1 /*****************************************************************************/
5 /* Symbol table entries for the cc65 C compiler */
9 /* (C) 2000-2002 Ullrich von Bassewitz */
11 /* D-70597 Stuttgart */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
51 /*****************************************************************************/
53 /*****************************************************************************/
61 /*****************************************************************************/
63 /*****************************************************************************/
67 /* Storage classes and flags */
68 #define SC_AUTO 0x0001U
69 #define SC_REGISTER 0x0002U /* Register variable, is in static storage */
70 #define SC_STATIC 0x0004U
71 #define SC_EXTERN 0x0008U
73 #define SC_ENUM 0x0030U /* An enum (numeric constant) */
74 #define SC_CONST 0x0020U /* A numeric constant with a type */
75 #define SC_LABEL 0x0040U /* A goto label */
76 #define SC_PARAM 0x0080U /* This is a function parameter */
77 #define SC_FUNC 0x0100U /* Function entry */
79 #define SC_STORAGE 0x0400U /* Symbol with associated storage */
80 #define SC_DEFAULT 0x0800U /* Flag: default storage class was used */
82 #define SC_DEF 0x1000U /* Symbol is defined */
83 #define SC_REF 0x2000U /* Symbol is referenced */
85 #define SC_TYPE 0x4000U /* This is a type, struct, typedef, etc. */
86 #define SC_STRUCT 0x4001U /* Struct or union */
87 #define SC_STRUCTFIELD 0x4002U /* Struct or union field */
88 #define SC_TYPEDEF 0x4003U /* A typedef */
90 #define SC_ZEROPAGE 0x8000U /* Symbol marked as zeropage */
94 /* Symbol table entry */
95 typedef struct SymEntry SymEntry;
97 SymEntry* NextHash; /* Next entry in hash list */
98 SymEntry* PrevSym; /* Previous symbol in dl list */
99 SymEntry* NextSym; /* Next symbol double linked list */
100 SymEntry* Link; /* General purpose single linked list */
101 struct SymTable* Owner; /* Symbol table the symbol is in */
102 unsigned Flags; /* Symbol flags */
103 type* Type; /* Symbol type */
104 char* AsmName; /* Assembler name if any */
106 /* Data that differs for the different symbol types */
109 /* Offset for locals or struct members */
112 /* Label name for static symbols */
115 /* Register bank offset and offset of the saved copy on stack for
116 * register variables.
123 /* Value for constants (including enums) */
126 /* Data for structs/unions */
128 struct SymTable* SymTab; /* Member symbol table */
129 unsigned Size; /* Size of the union/struct */
132 /* Data for functions */
134 struct FuncDesc* Func; /* Function descriptor */
135 struct Segments* Seg; /* Segments for this function */
139 char Name[1]; /* Name, dynamically allocated */
144 /*****************************************************************************/
146 /*****************************************************************************/
150 SymEntry* NewSymEntry (const char* Name, unsigned Flags);
151 /* Create a new symbol table with the given name */
153 void FreeSymEntry (SymEntry* E);
154 /* Free a symbol entry */
156 void DumpSymEntry (FILE* F, const SymEntry* E);
157 /* Dump the given symbol table entry to the file in readable form */
159 #if defined(HAVE_INLINE)
160 INLINE int SymIsTypeDef (const SymEntry* Sym)
161 /* Return true if the given entry is a typedef entry */
163 return ((Sym->Flags & SC_TYPEDEF) == SC_TYPEDEF);
166 # define SymIsTypeDef(Sym) (((Sym)->Flags & SC_TYPEDEF) == SC_TYPEDEF)
169 #if defined(HAVE_INLINE)
170 INLINE int SymIsDef (const SymEntry* Sym)
171 /* Return true if the given entry is defined */
173 return ((Sym->Flags & SC_DEF) == SC_DEF);
176 # define SymIsDef(Sym) (((Sym)->Flags & SC_DEF) == SC_DEF)
179 #if defined(HAVE_INLINE)
180 INLINE int SymIsRef (const SymEntry* Sym)
181 /* Return true if the given entry is referenced */
183 return ((Sym->Flags & SC_REF) == SC_REF);
186 # define SymIsRef(Sym) (((Sym)->Flags & SC_REF) == SC_REF)
189 void ChangeSymType (SymEntry* Entry, type* Type);
190 /* Change the type of the given symbol */
192 void ChangeAsmName (SymEntry* Entry, const char* NewAsmName);
193 /* Change the assembler name of the symbol */
195 int HasAnonName (const SymEntry* Entry);
196 /* Return true if the symbol entry has an anonymous name */
200 /* End of symentry.h */