gcc/config/mips/sdemtk.h

   1 /* Definitions of target machine for GNU compiler.
   2    MIPS SDE version, for use with the SDE C library rather than newlib.
   3    Copyright (C) 2007, 2008, 2009
   4    Free Software Foundation, 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 #define TARGET_OS_CPP_BUILTINS()                        \
  23   do                                                    \
  24     {                                                   \
  25       builtin_assert ("system=sde");                    \
  26       builtin_assert ("system=posix");                  \
  27       builtin_define ("__SDE_MIPS__");                  \
  28                                                         \
  29       /* Deprecated: use __mips_isa_rev >= 2.  */       \
  30       if (ISA_MIPS32R2)                                 \
  31         builtin_define ("__mipsr2");                    \
  32                                                         \
  33       /* Deprecated: use __mips_fpr == 64.  */          \
  34       if (TARGET_FLOAT64)                               \
  35         builtin_define ("__mipsfp64");                  \
  36                                                         \
  37       if (TARGET_NO_FLOAT)                              \
  38         {                                               \
  39           builtin_define ("__NO_FLOAT");                \
  40           builtin_define ("__mips_no_float");           \
  41         }                                               \
  42       else if (TARGET_SOFT_FLOAT_ABI)                   \
  43         builtin_define ("__SOFT_FLOAT");                \
  44       else if (TARGET_SINGLE_FLOAT)                     \
  45         builtin_define ("__SINGLE_FLOAT");              \
  46                                                         \
  47       if (TARGET_BIG_ENDIAN)                            \
  48         {                                               \
  49           builtin_assert ("endian=big");                \
  50           builtin_assert ("cpu=mipseb");                \
  51         }                                               \
  52       else                                              \
  53         {                                               \
  54           builtin_assert ("endian=little");             \
  55           builtin_assert ("cpu=mipsel");                \
  56         }                                               \
  57     }                                                   \
  58   while (0)
  59
  60 #undef SUBTARGET_OVERRIDE_OPTIONS
  61 #define SUBTARGET_OVERRIDE_OPTIONS                      \
  62   do                                                    \
  63     {                                                   \
  64       if (TARGET_NO_FLOAT)                              \
  65         {                                               \
  66           target_flags |= MASK_SOFT_FLOAT_ABI;          \
  67           target_flags_explicit |= MASK_SOFT_FLOAT_ABI; \
  68         }                                               \
  69     }                                                   \
  70   while (0)
  71
  72 /* For __clear_cache in libgcc2.c.  */
  73 #ifdef IN_LIBGCC2
  74 extern void mips_sync_icache (void *beg, unsigned long len);
  75 #undef CLEAR_INSN_CACHE
  76 #define CLEAR_INSN_CACHE(beg, end) \
  77   mips_sync_icache (beg, end - beg)
  78 #endif
  79
  80 /* For mips_cache_flush_func in mips.opt.  */
  81 #undef CACHE_FLUSH_FUNC
  82 #define CACHE_FLUSH_FUNC "mips_sync_icache"
  83
  84 /* For inline code which needs to sync the icache and dcache,
  85    noting that the SDE library takes arguments (address, size).  */
  86 #undef MIPS_ICACHE_SYNC
  87 #define MIPS_ICACHE_SYNC(ADDR, SIZE)                                    \
  88   emit_library_call (gen_rtx_SYMBOL_REF (Pmode, mips_cache_flush_func), \
  89                      LCT_NORMAL, VOIDmode, 2, ADDR, Pmode,              \
  90                      SIZE, TYPE_MODE (sizetype))
  91
  92 /* This version of _mcount does not pop 2 words from the stack.  */
  93 #undef FUNCTION_PROFILER
  94 #define FUNCTION_PROFILER(FILE, LABELNO)                                \
  95   {                                                                     \
  96     mips_push_asm_switch (&mips_noat);                                  \
  97     /* _mcount treats $2 as the static chain register.  */              \
  98     if (cfun->static_chain_decl != NULL)                                \
  99       fprintf (FILE, "\tmove\t%s,%s\n", reg_names[2],                   \
 100                reg_names[STATIC_CHAIN_REGNUM]);                         \
 101     /* MIPS16 code passes saved $ra in $v1 instead of $at.  */          \
 102     fprintf (FILE, "\tmove\t%s,%s\n",                                   \
 103              reg_names[GP_REG_FIRST + (TARGET_MIPS16 ? 3 : 1)],         \
 104              reg_names[RETURN_ADDR_REGNUM]);                            \
 105     fprintf (FILE, "\tjal\t_mcount\n");                                 \
 106     mips_pop_asm_switch (&mips_noat);                                   \
 107     /* _mcount treats $2 as the static chain register.  */              \
 108     if (cfun->static_chain_decl != NULL)                                \
 109       fprintf (FILE, "\tmove\t%s,%s\n", reg_names[STATIC_CHAIN_REGNUM], \
 110                reg_names[2]);                                           \
 111   }
 112
 113 /* ...nor does the call sequence preserve $31.  */
 114 #undef MIPS_SAVE_REG_FOR_PROFILING_P
 115 #define MIPS_SAVE_REG_FOR_PROFILING_P(REGNO) ((REGNO) == RETURN_ADDR_REGNUM)