gcc/config/sh/netbsd-elf.h

   1 /* Definitions for SH running NetBSD using ELF
   2    Copyright (C) 2002 Free Software Foundation, Inc.
   3    Contributed by Wasabi Systems, Inc.
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC 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 2, or (at your option)
  10 any later version.
  11
  12 GNU CC 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 this program; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* Run-time Target Specification.  */
  23 #if TARGET_ENDIAN_DEFAULT == LITTLE_ENDIAN_BIT
  24 #define TARGET_VERSION_ENDIAN "le"
  25 #else
  26 #define TARGET_VERSION_ENDIAN ""
  27 #endif
  28
  29 #if TARGET_CPU_DEFAULT & SH5_BIT
  30 #if TARGET_CPU_DEFAULT & SH3E_BIT
  31 #define TARGET_VERSION_CPU "sh5"
  32 #else
  33 #define TARGET_VERSION_CPU "sh64"
  34 #endif /* SH3E_BIT */
  35 #else
  36 #define TARGET_VERSION_CPU "sh"
  37 #endif /* SH5_BIT */
  38
  39 #undef TARGET_VERSION
  40 #define TARGET_VERSION  fprintf (stderr, " (NetBSD/%s%s ELF)",          \
  41                                  TARGET_VERSION_CPU, TARGET_VERSION_ENDIAN)
  42
  43
  44 /* Extra specs needed for NetBSD SuperH ELF targets.  */
  45
  46 #undef SUBTARGET_EXTRA_SPECS
  47 #define SUBTARGET_EXTRA_SPECS                                           \
  48   { "netbsd_entry_point", NETBSD_ENTRY_POINT },
  49
  50
  51 #define TARGET_OS_CPP_BUILTINS()                                        \
  52   do                                                                    \
  53     {                                                                   \
  54       NETBSD_OS_CPP_BUILTINS_ELF();                                     \
  55       if (TARGET_SHMEDIA64)                                             \
  56         NETBSD_OS_CPP_BUILTINS_LP64();                                  \
  57       builtin_define ("__NO_LEADING_UNDERSCORES__");                    \
  58     }                                                                   \
  59   while (0)
  60
  61 /* Provide a LINK_SPEC appropriate for a NetBSD/sh ELF target.
  62    We use the SH_LINK_SPEC from sh/sh.h, and define the appropriate
  63    SUBTARGET_LINK_SPEC that pulls in what we need from a generic
  64    NetBSD ELF LINK_SPEC.  */
  65
  66 /* LINK_EMUL_PREFIX from sh/elf.h */
  67
  68 #undef LINK_DEFAULT_CPU_EMUL
  69 #if TARGET_CPU_DEFAULT & SH5_BIT
  70 #if TARGET_CPU_DEFAULT & SH3E_BIT
  71 #define LINK_DEFAULT_CPU_EMUL "32"
  72 #else
  73 #define LINK_DEFAULT_CPU_EMUL "64"
  74 #endif /* SH3E_BIT */
  75 #else
  76 #define LINK_DEFAULT_CPU_EMUL ""
  77 #endif /* SH5_BIT */
  78
  79 #undef SUBTARGET_LINK_EMUL_SUFFIX
  80 #define SUBTARGET_LINK_EMUL_SUFFIX "_nbsd"
  81
  82 #undef SUBTARGET_LINK_SPEC
  83 #define SUBTARGET_LINK_SPEC NETBSD_LINK_SPEC_ELF
  84
  85 #undef LINK_SPEC
  86 #define LINK_SPEC SH_LINK_SPEC
  87
  88 #define NETBSD_ENTRY_POINT "__start"
  89
  90 /* Provide a CPP_SPEC appropriate for NetBSD.  */
  91 #undef SUBTARGET_CPP_SPEC
  92 #define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
  93
  94 #undef TARGET_DEFAULT
  95 #define TARGET_DEFAULT \
  96   (TARGET_CPU_DEFAULT | USERMODE_BIT | TARGET_ENDIAN_DEFAULT)
  97
  98
  99 #undef FUNCTION_PROFILER
 100 #define FUNCTION_PROFILER(STREAM,LABELNO)                               \
 101 do                                                                      \
 102   {                                                                     \
 103     if (TARGET_SHMEDIA32)                                               \
 104       {                                                                 \
 105         /* FIXME */                                                     \
 106         abort ();                                                       \
 107       }                                                                 \
 108     else if (TARGET_SHMEDIA64)                                          \
 109       {                                                                 \
 110         /* FIXME */                                                     \
 111         abort ();                                                       \
 112       }                                                                 \
 113     else                                                                \
 114       {                                                                 \
 115         fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n",                       \
 116                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 117         fprintf((STREAM), "\tmova\t%sLP%dr,r0\n",                       \
 118                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 119         fprintf((STREAM), "\tjmp\t@r1\n");                              \
 120         fprintf((STREAM), "\tnop\n");                                   \
 121         fprintf((STREAM), "\t.align\t2\n");                             \
 122         fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n",                 \
 123                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 124         fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO)); \
 125       }                                                                 \
 126   }                                                                     \
 127 while (0)