;
value.addr.off = (DWORD)dbg_hdr.r_brk;
DEBUG_AddBreakpoint(&value, DEBUG_RescanElf);
DEBUG_AddBreakpoint(&value, DEBUG_RescanElf, TRUE);
DEBUG_SetBreakpoints(TRUE);
}

9
debugger/winedbg.c
View File

@ -196,9 +196,10 @@ void DEBUG_DelProcess(DBG_PROCESS* p)
while (p->threads) DEBUG_DelThread(p->threads);
for (i = 0; i < p->num_delayed_bp; i++) {
DBG_free(p->delayed_bp[i].name);
}
for (i = 0; i < p->num_delayed_bp; i++)
if (p->delayed_bp[i].is_symbol)
DBG_free(p->delayed_bp[i].u.symbol.name);
DBG_free(p->delayed_bp);
if (p->prev) p->prev->next = p->next;
if (p->next) p->next->prev = p->prev;
@ -283,7 +284,7 @@ static void DEBUG_InitCurrThread(void)
value.cookie = DV_TARGET;
value.addr.seg = 0;
value.addr.off = (DWORD)DEBUG_CurrThread->start;
DEBUG_AddBreakpoint(&value, NULL);
DEBUG_AddBreakpointFromValue(&value);
DEBUG_SetBreakpoints(TRUE);
}
} else {