gcc/libcc1/callbacks.cc

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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
/* 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;
}