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authorTobias Anderberg <tobias.anderberg@axis.com>2002-09-20 15:09:58 +0000
committerTobias Anderberg <tobias.anderberg@axis.com>2002-09-20 15:09:58 +0000
commit750c0194b0b645120ddccf25b82848b06be6cdc2 (patch)
treec78b7da6d4bd9970ad98da9ba4dceb811edc4ec4 /libpthread/linuxthreads/sysdeps/cris
parent6e894d9315534bcfc637c84ade7464b2b731f2f9 (diff)
Added pthread support for CRIS.
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/cris')
-rw-r--r--libpthread/linuxthreads/sysdeps/cris/pt-machine.h50
-rw-r--r--libpthread/linuxthreads/sysdeps/cris/sigcontextinfo.h27
2 files changed, 77 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/cris/pt-machine.h b/libpthread/linuxthreads/sysdeps/cris/pt-machine.h
new file mode 100644
index 000000000..e8073559a
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/cris/pt-machine.h
@@ -0,0 +1,50 @@
+/* Machine-dependent pthreads configuration and inline functions.
+ CRIS version.
+ Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ 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
+
+PT_EI long int
+testandset (int *spinlock)
+{
+ register unsigned long int ret;
+
+ /* Note the use of a dummy output of *spinlock to expose the write. The
+ memory barrier is to stop *other* writes being moved past this code. */
+ __asm__ __volatile__("clearf\n"
+ "0:\n\t"
+ "movu.b [%2],%0\n\t"
+ "ax\n\t"
+ "move.b %3,[%2]\n\t"
+ "bwf 0b\n\t"
+ "clearf"
+ : "=&r" (ret), "=m" (*spinlock)
+ : "r" (spinlock), "r" ((int) 1), "m" (*spinlock)
+ : "memory");
+ 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.
+ I don't trust register variables, so let's do this the safe way. */
+#define CURRENT_STACK_FRAME \
+ ({ char *sp; __asm__ ("move.d $sp,%0" : "=rm" (sp)); sp; })
diff --git a/libpthread/linuxthreads/sysdeps/cris/sigcontextinfo.h b/libpthread/linuxthreads/sysdeps/cris/sigcontextinfo.h
new file mode 100644
index 000000000..8a6c93aab
--- /dev/null
+++ b/libpthread/linuxthreads/sysdeps/cris/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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. */
+
+/* In general we cannot provide any information. */
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(ctx) ((void *) 0)
+#define GET_FRAME(ctx) ((void *) 0)
+#define GET_STACK(ctx) ((void *) 0)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))