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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/arm/csb337 | |
| 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/arm/csb337')
| -rw-r--r-- | c/src/lib/libbsp/arm/csb337/times | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/c/src/lib/libbsp/arm/csb337/times b/c/src/lib/libbsp/arm/csb337/times index 29421b0ed8..be051976b2 100644 --- a/c/src/lib/libbsp/arm/csb337/times +++ b/c/src/lib/libbsp/arm/csb337/times @@ -54,8 +54,6 @@ All tests were compiled with VARIANT=DEBUG 8 rtems_task_mode: no reschedule 5998 5995 2645 8 rtems_task_mode: reschedule -- returns to caller 12110 11764 6055 8 rtems_task_mode: reschedule -- preempts caller 33043 34773 18338 - 8 rtems_task_set_note 11869 11871 4356 - 8 rtems_task_get_note 12092 12087 4397 8 rtems_clock_set 33141 33145 10160 8 rtems_clock_get 2920 2921 811 |