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 #define CMOV_SUN_AS_SYNTAX 1
  24
  25 /* The Solaris 2.0 x86 linker botches alignment of code sections.
  26    It tries to align to a 16 byte boundary by padding with 0x00000090
  27    ints, rather than 0x90 bytes (nop).  This generates trash in the
  28    ".init" section since the contribution from crtbegin.o is only 7
  29    bytes.  The linker pads it to 16 bytes with a single 0x90 byte, and
  30    two 0x00000090 ints, which generates a segmentation violation when
  31    executed.  This macro forces the assembler to do the padding, since
  32    it knows what it is doing.  */
  33 #define FORCE_CODE_SECTION_ALIGN  asm(ALIGN_ASM_OP "16");
  34
  35 /* Select a format to encode pointers in exception handling data.  CODE
  36    is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
  37    true if the symbol may be affected by dynamic relocations.  */
  38 #undef ASM_PREFERRED_EH_DATA_FORMAT
  39 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)                       \
  40   (flag_pic ? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_datarel       \
  41    : DW_EH_PE_absptr)
  42
  43 /* Solaris 2/Intel as chokes on #line directives.  */
  44 #undef CPP_SPEC
  45 #define CPP_SPEC "%{.S:-P} %(cpp_subtarget)"
  46
  47 /* FIXME: Removed -K PIC from generic Solaris 2 ASM_SPEC: the native assembler
  48    gives many warnings: R_386_32 relocation is used for symbol ".text".  */
  49 #undef ASM_SPEC
  50 #define ASM_SPEC "\
  51 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
  52 %(asm_cpu) \
  53 "
  54
  55 #define ASM_CPU_SPEC ""
  56
  57 #undef SUBTARGET_EXTRA_SPECS
  58 #define SUBTARGET_EXTRA_SPECS \
  59   { "cpp_subtarget",    CPP_SUBTARGET_SPEC },   \
  60   { "asm_cpu",          ASM_CPU_SPEC },         \
  61   { "startfile_arch",   STARTFILE_ARCH_SPEC },  \
  62   { "link_arch",        LINK_ARCH_SPEC }
  63
  64 #undef LOCAL_LABEL_PREFIX
  65 #define LOCAL_LABEL_PREFIX "."
  66
  67 /* The Solaris assembler does not support .quad.  Do not use it.  */
  68 #undef ASM_QUAD