gcc/config/lm32/uclinux-elf.h

   1 /* Definitions for LM32 running Linux-based GNU systems using ELF
   2    Copyright (C) 1993-2018 Free Software Foundation, Inc.
   3    Contributed by Philip Blundell <philb@gnu.org>
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published
   9    by the Free Software Foundation; either version 3, or (at your
  10    option) any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    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 /* elfos.h should have already been included.  Now just override
  22    any conflicting definitions and add any extras.  */
  23
  24 /* The GNU C++ standard library requires that these macros be defined.  */
  25 #undef CPLUSPLUS_CPP_SPEC
  26 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
  27
  28 /* Now we define the strings used to build the spec file.  */
  29 #undef  LIB_SPEC
  30 #define LIB_SPEC \
  31   "%{pthread:-lpthread} \
  32    %{shared:-lc} \
  33    %{!shared:-lc} "
  34
  35 #define LIBGCC_SPEC "-lgcc"
  36
  37 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux.  Here we add
  38    the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
  39    provides part of the support for getting C++ file-scope static
  40    object constructed before entering `main'.  */
  41
  42 #undef  STARTFILE_SPEC
  43 #define STARTFILE_SPEC \
  44   "%{!shared: \
  45      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
  46                        %{!p:%{profile:gcrt1.o%s} \
  47                          %{!profile:crt1.o%s}}}} \
  48    crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
  49
  50 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux.  Here we tack on
  51    the GNU/Linux magical crtend.o file (see crtstuff.c) which
  52    provides part of the support for getting C++ file-scope static
  53    object constructed before entering `main', followed by a normal
  54    GNU/Linux "finalizer" file, `crtn.o'.  */
  55
  56 #undef  ENDFILE_SPEC
  57 #define ENDFILE_SPEC \
  58   "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
  59
  60 #undef  LINK_SPEC
  61 #define LINK_SPEC "%{h*} \
  62    %{static:-Bstatic} \
  63    %{shared:-shared} \
  64    %{symbolic:-Bsymbolic} \
  65    %{rdynamic:-export-dynamic} \
  66    -dynamic-linker /lib/ld-linux.so.2"
  67
  68 #define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()
  69
  70 #define LINK_GCC_C_SEQUENCE_SPEC \
  71   "%{static|static-pie:--start-group} %G %L \
  72    %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
  73
  74 #undef  CC1_SPEC
  75 #define CC1_SPEC "%{G*} %{!fno-PIC:-fPIC}"