Various updates.

* Removed some variants of the SYS_GETINFO calls from the kernel;
  replaced them with new PM and utils libary functionality. Fixed
  bugs in utils library that used old get_kenv() variant.
* Implemented a buffer in the kernel to gather random data.
  Memory driver periodically checks this for /dev/random.
  A better random algorithm can now be implemented in the driver.
  Removed SYS_RANDOM; the SYS_GETINFO call is used instead.
* Remove SYS_KMALLOC from the kernel. Memory allocation can now
  be done at the process manager with new 'other' library functions.

lib/syslib/Makefile

@@ -26,7 +26,6 @@ OBJECTS	= \
 	$(LIBSYS)(sys_xit.o) \
 	$(LIBSYS)(sys_sdevio.o) \
 	$(LIBSYS)(sys_getinfo.o) \
-	$(LIBSYS)(sys_kmalloc.o) \
 	$(LIBSYS)(sys_irqctl.o) \
 	$(LIBSYS)(sys_eniop.o) \
 	$(LIBSYS)(sys_segctl.o) \
@@ -96,9 +95,6 @@ $(LIBSYS)(sys_sdevio.o):	sys_sdevio.c
 $(LIBSYS)(sys_getinfo.o):	sys_getinfo.c
 	$(CC1) sys_getinfo.c
 
-$(LIBSYS)(sys_kmalloc.o):	sys_kmalloc.c
-	$(CC1) sys_kmalloc.c
-
 $(LIBSYS)(sys_irqctl.o):	sys_irqctl.c
 	$(CC1) sys_irqctl.c
 

lib/syslib/kprintf.c

@@ -1,4 +1,4 @@
-/*	printf() - kernel printf()			Author: Kees J. Bot
+/*	printf() - system services printf()		Author: Kees J. Bot
  *								15 Jan 1994
  */
 #define nil 0

lib/syslib/kputc.c

@@ -34,7 +34,7 @@ int c;
 	m.DIAG_PRINT_BUF = print_buf;
 	m.DIAG_PROC_NR = SELF;
 	m.m_type = DIAGNOSTICS;
-	if (_sendrec(TTY, &m) != 0) {
+	if (_sendrec(IS_PROC_NR, &m) != 0) {
 		m.m1_i1 = 2;
 		m.m1_i2 = buf_count;
 		m.m1_p1 = print_buf;