mirror of
https://github.com/gbdev/rgbds.git
synced 2025-11-20 18:22:07 +00:00
0e24adcafd
The goal was to improve readability, but along the way a few things were gained. - Sorted sym and map files - Infrastructure for supporting multiple .o versions - Valgrind-proof, as far as my testing goes anyways - Improved verbosity messages - Added error checking - Performance improvements, see end of commit message The readability improvement was spurred while trying to make sense of the old code while trying to implement features such as sorted sym and map files. I also did my best to remove hardcoded logic, such that modifications should be doable; for example, "RAM loading" sections, which are linked against a different location than the one they're stored at. Some work remains to be done, see the "TODO:" and "FIXME:" comments. Further, while regression tests pass, this new linker should be tested on different codebases (ideally while instrumented with `make develop` and under valgrind). The few errors spotted in the man pages (alignment) need to be corrected. Finally, documentation comments need to be written, I have written a lot of them but not all. This also provides a significant performance boost (benchmarked with a 51994-symbol project): Current master RGBLINK: 2.02user 0.03system 0:02.06elapsed 99%CPU (0avgtext+0avgdata 84336maxresident)k 0inputs+11584outputs (0major+20729minor)pagefaults 0swaps Rewritten RGBLINK: 0.19user 0.06system 0:00.63elapsed 40%CPU (0avgtext+0avgdata 32460maxresident)k 23784inputs+11576outputs (0major+7672minor)pagefaults 0swaps
35 lines
702 B
C
35 lines
702 B
C
/*
|
|
* This file is part of RGBDS.
|
|
*
|
|
* Copyright (c) 1997-2019, Carsten Sorensen and RGBDS contributors.
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
/* Parsing a linker script */
|
|
#ifndef RGBDS_LINK_SCRIPT_H
|
|
#define RGBDS_LINK_SCRIPT_H
|
|
|
|
#include <stdint.h>
|
|
|
|
struct SectionPlacement {
|
|
struct Section *section;
|
|
uint16_t org;
|
|
uint32_t bank;
|
|
};
|
|
|
|
extern uint64_t script_lineNo;
|
|
|
|
/**
|
|
* Parses the linker script to return the next section constraint
|
|
* @return A pointer to a struct, or NULL on EOF. The pointer shouldn't be freed
|
|
*/
|
|
struct SectionPlacement *script_NextSection(void);
|
|
|
|
/**
|
|
* `free`s all assignment memory that was allocated.
|
|
*/
|
|
void script_Cleanup(void);
|
|
|
|
#endif /* RGBDS_LINK_SCRIPT_H */
|