summaryrefslogtreecommitdiff
path: root/libpthread/linuxthreads.old/sysdeps/frv
diff options
context:
space:
mode:
authorMike Frysinger <vapier@gentoo.org>2005-11-15 03:13:04 +0000
committerMike Frysinger <vapier@gentoo.org>2005-11-15 03:13:04 +0000
commita9f5aa1cc96fc2c71f19a9c3e9dcbee0e78f83ca (patch)
tree2c5d251bdfd06d0a76cec9fc507b1873b4bbbdad /libpthread/linuxthreads.old/sysdeps/frv
parentfd6dde5a19092be5bb1990dadd5c595d2ed0b3aa (diff)
rename current stable linuxthreads to linuxthreads.old to prepare for import of latest glibc version
Diffstat (limited to 'libpthread/linuxthreads.old/sysdeps/frv')
-rw-r--r--libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h b/libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h
new file mode 100644
index 000000000..64df5ffdb
--- /dev/null
+++ b/libpthread/linuxthreads.old/sysdeps/frv/pt-machine.h
@@ -0,0 +1,68 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ FR-V version.
+ Copyright (C) 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Alexandre Oliva <aoliva@redhat.com>
+
+ 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; see the file COPYING.LIB. If
+ not, write to the Free Software Foundation, Inc.,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _PT_MACHINE_H
+#define _PT_MACHINE_H 1
+
+#ifndef __ASSEMBLER__
+
+#ifndef PT_EI
+# define PT_EI extern inline __attribute__ ((always_inline))
+#endif
+
+/* Spinlock implementation; required. */
+PT_EI long int
+testandset (int *spinlock)
+{
+ int i = 1;
+ asm ("swap%I0 %M0, %1" : "+m"(*(volatile int *)spinlock), "+r"(i));
+ return i;
+}
+
+/* We want the OS to assign stack addresses. */
+#define FLOATING_STACKS 1
+
+/* This symbol is defined by the ABI as the stack size requested by
+ the main program. */
+extern char __stacksize;
+#define ARCH_STACK_MAX_SIZE ((unsigned long)&__stacksize)
+
+/* Memory barrier; default is to do nothing */
+#define MEMORY_BARRIER() __asm__ __volatile__("membar" : : : "memory")
+/* Write barrier. */
+#define WRITE_MEMORY_BARRIER() __asm__ __volatile__("membar" : : : "memory")
+
+/* Return the thread descriptor for the current thread. */
+register struct _pthread_descr_struct *THREAD_SELF asm ("gr29");
+#define THREAD_SELF THREAD_SELF
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr, nr) \
+ (THREAD_SELF = descr)
+
+/* Get some notion of the current stack. Need not be exactly the top
+ of the stack, just something somewhere in the current frame. */
+#define CURRENT_STACK_FRAME stack_pointer
+register char * stack_pointer __asm__ ("sp");
+
+#endif
+
+#endif /* pt-machine.h */