gcc-4_9/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) 2007-2014 Free Software Foundation, 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 #define TARGET_OS_CPP_BUILTINS()                        \
  22   do                                                    \
  23     {                                                   \
  24       builtin_assert ("system=sde");                    \
  25       builtin_assert ("system=posix");                  \
  26       builtin_define ("__SDE_MIPS__");                  \
  27                                                         \
  28       /* Deprecated: use __mips_isa_rev >= 2.  */       \
  29       if (ISA_MIPS32R2)                                 \
  30         builtin_define ("__mipsr2");                    \
  31                                                         \
  32       /* Deprecated: use __mips_fpr == 64.  */          \
  33       if (TARGET_FLOAT64)                               \
  34         builtin_define ("__mipsfp64");                  \
  35                                                         \
  36       if (TARGET_NO_FLOAT)                              \
  37         builtin_define ("__NO_FLOAT");                  \
  38       else if (TARGET_SOFT_FLOAT_ABI)                   \
  39         builtin_define ("__SOFT_FLOAT");                \
  40       else if (TARGET_SINGLE_FLOAT)                     \
  41         builtin_define ("__SINGLE_FLOAT");              \
  42                                                         \
  43       if (TARGET_BIG_ENDIAN)                            \
  44         {                                               \
  45           builtin_assert ("endian=big");                \
  46           builtin_assert ("cpu=mipseb");                \
  47         }                                               \
  48       else                                              \
  49         {                                               \
  50           builtin_assert ("endian=little");             \
  51           builtin_assert ("cpu=mipsel");                \
  52         }                                               \
  53     }                                                   \
  54   while (0)
  55
  56 /* For __clear_cache in libgcc2.c.  */
  57 #ifdef IN_LIBGCC2
  58 extern void mips_sync_icache (void *beg, unsigned long len);
  59 #undef CLEAR_INSN_CACHE
  60 #define CLEAR_INSN_CACHE(beg, end) \
  61   mips_sync_icache (beg, end - beg)
  62 #endif
  63
  64 /* For mips_cache_flush_func in mips.opt.  */
  65 #undef CACHE_FLUSH_FUNC
  66 #define CACHE_FLUSH_FUNC "mips_sync_icache"
  67
  68 /* For inline code which needs to sync the icache and dcache,
  69    noting that the SDE library takes arguments (address, size).  */
  70 #undef MIPS_ICACHE_SYNC
  71 #define MIPS_ICACHE_SYNC(ADDR, SIZE)                                    \
  72   emit_library_call (gen_rtx_SYMBOL_REF (Pmode, mips_cache_flush_func), \
  73                      LCT_NORMAL, VOIDmode, 2, ADDR, Pmode,              \
  74                      SIZE, TYPE_MODE (sizetype))
  75
  76 /* This version of _mcount does not pop 2 words from the stack.  */
  77 #undef FUNCTION_PROFILER
  78 #define FUNCTION_PROFILER(FILE, LABELNO)                                \
  79   {                                                                     \
  80     mips_push_asm_switch (&mips_noat);                                  \
  81     /* _mcount treats $2 as the static chain register.  */              \
  82     if (cfun->static_chain_decl != NULL)                                \
  83       fprintf (FILE, "\tmove\t%s,%s\n", reg_names[2],                   \
  84                reg_names[STATIC_CHAIN_REGNUM]);                         \
  85     /* MIPS16 code passes saved $ra in $v1 instead of $at.  */          \
  86     fprintf (FILE, "\tmove\t%s,%s\n",                                   \
  87              reg_names[GP_REG_FIRST + (TARGET_MIPS16 ? 3 : 1)],         \
  88              reg_names[RETURN_ADDR_REGNUM]);                            \
  89     fprintf (FILE, "\tjal\t_mcount\n");                                 \
  90     mips_pop_asm_switch (&mips_noat);                                   \
  91     /* _mcount treats $2 as the static chain register.  */              \
  92     if (cfun->static_chain_decl != NULL)                                \
  93       fprintf (FILE, "\tmove\t%s,%s\n", reg_names[STATIC_CHAIN_REGNUM], \
  94                reg_names[2]);                                           \
  95   }
  96
  97 /* ...nor does the call sequence preserve $31.  */
  98 #undef MIPS_SAVE_REG_FOR_PROFILING_P
  99 #define MIPS_SAVE_REG_FOR_PROFILING_P(REGNO) ((REGNO) == RETURN_ADDR_REGNUM)
 100
 101 /* Compile in support for the -mno-float option.  */
 102 #define TARGET_SUPPORTS_NO_FLOAT 1