mirror of
https://github.com/gbdev/rgbds.git
synced 2025-11-20 18:22:07 +00:00
e63e801e9c
When calculating the difference of addresses between two labels, for it to be defined, either: - Both of them must have their absolute address defined. - They belong to the same section, so their relative addresses are compatible. This patch adds a check to make sure that any other case is detected so that the programmer can correct the code. This applies to rgbasm. The difference of labels can be used, for example, as argument of DS. The linker can't resize sections, which means that the final value must be defined when creating the object file. Signed-off-by: AntonioND <antonio_nd@outlook.com>
77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
#ifndef RGBDS_SYMBOL_H
|
|
#define RGBDS_SYMBOL_H
|
|
|
|
#include "types.h"
|
|
|
|
#define HASHSIZE (1 << 16)
|
|
#define MAXSYMLEN 256
|
|
|
|
struct sSymbol {
|
|
char tzName[MAXSYMLEN + 1];
|
|
SLONG nValue;
|
|
ULONG nType;
|
|
struct sSymbol *pScope;
|
|
struct sSymbol *pNext;
|
|
struct Section *pSection;
|
|
ULONG ulMacroSize;
|
|
char *pMacro;
|
|
SLONG(*Callback) (struct sSymbol *);
|
|
};
|
|
#define SYMF_RELOC 0x001 /* symbol will be reloc'ed during
|
|
* linking, it's absolute value is
|
|
* unknown */
|
|
#define SYMF_EQU 0x002 /* symbol is defined using EQU, will
|
|
* not be changed during linking */
|
|
#define SYMF_SET 0x004 /* symbol is (re)defined using SET,
|
|
* will not be changed during linking */
|
|
#define SYMF_EXPORT 0x008 /* symbol should be exported */
|
|
#define SYMF_IMPORT 0x010 /* symbol is imported, it's value is
|
|
* unknown */
|
|
#define SYMF_LOCAL 0x020 /* symbol is a local symbol */
|
|
#define SYMF_DEFINED 0x040 /* symbol has been defined, not only
|
|
* referenced */
|
|
#define SYMF_MACRO 0x080 /* symbol is a macro */
|
|
#define SYMF_STRING 0x100 /* symbol is a stringsymbol */
|
|
#define SYMF_CONST 0x200 /* symbol has a constant value, will
|
|
* not be changed during linking */
|
|
|
|
ULONG calchash(char *s);
|
|
void sym_SetExportAll(BBOOL set);
|
|
void sym_PrepPass1(void);
|
|
void sym_PrepPass2(void);
|
|
void sym_AddLocalReloc(char *tzSym);
|
|
void sym_AddReloc(char *tzSym);
|
|
void sym_Export(char *tzSym);
|
|
void sym_PrintSymbolTable(void);
|
|
struct sSymbol *sym_FindMacro(char *s);
|
|
void sym_InitNewMacroArgs(void);
|
|
void sym_AddNewMacroArg(char *s);
|
|
void sym_SaveCurrentMacroArgs(char *save[]);
|
|
void sym_RestoreCurrentMacroArgs(char *save[]);
|
|
void sym_UseNewMacroArgs(void);
|
|
void sym_FreeCurrentMacroArgs(void);
|
|
void sym_AddEqu(char *tzSym, SLONG value);
|
|
void sym_AddSet(char *tzSym, SLONG value);
|
|
void sym_Init(void);
|
|
ULONG sym_GetConstantValue(char *s);
|
|
void sym_Import(char *tzSym);
|
|
ULONG sym_isConstant(char *s);
|
|
struct sSymbol *sym_FindSymbol(char *tzName);
|
|
void sym_Global(char *tzSym);
|
|
char *sym_FindMacroArg(SLONG i);
|
|
char *sym_GetStringValue(char *tzSym);
|
|
void sym_UseCurrentMacroArgs(void);
|
|
void sym_SetMacroArgID(ULONG nMacroCount);
|
|
ULONG sym_isString(char *tzSym);
|
|
void sym_AddMacro(char *tzSym);
|
|
void sym_ShiftCurrentMacroArgs(void);
|
|
void sym_AddString(char *tzSym, char *tzValue);
|
|
ULONG sym_GetValue(char *s);
|
|
ULONG sym_GetDefinedValue(char *s);
|
|
ULONG sym_isDefined(char *tzName);
|
|
void sym_Purge(char *tzName);
|
|
ULONG sym_isConstDefined(char *tzName);
|
|
int sym_IsRelocDiffDefined(char *tzSym1, char *tzSym2);
|
|
|
|
#endif
|