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/* The IGEN simulator generator for GDB, the GNU Debugger.
Copyright 2002-2021 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-semantics.h"
#include "gen-support.h"
static void
print_support_function_name (lf *file,
function_entry * function,
int is_function_definition)
{
if (function->is_internal)
{
lf_print__function_type_function (file, print_semantic_function_type,
"INLINE_SUPPORT",
(is_function_definition ? "\n" :
" "));
print_function_name (file, function->name, NULL, NULL, NULL,
function_name_prefix_semantics);
lf_printf (file, "\n(");
lf_indent (file, +1);
print_semantic_function_formal (file, 0);
lf_indent (file, -1);
lf_printf (file, ")");
if (!is_function_definition)
lf_printf (file, ";");
lf_printf (file, "\n");
}
else
{
/* map the name onto a globally valid name */
if (!is_function_definition
&& strcmp (options.module.support.prefix.l, "") != 0)
{
lf_indent_suppress (file);
lf_printf (file, "#define %s %s%s\n",
function->name,
options.module.support.prefix.l, function->name);
}
lf_print__function_type (file,
function->type,
"INLINE_SUPPORT",
(is_function_definition ? "\n" : " "));
lf_printf (file, "%s%s\n(",
options.module.support.prefix.l, function->name);
if (options.gen.smp)
lf_printf (file,
"sim_cpu *cpu, %sinstruction_address cia, int MY_INDEX",
options.module.support.prefix.l);
else
lf_printf (file,
"SIM_DESC sd, %sinstruction_address cia, int MY_INDEX",
options.module.support.prefix.l);
if (function->param != NULL && strlen (function->param) > 0)
lf_printf (file, ", %s", function->param);
lf_printf (file, ")%s", (is_function_definition ? "\n" : ";\n"));
}
}
static void
support_h_function (lf *file, function_entry * function, void *data)
{
ASSERT (function->type != NULL);
print_support_function_name (file, function, 0 /*!is_definition */ );
lf_printf (file, "\n");
}
extern void
gen_support_h (lf *file, insn_table *table)
{
/* output the definition of `SD_' */
if (options.gen.smp)
{
lf_printf (file, "#define SD CPU_STATE (cpu)\n");
lf_printf (file, "#define CPU cpu\n");
lf_printf (file, "#define CPU_ cpu\n");
}
else
{
lf_printf (file, "#define SD sd\n");
lf_printf (file, "#define CPU (STATE_CPU (sd, 0))\n");
lf_printf (file, "#define CPU_ sd\n");
}
lf_printf (file, "#define CIA_ cia\n");
if (options.gen.delayed_branch)
{
lf_printf (file, "#define CIA cia.ip\n");
lf_printf (file,
"/* #define NIA nia.dp -- do not define, ambigious */\n");
}
else
{
lf_printf (file, "#define CIA cia\n");
lf_printf (file, "#define NIA nia\n");
}
lf_printf (file, "\n");
lf_printf (file, "#define SD_ CPU_, CIA_, MY_INDEX\n");
lf_printf (file, "#define _SD SD_ /* deprecated */\n");
lf_printf (file, "\n");
/* Map <PREFIX>_xxxx onto the shorter xxxx for the following names:
instruction_word
idecode_issue
semantic_illegal
Map defined here as name space problems are created when the name is
defined in idecode.h */
if (strcmp (options.module.idecode.prefix.l, "") != 0)
{
lf_indent_suppress (file);
lf_printf (file, "#define %s %s%s\n",
"instruction_word",
options.module.idecode.prefix.l, "instruction_word");
lf_printf (file, "\n");
lf_indent_suppress (file);
lf_printf (file, "#define %s %s%s\n",
"idecode_issue",
options.module.idecode.prefix.l, "idecode_issue");
lf_printf (file, "\n");
lf_indent_suppress (file);
lf_printf (file, "#define %s %s%s\n",
"semantic_illegal",
options.module.idecode.prefix.l, "semantic_illegal");
lf_printf (file, "\n");
}
/* output a declaration for all functions */
function_entry_traverse (file, table->functions, support_h_function, NULL);
lf_printf (file, "\n");
lf_printf (file, "#if defined(SUPPORT_INLINE)\n");
lf_printf (file, "# if ((SUPPORT_INLINE & INCLUDE_MODULE)\\\n");
lf_printf (file, " && (SUPPORT_INLINE & INCLUDED_BY_MODULE))\n");
lf_printf (file, "# include \"%ssupport.c\"\n",
options.module.support.prefix.l);
lf_printf (file, "# endif\n");
lf_printf (file, "#endif\n");
}
static void
support_c_function (lf *file, function_entry * function, void *data)
{
ASSERT (function->type != NULL);
print_support_function_name (file, function, 1 /*!is_definition */ );
lf_printf (file, "{\n");
lf_indent (file, +2);
if (function->code == NULL)
error (function->line, "Function without body (or null statement)");
lf_print__line_ref (file, function->code->line);
table_print_code (file, function->code);
if (function->is_internal)
{
lf_printf (file,
"sim_engine_abort (SD, CPU, cia, \"Internal function must longjump\\n\");\n");
lf_printf (file, "return cia;\n");
}
lf_indent (file, -2);
lf_printf (file, "}\n");
lf_print__internal_ref (file);
lf_printf (file, "\n");
}
void
gen_support_c (lf *file, insn_table *table)
{
lf_printf (file, "#include \"sim-main.h\"\n");
lf_printf (file, "#include \"%sidecode.h\"\n",
options.module.idecode.prefix.l);
lf_printf (file, "#include \"%sitable.h\"\n",
options.module.itable.prefix.l);
lf_printf (file, "#include \"%ssupport.h\"\n",
options.module.support.prefix.l);
lf_printf (file, "\n");
/* output a definition (c-code) for all functions */
function_entry_traverse (file, table->functions, support_c_function, NULL);
}
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