gcc/config/xtensa/linux.h

   1 /* Xtensa Linux configuration.
   2    Derived from the configuration for GCC for Intel i386 running Linux.
   3    Copyright (C) 2001, 2002, 2003, 2006 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 2, 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 COPYING.  If not, write to the Free
  19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  20 02110-1301, USA.  */
  21
  22 #define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
  23
  24 #undef SUBTARGET_CPP_SPEC
  25 #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
  26
  27 #undef TARGET_VERSION
  28 #define TARGET_VERSION fputs (" (Xtensa GNU/Linux with ELF)", stderr);
  29
  30 #undef WCHAR_TYPE
  31 #define WCHAR_TYPE "long int"
  32
  33 #undef WCHAR_TYPE_SIZE
  34 #define WCHAR_TYPE_SIZE 32
  35
  36 #undef ASM_SPEC
  37 #define ASM_SPEC \
  38  "%{v} \
  39   %{mtext-section-literals:--text-section-literals} \
  40   %{mno-text-section-literals:--no-text-section-literals} \
  41   %{mtarget-align:--target-align} \
  42   %{mno-target-align:--no-target-align} \
  43   %{mlongcalls:--longcalls} \
  44   %{mno-longcalls:--no-longcalls}"
  45
  46 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
  47
  48 #undef LINK_SPEC
  49 #define LINK_SPEC \
  50  "%{shared:-shared} \
  51   %{!shared: \
  52     %{!ibcs: \
  53       %{!static: \
  54         %{rdynamic:-export-dynamic} \
  55         %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
  56       %{static:-static}}}"
  57
  58 #undef LOCAL_LABEL_PREFIX
  59 #define LOCAL_LABEL_PREFIX      "."
  60
  61 /* Always enable "-fpic" for Xtensa Linux.  */
  62 #define XTENSA_ALWAYS_PIC 1
  63
  64 /* Redefine the standard ELF version of ASM_DECLARE_FUNCTION_SIZE to
  65    allow adding the ".end literal_prefix" directive at the end of the
  66    function.  */
  67 #undef ASM_DECLARE_FUNCTION_SIZE
  68 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)            \
  69   do                                                            \
  70     {                                                           \
  71       if (!flag_inhibit_size_directive)                         \
  72         ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                 \
  73       XTENSA_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL);          \
  74     }                                                           \
  75   while (0)