1  /* Base configuration file for all DragonFly targets.
       2     Copyright (C) 2014-2023 Free Software Foundation, Inc.
       3     Contributed by John Marino <gnugcc@marino.st>
       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  Under Section 7 of GPL version 3, you are granted additional
      18  permissions described in the GCC Runtime Library Exception, version
      19  3.1, as published by the Free Software Foundation.
      20  
      21  You should have received a copy of the GNU General Public License and
      22  a copy of the GCC Runtime Library Exception along with this program;
      23  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      24  <http://www.gnu.org/licenses/>.  */
      25  
      26  #undef  TARGET_OS_CPP_BUILTINS
      27  #define TARGET_OS_CPP_BUILTINS()            \
      28    do                                        \
      29      {                                       \
      30         builtin_define_std ("unix");         \
      31         builtin_define ("__DragonFly__");    \
      32         builtin_assert ("system=unix");      \
      33         builtin_assert ("system=bsd");       \
      34         builtin_assert ("system=DragonFly"); \
      35      }                                       \
      36    while (0)
      37  
      38  #undef  CPP_SPEC
      39  #define CPP_SPEC \
      40   "%(cpp_cpu) %(cpp_arch) %{posix:-D_POSIX_SOURCE}"
      41  
      42  #undef  STARTFILE_SPEC
      43  #define STARTFILE_SPEC	\
      44    "%{!shared: \
      45       %{pg:gcrt1.o%s} \
      46       %{!pg: \
      47         %{p:gcrt1.o%s} \
      48         %{!p: \
      49           %{profile: gcrt1.o%s} \
      50           %{!profile: \
      51             %{pie: Scrt1.o%s;:crt1.o%s}}}}} \
      52     crti.o%s \
      53     %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
      54  
      55  #undef  ENDFILE_SPEC
      56  #define ENDFILE_SPEC \
      57    "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
      58  
      59  #undef  LIB_SPEC
      60  #define LIB_SPEC \
      61    "%{pthread:-lpthread} -lc"
      62  
      63  #if defined(HAVE_LD_EH_FRAME_HDR)
      64  #define LINK_EH_SPEC "--eh-frame-hdr"
      65  #endif
      66  
      67  /* Provide a LINK_SPEC appropriate for DragonFly.  Here we provide support
      68     for the special GCC options -static and -shared, which allow us to
      69     link things in one of these three modes by applying the appropriate
      70     combinations of options at link-time.
      71  
      72     When the -shared link option is used a final link is not being
      73     done.  */
      74  
      75  #define DFBSD_LINK_SPEC \
      76   "%{p:%nconsider using '-pg' instead of '-p' with gprof(1)} \
      77    %{v:-V} \
      78    %{assert*} %{R*} %{rpath*} %{defsym*} \
      79    %{shared:-Bshareable %{h*} %{soname*}} \
      80    %{!shared: \
      81     %{!static: \
      82      %{rdynamic:-export-dynamic} \
      83      -dynamic-linker %(dfbsd_dynamic_linker) \
      84     } \
      85     %{static:-Bstatic} \
      86    } \
      87    %{!static:--hash-style=gnu} \
      88    %{symbolic:-Bsymbolic}"
      89  
      90  #undef  LINK_SPEC
      91  #define LINK_SPEC DFBSD_LINK_SPEC
      92  
      93  #define DFBSD_DYNAMIC_LINKER "/usr/libexec/ld-elf.so.2"
      94  
      95  
      96  /* Use --as-needed -lgcc_s for eh support.  */
      97  #ifdef HAVE_LD_AS_NEEDED
      98  #define USE_LD_AS_NEEDED 1
      99  #endif
     100  
     101  /************************[  Target stuff  ]***********************************/
     102  
     103  /* All DragonFly Architectures support the ELF object file format.  */
     104  #undef  OBJECT_FORMAT_ELF
     105  #define OBJECT_FORMAT_ELF
     106  
     107  /* Follow DragonFly's standard headers (<machine/stdint.h>, etc...).  */
     108  
     109  #undef  WCHAR_TYPE
     110  #define WCHAR_TYPE "int"
     111  
     112  #undef  WINT_TYPE
     113  #define WINT_TYPE "int"
     114  
     115  /* Code generation parameters.  */
     116  
     117  /* Use periods rather than dollar signs in special g++ assembler names.
     118     This ensures the configuration knows our system correctly so we can link
     119     with libraries compiled with the native cc.  */
     120  #undef NO_DOLLAR_IN_LABEL
     121  
     122  /* Used by libgcc2.c.  We support file locking with fcntl / F_SETLKW.
     123     This enables the test coverage code to use file locking when exiting a
     124     program, which avoids race conditions if the program has forked.  */
     125  #define TARGET_POSIX_IO