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| author | Aun-Ali Zaidi <admin@kodeit.net> | 2015-12-23 14:44:02 -0600 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@oarcorp.com> | 2015-12-24 16:52:34 -0600 |
| commit | d5154d0f6a04f3b7ed59d9a09038576fe2640756 (patch) | |
| tree | 4b6dcf6e9b116223903afbc1b1141d28fb751848 /c/src/lib/libbsp/mips | |
| parent | score: Fix watchdog removal (diff) | |
| download | rtems-d5154d0f6a04f3b7ed59d9a09038576fe2640756.tar.bz2 | |
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.
Diffstat (limited to 'c/src/lib/libbsp/mips')
| -rw-r--r-- | c/src/lib/libbsp/mips/csb350/times | 2 | ||||
| -rw-r--r-- | c/src/lib/libbsp/mips/hurricane/times | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/c/src/lib/libbsp/mips/csb350/times b/c/src/lib/libbsp/mips/csb350/times index a677a7d660..d4331ba661 100644 --- a/c/src/lib/libbsp/mips/csb350/times +++ b/c/src/lib/libbsp/mips/csb350/times @@ -54,8 +54,6 @@ All tests were compiled with VARIANT=DEBUG 8 rtems_task_mode: no reschedule 847 8 rtems_task_mode: reschedule -- returns to caller 7803 8 rtems_task_mode: reschedule -- preempts caller 18542 - 8 rtems_task_set_note 1044 - 8 rtems_task_get_note 1046 8 rtems_clock_set 2777 8 rtems_clock_get 161 diff --git a/c/src/lib/libbsp/mips/hurricane/times b/c/src/lib/libbsp/mips/hurricane/times index ac027e20d8..974fbf797e 100644 --- a/c/src/lib/libbsp/mips/hurricane/times +++ b/c/src/lib/libbsp/mips/hurricane/times @@ -60,8 +60,6 @@ Column B:RTEMS compiled with 32 bit pointers and 32 bit unsigned32 types rtems_task_mode: no reschedule 0 49 rtems_task_mode: reschedule -- returns to caller 0 232 rtems_task_mode: reschedule -- preempts caller 0 687 - rtems_task_set_note 0 101 - rtems_task_get_note 0 103 rtems_clock_set 0 237 rtems_clock_get 0 16 |