gcc/config/cris/linux.h

   1 /* Definitions for GCC.  Part of the machine description for CRIS.
   2    Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
   3    Contributed by Axis Communications.  Written by Hans-Peter Nilsson.
   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 2, 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 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22
  23 /* After the first "Node:" comment comes all preprocessor directives and
  24    attached declarations described in the info files, the "Using and
  25    Porting GCC" manual (uapgcc), in the same order as found in the "Target
  26    macros" section in the gcc-2.9x CVS edition of 2000-03-17.  FIXME: Not
  27    really, but needs an update anyway.
  28
  29    There is no generic copy-of-uapgcc comment, you'll have to see uapgcc
  30    for that.  If applicable, there is a CRIS-specific comment.  The order
  31    of macro definitions follow the order in the manual.  Every section in
  32    the manual (node in the info pages) has an introductory `Node:
  33    <subchapter>' comment.  If no macros are defined for a section, only
  34    the section-comment is present.  */
  35
  36 /* This file defines the macros for cris-axis-linux-gnu that are not
  37    covered by cris.h, elfos.h and (config/)linux.h.  */
  38
  39
  40 /* Node: Instruction Output */
  41
  42 #undef USER_LABEL_PREFIX
  43 #define USER_LABEL_PREFIX ""
  44
  45 /* Node: Driver */
  46 /* These macros are CRIS-specific, but used in target driver macros.  */
  47
  48 #undef CRIS_CPP_SUBTARGET_SPEC
  49 #define CRIS_CPP_SUBTARGET_SPEC \
  50   "%{pthread:-D_REENTRANT}\
  51    %{!march=*:%{!cpu=*:-D__arch_v10 -D__CRIS_arch_version=10}}"
  52
  53 #undef CRIS_CC1_SUBTARGET_SPEC
  54 #define CRIS_CC1_SUBTARGET_SPEC \
  55  "%{!march=*:%{!cpu=*:-march=v10}}"
  56
  57 #undef CRIS_ASM_SUBTARGET_SPEC
  58 #define CRIS_ASM_SUBTARGET_SPEC \
  59  "--em=criself\
  60   %{!fleading-underscore:--no-underscore}\
  61   %{fPIC|fpic|fPIE|fpie: --pic}"
  62
  63 /* Previously controlled by target_flags.  */
  64 #undef TARGET_LINUX
  65 #define TARGET_LINUX 1
  66
  67 #undef CRIS_SUBTARGET_DEFAULT
  68 #define CRIS_SUBTARGET_DEFAULT                  \
  69   (MASK_SVINTO                                  \
  70    + MASK_ETRAX4_ADD                            \
  71    + MASK_ALIGN_BY_32)
  72
  73 #undef CRIS_DEFAULT_CPU_VERSION
  74 #define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG
  75
  76 #undef CRIS_SUBTARGET_VERSION
  77 #define CRIS_SUBTARGET_VERSION " - cris-axis-linux-gnu"
  78
  79 /* We need an -rpath-link to ld.so.1, and presumably to each directory
  80    specified with -B.  */
  81 #undef CRIS_LINK_SUBTARGET_SPEC
  82 #define CRIS_LINK_SUBTARGET_SPEC \
  83  "-mcrislinux\
  84   -rpath-link include/asm/../..%s\
  85   %{shared} %{static}\
  86   %{symbolic:-Bdynamic} %{shlib:-Bdynamic} %{static:-Bstatic}\
  87   %{!shared:%{!static:%{rdynamic:-export-dynamic}}}\
  88   %{!r:%{O2|O3: --gc-sections}}"
  89
  90
  91 /* Node: Run-time Target */
  92
  93 /* For the cris-*-linux* subtarget.  */
  94 #undef TARGET_OS_CPP_BUILTINS
  95 #define TARGET_OS_CPP_BUILTINS()                \
  96   do                                            \
  97     {                                           \
  98       LINUX_TARGET_OS_CPP_BUILTINS();           \
  99       if (flag_pic)                             \
 100         {                                       \
 101           builtin_define ("__PIC__");           \
 102           builtin_define ("__pic__");           \
 103         }                                       \
 104       if (flag_leading_underscore <= 0)         \
 105         builtin_define ("__NO_UNDERSCORES__");  \
 106     }                                           \
 107   while (0)
 108
 109
 110 /* Node: Sections */
 111
 112 /* GNU/Linux has crti and crtn and does not need the
 113    CRT_CALL_STATIC_FUNCTION trick in cris.h.  */
 114 #undef CRT_CALL_STATIC_FUNCTION
 115
 116 /*
 117  * Local variables:
 118  * eval: (c-set-style "gnu")
 119  * indent-tabs-mode: t
 120  * End:
 121  */