gcc/config/mips/linux64.h

   1 /* Definitions for MIPS running Linux-based GNU systems with ELF format
   2    using n32/64 abi.
   3    Copyright 2002, 2003, 2004, 2005, 2006, 2007 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
   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 /* Force the default endianness and ABI flags onto the command line
  22    in order to make the other specs easier to write.  */
  23 #undef DRIVER_SELF_SPECS
  24 #define DRIVER_SELF_SPECS \
  25 NO_SHARED_SPECS \
  26 " %{!EB:%{!EL:%(endian_spec)}}" \
  27 " %{!mabi=*: -mabi=n32}"
  28
  29 #undef SUBTARGET_ASM_SPEC
  30 #define SUBTARGET_ASM_SPEC "\
  31 %{!fno-PIC:%{!fno-pic:-KPIC}} \
  32 %{fno-PIC:-non_shared} %{fno-pic:-non_shared}"
  33
  34 #undef LIB_SPEC
  35 #define LIB_SPEC "\
  36 %{pthread:-lpthread} \
  37 %{shared:-lc} \
  38 %{!shared: \
  39   %{profile:-lc_p} %{!profile:-lc}}"
  40
  41 #define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
  42 #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld.so.1"
  43 #define GLIBC_DYNAMIC_LINKERN32 "/lib32/ld.so.1"
  44 #define UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0"
  45 #define LINUX_DYNAMIC_LINKERN32 \
  46   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32)
  47
  48 #undef LINK_SPEC
  49 #define LINK_SPEC "\
  50 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
  51 %{bestGnum} %{shared} %{non_shared} \
  52 %{call_shared} %{no_archive} %{exact_version} \
  53  %(endian_spec) \
  54   %{!shared: \
  55     %{!ibcs: \
  56       %{!static: \
  57         %{rdynamic:-export-dynamic} \
  58         %{!dynamic-linker: \
  59           %{mabi=n32: -dynamic-linker " LINUX_DYNAMIC_LINKERN32 "} \
  60           %{mabi=64: -dynamic-linker " LINUX_DYNAMIC_LINKER64 "} \
  61           %{mabi=32: -dynamic-linker " LINUX_DYNAMIC_LINKER32 "}}} \
  62       %{static:-static}}} \
  63 %{mabi=n32:-melf32%{EB:b}%{EL:l}tsmipn32} \
  64 %{mabi=64:-melf64%{EB:b}%{EL:l}tsmip} \
  65 %{mabi=32:-melf32%{EB:b}%{EL:l}tsmip}"
  66
  67 #undef LOCAL_LABEL_PREFIX
  68 #define LOCAL_LABEL_PREFIX (TARGET_OLDABI ? "$" : ".")
  69
  70 /* GNU/Linux doesn't use the same floating-point format that IRIX uses
  71    for long double.  There's no need to override this here, since
  72    ieee_quad_format is the default, but let's put this here to make
  73    sure nobody thinks we just forgot to set it to something else.  */
  74 #define MIPS_TFMODE_FORMAT mips_quad_format