| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2002, 2003 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 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, write to the Free |
| 17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | 02111-1307 USA. */ |
| 19 | |
| 20 | /* Default stack size. */ |
| 21 | #define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) |
| 22 | |
| 23 | /* Required stack pointer alignment at beginning. SSE requires 16 |
| 24 | bytes. */ |
| 25 | #define STACK_ALIGN 16 |
| 26 | |
| 27 | /* Minimal stack size after allocating thread descriptor and guard size. */ |
| 28 | #define MINIMAL_REST_STACK 2048 |
| 29 | |
| 30 | /* Alignment requirement for TCB. */ |
| 31 | #define TCB_ALIGNMENT 16 |
| 32 | |
| 33 | |
| 34 | /* Location of current stack frame. */ |
| 35 | #define CURRENT_STACK_FRAME __builtin_frame_address (0) |
| 36 | |
| 37 | |
| 38 | /* XXX Until we have a better place keep the definitions here. */ |
| 39 | |
| 40 | /* While there is no such syscall. */ |
| 41 | #define __exit_thread_inline(val) \ |
| 42 | while (1) { \ |
| 43 | if (__builtin_constant_p (val) && (val) == 0) \ |
| 44 | __asm__ __volatile__ ("xorl %%ebx, %%ebx; int $0x80" :: "a" (__NR_exit)); \ |
| 45 | else \ |
| 46 | __asm__ __volatile__ ("movl %1, %%ebx; int $0x80" \ |
| 47 | :: "a" (__NR_exit), "r" (val)); \ |
| 48 | } |