Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 317 insertions, 0 deletions

diff --git a/sim/igen/gen-itable.c b/sim/igen/gen-itable.c
new file mode 100644
index 0000000..c3e9053
--- /dev/null
+++ b/sim/igen/gen-itable.c
@@ -0,0 +1,317 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+    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");
+}