gcc/config/arm/symbian.h

   1 /* Configuration file for Symbian OS on ARM processors.
   2    Copyright (C) 2004
   3    Free Software Foundation, Inc.
   4    Contributed by CodeSourcery, LLC
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 2, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING.  If not, write to
  20    the Free Software Foundation, 59 Temple Place - Suite 330,
  21    Boston, MA 02111-1307, USA.  */
  22
  23 /* Use the SYMBIAN ABI by default.  */
  24 #define ARM_DEFAULT_ABI ARM_ABI_AAPCS
  25
  26 /* Do not expand builtin functions (unless explicitly prefixed with
  27    "__builtin").  Symbian OS code relies on properties of the standard
  28    library that go beyond those guaranteed by the ANSI/ISO standard.
  29    For example, "memcpy" works even with overlapping memory, like
  30    "memmove".  We cannot simply set flag_no_builtin in arm.c because
  31    (a) flag_no_builtin is not declared in language-independent code,
  32    and (b) that would prevent users from explicitly overriding the
  33    default with -fbuiltin, which may sometimes be useful.
  34
  35    Make all symbols hidden by default.  Symbian OS expects that all
  36    exported symbols will be explicitly marked with
  37    "__declspec(dllexport)".  */
  38 #define CC1_SPEC "-fno-builtin -fvisibility=hidden"
  39 #define CC1PLUS_SPEC "-fno-builtin -fvisibility=hidden"
  40
  41 /* Symbian OS does not use crt0.o, unlike the generic unknown-elf
  42    configuration.  */
  43 #undef STARTFILE_SPEC
  44 #define STARTFILE_SPEC "crti%O%s crtbegin%O%s"
  45
  46 /* The generic link spec in elf.h does not support shared libraries.  */
  47 #undef LINK_SPEC
  48 #define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} "           \
  49   "%{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic} "        \
  50   "-X"
  51
  52 /* Support the "dllimport" attribute.  */
  53 #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1