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authorRoland McGrath <roland@hack.frob.com>2014-06-12 10:08:24 -0700
committerRoland McGrath <roland@hack.frob.com>2014-06-12 10:08:24 -0700
commitf6b07b3d48eb1d28d033b2c342a8a5571dca2e18 (patch)
treeb17d612816248611d12d049466a5b524d32f97a0 /sysdeps/i386/nptl/pthreaddef.h
parent45262aeedf2f56dcd3b30e37630ea85bb4f55603 (diff)
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Move i386 code out of nptl/ subdirectory.
Diffstat (limited to 'sysdeps/i386/nptl/pthreaddef.h')
-rw-r--r--sysdeps/i386/nptl/pthreaddef.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/i386/nptl/pthreaddef.h b/sysdeps/i386/nptl/pthreaddef.h
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+++ b/sysdeps/i386/nptl/pthreaddef.h
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+/* Copyright (C) 2002-2014 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, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* 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.
+
+   Some processors such as Intel Atom pay a big penalty on every
+   access using a segment override if that segment's base is not
+   aligned to the size of a cache line.  (See Intel 64 and IA-32
+   Architectures Optimization Reference Manual, section 13.3.3.3,
+   "Segment Base".)  On such machines, a cache line is 64 bytes.  */
+#define TCB_ALIGNMENT		64
+
+
+/* Location of current stack frame.  */
+#define CURRENT_STACK_FRAME	__builtin_frame_address (0)