PR 1291/cpukit
* itron/inline/rtems/itron/semaphore.inl, itron/src/twai_sem.c,
posix/include/mqueue.h, posix/include/rtems/posix/mqueue.h,
posix/include/rtems/posix/semaphore.h,
posix/include/rtems/posix/time.h, posix/src/condtimedwait.c,
posix/src/mqueuereceive.c, posix/src/mqueuerecvsupp.c,
posix/src/mqueuesend.c, posix/src/mqueuesendsupp.c,
posix/src/mqueuetimedreceive.c, posix/src/mqueuetimedsend.c,
posix/src/mutextimedlock.c, posix/src/mutextranslatereturncode.c,
posix/src/posixtimespecabsolutetimeout.c,
posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c,
posix/src/semaphoretranslatereturncode.c,
posix/src/semaphorewaitsupp.c, posix/src/semtimedwait.c,
posix/src/semtrywait.c, posix/src/semwait.c,
posix/src/sigtimedwait.c, posix/src/timersettime.c,
posix/src/ualarm.c, rtems/src/semobtain.c,
rtems/src/semtranslatereturncode.c,
score/include/rtems/score/coremutex.h,
score/include/rtems/score/coresem.h, score/src/coresemseize.c: This
patch addresses issues on implementation of the timeout on the
following POSIX services. Some of these services incorrectly took a
timeout as a relative time. Others would compute a 0 delta to timeout
if the absolute time and the current time were equal and thus
incorrectly block the caller forever. The root of the confusion is
that POSIX specifies that if the timeout is incorrect (e.g. in the
past, is now, or is numerically invalid), that it does not matter if
the call would succeed without blocking. This is in contrast to RTEMS
programming style where all errors are checked before any critical
sections are entered. This fix implemented a more uniform way of
handling POSIX absolute time timeouts.
+ pthread_cond_timedwait - could block forever
+ mq_timedreceive - used relative not absolute time
+ mq_timedsend - used relative not absolute time
+ pthread_mutex_timedlock - used relative not absolute time
+ pthread_rwlock_timedrdlock- used relative not absolute time
+ pthread_rwlock_timedwrlock- used relative not absolute time
+ sem_timedwait - could block forever
PR 1277/networking
* libnetworking/netinet/in_cksum_i386.h: Use q instead of r in
constraint for assembly language. This restricts the register choice
to the a-d registers.
* httpd/Makefile.am, httpd/preinstall.am,
rtems/src/semtranslatereturncode.c: rtems_webserver.h must be
installed. It is the initialization interface for both GoAhead and
Simple HTTPD.
Miscellaneous changes made after a review against the POSIX spec.
* posix/src/pbarrierinit.c, posix/src/prwlockinit.c: If the caller
passes a NULL in the attributes parameter, default attributes are used.
* posix/src/prwlockdestroy.c: If there is at least one thread
waiting, do not allow deletion.
* posix/src/prwlockwrlock.c: Corrected parameter passed to the core
operation used to obtain a RWLock for writing.
* posix/src/pspinlocktranslatereturncode.c,
score/include/rtems/score/corespinlock.h,
score/src/corespinlockrelease.c: If the current thread is not the
holder of the lock, do not allow an unlock and return EPERM.
* score/src/corerwlockobtainwrite.c: Corrected to use the operation
for queueing with a timeout handler.
* score/cpu/sparc/cpu.c, score/cpu/sparc/rtems/score/cpu.h,
score/include/rtems/score/context.h, score/src/threadhandler.c: Fix
stack so gdb backtrace does not print corrupted frame message after
_Thread_Handler. Daniel Hellstrom <daniel@gaisler.com> provided the
SPARC implementation and I made it more general.
* libmisc/cpuuse/cpuusagereport.c, rtems/src/ratemonreportstatistics.c:
Cleaned up reports and fixed a bug related the printf format which
resulted in lack of leading zeroes and misleading magnitude.
* score/src/timespecdivide.c: Fixed bugs related to zero divide case.
* libcsupport/src/assoc.c: Removed. Accidentally included routine
also in another file. Mistake after splitting.
* libcsrc/Makefile.am: Reflect file removal.
* libmisc/stackchk/check.c: Eliminate output with little information.
Always print a blown message using the same routine. Now works with
GNAT RTS -fstack-checking if you have patch for the RTEMS specific
support in your GCC version.
PR 1258/rtems
* cpukit/score/src/heapallocatealigned.c (block_allocate): New routine.
* cpukit/score/src/heapallocatealigned.c (_Heap_Allocate_aligned):
Use block_allocate() instead of _Heap_Block_allocate(). Replace
_Heap_Head(the_heap)->next with equivalent _Heap_First(the_heap).
* cpukit/score/src/heap.c (_Heap_Allocate): fix comments according
to changed block split strategy in _Heap_Allocate_aligned().
* libcsupport/src/malloc.c: If RTEMS_HEAP_DEBUG is defined, add heap
walk on init, malloc, and free. The ability to walk the heap appears
to disappeared during the rework of the C Program heap to skip the
Region.
* score/src/heap.c: Style.
* score/src/heapwalk.c: Add more information to prints.
* score/src/pheapwalk.c: Do not lock allocator mutex if dispatching
is disabled.
* libcsupport/Makefile.am, libcsupport/src/printk.c:
* libcsupport/src/printk_plugin.c: New file.
include/rtems/bspIo.h, libmisc/cpuuse/cpuusagereport.c,
libmisc/cpuuse/cpuuse.h, libmisc/stackchk/check.c,
libmisc/stackchk/stackchk.h: rtems/include/rtems/rtems/ratemon.h,
rtems/src/ratemonreportstatistics.c: Added capability to specify
your own "printf" routine to various reporting functions. This
added an XXX_with_plugin as the underlying implementation for
+ rtems_rate_monotonic_report_statistics
+ rtems_stack_checker_report_usage
+ rtems_cpu_usage_report
As demonstration, the http netdemo can now print out stack
and cpu usage reports.
