ref: 4cc24f436947890f41a3e16392a3c7ec7e8949ba
dir: /include/asm/symbol.h/
/* * This file is part of RGBDS. * * Copyright (c) 1997-2018, Carsten Sorensen and RGBDS contributors. * * SPDX-License-Identifier: MIT */ #ifndef RGBDS_SYMBOL_H #define RGBDS_SYMBOL_H #include <stdbool.h> #include <stdint.h> #include <string.h> #include "types.h" #define HASHSIZE (1 << 16) #define MAXSYMLEN 256 enum SymbolType { SYM_LABEL, SYM_EQU, SYM_SET, SYM_MACRO, SYM_EQUS, SYM_REF // Forward reference to a label }; struct sSymbol { char tzName[MAXSYMLEN + 1]; enum SymbolType type; bool isConstant; /* Whether the symbol's value is currently known */ bool isExported; /* Whether the symbol is to be exported */ struct sSymbol *pScope; struct sSymbol *pNext; struct Section *pSection; int32_t nValue; uint32_t ulMacroSize; char *pMacro; int32_t (*Callback)(struct sSymbol const *self); char tzFileName[_MAX_PATH + 1]; /* File where the symbol was defined. */ uint32_t nFileLine; /* Line where the symbol was defined. */ }; static inline bool sym_IsDefined(struct sSymbol const *sym) { return sym->type != SYM_REF; } static inline bool sym_IsConstant(struct sSymbol const *sym) { return sym->isConstant; } static inline bool sym_IsNumeric(struct sSymbol const *sym) { return sym->type == SYM_LABEL || sym->type == SYM_EQU || sym->type == SYM_SET; } static inline bool sym_IsLocal(struct sSymbol const *sym) { return (sym->type == SYM_LABEL || sym->type == SYM_REF) && strchr(sym->tzName, '.'); } static inline bool sym_IsExported(struct sSymbol const *sym) { return sym->isExported; } int32_t sym_GetValue(struct sSymbol const *sym); uint32_t sym_CalcHash(const char *s); void sym_SetExportAll(uint8_t set); void sym_AddLocalReloc(char const *tzSym); void sym_AddReloc(char const *tzSym); void sym_Export(char const *tzSym); void sym_PrintSymbolTable(void); struct sSymbol *sym_FindMacro(char const *s); void sym_InitNewMacroArgs(void); void sym_AddNewMacroArg(char const *s); void sym_SaveCurrentMacroArgs(char *save[]); void sym_RestoreCurrentMacroArgs(char *save[]); void sym_UseNewMacroArgs(void); void sym_AddEqu(char const *tzSym, int32_t value); void sym_AddSet(char const *tzSym, int32_t value); void sym_Init(void); uint32_t sym_GetConstantValue(char const *s); struct sSymbol *sym_FindSymbol(char const *tzName); char *sym_FindMacroArg(int32_t i); char *sym_GetStringValue(struct sSymbol const *sym); void sym_UseCurrentMacroArgs(void); void sym_SetMacroArgID(uint32_t nMacroCount); void sym_AddMacro(char const *tzSym, int32_t nDefLineNo); void sym_Ref(char const *tzSym); void sym_ShiftCurrentMacroArgs(void); void sym_AddString(char const *tzSym, char const *tzValue); uint32_t sym_GetDefinedValue(char const *s); void sym_Purge(char const *tzName); bool sym_IsRelocDiffDefined(char const *tzSym1, char const *tzSym2); /* Functions to save and restore the current symbol scope. */ struct sSymbol *sym_GetCurrentSymbolScope(void); void sym_SetCurrentSymbolScope(struct sSymbol *pNewScope); #endif /* RGBDS_SYMBOL_H */