freebsd-skq/sys/dev/aic7xxx/aicasm/aicasm.c
Justin T. Gibbs 1c147cc352 aic7xxx.seq:
Stick 4 more, twin channel only, instructions behind
	.if ( TWIN_CHANNEL)

aic7xxx_asm.c:
	Add the -O options which allows the specification of which options
	to include in a program listing.  This makes it possible to easily
	determine the address of any instruction in the program across
	different hardware/option configurations.  Updated usage() as well.
1997-03-18 19:18:39 +00:00

483 lines
12 KiB
C

/*
* Aic7xxx SCSI host adapter firmware asssembler
*
* Copyright (c) 1997 Justin T. Gibbs.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: aic7xxx_asm.c,v 1.15 1997/03/16 07:08:15 gibbs Exp $
*/
#include <sys/types.h>
#include <sys/mman.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sysexits.h>
#include <unistd.h>
#include "aic7xxx_asm.h"
#include "symbol.h"
#include "sequencer.h"
static void usage __P((void));
static void back_patch __P((void));
static void output_code __P((FILE *ofile));
static void output_listing __P((FILE *listfile, char *ifilename,
char *options));
static struct patch *next_patch __P((struct patch *cur_patch, int options,
int instrptr));
struct path_list search_path;
int includes_search_curdir;
char *appname;
FILE *ofile;
char *ofilename;
static STAILQ_HEAD(,instruction) seq_program;
static STAILQ_HEAD(, patch) patch_list;
symlist_t patch_options;
#if DEBUG
extern int yy_flex_debug;
extern int yydebug;
#endif
extern FILE *yyin;
extern int yyparse __P((void));
int
main(argc, argv)
int argc;
char *argv[];
{
extern char *optarg;
extern int optind;
int ch;
int retval;
char *inputfilename;
char *regfilename;
FILE *regfile;
char *listfilename;
FILE *listfile;
char *options;
SLIST_INIT(&search_path);
STAILQ_INIT(&seq_program);
STAILQ_INIT(&patch_list);
SLIST_INIT(&patch_options);
includes_search_curdir = 1;
appname = *argv;
regfile = NULL;
listfile = NULL;
options = NULL;
#if DEBUG
yy_flex_debug = 0;
#endif
while ((ch = getopt(argc, argv, "d:l:n:o:r:I:O:")) != EOF) {
switch(ch) {
case 'd':
#if DEBUG
if (strcmp(optarg, "s") == 0)
yy_flex_debug = 1;
else if (strcmp(optarg, "p") == 0)
yydebug = 1;
#else
stop("-d: Assembler not built with debugging "
"information", EX_SOFTWARE);
#endif
break;
case 'l':
/* Create a program listing */
if ((listfile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
listfilename = optarg;
break;
case 'n':
/* Don't complain about the -nostdinc directrive */
if (strcmp(optarg, "ostdinc")) {
fprintf(stderr, "%s: Unknown option -%c%s\n",
appname, ch, optarg);
usage();
/* NOTREACHED */
}
break;
case 'o':
if ((ofile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
ofilename = optarg;
break;
case 'O':
/* Patches to include in the listing */
options = optarg;
break;
case 'r':
if ((regfile = fopen(optarg, "w")) == NULL) {
perror(optarg);
stop(NULL, EX_CANTCREAT);
}
regfilename = optarg;
break;
case 'I':
{
path_entry_t include_dir;
if (strcmp(optarg, "-") == 0) {
if (includes_search_curdir == 0) {
fprintf(stderr, "%s: Warning - '-I-' "
"specified multiple "
"times\n", appname);
}
includes_search_curdir = 0;
for (include_dir = search_path.slh_first;
include_dir != NULL;
include_dir = include_dir->links.sle_next)
/*
* All entries before a '-I-' only
* apply to includes specified with
* quotes instead of "<>".
*/
include_dir->quoted_includes_only = 1;
} else {
include_dir =
(path_entry_t)malloc(sizeof(*include_dir));
if (include_dir == NULL) {
perror(optarg);
stop(NULL, EX_OSERR);
}
include_dir->directory = strdup(optarg);
if (include_dir->directory == NULL) {
perror(optarg);
stop(NULL, EX_OSERR);
}
include_dir->quoted_includes_only = 0;
SLIST_INSERT_HEAD(&search_path, include_dir,
links);
}
break;
}
case '?':
default:
usage();
/* NOTREACHED */
}
}
argc -= optind;
argv += optind;
if (argc != 1) {
fprintf(stderr, "%s: No input file specifiled\n", appname);
usage();
/* NOTREACHED */
}
symtable_open();
inputfilename = *argv;
include_file(*argv, SOURCE_FILE);
retval = yyparse();
if (retval == 0) {
back_patch();
if (ofile != NULL)
output_code(ofile);
if (regfile != NULL)
symtable_dump(regfile);
if (listfile != NULL)
output_listing(listfile, inputfilename, options);
}
stop(NULL, 0);
/* NOTREACHED */
return (0);
}
static void
usage()
{
(void)fprintf(stderr,
"usage: %-16s [-nostdinc] [-I-] [-I directory] [-o output_file]
[-r register_output_file] [-l program_list_file]
[-O option_name[|options_name2]] input_file\n",
appname);
exit(EX_USAGE);
}
static void
back_patch()
{
struct instruction *cur_instr;
for(cur_instr = seq_program.stqh_first;
cur_instr != NULL;
cur_instr = cur_instr->links.stqe_next) {
if (cur_instr->patch_label != NULL) {
struct ins_format3 *f3_instr;
u_int address;
if (cur_instr->patch_label->type != LABEL) {
char buf[255];
snprintf(buf, sizeof(buf),
"Undefined label %s",
cur_instr->patch_label->name);
stop(buf, EX_DATAERR);
/* NOTREACHED */
}
f3_instr = &cur_instr->format.format3;
address = ((f3_instr->opcode_addr & ADDR_HIGH_BIT) << 8)
| f3_instr->address;
address += cur_instr->patch_label->info.linfo->address;
f3_instr->opcode_addr &= ~ADDR_HIGH_BIT;
f3_instr->opcode_addr |= (address >> 8) & ADDR_HIGH_BIT;
f3_instr->address = address & 0xFF;
}
}
}
static void
output_code(ofile)
FILE *ofile;
{
struct instruction *cur_instr;
patch_t *cur_patch;
symbol_node_t *cur_node;
int instrcount;
instrcount = 0;
fprintf(ofile,
"/*
* DO NOT EDIT - This file is automatically generated.
*/\n");
fprintf(ofile, "static u_int8_t seqprog[] = {\n");
for(cur_instr = seq_program.stqh_first;
cur_instr != NULL;
cur_instr = cur_instr->links.stqe_next) {
fprintf(ofile, "\t0x%02x, 0x%02x, 0x%02x, 0x%02x,\n",
cur_instr->format.bytes[0],
cur_instr->format.bytes[1],
cur_instr->format.bytes[2],
cur_instr->format.bytes[3]);
instrcount++;
}
fprintf(ofile, "};\n");
/*
* Output the patch list, option definitions first.
*/
for(cur_node = patch_options.slh_first;
cur_node != NULL;
cur_node = cur_node->links.sle_next) {
fprintf(ofile, "#define\t%-16s\t0x%x\n", cur_node->symbol->name,
cur_node->symbol->info.condinfo->value);
}
fprintf(ofile,
"struct patch {
int options;
int negative;
int begin;
int end;
} patches[] = {\n");
for(cur_patch = patch_list.stqh_first;
cur_patch != NULL;
cur_patch = cur_patch->links.stqe_next)
fprintf(ofile, "\t{ 0x%08x, %d, 0x%03x, 0x%03x },\n",
cur_patch->options, cur_patch->negative, cur_patch->begin,
cur_patch->end);
fprintf(ofile, "\t{ 0x%08x, %d, 0x%03x, 0x%03x }\n};\n",
0, 0, 0, 0);
fprintf(stderr, "%s: %d instructions used\n", appname, instrcount);
}
void
output_listing(listfile, ifilename, patches)
FILE *listfile;
char *ifilename;
char *patches;
{
FILE *ifile;
int line;
struct instruction *cur_instr;
int instrcount;
int instrptr;
char buf[1024];
patch_t *cur_patch;
char *option_spec;
int options;
instrcount = 0;
instrptr = 0;
line = 1;
options = 1; /* All code outside of patch blocks */
if ((ifile = fopen(ifilename, "r")) == NULL) {
perror(ifilename);
stop(NULL, EX_DATAERR);
}
/*
* Determine which options to apply to this listing.
*/
while ((option_spec = strsep(&patches, "|")) != NULL) {
symbol_t *symbol;
symbol = symtable_get(option_spec);
if (symbol->type != CONDITIONAL) {
stop("Invalid option specified in patch list for "
"program listing", EX_USAGE);
/* NOTREACHED */
}
options |= symbol->info.condinfo->value;
}
cur_patch = patch_list.stqh_first;
for(cur_instr = seq_program.stqh_first;
cur_instr != NULL;
cur_instr = cur_instr->links.stqe_next,instrcount++) {
cur_patch = next_patch(cur_patch, options, instrcount);
if (cur_patch
&& cur_patch->begin <= instrcount
&& cur_patch->end > instrcount)
/* Don't count this instruction as it is in a patch
* that was removed.
*/
continue;
while (line < cur_instr->srcline) {
fgets(buf, sizeof(buf), ifile);
fprintf(listfile, "\t\t%s", buf);
line++;
}
fprintf(listfile, "%03x %02x%02x%02x%02x", instrptr,
cur_instr->format.bytes[0],
cur_instr->format.bytes[1],
cur_instr->format.bytes[2],
cur_instr->format.bytes[3]);
fgets(buf, sizeof(buf), ifile);
fprintf(listfile, "\t%s", buf);
line++;
instrptr++;
}
/* Dump the remainder of the file */
while(fgets(buf, sizeof(buf), ifile) != NULL)
fprintf(listfile, "\t\t%s", buf);
fclose(ifile);
}
static struct patch *
next_patch(cur_patch, options, instrptr)
struct patch *cur_patch;
int options;
int instrptr;
{
while(cur_patch != NULL) {
if (((cur_patch->options & options) != 0
&& cur_patch->negative == FALSE)
|| ((cur_patch->options & options) == 0
&& cur_patch->negative == TRUE)
|| (instrptr >= cur_patch->end)) {
/*
* Either we want to keep this section of code,
* or we have consumed this patch. Skip to the
* next patch.
*/
cur_patch = cur_patch->links.stqe_next;
} else
/* Found an okay patch */
break;
}
return (cur_patch);
}
/*
* Print out error information if appropriate, and clean up before
* terminating the program.
*/
void
stop(string, err_code)
const char *string;
int err_code;
{
if (string != NULL) {
fprintf(stderr, "%s: ", appname);
if (yyfilename != NULL) {
fprintf(stderr, "Stopped at file %s, line %d - ",
yyfilename, yylineno);
}
fprintf(stderr, "%s\n", string);
}
if (ofile != NULL) {
fclose(ofile);
if (err_code != 0) {
fprintf(stderr, "%s: Removing %s due to error\n",
appname, ofilename);
unlink(ofilename);
}
}
symlist_free(&patch_options);
symtable_close();
exit(err_code);
}
struct instruction *
seq_alloc()
{
struct instruction *new_instr;
new_instr = (struct instruction *)malloc(sizeof(struct instruction));
if (new_instr == NULL)
stop("Unable to malloc instruction object", EX_SOFTWARE);
memset(new_instr, 0, sizeof(*new_instr));
STAILQ_INSERT_TAIL(&seq_program, new_instr, links);
new_instr->srcline = yylineno;
return new_instr;
}
patch_t *
patch_alloc()
{
patch_t *new_patch;
new_patch = (patch_t *)malloc(sizeof(patch_t));
if (new_patch == NULL)
stop("Unable to malloc patch object", EX_SOFTWARE);
memset(new_patch, 0, sizeof(*new_patch));
STAILQ_INSERT_TAIL(&patch_list, new_patch, links);
return new_patch;
}