vxsim.h

linux下的gcc编译器

/* Definitions of target machine for GNU compiler, for SPARC VxSim
   Copyright 1996 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.

GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (sparc VxSim)"); 

/* Supposedly the same as vanilla sparc svr4, except for the stuff below: */

#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
 "-DCPU=SIMSPARCSOLARIS -D__vxworks -D__vxworks__ -Dsparc -D__svr4__ -D__SVR4 \
  -Asystem=embedded -Asystem=svr4 -Acpu=sparc -Amachine=sparc\
  -D__GCC_NEW_VARARGS__"

#undef CPP_SPEC
#define CPP_SPEC ""

#undef CC1_SPEC
#define CC1_SPEC "-fno-builtin %{sun4:} %{target:}"

/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
   It's safe to pass -s always, even if -g is not used.  */
#undef ASM_SPEC
#define ASM_SPEC \
  "%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
   %{fpic:-K PIC} %{fPIC:-K PIC}"

/* However it appears that Solaris 2.0 uses the same reg numbering as
   the old BSD-style system did.  */

#undef DBX_REGISTER_NUMBER
/* Same as sparc.h */
#define DBX_REGISTER_NUMBER(REGNO) (REGNO)

/* We use stabs-in-elf for debugging, because that is what the native
   toolchain uses.  */
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG

/* The Solaris 2 assembler uses .skip, not .zero, so put this back.  */
#undef ASM_OUTPUT_SKIP
#define ASM_OUTPUT_SKIP(FILE,SIZE)  \
  fprintf (FILE, "\t.skip %u\n", (SIZE))

#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)		\
do {									\
  fputs ("\t.local\t", (FILE));		\
  assemble_name ((FILE), (NAME));					\
  putc ('\n', (FILE));							\
  ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN);			\
} while (0)

#undef COMMON_ASM_OP
#define COMMON_ASM_OP "\t.common\t"

#undef  LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX  "."

/* This is how to output a definition of an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.  */

#undef  ASM_OUTPUT_INTERNAL_LABEL
#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)	\
  fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)

/* This is how to output a reference to an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.  */

#undef  ASM_OUTPUT_INTERNAL_LABELREF
#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM)	\
  fprintf (FILE, ".L%s%d", PREFIX, NUM)

/* This is how to store into the string LABEL
   the symbol_ref name of an internal numbered label where
   PREFIX is the class of label and NUM is the number within the class.
   This is suitable for output with `assemble_name'.  */

#undef  ASM_GENERATE_INTERNAL_LABEL
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)	\
  sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))



#undef LIB_SPEC
#define LIB_SPEC ""

#undef STARTFILE_SPEC
#define STARTFILE_SPEC ""

#undef  ENDFILE_SPEC
#define ENDFILE_SPEC ""

#undef LINK_SPEC
#define LINK_SPEC "-r"

/* This defines which switch letters take arguments.
   It is as in svr4.h but with -R added.  */

#undef SWITCH_TAKES_ARG
#define SWITCH_TAKES_ARG(CHAR) \
  (   (CHAR) == 'D' \
   || (CHAR) == 'U' \
   || (CHAR) == 'o' \
   || (CHAR) == 'e' \
   || (CHAR) == 'u' \
   || (CHAR) == 'I' \
   || (CHAR) == 'm' \
   || (CHAR) == 'L' \
   || (CHAR) == 'R' \
   || (CHAR) == 'A' \
   || (CHAR) == 'h' \
   || (CHAR) == 'z')

/* ??? This does not work in SunOS 4.x, so it is not enabled in sparc.h.
   Instead, it is enabled here, because it does work under Solaris.  */
/* Define for support of TFmode long double.
   SPARC ABI says that long double is 4 words.  */
#define LONG_DOUBLE_TYPE_SIZE 64