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[/] [or1k/] [trunk/] [gdb-5.3/] [sim/] [igen/] [gen-itable.c] - Rev 1181
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/* The IGEN simulator generator for GDB, the GNU Debugger. Copyright 2002 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 2 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, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #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" #ifndef NULL #define NULL 0 #endif typedef struct _itable_info { int sizeof_form; int sizeof_name; int sizeof_file; } itable_info; static void itable_h_insn (lf *file, insn_table *entry, 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, filter *set, char *name) { 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, filter *set, char *name) { char *elem; lf_printf (file, "const char *%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, 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 *%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 *%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 *%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, " char *format;\n"); lf_printf (file, " char *form;\n"); lf_printf (file, " char *flags;\n"); /* nr_itable_* may be zero, so we add 1 to avoid an illegal zero-sized array. */ lf_printf (file, " char flag[nr_%sitable_flags + 1];\n", options.module.itable.prefix.l); lf_printf (file, " char *options;\n"); lf_printf (file, " char option[nr_%sitable_options + 1];\n", options.module.itable.prefix.l); lf_printf (file, " char *processors;\n"); lf_printf (file, " char processor[nr_%sitable_processors + 1];\n", options.module.itable.prefix.l); lf_printf (file, " char *name;\n"); lf_printf (file, " 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 %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, filter *set, filter *members) { 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, insn_table *isa, 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, 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, "%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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