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-rw-r--r--libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h b/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
new file mode 100644
index 000000000..5560003fc
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/sparc/sparc64/pt-machine.h
@@ -0,0 +1,77 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ Sparc v9 version.
+ Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Richard Henderson <rth@tamu.edu>.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library 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_EI
+# define PT_EI extern inline
+#endif
+
+
+/* Spinlock implementation; required. */
+PT_EI int
+testandset (int *spinlock)
+{
+ int ret;
+
+ __asm__ __volatile__("ldstub %1,%0"
+ : "=r"(ret), "=m"(*spinlock) : "m"(*spinlock));
+
+ return ret;
+}
+
+
+/* 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");
+
+
+/* Registers %g6 and %g7 are reserved by the ABI for "system use". It
+ happens that Solaris uses %g6 for the thread pointer -- we do the same. */
+struct _pthread_descr_struct;
+register struct _pthread_descr_struct *__thread_self __asm__("%g6");
+
+/* Return the thread descriptor for the current thread. */
+#define THREAD_SELF __thread_self
+
+/* Initialize the thread-unique value. */
+#define INIT_THREAD_SELF(descr, nr) (__thread_self = (descr))
+
+
+/* Compare-and-swap for semaphores. */
+
+#define HAS_COMPARE_AND_SWAP
+PT_EI int
+__compare_and_swap (long int *p, long int oldval, long int newval)
+{
+ long int readval;
+
+ __asm__ __volatile__ ("casx [%4], %2, %0"
+ : "=r"(readval), "=m"(*p)
+ : "r"(oldval), "m"(*p), "r"(p), "0"(newval));
+
+ return readval == oldval;
+}
+
+/* Access to data in the thread descriptor is easy. */
+#define THREAD_GETMEM(descr, member) __thread_self->member
+#define THREAD_GETMEM_NC(descr, member) __thread_self->member
+#define THREAD_SETMEM(descr, member, value) __thread_self->member = (value)
+#define THREAD_SETMEM_NC(descr, member, value) __thread_self->member = (value)