gcc/config/sh/netbsd-elf.h

   1 /* Definitions for SH running NetBSD using ELF
   2    Copyright (C) 2002, 2003, 2004, 2005 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 2, 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 this program; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  20 Boston, MA 02110-1301, USA.  */
  21
  22 /* Run-time Target Specification.  */
  23 #if TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
  24 #define TARGET_VERSION_ENDIAN "le"
  25 #else
  26 #define TARGET_VERSION_ENDIAN ""
  27 #endif
  28
  29 #if TARGET_CPU_DEFAULT & MASK_SH5
  30 #if TARGET_CPU_DEFAULT & MASK_SH_E
  31 #define TARGET_VERSION_CPU "sh5"
  32 #else
  33 #define TARGET_VERSION_CPU "sh64"
  34 #endif /* MASK_SH_E */
  35 #else
  36 #define TARGET_VERSION_CPU "sh"
  37 #endif /* MASK_SH5 */
  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       builtin_define ("__NO_LEADING_UNDERSCORES__");                    \
  56     }                                                                   \
  57   while (0)
  58
  59 /* Provide a LINK_SPEC appropriate for a NetBSD/sh ELF target.
  60    We use the SH_LINK_SPEC from sh/sh.h, and define the appropriate
  61    SUBTARGET_LINK_SPEC that pulls in what we need from a generic
  62    NetBSD ELF LINK_SPEC.  */
  63
  64 /* LINK_EMUL_PREFIX from sh/elf.h */
  65
  66 #undef SUBTARGET_LINK_EMUL_SUFFIX
  67 #define SUBTARGET_LINK_EMUL_SUFFIX "_nbsd"
  68
  69 #undef SUBTARGET_LINK_SPEC
  70 #define SUBTARGET_LINK_SPEC NETBSD_LINK_SPEC_ELF
  71
  72 #undef LINK_SPEC
  73 #define LINK_SPEC SH_LINK_SPEC
  74
  75 #define NETBSD_ENTRY_POINT "__start"
  76
  77 /* Provide a CPP_SPEC appropriate for NetBSD.  */
  78 #undef SUBTARGET_CPP_SPEC
  79 #define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
  80
  81 #undef TARGET_DEFAULT
  82 #define TARGET_DEFAULT \
  83   (TARGET_CPU_DEFAULT | MASK_USERMODE | TARGET_ENDIAN_DEFAULT)
  84
  85 /* Define because we use the label and we do not need them.  */
  86 #define NO_PROFILE_COUNTERS 1
  87
  88 #undef FUNCTION_PROFILER
  89 #define FUNCTION_PROFILER(STREAM,LABELNO)                               \
  90 do                                                                      \
  91   {                                                                     \
  92     if (TARGET_SHMEDIA32 || TARGET_SHMEDIA64)                           \
  93       {                                                                 \
  94         /* FIXME */                                                     \
  95         sorry ("unimplemented-shmedia profiling");                      \
  96       }                                                                 \
  97     else                                                                \
  98       {                                                                 \
  99         fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n",                       \
 100                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 101         fprintf((STREAM), "\tmova\t%sLP%dr,r0\n",                       \
 102                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 103         fprintf((STREAM), "\tjmp\t@r1\n");                              \
 104         fprintf((STREAM), "\tnop\n");                                   \
 105         fprintf((STREAM), "\t.align\t2\n");                             \
 106         fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n",                 \
 107                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
 108         fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO)); \
 109       }                                                                 \
 110   }                                                                     \
 111 while (0)
 112
 113 /* Since libgcc is compiled with -fpic for this target, we can't use
 114    __sdivsi3_1 as the division strategy for -O0 and -Os.  */
 115 #undef SH_DIV_STRATEGY_DEFAULT
 116 #define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2
 117 #undef SH_DIV_STR_FOR_SIZE
 118 #define SH_DIV_STR_FOR_SIZE "call2"