1  /* Definitions for SH running NetBSD using ELF
       2     Copyright (C) 2002-2023 Free Software Foundation, Inc.
       3     Contributed by Wasabi Systems, 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  /* Run-time Target Specification.  */
      22  
      23  /* Extra specs needed for NetBSD SuperH ELF targets.  */
      24  
      25  #undef SUBTARGET_EXTRA_SPECS
      26  #define SUBTARGET_EXTRA_SPECS						\
      27    { "netbsd_entry_point", NETBSD_ENTRY_POINT },
      28  
      29  
      30  #define TARGET_OS_CPP_BUILTINS()					\
      31    do									\
      32      {									\
      33        NETBSD_OS_CPP_BUILTINS_ELF();					\
      34        builtin_define ("__NO_LEADING_UNDERSCORES__");			\
      35      }									\
      36    while (0)
      37  
      38  /* Provide a LINK_SPEC appropriate for a NetBSD/sh ELF target.
      39     We use the SH_LINK_SPEC from sh/sh.h, and define the appropriate
      40     SUBTARGET_LINK_SPEC that pulls in what we need from a generic
      41     NetBSD ELF LINK_SPEC.  */
      42  
      43  /* LINK_EMUL_PREFIX from sh/elf.h */
      44  #undef SUBTARGET_LINK_EMUL_SUFFIX
      45  #define SUBTARGET_LINK_EMUL_SUFFIX "_nbsd"
      46  
      47  #undef SUBTARGET_LINK_SPEC
      48  #define SUBTARGET_LINK_SPEC NETBSD_LINK_SPEC_ELF
      49  
      50  #undef LINK_SPEC
      51  #define LINK_SPEC SH_LINK_SPEC
      52  
      53  #define NETBSD_ENTRY_POINT "__start"
      54  
      55  /* Provide a CPP_SPEC appropriate for NetBSD.  */
      56  #undef SUBTARGET_CPP_SPEC
      57  #define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
      58  
      59  #undef TARGET_DEFAULT
      60  #define TARGET_DEFAULT \
      61    (TARGET_CPU_DEFAULT | TARGET_ENDIAN_DEFAULT)
      62  
      63  /* Define because we use the label and we do not need them.  */
      64  #define NO_PROFILE_COUNTERS 1
      65   
      66  #undef FUNCTION_PROFILER
      67  #define FUNCTION_PROFILER(STREAM,LABELNO)				\
      68  do									\
      69    {									\
      70          fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n",			\
      71                  LOCAL_LABEL_PREFIX, (LABELNO));				\
      72          fprintf((STREAM), "\tmova\t%sLP%dr,r0\n",			\
      73                  LOCAL_LABEL_PREFIX, (LABELNO));				\
      74          fprintf((STREAM), "\tjmp\t@r1\n");				\
      75          fprintf((STREAM), "\tnop\n");					\
      76          fprintf((STREAM), "\t.align\t2\n");				\
      77          fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n",			\
      78                  LOCAL_LABEL_PREFIX, (LABELNO));				\
      79          fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO));	\
      80    }									\
      81  while (0)
      82  
      83  #undef SUBTARGET_OVERRIDE_OPTIONS
      84  #define SUBTARGET_OVERRIDE_OPTIONS					\
      85    do									\
      86      {									\
      87        /* Set -musermode if it hasn't been specified.  */		\
      88        if (OPTION_SET_P (TARGET_USERMODE) == 0)			\
      89  	TARGET_USERMODE = true;						\
      90      }									\
      91    while (0)