mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 06:20:06 +00:00
880867a475
2003-05-09 Ulrich Drepper <drepper@redhat.com> * sysdeps/unix/sysv/linux/x86_64/get_clockfreq.c: New file.
55 lines
2.0 KiB
C
55 lines
2.0 KiB
C
/* 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. */
|
|
|
|
/* Default stack size. */
|
|
#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
|
|
|
|
/* Required stack pointer alignment at beginning. SSE requires 16
|
|
bytes. */
|
|
#define STACK_ALIGN 16
|
|
|
|
/* Minimal stack size after allocating thread descriptor and guard size. */
|
|
#define MINIMAL_REST_STACK 2048
|
|
|
|
/* Alignment requirement for TCB. */
|
|
#define TCB_ALIGNMENT 16
|
|
|
|
|
|
/* Location of current stack frame. The frame pointer is not usable. */
|
|
#define CURRENT_STACK_FRAME \
|
|
({ char *frame; asm ("movq %%rsp, %0" : "=r" (frame)); frame; })
|
|
|
|
|
|
/* We prefer to have the stack allocated in the low 4GB since this
|
|
allows faster context switches. */
|
|
#define ARCH_MAP_FLAGS MAP_32BIT
|
|
|
|
/* If it is not possible to allocate memory there retry without that
|
|
flag. */
|
|
#define ARCH_RETRY_MMAP(size) \
|
|
mmap (NULL, size, PROT_READ | PROT_WRITE | PROT_EXEC, \
|
|
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0)
|
|
|
|
|
|
/* XXX Until we have a better place keep the definitions here. */
|
|
|
|
/* While there is no such syscall. */
|
|
#define __exit_thread_inline(val) \
|
|
asm volatile ("syscall" :: "a" (__NR_exit), "D" (val))
|