336 lines
8.5 KiB
C
336 lines
8.5 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <getopt.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <stdarg.h>
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#include "build-config.h"
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#include "misc.h"
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#include "lf.h"
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#include "table.h"
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#endif
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/****************************************************************/
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int spreg_lookup_table = 1;
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enum {
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nr_of_sprs = 1024,
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};
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/****************************************************************/
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typedef enum {
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spreg_name,
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spreg_reg_nr,
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spreg_readonly,
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spreg_length,
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nr_spreg_fields,
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} spreg_fields;
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typedef struct _spreg_table_entry spreg_table_entry;
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struct _spreg_table_entry {
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char *name;
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int spreg_nr;
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int is_readonly;
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int length;
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table_entry *entry;
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spreg_table_entry *next;
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};
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typedef struct _spreg_table spreg_table;
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struct _spreg_table {
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spreg_table_entry *sprs;
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};
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static void
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spreg_table_insert(spreg_table *table, table_entry *entry)
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{
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/* create a new spr entry */
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spreg_table_entry *new_spr = ZALLOC(spreg_table_entry);
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new_spr->next = NULL;
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new_spr->entry = entry;
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new_spr->spreg_nr = atoi(entry->fields[spreg_reg_nr]);
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new_spr->is_readonly = (entry->fields[spreg_readonly]
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? atoi(entry->fields[spreg_readonly])
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: 0);
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new_spr->length = atoi(entry->fields[spreg_length]);
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new_spr->name = (char*)zalloc(strlen(entry->fields[spreg_name]) + 1);
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ASSERT(new_spr->name != NULL);
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{
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int i;
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for (i = 0; entry->fields[spreg_name][i] != '\0'; i++) {
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if (isupper(entry->fields[spreg_name][i]))
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new_spr->name[i] = tolower(entry->fields[spreg_name][i]);
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else
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new_spr->name[i] = entry->fields[spreg_name][i];
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}
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}
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/* insert, by spreg_nr order */
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{
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spreg_table_entry **ptr_to_spreg_entry = &table->sprs;
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spreg_table_entry *spreg_entry = *ptr_to_spreg_entry;
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while (spreg_entry != NULL && spreg_entry->spreg_nr < new_spr->spreg_nr) {
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ptr_to_spreg_entry = &spreg_entry->next;
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spreg_entry = *ptr_to_spreg_entry;
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}
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ASSERT(spreg_entry == NULL || spreg_entry->spreg_nr != new_spr->spreg_nr);
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*ptr_to_spreg_entry = new_spr;
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new_spr->next = spreg_entry;
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}
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}
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static spreg_table *
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spreg_table_load(char *file_name)
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{
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table *file = table_open(file_name, nr_spreg_fields, 0);
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spreg_table *table = ZALLOC(spreg_table);
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{
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table_entry *entry;
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while ((entry = table_entry_read(file)) != NULL) {
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spreg_table_insert(table, entry);
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}
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}
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return table;
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}
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/****************************************************************/
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char *spreg_attributes[] = {
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"is_valid",
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"is_readonly",
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"name",
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"index",
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"length",
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0
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};
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static void
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gen_spreg_h(spreg_table *table, lf *file)
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{
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spreg_table_entry *entry;
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char **attribute;
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lf_print__gnu_copyleft(file);
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lf_printf(file, "\n");
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lf_printf(file, "#ifndef _SPREG_H_\n");
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lf_printf(file, "#define _SPREG_H_\n");
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lf_printf(file, "\n");
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lf_printf(file, "typedef unsigned_word spreg;\n");
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lf_printf(file, "\n");
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lf_printf(file, "typedef enum {\n");
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for (entry = table->sprs;
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entry != NULL ;
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entry = entry->next) {
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lf_printf(file, " spr_%s = %d,\n", entry->name, entry->spreg_nr);
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}
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lf_printf(file, " nr_of_sprs = %d\n", nr_of_sprs);
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lf_printf(file, "} sprs;\n");
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lf_printf(file, "\n");
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for (attribute = spreg_attributes;
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*attribute != NULL;
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attribute++) {
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if (strcmp(*attribute, "name") == 0) {
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lf_print_function_type(file, "const char *", "INLINE_SPREG", " ");
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lf_printf(file, "spr_%s(sprs spr);\n", *attribute);
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}
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else {
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lf_print_function_type(file, "int", "INLINE_SPREG", " ");
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lf_printf(file, "spr_%s(sprs spr);\n", *attribute);
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}
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}
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lf_printf(file, "\n");
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lf_printf(file, "#endif /* _SPREG_H_ */\n");
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}
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static void
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gen_spreg_c(spreg_table *table, lf *file)
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{
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spreg_table_entry *entry;
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char **attribute;
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int spreg_nr;
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lf_print__gnu_copyleft(file);
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lf_printf(file, "\n");
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lf_printf(file, "#ifndef _SPREG_C_\n");
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lf_printf(file, "#define _SPREG_C_\n");
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lf_printf(file, "\n");
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lf_printf(file, "#include \"basics.h\"\n");
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lf_printf(file, "#include \"spreg.h\"\n");
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lf_printf(file, "\n");
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lf_printf(file, "typedef struct _spreg_info {\n");
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lf_printf(file, " char *name;\n");
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lf_printf(file, " int is_valid;\n");
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lf_printf(file, " int length;\n");
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lf_printf(file, " int is_readonly;\n");
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lf_printf(file, " int index;\n");
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lf_printf(file, "} spreg_info;\n");
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lf_printf(file, "\n");
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lf_printf(file, "static spreg_info spr_info[nr_of_sprs+1] = {\n");
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entry = table->sprs;
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for (spreg_nr = 0; spreg_nr < nr_of_sprs+1; spreg_nr++) {
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if (entry == NULL || spreg_nr < entry->spreg_nr)
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lf_printf(file, " { 0, 0, 0, 0, %d},\n", spreg_nr);
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else {
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lf_printf(file, " { \"%s\", %d, %d, %d, spr_%s /*%d*/ },\n",
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entry->name, 1, entry->length, entry->is_readonly,
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entry->name, entry->spreg_nr);
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entry = entry->next;
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}
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}
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lf_printf(file, "};\n");
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for (attribute = spreg_attributes;
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*attribute != NULL;
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attribute++) {
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lf_printf(file, "\n");
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if (strcmp(*attribute, "name") == 0) {
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lf_print_function_type(file, "const char *", "INLINE_SPREG", "\n");
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}
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else {
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lf_print_function_type(file, "int", "INLINE_SPREG", "\n");
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}
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lf_printf(file, "spr_%s(sprs spr)\n", *attribute);
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lf_printf(file, "{\n");
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if (spreg_lookup_table
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|| strcmp(*attribute, "name") == 0
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|| strcmp(*attribute, "index") == 0)
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lf_printf(file, " return spr_info[spr].%s;\n",
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*attribute);
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else {
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spreg_table_entry *entry;
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lf_printf(file, " switch (spr) {\n");
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for (entry = table->sprs; entry != NULL; entry = entry->next) {
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lf_printf(file, " case %d:\n", entry->spreg_nr);
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if (strcmp(*attribute, "is_valid") == 0)
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lf_printf(file, " return 1;\n");
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else if (strcmp(*attribute, "is_readonly") == 0)
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lf_printf(file, " return %d;\n", entry->is_readonly);
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else if (strcmp(*attribute, "length") == 0)
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lf_printf(file, " return %d;\n", entry->length);
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else
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ASSERT(0);
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}
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lf_printf(file, " default:\n");
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lf_printf(file, " return 0;\n");
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lf_printf(file, " }\n");
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}
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lf_printf(file, "}\n");
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}
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lf_printf(file, "\n");
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lf_printf(file, "#endif /* _SPREG_C_ */\n");
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}
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/****************************************************************/
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int
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main(int argc,
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char **argv,
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char **envp)
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{
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lf_file_references file_references = lf_include_references;
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spreg_table *sprs = NULL;
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char *real_file_name = NULL;
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int is_header = 0;
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int ch;
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if (argc <= 1) {
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printf("Usage: dgen ...\n");
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printf("-s Use switch instead of table\n");
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printf("-n <file-name> Use this as cpp line numbering name\n");
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printf("-h Output header file\n");
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printf("-p <spreg-file> Output spreg.h(P) or spreg.c(p)\n");
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printf("-L Suppress cpp line numbering in output files\n");
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}
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while ((ch = getopt(argc, argv, "hLsn:r:p:")) != -1) {
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fprintf(stderr, "\t-%c %s\n", ch, ( optarg ? optarg : ""));
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switch(ch) {
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case 's':
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spreg_lookup_table = 0;
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break;
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case 'r':
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sprs = spreg_table_load(optarg);
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break;
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case 'n':
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real_file_name = strdup(optarg);
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break;
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case 'L':
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file_references = lf_omit_references;
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break;
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case 'h':
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is_header = 1;
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break;
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case 'p':
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{
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lf *file = lf_open(optarg, real_file_name, file_references,
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(is_header ? lf_is_h : lf_is_c),
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argv[0]);
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if (is_header)
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gen_spreg_h(sprs, file);
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else
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gen_spreg_c(sprs, file);
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lf_close(file);
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is_header = 0;
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}
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real_file_name = NULL;
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break;
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default:
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error("unknown option\n");
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}
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}
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return 0;
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}
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