/*****************************************************************************/
/* */
-/* symentry.c */
+/* symentry.c */
/* */
-/* Symbol table entries for the cc65 C compiler */
+/* Symbol table entries for the cc65 C compiler */
/* */
/* */
/* */
-/* (C) 2000-2009, Ullrich von Bassewitz */
+/* (C) 2000-2013, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* cc65 */
#include "anonname.h"
+#include "declare.h"
+#include "error.h"
#include "symentry.h"
/*****************************************************************************/
-/* Code */
+/* Code */
/*****************************************************************************/
SymEntry* E = xmalloc (sizeof (SymEntry) + Len);
/* Initialize the entry */
- E->NextHash = 0;
- E->PrevSym = 0;
- E->NextSym = 0;
- E->Link = 0;
- E->Owner = 0;
- E->Flags = Flags;
- E->Type = 0;
+ E->NextHash = 0;
+ E->PrevSym = 0;
+ E->NextSym = 0;
+ E->Link = 0;
+ E->Owner = 0;
+ E->Flags = Flags;
+ E->Type = 0;
+ E->Attr = 0;
E->AsmName = 0;
+ E->V.BssName = 0;
memcpy (E->Name, Name, Len+1);
/* Return the new entry */
/* Dump the given symbol table entry to the file in readable form */
{
static const struct {
- const char* Name;
- unsigned Val;
+ const char* Name;
+ unsigned Val;
} Flags [] = {
- /* Beware: Order is important! */
- { "SC_TYPEDEF", SC_TYPEDEF },
+ /* Beware: Order is important! */
+ { "SC_TYPEDEF", SC_TYPEDEF },
{ "SC_BITFIELD", SC_BITFIELD },
- { "SC_STRUCTFIELD", SC_STRUCTFIELD },
- { "SC_STRUCT", SC_STRUCT },
- { "SC_AUTO", SC_AUTO },
- { "SC_REGISTER", SC_REGISTER },
- { "SC_STATIC", SC_STATIC },
- { "SC_EXTERN", SC_EXTERN },
- { "SC_ENUM", SC_ENUM },
- { "SC_CONST", SC_CONST },
- { "SC_LABEL", SC_LABEL },
- { "SC_PARAM", SC_PARAM },
- { "SC_FUNC", SC_FUNC },
- { "SC_STORAGE", SC_STORAGE },
- { "SC_DEF", SC_DEF },
- { "SC_REF", SC_REF },
- { "SC_ZEROPAGE", SC_ZEROPAGE },
+ { "SC_STRUCTFIELD", SC_STRUCTFIELD },
+ { "SC_UNION", SC_UNION },
+ { "SC_STRUCT", SC_STRUCT },
+ { "SC_AUTO", SC_AUTO },
+ { "SC_REGISTER", SC_REGISTER },
+ { "SC_STATIC", SC_STATIC },
+ { "SC_EXTERN", SC_EXTERN },
+ { "SC_ENUM", SC_ENUM },
+ { "SC_CONST", SC_CONST },
+ { "SC_LABEL", SC_LABEL },
+ { "SC_PARAM", SC_PARAM },
+ { "SC_FUNC", SC_FUNC },
+ { "SC_STORAGE", SC_STORAGE },
+ { "SC_DEF", SC_DEF },
+ { "SC_REF", SC_REF },
+ { "SC_ZEROPAGE", SC_ZEROPAGE },
};
unsigned I;
/* Print the flags */
SymFlags = E->Flags;
- fprintf (F, " Flags: ");
+ fprintf (F, " Flags:");
for (I = 0; I < sizeof (Flags) / sizeof (Flags[0]) && SymFlags != 0; ++I) {
- if ((SymFlags & Flags[I].Val) == Flags[I].Val) {
- SymFlags &= ~Flags[I].Val;
- fprintf (F, "%s ", Flags[I].Name);
- }
+ if ((SymFlags & Flags[I].Val) == Flags[I].Val) {
+ SymFlags &= ~Flags[I].Val;
+ fprintf (F, " %s", Flags[I].Name);
+ }
}
if (SymFlags != 0) {
- fprintf (F, "%04X", SymFlags);
+ fprintf (F, " 0x%05X", SymFlags);
}
fprintf (F, "\n");
/* Print the type */
fprintf (F, " Type: ");
if (E->Type) {
- PrintType (F, E->Type);
+ PrintType (F, E->Type);
} else {
- fprintf (F, "(none)");
+ fprintf (F, "(none)");
}
fprintf (F, "\n");
}
+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 SymSetAsmName (SymEntry* Sym)
+/* Set the assembler name for an external symbol from the name of the symbol */
+{
+ unsigned Len;
+
+ /* Cannot be used to change the name */
+ PRECONDITION (Sym->AsmName == 0);
+
+ /* The assembler name starts with an underline */
+ Len = strlen (Sym->Name);
+ Sym->AsmName = xmalloc (Len + 2);
+ Sym->AsmName[0] = '_';
+ memcpy (Sym->AsmName+1, Sym->Name, Len+1);
+}
+
+
+
void CvtRegVarToAuto (SymEntry* Sym)
/* Convert a register variable to an auto variable */
{
{
return IsAnonName (Entry->Name);
}
-
-
-
projects / cc65 / blobdiff