mirror of
https://github.com/cc65/cc65.git
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667 lines
20 KiB
C
667 lines
20 KiB
C
/*****************************************************************************/
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/* */
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/* main.c */
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/* */
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/* Main program for the co65 object file converter */
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/* */
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/* */
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/* */
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/* (C) 2003 Ullrich von Bassewitz */
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/* Römerstrasse 52 */
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/* D-70794 Filderstadt */
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/* EMail: uz@cc65.org */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <time.h>
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/* common */
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#include "chartype.h"
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#include "cmdline.h"
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#include "fname.h"
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#include "print.h"
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#include "segnames.h"
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#include "version.h"
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#include "xmalloc.h"
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#include "xsprintf.h"
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/* co65 */
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#include "error.h"
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#include "global.h"
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#include "o65.h"
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/*****************************************************************************/
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/* Code */
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/*****************************************************************************/
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static void Usage (void)
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/* Print usage information and exit */
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{
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fprintf (stderr,
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"Usage: %s [options] file\n"
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"Short options:\n"
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" -V\t\t\tPrint the version number\n"
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" -g\t\t\tAdd debug info to object file\n"
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" -h\t\t\tHelp (this text)\n"
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" -o name\t\tName the output file\n"
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" -v\t\t\tIncrease verbosity\n"
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"\n"
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"Long options:\n"
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" --bss-label name\tDefine and export a BSS segment label\n"
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" --bss-name seg\tSet the name of the BSS segment\n"
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" --code-label name\tDefine and export a CODE segment label\n"
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" --code-name seg\tSet the name of the CODE segment\n"
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" --data-label name\tDefine and export a DATA segment label\n"
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" --data-name seg\tSet the name of the DATA segment\n"
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" --debug-info\t\tAdd debug info to object file\n"
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" --help\t\tHelp (this text)\n"
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" --verbose\t\tIncrease verbosity\n"
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" --version\t\tPrint the version number\n"
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" --zeropage-label name\tDefine and export a ZEROPAGE segment label\n"
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" --zeropage-name seg\tSet the name of the ZEROPAGE segment\n",
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ProgName);
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}
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static void CheckLabelName (const char* Label)
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/* Check if the given label is a valid label name */
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{
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const char* L = Label;
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if (strlen (L) < 256 && (IsAlpha (*L) || *L== '_')) {
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while (*++L) {
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if (!IsAlNum (*L) && *L != '_') {
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break;
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}
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}
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}
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if (*L) {
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Error ("Label name `%s' is invalid", Label);
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}
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}
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static void CheckSegName (const char* Seg)
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/* Abort if the given name is not a valid segment name */
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{
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/* Print an error and abort if the name is not ok */
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if (!ValidSegName (Seg)) {
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Error ("Segment name `%s' is invalid", Seg);
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}
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}
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static void OptBssLabel (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --bss-label option */
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{
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/* Check for a label name */
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CheckLabelName (Arg);
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/* Set the label */
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BssLabel = xstrdup (Arg);
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}
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static void OptBssName (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --bss-name option */
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{
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/* Check for a valid name */
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CheckSegName (Arg);
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/* Set the name */
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BssSeg = xstrdup (Arg);
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}
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static void OptCodeLabel (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --code-label option */
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{
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/* Check for a label name */
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CheckLabelName (Arg);
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/* Set the label */
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CodeLabel = xstrdup (Arg);
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}
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static void OptCodeName (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --code-name option */
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{
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/* Check for a valid name */
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CheckSegName (Arg);
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/* Set the name */
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CodeSeg = xstrdup (Arg);
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}
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static void OptDataLabel (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --data-label option */
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{
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/* Check for a label name */
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CheckLabelName (Arg);
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/* Set the label */
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DataLabel = xstrdup (Arg);
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}
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static void OptDataName (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --data-name option */
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{
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/* Check for a valid name */
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CheckSegName (Arg);
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/* Set the name */
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DataSeg = xstrdup (Arg);
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}
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static void OptDebugInfo (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Add debug info to the object file */
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{
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DebugInfo = 1;
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}
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static void OptHelp (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Print usage information and exit */
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{
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Usage ();
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exit (EXIT_SUCCESS);
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}
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static void OptVerbose (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Increase verbosity */
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{
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++Verbosity;
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}
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static void OptVersion (const char* Opt attribute ((unused)),
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const char* Arg attribute ((unused)))
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/* Print the assembler version */
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{
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fprintf (stderr,
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"co65 V%u.%u.%u - (C) Copyright 1998-2003 Ullrich von Bassewitz\n",
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VER_MAJOR, VER_MINOR, VER_PATCH);
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}
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static void OptZeropageLabel (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --zeropage-label option */
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{
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/* Check for a label name */
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CheckLabelName (Arg);
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/* Set the label */
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ZeropageLabel = xstrdup (Arg);
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}
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static void OptZeropageName (const char* Opt attribute ((unused)), const char* Arg)
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/* Handle the --zeropage-name option */
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{
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/* Check for a valid name */
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CheckSegName (Arg);
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/* Set the name */
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ZeropageSeg = xstrdup (Arg);
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}
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static const char* SegReloc (const O65Data* D, const O65Reloc* R, unsigned long Val)
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{
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static char Buf[256];
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const O65Import* Import;
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switch (R->SegID) {
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case O65_SEGID_UNDEF:
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if (R->SymIdx >= CollCount (&D->Imports)) {
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Error ("Import index out of range (input file corrupt)");
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}
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Import = CollConstAt (&D->Imports, R->SymIdx);
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xsprintf (Buf, sizeof (Buf), "%s%+ld", Import->Name, (long) Val);
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break;
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case O65_SEGID_TEXT:
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xsprintf (Buf, sizeof (Buf), "%s%+ld", CodeLabel, (long) (Val - D->Header.tbase));
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break;
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case O65_SEGID_DATA:
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xsprintf (Buf, sizeof (Buf), "%s%+ld", DataLabel, (long) (Val - D->Header.dbase));
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break;
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case O65_SEGID_BSS:
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xsprintf (Buf, sizeof (Buf), "%s%+ld", BssLabel, (long) (Val - D->Header.bbase));
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break;
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case O65_SEGID_ZP:
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xsprintf (Buf, sizeof (Buf), "%s%+ld", ZeropageLabel, (long) Val - D->Header.zbase);
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break;
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case O65_SEGID_ABS:
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Error ("Relocation entry contains O65_SEGID_ABS");
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break;
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default:
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Internal ("Cannot handle this segment reference in reloc entry");
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}
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return Buf;
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}
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static void ConvertSeg (FILE* F, const O65Data* D, const Collection* Relocs,
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const unsigned char* Data, unsigned long Size)
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/* Convert one segment */
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{
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const O65Reloc* R;
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unsigned RIdx;
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unsigned long Byte;
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/* Get the pointer to the first relocation entry if there are any */
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R = (CollCount (Relocs) > 0)? CollConstAt (Relocs, 0) : 0;
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/* Initialize for the loop */
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RIdx = 0;
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Byte = 0;
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/* Walk over the segment data */
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while (Byte < Size) {
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if (R && R->Offs == Byte) {
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/* We've reached an entry that must be relocated */
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unsigned long Val;
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switch (R->Type) {
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case O65_RTYPE_WORD:
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if (Byte >= Size - 1) {
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Error ("Found WORD relocation, but not enough bytes left");
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} else {
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Val = (Data[Byte+1] << 8) + Data[Byte];
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Byte += 2;
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fprintf (F, "\t.word\t%s\n", SegReloc (D, R, Val));
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}
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break;
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case O65_RTYPE_HIGH:
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Val = (Data[Byte++] << 8) + R->Val;
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fprintf (F, "\t.byte\t>(%s)\n", SegReloc (D, R, Val));
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break;
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case O65_RTYPE_LOW:
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Val = Data[Byte++];
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fprintf (F, "\t.byte\t<(%s)\n", SegReloc (D, R, Val));
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break;
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case O65_RTYPE_SEGADDR:
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if (Byte >= Size - 2) {
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Error ("Found SEGADDR relocation, but not enough bytes left");
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} else {
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Val = (((unsigned long) Data[Byte+2]) << 16) +
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(((unsigned long) Data[Byte+1]) << 8) +
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(((unsigned long) Data[Byte+0]) << 0) +
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R->Val;
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Byte += 3;
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fprintf (F, "\t.faraddr\t%s\n", SegReloc (D, R, Val));
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}
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break;
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case O65_RTYPE_SEG:
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/* FALLTHROUGH for now */
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default:
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Internal ("Cannot handle relocation type %d at %lu",
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R->Type, Byte);
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}
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/* Get the next relocation entry */
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if (++RIdx < CollCount (Relocs)) {
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R = CollConstAt (Relocs, RIdx);
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} else {
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R = 0;
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}
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} else {
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/* Just a constant value */
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fprintf (F, "\t.byte\t$%02X\n", Data[Byte++]);
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}
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}
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fprintf (F, "\n");
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}
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static void Convert (void)
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/* Do file conversion */
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{
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FILE* F;
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unsigned I;
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int cc65;
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char* Author = 0;
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/* Read the o65 file into memory */
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O65Data* D = ReadO65File (InputName);
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/* For now, we do only accept o65 files generated by the ld65 linker which
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* have a specific format.
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*/
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if (D->Header.mode != O65_MODE_CC65) {
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Error ("Cannot convert o65 files of this type");
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}
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/* Output statistics */
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Print (stdout, 1, "Size of text segment: %5lu\n", D->Header.tlen);
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Print (stdout, 1, "Size of data segment: %5lu\n", D->Header.dlen);
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Print (stdout, 1, "Size of bss segment: %5lu\n", D->Header.blen);
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Print (stdout, 1, "Size of zeropage segment: %5lu\n", D->Header.zlen);
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Print (stdout, 1, "Number of imports: %5u\n", CollCount (&D->Imports));
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Print (stdout, 1, "Number of exports: %5u\n", CollCount (&D->Exports));
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Print (stdout, 1, "Number of text segment relocations: %5u\n", CollCount (&D->TextReloc));
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Print (stdout, 1, "Number of data segment relocations: %5u\n", CollCount (&D->DataReloc));
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/* Walk through the options and print them if verbose mode is enabled.
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* Check for a os=cc65 option and bail out if we didn't find one (for
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* now - later we switch to special handling).
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*/
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cc65 = 0;
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for (I = 0; I < CollCount (&D->Options); ++I) {
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/* Get the next option */
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const O65Option* O = CollConstAt (&D->Options, I);
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/* Check the type */
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switch (O->Type) {
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case O65_OPT_FILENAME:
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Print (stdout, 1, "O65 filename option: `%s'\n",
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GetO65OptionText (O));
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break;
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case O65_OPT_OS:
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if (O->Len == 2) {
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Warning ("Operating system option without data found");
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} else {
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cc65 = (O->Data[0] == O65_OS_CC65_MODULE);
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Print (stdout, 1, "O65 operating system option: `%s'\n",
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GetO65OSName (O->Data[0]));
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}
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break;
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case O65_OPT_ASM:
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Print (stdout, 1, "O65 assembler option: `%s'\n",
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GetO65OptionText (O));
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break;
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case O65_OPT_AUTHOR:
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if (Author) {
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xfree (Author);
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}
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Author = xstrdup (GetO65OptionText (O));
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Print (stdout, 1, "O65 author option: `%s'\n", Author);
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break;
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case O65_OPT_TIMESTAMP:
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Print (stdout, 1, "O65 timestamp option: `%s'\n",
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GetO65OptionText (O));
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break;
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default:
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Warning ("Found unknown option, type %d, length %d",
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O->Type, O->Len);
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break;
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}
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}
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/* Open the output file */
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F = fopen (OutputName, "wb");
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if (F == 0) {
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Error ("Cannot open `%s': %s", OutputName, strerror (errno));
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}
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/* Create a header */
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fprintf (F, ";\n; File generated by co65 v %u.%u.%u\n;\n",
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VER_MAJOR, VER_MINOR, VER_PATCH);
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/* Select the CPU */
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if ((D->Header.mode & O65_CPU_MASK) == O65_CPU_65816) {
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fprintf (F, "\t.p816\n");
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}
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/* Object file options */
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fprintf (F, "\t.fopt\t\tcompiler,\"co65 v %u.%u.%u\"\n",
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VER_MAJOR, VER_MINOR, VER_PATCH);
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if (Author) {
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fprintf (F, "\t.fopt\t\tauthor, \"%s\"\n", Author);
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xfree (Author);
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Author = 0;
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}
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/* Several other assembler options */
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fprintf (F, "\t.case\t\ton\n");
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fprintf (F, "\t.debuginfo\t%s\n", (DebugInfo != 0)? "on" : "off");
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/* Setup/export the segment labels */
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if (BssLabel) {
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fprintf (F, "\t.export\t\t%s\n", BssLabel);
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} else {
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BssLabel = xstrdup ("__BSS__");
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}
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if (CodeLabel) {
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fprintf (F, "\t.export\t\t%s\n", CodeLabel);
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} else {
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CodeLabel = xstrdup ("__CODE__");
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}
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if (DataLabel) {
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fprintf (F, "\t.export\t\t%s\n", DataLabel);
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} else {
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DataLabel = xstrdup ("__DATA__");
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}
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if (ZeropageLabel) {
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fprintf (F, "\t.export\t\t%s\n", ZeropageLabel);
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} else {
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/* If this is a cc65 module, override the name for the zeropage segment */
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if (cc65) {
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ZeropageLabel = "__ZP_RUN__";
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fprintf (F, "\t.import\t\t__ZP_RUN__\t; Linker generated symbol\n");
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} else {
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ZeropageLabel = xstrdup ("__ZEROPAGE__");
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}
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}
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/* End of header */
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fprintf (F, "\n");
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/* Imported identifiers */
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if (CollCount (&D->Imports) > 0) {
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for (I = 0; I < CollCount (&D->Imports); ++I) {
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/* Get the next import */
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O65Import* Import = CollAtUnchecked (&D->Imports, I);
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/* Import it by name */
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fprintf (F, "\t.import\t%s\n", Import->Name);
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}
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fprintf (F, "\n");
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}
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/* Exported identifiers */
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if (CollCount (&D->Exports) > 0) {
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for (I = 0; I < CollCount (&D->Exports); ++I) {
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/* Get the next import */
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O65Export* Export = CollAtUnchecked (&D->Exports, I);
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/* First define it */
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fprintf (F, "%s = XXX\n", Export->Name); /* ### */
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/* The export it by name */
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fprintf (F, "\t.export\t%s\n", Export->Name);
|
|
}
|
|
fprintf (F, "\n");
|
|
}
|
|
|
|
/* Code segment */
|
|
fprintf (F, ".segment\t\"%s\"\n", CodeSeg);
|
|
fprintf (F, "%s:\n", CodeLabel);
|
|
ConvertSeg (F, D, &D->TextReloc, D->Text, D->Header.tlen);
|
|
|
|
/* Data segment */
|
|
fprintf (F, ".segment\t\"%s\"\n", DataSeg);
|
|
fprintf (F, "%s:\n", DataLabel);
|
|
ConvertSeg (F, D, &D->DataReloc, D->Data, D->Header.dlen);
|
|
|
|
/* BSS segment */
|
|
fprintf (F, ".segment\t\"%s\"\n", BssSeg);
|
|
fprintf (F, "%s:\n", BssLabel);
|
|
fprintf (F, "\t.res\t%lu\n", D->Header.blen);
|
|
fprintf (F, "\n");
|
|
|
|
fprintf (F, "\t.end\n");
|
|
fclose (F);
|
|
}
|
|
|
|
|
|
|
|
int main (int argc, char* argv [])
|
|
/* Converter main program */
|
|
{
|
|
/* Program long options */
|
|
static const LongOpt OptTab[] = {
|
|
{ "--bss-label", 1, OptBssLabel },
|
|
{ "--bss-name", 1, OptBssName },
|
|
{ "--code-label", 1, OptCodeLabel },
|
|
{ "--code-name", 1, OptCodeName },
|
|
{ "--data-label", 1, OptDataLabel },
|
|
{ "--data-name", 1, OptDataName },
|
|
{ "--debug-info", 0, OptDebugInfo },
|
|
{ "--help", 0, OptHelp },
|
|
{ "--verbose", 0, OptVerbose },
|
|
{ "--version", 0, OptVersion },
|
|
{ "--zeropage-label", 1, OptZeropageLabel },
|
|
{ "--zeropage-name", 1, OptZeropageName },
|
|
};
|
|
|
|
unsigned I;
|
|
|
|
/* Initialize the cmdline module */
|
|
InitCmdLine (&argc, &argv, "co65");
|
|
|
|
/* Check the parameters */
|
|
I = 1;
|
|
while (I < ArgCount) {
|
|
|
|
/* Get the argument */
|
|
const char* Arg = ArgVec [I];
|
|
|
|
/* Check for an option */
|
|
if (Arg [0] == '-') {
|
|
switch (Arg [1]) {
|
|
|
|
case '-':
|
|
LongOption (&I, OptTab, sizeof(OptTab)/sizeof(OptTab[0]));
|
|
break;
|
|
|
|
case 'g':
|
|
OptDebugInfo (Arg, 0);
|
|
break;
|
|
|
|
case 'h':
|
|
OptHelp (Arg, 0);
|
|
break;
|
|
|
|
case 'o':
|
|
OutputName = GetArg (&I, 2);
|
|
break;
|
|
|
|
case 'v':
|
|
OptVerbose (Arg, 0);
|
|
break;
|
|
|
|
case 'V':
|
|
OptVersion (Arg, 0);
|
|
break;
|
|
|
|
default:
|
|
UnknownOption (Arg);
|
|
break;
|
|
|
|
}
|
|
} else {
|
|
/* Filename. Check if we already had one */
|
|
if (InputName) {
|
|
Error ("Don't know what to do with `%s'\n", Arg);
|
|
} else {
|
|
InputName = Arg;
|
|
}
|
|
}
|
|
|
|
/* Next argument */
|
|
++I;
|
|
}
|
|
|
|
/* Do we have an input file? */
|
|
if (InputName == 0) {
|
|
Error ("No input file\n");
|
|
}
|
|
|
|
/* Generate the name of the output file if none was specified */
|
|
if (OutputName == 0) {
|
|
OutputName = MakeFilename (InputName, AsmExt);
|
|
}
|
|
|
|
/* Do the conversion */
|
|
Convert ();
|
|
|
|
/* Return an apropriate exit code */
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
|
|
|