1 files changed, 84 insertions, 0 deletions
diff --git a/gcc/params.c b/gcc/params.c
new file mode 100644
index 00000000000..9b1b09ccc42
--- /dev/null
+++ b/gcc/params.c
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+/* params.c - Run-time parameters.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   Written by Mark Mitchell <mark@codesourcery.com>.
+
+This file is part of GNU CC.
+
+GNU CC 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, or (at your option)
+any later version.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  
+
+*/
+
+#include "config.h"
+#include "system.h"
+#include "params.h"
+#include "toplev.h"
+
+/* An array containing the compiler parameters and their current
+   values.  */
+
+param_info *compiler_params;
+
+/* The number of entries in the table.  */
+
+static size_t num_compiler_params;
+
+/* Add the N PARAMS to the current list of compiler parameters.  */
+
+void 
+add_params (params, n)
+     const param_info params[];
+     size_t n;
+{
+  /* Allocate enough space for the new parameters.  */
+  compiler_params = 
+    ((param_info *) 
+     xrealloc (compiler_params,
+	       (num_compiler_params + n) * sizeof (param_info)));
+  /* Copy them into the table.  */
+  memcpy (compiler_params + num_compiler_params,
+	  params,
+	  n * sizeof (param_info));
+  /* Keep track of how many parameters we have.  */
+  num_compiler_params += n;
+}
+
+/* Set the VALUE associated with the parameter given by NAME.  */
+
+void
+set_param_value (name, value)
+     const char *name;
+     int value;
+{
+  size_t i;
+
+  /* Make sure nobody tries to set a parameter to an invalid value.  */
+  if (value == INVALID_PARAM_VAL)
+    abort ();
+
+  /* Scan the parameter table to find a matching entry.  */
+  for (i = 0; i < num_compiler_params; ++i)
+    if (strcmp (compiler_params[i].option, name) == 0)
+      {
+	compiler_params[i].value = value;
+	return;
+      }
+
+  /* If we didn't find this parameter, issue an error message.  */
+  error ("invalid parameter `%s'", name);
+}
+
+     
+