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/* Solaris support needed only by C/C++ frontends.

   Copyright (C) 2004, 2005, 2007, 2009, 2010 Free Software Foundation, Inc.

   Contributed by CodeSourcery, LLC.

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 "coretypes.h"

#include "tree.h"

#include "tm.h"

#include "tm_p.h"

#include "toplev.h"

#include "c-format.h"

#include "intl.h"

#include "cpplib.h"

#include "c-pragma.h"

#include "c-common.h"

/* cmn_err only accepts "l" and "ll".  */

static const format_length_info cmn_err_length_specs[] =

{

  { "l", FMT_LEN_l, STD_C89, "ll", FMT_LEN_ll, STD_C89, 0 },

  { NULL, FMT_LEN_none, STD_C89, NULL, FMT_LEN_none, STD_C89, 0 }

};

static const format_flag_spec cmn_err_flag_specs[] =

{

  { 'w',  0, 0, N_("field width"),     N_("field width in printf format"),     STD_C89 },

  { 'L',  0, 0, N_("length modifier"), N_("length modifier in printf format"), STD_C89 },

  { 0, 0, 0, NULL, NULL, STD_C89 }

};

static const format_flag_pair cmn_err_flag_pairs[] =

{

  { 0, 0, 0, 0 }

};

static const format_char_info bitfield_string_type =

  { "b",   1, STD_C89, { T89_C,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "",   "cR", NULL };

static const format_char_info cmn_err_char_table[] =

{

  /* C89 conversion specifiers.  */

  { "dD",  0, STD_C89, { T89_I,   BADLEN,  BADLEN,  T89_L,   T9L_LL,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w",  "",   NULL },

  { "oOxX",0, STD_C89, { T89_UI,  BADLEN,  BADLEN,  T89_UL,  T9L_ULL, BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w",  "",   NULL },

  { "u",   0, STD_C89, { T89_UI,  BADLEN,  BADLEN,  T89_UL,  T9L_ULL, BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w",  "",   NULL },

  { "c",   0, STD_C89, { T89_C,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w",  "",   NULL },

  { "p",   1, STD_C89, { T89_V,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w", "c",  NULL },

  { "s",   1, STD_C89, { T89_C,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w",  "cR", NULL },

  { "b",   0, STD_C89, { T89_I,   BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN,  BADLEN  }, "w",   "",   &bitfield_string_type },

  { NULL,  0, STD_C89, NOLENGTHS, NULL, NULL, NULL }

};

const format_kind_info solaris_format_types[] = {

  { "cmn_err",  cmn_err_length_specs,  cmn_err_char_table, "", NULL,

    cmn_err_flag_specs, cmn_err_flag_pairs,

    FMT_FLAG_ARG_CONVERT|FMT_FLAG_EMPTY_PREC_OK,

    'w', 0, 0, 0, 'L', 0,

    &integer_type_node, &integer_type_node

  }

};

/* Handle #pragma align ALIGNMENT (VAR [, VAR]...)  */

static void

solaris_pragma_align (cpp_reader *pfile ATTRIBUTE_UNUSED)

{

  tree t, x;

  enum cpp_ttype ttype;

  HOST_WIDE_INT low;

  if (pragma_lex (&x) != CPP_NUMBER

      || pragma_lex (&t) != CPP_OPEN_PAREN)

    {

      warning (0, "malformed %<#pragma align%>, ignoring");

      return;

    }

  low = TREE_INT_CST_LOW (x);

  if (TREE_INT_CST_HIGH (x) != 0

      || (low != 1 && low != 2 && low != 4 && low != 8 && low != 16

          && low != 32 && low != 64 && low != 128))

    {

      warning (0, "invalid alignment for %<#pragma align%>, ignoring");

      return;

    }

  ttype = pragma_lex (&t);

  if (ttype != CPP_NAME)

    {

      warning (0, "malformed %<#pragma align%>, ignoring");

      return;

    }

  while (1)

    {

      tree decl = identifier_global_value (t);

      if (decl && DECL_P (decl))

        warning (0, "%<#pragma align%> must appear before the declaration of "

                 "%D, ignoring", decl);

      else

        solaris_pending_aligns = tree_cons (t, build_tree_list (NULL, x),

                                            solaris_pending_aligns);

      ttype = pragma_lex (&t);

      if (ttype == CPP_COMMA)

        {

          ttype = pragma_lex (&t);

          if (ttype != CPP_NAME)

            {

              warning (0, "malformed %<#pragma align%>");

              return;

            }

        }

      else if (ttype == CPP_CLOSE_PAREN)

        {

          if (pragma_lex (&t) != CPP_EOF)

            warning (0, "junk at end of %<#pragma align%>");

          return;

        }

      else

        {

          warning (0, "malformed %<#pragma align%>");

          return;

        }

    }

}

/* Handle #pragma init (function [, function]...)  */

static void

solaris_pragma_init (cpp_reader *pfile ATTRIBUTE_UNUSED)

{

  tree t;

  enum cpp_ttype ttype;

  if (pragma_lex (&t) != CPP_OPEN_PAREN)

    {

      warning (0, "malformed %<#pragma init%>, ignoring");

      return;

    }

  ttype = pragma_lex (&t);

  if (ttype != CPP_NAME)

    {

      warning (0, "malformed %<#pragma init%>, ignoring");

      return;

    }

  while (1)

    {

      tree decl = identifier_global_value (t);

      if (decl && DECL_P (decl))

        {

          tree attrs = build_tree_list (get_identifier ("init"),

                                        NULL);

          TREE_USED (decl) = 1;

          DECL_PRESERVE_P (decl) = 1;

          decl_attributes (&decl, attrs, 0);

        }

      else

        solaris_pending_inits = tree_cons (t, NULL, solaris_pending_inits);

      ttype = pragma_lex (&t);

      if (ttype == CPP_COMMA)

        {

          ttype = pragma_lex (&t);

          if (ttype != CPP_NAME)

            {

              warning (0, "malformed %<#pragma init%>");

              return;

            }

        }

      else if (ttype == CPP_CLOSE_PAREN)

        {

          if (pragma_lex (&t) != CPP_EOF)

            warning (0, "junk at end of %<#pragma init%>");

          return;

        }

      else

        {

          warning (0, "malformed %<#pragma init%>");

          return;

        }

    }

}

/* Handle #pragma fini (function [, function]...)  */

static void

solaris_pragma_fini (cpp_reader *pfile ATTRIBUTE_UNUSED)

{

  tree t;

  enum cpp_ttype ttype;

  if (pragma_lex (&t) != CPP_OPEN_PAREN)

    {

      warning (0, "malformed %<#pragma fini%>, ignoring");

      return;

    }

  ttype = pragma_lex (&t);

  if (ttype != CPP_NAME)

    {

      warning (0, "malformed %<#pragma fini%>, ignoring");

      return;

    }

  while (1)

    {

      tree decl = identifier_global_value (t);

      if (decl && DECL_P (decl))

        {

          tree attrs = build_tree_list (get_identifier ("fini"),

                                        NULL);

          TREE_USED (decl) = 1;

          DECL_PRESERVE_P (decl) = 1;

          decl_attributes (&decl, attrs, 0);

        }

      else

        solaris_pending_finis = tree_cons (t, NULL, solaris_pending_finis);

      ttype = pragma_lex (&t);

      if (ttype == CPP_COMMA)

        {

          ttype = pragma_lex (&t);

          if (ttype != CPP_NAME)

            {

              warning (0, "malformed %<#pragma fini%>");

              return;

            }

        }

      else if (ttype == CPP_CLOSE_PAREN)

        {

          if (pragma_lex (&t) != CPP_EOF)

            warning (0, "junk at end of %<#pragma fini%>");

          return;

        }

      else

        {

          warning (0, "malformed %<#pragma fini%>");

          return;

        }

    }

}

/* Register Solaris-specific #pragma directives.  */

void

solaris_register_pragmas (void)

{

  c_register_pragma_with_expansion (0, "align", solaris_pragma_align);

  c_register_pragma (0, "init", solaris_pragma_init);

  c_register_pragma (0, "fini", solaris_pragma_fini);

}