Initial creation of sourceware repositorygdb-4_18-branchpoint

1 files changed, 336 insertions, 0 deletions

diff --git a/sim/ppc/dgen.c b/sim/ppc/dgen.c
new file mode 100644
index 0000000..54e0e26
--- /dev/null
+++ b/sim/ppc/dgen.c
@@ -0,0 +1,336 @@
+/*  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 <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <stdarg.h>
+
+#include "config.h"
+#include "misc.h"
+#include "lf.h"
+#include "table.h"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+
+/****************************************************************/
+
+int spreg_lookup_table = 1;
+enum {
+  nr_of_sprs = 1024,
+};
+
+/****************************************************************/
+
+
+typedef enum {
+  spreg_name,
+  spreg_reg_nr,
+  spreg_readonly,
+  spreg_length,
+  nr_spreg_fields,
+} spreg_fields;
+
+typedef struct _spreg_table_entry spreg_table_entry;
+struct _spreg_table_entry {
+  char *name;
+  int spreg_nr;
+  int is_readonly;
+  int length;
+  table_entry *entry;
+  spreg_table_entry *next;
+};
+
+typedef struct _spreg_table spreg_table;
+struct _spreg_table {
+  spreg_table_entry *sprs;
+};
+
+static void
+spreg_table_insert(spreg_table *table, table_entry *entry)
+{
+  /* create a new spr entry */
+  spreg_table_entry *new_spr = ZALLOC(spreg_table_entry);
+  new_spr->next = NULL;
+  new_spr->entry = entry;
+  new_spr->spreg_nr = atoi(entry->fields[spreg_reg_nr]);
+  new_spr->is_readonly = (entry->fields[spreg_readonly]
+			  ? atoi(entry->fields[spreg_readonly])
+			  : 0);
+  new_spr->length = atoi(entry->fields[spreg_length]);
+  new_spr->name = (char*)zalloc(strlen(entry->fields[spreg_name]) + 1);
+  ASSERT(new_spr->name != NULL);
+  {
+    int i;
+    for (i = 0; entry->fields[spreg_name][i] != '\0'; i++) {
+      if (isupper(entry->fields[spreg_name][i]))
+	new_spr->name[i] = tolower(entry->fields[spreg_name][i]);
+      else
+	new_spr->name[i] = entry->fields[spreg_name][i];
+    }
+  }
+
+  /* insert, by spreg_nr order */
+  {
+    spreg_table_entry **ptr_to_spreg_entry = &table->sprs;
+    spreg_table_entry *spreg_entry = *ptr_to_spreg_entry;
+    while (spreg_entry != NULL && spreg_entry->spreg_nr < new_spr->spreg_nr) {
+      ptr_to_spreg_entry = &spreg_entry->next;
+      spreg_entry = *ptr_to_spreg_entry;
+    }
+    ASSERT(spreg_entry == NULL || spreg_entry->spreg_nr != new_spr->spreg_nr);
+    *ptr_to_spreg_entry = new_spr;
+    new_spr->next = spreg_entry;
+  }
+
+}
+
+
+static spreg_table *
+spreg_table_load(char *file_name)
+{
+  table *file = table_open(file_name, nr_spreg_fields, 0);
+  spreg_table *table = ZALLOC(spreg_table);
+
+  {
+    table_entry *entry;
+    while ((entry = table_entry_read(file)) != NULL) {
+      spreg_table_insert(table, entry);
+    }
+  }
+
+  return table;
+}
+
+
+/****************************************************************/
+
+char *spreg_attributes[] = {
+  "is_valid",
+  "is_readonly",
+  "name",
+  "index",
+  "length",
+  0
+};
+
+static void
+gen_spreg_h(spreg_table *table, lf *file)
+{
+  spreg_table_entry *entry;
+  char **attribute;
+
+  lf_print__gnu_copyleft(file);
+  lf_printf(file, "\n");
+  lf_printf(file, "#ifndef _SPREG_H_\n");
+  lf_printf(file, "#define _SPREG_H_\n");
+  lf_printf(file, "\n");
+  lf_printf(file, "typedef unsigned_word spreg;\n");
+  lf_printf(file, "\n");
+  lf_printf(file, "typedef enum {\n");
+
+  for (entry = table->sprs;
+       entry != NULL ;
+       entry = entry->next) {
+    lf_printf(file, "  spr_%s = %d,\n", entry->name, entry->spreg_nr);
+  }
+
+  lf_printf(file, "  nr_of_sprs = %d\n", nr_of_sprs);
+  lf_printf(file, "} sprs;\n");
+  lf_printf(file, "\n");
+  for (attribute = spreg_attributes;
+       *attribute != NULL;
+       attribute++) {
+    if (strcmp(*attribute, "name") == 0) {
+      lf_print_function_type(file, "const char *", "INLINE_SPREG", " ");
+      lf_printf(file, "spr_%s(sprs spr);\n", *attribute);
+    }
+    else {
+      lf_print_function_type(file, "int", "INLINE_SPREG", " ");
+      lf_printf(file, "spr_%s(sprs spr);\n", *attribute);
+    }
+  }
+  lf_printf(file, "\n");
+  lf_printf(file, "#endif /* _SPREG_H_ */\n");
+}
+
+
+static void
+gen_spreg_c(spreg_table *table, lf *file)
+{
+  spreg_table_entry *entry;
+  char **attribute;
+  int spreg_nr;
+
+  lf_print__gnu_copyleft(file);
+  lf_printf(file, "\n");
+  lf_printf(file, "#ifndef _SPREG_C_\n");
+  lf_printf(file, "#define _SPREG_C_\n");
+  lf_printf(file, "\n");
+  lf_printf(file, "#include \"basics.h\"\n");
+  lf_printf(file, "#include \"spreg.h\"\n");
+
+  lf_printf(file, "\n");
+  lf_printf(file, "typedef struct _spreg_info {\n");
+  lf_printf(file, "  char *name;\n");
+  lf_printf(file, "  int is_valid;\n");
+  lf_printf(file, "  int length;\n");
+  lf_printf(file, "  int is_readonly;\n");
+  lf_printf(file, "  int index;\n");
+  lf_printf(file, "} spreg_info;\n");
+  lf_printf(file, "\n");
+  lf_printf(file, "static spreg_info spr_info[nr_of_sprs+1] = {\n");
+  entry = table->sprs;
+  for (spreg_nr = 0; spreg_nr < nr_of_sprs+1; spreg_nr++) {
+    if (entry == NULL || spreg_nr < entry->spreg_nr)
+      lf_printf(file, "  { 0, 0, 0, 0, %d},\n", spreg_nr);
+    else {
+      lf_printf(file, "  { \"%s\", %d, %d, %d, spr_%s /*%d*/ },\n",
+		entry->name, 1, entry->length, entry->is_readonly,
+		entry->name, entry->spreg_nr);
+      entry = entry->next;
+    }
+  }
+  lf_printf(file, "};\n");
+
+  for (attribute = spreg_attributes;
+       *attribute != NULL;
+       attribute++) {
+    lf_printf(file, "\n");
+    if (strcmp(*attribute, "name") == 0) {
+      lf_print_function_type(file, "const char *", "INLINE_SPREG", "\n");
+    }
+    else {
+      lf_print_function_type(file, "int", "INLINE_SPREG", "\n");
+    }
+    lf_printf(file, "spr_%s(sprs spr)\n", *attribute);
+    lf_printf(file, "{\n");
+    if (spreg_lookup_table
+	|| strcmp(*attribute, "name") == 0
+	|| strcmp(*attribute, "index") == 0)
+      lf_printf(file, "  return spr_info[spr].%s;\n",
+		*attribute);
+    else {
+      spreg_table_entry *entry;
+      lf_printf(file, "  switch (spr) {\n");
+      for (entry = table->sprs; entry != NULL; entry = entry->next) {
+	lf_printf(file, "  case %d:\n", entry->spreg_nr);
+	if (strcmp(*attribute, "is_valid") == 0)
+	  lf_printf(file, "    return 1;\n");
+	else if (strcmp(*attribute, "is_readonly") == 0)
+	  lf_printf(file, "    return %d;\n", entry->is_readonly);
+	else if (strcmp(*attribute, "length") == 0)
+	  lf_printf(file, "    return %d;\n", entry->length);
+	else
+	  ASSERT(0);
+      }
+      lf_printf(file, "  default:\n");
+      lf_printf(file, "    return 0;\n");
+      lf_printf(file, "  }\n");
+    }
+    lf_printf(file, "}\n");
+  }
+
+  lf_printf(file, "\n");
+  lf_printf(file, "#endif /* _SPREG_C_ */\n");
+}
+
+
+
+/****************************************************************/
+
+
+int
+main(int argc,
+     char **argv,
+     char **envp)
+{
+  lf_file_references file_references = lf_include_references;
+  spreg_table *sprs = NULL;
+  char *real_file_name = NULL;
+  int is_header = 0;
+  int ch;
+
+  if (argc <= 1) {
+    printf("Usage: dgen ...\n");
+    printf("-s  Use switch instead of table\n");
+    printf("-n <file-name>  Use this as cpp line numbering name\n");
+    printf("-h  Output header file\n");
+    printf("-p <spreg-file>  Output spreg.h(P) or spreg.c(p)\n");
+    printf("-L  Suppress cpp line numbering in output files\n");
+  }
+
+
+  while ((ch = getopt(argc, argv, "hLsn:r:p:")) != -1) {
+    fprintf(stderr, "\t-%c %s\n", ch, ( optarg ? optarg : ""));
+    switch(ch) {
+    case 's':
+      spreg_lookup_table = 0;
+      break;
+    case 'r':
+      sprs = spreg_table_load(optarg);
+      break;
+    case 'n':
+      real_file_name = strdup(optarg);
+      break;
+    case 'L':
+      file_references = lf_omit_references;
+      break;
+    case 'h':
+      is_header = 1;
+      break;
+    case 'p':
+      {
+	lf *file = lf_open(optarg, real_file_name, file_references,
+			   (is_header ? lf_is_h : lf_is_c),
+			   argv[0]);
+	if (is_header)
+	  gen_spreg_h(sprs, file);
+	else
+	  gen_spreg_c(sprs, file);
+	lf_close(file);
+	is_header = 0;
+      }
+      real_file_name = NULL;
+      break;
+    default:
+      error("unknown option\n");
+    }
+  }
+  return 0;
+}