Index: abi/include/bool.h
===================================================================
--- abi/include/bool.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
+++ abi/include/bool.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2011 Martin Decky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup generic
+ * @{
+ */
+/** @file
+ */
+
+#ifndef ABI_BOOL_H_
+#define ABI_BOOL_H_
+
+typedef uint8_t bool;
+
+#endif
+
+/** @}
+ */
Index: abi/include/proc/task.h
===================================================================
--- abi/include/proc/task.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
+++ abi/include/proc/task.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2006 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup genericproc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef ABI_PROC_TASK_H_
+#define ABI_PROC_TASK_H_
+
+typedef uint64_t task_id_t;
+
+#endif
+
+/** @}
+ */
Index: abi/include/proc/thread.h
===================================================================
--- abi/include/proc/thread.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
+++ abi/include/proc/thread.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2006 Jakub Jermar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup genericproc
+ * @{
+ */
+/** @file
+ */
+
+#ifndef ABI_PROC_THREAD_H_
+#define ABI_PROC_THREAD_H_
+
+typedef uint64_t thread_id_t;
+
+/** Thread states */
+typedef enum {
+	/** It is an error, if thread is found in this state. */
+	Invalid,
+	/** State of a thread that is currently executing on some CPU. */
+	Running,
+	/** Thread in this state is waiting for an event. */
+	Sleeping,
+	/** State of threads in a run queue. */
+	Ready,
+	/** Threads are in this state before they are first readied. */
+	Entering,
+	/** After a thread calls thread_exit(), it is put into Exiting state. */
+	Exiting,
+	/** Threads that were not detached but exited are Lingering. */
+	Lingering
+} state_t;
+
+#endif
+
+/** @}
+ */
Index: abi/include/syscall.h
===================================================================
--- abi/include/syscall.h	(revision ab34cc996f19066bcba82ddd7e2ec4967374ee4b)
+++ abi/include/syscall.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
@@ -89,5 +89,5 @@
 	SYS_UNREGISTER_IRQ,
 	
-	SYS_SYSINFO_GET_TAG,
+	SYS_SYSINFO_GET_VAL_TYPE,
 	SYS_SYSINFO_GET_VALUE,
 	SYS_SYSINFO_GET_DATA_SIZE,
Index: abi/include/sysinfo.h
===================================================================
--- abi/include/sysinfo.h	(revision ab34cc996f19066bcba82ddd7e2ec4967374ee4b)
+++ abi/include/sysinfo.h	(revision ab9378b44e4fa6398d0ebc438e0bced6f97cbc29)
@@ -37,4 +37,7 @@
 #define ABI_SYSINFO_H_
 
+#include <abi/proc/task.h>
+#include <abi/proc/thread.h>
+
 /** Number of load components */
 #define LOAD_STEPS  3
@@ -44,21 +47,14 @@
 #define EXC_NAME_BUFLEN   20
 
-/** Thread states */
+/** Item value type
+ *
+ */
 typedef enum {
-	/** It is an error, if thread is found in this state. */
-	Invalid,
-	/** State of a thread that is currently executing on some CPU. */
-	Running,
-	/** Thread in this state is waiting for an event. */
-	Sleeping,
-	/** State of threads in a run queue. */
-	Ready,
-	/** Threads are in this state before they are first readied. */
-	Entering,
-	/** After a thread calls thread_exit(), it is put into Exiting state. */
-	Exiting,
-	/** Threads that were not detached but exited are Lingering. */
-	Lingering
-} state_t;
+	SYSINFO_VAL_UNDEFINED = 0,     /**< Undefined value */
+	SYSINFO_VAL_VAL = 1,           /**< Constant numeric value */
+	SYSINFO_VAL_DATA = 2,          /**< Constant binary data */
+	SYSINFO_VAL_FUNCTION_VAL = 3,  /**< Generated numeric value */
+	SYSINFO_VAL_FUNCTION_DATA = 4  /**< Generated binary data */
+} sysinfo_item_val_type_t;
 
 /** Statistics about a single CPU
