gcc/config/sparc/sp64-elf.h

   1 /* Definitions of target machine for GCC, for SPARC64, ELF.
   2    Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2004, 2005, 2007
   3    Free Software Foundation, Inc.
   4    Contributed by Doug Evans, dje@cygnus.com.
   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 #undef TARGET_VERSION
  23 #define TARGET_VERSION fprintf (stderr, " (sparc64-elf)")
  24
  25 /* A 64 bit v9 compiler in a Medium/Anywhere code model environment.  */
  26 #undef TARGET_DEFAULT
  27 #define TARGET_DEFAULT \
  28 (MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_HARD_QUAD \
  29  + MASK_APP_REGS + MASK_FPU + MASK_STACK_BIAS + MASK_LONG_DOUBLE_128)
  30
  31 #undef SPARC_DEFAULT_CMODEL
  32 #define SPARC_DEFAULT_CMODEL CM_EMBMEDANY
  33
  34 /* Don't assume anything about the header files.  */
  35 #define NO_IMPLICIT_EXTERN_C
  36
  37 /* __svr4__ is used by the C library (FIXME) */
  38 #undef CPP_SUBTARGET_SPEC
  39 #define CPP_SUBTARGET_SPEC "-D__svr4__"
  40
  41 #undef MD_EXEC_PREFIX
  42 #undef MD_STARTFILE_PREFIX
  43
  44 #undef ASM_SPEC
  45 #define ASM_SPEC "\
  46 %{v:-V} -s %{fpic|fPIC|fpie|fPIE:-K PIC} \
  47 %{mlittle-endian:-EL} \
  48 %(asm_cpu) %(asm_arch) \
  49 "
  50
  51 /* This is taken from sol2.h.  */
  52 #undef LINK_SPEC
  53 #define LINK_SPEC "\
  54 %{v:-V} \
  55 %{mlittle-endian:-EL} \
  56 "
  57
  58 /* We need something a little simpler for the embedded environment.
  59    Profiling doesn't really work yet so we just copy the default.  */
  60 #undef STARTFILE_SPEC
  61 #define STARTFILE_SPEC "\
  62 %{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}} \
  63 crtbegin.o%s \
  64 "
  65
  66 #undef ENDFILE_SPEC
  67 #define ENDFILE_SPEC \
  68   "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
  69    crtend.o%s"
  70
  71 /* Use the default (for now).  */
  72 #undef LIB_SPEC
  73
  74 /* This defines which switch letters take arguments.
  75    It is as in svr4.h but with -R added.  */
  76 #undef SWITCH_TAKES_ARG
  77 #define SWITCH_TAKES_ARG(CHAR) \
  78   (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
  79    || (CHAR) == 'R' \
  80    || (CHAR) == 'h' \
  81    || (CHAR) == 'z')
  82
  83 #undef BYTES_BIG_ENDIAN
  84 #define BYTES_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
  85
  86 #undef WORDS_BIG_ENDIAN
  87 #define WORDS_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
  88 \f
  89 #undef  LOCAL_LABEL_PREFIX
  90 #define LOCAL_LABEL_PREFIX  "."
  91
  92 /* This is how to store into the string LABEL
  93    the symbol_ref name of an internal numbered label where
  94    PREFIX is the class of label and NUM is the number within the class.
  95    This is suitable for output with `assemble_name'.  */
  96
  97 #undef  ASM_GENERATE_INTERNAL_LABEL
  98 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
  99   sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
 100 \f
 101 /* ??? This should be 32 bits for v9 but what can we do?  */
 102 #undef WCHAR_TYPE
 103 #define WCHAR_TYPE "short unsigned int"
 104
 105 #undef WCHAR_TYPE_SIZE
 106 #define WCHAR_TYPE_SIZE 16
 107
 108 #undef LONG_DOUBLE_TYPE_SIZE
 109 #define LONG_DOUBLE_TYPE_SIZE 128