Let GDB reuse GCC's parser.

2014-10-27  Phil Muldoon  <pmuldoon@redhat.com>
	    Jan Kratochvil  <jan.kratochvil@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* aclocal.m4: New file.
	* callbacks.cc: New file.
	* callbacks.hh: New file.
	* cc1plugin-config.h.in: New file.
	* configure: New file.
	* configure.ac: New file.
	* connection.cc: New file.
	* connection.hh: New file.
	* findcomp.cc: New file.
	* findcomp.hh: New file.
	* libcc1.cc: New file.
	* libcc1plugin.sym: New file.
	* libcc1.sym: New file.
	* Makefile.am: New file.
	* Makefile.in: New file.
	* marshall.cc: New file.
	* marshall.hh: New file.
	* names.cc: New file.
	* names.hh: New file.
	* plugin.cc: New file.
	* rpc.hh: New file.
	* status.hh: New file.

2014-10-27  Phil Muldoon  <pmuldoon@redhat.com>
	    Jan Kratochvil  <jan.kratochvil@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* gcc-c-fe.def: New file.
	* gcc-c-interface.h: New file.
	* gcc-interface.h: New file.

2014-10-27  Phil Muldoon  <pmuldoon@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* c-tree.h (enum c_oracle_request): New.
	(c_binding_oracle_function): New typedef.
	(c_binding_oracle, c_pushtag, c_bind): Declare.
	* c-decl.c (c_binding_oracle): New global.
	(I_SYMBOL_CHECKED): New macro.
	(i_symbol_binding): New function.
	(I_SYMBOL_BINDING, I_SYMBOL_DECL): Redefine.
	(I_TAG_CHECKED): New macro.
	(i_tag_binding): New function.
	(I_TAG_BINDING, I_TAG_DECL): Redefine.
	(I_LABEL_CHECKED): New macro.
	(i_label_binding): New function.
	(I_LABEL_BINDING, I_LABEL_DECL): Redefine.
	(c_print_identifier): Save and restore c_binding_oracle.
	(c_pushtag, c_bind): New functions.

2014-10-27  Phil Muldoon  <pmuldoon@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* aclocal.m4, configure: Rebuild.
	* Makefile.in (aclocal_deps): Add gcc-plugin.m4.
	* configure.ac: Use GCC_ENABLE_PLUGINS.
	* stor-layout.c (finish_bitfield_layout): Now public.  Change
	argument type to 'tree'.
	(finish_record_layout): Update.
	* stor-layout.h (finish_bitfield_layout): Declare.

2014-10-27  Tom Tromey  <tromey@redhat.com>

	* gcc-plugin.m4: New file.

2014-10-27  Phil Muldoon  <pmuldoon@redhat.com>
	    Tom Tromey  <tromey@redhat.com>

	* Makefile.def: Add libcc1 to host_modules.
	* configure.ac (host_tools): Add libcc1.
	* Makefile.in, configure: Rebuild.

From-SVN: r216748

1 files changed, 90 insertions, 0 deletions

diff --git a/libcc1/callbacks.cc b/libcc1/callbacks.cc
new file mode 100644
index 00000000000..3c4eda67ad0
--- /dev/null
+++ b/libcc1/callbacks.cc
@@ -0,0 +1,90 @@
+/* Callback management.
+   Copyright (C) 2014 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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 3, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include <cc1plugin-config.h>
+#include <string.h>
+#include <stdlib.h>
+#include "callbacks.hh"
+#include "libiberty.h"
+
+// An entry in the hash table.
+struct method
+{
+  const char *name;
+  cc1_plugin::callback_ftype *func;
+};
+
+// Hash function for struct method.
+static hashval_t
+hash_method (const void *a)
+{
+  const struct method *m = (const struct method *) a;
+
+  return htab_hash_string (m->name);
+}
+
+// Equality function for struct method.
+static int
+eq_method (const void *a, const void *b)
+{
+  const struct method *ma = (const struct method *) a;
+  const struct method *mb = (const struct method *) b;
+
+  return strcmp (ma->name, mb->name) == 0;
+}
+
+cc1_plugin::callbacks::callbacks ()
+  : m_registry (htab_create_alloc (10, hash_method, eq_method,
+				   free, xcalloc, free))
+{
+}
+
+cc1_plugin::callbacks::~callbacks ()
+{
+  htab_delete (m_registry);
+}
+
+void
+cc1_plugin::callbacks::add_callback (const char *name,
+				     cc1_plugin::callback_ftype *func)
+{
+  method m;
+  method **slot;
+
+  m.name = name;
+  m.func = func;
+
+  slot = (method **) htab_find_slot (m_registry, &m, INSERT);
+  *slot = XNEW (method);
+  **slot = m;
+}
+
+cc1_plugin::callback_ftype *
+cc1_plugin::callbacks::find_callback (const char *name)
+{
+  method m, *found;
+
+  m.name = name;
+
+  found = (method *) htab_find (m_registry, &m);
+  if (found == NULL)
+    return NULL;
+
+  return found->func;
+}