sol2.h

来自「gcc3.2.1源代码」· C头文件 代码 · 共 163 行

/* Target definitions for GNU compiler for Intel 80386 running Solaris 2
   Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
   Free Software Foundation, Inc.
   Contributed by Fred Fish ([e-mail]).

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.  */


/* 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

#if ! GAS_REJECTS_MINUS_S

/*
  Changed from config/svr4.h in the following ways:

  - Removed -Yd (neither the sun bundled assembler nor gas accept it).
  - Added "-s" so that stabs are not discarded.
*/

#undef ASM_SPEC
#define ASM_SPEC \
  "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s"

#define CMOV_SUN_AS_SYNTAX 1

#else /* GAS_REJECTS_MINUS_S */

/* Same as above, except for -s, unsupported by GNU as.  */
#undef ASM_SPEC
#define ASM_SPEC \
  "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*}"

#endif /* GAS_REJECTS_MINUS_S */

/* The Solaris 2.0 x86 linker botches alignment of code sections.
   It tries to align to a 16 byte boundary by padding with 0x00000090
   ints, rather than 0x90 bytes (nop).  This generates trash in the
   ".init" section since the contribution from crtbegin.o is only 7
   bytes.  The linker pads it to 16 bytes with a single 0x90 byte, and
   two 0x00000090 ints, which generates a segmentation violation when
   executed.  This macro forces the assembler to do the padding, since
   it knows what it is doing.  */
#define FORCE_CODE_SECTION_ALIGN  asm(ALIGN_ASM_OP "16");

/* Select a format to encode pointers in exception handling data.  CODE
   is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
   true if the symbol may be affected by dynamic relocations.  */
#undef ASM_PREFERRED_EH_DATA_FORMAT
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)			\
  (flag_pic ? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_datarel	\
   : DW_EH_PE_absptr)

/* Solaris 2/Intel uses a wint_t different from the default, as on SPARC.  */
#undef	WINT_TYPE
#define	WINT_TYPE "long int"

#undef	WINT_TYPE_SIZE
#define	WINT_TYPE_SIZE BITS_PER_WORD

#define HANDLE_PRAGMA_REDEFINE_EXTNAME 1

#undef CPP_PREDEFINES
#define CPP_PREDEFINES \
  "-Dunix -D__svr4__ -D__SVR4 -Dsun -D__PRAGMA_REDEFINE_EXTNAME -Asystem=svr4"

/* Solaris 2/Intel as chokes on #line directives.  */
#undef CPP_SPEC
#define CPP_SPEC \
  "%{.S:-P} \
   %(cpp_cpu) \
   %{pthreads:-D_REENTRANT -D_PTHREADS} \
   %{!pthreads:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}} \
   %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude}"

/* For C++ we need to add some additional macro definitions required
   by the C++ standard library.  */
#define CPLUSPLUS_CPP_SPEC "\
-D_XOPEN_SOURCE=500 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 \
-D__EXTENSIONS__ \
%(cpp) \
"

#undef LIB_SPEC
#define LIB_SPEC \
  "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
   %{!shared:\
     %{!symbolic:\
       %{pthreads:-lpthread} \
       %{!pthreads:%{threads:-lthread}} \
       -lc}}"

#undef  ENDFILE_SPEC
#define ENDFILE_SPEC "crtend.o%s %{pg:crtn.o%s}%{!pg:crtn.o%s}"

#undef	STARTFILE_SPEC
#define STARTFILE_SPEC "%{!shared: \
			 %{!symbolic: \
			  %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}\
			%{pg:gmon.o%s} crti.o%s \
			%{ansi:values-Xc.o%s} \
			%{!ansi: \
			 %{traditional:values-Xt.o%s} \
			 %{!traditional:values-Xa.o%s}} \
 			crtbegin.o%s"
  
/* This should be the same as in svr4.h, except with -R added.  */
#undef LINK_SPEC
#define LINK_SPEC \
  "%{h*} %{v:-V} \
   %{b} %{Wl,*:%*} \
   %{static:-dn -Bstatic} \
   %{shared:-G -dy %{!mimpure-text:-z text}} \
   %{symbolic:-Bsymbolic -G -dy -z text} \
   %{G:-G} \
   %{YP,*} \
   %{R*} \
   %{compat-bsd: \
     %{!YP,*:%{pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
             %{!pg:%{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
                   %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \
             -R /usr/ucblib} \
   %{!compat-bsd: \
     %{!YP,*:%{pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
             %{!pg:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
                   %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}} \
   %{Qy:} %{!Qn:-Qy}"

/* 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) \
  (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
   || (CHAR) == 'R' \
   || (CHAR) == 'h' \
   || (CHAR) == 'z')

#define STDC_0_IN_SYSTEM_HEADERS 1

#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."

/* The Solaris assembler does not support .quad.  Do not use it.  */
#undef ASM_QUAD