pa-hpux11.h

linux下的gcc编译器

/* Definitions of target machine for GNU compiler, for HP PA-RISC
   Copyright (C) 1998, 1999, 2000, 2002 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.  */

/* GCC always defines __STDC__.  HP C++ compilers don't define it.  This
   causes trouble when sys/stdsyms.h is included.  As a work around,
   we define __STDC_EXT__.  A similar situation exists with respect to
   the definition of __cplusplus.  We define _INCLUDE_LONGLONG
   to prevent nlist.h from defining __STDC_32_MODE__ (no longlong
   support).  */
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS()				\
  do								\
    {								\
	builtin_assert ("system=hpux");				\
	builtin_assert ("system=unix");				\
	builtin_define ("__hp9000s800");			\
	builtin_define ("__hp9000s800__");			\
	builtin_define ("__hpux");				\
	builtin_define ("__hpux__");				\
	builtin_define ("__unix");				\
	builtin_define ("__unix__");				\
	if (c_language == clk_cplusplus)			\
	  {							\
	    builtin_define ("_HPUX_SOURCE");			\
	    builtin_define ("_INCLUDE_LONGLONG");		\
	    builtin_define ("__STDC_EXT__");			\
	  }							\
	else							\
	  {							\
	    if (!flag_iso)					\
	      {							\
		builtin_define ("_HPUX_SOURCE");		\
		if (preprocessing_trad_p ())			\
		  {						\
		    builtin_define ("hp9000s800");		\
		    builtin_define ("hppa");			\
		    builtin_define ("hpux");			\
		    builtin_define ("unix");			\
		    builtin_define ("__CLASSIC_C__");		\
		    builtin_define ("_PWB");			\
		    builtin_define ("PWB");			\
		  }						\
		else						\
		  builtin_define ("__STDC_EXT__");		\
	      }							\
	    if (!TARGET_64BIT)					\
	      builtin_define ("_ILP32");			\
	  }							\
	if (TARGET_SIO)						\
	  builtin_define ("_SIO");				\
	else							\
	  {							\
	    builtin_define ("__hp9000s700");			\
	    builtin_define ("__hp9000s700__");			\
	    builtin_define ("_WSIO");				\
	  }							\
    }								\
  while (0)

#undef CPP_SPEC
#define CPP_SPEC \
  "%{mt|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
/* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD.  These
   affect only aCC's C++ library (Rogue Wave-derived) which we do not
   use, and they violate the user's name space.  */

/* We can debug dynamically linked executables on hpux11; we also
   want dereferencing of a NULL pointer to cause a SEGV.  */
#undef LINK_SPEC
#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & 1)
#define LINK_SPEC \
  "%{!mpa-risc-1-0:%{!shared:-L/lib/pa1.1 -L/usr/lib/pa1.1 }} -z\
   %{mlinker-opt:-O} %{!shared:-u main -u __gcc_plt_call}\
   %{static:-a archive} %{shared:-b}"
#else
#define LINK_SPEC \
  "-z %{mlinker-opt:-O} %{!shared:-u main -u __gcc_plt_call}\
   %{static:-a archive} %{shared:-b}"
#endif

/* hpux 11 has posix threads.  */
#undef LIB_SPEC
#define LIB_SPEC \
  "%{!shared:\
     %{mt|pthread:-lpthread}     \
     %{p|pg:-L/usr/lib/libp} -lc \
     %{static:%{!nolibdld:-a shared -ldld -a archive -lc}}}"

/* Under hpux11, the normal location of the `ld' and `as' programs is the
   /usr/ccs/bin directory.  */

#ifndef CROSS_COMPILE
#undef MD_EXEC_PREFIX
#define MD_EXEC_PREFIX "/usr/ccs/bin/"
#endif

/* Under hpux11 the normal location of the various *crt*.o files is
   the /usr/ccs/lib directory.  However, the profiling files are in
   /opt/langtools/lib.  */

#ifndef CROSS_COMPILE
#undef MD_STARTFILE_PREFIX
#define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
#define MD_STARTFILE_PREFIX_1 "/opt/langtools/lib/"
#endif

/* hpux11 has the new HP assembler.  It's still lousy, but it's a whole lot
   better than the assembler shipped with older versions of hpux.  */
#undef NEW_HP_ASSEMBLER
#define NEW_HP_ASSEMBLER 1

/* Make GCC agree with types.h.  */
#undef SIZE_TYPE
#undef PTRDIFF_TYPE

#define SIZE_TYPE "long unsigned int"
#define PTRDIFF_TYPE "long int"

/* HP-UX 11.0 and above provides initialization and finalization function
   support from linker command line.  We don't need to invoke __main to run
   constructors.  We also don't need chatr to determine the dependencies of
   dynamically linked executables and shared libraries.  */
#undef LDD_SUFFIX
#undef PARSE_LDD_OUTPUT
#undef HAS_INIT_SECTION
#define HAS_INIT_SECTION 1
#undef LD_INIT_SWITCH
#define LD_INIT_SWITCH "+init"
#undef LD_FINI_SWITCH
#define LD_FINI_SWITCH "+fini"

/* The HP-UX 11.X SOM linker (ld32) can successfully link shared libraries
   with secondary definition (weak) symbols.  */
#undef TARGET_SOM_SDEF
#define TARGET_SOM_SDEF 1