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closes #2812.
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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.
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Add rtems_interrupt_local_disable|enable() as suggested by Pavel Pisa to
emphasize that interrupts are only disabled on the current processor.
Do not define the rtems_interrupt_disable|enable|flash() macros and
functions on SMP configurations since they don't ensure system wide
mutual exclusion.
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Update list.
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Interrupt locks are low-level lock to protect critical sections accessed
by threads and interrupt service routines.
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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PR 1568/doc
* user/intr.t: Fix list of services callable from ISR.
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PR 1387/doc
* user/intr.t: Add Interrupt Manager services to list of services
callable from ISR.
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PR 1288/doc
* user/intr.t: Update callable from ISR section.
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* user/bsp.t, user/conf.t, user/init.t, user/intr.t, user/overview.t,
user/timer.t: Correct default values. Make it clear that confdefs.h
calculates the memory required for you.
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* user/barrier.t, user/clock.t, user/concepts.t, user/cpuuse.t,
user/init.t, user/intr.t, user/io.t, user/mp.t, user/rtmon.t,
user/sem.t, user/stackchk.t, user/task.t, user/timer.t: Updated the
Ada documentation to reflect the current binding.
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* intr.t: Per PR165, now correctly states that passing a NULL
pointer for the return argument is an error.
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* SUPPORT, LICENSE: New files.
* Numerous files touched as part of merging the 4.5 branch
onto the mainline development trunk and ensuring that the
script that cuts snapshots and releases works on the documentation.
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including a new section in the Getting Started called "Where to
Go From Here", lots of index entries added, and more configuration
table information.
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<ccj@acm.org> suggestion.
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blows up both makeinfo and texi2dvi. So I have commented them out.
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and all directives start with rtems_.
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to be correct in either C or Ada.
Added the interrupt disable, enable, flash, and is in progress directives.
changed "97" to "1997"
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