1  /* Definitions for LM32 running Linux-based GNU systems using ELF
       2     Copyright (C) 1993-2023 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  #undef LINK_GCC_C_SEQUENCE_SPEC
      71  #define LINK_GCC_C_SEQUENCE_SPEC \
      72    "%{static|static-pie:--start-group} %G %{!nolibc:%L} \
      73     %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
      74  
      75  #undef  CC1_SPEC
      76  #define CC1_SPEC "%{G*} %{!fno-PIC:-fPIC}"