gcc/config/sh/netbsd-elf.h

   1 /* Definitions for SH running NetBSD using ELF
   2    Copyright (C) 2002, 2003, 2004, 2005, 2007 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 #if TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
  23 #define TARGET_VERSION_ENDIAN "le"
  24 #else
  25 #define TARGET_VERSION_ENDIAN ""
  26 #endif
  27
  28 #if TARGET_CPU_DEFAULT & MASK_SH5
  29 #if TARGET_CPU_DEFAULT & MASK_SH_E
  30 #define TARGET_VERSION_CPU "sh5"
  31 #else
  32 #define TARGET_VERSION_CPU "sh64"
  33 #endif /* MASK_SH_E */
  34 #else
  35 #define TARGET_VERSION_CPU "sh"
  36 #endif /* MASK_SH5 */
  37
  38 #undef TARGET_VERSION
  39 #define TARGET_VERSION  fprintf (stderr, " (NetBSD/%s%s ELF)",          \
  40                                  TARGET_VERSION_CPU, TARGET_VERSION_ENDIAN)
  41
  42
  43 /* Extra specs needed for NetBSD SuperH ELF targets.  */
  44
  45 #undef SUBTARGET_EXTRA_SPECS
  46 #define SUBTARGET_EXTRA_SPECS                                           \
  47   { "netbsd_entry_point", NETBSD_ENTRY_POINT },
  48
  49
  50 #define TARGET_OS_CPP_BUILTINS()                                        \
  51   do                                                                    \
  52     {                                                                   \
  53       NETBSD_OS_CPP_BUILTINS_ELF();                                     \
  54       builtin_define ("__NO_LEADING_UNDERSCORES__");                    \
  55     }                                                                   \
  56   while (0)
  57
  58 /* Provide a LINK_SPEC appropriate for a NetBSD/sh ELF target.
  59    We use the SH_LINK_SPEC from sh/sh.h, and define the appropriate
  60    SUBTARGET_LINK_SPEC that pulls in what we need from a generic
  61    NetBSD ELF LINK_SPEC.  */
  62
  63 /* LINK_EMUL_PREFIX from sh/elf.h */
  64
  65 #undef SUBTARGET_LINK_EMUL_SUFFIX
  66 #define SUBTARGET_LINK_EMUL_SUFFIX "_nbsd"
  67
  68 #undef SUBTARGET_LINK_SPEC
  69 #define SUBTARGET_LINK_SPEC NETBSD_LINK_SPEC_ELF
  70
  71 #undef LINK_SPEC
  72 #define LINK_SPEC SH_LINK_SPEC
  73
  74 #define NETBSD_ENTRY_POINT "__start"
  75
  76 /* Provide a CPP_SPEC appropriate for NetBSD.  */
  77 #undef SUBTARGET_CPP_SPEC
  78 #define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
  79
  80 #undef TARGET_DEFAULT
  81 #define TARGET_DEFAULT \
  82   (TARGET_CPU_DEFAULT | MASK_USERMODE | TARGET_ENDIAN_DEFAULT)
  83
  84 /* Define because we use the label and we do not need them.  */
  85 #define NO_PROFILE_COUNTERS 1
  86
  87 #undef FUNCTION_PROFILER
  88 #define FUNCTION_PROFILER(STREAM,LABELNO)                               \
  89 do                                                                      \
  90   {                                                                     \
  91     if (TARGET_SHMEDIA32 || TARGET_SHMEDIA64)                           \
  92       {                                                                 \
  93         /* FIXME */                                                     \
  94         sorry ("unimplemented-shmedia profiling");                      \
  95       }                                                                 \
  96     else                                                                \
  97       {                                                                 \
  98         fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n",                       \
  99                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 100         fprintf((STREAM), "\tmova\t%sLP%dr,r0\n",                       \
 101                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 102         fprintf((STREAM), "\tjmp\t@r1\n");                              \
 103         fprintf((STREAM), "\tnop\n");                                   \
 104         fprintf((STREAM), "\t.align\t2\n");                             \
 105         fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n",                 \
 106                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 107         fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO)); \
 108       }                                                                 \
 109   }                                                                     \
 110 while (0)
 111
 112 /* Since libgcc is compiled with -fpic for this target, we can't use
 113    __sdivsi3_1 as the division strategy for -O0 and -Os.  */
 114 #undef SH_DIV_STRATEGY_DEFAULT
 115 #define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2
 116 #undef SH_DIV_STR_FOR_SIZE
 117 #define SH_DIV_STR_FOR_SIZE "call2"