gcc/config/sh/netbsd-elf.h

   1 /* Definitions for SH running NetBSD using ELF
   2    Copyright (C) 2002, 2003, 2004, 2005, 2007, 2011
   3    Free Software Foundation, Inc.
   4    Contributed by Wasabi Systems, Inc.
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GCC is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING3.  If not see
  20 <http://www.gnu.org/licenses/>.  */
  21
  22 /* Run-time Target Specification.  */
  23
  24 /* Extra specs needed for NetBSD SuperH ELF targets.  */
  25
  26 #undef SUBTARGET_EXTRA_SPECS
  27 #define SUBTARGET_EXTRA_SPECS                                           \
  28   { "netbsd_entry_point", NETBSD_ENTRY_POINT },
  29
  30
  31 #define TARGET_OS_CPP_BUILTINS()                                        \
  32   do                                                                    \
  33     {                                                                   \
  34       NETBSD_OS_CPP_BUILTINS_ELF();                                     \
  35       builtin_define ("__NO_LEADING_UNDERSCORES__");                    \
  36     }                                                                   \
  37   while (0)
  38
  39 /* Provide a LINK_SPEC appropriate for a NetBSD/sh ELF target.
  40    We use the SH_LINK_SPEC from sh/sh.h, and define the appropriate
  41    SUBTARGET_LINK_SPEC that pulls in what we need from a generic
  42    NetBSD ELF LINK_SPEC.  */
  43
  44 /* LINK_EMUL_PREFIX from sh/elf.h */
  45
  46 #undef SUBTARGET_LINK_EMUL_SUFFIX
  47 #define SUBTARGET_LINK_EMUL_SUFFIX "_nbsd"
  48
  49 #undef SUBTARGET_LINK_SPEC
  50 #define SUBTARGET_LINK_SPEC NETBSD_LINK_SPEC_ELF
  51
  52 #undef LINK_SPEC
  53 #define LINK_SPEC SH_LINK_SPEC
  54
  55 #define NETBSD_ENTRY_POINT "__start"
  56
  57 /* Provide a CPP_SPEC appropriate for NetBSD.  */
  58 #undef SUBTARGET_CPP_SPEC
  59 #define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC
  60
  61 #undef TARGET_DEFAULT
  62 #define TARGET_DEFAULT \
  63   (TARGET_CPU_DEFAULT | MASK_USERMODE | TARGET_ENDIAN_DEFAULT)
  64
  65 /* Define because we use the label and we do not need them.  */
  66 #define NO_PROFILE_COUNTERS 1
  67
  68 #undef FUNCTION_PROFILER
  69 #define FUNCTION_PROFILER(STREAM,LABELNO)                               \
  70 do                                                                      \
  71   {                                                                     \
  72     if (TARGET_SHMEDIA32 || TARGET_SHMEDIA64)                           \
  73       {                                                                 \
  74         /* FIXME */                                                     \
  75         sorry ("unimplemented-shmedia profiling");                      \
  76       }                                                                 \
  77     else                                                                \
  78       {                                                                 \
  79         fprintf((STREAM), "\tmov.l\t%sLP%d,r1\n",                       \
  80                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
  81         fprintf((STREAM), "\tmova\t%sLP%dr,r0\n",                       \
  82                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
  83         fprintf((STREAM), "\tjmp\t@r1\n");                              \
  84         fprintf((STREAM), "\tnop\n");                                   \
  85         fprintf((STREAM), "\t.align\t2\n");                             \
  86         fprintf((STREAM), "%sLP%d:\t.long\t__mcount\n",                 \
  87                 LOCAL_LABEL_PREFIX, (LABELNO));                         \
  88         fprintf((STREAM), "%sLP%dr:\n", LOCAL_LABEL_PREFIX, (LABELNO)); \
  89       }                                                                 \
  90   }                                                                     \
  91 while (0)
  92
  93 /* Since libgcc is compiled with -fpic for this target, we can't use
  94    __sdivsi3_1 as the division strategy for -O0 and -Os.  */
  95 #undef SH_DIV_STRATEGY_DEFAULT
  96 #define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2
  97 #undef SH_DIV_STR_FOR_SIZE
  98 #define SH_DIV_STR_FOR_SIZE "call2"