elf/tst-tls-allocation-failure-static.c

   1 /* Base for test program with impossiblyh large PT_TLS segment.
   2    Copyright (C) 2022 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    <https://www.gnu.org/licenses/>.  */
  18
  19 /* The test actual binary is patched using scripts/tst-elf-edit.py
  20    --maximize-tls-size, and this introduces the expected test
  21    allocation failure due to an excessive PT_LS p_memsz value.
  22
  23    Patching the binary is required because on some 64-bit targets, TLS
  24    relocations can only cover a 32-bit range, and glibc-internal TLS
  25    variables such as errno end up outside that range.  */
  26
  27 int
  28 main (void)
  29 {
  30   return 0;
  31 }