9ff0e63881
Be consistant about testing for parity errors after waiting for a REQ on the bus. Don't ack the last byte in a transaction until after we've cleared all target state. aic7xxx_asm.c: Test the return value of getopt against -1 not EOF. (Yet another shameless victum of the style guide being wrong).
483 lines
12 KiB
C
483 lines
12 KiB
C
/*
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* Aic7xxx SCSI host adapter firmware asssembler
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*
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* Copyright (c) 1997 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: aic7xxx_asm.c,v 1.16 1997/03/18 19:18:39 gibbs Exp $
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*/
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#include <sys/types.h>
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#include <sys/mman.h>
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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 <sysexits.h>
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#include <unistd.h>
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#include "aic7xxx_asm.h"
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#include "symbol.h"
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#include "sequencer.h"
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static void usage __P((void));
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static void back_patch __P((void));
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static void output_code __P((FILE *ofile));
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static void output_listing __P((FILE *listfile, char *ifilename,
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char *options));
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static struct patch *next_patch __P((struct patch *cur_patch, int options,
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int instrptr));
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struct path_list search_path;
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int includes_search_curdir;
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char *appname;
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FILE *ofile;
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char *ofilename;
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static STAILQ_HEAD(,instruction) seq_program;
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static STAILQ_HEAD(, patch) patch_list;
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symlist_t patch_options;
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#if DEBUG
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extern int yy_flex_debug;
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extern int yydebug;
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#endif
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extern FILE *yyin;
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extern int yyparse __P((void));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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extern char *optarg;
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extern int optind;
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int ch;
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int retval;
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char *inputfilename;
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char *regfilename;
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FILE *regfile;
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char *listfilename;
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FILE *listfile;
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char *options;
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SLIST_INIT(&search_path);
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STAILQ_INIT(&seq_program);
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STAILQ_INIT(&patch_list);
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SLIST_INIT(&patch_options);
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includes_search_curdir = 1;
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appname = *argv;
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regfile = NULL;
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listfile = NULL;
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options = NULL;
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#if DEBUG
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yy_flex_debug = 0;
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#endif
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while ((ch = getopt(argc, argv, "d:l:n:o:r:I:O:")) != -1) {
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switch(ch) {
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case 'd':
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#if DEBUG
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if (strcmp(optarg, "s") == 0)
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yy_flex_debug = 1;
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else if (strcmp(optarg, "p") == 0)
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yydebug = 1;
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#else
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stop("-d: Assembler not built with debugging "
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"information", EX_SOFTWARE);
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#endif
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break;
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case 'l':
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/* Create a program listing */
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if ((listfile = fopen(optarg, "w")) == NULL) {
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perror(optarg);
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stop(NULL, EX_CANTCREAT);
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}
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listfilename = optarg;
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break;
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case 'n':
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/* Don't complain about the -nostdinc directrive */
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if (strcmp(optarg, "ostdinc")) {
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fprintf(stderr, "%s: Unknown option -%c%s\n",
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appname, ch, optarg);
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usage();
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/* NOTREACHED */
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}
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break;
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case 'o':
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if ((ofile = fopen(optarg, "w")) == NULL) {
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perror(optarg);
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stop(NULL, EX_CANTCREAT);
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}
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ofilename = optarg;
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break;
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case 'O':
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/* Patches to include in the listing */
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options = optarg;
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break;
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case 'r':
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if ((regfile = fopen(optarg, "w")) == NULL) {
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perror(optarg);
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stop(NULL, EX_CANTCREAT);
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}
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regfilename = optarg;
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break;
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case 'I':
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{
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path_entry_t include_dir;
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if (strcmp(optarg, "-") == 0) {
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if (includes_search_curdir == 0) {
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fprintf(stderr, "%s: Warning - '-I-' "
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"specified multiple "
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"times\n", appname);
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}
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includes_search_curdir = 0;
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for (include_dir = search_path.slh_first;
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include_dir != NULL;
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include_dir = include_dir->links.sle_next)
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/*
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* All entries before a '-I-' only
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* apply to includes specified with
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* quotes instead of "<>".
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*/
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include_dir->quoted_includes_only = 1;
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} else {
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include_dir =
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(path_entry_t)malloc(sizeof(*include_dir));
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if (include_dir == NULL) {
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perror(optarg);
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stop(NULL, EX_OSERR);
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}
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include_dir->directory = strdup(optarg);
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if (include_dir->directory == NULL) {
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perror(optarg);
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stop(NULL, EX_OSERR);
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}
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include_dir->quoted_includes_only = 0;
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SLIST_INSERT_HEAD(&search_path, include_dir,
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links);
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}
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break;
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}
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case '?':
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default:
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usage();
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/* NOTREACHED */
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1) {
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fprintf(stderr, "%s: No input file specifiled\n", appname);
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usage();
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/* NOTREACHED */
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}
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symtable_open();
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inputfilename = *argv;
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include_file(*argv, SOURCE_FILE);
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retval = yyparse();
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if (retval == 0) {
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back_patch();
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if (ofile != NULL)
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output_code(ofile);
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if (regfile != NULL)
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symtable_dump(regfile);
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if (listfile != NULL)
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output_listing(listfile, inputfilename, options);
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}
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stop(NULL, 0);
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/* NOTREACHED */
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return (0);
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}
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static void
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usage()
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{
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(void)fprintf(stderr,
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"usage: %-16s [-nostdinc] [-I-] [-I directory] [-o output_file]
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[-r register_output_file] [-l program_list_file]
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[-O option_name[|options_name2]] input_file\n",
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appname);
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exit(EX_USAGE);
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}
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static void
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back_patch()
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{
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struct instruction *cur_instr;
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for(cur_instr = seq_program.stqh_first;
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cur_instr != NULL;
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cur_instr = cur_instr->links.stqe_next) {
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if (cur_instr->patch_label != NULL) {
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struct ins_format3 *f3_instr;
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u_int address;
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if (cur_instr->patch_label->type != LABEL) {
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char buf[255];
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snprintf(buf, sizeof(buf),
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"Undefined label %s",
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cur_instr->patch_label->name);
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stop(buf, EX_DATAERR);
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/* NOTREACHED */
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}
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f3_instr = &cur_instr->format.format3;
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address = ((f3_instr->opcode_addr & ADDR_HIGH_BIT) << 8)
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| f3_instr->address;
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address += cur_instr->patch_label->info.linfo->address;
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f3_instr->opcode_addr &= ~ADDR_HIGH_BIT;
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f3_instr->opcode_addr |= (address >> 8) & ADDR_HIGH_BIT;
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f3_instr->address = address & 0xFF;
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}
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}
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}
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static void
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output_code(ofile)
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FILE *ofile;
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{
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struct instruction *cur_instr;
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patch_t *cur_patch;
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symbol_node_t *cur_node;
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int instrcount;
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instrcount = 0;
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fprintf(ofile,
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"/*
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* DO NOT EDIT - This file is automatically generated.
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*/\n");
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fprintf(ofile, "static u_int8_t seqprog[] = {\n");
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for(cur_instr = seq_program.stqh_first;
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cur_instr != NULL;
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cur_instr = cur_instr->links.stqe_next) {
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fprintf(ofile, "\t0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
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cur_instr->format.bytes[0],
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cur_instr->format.bytes[1],
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cur_instr->format.bytes[2],
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cur_instr->format.bytes[3]);
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instrcount++;
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}
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fprintf(ofile, "};\n");
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/*
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* Output the patch list, option definitions first.
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*/
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for(cur_node = patch_options.slh_first;
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cur_node != NULL;
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cur_node = cur_node->links.sle_next) {
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fprintf(ofile, "#define\t%-16s\t0x%x\n", cur_node->symbol->name,
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cur_node->symbol->info.condinfo->value);
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}
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fprintf(ofile,
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"struct patch {
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int options;
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int negative;
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int begin;
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int end;
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} patches[] = {\n");
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for(cur_patch = patch_list.stqh_first;
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cur_patch != NULL;
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cur_patch = cur_patch->links.stqe_next)
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fprintf(ofile, "\t{ 0x%08x, %d, 0x%03x, 0x%03x },\n",
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cur_patch->options, cur_patch->negative, cur_patch->begin,
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cur_patch->end);
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fprintf(ofile, "\t{ 0x%08x, %d, 0x%03x, 0x%03x }\n};\n",
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0, 0, 0, 0);
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fprintf(stderr, "%s: %d instructions used\n", appname, instrcount);
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}
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void
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output_listing(listfile, ifilename, patches)
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FILE *listfile;
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char *ifilename;
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char *patches;
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{
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FILE *ifile;
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int line;
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struct instruction *cur_instr;
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int instrcount;
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int instrptr;
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char buf[1024];
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patch_t *cur_patch;
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char *option_spec;
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int options;
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instrcount = 0;
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instrptr = 0;
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line = 1;
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options = 1; /* All code outside of patch blocks */
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if ((ifile = fopen(ifilename, "r")) == NULL) {
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perror(ifilename);
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stop(NULL, EX_DATAERR);
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}
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/*
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* Determine which options to apply to this listing.
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*/
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while ((option_spec = strsep(&patches, "|")) != NULL) {
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symbol_t *symbol;
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symbol = symtable_get(option_spec);
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if (symbol->type != CONDITIONAL) {
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stop("Invalid option specified in patch list for "
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"program listing", EX_USAGE);
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/* NOTREACHED */
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}
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options |= symbol->info.condinfo->value;
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}
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cur_patch = patch_list.stqh_first;
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for(cur_instr = seq_program.stqh_first;
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cur_instr != NULL;
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cur_instr = cur_instr->links.stqe_next,instrcount++) {
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cur_patch = next_patch(cur_patch, options, instrcount);
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if (cur_patch
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&& cur_patch->begin <= instrcount
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&& cur_patch->end > instrcount)
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/* Don't count this instruction as it is in a patch
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* that was removed.
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*/
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continue;
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while (line < cur_instr->srcline) {
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fgets(buf, sizeof(buf), ifile);
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fprintf(listfile, "\t\t%s", buf);
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line++;
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}
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fprintf(listfile, "%03x %02x%02x%02x%02x", instrptr,
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cur_instr->format.bytes[0],
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cur_instr->format.bytes[1],
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cur_instr->format.bytes[2],
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cur_instr->format.bytes[3]);
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fgets(buf, sizeof(buf), ifile);
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fprintf(listfile, "\t%s", buf);
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line++;
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instrptr++;
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}
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/* Dump the remainder of the file */
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while(fgets(buf, sizeof(buf), ifile) != NULL)
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fprintf(listfile, "\t\t%s", buf);
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fclose(ifile);
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}
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static struct patch *
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next_patch(cur_patch, options, instrptr)
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struct patch *cur_patch;
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int options;
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int instrptr;
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{
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while(cur_patch != NULL) {
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if (((cur_patch->options & options) != 0
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&& cur_patch->negative == FALSE)
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|| ((cur_patch->options & options) == 0
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&& cur_patch->negative == TRUE)
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|| (instrptr >= cur_patch->end)) {
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/*
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* Either we want to keep this section of code,
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* or we have consumed this patch. Skip to the
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* next patch.
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*/
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cur_patch = cur_patch->links.stqe_next;
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} else
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/* Found an okay patch */
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break;
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}
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return (cur_patch);
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}
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/*
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* Print out error information if appropriate, and clean up before
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* terminating the program.
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*/
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void
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stop(string, err_code)
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const char *string;
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int err_code;
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{
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if (string != NULL) {
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fprintf(stderr, "%s: ", appname);
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if (yyfilename != NULL) {
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fprintf(stderr, "Stopped at file %s, line %d - ",
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yyfilename, yylineno);
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}
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fprintf(stderr, "%s\n", string);
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}
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if (ofile != NULL) {
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fclose(ofile);
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if (err_code != 0) {
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fprintf(stderr, "%s: Removing %s due to error\n",
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appname, ofilename);
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unlink(ofilename);
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}
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}
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symlist_free(&patch_options);
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symtable_close();
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exit(err_code);
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}
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struct instruction *
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seq_alloc()
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{
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struct instruction *new_instr;
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new_instr = (struct instruction *)malloc(sizeof(struct instruction));
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if (new_instr == NULL)
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stop("Unable to malloc instruction object", EX_SOFTWARE);
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memset(new_instr, 0, sizeof(*new_instr));
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STAILQ_INSERT_TAIL(&seq_program, new_instr, links);
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new_instr->srcline = yylineno;
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return new_instr;
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}
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patch_t *
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patch_alloc()
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{
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patch_t *new_patch;
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new_patch = (patch_t *)malloc(sizeof(patch_t));
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if (new_patch == NULL)
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stop("Unable to malloc patch object", EX_SOFTWARE);
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memset(new_patch, 0, sizeof(*new_patch));
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STAILQ_INSERT_TAIL(&patch_list, new_patch, links);
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return new_patch;
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}
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