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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 /cpukit/libmisc | |
| 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 'cpukit/libmisc')
| -rw-r--r-- | cpukit/libmisc/monitor/README | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/cpukit/libmisc/monitor/README b/cpukit/libmisc/monitor/README index 02c3bcbe88..4e466cf455 100644 --- a/cpukit/libmisc/monitor/README +++ b/cpukit/libmisc/monitor/README @@ -88,6 +88,5 @@ Sample output from 'task' command no ASRS It has no events. - It has a notepad value for notepad 15 which is 0x40606348 (this is the libc thread state) |