diff options
Diffstat (limited to 'linuxthreads/sysdeps/sparc/sparc32')
-rw-r--r-- | linuxthreads/sysdeps/sparc/sparc32/Implies | 1 | ||||
-rw-r--r-- | linuxthreads/sysdeps/sparc/sparc32/pt-machine.h | 55 |
2 files changed, 56 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/sparc/sparc32/Implies b/linuxthreads/sysdeps/sparc/sparc32/Implies new file mode 100644 index 0000000000..7edcd7e757 --- /dev/null +++ b/linuxthreads/sysdeps/sparc/sparc32/Implies @@ -0,0 +1 @@ +pthread/no-cmpxchg diff --git a/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h new file mode 100644 index 0000000000..13f78e319a --- /dev/null +++ b/linuxthreads/sysdeps/sparc/sparc32/pt-machine.h @@ -0,0 +1,55 @@ +/* Machine-dependent pthreads configuration and inline functions. + sparc version. + Copyright (C) 1996, 1997 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. */ + +/* Spinlock implementation; required. */ +static inline int testandset(int *spinlock) +{ + int ret; + + __asm__ __volatile__("ldstub %1,%0" + : "=r"(ret), "=m"(*spinlock) + : "m"(*spinlock)); + + return ret; +} + + +/* Spinlock release; default is just set to zero. */ +#define RELEASE(spinlock) \ + __asm__ __volatile__("stbar; stb %1,%0" : "=m"(*(spinlock)) : "r"(0)); + + +/* 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) (__thread_self = (descr)) |