gcc/config/alpha/freebsd.h

   1 /* Definitions for DEC Alpha/AXP running FreeBSD using the ELF format
   2    Copyright (C) 2000, 2002, 2004, 2005, 2007, 2010, 2011
   3    Free Software Foundation, Inc.
   4    Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public 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 COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22
  23 #undef  EXTRA_SPECS
  24 #define EXTRA_SPECS \
  25   { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
  26
  27 /* Provide a CPP_SPEC appropriate for FreeBSD/alpha -- dealing with
  28    the GCC option `-posix'.  */
  29
  30 #undef  CPP_SPEC
  31 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
  32
  33 #define LINK_SPEC "%{G*} %{relax:-relax}                                \
  34   %{p:%nconsider using '-pg' instead of '-p' with gprof(1)}             \
  35   %{assert*} %{R*} %{rpath*} %{defsym*}                                 \
  36   %{shared:-Bshareable %{h*} %{soname*}}                                \
  37   %{!shared:                                                            \
  38     %{!static:                                                          \
  39       %{rdynamic:-export-dynamic}                                       \
  40       -dynamic-linker %(fbsd_dynamic_linker) }  \
  41     %{static:-Bstatic}}                                                 \
  42   %{symbolic:-Bsymbolic}"
  43
  44
  45 /************************[  Target stuff  ]***********************************/
  46
  47 /* Define the actual types of some ANSI-mandated types.
  48    Needs to agree with <machine/ansi.h>.  GCC defaults come from c-decl.c,
  49    c-common.c, and config/<arch>/<arch>.h.  */
  50
  51 /* alpha.h gets this wrong for FreeBSD.  We use the GCC defaults instead.  */
  52 #undef WCHAR_TYPE
  53
  54 #undef  WCHAR_TYPE_SIZE
  55 #define WCHAR_TYPE_SIZE 32
  56
  57 #define TARGET_ELF      1
  58
  59 #undef  TARGET_DEFAULT
  60 #define TARGET_DEFAULT  (MASK_FPREGS | MASK_GAS)
  61
  62 #undef HAS_INIT_SECTION
  63
  64 /* Show that we need a GP when profiling.  */
  65 #undef  TARGET_PROFILING_NEEDS_GP
  66 #define TARGET_PROFILING_NEEDS_GP 1
  67
  68 /* This is the char to use for continuation (in case we need to turn
  69    continuation back on).  */
  70
  71 #undef  DBX_CONTIN_CHAR
  72 #define DBX_CONTIN_CHAR '?'
  73
  74 /* Don't default to pcc-struct-return, we want to retain compatibility with
  75    older FreeBSD releases AND pcc-struct-return may not be reentrant.  */
  76
  77 #undef  DEFAULT_PCC_STRUCT_RETURN
  78 #define DEFAULT_PCC_STRUCT_RETURN 0