Fixed two compiler warnings.

[cc65] / src / cc65 / symentry.c

diff --git a/src/cc65/symentry.c b/src/cc65/symentry.c
index 230362b562afd3a0ae62eff9b87316dc4c6fdda5..e42c8bbaa52a45be4bcd537515a2f0deb1212045 100644 (file)
--- a/src/cc65/symentry.c
+++ b/src/cc65/symentry.c
@@ -6,10 +6,10 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2000-2006 Ullrich von Bassewitz                                       */
-/*               Römerstrasse 52                                             */
-/*               D-70794 Filderstadt                                         */
-/* EMail:        uz@cc65.org                                                 */
+/* (C) 2000-2009, Ullrich von Bassewitz                                      */
+/*                Roemerstrasse 52                                           */
+/*                D-70794 Filderstadt                                        */
+/* EMail:         uz@cc65.org                                                */
 /*                                                                           */
 /*                                                                           */
 /* This software is provided 'as-is', without any expressed or implied       */
@@ -40,6 +40,8 @@
 
 /* cc65 */
 #include "anonname.h"
+#include "declare.h"
+#include "error.h"
 #include "symentry.h"
 
 
@@ -67,6 +69,7 @@ SymEntry* NewSymEntry (const char* Name, unsigned Flags)
     E->Owner   = 0;
     E->Flags   = Flags;
     E->Type    = 0;
+    E->Attr     = 0;
     E->AsmName  = 0;
     memcpy (E->Name, Name, Len+1);
 
@@ -95,6 +98,7 @@ void DumpSymEntry (FILE* F, const SymEntry* E)
     } Flags [] = {
        /* Beware: Order is important! */
        { "SC_TYPEDEF",     SC_TYPEDEF          },
+        { "SC_BITFIELD",    SC_BITFIELD         },
                { "SC_STRUCTFIELD", SC_STRUCTFIELD      },
        { "SC_STRUCT",      SC_STRUCT           },
        { "SC_AUTO",        SC_AUTO             },
@@ -149,6 +153,62 @@ void DumpSymEntry (FILE* F, const SymEntry* E)
 
 
 
+int SymIsOutputFunc (const SymEntry* Sym)
+/* Return true if this is a function that must be output */
+{
+    /* Symbol must be a function which is defined and either extern or
+     * static and referenced.
+     */
+    return IsTypeFunc (Sym->Type)               &&
+           SymIsDef (Sym)                       &&
+           (Sym->Flags & (SC_REF | SC_EXTERN));
+}                                               
+
+
+
+const DeclAttr* SymGetAttr (const SymEntry* Sym, DeclAttrType AttrType)
+/* Return an attribute for this symbol or NULL if the attribute does not exist */
+{
+    /* Beware: We may not even have a collection */
+    if (Sym->Attr) {
+        unsigned I;
+        for (I = 0; I < CollCount (Sym->Attr); ++I) {
+
+            /* Get the next attribute */
+            const DeclAttr* A = CollConstAt (Sym->Attr, I);
+
+            /* If this is the one we're searching for, return it */
+            if (A->AttrType == AttrType) {
+                return A;
+            }
+        }
+    }
+
+    /* Not found */
+    return 0;
+}
+
+
+
+void SymUseAttr (SymEntry* Sym, struct Declaration* D)
+/* Use the attributes from the declaration for this symbol */
+{
+    /* We cannot specify attributes twice */
+    if ((Sym->Flags & SC_HAVEATTR) != 0) {
+        if (D->Attributes != 0) {
+            Error ("Attributes must be specified in the first declaration");
+        }
+        return;
+    }
+
+    /* Move the attributes */
+    Sym->Attr = D->Attributes;
+    D->Attributes = 0;
+    Sym->Flags |= SC_HAVEATTR;
+}
+
+
+
 void CvtRegVarToAuto (SymEntry* Sym)
 /* Convert a register variable to an auto variable */
 {