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/* The IGEN simulator generator for GDB, the GNU Debugger.
Copyright 2002-2023 Free Software Foundation, Inc.
Contributed by Andrew Cagney.
This file is part of GDB.
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 3 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, see <http://www.gnu.org/licenses/>. */
#include "misc.h"
#include "lf.h"
#include "table.h"
#include "filter.h"
#include "igen.h"
#include "ld-insn.h"
#include "ld-decode.h"
#include "gen.h"
#include "gen-itable.h"
typedef struct _itable_info
{
int sizeof_form;
int sizeof_name;
int sizeof_file;
}
itable_info;
static void
itable_h_insn (lf *file,
const insn_table *entry,
const insn_entry *instruction,
void *data)
{
int len;
itable_info *info = data;
lf_print__line_ref (file, instruction->line);
lf_printf (file, " ");
print_function_name (file,
instruction->name,
instruction->format_name,
NULL, NULL, function_name_prefix_itable);
lf_printf (file, ",\n");
/* update summary info */
len = strlen (instruction->format_name);
if (info->sizeof_form <= len)
info->sizeof_form = len + 1;
len = strlen (instruction->name);
if (info->sizeof_name <= len)
info->sizeof_name = len + 1;
len = strlen (filter_filename (instruction->line->file_name));
if (info->sizeof_file <= len)
info->sizeof_file = len + 1;
}
/* print the list of all the different options */
static void
itable_print_enum (lf *file, const filter *set, const char *name)
{
const char *elem;
lf_printf (file, "typedef enum {\n");
lf_indent (file, +2);
for (elem = filter_next (set, "");
elem != NULL; elem = filter_next (set, elem))
{
lf_printf (file, "%sitable_%s_%s,\n",
options.module.itable.prefix.l, name, elem);
if (strlen (options.module.itable.prefix.l) > 0)
{
lf_indent_suppress (file);
lf_printf (file, "#define itable_%s_%s %sitable_%s_%s\n",
name, elem, options.module.itable.prefix.l, name, elem);
}
}
lf_printf (file, "nr_%sitable_%ss,\n", options.module.itable.prefix.l,
name);
lf_indent (file, -2);
lf_printf (file, "} %sitable_%ss;\n", options.module.itable.prefix.l, name);
if (strlen (options.module.itable.prefix.l) > 0)
{
lf_indent_suppress (file);
lf_printf (file, "#define itable_%ss %sitable_%ss\n",
name, options.module.itable.prefix.l, name);
lf_indent_suppress (file);
lf_printf (file, "#define nr_itable_%ss nr_%sitable_%ss\n",
name, options.module.itable.prefix.l, name);
}
}
/* print an array of the option names as strings */
static void
itable_print_names (lf *file, const filter *set, const char *name)
{
const char *elem;
lf_printf (file,
"const char * const %sitable_%s_names[nr_%sitable_%ss + 1] = {\n",
options.module.itable.prefix.l, name,
options.module.itable.prefix.l, name);
lf_indent (file, +2);
for (elem = filter_next (set, "");
elem != NULL; elem = filter_next (set, elem))
{
lf_printf (file, "\"%s\",\n", elem);
}
lf_printf (file, "0,\n");
lf_indent (file, -2);
lf_printf (file, "};\n");
}
extern void
gen_itable_h (lf *file, const insn_table *isa)
{
itable_info *info = ZALLOC (itable_info);
/* output an enumerated type for each instruction */
lf_printf (file, "typedef enum {\n");
insn_table_traverse_insn (file, isa, itable_h_insn, info);
lf_printf (file, " nr_%sitable_entries,\n",
options.module.itable.prefix.l);
lf_printf (file, "} %sitable_index;\n", options.module.itable.prefix.l);
lf_printf (file, "\n");
/* output an enumeration type for each flag */
itable_print_enum (file, isa->flags, "flag");
lf_printf (file, "extern const char * const %sitable_flag_names[];\n",
options.module.itable.prefix.l);
lf_printf (file, "\n");
/* output an enumeration of all the possible options */
itable_print_enum (file, isa->options, "option");
lf_printf (file, "extern const char * const %sitable_option_names[];\n",
options.module.itable.prefix.l);
lf_printf (file, "\n");
/* output an enumeration of all the processor models */
itable_print_enum (file, isa->model->processors, "processor");
lf_printf (file, "extern const char * const %sitable_processor_names[];\n",
options.module.itable.prefix.l);
lf_printf (file, "\n");
/* output the table that contains the actual instruction info */
lf_printf (file, "typedef struct _%sitable_instruction_info {\n",
options.module.itable.prefix.l);
lf_printf (file, " %sitable_index nr;\n", options.module.itable.prefix.l);
lf_printf (file, " const char *format;\n");
lf_printf (file, " const char *form;\n");
lf_printf (file, " const char *flags;\n");
/* nr_itable_* may be zero, so we add 1 to avoid an
illegal zero-sized array. */
lf_printf (file, " const char flag[nr_%sitable_flags + 1];\n",
options.module.itable.prefix.l);
lf_printf (file, " const char *options;\n");
lf_printf (file, " const char option[nr_%sitable_options + 1];\n",
options.module.itable.prefix.l);
lf_printf (file, " const char *processors;\n");
lf_printf (file, " const char processor[nr_%sitable_processors + 1];\n",
options.module.itable.prefix.l);
lf_printf (file, " const char *name;\n");
lf_printf (file, " const char *file;\n");
lf_printf (file, " int line_nr;\n");
lf_printf (file, "} %sitable_info;\n", options.module.itable.prefix.l);
lf_printf (file, "\n");
lf_printf (file,
"extern const %sitable_info %sitable[nr_%sitable_entries];\n",
options.module.itable.prefix.l, options.module.itable.prefix.l,
options.module.itable.prefix.l);
if (strlen (options.module.itable.prefix.l) > 0)
{
lf_indent_suppress (file);
lf_printf (file, "#define itable %sitable\n",
options.module.itable.prefix.l);
}
lf_printf (file, "\n");
/* output an enum defining the max size of various itable members */
lf_printf (file, "enum {\n");
lf_printf (file, " sizeof_%sitable_form = %d,\n",
options.module.itable.prefix.l, info->sizeof_form);
lf_printf (file, " sizeof_%sitable_name = %d,\n",
options.module.itable.prefix.l, info->sizeof_name);
lf_printf (file, " sizeof_%sitable_file = %d,\n",
options.module.itable.prefix.l, info->sizeof_file);
lf_printf (file, "};\n");
}
/****************************************************************/
static void
itable_print_set (lf *file, const filter *set, const filter *members)
{
const char *elem;
lf_printf (file, "\"");
elem = filter_next (members, "");
if (elem != NULL)
{
while (1)
{
lf_printf (file, "%s", elem);
elem = filter_next (members, elem);
if (elem == NULL)
break;
lf_printf (file, ",");
}
}
lf_printf (file, "\",\n");
lf_printf (file, "{");
for (elem = filter_next (set, "");
elem != NULL; elem = filter_next (set, elem))
{
if (filter_is_member (members, elem))
{
lf_printf (file, " 1,");
}
else
{
lf_printf (file, " 0,");
}
}
/* always print a dummy element, to avoid empty initializers. */
lf_printf (file, " 99 },\n");
}
static void
itable_c_insn (lf *file,
const insn_table *isa,
const insn_entry *instruction,
void *data)
{
lf_printf (file, "{ ");
lf_indent (file, +2);
print_function_name (file,
instruction->name,
instruction->format_name,
NULL, NULL, function_name_prefix_itable);
lf_printf (file, ",\n");
lf_printf (file, "\"");
print_insn_words (file, instruction);
lf_printf (file, "\",\n");
lf_printf (file, "\"%s\",\n", instruction->format_name);
itable_print_set (file, isa->flags, instruction->flags);
itable_print_set (file, isa->options, instruction->options);
itable_print_set (file, isa->model->processors, instruction->processors);
lf_printf (file, "\"%s\",\n", instruction->name);
lf_printf (file, "\"%s\",\n",
filter_filename (instruction->line->file_name));
lf_printf (file, "%d,\n", instruction->line->line_nr);
lf_printf (file, "},\n");
lf_indent (file, -2);
}
extern void
gen_itable_c (lf *file, const insn_table *isa)
{
/* leader */
lf_printf (file, "#include \"%sitable.h\"\n",
options.module.itable.prefix.l);
lf_printf (file, "\n");
/* FIXME - output model data??? */
/* FIXME - output assembler data??? */
/* output the flag, option and processor name tables */
itable_print_names (file, isa->flags, "flag");
itable_print_names (file, isa->options, "option");
itable_print_names (file, isa->model->processors, "processor");
/* output the table that contains the actual instruction info */
lf_printf (file, "const %sitable_info %sitable[nr_%sitable_entries] = {\n",
options.module.itable.prefix.l,
options.module.itable.prefix.l, options.module.itable.prefix.l);
insn_table_traverse_insn (file, isa, itable_c_insn, NULL);
lf_printf (file, "};\n");
}
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