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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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+/* 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)