1  /* Definitions of target machine for GCC,
       2     for i386/ELF NetBSD systems.
       3     Copyright (C) 2001-2023 Free Software Foundation, Inc.
       4     Contributed by matthew green <mrg@eterna.com.au>
       5  
       6  This file is part of GCC.
       7  
       8  GCC is free software; you can redistribute it and/or modify
       9  it under the terms of the GNU General Public License as published by
      10  the Free Software Foundation; either version 3, or (at your option)
      11  any later version.
      12  
      13  GCC is distributed in the hope that it will be useful,
      14  but WITHOUT ANY WARRANTY; without even the implied warranty of
      15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      16  GNU General Public License for more details.
      17  
      18  You should have received a copy of the GNU General Public License
      19  along with GCC; see the file COPYING3.  If not see
      20  <http://www.gnu.org/licenses/>.  */
      21  
      22  #define TARGET_OS_CPP_BUILTINS()		\
      23    do						\
      24      {						\
      25        NETBSD_OS_CPP_BUILTINS_ELF();		\
      26      }						\
      27    while (0)
      28  
      29  
      30  /* Extra specs needed for NetBSD/i386 ELF.  */
      31  
      32  #undef SUBTARGET_EXTRA_SPECS
      33  #define SUBTARGET_EXTRA_SPECS			\
      34    { "netbsd_cpp_spec", NETBSD_CPP_SPEC },	\
      35    { "netbsd_entry_point", NETBSD_ENTRY_POINT },
      36  
      37  
      38  /* Provide a LINK_SPEC appropriate for a NetBSD/i386 ELF target.  */
      39  
      40  #undef LINK_SPEC
      41  #define LINK_SPEC NETBSD_LINK_SPEC_ELF
      42  
      43  #define NETBSD_ENTRY_POINT "__start"
      44  
      45  
      46  /* Provide a CPP_SPEC appropriate for NetBSD.  */
      47  
      48  #undef CPP_SPEC
      49  #define CPP_SPEC "%(netbsd_cpp_spec)"
      50  
      51  
      52  /* Make gcc agree with <machine/ansi.h> */
      53  
      54  #undef SIZE_TYPE
      55  #define SIZE_TYPE "unsigned int"
      56  
      57  #undef PTRDIFF_TYPE
      58  #define PTRDIFF_TYPE "int"
      59  
      60  #undef ASM_APP_ON
      61  #define ASM_APP_ON "#APP\n"
      62  
      63  #undef ASM_APP_OFF
      64  #define ASM_APP_OFF "#NO_APP\n"
      65  
      66  #undef ASM_COMMENT_START
      67  #define ASM_COMMENT_START "#"
      68  
      69  #undef DEBUGGER_REGNO
      70  #define DEBUGGER_REGNO(n)  svr4_debugger_register_map[n]
      71  
      72  
      73  /* Output assembler code to FILE to call the profiler.  */
      74  
      75  #undef NO_PROFILE_COUNTERS
      76  #define NO_PROFILE_COUNTERS	1
      77  
      78  #undef FUNCTION_PROFILER
      79  #define FUNCTION_PROFILER(FILE, LABELNO)				\
      80  {									\
      81    if (flag_pic)								\
      82      fprintf (FILE, "\tcall __mcount@PLT\n");				\
      83    else									\
      84      fprintf (FILE, "\tcall __mcount\n");				\
      85  }
      86  
      87  
      88  #undef HAS_INIT_SECTION
      89  
      90  /* This is how we tell the assembler that two symbols have the same value.  */
      91  
      92  #define ASM_OUTPUT_DEF(FILE,NAME1,NAME2) \
      93    do { assemble_name(FILE, NAME1); 	 \
      94         fputs(" = ", FILE);		 \
      95         assemble_name(FILE, NAME2);	 \
      96         fputc('\n', FILE); } while (0)
      97  
      98  /* We always use gas here, so we don't worry about ECOFF assembler
      99     problems.  */
     100  #undef TARGET_GAS
     101  #define TARGET_GAS	1
     102  
     103  /* Default to pcc-struct-return, because this is the ELF abi and
     104     we don't care about compatibility with older gcc versions.  */
     105  #define DEFAULT_PCC_STRUCT_RETURN 1
     106  
     107  #define HAVE_ENABLE_EXECUTE_STACK