Added error for duplicate definitions of labels.

Changed strdup to y_strdup (ANSI compatibility).

svn path=/trunk/yasm/; revision=53

include/errwarn.h

@@ -1,4 +1,4 @@
-/* $Id: errwarn.h,v 1.5 2001/06/13 05:43:59 mu Exp $
+/* $Id: errwarn.h,v 1.6 2001/06/13 05:56:06 mu Exp $
  * Error and warning reporting and related functions header file.
  *
  *  Copyright (C) 2001  Peter Johnson
@@ -39,7 +39,8 @@ typedef enum {
     ERR_INVALID_ARG,
     ERR_INVALID_EA,
     ERR_INVALID_LINE,
-    ERR_EXP_SYNTAX
+    ERR_EXP_SYNTAX,
+    ERR_DUPLICATE_DEF
 } err_num;
 
 void Error(err_num, char *, ...);

libyasm/errwarn.c

@@ -1,4 +1,4 @@
-/* $Id: errwarn.c,v 1.7 2001/06/13 05:53:25 peter Exp $
+/* $Id: errwarn.c,v 1.8 2001/06/13 05:56:06 mu Exp $
  * Error and warning reporting and related functions.
  *
  *  Copyright (C) 2001  Peter Johnson
@@ -43,7 +43,8 @@ static char *err_msgs[] = {
     "invalid argument to %s",
     "invalid effective address",
     "label or instruction expected at start of line",
-    "expression syntax error"
+    "expression syntax error",
+    "duplicate definition of `%s'; previously defined line %d"
 };
 
 static char *warn_msgs[] = {
@@ -130,7 +131,7 @@ static char *process_argtypes(char *src, char *argtypes)
 	    }
 	}
     } else {
-	dest = strdup(src);
+	dest = y_strdup(src);
 	if(!dest)
 	    Fatal(FATAL_NOMEM);
     }

libyasm/errwarn.h

@@ -1,4 +1,4 @@
-/* $Id: errwarn.h,v 1.5 2001/06/13 05:43:59 mu Exp $
+/* $Id: errwarn.h,v 1.6 2001/06/13 05:56:06 mu Exp $
  * Error and warning reporting and related functions header file.
  *
  *  Copyright (C) 2001  Peter Johnson
@@ -39,7 +39,8 @@ typedef enum {
     ERR_INVALID_ARG,
     ERR_INVALID_EA,
     ERR_INVALID_LINE,
-    ERR_EXP_SYNTAX
+    ERR_EXP_SYNTAX,
+    ERR_DUPLICATE_DEF
 } err_num;
 
 void Error(err_num, char *, ...);

libyasm/symrec.c

@@ -1,4 +1,4 @@
-/* $Id: symrec.c,v 1.2 2001/06/13 05:43:59 mu Exp $
+/* $Id: symrec.c,v 1.3 2001/06/13 05:56:06 mu Exp $
  * Symbol table handling
  *
  *  Copyright (C) 2001  Michael Urman
@@ -116,6 +116,8 @@ symrec *sym_def_get (char *name, SymType type)
 {
     symtab *tab;
     tab = symtab_get_or_new (name, type);
+    if (tab->rec.status & SYM_DECLARED)
+	Error (ERR_DUPLICATE_DEF, (char *)NULL, tab->rec.name, tab->rec.line);
     tab->rec.status |= SYM_DECLARED;
     return &(tab->rec);
 }

src/errwarn.c

@@ -1,4 +1,4 @@
-/* $Id: errwarn.c,v 1.7 2001/06/13 05:53:25 peter Exp $
+/* $Id: errwarn.c,v 1.8 2001/06/13 05:56:06 mu Exp $
  * Error and warning reporting and related functions.
  *
  *  Copyright (C) 2001  Peter Johnson
@@ -43,7 +43,8 @@ static char *err_msgs[] = {
     "invalid argument to %s",
     "invalid effective address",
     "label or instruction expected at start of line",
-    "expression syntax error"
+    "expression syntax error",
+    "duplicate definition of `%s'; previously defined line %d"
 };
 
 static char *warn_msgs[] = {
@@ -130,7 +131,7 @@ static char *process_argtypes(char *src, char *argtypes)
 	    }
 	}
     } else {
-	dest = strdup(src);
+	dest = y_strdup(src);
 	if(!dest)
 	    Fatal(FATAL_NOMEM);
     }

src/errwarn.h

@@ -1,4 +1,4 @@
-/* $Id: errwarn.h,v 1.5 2001/06/13 05:43:59 mu Exp $
+/* $Id: errwarn.h,v 1.6 2001/06/13 05:56:06 mu Exp $
  * Error and warning reporting and related functions header file.
  *
  *  Copyright (C) 2001  Peter Johnson
@@ -39,7 +39,8 @@ typedef enum {
     ERR_INVALID_ARG,
     ERR_INVALID_EA,
     ERR_INVALID_LINE,
-    ERR_EXP_SYNTAX
+    ERR_EXP_SYNTAX,
+    ERR_DUPLICATE_DEF
 } err_num;
 
 void Error(err_num, char *, ...);

src/symrec.c

@@ -1,4 +1,4 @@
-/* $Id: symrec.c,v 1.2 2001/06/13 05:43:59 mu Exp $
+/* $Id: symrec.c,v 1.3 2001/06/13 05:56:06 mu Exp $
  * Symbol table handling
  *
  *  Copyright (C) 2001  Michael Urman
@@ -116,6 +116,8 @@ symrec *sym_def_get (char *name, SymType type)
 {
     symtab *tab;
     tab = symtab_get_or_new (name, type);
+    if (tab->rec.status & SYM_DECLARED)
+	Error (ERR_DUPLICATE_DEF, (char *)NULL, tab->rec.name, tab->rec.line);
     tab->rec.status |= SYM_DECLARED;
     return &(tab->rec);
 }