| /* Copyright (C) 2002, 2003 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| /* The "thread register" gets initialized from a segment descriptor. |
| Initialize such a descriptor first. */ |
| #define PREPARE_CREATE \ |
| union user_desc_init desc; \ |
| \ |
| /* Describe the thread-local storage segment. */ \ |
| \ |
| /* The 'entry_number' field. The first three bits of the segment \ |
| register value select the GDT, ignore them. We get the index \ |
| from the value of the %gs register in the current thread. */ \ |
| desc.vals[0] = TLS_GET_GS () >> 3; \ |
| /* The 'base_addr' field. Pointer to the TCB. */ \ |
| desc.vals[1] = (unsigned long int) pd; \ |
| /* The 'limit' field. We use 4GB which is 0xfffff pages. */ \ |
| desc.vals[2] = 0xfffff; \ |
| /* Collapsed value of the bitfield: \ |
| .seg_32bit = 1 \ |
| .contents = 0 \ |
| .read_exec_only = 0 \ |
| .limit_in_pages = 1 \ |
| .seg_not_present = 0 \ |
| .useable = 1 */ \ |
| desc.vals[3] = 0x51 |
| |
| /* Value passed to 'clone' for initialization of the thread register. */ |
| #define TLS_VALUE &desc.desc |
| |
| |
| /* Get the real implementation. */ |
| #include <nptl/sysdeps/pthread/createthread.c> |
