gcc/config/cris/linux.h

   1 /* Definitions for GCC.  Part of the machine description for CRIS.
   2    Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007 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 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 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21
  22 /* After the first "Node:" comment comes all preprocessor directives and
  23    attached declarations described in the info files, the "Using and
  24    Porting GCC" manual (uapgcc), in the same order as found in the "Target
  25    macros" section in the gcc-2.9x CVS edition of 2000-03-17.  FIXME: Not
  26    really, but needs an update anyway.
  27
  28    There is no generic copy-of-uapgcc comment, you'll have to see uapgcc
  29    for that.  If applicable, there is a CRIS-specific comment.  The order
  30    of macro definitions follow the order in the manual.  Every section in
  31    the manual (node in the info pages) has an introductory `Node:
  32    <subchapter>' comment.  If no macros are defined for a section, only
  33    the section-comment is present.  */
  34
  35 /* This file defines the macros for cris-axis-linux-gnu that are not
  36    covered by cris.h, elfos.h and (config/)linux.h.  */
  37
  38
  39 /* Node: Instruction Output */
  40
  41 #undef USER_LABEL_PREFIX
  42 #define USER_LABEL_PREFIX ""
  43
  44 /* Node: Driver */
  45 /* These macros are CRIS-specific, but used in target driver macros.  */
  46
  47 #undef CRIS_CPP_SUBTARGET_SPEC
  48 #define CRIS_CPP_SUBTARGET_SPEC \
  49   "%{pthread:-D_REENTRANT}\
  50    %{!march=*:%{!cpu=*:-D__arch_v10 -D__CRIS_arch_version=10}}"
  51
  52 #undef CRIS_CC1_SUBTARGET_SPEC
  53 #define CRIS_CC1_SUBTARGET_SPEC \
  54  "%{!march=*:%{!cpu=*:-march=v10}}"
  55
  56 #undef CRIS_ASM_SUBTARGET_SPEC
  57 #define CRIS_ASM_SUBTARGET_SPEC \
  58  "--em=criself\
  59   %{!fleading-underscore:--no-underscore}\
  60   %{fPIC|fpic|fPIE|fpie: --pic}"
  61
  62 /* Previously controlled by target_flags.  */
  63 #undef TARGET_LINUX
  64 #define TARGET_LINUX 1
  65
  66 #undef CRIS_SUBTARGET_DEFAULT
  67 #define CRIS_SUBTARGET_DEFAULT                  \
  68   (MASK_SVINTO                                  \
  69    + MASK_ETRAX4_ADD                            \
  70    + MASK_ALIGN_BY_32)
  71
  72 #undef CRIS_DEFAULT_CPU_VERSION
  73 #define CRIS_DEFAULT_CPU_VERSION CRIS_CPU_NG
  74
  75 #undef CRIS_SUBTARGET_VERSION
  76 #define CRIS_SUBTARGET_VERSION " - cris-axis-linux-gnu"
  77
  78 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  79
  80 /* We need an -rpath-link to ld.so.1, and presumably to each directory
  81    specified with -B.  */
  82 #undef CRIS_LINK_SUBTARGET_SPEC
  83 #define CRIS_LINK_SUBTARGET_SPEC \
  84  "-mcrislinux\
  85   -rpath-link include/asm/../..%s\
  86   %{shared} %{static}\
  87   %{symbolic:-Bdynamic} %{shlib:-Bdynamic} %{static:-Bstatic}\
  88   %{!shared:%{!static:\
  89               %{rdynamic:-export-dynamic}\
  90               %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}}}\
  91   %{!r:%{O2|O3: --gc-sections}}"
  92
  93
  94 /* Node: Run-time Target */
  95
  96 /* For the cris-*-linux* subtarget.  */
  97 #undef TARGET_OS_CPP_BUILTINS
  98 #define TARGET_OS_CPP_BUILTINS()                \
  99   do                                            \
 100     {                                           \
 101       LINUX_TARGET_OS_CPP_BUILTINS();           \
 102       if (flag_leading_underscore <= 0)         \
 103         builtin_define ("__NO_UNDERSCORES__");  \
 104     }                                           \
 105   while (0)
 106
 107
 108 /* Node: Sections */
 109
 110 /* GNU/Linux has crti and crtn and does not need the
 111    CRT_CALL_STATIC_FUNCTION trick in cris.h.  */
 112 #undef CRT_CALL_STATIC_FUNCTION
 113
 114 /*
 115  * Local variables:
 116  * eval: (c-set-style "gnu")
 117  * indent-tabs-mode: t
 118  * End:
 119  */