Started handling of several symbols with the same name.

debugger/break.c

@@ -407,7 +407,7 @@ void	DEBUG_AddBreakpointFromLineno(int lineno)
    DEBUG_AddBreakpoint( &value, NULL );
 }
 
- /***********************************************************************
+/***********************************************************************
  *           DEBUG_AddWatchpoint
  *
  * Add a watchpoint.
@@ -482,11 +482,11 @@ void DEBUG_AddWatchpoint( const DBG_VALUE *_value, BOOL is_write )
  *
  * Add a watchpoint from a symbol name (and eventually a line #)
  */
-void	DEBUG_AddWatchpointFromId(const char *name, int lineno)
+void	DEBUG_AddWatchpointFromId(const char *name)
 {
    DBG_VALUE value;
    
-   if( DEBUG_GetSymbolValue(name, lineno, &value, TRUE) )
+   if( DEBUG_GetSymbolValue(name, -1, &value, TRUE) )
       DEBUG_AddWatchpoint( &value, 1 );
    else
       DEBUG_Printf(DBG_CHN_MESG, "Unable to add watchpoint\n");
@@ -876,7 +876,7 @@ enum exec_mode DEBUG_RestartExecution( enum exec_mode mode, int count )
      * FIXME - we need to check for things like thunks or trampolines,
      * as the actual function may in fact have debug info.
      */
-    if( ch == 0xe8 )
+    if ( ch == 0xe8 )
       {
 	DEBUG_READ_MEM((void*)(instr + 1), &delta, sizeof(delta));
 	addr2 = addr;

debugger/dbg.y

@@ -202,7 +202,7 @@ break_command:
 
 watch_command:
       tWATCH '*' expr_addr tEOL { DEBUG_AddWatchpoint( &$3, 1 ); DEBUG_FreeExprMem(); }
-    | tWATCH tIDENTIFIER tEOL   { DEBUG_AddWatchpointFromId($2, -1); }
+    | tWATCH tIDENTIFIER tEOL   { DEBUG_AddWatchpointFromId($2); }
 
 info_command:
       tINFO tBREAK tEOL         { DEBUG_InfoBreakpoints(); }

debugger/debugger.h

@@ -208,6 +208,7 @@ extern	DBG_THREAD*	DEBUG_CurrThread;
 extern	DWORD		DEBUG_CurrTid;
 extern	DWORD		DEBUG_CurrPid;
 extern  CONTEXT		DEBUG_context;
+extern  BOOL		DEBUG_interactiveP;
 
 #define DEBUG_READ_MEM(addr, buf, len) \
       (ReadProcessMemory(DEBUG_CurrProcess->handle, (addr), (buf), (len), NULL))
@@ -230,7 +231,7 @@ typedef struct tagDBG_MODULE {
    char*			module_name;
    enum DbgInfoLoad		dil;
    enum DbgModuleType		type;
-   unsigned char		main;
+   unsigned short		main : 1;
    short int			dbg_index;
    HMODULE                      handle;
    struct tagMSC_DBG_INFO*	msc_info;
@@ -255,7 +256,7 @@ extern void DEBUG_AddBreakpoint( const DBG_VALUE *addr, BOOL (*func)(void) );
 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 );
-extern void DEBUG_AddWatchpointFromId( const char *name, int lineno );
+extern void DEBUG_AddWatchpointFromId( const char *name );
 extern void DEBUG_DelBreakpoint( int num );
 extern void DEBUG_EnableBreakpoint( int num, BOOL enable );
 extern void DEBUG_InfoBreakpoints(void);
@@ -314,7 +315,7 @@ extern struct name_hash * DEBUG_AddSymbol( const char *name,
 					   const DBG_VALUE *addr,
 					   const char *sourcefile,
 					   int flags);
-extern BOOL DEBUG_GetSymbolValue( const char * name, const int lineno,
+extern int DEBUG_GetSymbolValue( const char * name, const int lineno,
 				 DBG_VALUE *addr, int );
 extern BOOL DEBUG_SetSymbolValue( const char * name, const DBG_VALUE *addr );
 extern const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
@@ -390,6 +391,7 @@ extern DBG_MODULE* DEBUG_AddModule(const char* name, enum DbgModuleType type,
 				   void* mod_addr, u_long size, HMODULE hmod);
 extern DBG_MODULE* DEBUG_FindModuleByName(const char* name, enum DbgModuleType type);
 extern DBG_MODULE* DEBUG_FindModuleByHandle(HANDLE handle, enum DbgModuleType type);
+extern DBG_MODULE* DEBUG_FindModuleByAddr(void* addr, enum DbgModuleType type);
 extern DBG_MODULE* DEBUG_GetProcessMainModule(DBG_PROCESS* process);
 extern DBG_MODULE* DEBUG_RegisterPEModule(HMODULE, u_long load_addr, u_long size, 
 					  const char* name);

debugger/hash.c

@@ -181,14 +181,13 @@ DEBUG_ResortSymbols(void)
  * Add a symbol to the table.
  */
 struct name_hash *
-DEBUG_AddSymbol( const char * name, const DBG_VALUE *value, const char * source,
-		 int flags)
+DEBUG_AddSymbol( const char * name, const DBG_VALUE *value, 
+		 const char * source, int flags)
 {
     struct name_hash  * new;
     struct name_hash *nh;
     static char  prev_source[PATH_MAX] = {'\0', };
     static char * prev_duped_source = NULL;
-    char * c;
     int hash;
 
     assert(value->cookie == DV_TARGET || value->cookie == DV_HOST);
@@ -284,24 +283,17 @@ DEBUG_AddSymbol( const char * name, const DBG_VALUE *value, const char * source,
      * calling things and the GCC way of calling things.  In general we
      * always want to step through.
      */
-    if( source != NULL )
-      {
-	c = strrchr(source, '.');
-	if( c != NULL && strcmp(c, ".s") == 0 )
-	  {
-	    c = strrchr(source, '/');
-	    if( c != NULL )
-	      {
-		c++;
-		if(    (strcmp(c, "callfrom16.s") == 0)
-		    || (strcmp(c, "callto16.s") == 0)
-		    || (strcmp(c, "call32.s") == 0) )
-		  {
+    if ( source != NULL ) {
+        int	len = strlen(source);
+
+	if (len > 2 && source[len-2] == '.' && source[len-1] == 's') {
+	    char* c = strrchr(source - 2, '/');
+	    if (c != NULL) {
+		if (strcmp(c + 1, "asmrelay.s") == 0)
 		    new->flags |= SYM_TRAMPOLINE;
 	    }
 	}
     }
-      }
 
     sortlist_valid = FALSE;
     return new;
@@ -341,52 +333,79 @@ BOOL DEBUG_Normalize(struct name_hash * nh )
  *
  * Get the address of a named symbol.
  */
-BOOL DEBUG_GetSymbolValue( const char * name, const int lineno, 
-			   DBG_VALUE *value, int bp_flag )
+static int    DEBUG_GSV_Helper(const char* name, const int lineno, 
+			       DBG_VALUE* value, int num, int bp_flag)
 {
-    struct name_hash *nh;
+   struct name_hash*	nh;
+   int			i = 0;
+   DBG_ADDR		addr;
 
-    for(nh = name_hash_table[name_hash(name)]; nh; nh = nh->next)
+   for (nh = name_hash_table[name_hash(name)]; nh; nh = nh->next)
    {
-	if( (nh->flags & SYM_INVALID) != 0 )
+      if ((nh->flags & SYM_INVALID) != 0) continue;
+      if (!strcmp(nh->name, name) && DEBUG_GetLineNumberAddr( nh, lineno, &addr, bp_flag ))
       {
-	    continue;
+	 if (i >= num) return num + 1;
+	 value[i].addr = addr;
+	 value[i].type = nh->value.type;
+	 value[i].cookie = nh->value.cookie;
+	 i++;
       }
-
-        if (!strcmp(nh->name, name)) break;
    }
+   return i;
+}
 
-    if (!nh && (name[0] != '_'))
+BOOL DEBUG_GetSymbolValue( const char * name, const int lineno, 
+			   DBG_VALUE *rtn, int bp_flag )
+{
+#define NUMDBGV 10
+   /* FIXME: NUMDBGV should be made variable */
+   DBG_VALUE 	value[NUMDBGV];
+   DBG_VALUE	vtmp;
+   int		num, i;
+
+   num = DEBUG_GSV_Helper(name, lineno, value, NUMDBGV, bp_flag);
+   if (!num && (name[0] != '_'))
    {
       char buffer[256];
 	
       assert(strlen(name) < sizeof(buffer) - 2); /* one for '_', one for '\0' */
       buffer[0] = '_';
-        strcpy(buffer+1, name);
-        for(nh = name_hash_table[name_hash(buffer)]; nh; nh = nh->next)
-	  {
-	    if( (nh->flags & SYM_INVALID) != 0 )
-	      {
-		continue;
-	      }
-            if (!strcmp(nh->name, buffer)) break;
-	  }
+      strcpy(buffer + 1, name);
+      num = DEBUG_GSV_Helper(buffer, lineno, value, NUMDBGV, bp_flag);
    }
 
-    /*
-     * If we don't have anything here, then try and see if this
-     * is a local symbol to the current stack frame.  No matter
-     * what, we have nothing more to do, so we let that function
-     * decide what we ultimately return.
-     */
-    if (!nh) 
+   /* now get the local symbols if any */
+   if (DEBUG_GetStackSymbolValue(name, &vtmp) && num < NUMDBGV) 
    {
-	return DEBUG_GetStackSymbolValue(name, value);
+      value[num] = vtmp;
+      num++;
    }
 
-    value->type = nh->value.type;
-    value->cookie = nh->value.cookie;
-    return DEBUG_GetLineNumberAddr( nh, lineno, &value->addr, bp_flag );
+   if (num == 0) {
+      return FALSE;
+   } else if (!DEBUG_interactiveP || num == 1) {
+      i = 0;
+   } else {
+      char*	ptr;
+      if (num == NUMDBGV+1) {
+	 DEBUG_Printf(DBG_CHN_MESG, "Too many addresses for symbol '%s', limiting the first %d\n", name, NUMDBGV);
+	 num = NUMDBGV;
+      }
+      DEBUG_Printf(DBG_CHN_MESG, "Many symbols with name '%s', choose the one you want (<cr> to abort):\n", name);
+      for (i = 0; i < num; i++) {
+	 DEBUG_Printf(DBG_CHN_MESG, "[%d]: ", i + 1);
+	 DEBUG_PrintAddress( &value[i].addr, DEBUG_GetSelectorType(value[i].addr.seg), TRUE);
+	 DEBUG_Printf(DBG_CHN_MESG, "\n");
+      }
+      do {
+	 ptr = readline("=> ");
+	 if (!*ptr) return FALSE;
+	 i = atoi(ptr);
+      } while (i < 0 || i >= num);
+   }
+   *rtn = value[i];
+   return TRUE;
 }
 
 /***********************************************************************
@@ -495,6 +514,8 @@ const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
     int i;
     char linebuff[16];
     unsigned val;
+    DBG_MODULE*	module;
+    char modbuf[256];
 
     if( rtn != NULL )
       {
@@ -666,6 +687,16 @@ const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
 	  }
       }
 
+    module = DEBUG_FindModuleByAddr((void*)DEBUG_ToLinear(addr), DMT_UNKNOWN);
+    if (module) {
+       char*	ptr = strrchr(module->module_name, '/');
+       
+       if (!ptr++) ptr = module->module_name;
+       sprintf( modbuf, " in %s", ptr);
+    }
+    else
+       modbuf[0] = '\0';
+
     if( (nearest->sourcefile != NULL) && (flag == TRUE)
 	&& (addr->off - nearest->value.addr.off < 0x100000) )
       {
@@ -704,23 +735,23 @@ const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
         else sourcefile++;
 	
 	if (addr->off == nearest->value.addr.off)
-	  sprintf( name_buffer, "%s%s [%s%s]", nearest->name, 
-		   arglist, sourcefile, lineinfo);
+	  sprintf( name_buffer, "%s%s [%s%s]%s", nearest->name, 
+		   arglist, sourcefile, lineinfo, modbuf);
 	else
-	  sprintf( name_buffer, "%s+0x%lx%s [%s%s]", nearest->name,
+	  sprintf( name_buffer, "%s+0x%lx%s [%s%s]%s", nearest->name,
 		   addr->off - nearest->value.addr.off, 
-		   arglist, sourcefile, lineinfo );
+		   arglist, sourcefile, lineinfo, modbuf );
       }
     else
       {
 	if (addr->off == nearest->value.addr.off)
-	  sprintf( name_buffer, "%s%s", nearest->name, arglist);
+	  sprintf( name_buffer, "%s%s%s", nearest->name, arglist, modbuf);
 	else {
 	  if (addr->seg && (nearest->value.addr.seg!=addr->seg))
 	      return NULL;
 	  else
-	      sprintf( name_buffer, "%s+0x%lx%s", nearest->name,
-		       addr->off - nearest->value.addr.off, arglist);
+	      sprintf( name_buffer, "%s+0x%lx%s%s", nearest->name,
+		       addr->off - nearest->value.addr.off, arglist, modbuf);
  	}
       }
     return name_buffer;
@@ -732,7 +763,7 @@ const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
  *
  * Read a symbol file into the hash table.
  */
-void DEBUG_ReadSymbolTable( const char * filename )
+void DEBUG_ReadSymbolTable( const char* filename )
 {
     FILE * symbolfile;
     DBG_VALUE value;

debugger/module.c

@@ -76,9 +76,12 @@ DBG_MODULE*	DEBUG_FindModuleByAddr(void* addr, enum DbgModuleType type)
      for (i = 0; i < DEBUG_CurrProcess->num_modules; i++) {
 	 if ((type == DMT_UNKNOWN || type == amod[i]->type) &&
 	     (u_long)addr >= (u_long)amod[i]->load_addr &&
-	     (!res || res->load_addr < amod[i]->load_addr))
+	     (u_long)addr < (u_long)amod[i]->load_addr + (u_long)amod[i]->size) {
+	     /* amod[i] contains it... check against res now */
+	     if (!res || res->load_addr < amod[i]->load_addr)
 		 res = amod[i];
 	 }
+     }
      return res;
 }
 

debugger/winedbg.c

@@ -28,6 +28,7 @@ DBG_THREAD*	DEBUG_CurrThread = NULL;
 DWORD		DEBUG_CurrTid;
 DWORD		DEBUG_CurrPid;
 CONTEXT		DEBUG_context;
+BOOL		DEBUG_interactiveP = FALSE;
 int 		curr_frame = 0;
 static char*	DEBUG_LastCmdLine = NULL;
 
@@ -44,7 +45,7 @@ void	DEBUG_Output(int chn, const char* buffer, int len)
 
 int	DEBUG_Printf(int chn, const char* format, ...)
 {
-    char	buf[1024];
+static    char	buf[4*1024];
     va_list 	valist;
     int		len;
 
@@ -499,6 +500,7 @@ static	BOOL	DEBUG_HandleException(EXCEPTION_RECORD *rec, BOOL first_chance, BOOL
 		 DEBUG_CurrThread->dbg_exec_mode, DEBUG_CurrThread->dbg_exec_count);
 
     if (DEBUG_ExceptionProlog(is_debug, force, rec->ExceptionCode)) {
+	DEBUG_interactiveP = TRUE;
 	while ((ret = DEBUG_Parser())) {
 	    if (DEBUG_ValidateRegisters()) {
 		if (DEBUG_CurrThread->dbg_exec_mode != EXEC_PASS || first_chance)
@@ -506,6 +508,7 @@ static	BOOL	DEBUG_HandleException(EXCEPTION_RECORD *rec, BOOL first_chance, BOOL
 		DEBUG_Printf(DBG_CHN_MESG, "Cannot pass on last chance exception. You must use cont\n");
 	    }
 	}
+	DEBUG_interactiveP = FALSE;
     }
     *cont = DEBUG_ExceptionEpilog();