gcc/config/xtensa/uclinux.h

   1 /* Xtensa uClinux configuration.
   2    Derived from the configuration for GCC for Intel i386 running Linux.
   3    Copyright (C) 2001-2017 Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 3, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 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 #undef TARGET_OS_CPP_BUILTINS
  22 #define TARGET_OS_CPP_BUILTINS()                                \
  23   do                                                            \
  24     {                                                           \
  25       GNU_USER_TARGET_OS_CPP_BUILTINS ();                       \
  26       builtin_define ("__uClinux__");                           \
  27     }                                                           \
  28   while (0)
  29
  30 #undef SUBTARGET_CPP_SPEC
  31 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
  32
  33 #undef SIZE_TYPE
  34 #define SIZE_TYPE "unsigned int"
  35
  36 #undef PTRDIFF_TYPE
  37 #define PTRDIFF_TYPE "int"
  38
  39 #undef WCHAR_TYPE
  40 #define WCHAR_TYPE "long int"
  41
  42 #undef WCHAR_TYPE_SIZE
  43 #define WCHAR_TYPE_SIZE 32
  44
  45 #undef ASM_SPEC
  46 #define ASM_SPEC \
  47  "%{mtext-section-literals:--text-section-literals} \
  48   %{mno-text-section-literals:--no-text-section-literals} \
  49   %{mtarget-align:--target-align} \
  50   %{mno-target-align:--no-target-align} \
  51   %{mlongcalls:--longcalls} \
  52   %{mno-longcalls:--no-longcalls} \
  53   %{mauto-litpools:--auto-litpools} \
  54   %{mno-auto-litpools:--no-auto-litpools}"
  55
  56 #undef LINK_SPEC
  57 #define LINK_SPEC "%{!no-elf2flt:%{!elf2flt*:-elf2flt}}"
  58
  59 #undef LOCAL_LABEL_PREFIX
  60 #define LOCAL_LABEL_PREFIX      "."
  61
  62 /* Always enable "-fpic" for Xtensa Linux.  */
  63 #define XTENSA_ALWAYS_PIC 1
  64
  65 #undef TARGET_LIBC_HAS_FUNCTION
  66 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
  67
  68 #undef DBX_REGISTER_NUMBER
  69