gcc/config/i386/sol2.h

   1 /* Target definitions for GNU compiler for Intel 80386 running Solaris 2
   2    Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
   3    Free Software Foundation, Inc.
   4    Contributed by Fred Fish (fnf@cygnus.com).
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC 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 2, or (at your option)
  11 any later version.
  12
  13 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23
  24 /* We use stabs-in-elf for debugging, because that is what the native
  25    toolchain uses.  */
  26 #undef PREFERRED_DEBUGGING_TYPE
  27 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  28
  29 #if ! GAS_REJECTS_MINUS_S
  30
  31 /*
  32   Changed from config/svr4.h in the following ways:
  33
  34   - Removed -Yd (neither the sun bundled assembler nor gas accept it).
  35   - Added "-s" so that stabs are not discarded.
  36 */
  37
  38 #undef ASM_SPEC
  39 #define ASM_SPEC \
  40   "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s"
  41
  42 #else /* GAS_REJECTS_MINUS_S */
  43
  44 /* Same as above, except for -s, unsupported by GNU as.  */
  45 #undef ASM_SPEC
  46 #define ASM_SPEC \
  47   "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*}"
  48
  49 #endif /* GAS_REJECTS_MINUS_S */
  50
  51 /* The Solaris 2.0 x86 linker botches alignment of code sections.
  52    It tries to align to a 16 byte boundary by padding with 0x00000090
  53    ints, rather than 0x90 bytes (nop).  This generates trash in the
  54    ".init" section since the contribution from crtbegin.o is only 7
  55    bytes.  The linker pads it to 16 bytes with a single 0x90 byte, and
  56    two 0x00000090 ints, which generates a segmentation violation when
  57    executed.  This macro forces the assembler to do the padding, since
  58    it knows what it is doing.  */
  59 #define FORCE_CODE_SECTION_ALIGN  asm(ALIGN_ASM_OP "16");
  60
  61 /* Select a format to encode pointers in exception handling data.  CODE
  62    is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
  63    true if the symbol may be affected by dynamic relocations.  */
  64 #undef ASM_PREFERRED_EH_DATA_FORMAT
  65 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)                       \
  66   (flag_pic ? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_datarel       \
  67    : DW_EH_PE_absptr)
  68
  69 /* Solaris 2/Intel uses a wint_t different from the default, as on SPARC.  */
  70 #undef  WINT_TYPE
  71 #define WINT_TYPE "long int"
  72
  73 #undef  WINT_TYPE_SIZE
  74 #define WINT_TYPE_SIZE BITS_PER_WORD
  75
  76 /* Add "sun" to the list of symbols defined for SVR4.  */
  77 #undef CPP_PREDEFINES
  78 #define CPP_PREDEFINES \
  79   "-Dunix -D__svr4__ -D__SVR4 -Dsun -Asystem=svr4"
  80
  81 /* Solaris 2/Intel as chokes on #line directives.  */
  82 #undef CPP_SPEC
  83 #define CPP_SPEC \
  84   "%{.S:-P} \
  85    %(cpp_cpu) \
  86    %{pthreads:-D_REENTRANT -D_PTHREADS} \
  87    %{!pthreads:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}} \
  88    %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude}"
  89
  90 /* For C++ we need to add some additional macro definitions required
  91    by the C++ standard library.  */
  92 #define CPLUSPLUS_CPP_SPEC "\
  93 -D_XOPEN_SOURCE=500 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 \
  94 -D__EXTENSIONS__ \
  95 %(cpp) \
  96 "
  97
  98 #undef LIB_SPEC
  99 #define LIB_SPEC \
 100   "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
 101    %{!shared:\
 102      %{!symbolic:\
 103        %{pthreads:-lpthread} \
 104        %{!pthreads:%{threads:-lthread}} \
 105        -lc}}"
 106
 107 #undef  ENDFILE_SPEC
 108 #define ENDFILE_SPEC "crtend.o%s %{pg:crtn.o%s}%{!pg:crtn.o%s}"
 109
 110 #undef  STARTFILE_SPEC
 111 #define STARTFILE_SPEC "%{!shared: \
 112                          %{!symbolic: \
 113                           %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}\
 114                         %{pg:gmon.o%s} crti.o%s \
 115                         %{ansi:values-Xc.o%s} \
 116                         %{!ansi: \
 117                          %{traditional:values-Xt.o%s} \
 118                          %{!traditional:values-Xa.o%s}} \
 119                         crtbegin.o%s"
 120
 121 /* This should be the same as in svr4.h, except with -R added.  */
 122 #undef LINK_SPEC
 123 #define LINK_SPEC \
 124   "%{h*} %{v:-V} \
 125    %{b} %{Wl,*:%*} \
 126    %{static:-dn -Bstatic} \
 127    %{shared:-G -dy %{!mimpure-text:-z text}} \
 128    %{symbolic:-Bsymbolic -G -dy -z text} \
 129    %{G:-G} \
 130    %{YP,*} \
 131    %{R*} \
 132    %{compat-bsd: \
 133      %{!YP,*:%{pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 134              %{!pg:%{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 135                    %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \
 136              -R /usr/ucblib} \
 137    %{!compat-bsd: \
 138      %{!YP,*:%{pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 139              %{!pg:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 140                    %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}} \
 141    %{Qy:} %{!Qn:-Qy}"
 142
 143 /* This defines which switch letters take arguments.
 144    It is as in svr4.h but with -R added.  */
 145
 146 #undef SWITCH_TAKES_ARG
 147 #define SWITCH_TAKES_ARG(CHAR) \
 148   (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
 149    || (CHAR) == 'R' \
 150    || (CHAR) == 'h' \
 151    || (CHAR) == 'z')
 152
 153 #define STDC_0_IN_SYSTEM_HEADERS 1
 154
 155 #undef LOCAL_LABEL_PREFIX
 156 #define LOCAL_LABEL_PREFIX "."