gcc/config/i386/sol2.h

   1 /* Target definitions for GNU compiler for Intel 80386 running Solaris 2
   2    Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
   3    Contributed by Fred Fish (fnf@cygnus.com).
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 #include "i386/sysv4.h"
  23
  24 /* The Solaris 2.0 x86 linker botches alignment of code sections.
  25    It tries to align to a 16 byte boundary by padding with 0x00000090
  26    ints, rather than 0x90 bytes (nop).  This generates trash in the
  27    ".init" section since the contribution from crtbegin.o is only 7
  28    bytes.  The linker pads it to 16 bytes with a single 0x90 byte, and
  29    two 0x00000090 ints, which generates a segmentation violation when
  30    executed.  This macro forces the assembler to do the padding, since
  31    it knows what it is doing. */
  32
  33 #define FORCE_INIT_SECTION_ALIGN do { asm (ALIGN_ASM_OP ## " 16"); } while (0)
  34 #define FORCE_FINI_SECTION_ALIGN FORCE_INIT_SECTION_ALIGN
  35
  36 /* Add "sun" to the list of symbols defined for SVR4.  */
  37 #undef CPP_PREDEFINES
  38 #define CPP_PREDEFINES \
  39   "-Di386 -Dunix -D__svr4__ -D__SVR4 -Dsun \
  40    -Asystem(unix) -Asystem(svr4) -Acpu(i386) -Amachine(i386)"
  41
  42 #undef CPP_SPEC
  43 #define CPP_SPEC "\
  44    %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude}"
  45
  46 #undef LIB_SPEC
  47 #define LIB_SPEC \
  48   "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} %{!shared:%{!symbolic:-lc}}"
  49
  50 #undef  ENDFILE_SPEC
  51 #define ENDFILE_SPEC "crtend.o%s %{pg:crtn.o%s}%{!pg:crtn.o%s}"
  52
  53 /* This should be the same as in svr4.h, except with -R added.  */
  54 #undef LINK_SPEC
  55 #define LINK_SPEC \
  56   "%{h*} %{V} %{v:%{!V:-V}} \
  57    %{b} %{Wl,*:%*} \
  58    %{static:-dn -Bstatic} \
  59    %{shared:-G -dy -z text} \
  60    %{symbolic:-Bsymbolic -G -dy -z text} \
  61    %{G:-G} \
  62    %{YP,*} \
  63    %{R*} \
  64    %{compat-bsd: \
  65      %{!YP,*:%{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
  66        %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
  67      -R /usr/ucblib} \
  68    %{!compat-bsd: \
  69      %{!YP,*:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
  70        %{!p:-Y P,/usr/ccs/lib:/usr/lib}}} \
  71    %{Qy:} %{!Qn:-Qy}"
  72
  73 /* This defines which switch letters take arguments.
  74    It is as in svr4.h but with -R added.  */
  75
  76 #undef SWITCH_TAKES_ARG
  77 #define SWITCH_TAKES_ARG(CHAR) \
  78   (DEFAULT_SWITCH_TAKES_ARG(CHAR) \
  79    || (CHAR) == 'h' \
  80    || (CHAR) == 'z')
  81