ref: a48801a675938f4312b5c1bf3b869ca7beaacac9
dir: /include/link/symbol.h/
/*
* This file is part of RGBDS.
*
* Copyright (c) 1997-2019, Carsten Sorensen and RGBDS contributors.
*
* SPDX-License-Identifier: MIT
*/
/* Declarations manipulating symbols */
#ifndef RGBDS_LINK_SYMBOL_H
#define RGBDS_LINK_SYMBOL_H
/* GUIDELINE: external code MUST NOT BE AWARE of the data structure used!! */
#include <stdint.h>
#include "linkdefs.h"
struct FileStackNode;
struct Symbol {
/* Info contained in the object files */
char *name;
enum ExportLevel type;
char const *objFileName;
struct FileStackNode const *src;
int32_t lineNo;
int32_t sectionID;
union {
int32_t offset;
int32_t value;
};
/* Extra info computed during linking */
struct Section *section;
};
/*
* Execute a callback for each symbol currently registered.
* This is done to avoid exposing the data structure in which symbol are stored.
* @param callback The function to call for each symbol;
* the first argument will be a pointer to the symbol,
* the second argument will be the pointer `arg`.
* @param arg A pointer which will be passed to all calls to `callback`.
*/
void sym_ForEach(void (*callback)(struct Symbol *, void *), void *arg);
void sym_AddSymbol(struct Symbol *symbol);
/**
* Finds a symbol in all the defined symbols.
* @param name The name of the symbol to look for
* @return A pointer to the symbol, or NULL if not found.
*/
struct Symbol *sym_GetSymbol(char const *name);
/**
* `free`s all symbol memory that was allocated.
*/
void sym_CleanupSymbols(void);
#endif /* RGBDS_LINK_SYMBOL_H */