sysdeps/mach/hurd/dl-sysdep.h

   1 /* System-specific settings for dynamic linker code.  Hurd version.
   2    Copyright (C) 2002-2013 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 /* The private errno doesn't make sense on the Hurd.  errno is always the
  20    thread-local slot shared with libc, and it matters to share the cell
  21    with libc because after startup we use libc functions that set errno
  22    (open, mmap, etc).  */
  23
  24 #define RTLD_PRIVATE_ERRNO 0
  25
  26 #ifdef SHARED
  27 /* _dl_argv and __libc_stack_end cannot be attribute_relro, because the stack-switching
  28    libc initializer for using cthreads might write into it.  */
  29 # define DL_ARGV_NOT_RELRO 1
  30 # define LIBC_STACK_END_NOT_RELRO 1
  31 #endif