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, 114 insertions, 0 deletions

diff --git a/libcc1/connection.hh b/libcc1/connection.hh
new file mode 100644
index 00000000000..242deec311d
--- /dev/null
+++ b/libcc1/connection.hh
@@ -0,0 +1,114 @@
+/* Plugin connection declarations
+   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/>.  */
+
+#ifndef CC1_PLUGIN_CONNECTION_HH
+#define CC1_PLUGIN_CONNECTION_HH
+
+#include "status.hh"
+#include "callbacks.hh"
+
+namespace cc1_plugin
+{
+  // The connection class represents one side of the connection
+  // between the gdb-side library and the gcc plugin.  It handles the
+  // low-level details of reading and writing data.
+  class connection
+  {
+  public:
+
+    connection (int fd)
+      : m_fd (fd),
+	m_aux_fd (-1),
+	m_callbacks ()
+    {
+    }
+
+    connection (int fd, int aux_fd)
+      : m_fd (fd),
+	m_aux_fd (aux_fd),
+	m_callbacks ()
+    {
+    }
+
+    virtual ~connection ();
+
+    // Send a single character.  This is used to introduce various
+    // higher-level protocol elements.
+    status send (char c);
+
+    // Send data in bulk.
+    status send (const void *buf, int len);
+
+    // Read a single byte from the connection and verify that it
+    // matches the argument C.
+    status require (char c);
+
+    // Read data in bulk.
+    status get (void *buf, int len);
+
+    // This is called after a query (remote function call) has been
+    // sent to the remote.  It waits for a response packet.  The
+    // response character is read before returning.  Any query packets
+    // sent from the remote while waiting for a response are handled
+    // by this function.
+    status wait_for_result ()
+    {
+      return do_wait (true);
+    }
+
+    // Read and respond to query packets sent by the remote.  This
+    // function returns when the connection is closed.
+    status wait_for_query ()
+    {
+      return do_wait (false);
+    }
+
+    // Register a callback with this connection.  NAME is the name of
+    // the method being registered.  FUNC is the function.  It must
+    // know how to decode its own arguments.  When a query packet is
+    // received by one of the wait_* methods, the corresponding
+    // callback is invoked.
+    void add_callback (const char *name, callback_ftype *func)
+    {
+      m_callbacks.add_callback (name, func);
+    }
+
+    virtual void print (const char *);
+
+  private:
+
+    // Declared but not defined, to prevent use.
+    connection (const connection &);
+    connection &operator= (const connection &);
+
+    // Helper function for the wait_* methods.
+    status do_wait (bool);
+
+    // The file descriptor.
+    int m_fd;
+
+    // An auxiliary file descriptor, or -1 if none.
+    int m_aux_fd;
+
+    // Callbacks associated with this connection.
+    callbacks m_callbacks;
+  };
+}
+
+#endif // CC1_PLUGIN_CONNECTION_HH