Significantly lowered the default memory requirements:

- CONFIGURE_RTEMS_INIT_TASKS_TABLE was 10 now 0
    - CONFIGURE_POSIX_INIT_THREAD_TABLE was 10 now 0
    - CONFIGURE_ITRON_INIT_TASK_TABLE was 10 now 0
    - CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS was 20 now 3
    - added CONFIGURE_NUMBER_OF_TERMIOS_PORTS and defaulted to 1
    - added CONFIGURE_TERMIOS_DISABLED defaulted to "enabled"
    - miniIMFS is now the default

Added configuration error checks that:
  + Ensure > 0 tasks/threads are configured
  + Ensure at least one inititalization task/thread is defined


bsp.h now defines so BSP specific requirements are accounted for:
  + CONFIGURE_NUMBER_OF_TERMIOS_PORTS
  + CONFIGURE_INTERRUPT_STACK_MEMORY

console_reserve_resources and rtems_termios_reserve_resources
are no longer required and considered obsolete.  Calls to
rtems_termios_reserve_resources have been eliminated although
the routine is still there and the body "if 0'ed".

We are very close to having NO reason to modify the
configuration tables in the BSP.  Be warned that eventually
we would like to see the need for BSP_Configuration
eliminated!

c/src/exec/sapi/include/confdefs.h

@@ -1,9 +1,27 @@
 /*  confdefs.h
  *
  *  This include file contains the configuration table template that will
- *  be used by the single processor tests to define its default configuration
+ *  be instantiated by an application based on the setting of a number
- *  parameters.
+ *  of macros.  The macros are documented in the Configuring a System
+ *  chapter of the Classic API User's Guide
  *
+ *  The model is to estimate the memory required for each configured item
+ *  and sum those estimates.  The estimate can be too high or too low for
+ *  a variety of reasons:
+ *
+ *  Reasons estimate is too high:
+ *    + FP contexts (not all tasks are FP)
+ *
+ *  Reasons estimate is too low:
+ *    + stacks greater than minimum size
+ *    + messages
+ *    + application must account for device driver resources
+ *    + application must account for add-on library resource requirements
+ *
+ *  NOTE:  Eventually this may be able to take into account some of
+ *         the above.  This procedure has evolved from just enough to
+ *         support the RTEMS Test Suites into something that can be
+ *         used remarkably reliably by most applications.
  *  COPYRIGHT (c) 1989-1999.
  *  On-Line Applications Research Corporation (OAR).
  *
@@ -41,8 +59,12 @@ extern itron_api_configuration_table    Configuration_ITRON_API;
 #define CONFIGURE_NEWLIB_EXTENSION 1
 #define CONFIGURE_MALLOC_REGION 1
 
+/*
+ *  File descriptors managed by libio
+ */
+
 #ifndef CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS
-#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 20
+#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 3
 #endif
 
 #define CONFIGURE_LIBIO_SEMAPHORES \
@@ -52,6 +74,22 @@ extern itron_api_configuration_table    Configuration_ITRON_API;
 unsigned32 rtems_libio_number_iops = CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS;
 #endif
 
+/*
+ *  Termios resources
+ */
+
+#ifdef CONFIGURE_TERMIOS_DISABLED
+#define CONFIGURE_TERMIOS_SEMAPHORES 0
+#else
+
+#ifndef CONFIGURE_NUMBER_OF_TERMIOS_PORTS
+#define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 1
+#endif
+
+#define CONFIGURE_TERMIOS_SEMAPHORES \
+  ((CONFIGURE_NUMBER_OF_TERMIOS_PORTS * 4) + 1)
+#endif
+
 /*
  *  Mount Table Configuration
  */
@@ -62,10 +100,10 @@ unsigned32 rtems_libio_number_iops = CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS;
 
 #ifndef CONFIGURE_HAS_OWN_MOUNT_TABLE
 rtems_filesystem_mount_table_t configuration_mount_table = {
-#ifdef CONFIGURE_USE_MINIIMFS_AS_BASE_FILESYSTEM
+#ifdef CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
-  &miniIMFS_ops,
-#else  /* using IMFS as base filesystem */
   &IMFS_ops,
+#else  /* using miniIMFS as base filesystem */
+  &miniIMFS_ops,
 #endif
   RTEMS_FILESYSTEM_READ_WRITE,
   NULL,
@@ -94,15 +132,17 @@ int rtems_filesystem_mount_table_size = 1;
 
 /*
  *  Interrupt Stack Space
+ *
+ *  NOTE: There is currently no way for the application to override
+ *        the interrupt stack size set by the BSP.
  */
 
 #if (CPU_ALLOCATE_INTERRUPT_STACK == 0)
+#undef CONFIGURE_INTERRUPT_STACK_MEMORY
 #define CONFIGURE_INTERRUPT_STACK_MEMORY 0
 #else
   #ifndef CONFIGURE_INTERRUPT_STACK_MEMORY
   #define CONFIGURE_INTERRUPT_STACK_MEMORY RTEMS_MINIMUM_STACK_SIZE
-  #else
-  #define CONFIGURE_INTERRUPT_STACK_MEMORY 0
   #endif
 #endif
 
@@ -245,9 +285,9 @@ rtems_driver_address_table Device_drivers[] = {
 #endif
 
 /*
- *  Default Configuration Table.  This table contains the most values set in
+ *  Default Multiprocessing Configuration Table.  The defaults are
- *  the RTEMS Test Suite.  Each value may be overridden within each test to
+ *  appropriate for most of the RTEMS Multiprocessor Test Suite.  Each
- *  customize the environment. 
+ *  value may be overridden within each test to customize the environment. 
  */
 
 #ifdef CONFIGURE_MP_APPLICATION
@@ -295,9 +335,7 @@ rtems_multiprocessing_table Multiprocessing_configuration = {
 #endif /* CONFIGURE_MP_APPLICATION */
  
 /*
- *  Default Configuration Table.  This table contains the most values set in
+ *  Default Configuration Table.  
- *  the RTEMS Test Suite.  Each value may be overridden within each test to
- *  customize the environment. 
  */
 
 #ifndef CONFIGURE_HAS_OWN_CONFIGURATION_TABLE
@@ -307,7 +345,7 @@ rtems_multiprocessing_table Multiprocessing_configuration = {
 #endif
 
 #ifndef CONFIGURE_MAXIMUM_TASKS
-#define CONFIGURE_MAXIMUM_TASKS               10
+#define CONFIGURE_MAXIMUM_TASKS               0
 #endif
 
 #ifndef CONFIGURE_MAXIMUM_TIMERS
@@ -393,7 +431,7 @@ rtems_extensions_table Configuration_Initial_Extensions[] = {
 #include <rtems/posix/threadsup.h>
 
 #ifndef CONFIGURE_MAXIMUM_POSIX_THREADS
-#define CONFIGURE_MAXIMUM_POSIX_THREADS      10
+#define CONFIGURE_MAXIMUM_POSIX_THREADS      0
 #endif
 
 #ifndef CONFIGURE_MAXIMUM_POSIX_MUTEXES
@@ -430,7 +468,7 @@ rtems_extensions_table Configuration_Initial_Extensions[] = {
 
 /*
  *  The user is defining their own table information and setting the
- *  appropriate variables.
+ *  appropriate variables for the POSIX Initialization Thread Table.
  */
  
 #else
@@ -547,7 +585,7 @@ posix_initialization_threads_table POSIX_Initialization_threads[] = {
 #include <rtems/itron/vmempool.h>
 
 #ifndef CONFIGURE_MAXIMUM_ITRON_TASKS
-#define CONFIGURE_MAXIMUM_ITRON_TASKS      10
+#define CONFIGURE_MAXIMUM_ITRON_TASKS      0
 #endif
 
 #ifndef CONFIGURE_MAXIMUM_ITRON_SEMAPHORES
@@ -584,7 +622,7 @@ posix_initialization_threads_table POSIX_Initialization_threads[] = {
 
 /*
  *  The user is defining their own table information and setting the
- *  appropriate variables.
+ *  appropriate variables for the ITRON Initialization Task Table.
  */
 
 #else
@@ -709,22 +747,6 @@ itron_initialization_tasks_table ITRON_Initialization_tasks[] = {
 
 /* 
  *  Calculate the RAM size based on the maximum number of objects configured.
- *  The model is to estimate the memory required for each configured item,
- *  sum the memory requirements and insure that there is at least 32K greater 
- *  than that for things not directly addressed such as:
- *
- *    + stacks greater than minimum size
- *    + FP contexts
- *    + API areas (should be optional)
- *    + messages
- *    + object name and local pointer table overhead
- *    + per node memory requirements
- *    + executive fixed requirements (including at least internal threads
- *       and the Ready chains)
- *
- *  NOTE:  Eventually this should take into account some of the above.
- *         Basically, this is a "back of the envelope" estimate for
- *         memory requirements.  It could be more accurate.
  */
 
 #ifndef CONFIGURE_EXECUTIVE_RAM_SIZE
@@ -822,7 +844,7 @@ itron_initialization_tasks_table ITRON_Initialization_tasks[] = {
       CONFIGURE_MAXIMUM_ITRON_TASKS ) + \
    CONFIGURE_MEMORY_FOR_TIMERS(CONFIGURE_MAXIMUM_TIMERS) + \
    CONFIGURE_MEMORY_FOR_SEMAPHORES(CONFIGURE_MAXIMUM_SEMAPHORES + \
-     CONFIGURE_LIBIO_SEMAPHORES) + \
+     CONFIGURE_LIBIO_SEMAPHORES + CONFIGURE_TERMIOS_SEMAPHORES) + \
    CONFIGURE_MEMORY_FOR_MESSAGE_QUEUES(CONFIGURE_MAXIMUM_MESSAGE_QUEUES) + \
    CONFIGURE_MEMORY_FOR_PARTITIONS(CONFIGURE_MAXIMUM_PARTITIONS) + \
    CONFIGURE_MEMORY_FOR_REGIONS( \
@@ -872,7 +894,8 @@ itron_initialization_tasks_table ITRON_Initialization_tasks[] = {
 rtems_api_configuration_table Configuration_RTEMS_API = {
   CONFIGURE_MAXIMUM_TASKS,
   CONFIGURE_MAXIMUM_TIMERS,
-  CONFIGURE_MAXIMUM_SEMAPHORES + CONFIGURE_LIBIO_SEMAPHORES,
+  CONFIGURE_MAXIMUM_SEMAPHORES + CONFIGURE_LIBIO_SEMAPHORES +
+    CONFIGURE_TERMIOS_SEMAPHORES,
   CONFIGURE_MAXIMUM_MESSAGE_QUEUES,
   CONFIGURE_MAXIMUM_PARTITIONS,
   CONFIGURE_MAXIMUM_REGIONS + CONFIGURE_MALLOC_REGION,
@@ -948,5 +971,31 @@ rtems_configuration_table Configuration = {
 }
 #endif
  
+/*
+ *  Some warnings and error checking
+ */
+
+/*
+ *  Make sure a task/thread of some sort is configured
+ */
+
+#if (CONFIGURE_MAXIMUM_TASKS == 0) && \
+    (CONFIGURE_MAXIMUM_POSIX_THREADS == 0) && \
+    (CONFIGURE_MAXIMUM_ADA_TASKS == 0) &&  \
+    (CONFIGURE_MAXIMUM_ITRON_TASKS == 0)
+#error "CONFIGURATION ERROR: No tasks or threads configured!!
+#endif
+
+/*
+ *  Make sure at least one of the initialization task/thread
+ *  tables was defined.
+ */
+
+#if !defined(CONFIGURE_RTEMS_INIT_TASKS_TABLE) && \
+    !defined(CONFIGURE_POSIX_INIT_THREAD_TABLE) && \
+    !defined(CONFIGURE_ITRON_INIT_TASK_TABLE)
+#error "CONFIGURATION ERROR: No initialization tasks or threads configured!!
+#endif
+
 #endif
 /* end of include file */

c/src/lib/include/console.h

@@ -24,10 +24,6 @@ extern "C" {
   { console_initialize, console_open, console_close, \
     console_read, console_write, console_control }
 
-void console_reserve_resources(
-  rtems_configuration_table *configuration
-);
-
 rtems_device_driver console_initialize(
   rtems_device_major_number,
   rtems_device_minor_number,

c/src/lib/libbsp/a29k/portsw/include/bsp.h

@@ -25,6 +25,15 @@ extern "C" {
 #include <console.h>
 #include <clockdrv.h>
 
+/*
+ *  confdefs.h overrides for this BSP:
+ *   - number of termios serial ports (defaults to 1)
+ *   - Interrupt stack space is not minimum if defined.
+ */
+
+/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
+#define CONFIGURE_INTERRUPT_STACK_MEMORY  (4 * 1024)
+
 /*
  *  Define the time limits for RTEMS Test Suite test durations.
  *  Long test and short test duration limits are provided.  These

c/src/lib/libbsp/a29k/portsw/startup/bspstart.c

@@ -140,7 +140,7 @@ int bsp_start(
 
   Cpu_table.pretasking_hook = bsp_pretasking_hook;  /* init libc, etc. */
   Cpu_table.postdriver_hook = bsp_postdriver_hook;
-  Cpu_table.interrupt_stack_size = 4096;
+  Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
 
   _settrap( 109,&a29k_enable_sup);
   _settrap( 110,&a29k_disable_sup);

c/src/lib/libbsp/bare/include/bsp.h

@@ -25,6 +25,15 @@ extern "C" {
 #include <console.h>
 #include <clockdrv.h>
 
+/*
+ *  confdefs.h overrides for this BSP:
+ *   - number of termios serial ports (defaults to 1)
+ *   - Interrupt stack space is not minimum if defined.
+ */
+
+/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
+#define CONFIGURE_INTERRUPT_STACK_MEMORY  (12 * 1024)
+
 /*
  *  Define the time limits for RTEMS Test Suite test durations.
  *  Long test and short test duration limits are provided.  These

c/src/lib/libbsp/hppa1.1/simhppa/include/bsp.h

@@ -23,6 +23,15 @@ extern "C" {
 #include <clockdrv.h>
 #include <rtems/ttydrv.h>
 
+/*
+ *  confdefs.h overrides for this BSP:
+ *   - number of termios serial ports (defaults to 1)
+ *   - Interrupt stack space is not minimum if defined.
+ */
+
+/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
+/* #define CONFIGURE_INTERRUPT_STACK_MEMORY  (TBD * 1024) */
+
 /*
  *  Define the time limits for RTEMS Test Suite test durations.
  *  Long test and short test duration limits are provided.  These

c/src/lib/libbsp/hppa1.1/simhppa/startup/bspstart.c

@@ -189,7 +189,7 @@ void bsp_start(void)
      */
 
     Cpu_table.do_zero_of_workspace = FALSE;
-    Cpu_table.interrupt_stack_size = (12 * 1024);
+    Cpu_table.interrupt_stack_size = CONFIGURE_INTERRUPT_STACK_MEMORY;
 
     /*
      * Set this artificially low for the simulator
@@ -230,13 +230,6 @@ void bsp_start(void)
     BSP_Configuration.maximum_extensions++;
 #endif
 
-    /*
-     * Add 1 extension for MPCI_fatal
-     */
-
-    if (BSP_Configuration.User_multiprocessing_table)
-        BSP_Configuration.maximum_extensions++;
-
     /*
      * Set the "clicks per tick" for the simulator
      *  used by libcpu/hppa/clock/clock.c to schedule interrupts

c/src/lib/libbsp/i386/i386ex/console/console.c

@@ -95,12 +95,6 @@ isr_is_on(const rtems_irq_connect_data *irq)
   return BSP_irq_enabled_at_i8259s(irq->name);
 }
 
-void console_reserve_resources(rtems_configuration_table *conf)
-{
-  rtems_termios_reserve_resources(conf, 1);
-  return;
-}
-
 void __assert (const char *file, int line, const char *msg)
 {
     static   char exit_msg[] = "EXECUTIVE SHUTDOWN! Any key to reboot...";

c/src/lib/libbsp/i386/i386ex/include/bsp.h

@@ -25,6 +25,15 @@ extern "C" {
 #include <bspIo.h>
 #include <irq.h>
   
+/*
+ *  confdefs.h overrides for this BSP:
+ *   - number of termios serial ports (defaults to 1)
+ *   - Interrupt stack space is not minimum if defined.
+ */
+
+/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */
+#define CONFIGURE_INTERRUPT_STACK_MEMORY  (8 * 1024)
+
 /*
  *  Define the time limits for RTEMS Test Suite test durations.
  *  Long test and short test duration limits are provided.  These