| Commit message (Collapse) | Author | Age | Files | Lines |
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Do not allocate the scheduler control structures from the workspace.
This is a preparation step for configuration of clustered/partitioned
schedulers on SMP.
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Scheduler operations must be free of a global scheduler context to
enable partitioned/clustered scheduling.
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Issue a fatal error in case a thread is deleted which still owns
resources (e.g. a binary semaphore with priority inheritance or ceiling
protocol). The resource count must be checked quite late since RTEMS
task variable destructors, POSIX key destructors, POSIX cleanup handler,
the Newlib thread termination extension or other thread termination
extensions may release resources. In this context it would be quite
difficult to return an error status to the caller.
An alternative would be to place threads with a non-zero resource count
not on the zombie chain. Thus we have a resource leak instead of a
fatal error. The terminator thread can see this error if we return an
RTEMS_RESOURCE_IN_USE status for the rtems_task_delete() for example.
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This fixes an integer underflow problem in case resources are released
after a thread restart.
Add new test sptests/spthreadlife01.
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The thread deletion is now supported on SMP.
This change fixes the following PRs:
PR1814: SMP race condition between stack free and dispatch
PR2035: psxcancel reveals NULL pointer access in _Thread_queue_Extract()
The POSIX cleanup handler are now called in the right context (should be
called in the context of the terminating thread).
http://pubs.opengroup.org/onlinepubs/009695399/functions/xsh_chap02_09.html
Add a user extension the reflects a thread termination event. This is
used to reclaim the Newlib reentrancy structure (may use file
operations), the POSIX cleanup handlers and the POSIX key destructors.
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Replace _Thread_Reset() with _Thread_Start_life_change(). This function
can be later used for the _Thread_Close() implementation.
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The executing thread will be later used for a common implementation with
_Thread_Close().
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Run the thread restart extensions in the context of the restarted
thread. Run them with thread dispatching enabled.
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Move thread entry parameters out of _Thread_Reset() to enable
re-usablity of this function.
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The thread restart is now supported on SMP. New test
smptests/smpthreadlife01.
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Use a per-CPU thread dispatch disable level. So instead of one global
thread dispatch disable level we have now one instance per processor.
This is a major performance improvement for SMP. On non-SMP
configurations this may simplifiy the interrupt entry/exit code.
The giant lock is still present, but it is now decoupled from the thread
dispatching in _Thread_Dispatch(), _Thread_Handler(),
_Thread_Restart_self() and the interrupt entry/exit. Access to the
giant lock is now available via _Giant_Acquire() and _Giant_Release().
The giant lock is still implicitly acquired via
_Thread_Dispatch_decrement_disable_level().
The giant lock is only acquired for high-level operations in interrupt
handlers (e.g. release of a semaphore, sending of an event).
As a side-effect this change fixes the lost thread dispatch necessary
indication bug in _Thread_Dispatch().
A per-CPU thread dispatch disable level greatly simplifies the SMP
support for the interrupt entry/exit code since no spin locks have to be
acquired in this area. It is only necessary to get the current
processor index and use this to calculate the address of the own per-CPU
control. This reduces the interrupt latency considerably.
All elements for the interrupt entry/exit code are now part of the
Per_CPU_Control structure: thread dispatch disable level, ISR nest level
and thread dispatch necessary. Nothing else is required (except CPU
port specific stuff like on SPARC).
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Move implementation specific parts of thread.h and thread.inl into new
header file threadimpl.h. The thread.h contains now only the
application visible API.
Remove superfluous header file includes from various files.
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This patch is a task from GCI 2012 which improves the Doxygen
comments in the RTEMS source.
https://google-melange.appspot.com/gci/task/view/google/gci2012/7978208
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This file contains the parts of <rtems/score/userext.h> that are only
necessary for the RTEMS implementation.
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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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* include/rtems/bspIo.h, include/rtems/concat.h, include/rtems/irq.h,
score/cpu/i386/rtems/score/idtr.h,
score/cpu/powerpc/rtems/powerpc/registers.h,
score/src/objectidtoname.c, score/src/schedulerpriorityblock.c,
score/src/schedulerpriorityschedule.c,
score/src/schedulerpriorityunblock.c,
score/src/schedulerpriorityyield.c, score/src/thread.c,
score/src/threadchangepriority.c, score/src/threadclearstate.c,
score/src/threadclose.c, score/src/threadcreateidle.c,
score/src/threaddelayended.c, score/src/threaddispatch.c,
score/src/threadget.c, score/src/threadhandler.c,
score/src/threadinitialize.c, score/src/threadloadenv.c,
score/src/threadready.c, score/src/threadreset.c,
score/src/threadrestart.c, score/src/threadresume.c,
score/src/threadsetpriority.c, score/src/threadsetstate.c,
score/src/threadsettransient.c, score/src/threadstackallocate.c,
score/src/threadstackfree.c, score/src/threadstart.c,
score/src/threadstartmultitasking.c, score/src/threadsuspend.c,
score/src/threadtickletimeslice.c, score/src/threadyieldprocessor.c:
Fix typo where license said found in found in.
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* libmisc/monitor/monitor.h, rtems/include/rtems/rtems/tasks.h,
score/include/rtems/score/thread.h, score/src/threadreset.c,
score/src/threadrestart.c, score/src/threadstart.c: New type
Thread_Entry_numeric_type for numeric arguments in thread entry
functions with at least one numeric argument.
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* score/src/Unlimited.txt, score/src/chain.c, score/src/coremsg.c,
score/src/coremsgbroadcast.c, score/src/coremsgclose.c,
score/src/coremsgflush.c, score/src/coremsgflushsupp.c,
score/src/coremsgseize.c, score/src/coremsgsubmit.c,
score/src/coremutex.c, score/src/coremutexflush.c,
score/src/coresem.c, score/src/coresemflush.c, score/src/coretod.c,
score/src/coretodtickle.c, score/src/coretodtoseconds.c,
score/src/coretodvalidate.c, score/src/heap.c,
score/src/heapallocate.c, score/src/heapextend.c,
score/src/heapfree.c, score/src/heapsizeofuserarea.c,
score/src/interr.c, score/src/iterateoverthreads.c,
score/src/mpci.c, score/src/object.c, score/src/objectallocate.c,
score/src/objectallocatebyindex.c, score/src/objectclearname.c,
score/src/objectcomparenameraw.c,
score/src/objectcomparenamestring.c, score/src/objectcopynameraw.c,
score/src/objectcopynamestring.c,
score/src/objectextendinformation.c, score/src/objectfree.c,
score/src/objectget.c, score/src/objectgetbyindex.c,
score/src/objectgetisr.c, score/src/objectgetnoprotection.c,
score/src/objectidtoname.c, score/src/objectinitializeinformation.c,
score/src/objectmp.c, score/src/objectnametoid.c,
score/src/objectshrinkinformation.c, score/src/thread.c,
score/src/threadcreateidle.c, score/src/threadget.c,
score/src/threadidlebody.c, score/src/threadinitialize.c,
score/src/threadmp.c, score/src/threadq.c,
score/src/threadqdequeuepriority.c,
score/src/threadqenqueuepriority.c,
score/src/threadqfirstpriority.c, score/src/threadqflush.c,
score/src/threadreset.c, score/src/threadrestart.c,
score/src/threadsettransient.c, score/src/threadstackallocate.c,
score/src/threadstart.c, score/src/userext.c,
score/src/watchdoginsert.c, score/src/wkspace.c: Convert to using
c99 fixed size types.
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* include/rtems/debug.h, include/rtems/seterr.h,
include/rtems/system.h, include/rtems/score/address.h,
include/rtems/score/apiext.h, include/rtems/score/apimutex.h,
include/rtems/score/bitfield.h, include/rtems/score/chain.h,
include/rtems/score/context.h, include/rtems/score/copyrt.h,
include/rtems/score/coremsg.h, include/rtems/score/coremutex.h,
include/rtems/score/coresem.h, include/rtems/score/heap.h,
include/rtems/score/interr.h, include/rtems/score/isr.h,
include/rtems/score/mpci.h, include/rtems/score/mppkt.h,
include/rtems/score/object.h, include/rtems/score/objectmp.h,
include/rtems/score/priority.h, include/rtems/score/stack.h,
include/rtems/score/states.h, include/rtems/score/sysstate.h,
include/rtems/score/thread.h, include/rtems/score/threadmp.h,
include/rtems/score/threadq.h, include/rtems/score/tod.h,
include/rtems/score/tqdata.h, include/rtems/score/userext.h,
include/rtems/score/watchdog.h, include/rtems/score/wkspace.h,
inline/rtems/score/address.inl, inline/rtems/score/chain.inl,
inline/rtems/score/coremsg.inl, inline/rtems/score/coremutex.inl,
inline/rtems/score/coresem.inl, inline/rtems/score/heap.inl,
inline/rtems/score/isr.inl, inline/rtems/score/mppkt.inl,
inline/rtems/score/object.inl, inline/rtems/score/objectmp.inl,
inline/rtems/score/priority.inl, inline/rtems/score/stack.inl,
inline/rtems/score/states.inl, inline/rtems/score/sysstate.inl,
inline/rtems/score/thread.inl, inline/rtems/score/threadmp.inl,
inline/rtems/score/tod.inl, inline/rtems/score/tqdata.inl,
inline/rtems/score/userext.inl, inline/rtems/score/watchdog.inl,
inline/rtems/score/wkspace.inl, macros/rtems/score/address.inl,
macros/rtems/score/chain.inl, macros/rtems/score/coremsg.inl,
macros/rtems/score/coremutex.inl, macros/rtems/score/coresem.inl,
macros/rtems/score/heap.inl, macros/rtems/score/isr.inl,
macros/rtems/score/mppkt.inl, macros/rtems/score/object.inl,
macros/rtems/score/objectmp.inl, macros/rtems/score/priority.inl,
macros/rtems/score/stack.inl, macros/rtems/score/states.inl,
macros/rtems/score/sysstate.inl, macros/rtems/score/thread.inl,
macros/rtems/score/threadmp.inl, macros/rtems/score/tod.inl,
macros/rtems/score/tqdata.inl, macros/rtems/score/userext.inl,
macros/rtems/score/watchdog.inl, macros/rtems/score/wkspace.inl,
src/apiext.c, src/chain.c, src/coremsg.c, src/coremsgbroadcast.c,
src/coremsgclose.c, src/coremsgflush.c, src/coremsgflushsupp.c,
src/coremsgflushwait.c, src/coremsginsert.c, src/coremsgseize.c,
src/coremsgsubmit.c, src/coremutex.c, src/coremutexflush.c,
src/coremutexseize.c, src/coremutexsurrender.c, src/coresem.c,
src/coresemflush.c, src/coresemseize.c, src/coresemsurrender.c,
src/coretod.c, src/coretodset.c, src/coretodtickle.c,
src/coretodtoseconds.c, src/coretodvalidate.c, src/heap.c,
src/heapallocate.c, src/heapextend.c, src/heapfree.c,
src/heapgetinfo.c, src/heapsizeofuserarea.c, src/heapwalk.c,
src/interr.c, src/isr.c, src/iterateoverthreads.c, src/mpci.c,
src/object.c, src/objectallocate.c, src/objectallocatebyindex.c,
src/objectclearname.c, src/objectcomparenameraw.c,
src/objectcomparenamestring.c, src/objectcopynameraw.c,
src/objectcopynamestring.c, src/objectextendinformation.c,
src/objectfree.c, src/objectget.c, src/objectgetbyindex.c,
src/objectgetisr.c, src/objectgetnext.c, src/objectgetnoprotection.c,
src/objectidtoname.c, src/objectinitializeinformation.c,
src/objectmp.c, src/objectnametoid.c, src/objectshrinkinformation.c,
src/thread.c, src/threadchangepriority.c, src/threadclearstate.c,
src/threadclose.c, src/threadcreateidle.c, src/threaddelayended.c,
src/threaddispatch.c, src/threadevaluatemode.c, src/threadget.c,
src/threadhandler.c, src/threadidlebody.c, src/threadinitialize.c,
src/threadloadenv.c, src/threadmp.c, src/threadq.c,
src/threadqdequeue.c, src/threadqdequeuefifo.c,
src/threadqdequeuepriority.c, src/threadqenqueue.c,
src/threadqenqueuefifo.c, src/threadqenqueuepriority.c,
src/threadqextract.c, src/threadqextractfifo.c,
src/threadqextractpriority.c, src/threadqextractwithproxy.c,
src/threadqfirst.c, src/threadqfirstfifo.c,
src/threadqfirstpriority.c, src/threadqflush.c, src/threadqtimeout.c,
src/threadready.c, src/threadreset.c, src/threadresettimeslice.c,
src/threadrestart.c, src/threadresume.c, src/threadrotatequeue.c,
src/threadsetpriority.c, src/threadsetstate.c,
src/threadsettransient.c, src/threadstackallocate.c,
src/threadstackfree.c, src/threadstart.c,
src/threadstartmultitasking.c, src/threadsuspend.c,
src/threadtickletimeslice.c, src/threadyieldprocessor.c,
src/userext.c, src/watchdog.c, src/watchdogadjust.c,
src/watchdoginsert.c, src/watchdogremove.c, src/watchdogtickle.c,
src/wkspace.c: URL for license changed.
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Working Group. Included are tests.
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split into one function per file, this will decrease the size of executables.
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