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, 2010
   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         builtin_define ("__NO_FLOAT");                  \
  39       else if (TARGET_SOFT_FLOAT_ABI)                   \
  40         builtin_define ("__SOFT_FLOAT");                \
  41       else if (TARGET_SINGLE_FLOAT)                     \
  42         builtin_define ("__SINGLE_FLOAT");              \
  43                                                         \
  44       if (TARGET_BIG_ENDIAN)                            \
  45         {                                               \
  46           builtin_assert ("endian=big");                \
  47           builtin_assert ("cpu=mipseb");                \
  48         }                                               \
  49       else                                              \
  50         {                                               \
  51           builtin_assert ("endian=little");             \
  52           builtin_assert ("cpu=mipsel");                \
  53         }                                               \
  54     }                                                   \
  55   while (0)
  56
  57 /* For __clear_cache in libgcc2.c.  */
  58 #ifdef IN_LIBGCC2
  59 extern void mips_sync_icache (void *beg, unsigned long len);
  60 #undef CLEAR_INSN_CACHE
  61 #define CLEAR_INSN_CACHE(beg, end) \
  62   mips_sync_icache (beg, end - beg)
  63 #endif
  64
  65 /* For mips_cache_flush_func in mips.opt.  */
  66 #undef CACHE_FLUSH_FUNC
  67 #define CACHE_FLUSH_FUNC "mips_sync_icache"
  68
  69 /* For inline code which needs to sync the icache and dcache,
  70    noting that the SDE library takes arguments (address, size).  */
  71 #undef MIPS_ICACHE_SYNC
  72 #define MIPS_ICACHE_SYNC(ADDR, SIZE)                                    \
  73   emit_library_call (gen_rtx_SYMBOL_REF (Pmode, mips_cache_flush_func), \
  74                      LCT_NORMAL, VOIDmode, 2, ADDR, Pmode,              \
  75                      SIZE, TYPE_MODE (sizetype))
  76
  77 /* This version of _mcount does not pop 2 words from the stack.  */
  78 #undef FUNCTION_PROFILER
  79 #define FUNCTION_PROFILER(FILE, LABELNO)                                \
  80   {                                                                     \
  81     mips_push_asm_switch (&mips_noat);                                  \
  82     /* _mcount treats $2 as the static chain register.  */              \
  83     if (cfun->static_chain_decl != NULL)                                \
  84       fprintf (FILE, "\tmove\t%s,%s\n", reg_names[2],                   \
  85                reg_names[STATIC_CHAIN_REGNUM]);                         \
  86     /* MIPS16 code passes saved $ra in $v1 instead of $at.  */          \
  87     fprintf (FILE, "\tmove\t%s,%s\n",                                   \
  88              reg_names[GP_REG_FIRST + (TARGET_MIPS16 ? 3 : 1)],         \
  89              reg_names[RETURN_ADDR_REGNUM]);                            \
  90     fprintf (FILE, "\tjal\t_mcount\n");                                 \
  91     mips_pop_asm_switch (&mips_noat);                                   \
  92     /* _mcount treats $2 as the static chain register.  */              \
  93     if (cfun->static_chain_decl != NULL)                                \
  94       fprintf (FILE, "\tmove\t%s,%s\n", reg_names[STATIC_CHAIN_REGNUM], \
  95                reg_names[2]);                                           \
  96   }
  97
  98 /* ...nor does the call sequence preserve $31.  */
  99 #undef MIPS_SAVE_REG_FOR_PROFILING_P
 100 #define MIPS_SAVE_REG_FOR_PROFILING_P(REGNO) ((REGNO) == RETURN_ADDR_REGNUM)
 101
 102 /* Compile in support for the -mno-float option.  */
 103 #define TARGET_SUPPORTS_NO_FLOAT 1