gcc/config/sh/netbsd-elf.h

   1 /* Definitions for SH running NetBSD using ELF
   2    Copyright (C) 2002-2015 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     if (TARGET_SHMEDIA32 || TARGET_SHMEDIA64)                           \
  71       {                                                                 \
  72         /* FIXME */                                                     \
  73         sorry ("unimplemented-shmedia profiling");                      \
  74       }                                                                 \
  75     else                                                                \
  76       {                                                                 \
  77         fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n",                       \
  78                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
  79         fprintf((STREAM), "\tmova\t%sLP%dr,r0\n",                       \
  80                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
  81         fprintf((STREAM), "\tjmp\t@r1\n");                              \
  82         fprintf((STREAM), "\tnop\n");                                   \
  83         fprintf((STREAM), "\t.align\t2\n");                             \
  84         fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n",                 \
  85                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
  86         fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO)); \
  87       }                                                                 \
  88   }                                                                     \
  89 while (0)
  90
  91 /* Since libgcc is compiled with -fpic for this target, we can't use
  92    __sdivsi3_1 as the division strategy for -O0 and -Os.  */
  93 #undef SH_DIV_STRATEGY_DEFAULT
  94 #define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2
  95 #undef SH_DIV_STR_FOR_SIZE
  96 #define SH_DIV_STR_FOR_SIZE "call2"
  97
  98 #undef SUBTARGET_OVERRIDE_OPTIONS
  99 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
 100   do                                                                    \
 101     {                                                                   \
 102       /* Set -musermode if it hasn't been specified.  */                \
 103       if (global_options_set.x_TARGET_USERMODE == 0)                    \
 104         TARGET_USERMODE = true;                                         \
 105     }                                                                   \
 106   while (0)