libgcc/config/frv/frvend.c

   1 /* Frv initialization file linked after all user modules
   2    Copyright (C) 1999-2017 Free Software Foundation, Inc.
   3     Contributed by Red Hat, Inc.
   4
   5    This file is part of GCC.
   6
   7    GCC is free software ; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY ; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    Under Section 7 of GPL version 3, you are granted additional
  18    permissions described in the GCC Runtime Library Exception, version
  19    3.1, as published by the Free Software Foundation.
  20
  21    You should have received a copy of the GNU General Public License and
  22    a copy of the GCC Runtime Library Exception along with this program;
  23    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24    <http://www.gnu.org/licenses/>.  */
  25
  26 #include <stddef.h>
  27 #include "../libgcc/unwind-dw2-fde.h"
  28
  29 #ifdef __FRV_UNDERSCORE__
  30 #define UNDERSCORE "_"
  31 #else
  32 #define UNDERSCORE ""
  33 #endif
  34
  35 #define FINI_SECTION_ZERO(SECTION, FLAGS, NAME)                         \
  36 __asm__ (".section " SECTION "," FLAGS "\n\t"                           \
  37          ".globl   " UNDERSCORE NAME "\n\t"                             \
  38          ".type    " UNDERSCORE NAME ",@object\n\t"                     \
  39          ".p2align  2\n"                                                \
  40          UNDERSCORE NAME ":\n\t"                                        \
  41          ".word     0\n\t"                                              \
  42          ".previous")
  43
  44 #define FINI_SECTION(SECTION, FLAGS, NAME)                              \
  45 __asm__ (".section " SECTION "," FLAGS "\n\t"                           \
  46          ".globl   " UNDERSCORE NAME "\n\t"                             \
  47          ".type    " UNDERSCORE NAME ",@object\n\t"                     \
  48          ".p2align  2\n"                                                \
  49          UNDERSCORE NAME ":\n\t"                                        \
  50          ".previous")
  51
  52 /* End of .ctor/.dtor sections that provides a list of constructors and
  53    destructors to run.  */
  54
  55 FINI_SECTION_ZERO (".ctors", "\"aw\"", "__CTOR_END__");
  56 FINI_SECTION_ZERO (".dtors", "\"aw\"", "__DTOR_END__");
  57
  58 /* End of .eh_frame section that provides all of the exception handling
  59    tables.  */
  60
  61 FINI_SECTION_ZERO (".eh_frame", "\"aw\"", "__FRAME_END__");
  62
  63 #if ! __FRV_FDPIC__
  64 /* In FDPIC, the linker itself generates this.  */
  65 /* End of .rofixup section that provides a list of pointers that we
  66    need to adjust.  */
  67
  68 FINI_SECTION (".rofixup", "\"a\"", "__ROFIXUP_END__");
  69 #endif /* __FRV_FDPIC__ */