213 lines
6.4 KiB
C
213 lines
6.4 KiB
C
/* The IGEN simulator generator for GDB, the GNU Debugger.
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Copyright 2002-2022 Free Software Foundation, Inc.
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Contributed by Andrew Cagney.
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This file is part of GDB.
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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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#include "misc.h"
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#include "lf.h"
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#include "table.h"
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#include "filter.h"
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#include "igen.h"
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#include "ld-insn.h"
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#include "ld-decode.h"
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#include "gen.h"
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#include "gen-semantics.h"
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#include "gen-support.h"
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static void
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print_support_function_name (lf *file,
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function_entry * function,
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int is_function_definition)
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{
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if (function->is_internal)
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{
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lf_print__function_type_function (file, print_semantic_function_type,
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"INLINE_SUPPORT",
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(is_function_definition ? "\n" :
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" "));
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print_function_name (file, function->name, NULL, NULL, NULL,
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function_name_prefix_semantics);
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lf_printf (file, "\n(");
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lf_indent (file, +1);
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print_semantic_function_formal (file, 0);
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lf_indent (file, -1);
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lf_printf (file, ")");
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if (!is_function_definition)
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lf_printf (file, ";");
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lf_printf (file, "\n");
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}
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else
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{
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/* map the name onto a globally valid name */
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if (!is_function_definition
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&& strcmp (options.module.support.prefix.l, "") != 0)
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{
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lf_indent_suppress (file);
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lf_printf (file, "#define %s %s%s\n",
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function->name,
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options.module.support.prefix.l, function->name);
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}
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lf_print__function_type (file,
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function->type,
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"INLINE_SUPPORT",
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(is_function_definition ? "\n" : " "));
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lf_printf (file, "%s%s\n(",
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options.module.support.prefix.l, function->name);
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if (options.gen.smp)
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lf_printf (file,
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"sim_cpu *cpu, %sinstruction_address cia, int MY_INDEX",
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options.module.support.prefix.l);
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else
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lf_printf (file,
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"SIM_DESC sd, %sinstruction_address cia, int MY_INDEX",
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options.module.support.prefix.l);
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if (function->param != NULL && strlen (function->param) > 0)
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lf_printf (file, ", %s", function->param);
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lf_printf (file, ")%s", (is_function_definition ? "\n" : ";\n"));
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}
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}
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static void
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support_h_function (lf *file, function_entry * function, void *data)
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{
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ASSERT (function->type != NULL);
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print_support_function_name (file, function, 0 /*!is_definition */ );
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lf_printf (file, "\n");
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}
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extern void
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gen_support_h (lf *file, insn_table *table)
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{
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/* output the definition of `SD_' */
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if (options.gen.smp)
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{
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lf_printf (file, "#define SD CPU_STATE (cpu)\n");
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lf_printf (file, "#define CPU cpu\n");
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lf_printf (file, "#define CPU_ cpu\n");
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}
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else
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{
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lf_printf (file, "#define SD sd\n");
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lf_printf (file, "#define CPU (STATE_CPU (sd, 0))\n");
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lf_printf (file, "#define CPU_ sd\n");
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}
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lf_printf (file, "#define CIA_ cia\n");
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if (options.gen.delayed_branch)
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{
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lf_printf (file, "#define CIA cia.ip\n");
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lf_printf (file,
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"/* #define NIA nia.dp -- do not define, ambigious */\n");
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}
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else
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{
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lf_printf (file, "#define CIA cia\n");
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lf_printf (file, "#define NIA nia\n");
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}
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lf_printf (file, "\n");
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lf_printf (file, "#define SD_ CPU_, CIA_, MY_INDEX\n");
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lf_printf (file, "#define _SD SD_ /* deprecated */\n");
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lf_printf (file, "\n");
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/* Map <PREFIX>_xxxx onto the shorter xxxx for the following names:
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instruction_word
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idecode_issue
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semantic_illegal
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Map defined here as name space problems are created when the name is
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defined in idecode.h */
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if (strcmp (options.module.idecode.prefix.l, "") != 0)
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{
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lf_indent_suppress (file);
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lf_printf (file, "#define %s %s%s\n",
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"instruction_word",
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options.module.idecode.prefix.l, "instruction_word");
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lf_printf (file, "\n");
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lf_indent_suppress (file);
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lf_printf (file, "#define %s %s%s\n",
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"idecode_issue",
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options.module.idecode.prefix.l, "idecode_issue");
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lf_printf (file, "\n");
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lf_indent_suppress (file);
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lf_printf (file, "#define %s %s%s\n",
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"semantic_illegal",
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options.module.idecode.prefix.l, "semantic_illegal");
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lf_printf (file, "\n");
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}
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/* output a declaration for all functions */
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function_entry_traverse (file, table->functions, support_h_function, NULL);
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lf_printf (file, "\n");
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lf_printf (file, "#if defined(SUPPORT_INLINE)\n");
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lf_printf (file, "# if ((SUPPORT_INLINE & INCLUDE_MODULE)\\\n");
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lf_printf (file, " && (SUPPORT_INLINE & INCLUDED_BY_MODULE))\n");
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lf_printf (file, "# include \"%ssupport.c\"\n",
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options.module.support.prefix.l);
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lf_printf (file, "# endif\n");
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lf_printf (file, "#endif\n");
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}
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static void
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support_c_function (lf *file, function_entry * function, void *data)
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{
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ASSERT (function->type != NULL);
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print_support_function_name (file, function, 1 /*!is_definition */ );
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lf_printf (file, "{\n");
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lf_indent (file, +2);
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if (function->code == NULL)
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error (function->line, "Function without body (or null statement)");
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lf_print__line_ref (file, function->code->line);
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table_print_code (file, function->code);
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if (function->is_internal)
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{
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lf_printf (file,
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"sim_engine_abort (SD, CPU, cia, \"Internal function must longjump\\n\");\n");
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lf_printf (file, "return cia;\n");
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}
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lf_indent (file, -2);
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lf_printf (file, "}\n");
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lf_print__internal_ref (file);
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lf_printf (file, "\n");
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}
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void
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gen_support_c (lf *file, insn_table *table)
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{
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lf_printf (file, "#include \"sim-main.h\"\n");
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lf_printf (file, "#include \"%sidecode.h\"\n",
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options.module.idecode.prefix.l);
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lf_printf (file, "#include \"%sitable.h\"\n",
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options.module.itable.prefix.l);
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lf_printf (file, "#include \"%ssupport.h\"\n",
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options.module.support.prefix.l);
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lf_printf (file, "\n");
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/* output a definition (c-code) for all functions */
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function_entry_traverse (file, table->functions, support_c_function, NULL);
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}
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