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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [config/] [rs6000/] [vxworks.h] - Blame information for rev 816

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/* Definitions of target machine for GNU compiler.  Vxworks PowerPC version.
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   Copyright (C) 1996, 2000, 2002, 2003, 2004, 2005, 2007
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   Free Software Foundation, Inc.
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   Contributed by CodeSourcery, LLC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3.  If not see
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<http://www.gnu.org/licenses/>.  */
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/* Note to future editors: VxWorks is mostly an EABI target.  We do
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   not use rs6000/eabi.h because we would have to override most of
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   it anyway.  However, if you change that file, consider making
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   analogous changes here too.  */
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (PowerPC VxWorks)");
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/* CPP predefined macros.  */
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#undef TARGET_OS_CPP_BUILTINS
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#define TARGET_OS_CPP_BUILTINS()                \
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  do                                            \
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    {                                           \
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      builtin_define ("__ppc");                 \
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      builtin_define ("__EABI__");              \
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      builtin_define ("__ELF__");               \
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      builtin_define ("__vxworks");             \
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      builtin_define ("__VXWORKS__");           \
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      if (!TARGET_SOFT_FLOAT)                   \
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        builtin_define ("__hardfp");            \
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                                                \
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      /* C89 namespace violation! */            \
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      builtin_define ("CPU_FAMILY=PPC");        \
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    }                                           \
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  while (0)
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/* Only big endian PPC is supported by VxWorks.  */
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#undef BYTES_BIG_ENDIAN
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#define BYTES_BIG_ENDIAN 1
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/* We have to kill off the entire specs set created by rs6000/sysv4.h
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   and substitute our own set.  The top level vxworks.h has done some
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   of this for us.  */
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#undef SUBTARGET_EXTRA_SPECS
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#undef CPP_SPEC
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#undef CC1_SPEC
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#undef ASM_SPEC
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#define SUBTARGET_EXTRA_SPECS /* none needed */
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/* FIXME: The only reason we allow no -mcpu switch at all is because
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   config-ml.in insists on a "." multilib. */
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#define CPP_SPEC \
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"%{!DCPU=*:               \
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   %{mcpu=403 : -DCPU=PPC403  ; \
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     mcpu=405 : -DCPU=PPC405  ; \
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     mcpu=440 : -DCPU=PPC440  ; \
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     mcpu=603 : -DCPU=PPC603  ; \
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     mcpu=604 : -DCPU=PPC604  ; \
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     mcpu=860 : -DCPU=PPC860  ; \
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     mcpu=8540: -DCPU=PPC85XX ; \
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              : -DCPU=PPC604  }}" \
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VXWORKS_ADDITIONAL_CPP_SPEC
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#define CC1_SPEC                                                \
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"%{G*} %{mno-sdata:-msdata=none} %{msdata:-msdata=default}      \
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 %{mlittle|mlittle-endian:-mstrict-align}                       \
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 %{profile: -p}         \
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 %{fvec:-maltivec} %{fvec-eabi:-maltivec -mabi=altivec}"
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#define ASM_SPEC \
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"%(asm_cpu) \
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 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
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 %{v:-v} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
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 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} -mbig"
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#undef  LIB_SPEC
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#define LIB_SPEC VXWORKS_LIB_SPEC
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#undef  LINK_SPEC
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#define LINK_SPEC VXWORKS_LINK_SPEC
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#undef  STARTFILE_SPEC
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#define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
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#undef  ENDFILE_SPEC
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#define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
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/* There is no default multilib.  */
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#undef MULTILIB_DEFAULTS
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT \
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  (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_EABI | MASK_STRICT_ALIGN)
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#undef PROCESSOR_DEFAULT
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#define PROCESSOR_DEFAULT PROCESSOR_PPC604
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/* Nor sdata, for kernel mode.  We use this in
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   SUBSUBTARGET_INITIALIZE_OPTIONS, after rs6000_rtp has been initialized.  */
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#undef SDATA_DEFAULT_SIZE
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#define SDATA_DEFAULT_SIZE (TARGET_VXWORKS_RTP ? 8 : 0)
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#undef  STACK_BOUNDARY
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#define STACK_BOUNDARY (16*BITS_PER_UNIT)
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/* Override sysv4.h, reset to the default.  */
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#undef  PREFERRED_STACK_BOUNDARY
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/* Enable SPE */
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#undef TARGET_SPE_ABI
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#undef TARGET_SPE
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#undef TARGET_E500
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#undef TARGET_ISEL
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#undef TARGET_FPRS
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#define TARGET_SPE_ABI rs6000_spe_abi
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#define TARGET_SPE rs6000_spe
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#define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540)
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#define TARGET_ISEL rs6000_isel
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#define TARGET_FPRS (!rs6000_float_gprs)
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/* Make -mcpu=8540 imply SPE.  ISEL is automatically enabled, the
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   others must be done by hand.  Handle -mrtp.  Disable -fPIC
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   for -mrtp - the VxWorks PIC model is not compatible with it.  */
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#undef SUBSUBTARGET_OVERRIDE_OPTIONS
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#define SUBSUBTARGET_OVERRIDE_OPTIONS           \
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  do {                                          \
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    if (TARGET_E500)                            \
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      {                                         \
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        rs6000_spe = 1;                         \
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        rs6000_spe_abi = 1;                     \
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        rs6000_float_gprs = 1;                  \
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      }                                         \
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                                                \
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  if (!g_switch_set)                            \
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    g_switch_value = SDATA_DEFAULT_SIZE;        \
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  VXWORKS_OVERRIDE_OPTIONS;                     \
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  } while (0)
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/* No _mcount profiling on VxWorks.  */
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO)

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