gcc/config/pa/pa32-linux.h

   1 /* Definitions for PA_RISC with ELF-32 format
   2    Copyright (C) 2000, 2002 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Turn off various SOM crap we don't want.  */
  22 #undef TARGET_ELF32
  23 #define TARGET_ELF32 1
  24
  25 /* Sibcalls are ok when ld is used in single subspace mode.  The
  26    multiple subspace mode is not compatible with sibcalls to external
  27    functions because the linker generated stubs store the return
  28    pointer into the frame.  This target does not need multiple
  29    subspace stubs, so we allow sibcalls to all functions.  */
  30 #undef FUNCTION_OK_FOR_SIBCALL
  31 #define FUNCTION_OK_FOR_SIBCALL(DECL) 1
  32
  33 /* The libcall __canonicalize_funcptr_for_compare is referenced in
  34    crtend.o and the reference isn't resolved in objects that don't
  35    compare function pointers.  Thus, we need to play games to provide
  36    a reference in crtbegin.o.  The rest of the define is the same
  37    as that in crtstuff.c  */
  38 #define CTOR_LIST_BEGIN \
  39   asm (".type __canonicalize_funcptr_for_compare,@function\n"           \
  40 "       .text\n"                                                        \
  41 "       .word __canonicalize_funcptr_for_compare-$PIC_pcrel$0");        \
  42   STATIC func_ptr __CTOR_LIST__[1]                                      \
  43     __attribute__ ((__unused__, section(".ctors"),                      \
  44                     aligned(sizeof(func_ptr))))                         \
  45     = { (func_ptr) (-1) }