gcc/libcc1/findcomp.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
/* Find the correct compiler.
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 <config.h>
#include <string>
#include <dirent.h>
#include <stdlib.h>
#include "libiberty.h"
#include "xregex.h"
#include "findcomp.hh"
class scanner
{
public:
scanner (const std::string &dir)
{
m_dir = opendir (dir.c_str ());
}
~scanner ()
{
if (m_dir != NULL)
closedir (m_dir);
}
const char *next ()
{
if (m_dir == NULL)
return NULL;
struct dirent *entry = readdir (m_dir);
if (entry == NULL)
return NULL;
return entry->d_name;
}
private:
DIR *m_dir;
};
static bool
search_dir (const regex_t &regexp, const std::string &dir, std::string *result)
{
scanner scan (dir);
const char *filename;
while ((filename = scan.next ()) != NULL)
{
if (regexec (&regexp, filename, 0, NULL, 0) == 0)
{
*result = filename;
return true;
}
}
return false;
}
class tokenizer
{
public:
tokenizer (const char *str)
: m_str (str),
m_pos (0)
{
}
bool done () const
{
return m_pos == std::string::npos;
}
std::string next ()
{
std::string::size_type last_pos = m_pos;
std::string::size_type colon = m_str.find(':', last_pos);
std::string result;
if (colon == std::string::npos)
{
m_pos = colon;
result = m_str.substr(last_pos, colon);
}
else
{
m_pos = colon + 1;
result = m_str.substr(last_pos, colon - last_pos);
}
if (result == "")
result = ".";
return result;
}
private:
std::string m_str;
std::string::size_type m_pos;
};
bool
find_compiler (const regex_t &regexp, std::string *result)
{
const char *cpath = getenv ("PATH");
if (cpath == NULL)
return false;
tokenizer dirs (cpath);
while (!dirs.done ())
{
std::string dir = dirs.next ();
if (search_dir (regexp, dir, result))
return true;
}
return false;
}