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/* Wrapper for ar/ranlib/nm to pass the LTO plugin.

   Copyright (C) 2011 Free Software Foundation, Inc.

   Contributed by Andi Kleen.

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 "system.h"

#include "libiberty.h"

#ifndef PERSONALITY

#error "Please set personality"

#endif

static const char standard_libexec_prefix[] = STANDARD_LIBEXEC_PREFIX;

static const char standard_bin_prefix[] = STANDARD_BINDIR_PREFIX;

static const char *const target_machine = TARGET_MACHINE;

static const char dir_separator[] = { DIR_SEPARATOR, 0 };

int

main(int ac, char **av)

{

  const char *nprefix;

  const char *exe_name;

  char *plugin;

  int k, status, err;

  const char *err_msg;

  const char **nargv;

  bool is_ar = !strcmp (PERSONALITY, "ar");

  exe_name = PERSONALITY;

#ifdef CROSS_DIRECTORY_STRUCTURE

  exe_name = concat (target_machine, "-", exe_name, NULL);

#endif

  /* Find plugin */

  /* XXX implement more magic from gcc.c? */

  nprefix = getenv ("GCC_EXEC_PREFIX");

  if (!nprefix)

    nprefix = standard_libexec_prefix;

  nprefix = make_relative_prefix (av[0],

                                  standard_bin_prefix,

                                  nprefix);

  plugin = concat (nprefix,

                   dir_separator,

                   DEFAULT_TARGET_MACHINE,

                   dir_separator,

                   DEFAULT_TARGET_VERSION,

                   dir_separator,

                   LTOPLUGINSONAME,

                   NULL);

  if (access (plugin, X_OK))

    {

      fprintf (stderr, "%s: Cannot find plugin %s\n", av[0], plugin);

      exit (1);

    }

  /* Create new command line with plugin */

  nargv = XCNEWVEC (const char *, ac + 4);

  nargv[0] = exe_name;

  nargv[1] = "--plugin";

  nargv[2] = plugin;

  if (is_ar && av[1] && av[1][0] != '-')

    av[1] = concat("-", av[1], NULL);

  for (k = 1; k < ac; k++)

    nargv[2 + k] = av[k];

  nargv[2 + k] = NULL;

  /* Run utility */

  /* ??? the const is misplaced in pex_one's argv? */

  err_msg = pex_one (PEX_LAST|PEX_SEARCH,

                     exe_name,

                     CONST_CAST2 (char * const *, const char **, nargv),

                     concat("gcc-", exe_name, NULL),

                     NULL,NULL,  &status, &err);

  if (err_msg)

    fprintf(stderr, "Error running %s: %s\n", exe_name, err_msg);

  return err;

}