1 /* The IGEN simulator generator for GDB, the GNU Debugger. 2 3 Copyright 2002-2024 Free Software Foundation, Inc. 4 5 Contributed by Andrew Cagney. 6 7 This file is part of GDB. 8 9 This program is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3 of the License, or 12 (at your option) any later version. 13 14 This program is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 21 22 23 #include "misc.h" 24 #include "lf.h" 25 #include "table.h" 26 #include "filter.h" 27 28 #include "igen.h" 29 30 #include "ld-insn.h" 31 #include "ld-decode.h" 32 33 #include "gen.h" 34 35 #include "gen-semantics.h" 36 #include "gen-support.h" 37 38 static void 39 print_support_function_name (lf *file, 40 const function_entry *function, 41 int is_function_definition) 42 { 43 if (function->is_internal) 44 { 45 lf_print__function_type_function (file, print_semantic_function_type, 46 "INLINE_SUPPORT", 47 (is_function_definition ? "\n" : 48 " ")); 49 print_function_name (file, function->name, NULL, NULL, NULL, 50 function_name_prefix_semantics); 51 lf_printf (file, "\n("); 52 lf_indent (file, +1); 53 print_semantic_function_formal (file, 0); 54 lf_indent (file, -1); 55 lf_printf (file, ")"); 56 if (!is_function_definition) 57 lf_printf (file, ";"); 58 lf_printf (file, "\n"); 59 } 60 else 61 { 62 /* map the name onto a globally valid name */ 63 if (!is_function_definition 64 && strcmp (options.module.support.prefix.l, "") != 0) 65 { 66 lf_indent_suppress (file); 67 lf_printf (file, "#define %s %s%s\n", 68 function->name, 69 options.module.support.prefix.l, function->name); 70 } 71 lf_print__function_type (file, 72 function->type, 73 "INLINE_SUPPORT", 74 (is_function_definition ? "\n" : " ")); 75 lf_printf (file, "%s%s\n(", 76 options.module.support.prefix.l, function->name); 77 if (options.gen.smp) 78 lf_printf (file, 79 "sim_cpu *cpu, %sinstruction_address cia, int MY_INDEX", 80 options.module.support.prefix.l); 81 else 82 lf_printf (file, 83 "SIM_DESC sd, %sinstruction_address cia, int MY_INDEX", 84 options.module.support.prefix.l); 85 if (function->param != NULL && strlen (function->param) > 0) 86 lf_printf (file, ", %s", function->param); 87 lf_printf (file, ")%s", (is_function_definition ? "\n" : ";\n")); 88 } 89 } 90 91 92 static void 93 support_h_function (lf *file, const function_entry *function, void *data) 94 { 95 ASSERT (function->type != NULL); 96 print_support_function_name (file, function, 0 /*!is_definition */ ); 97 lf_printf (file, "\n"); 98 } 99 100 101 extern void 102 gen_support_h (lf *file, const insn_table *table) 103 { 104 /* output the definition of `SD_' */ 105 if (options.gen.smp) 106 { 107 lf_printf (file, "#define SD CPU_STATE (cpu)\n"); 108 lf_printf (file, "#define CPU cpu\n"); 109 lf_printf (file, "#define CPU_ cpu\n"); 110 } 111 else 112 { 113 lf_printf (file, "#define SD sd\n"); 114 lf_printf (file, "#define CPU (STATE_CPU (sd, 0))\n"); 115 lf_printf (file, "#define CPU_ sd\n"); 116 } 117 118 lf_printf (file, "#define CIA_ cia\n"); 119 if (options.gen.delayed_branch) 120 { 121 lf_printf (file, "#define CIA cia.ip\n"); 122 lf_printf (file, 123 "/* #define NIA nia.dp -- do not define, ambigious */\n"); 124 } 125 else 126 { 127 lf_printf (file, "#define CIA cia\n"); 128 lf_printf (file, "#define NIA nia\n"); 129 } 130 lf_printf (file, "\n"); 131 132 lf_printf (file, "#define SD_ CPU_, CIA_, MY_INDEX\n"); 133 lf_printf (file, "#define _SD SD_ /* deprecated */\n"); 134 lf_printf (file, "\n"); 135 136 /* Map <PREFIX>_xxxx onto the shorter xxxx for the following names: 137 138 instruction_word 139 idecode_issue 140 semantic_illegal 141 142 Map defined here as name space problems are created when the name is 143 defined in idecode.h */ 144 if (strcmp (options.module.idecode.prefix.l, "") != 0) 145 { 146 lf_indent_suppress (file); 147 lf_printf (file, "#define %s %s%s\n", 148 "instruction_word", 149 options.module.idecode.prefix.l, "instruction_word"); 150 lf_printf (file, "\n"); 151 lf_indent_suppress (file); 152 lf_printf (file, "#define %s %s%s\n", 153 "idecode_issue", 154 options.module.idecode.prefix.l, "idecode_issue"); 155 lf_printf (file, "\n"); 156 lf_indent_suppress (file); 157 lf_printf (file, "#define %s %s%s\n", 158 "semantic_illegal", 159 options.module.idecode.prefix.l, "semantic_illegal"); 160 lf_printf (file, "\n"); 161 } 162 163 /* output a declaration for all functions */ 164 function_entry_traverse (file, table->functions, support_h_function, NULL); 165 lf_printf (file, "\n"); 166 lf_printf (file, "#if defined(SUPPORT_INLINE)\n"); 167 lf_printf (file, "# if ((SUPPORT_INLINE & INCLUDE_MODULE)\\\n"); 168 lf_printf (file, " && (SUPPORT_INLINE & INCLUDED_BY_MODULE))\n"); 169 lf_printf (file, "# include \"%ssupport.c\"\n", 170 options.module.support.prefix.l); 171 lf_printf (file, "# endif\n"); 172 lf_printf (file, "#endif\n"); 173 } 174 175 static void 176 support_c_function (lf *file, const function_entry *function, void *data) 177 { 178 ASSERT (function->type != NULL); 179 print_support_function_name (file, function, 1 /*!is_definition */ ); 180 lf_printf (file, "{\n"); 181 lf_indent (file, +2); 182 if (function->code == NULL) 183 error (function->line, "Function without body (or null statement)\n"); 184 lf_print__line_ref (file, function->code->line); 185 table_print_code (file, function->code); 186 if (function->is_internal) 187 { 188 lf_printf (file, 189 "sim_engine_abort (SD, CPU, cia, \"Internal function must longjump\\n\");\n"); 190 lf_printf (file, "return cia;\n"); 191 } 192 lf_indent (file, -2); 193 lf_printf (file, "}\n"); 194 lf_print__internal_ref (file); 195 lf_printf (file, "\n"); 196 } 197 198 199 void 200 gen_support_c (lf *file, const insn_table *table) 201 { 202 lf_printf (file, "#include \"sim-main.h\"\n"); 203 lf_printf (file, "#include \"%sidecode.h\"\n", 204 options.module.idecode.prefix.l); 205 lf_printf (file, "#include \"%sitable.h\"\n", 206 options.module.itable.prefix.l); 207 lf_printf (file, "#include \"%ssupport.h\"\n", 208 options.module.support.prefix.l); 209 lf_printf (file, "\n"); 210 211 /* output a definition (c-code) for all functions */ 212 function_entry_traverse (file, table->functions, support_c_function, NULL); 213 } 214
Indexes created Sat Feb 28 05:31:39 UTC 2026