| Commit message (Collapse) | Author | Age | Files | Lines |
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Get region and lock allocator in _Region_Get_and_lock() in case the
region exists and unlock it in _Region_Unlock().
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This functions supports only local objects. Thus, drop the location
parameter which was unused by all callers.
Remove superfluous includes from Classic Region implementation.
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The expensive heap walks are superfluous due to the heap protection
enabled via RTEMS_DEBUG.
Update #2477.
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Use allocator mutex for objects allocate/free. This prevents that the
thread dispatch latency depends on the workspace/heap fragmentation.
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Move implementation specific parts of object.h and object.inl into new
header file objectimpl.h. The object.h contains now only the
application visible API.
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Move implementation specific parts of states.h and states.inl into new
header file statesimpl.h. The states.h contains now only the
application visible API.
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Move implementation specific parts of region.h and region.inl into new
header file regionimpl.h. The region.h contains now only the
application visible API.
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This patch is a task from GCI 2012 which improves the Doxygen
comments in the RTEMS source.
http://www.google-melange.com/gci/task/view/google/gci2012/8025203
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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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* ftpd/ftpd.c, libcsupport/src/geteuid.c, libcsupport/src/getgroups.c,
libcsupport/src/getpgrp.c, libcsupport/src/getpid.c,
libcsupport/src/getppid.c, libcsupport/src/setpgid.c,
libcsupport/src/setsid.c, libcsupport/src/utsname.c,
libmisc/stackchk/check.c, posix/include/rtems/posix/mqueue.h,
posix/inline/rtems/posix/cond.inl,
posix/inline/rtems/posix/mqueue.inl,
posix/inline/rtems/posix/mutex.inl,
posix/inline/rtems/posix/pthread.inl,
posix/inline/rtems/posix/semaphore.inl,
posix/inline/rtems/posix/timer.inl, posix/src/alarm.c,
posix/src/barrierattrdestroy.c, posix/src/barrierattrgetpshared.c,
posix/src/barrierattrinit.c, posix/src/barrierattrsetpshared.c,
posix/src/cleanuppop.c, posix/src/cleanuppush.c,
posix/src/clockgetcpuclockid.c, posix/src/clockgetenableattr.c,
posix/src/clockgetres.c, posix/src/clockgettime.c,
posix/src/clocksetenableattr.c, posix/src/clocksettime.c,
posix/src/cond.c, posix/src/condattrdestroy.c,
posix/src/condattrgetpshared.c, posix/src/condattrinit.c,
posix/src/condattrsetpshared.c, posix/src/condbroadcast.c,
posix/src/conddefaultattributes.c, posix/src/conddestroy.c,
posix/src/condinit.c, posix/src/condsignal.c,
posix/src/condsignalsupp.c, posix/src/condtimedwait.c,
posix/src/condwait.c, posix/src/condwaitsupp.c,
posix/src/keygetspecific.c, posix/src/keyrundestructors.c,
posix/src/keysetspecific.c, posix/src/mprotect.c, posix/src/mqueue.c,
posix/src/mqueuecreatesupp.c, posix/src/mqueuedeletesupp.c,
posix/src/mqueuegetattr.c, posix/src/mqueuenotify.c,
posix/src/mqueuereceive.c, posix/src/mqueuesend.c,
posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c,
posix/src/mqueuetimedreceive.c, posix/src/mqueuetimedsend.c,
posix/src/mqueuetranslatereturncode.c, posix/src/mqueueunlink.c,
posix/src/mutex.c, posix/src/mutexattrdestroy.c,
posix/src/mutexattrgetprioceiling.c,
posix/src/mutexattrgetprotocol.c, posix/src/mutexattrgetpshared.c,
posix/src/mutexattrinit.c, posix/src/mutexattrsetprioceiling.c,
posix/src/mutexattrsetprotocol.c, posix/src/mutexattrsetpshared.c,
posix/src/mutexdestroy.c, posix/src/mutexgetprioceiling.c,
posix/src/mutexinit.c, posix/src/mutexlock.c,
posix/src/mutexlocksupp.c, posix/src/mutexsetprioceiling.c,
posix/src/mutextimedlock.c, posix/src/mutextrylock.c,
posix/src/mutexunlock.c, posix/src/nanosleep.c, posix/src/psignal.c,
posix/src/psignalchecksignal.c,
posix/src/psignalclearprocesssignals.c,
posix/src/psignalclearsignals.c,
posix/src/psignalsetprocesssignals.c,
posix/src/psignalunblockthread.c, posix/src/pthreadinitthreads.c,
posix/src/rwlockattrdestroy.c, posix/src/rwlockattrgetpshared.c,
posix/src/rwlockattrinit.c, posix/src/rwlockattrsetpshared.c,
posix/src/semaphore.c, posix/src/semaphoredeletesupp.c,
posix/src/semaphorenametoid.c, posix/src/semaphorewaitsupp.c,
posix/src/semclose.c, posix/src/semdestroy.c,
posix/src/semgetvalue.c, posix/src/seminit.c, posix/src/semopen.c,
posix/src/sempost.c, posix/src/semtimedwait.c,
posix/src/semtrywait.c, posix/src/semunlink.c, posix/src/semwait.c,
posix/src/sysconf.c, posix/src/testcancel.c, posix/src/ualarm.c,
rtems/src/clockgetuptime.c, rtems/src/clockset.c,
rtems/src/clocksetnsecshandler.c, rtems/src/clocktick.c,
rtems/src/clocktodtoseconds.c, rtems/src/clocktodvalidate.c,
rtems/src/dpmem.c, rtems/src/dpmemcreate.c, rtems/src/dpmemdelete.c,
rtems/src/dpmemexternal2internal.c, rtems/src/dpmemident.c,
rtems/src/dpmeminternal2external.c, rtems/src/event.c,
rtems/src/eventmp.c, rtems/src/eventreceive.c,
rtems/src/eventseize.c, rtems/src/eventsend.c,
rtems/src/eventsurrender.c, rtems/src/eventtimeout.c, rtems/src/mp.c,
rtems/src/msg.c, rtems/src/msgmp.c, rtems/src/msgqallocate.c,
rtems/src/msgqbroadcast.c, rtems/src/msgqcreate.c,
rtems/src/msgqdelete.c, rtems/src/msgqflush.c,
rtems/src/msgqgetnumberpending.c, rtems/src/msgqident.c,
rtems/src/msgqreceive.c, rtems/src/msgqtranslatereturncode.c,
rtems/src/msgqurgent.c, rtems/src/part.c, rtems/src/partcreate.c,
rtems/src/partdelete.c, rtems/src/partgetbuffer.c,
rtems/src/partident.c, rtems/src/partmp.c,
rtems/src/partreturnbuffer.c, rtems/src/ratemon.c,
rtems/src/ratemoncancel.c, rtems/src/ratemoncreate.c,
rtems/src/ratemondelete.c, rtems/src/ratemongetstatistics.c,
rtems/src/ratemongetstatus.c, rtems/src/ratemonident.c,
rtems/src/ratemonperiod.c, rtems/src/ratemonresetstatistics.c,
rtems/src/ratemontimeout.c, rtems/src/region.c,
rtems/src/regioncreate.c, rtems/src/regiondelete.c,
rtems/src/regionextend.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionident.c,
rtems/src/regionmp.c, rtems/src/regionprocessqueue.c,
rtems/src/regionresizesegment.c, rtems/src/regionreturnsegment.c,
rtems/src/rtemsobjectgetclassicname.c, rtems/src/rtemstimer.c,
rtems/src/sem.c, rtems/src/semcreate.c, rtems/src/semdelete.c,
rtems/src/semflush.c, rtems/src/semident.c, rtems/src/semmp.c,
rtems/src/semobtain.c, rtems/src/semrelease.c,
rtems/src/semtranslatereturncode.c, rtems/src/signal.c,
rtems/src/signalcatch.c, rtems/src/signalmp.c,
rtems/src/signalsend.c, rtems/src/taskcreate.c,
rtems/src/taskdelete.c, rtems/src/taskgetnote.c,
rtems/src/taskident.c, rtems/src/taskinitusers.c,
rtems/src/taskissuspended.c, rtems/src/taskmp.c,
rtems/src/taskrestart.c, rtems/src/taskresume.c, rtems/src/tasks.c,
rtems/src/tasksetnote.c, rtems/src/tasksetpriority.c,
rtems/src/taskstart.c, rtems/src/tasksuspend.c,
rtems/src/taskwakeafter.c, rtems/src/taskwakewhen.c,
rtems/src/timercancel.c, rtems/src/timercreate.c,
rtems/src/timerdelete.c, rtems/src/timerfireafter.c,
rtems/src/timerfirewhen.c, rtems/src/timergetinfo.c,
rtems/src/timerident.c, rtems/src/timerreset.c,
rtems/src/timerserverfireafter.c, rtems/src/timerserverfirewhen.c,
sapi/src/debug.c, sapi/src/extension.c, sapi/src/posixapi.c,
sapi/src/rtemsapi.c, score/src/apiext.c, score/src/chain.c,
score/src/corebarrier.c, score/src/corebarrierrelease.c,
score/src/corebarrierwait.c, score/src/coremsgbroadcast.c,
score/src/coremsgclose.c, score/src/coremsgflush.c,
score/src/coremsgflushsupp.c, score/src/coremsgflushwait.c,
score/src/coremsginsert.c, score/src/coremsgseize.c,
score/src/coremsgsubmit.c, score/src/coremutex.c,
score/src/coremutexflush.c, score/src/coremutexseize.c,
score/src/corerwlock.c, score/src/corerwlockobtainread.c,
score/src/corerwlockobtainwrite.c, score/src/corerwlockrelease.c,
score/src/coresem.c, score/src/coresemflush.c,
score/src/coresemsurrender.c, score/src/corespinlock.c,
score/src/corespinlockrelease.c, score/src/corespinlockwait.c,
score/src/coretod.c, score/src/coretodset.c,
score/src/coretodtickle.c, score/src/heap.c, score/src/interr.c,
score/src/mpci.c, score/src/objectallocate.c,
score/src/objectextendinformation.c, score/src/objectfree.c,
score/src/objectget.c, score/src/objectgetisr.c,
score/src/objectgetnext.c, score/src/objectgetnoprotection.c,
score/src/objectinitializeinformation.c, score/src/objectmp.c,
score/src/objectnametoid.c, score/src/objectnametoidstring.c,
score/src/objectshrinkinformation.c, score/src/rbtree.c,
score/src/threaddelayended.c, score/src/threadhandler.c,
score/src/threadinitialize.c, score/src/threadloadenv.c,
score/src/threadmp.c, score/src/threadq.c,
score/src/threadqdequeue.c, score/src/threadqdequeuefifo.c,
score/src/threadqdequeuepriority.c, score/src/threadqenqueue.c,
score/src/threadqenqueuefifo.c, score/src/threadqenqueuepriority.c,
score/src/threadqextract.c, score/src/threadqextractfifo.c,
score/src/threadqextractpriority.c,
score/src/threadqextractwithproxy.c, score/src/threadqfirst.c,
score/src/threadqfirstfifo.c, score/src/threadqfirstpriority.c,
score/src/threadqflush.c, score/src/threadqrequeue.c,
score/src/threadstackallocate.c, score/src/threadstartmultitasking.c,
score/src/watchdog.c, score/src/watchdogadjust.c,
score/src/watchdoginsert.c, score/src/watchdogremove.c,
score/src/watchdogtickle.c: Remove /*PAGE markers which were
interpreted by a long dead print script.
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* rtems/include/rtems/rtems/dpmem.h, rtems/include/rtems/rtems/event.h,
rtems/include/rtems/rtems/message.h,
rtems/include/rtems/rtems/part.h,
rtems/include/rtems/rtems/ratemon.h,
rtems/include/rtems/rtems/region.h,
rtems/include/rtems/rtems/semmp.h,
rtems/include/rtems/rtems/signal.h,
rtems/include/rtems/rtems/signalmp.h,
rtems/include/rtems/rtems/tasks.h, rtems/include/rtems/rtems/timer.h,
rtems/src/dpmemcreate.c, rtems/src/dpmemdelete.c,
rtems/src/dpmemexternal2internal.c, rtems/src/dpmemident.c,
rtems/src/dpmeminternal2external.c, rtems/src/eventsend.c,
rtems/src/msgqbroadcast.c, rtems/src/msgqcreate.c,
rtems/src/msgqdelete.c, rtems/src/msgqflush.c,
rtems/src/msgqgetnumberpending.c, rtems/src/msgqident.c,
rtems/src/msgqreceive.c, rtems/src/msgqsend.c,
rtems/src/msgqurgent.c, rtems/src/partcreate.c,
rtems/src/partdelete.c, rtems/src/partgetbuffer.c,
rtems/src/partident.c, rtems/src/partreturnbuffer.c,
rtems/src/ratemoncancel.c, rtems/src/ratemoncreate.c,
rtems/src/ratemondelete.c, rtems/src/ratemongetstatistics.c,
rtems/src/ratemongetstatus.c, rtems/src/ratemonident.c,
rtems/src/ratemonperiod.c, rtems/src/ratemonresetstatistics.c,
rtems/src/regioncreate.c, rtems/src/regiondelete.c,
rtems/src/regionextend.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionident.c,
rtems/src/regionresizesegment.c, rtems/src/regionreturnsegment.c,
rtems/src/signalmp.c, rtems/src/signalsend.c, rtems/src/taskcreate.c,
rtems/src/taskdelete.c, rtems/src/taskgetnote.c,
rtems/src/taskident.c, rtems/src/taskissuspended.c,
rtems/src/taskrestart.c, rtems/src/taskresume.c,
rtems/src/tasksetnote.c, rtems/src/tasksetpriority.c,
rtems/src/tasksuspend.c, rtems/src/timercancel.c,
rtems/src/timercreate.c, rtems/src/timerdelete.c,
rtems/src/timerfireafter.c, rtems/src/timerfirewhen.c,
rtems/src/timergetinfo.c, rtems/src/timerident.c,
rtems/src/timerreset.c, rtems/src/timerserverfireafter.c,
rtems/src/timerserverfirewhen.c: Changed Objects_Id to rtems_id in
the public API.
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* rtems/src/regiondelete.c, rtems/src/regionextend.c,
rtems/src/regiongetfreeinfo.c, rtems/src/regiongetinfo.c,
rtems/src/regiongetsegment.c, rtems/src/regionresizesegment.c,
rtems/src/regionreturnsegment.c: Avoid initializing status code. This
generates dead code on some targets. Add default case to eliminate
unitialized variable warning.
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* rtems/src/ratemonreportstatistics.c: owner field is always set so
safe to use. Reformat.
* rtems/src/regionresizesegment.c: Always evaluate the blocked queue
if the resize succeeded.
* rtems/src/tasksetnote.c: Spacing.
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* rtems/src/regiondelete.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/regionreturnsegment.c: Remove warnings.
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* rtems/src/regiondelete.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/regionreturnsegment.c: Do not initialize return status to
RTEMS_INTERNAL_ERROR.
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* libcsupport/src/free.c, libmisc/stackchk/check.c,
rtems/include/rtems/rtems/region.h, rtems/src/regioncreate.c,
rtems/src/regionextend.c, rtems/src/regiongetinfo.c,
rtems/src/regiongetsegment.c, rtems/src/regiongetsegmentsize.c,
rtems/src/regionresizesegment.c, score/src/pheapallocate.c,
score/src/pheapallocatealigned.c, score/src/pheapextend.c,
score/src/pheapfree.c, score/src/pheapgetblocksize.c,
score/src/pheapgetfreeinfo.c, score/src/pheapgetinfo.c,
score/src/pheapgetsize.c, score/src/pheapinit.c,
score/src/pheapresizeblock.c, score/src/pheapwalk.c:
Update for heap API changes.
* score/include/rtems/score/apimutex.h,
score/include/rtems/score/object.h: Documentation.
* score/include/rtems/score/heap.h,
score/include/rtems/score/protectedheap.h,
score/inline/rtems/score/heap.inl, score/src/heap.c,
score/src/heapallocate.c, score/src/heapallocatealigned.c,
score/src/heapextend.c, score/src/heapfree.c,
score/src/heapgetfreeinfo.c, score/src/heapgetinfo.c,
score/src/heapresizeblock.c, score/src/heapsizeofuserarea.c,
score/src/heapwalk.c: Overall cleanup. Added boundary constraint to
allocation function. More changes follow.
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* libcsupport/src/realloc.c, rtems/include/rtems/rtems/region.h,
rtems/src/regioncreate.c, rtems/src/regionextend.c,
rtems/src/regiongetsegment.c, rtems/src/regiongetsegmentsize.c,
rtems/src/regionmp.c, rtems/src/regionresizesegment.c,
sapi/include/rtems/config.h, score/include/rtems/score/heap.h,
score/include/rtems/score/protectedheap.h, score/src/heap.c,
score/src/heapallocate.c, score/src/heapallocatealigned.c,
score/src/heapextend.c, score/src/heapresizeblock.c,
score/src/heapsizeofuserarea.c, score/src/pheapallocate.c,
score/src/pheapallocatealigned.c, score/src/pheapextend.c,
score/src/pheapgetblocksize.c, score/src/pheapresizeblock.c: Change
sizes of heap/region and allocated objects in heap to intptr_t so
they can be larger than a single allocatable object (e.g. size_t).
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* rtems/include/rtems/rtems/region.h,
rtems/include/rtems/rtems/support.h,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/workspace.c: Revert ssize_t patch.
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* libcsupport/src/malloc_statistics_helpers.c,
libcsupport/src/realloc.c, rtems/include/rtems/rtems/region.h,
rtems/include/rtems/rtems/support.h,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/workspace.c, sapi/include/confdefs.h,
score/include/rtems/score/heap.h,
score/include/rtems/score/protectedheap.h,
score/include/rtems/score/wkspace.h, score/src/heap.c,
score/src/heapallocate.c, score/src/heapallocatealigned.c,
score/src/heapextend.c, score/src/heapresizeblock.c,
score/src/heapsizeofuserarea.c, score/src/pheapgetblocksize.c,
score/src/wkspace.c: Change size_t to ssize_t on all Heap, Workspace
and Region calls. On 16-bit architectures, size_t can be 16-bits
which would limit sizes to 64K.
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* rtems/src/regioncreate.c, rtems/src/regiondelete.c,
rtems/src/regionextend.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/regionreturnsegment.c: Restructed to move the OBJECTS_LOCAL
case to the top of the switch statement, have a single exit with one
call to _RTEMS_Unlock_allocator and eliminate the fall-through return
of RTEMS_INTERNAL_ERROR. These changes produced simplier assembly
code and allowed for complete test coverage.
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* itron/src/can_wup.c, itron/src/chg_pri.c, itron/src/del_mbf.c,
itron/src/del_mbx.c, itron/src/del_sem.c, itron/src/del_tsk.c,
itron/src/frsm_tsk.c, itron/src/ref_mbf.c, itron/src/ref_mbx.c,
itron/src/ref_sem.c, itron/src/ref_tsk.c, itron/src/rel_wai.c,
itron/src/rsm_tsk.c, itron/src/sig_sem.c, itron/src/snd_mbx.c,
itron/src/sta_tsk.c, itron/src/sus_tsk.c, itron/src/ter_tsk.c,
itron/src/trcv_mbf.c, itron/src/trcv_mbx.c, itron/src/tsnd_mbf.c,
itron/src/twai_sem.c, posix/src/cancel.c, posix/src/conddestroy.c,
posix/src/condinit.c, posix/src/condsignalsupp.c,
posix/src/condwaitsupp.c, posix/src/keydelete.c,
posix/src/keygetspecific.c, posix/src/keysetspecific.c,
posix/src/mqueueclose.c, posix/src/mqueuegetattr.c,
posix/src/mqueuenotify.c, posix/src/mqueuerecvsupp.c,
posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c,
posix/src/mutexdestroy.c, posix/src/mutexgetprioceiling.c,
posix/src/mutexinit.c, posix/src/mutexlocksupp.c,
posix/src/mutexsetprioceiling.c, posix/src/mutexunlock.c,
posix/src/pbarrierdestroy.c, posix/src/pbarrierwait.c,
posix/src/prwlockdestroy.c, posix/src/prwlockrdlock.c,
posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c,
posix/src/prwlocktryrdlock.c, posix/src/prwlocktrywrlock.c,
posix/src/prwlockunlock.c, posix/src/prwlockwrlock.c,
posix/src/pspindestroy.c, posix/src/pspinlock.c,
posix/src/pspintrylock.c, posix/src/pspinunlock.c,
posix/src/pthreaddetach.c, posix/src/pthreadequal.c,
posix/src/pthreadgetschedparam.c, posix/src/pthreadjoin.c,
posix/src/pthreadkill.c, posix/src/pthreadsetschedparam.c,
posix/src/ptimer1.c, posix/src/semaphorewaitsupp.c,
posix/src/semclose.c, posix/src/semdestroy.c,
posix/src/semgetvalue.c, posix/src/sempost.c, posix/src/types.c,
rtems/src/barrierdelete.c, rtems/src/barrierrelease.c,
rtems/src/barrierwait.c, rtems/src/dpmemdelete.c,
rtems/src/dpmemexternal2internal.c,
rtems/src/dpmeminternal2external.c, rtems/src/eventsend.c,
rtems/src/eventtimeout.c, rtems/src/msgqbroadcast.c,
rtems/src/msgqdelete.c, rtems/src/msgqflush.c,
rtems/src/msgqgetnumberpending.c, rtems/src/msgqreceive.c,
rtems/src/msgqsend.c, rtems/src/msgqurgent.c, rtems/src/partdelete.c,
rtems/src/partgetbuffer.c, rtems/src/partreturnbuffer.c,
rtems/src/ratemoncancel.c, rtems/src/ratemondelete.c,
rtems/src/ratemongetstatistics.c, rtems/src/ratemongetstatus.c,
rtems/src/ratemonperiod.c, rtems/src/ratemonresetstatistics.c,
rtems/src/ratemontimeout.c, rtems/src/regiondelete.c,
rtems/src/regionextend.c, rtems/src/regiongetfreeinfo.c,
rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c,
rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c,
rtems/src/regionreturnsegment.c, rtems/src/semdelete.c,
rtems/src/semflush.c, rtems/src/semobtain.c, rtems/src/semrelease.c,
rtems/src/signalsend.c, rtems/src/taskdelete.c,
rtems/src/taskgetnote.c, rtems/src/taskissuspended.c,
rtems/src/taskrestart.c, rtems/src/taskresume.c,
rtems/src/tasksetnote.c, rtems/src/tasksetpriority.c,
rtems/src/taskstart.c, rtems/src/tasksuspend.c,
rtems/src/taskvariableadd.c, rtems/src/taskvariabledelete.c,
rtems/src/taskvariableget.c, rtems/src/timercancel.c,
rtems/src/timerdelete.c, rtems/src/timerfireafter.c,
rtems/src/timerfirewhen.c, rtems/src/timergetinfo.c,
rtems/src/timerreset.c, rtems/src/timerserverfireafter.c,
rtems/src/timerserverfirewhen.c, sapi/src/extensiondelete.c,
score/include/rtems/score/object.h, score/src/corerwlocktimeout.c,
score/src/mpci.c, score/src/objectgetnameasstring.c,
score/src/threaddelayended.c, score/src/threadqtimeout.c: When
multiprocessing is disabled, do not even allow the constant
OBJECTS_REMOTE to appear in the source. Even at -O2, the presence of
a case OBJECTS_REMOTE in each id->pointer _Objects_Get switch results
in the generation of binary code which can NOT be reached.
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PR 746/rtems
Optimize realloc(). The problem is that realloc() can neither grow
nor shrink efficiently the current memory region without support
from underlying heap/region modules. The patch introduces one new
routine for each of heap and region modules, _Heap_Resize_block(),
and rtems_region_resize_segment(), respectively, and uses the
latter to optimize realloc().
The implementation of _Heap_Resize_block() lead to changing of the
heap allocation strategy: now the heap manager, when splits larger
free block into used and new free parts, makes the first part of
the block used, not the last one as it was before. Due to this new
strategy, _Heap_Resize_block() never needs to change the user
pointer.
Caveat: unlike previous heap implementation, first few bytes of
the contents of the memory allocated from the heap are now almost
never all zero. This can trigger bugs in client code that have not
been visible before this patch.
* libcsupport/src/malloc.c (realloc): try to resize segment in
place using new rtems_region_resize_segment() routine before
falling back to the malloc()/free() method.
* score/src/heap.c:
(_Heap_Initialize): change initial heap layout to reflect new
allocation strategy of using of the lower part of a previously
free block when splitting it for the purpose of allocation.
(_Heap_Block_allocate): when split, make the lower part used, and
leave the upper part free. Return type changed from Heap_Block* to
uint32_t.
* score/include/rtems/score/heap.h:
(Heap_Statistics): added 'resizes' field.
(Heap_Resize_status): new enum.
(_Heap_Resize_block): new routine.
(_Heap_Block_allocate): return type changed from Heap_Block* to
uint32_t.
* score/src/heapwalk.c: reflect new heap layout in checks.
* score/src/heapsizeofuserarea.c: more assertions added.
* score/src/heapresizeblock.c: new file.
(_Heap_Resize_block): new routine.
* score/src/heapfree.c: reverse the checks _Heap_Is_block_in() and
_Heap_Is_prev_used() on entry to be in this order.
* score/src/heapallocate.c, score/src/heapallocatealigned.c:
ignore return value of _Heap_Block_allocate().
* score/Makefile.am (HEAP_C_FILES): added src/heapresizeblock.c.
* rtems/include/rtems/rtems/region.h:
(rtems_region_resize_segment): new interface routine.
(_Region_Process_queue): new internal routine called from
rtems_region_resize_segment() and rtems_region_return_segment().
* rtems/src/regionreturnsegment.c: move queue management code into
the new internal routine _Region_Process_queue() and call it.
* rtems/src/regionresizesegment.c: new file.
(rtems_region_resize_segment): new interface routine.
* rtems/src/regionprocessqueue.c: new file.
(_Region_Process_queue): new internal routine containing queue
management code factored out from 'regionreturnsegment.c'.
* rtems/Makefile.am (REGION_C_FILES): Added
src/regionresizesegment.c, and src/regionprocessqueue.c.
* ada/rtems.adb, ada/rtems.ads: Added Region_Resize_Segment.
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