ref: f90857032c938ea9fc87d4f9bdefe9864c730774
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 { // Both types must be identical 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