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binutils-gdb/sim/igen/lf.c

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/* This file is part of the program psim.
Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdarg.h>
#include <ctype.h>
#include "config.h"
#include "misc.h"
#include "lf.h"
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
struct _lf {
FILE *stream;
int line_nr; /* nr complete lines written, curr line is line_nr+1 */
int indent;
int line_blank;
const char *name;
const char *program;
lf_file_references references;
lf_file_type type;
};
lf *
lf_open(char *name,
char *real_name,
lf_file_references references,
lf_file_type type,
const char *program)
{
/* create a file object */
lf *new_lf = ZALLOC(lf);
ASSERT(new_lf != NULL);
new_lf->references = references;
new_lf->type = type;
new_lf->name = (real_name == NULL ? name : real_name);
new_lf->program = program;
/* attach to stdout if pipe */
if (!strcmp(name, "-")) {
new_lf->stream = stdout;
}
else {
/* create a new file */
new_lf->stream = fopen(name, "w");
if (new_lf->stream == NULL) {
perror(name);
exit(1);
}
}
return new_lf;
}
void
lf_close(lf *file)
{
if (file->stream != stdout) {
if (fclose(file->stream)) {
perror("lf_close.fclose");
exit(1);
}
free(file);
}
}
int
lf_putchr(lf *file,
const char chr)
{
int nr = 0;
if (chr == '\n') {
file->line_nr += 1;
file->line_blank = 1;
}
else if (file->line_blank) {
int pad;
for (pad = file->indent; pad > 0; pad--)
putc(' ', file->stream);
nr += file->indent;
file->line_blank = 0;
}
putc(chr, file->stream);
nr += 1;
return nr;
}
void
lf_indent_suppress(lf *file)
{
file->line_blank = 0;
}
int
lf_putstr(lf *file,
const char *string)
{
int nr = 0;
const char *chp;
if (string != NULL) {
for (chp = string; *chp != '\0'; chp++) {
nr += lf_putchr(file, *chp);
}
}
return nr;
}
static int
do_lf_putunsigned(lf *file,
unsigned u)
{
int nr = 0;
if (u > 0) {
nr += do_lf_putunsigned(file, u / 10);
nr += lf_putchr(file, (u % 10) + '0');
}
return nr;
}
int
lf_putint(lf *file,
int decimal)
{
int nr = 0;
if (decimal == 0)
nr += lf_putchr(file, '0');
else if (decimal < 0) {
nr += lf_putchr(file, '-');
nr += do_lf_putunsigned(file, -decimal);
}
else if (decimal > 0) {
nr += do_lf_putunsigned(file, decimal);
}
else
ASSERT(0);
return nr;
}
int
lf_printf(lf *file,
const char *fmt,
...)
{
int nr = 0;
char buf[1024];
va_list ap;
va_start(ap, fmt);
vsprintf(buf, fmt, ap);
/* FIXME - this is really stuffed but so is vsprintf() on a sun! */
ASSERT(strlen(buf) > 0 && strlen(buf) < sizeof(buf));
nr += lf_putstr(file, buf);
va_end(ap);
return nr;
}
int
lf_print__c_code(lf *file,
const char *code)
{
int nr = 0;
const char *chp = code;
int in_bit_field = 0;
while (*chp != '\0') {
if (*chp == '\t')
chp++;
if (*chp == '#')
lf_indent_suppress(file);
while (*chp != '\0' && *chp != '\n') {
if (chp[0] == '{' && !isspace(chp[1])) {
in_bit_field = 1;
nr += lf_putchr(file, '_');
}
else if (in_bit_field && chp[0] == ':') {
nr += lf_putchr(file, '_');
}
else if (in_bit_field && *chp == '}') {
nr += lf_putchr(file, '_');
in_bit_field = 0;
}
else {
nr += lf_putchr(file, *chp);
}
chp++;
}
if (in_bit_field)
error("bit field paren miss match some where\n");
if (*chp == '\n') {
nr += lf_putchr(file, '\n');
chp++;
}
}
nr += lf_putchr(file, '\n');
return nr;
}
int
lf_print__external_reference(lf *file,
int line_nr,
const char *file_name)
{
int nr = 0;
switch (file->references) {
case lf_include_references:
lf_indent_suppress(file);
nr += lf_putstr(file, "#line ");
nr += lf_putint(file, line_nr);
nr += lf_putstr(file, " \"");
nr += lf_putstr(file, file_name);
nr += lf_putstr(file, "\"\n");
break;
case lf_omit_references:
break;
}
return nr;
}
int
lf_print__internal_reference(lf *file)
{
int nr = 0;
nr += lf_print__external_reference(file, file->line_nr+2, file->name);
/* line_nr == last_line, want to number from next */
return nr;
}
void
lf_indent(lf *file, int delta)
{
file->indent += delta;
}
int
lf_print__gnu_copyleft(lf *file)
{
int nr = 0;
switch (file->type) {
case lf_is_c:
case lf_is_h:
nr += lf_printf(file, "\
/* This file is part of the program psim.
Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
--
This file was generated by the program %s */
", filter_filename(file->program));
break;
default:
ASSERT(0);
break;
}
return nr;
}
int
lf_putbin(lf *file, int decimal, int width)
{
int nr = 0;
int bit;
ASSERT(width > 0);
for (bit = 1 << (width-1); bit != 0; bit >>= 1) {
if (decimal & bit)
nr += lf_putchr(file, '1');
else
nr += lf_putchr(file, '0');
}
return nr;
}
int
lf_print__this_file_is_empty(lf *file)
{
int nr = 0;
switch (file->type) {
case lf_is_c:
case lf_is_h:
nr += lf_printf(file,
"/* This generated file (%s) is intentionally left blank */\n",
file->name);
break;
default:
ASSERT(0);
}
return nr;
}
int
lf_print__ucase_filename(lf *file)
{
int nr = 0;
const char *chp = file->name;
while (*chp != '\0') {
char ch = *chp;
if (islower(ch)) {
nr += lf_putchr(file, toupper(ch));
}
else if (ch == '.')
nr += lf_putchr(file, '_');
else
nr += lf_putchr(file, ch);
chp++;
}
return nr;
}
int
lf_print__file_start(lf *file)
{
int nr = 0;
switch (file->type) {
case lf_is_h:
case lf_is_c:
nr += lf_print__gnu_copyleft(file);
nr += lf_printf(file, "\n");
nr += lf_printf(file, "#ifndef _");
nr += lf_print__ucase_filename(file);
nr += lf_printf(file, "_\n");
nr += lf_printf(file, "#define _");
nr += lf_print__ucase_filename(file);
nr += lf_printf(file, "_\n");
nr += lf_printf(file, "\n");
break;
default:
ASSERT(0);
}
return nr;
}
int
lf_print__file_finish(lf *file)
{
int nr = 0;
switch (file->type) {
case lf_is_h:
case lf_is_c:
nr += lf_printf(file, "\n");
nr += lf_printf(file, "#endif /* _");
nr += lf_print__ucase_filename(file);
nr += lf_printf(file, "_*/\n");
break;
default:
ASSERT(0);
}
return nr;
}
int
lf_print_function_type(lf *file,
const char *type,
const char *prefix,
const char *trailing_space)
{
int nr = 0;
nr += lf_printf(file, "%s\\\n(%s)", prefix, type);
if (trailing_space != NULL)
nr += lf_printf(file, "%s", trailing_space);
return nr;
}
int
lf_print_function_type_function(lf *file,
print_function *print_type,
const char *prefix,
const char *trailing_space)
{
int nr = 0;
nr += lf_printf(file, "%s\\\n(", prefix);
nr += print_type(file);
nr += lf_printf(file, ")");
if (trailing_space != NULL)
nr += lf_printf(file, "%s", trailing_space);
return nr;
}
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