api: Remove deprecated Notepads

Notepads where a feature of RTEMS' tasks that simply functioned in
the same way as POSIX keys or threaded local storage (TLS). They were
introduced well before per task variables, which are also deprecated,
and were barely used in favor of their POSIX alternatives.

In addition to their scarce usage, Notepads took up unnecessary memory.
For each task:

 - 16 32-bit integers were allocated.
 - A total of 64 bytes per task per thread.

This is especially critical in low memory and safety-critical applications.

They are also defined as uint32_t, and therefore are not guaranteed to
hold a pointer.

Lastly, they are not portable solutions for SMP and uniprocessor systems,
like POSIX keys and TLS.

updates #2493.

8 files changed, 1 insertions, 14 deletions

diff --git a/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx821 b/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx821
index 54e7951f7d..36c5e82066 100644
--- a/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx821
+++ b/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx821
@@ -53,8 +53,6 @@ Column B: Data & instruction caches enabled (UPM/A: new burst r/w values) (2000-
    rtems_task_mode: no reschedule                                       70	  8
    rtems_task_mode: reschedule -- returns to caller                     75	 32
    rtems_task_mode: reschedule -- preempts caller                      292	 97
-   rtems_task_set_note                                                 112	 11
-   rtems_task_get_note                                                 113	 11
    rtems_clock_set                                                     250	 25
    rtems_clock_get                                                       6	  1
 
diff --git a/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx860 b/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx860
index 55d2b5b2c3..6bcb69d370 100644
--- a/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx860
+++ b/c/src/lib/libbsp/powerpc/mbx8xx/times-mbx860
@@ -53,8 +53,6 @@ Column B: Data & instruction caches enabled (UPM/A: new burst r/w values) (2000-
    rtems_task_mode: no reschedule                                       62	  9
    rtems_task_mode: reschedule -- returns to caller                     66	 25
    rtems_task_mode: reschedule -- preempts caller                      246	 69
-   rtems_task_set_note                                                  99	 11
-   rtems_task_get_note                                                 100	 23
    rtems_clock_set                                                     222	 35
    rtems_clock_get                                                       6	  1
 
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mcp750 b/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mcp750
index 2099edfd86..e99df570d9 100644
--- a/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mcp750
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mcp750
@@ -48,8 +48,6 @@ rtems_task_mode: obtain current mode_______________________________0.233
 rtems_task_mode: no reschedule_____________________________________0.231
 rtems_task_mode: reschedule -- returns to caller___________________1.711
 rtems_task_mode: reschedule -- preempts caller_____________________3.304
-rtems_task_get_note________________________________________________0.549
-rtems_task_set_note________________________________________________0.548
 rtems_task_wake_after: yield -- returns to caller__________________3.063
 rtems_task_wake_after: yields -- preempts caller___________________3.063
 rtems_task_wake_when_______________________________________________3.906
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mvme2307 b/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mvme2307
index 6e4677de8a..900ed19f8c 100644
--- a/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mvme2307
+++ b/c/src/lib/libbsp/powerpc/motorola_powerpc/times.mvme2307
@@ -57,8 +57,6 @@ Column Y:
    rtems_task_mode: no reschedule                                      3.766
    rtems_task_mode: reschedule -- returns to caller                    5.933
    rtems_task_mode: reschedule -- preempts caller                     22.613
-   rtems_task_set_note                                                10.115
-   rtems_task_get_note                                                10.236
    rtems_clock_set                                                    21.466
    rtems_clock_get                                                     2.286
 
diff --git a/c/src/lib/libbsp/powerpc/mpc8260ads/README b/c/src/lib/libbsp/powerpc/mpc8260ads/README
index e430a04247..43cb2d9846 100644
--- a/c/src/lib/libbsp/powerpc/mpc8260ads/README
+++ b/c/src/lib/libbsp/powerpc/mpc8260ads/README
@@ -184,8 +184,6 @@ Timing tests:
 	rtems_task_mode: no reschedule 6
 	rtems_task_mode: reschedule -- returns to caller 15
 	rtems_task_mode: reschedule -- preempts caller 43
-	rtems_task_get_note 13
-	rtems_task_set_note 12
 	rtems_task_wake_after: yield -- returns to caller 8
 	rtems_task_wake_after: yields -- preempts caller 30
 	rtems_task_wake_when: 49
diff --git a/c/src/lib/libbsp/powerpc/mpc8260ads/times b/c/src/lib/libbsp/powerpc/mpc8260ads/times
index a789de8822..ebc5ae8120 100644
--- a/c/src/lib/libbsp/powerpc/mpc8260ads/times
+++ b/c/src/lib/libbsp/powerpc/mpc8260ads/times
@@ -56,8 +56,6 @@ Column Y:
   rtems_task_mode: no reschedule                                         7  
   rtems_task_mode: reschedule -- returns to caller                      14 
   rtems_task_mode: reschedule -- preempts caller                        43 
-  rtems_task_set_note                                                   13  
-  rtems_task_get_note                                                   12  
   rtems_clock_set                                                       28 
   rtems_clock_get                                                        0
 
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c b/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c
index 67cd07f01b..bb3cbf604f 100644
--- a/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c
+++ b/c/src/lib/libbsp/powerpc/mvme5500/vectors/exceptionhandler.c
@@ -101,6 +101,7 @@ int			quiet=0;
     } else {
     /* retrieve the notepad which possibly holds an extention pointer */
     if (RTEMS_SUCCESSFUL==rtems_task_ident(RTEMS_SELF,RTEMS_LOCAL,&id) &&
+// FIXME: Deprecated use of Notepads. #2503.
 #if 0
 /* Must not use a notepad due to unknown initial value (notepad memory is allocated from the
  * workspace)!
diff --git a/c/src/lib/libbsp/powerpc/ss555/times b/c/src/lib/libbsp/powerpc/ss555/times
index 3052df9295..00f7c91f7a 100644
--- a/c/src/lib/libbsp/powerpc/ss555/times
+++ b/c/src/lib/libbsp/powerpc/ss555/times
@@ -51,8 +51,6 @@ Timer Source: Timebase register (TMBCLK = (4 MHz crystal / 4) = 1.0 Mhz)
    rtems_task_mode: no reschedule                                        5
    rtems_task_mode: reschedule -- returns to caller                      7
    rtems_task_mode: reschedule -- preempts caller                       37
-   rtems_task_set_note                                                  13
-   rtems_task_get_note                                                  13
    rtems_clock_set                                                      27
    rtems_clock_get                                                       1