gcc/libcc1/connection.hh

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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
2014-10-27 18:21:42 +01:00
/* 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