changelog

eCos操作系统源码

	* src/common/clock.cxx (dsr): Fix latency ifdef guards.
	* tests/tm_basic.cxx: Same.

2002-05-20  Jonathan Larmour  <[e-mail]>

	* src/sched/mlqueue.cxx: Don't force timeslice tracing on by default
	against	the user's wishes.
	* cdl/scheduler.cdl: Instead provide an option controlling it.

2002-05-09  Jonathan Larmour  <[e-mail]>

	* include/kapidata.h (CYG_HARDWARETHREAD_MEMBERS): entry_point
	should be a pointer to function not an addrword (which may be
	different).
	(cyg_reason_t): Define cyg_reason_t as an enum not an int.
	(struct cyg_mutex_t): Define mutex protocol as an enum not a cyg_uint32.
	Define locked member as a cyg_atomic, not a cyg_bool.

2002-05-09  Nick Garnett  <[e-mail]>

	* tests/timeslice.c: Modified test thread to accumulate run time
	by reading HAL clock, and to detect and record changes of CPU. The
	previous version of this code reported varying results - probably
	as a consequence of cache effects.

	* include/instrmnt.h: Fixed left-over debug edit to MLQ
	instrumentation enable code.

2002-04-29  Jesper Skov  <[e-mail]>

	* include/kapi.h: Added cyg_alarm_get_times and
	cyg_counter_multi_tick.
	* src/common/kapi.cxx: Same. Er, fix oversight.
	* doc/kernel.sgml: Doc update.

2002-04-24  Yoshinori Sato  <[e-mail]>

	* src/sync/flag.cxx: Don't set default args in func definitions.

2002-04-24  Jesper Skov  <[e-mail]>

	* tests/dhrystone.c: Moved platform max number of passes to CDL in
	HALs.

2002-04-23  Jesper Skov  <[e-mail]>

	* tests/dhrystone.c: Allow platform to define max number of passes
	via CYGPRI_KERNEL_TESTS_DHRYSTONE_PASSES.

2002-04-09  Jonathan Larmour  <[e-mail]>

	* include/kapi.h: Use NORET attributes from cyg_type.h.
	* include/sched.hxx (class Cyg_Scheduler): Ditto.

2002-04-08  Nick Garnett  <[e-mail]>

	* src/sync/mutex.cxx: Added IF_PROTOCOL_ACTIVE macro to condition
	use of the mutex counter. This means that a mutex that is not
	configured to participate in a priority inversion protocol does not
	count for operation of that protocol. 

2002-03-04  Lars Viklund <[e-mail]>

	* include/kapidata.h (CYG_SCHEDTHREAD_ASR_MEMBER): 
	asr_inhibit is cyg_ucount32 - must match

2002-02-13  Hugo Tyson  <[e-mail]>

	* doc/kernel.sgml: NEW FILE: Correct reference to uITRON doc.

2002-01-28  Jesper Skov  <[e-mail]>

	* tests/kexcept1.c: Fix warning.

2002-01-24  Jesper Skov  <[e-mail]>

	* tests/kcache1.c (time0DI): Disable interrupts around the
	sync+invalidate process.
	* tests/kcache2.c: Same.

2002-01-23  Jonathan Larmour  <[e-mail]>

	* src/intr/intr.cxx (mask_interrupt): Disable interrupts.
	(unmask_interrupt): Ditto.
	(mask_interrupt_intunsafe): New function to avoid disabled interrupts.
	(unmask_interrupt_intunsafe): Ditto.
	* include/intr.hxx (class Cyg_Interrupt): Declare above new funcs.
	* src/common/kapi.cxx (cyg_interrupt_unmask_intunsafe): Above
	replicated to KAPI.
	(cyg_interrupt_mask_intunsafe): Ditto.
	* include/kapi.h: Ditto.

2002-01-07  Nick Garnett  <[e-mail]>

	* tests/except1.cxx: 
	* tests/kexcept1.cxx:
	Added ifdef to disable these tests in ARM PID platform. This
	platform cannot generate any of the exceptions that this test
	needs to work.

2001-12-12  Jesper Skov  <[e-mail]>

	* tests/kcache2.c (time_ilock): Put some dummy goto statements in
	to prevent compiler from moving labels around.

2001-11-29  Jonathan Larmour  <[e-mail]>

	* src/sched/mlqueue.cxx (timeslice_cpu): Reset timeslice_count on
	a timeslice.
	Noticed by Tony Kho.

2001-11-23  Jonathan Larmour  <[e-mail]>

	* tests/klock.c (entry1): Support running with
	CYGFUN_KERNEL_THREADS_TIMER disabled.

2001-10-30  Nick Garnett  <[e-mail]>

	* tests/kcache2.c (test_dsync):
	Added call to HAL_ICACHE_INVALIDATE_ALL() just before DCACHE
	disable. In platforms where both caches are controlled together,
	such as the VR4300, not doing this can result in strange behaviour
	as the ICACHE gets turned off under the program's feet, when it is
	not ready for it.

2001-10-17  Jesper Skov  <[e-mail]>

	* tests/dhrystone.c: CYGINT_ISO_STRING_STRFUNCS check changed to
	ifdef.

2001-10-12  Jonathan Larmour  <[e-mail]>

	* cdl/synch.cdl (CYGIMP_KERNEL_SYNCH_MQUEUE_NOT_INLINE): New option
	to avoid inlining mqueue implementation.

	* src/sync/mqueue.cxx: New file to provide non-inline version of
	mqueue functions.

	* include/mqueue.hxx: Don't include .inl if user doesn't want inlining.

	* include/mqueue.inl: Allow choice of inlining or not to be
	overridden by macro.

	* tests/mqueue1.cxx: Never use inline version.

2001-10-11  Jesper Skov  <[e-mail]>

	* tests/kmutex3.c (new_thread): Fixed allocation: increase counter
	before starting threads which have been allocated resources.
	* tests/kmutex4.c (new_thread): Same.
	* tests/mutex3.cxx (new_thread): Same.
	* tests/testaux.hxx (new_thread): Same.

	* tests/kcache2.c: Fixed warning.
	* tests/stress_threads.c: Same.

2001-09-20  Jonathan Larmour  <[e-mail]>

	* host/instr/dump_instr.c (main): Fix argc check.

2001-09-07  Jonathan Larmour  <[e-mail]>

	* include/thread.inl (measure_stack_usage): Deal with stack limits.

2001-09-07  Nick Garnett  <[e-mail]>

	* src/common/thread.cxx (set_priority): Change argument to
	instrumentation call to new_priority rather than current
	priority. (Suggested by Andrew Lunn).

2001-09-05  Jesper Skov  <[e-mail]>

	* include/mqueue.inl (Cyg_Mqueue): Initialize busy flag of last
	entry in the list.

2001-09-04  Jonathan Larmour  <[e-mail]>

	* cdl/instrument.cdl (CYGDBG_KERNEL_INSTRUMENT_BUILD_HOST_DUMP): 
	Remove redundant requires, and adjust make rule to be more portable
	across hosts.
	(CYGDBG_KERNEL_INSTRUMENT_MSGS_BUILD_HEADERFILE):
	Invoke script with sh directly rather than rely on executable attribute.

	* host/instr/readme.txt: Update build of host dump as per the changed
	CDL.

	* cdl/kernel.cdl: Don't build nullinst.cxx any more.
	Build meminst.cxx only in CYGPKG_KERNEL_INSTRUMENT.
	* src/instrmnt/nullinst.cxx: Delete. It causes confusion in the
	library as it declares cyg_instrument like meminst.cxx does.

2001-08-31  Nick Garnett  <[e-mail]>

	* src/intr/intr.cxx: Clean up typo in DSR table
	case. dsr_table_tail and dsr_table_head were not being subscripted
	in a couple of places.

2001-08-23  Hugo Tyson  <[e-mail]>
2001-08-20  Andrew Lunn <[e-mail]>

	* include/instrument_desc.h: New file.  This contains the table of
	events used to print the nice information.  It should be
	regenerated when the instrumentation numbers change.

	* src/instrmnt/meminst.cxx (cyg_instrument_msg):
	returns an ASCII string describing the type of event the
	instrumentation code logged.

	* include/instrmnt.h: Added function prototype.

	* cdl/instrument.cdl: Configury for enabling the new function, and
	optionally rebuilding its header file and building a host tool.

	* host/instr/dump_instr.c: New file.  A host program to print the
	instrumentation information in a human readable form.

	* host/instr/instrument.sh: New file.  Script to generate table of
	events with textual representation.

	* host/instr/readme.txt: New file.  Helpful information.

2001-08-23  Nick Garnett  <[e-mail]>

	* include/kapidata.h (CYG_THREADTIMER_MEMBERS):
	Substituted an expicit cyg_alarm object for CYG_ALARM_MEMBERS in
	this definition. In some architectures (MIPS in particular) the
	structures need to be padded to a multiple of 64 bits. This was
	not happening with the macro substituted versions.
	This is just a temporary fix, I'll leave it to Jifl to sort out a
	real patch when he returns.

2001-08-23  Hugo Tyson  <[e-mail]>

	* src/common/thread.cxx: Properly qualify Cyg_Thread::destructors
	array so that it builds when destructors are not used.

2001-08-23  Nick Garnett  <[e-mail]>

	* src/sched/mlqueue.cxx: Added code to
	Cyg_SchedThread_Implementation::to_queue_head() to handle a NULL
	thread queue pointer. This compensates for a minor change in
	behaviour of the scheduler.

2001-08-22  Jonathan Larmour  <[e-mail]>

	* cdl/thread.cdl: Add kernel thread destructor options.
	* include/kapidata.h: Add thread destructor entries to cyg_thread
	* include/thread.hxx (Cyg_Thread): Give per-thread data indexes
	their own type, cyg_data_index.
	Include new thread destructor data members, and new add_destructor
	and rem_destructor member functions.
	* include/thread.inl: Use a cyg_data_index for per-thread data handle.
	(add_destructor): New Cyg_Thread member function.
	(rem_destructor): Ditto.
	* src/common/kapi.cxx: Use cyg_data_index type for per-thread data
	functions.
	* src/common/thread.cxx (Cyg_Thread): initialise per-thread
	destructors if needed.
	Define static destructors if needed.
	(exit): Call destructors.
	(new_data_index): Use cyg_data_index type.
	(free_data_index): Ditto.

2001-08-22  Hugo Tyson  <[e-mail]>
  
	* src/sync/mutex.cxx (Cyg_Mutex): Add initialization of the
	priority ceiling value in the non-dynamic protocol case.

2001-08-22  Nick Garnett  <[e-mail]>

	* tests/intr0.c: 
	* tests/kintr0.c:
	Swapped order of interrupt enable/disable calls to keep kernel
	happy when assertions are enabled. Otherwise the enable call
	complains that interrupts have not been disabled.

	* src/sched/mlqueue.cxx:
	Simplified algorithm in set_need_reschedule().

	* include/smp.hxx: 
	* include/kapidata.h: Change spinlock to be a cyg_uint32, rather
	than a cyg_atomic.

	* src/intr/intr.cxx: 
	* include/intr.hxx:
	Now arrange for DSRs to be called on the same CPU as the ISR. This
	is necessary if the DSR needs to access per-CPU hardware (such as
	interrupt controllers). This is achieved by keeping a separate DSR
	list/table for each CPU.

	* tests/smp.cxx: Some modifications to make this test work in a
	real SMP environment.

	* tests/timeslice.c: 
	* cdl/kernel.cdl: Added timeslice test.

2001-08-21  Hugo Tyson  <[e-mail]>

	* src/sync/mutex.cxx (lock): Bugfix: a ceiling priority mutex
	wasn't elevated until after it had acquired the mutex.  This meant
	it slept with a low priority, and so did not run when awakened by
	the release of the mutex.  The fix is to elevate the potential
	claimant before it sleeps in contention. 

	* tests/kmutex4.c: New testcase - very similar to kmutex3 but it
	loops a load more times using different mutex priority protocols.
	This checks that dynamically set protos do in fact behave
	differently from one another and as they are each intended to.

	* tests/kmutex3.c: Remove FIXME comments - we now test dynamic
	protocol.

	* cdl/kernel.cdl: Build the new test.

2001-08-20  Jonathan Larmour  <[e-mail]>

	* include/kapidata.h: Reorganize most struct type definitions into
	macros to allow compatible layout with all G++ implementations that
	align non-POD types differently from included C structures.
	* include/kapi.h: Similarly for cyg_resolution_t.

2001-08-17  Nick Garnett  <[e-mail]>

	* src/sched/mlqueue.cxx (timeslice): Fix timeslice_count comparison.

2001-08-16  Hugo Tyson  <[e-mail]>

	* include/kapi.h (cyg_mutex_protocol): Tidy up names of mutex
	protocol type and values.  These polluted rather in 'C'.

	* src/common/kapi.cxx (cyg_mutex_set_protocol): ditto.

2001-08-15  Hugo Tyson  <[e-mail]>
2001-08-15  Andrew Lunn <[e-mail]>

	* src/common/kapi.c (cyg_thread_get_current_priority): Export
	this function into the C api.
	* include/kapi.h: Declaration of new function.

2001-08-14  Jonathan Larmour  <[e-mail]>

	* src/common/kapi.cxx (cyg_spinlock_spin_intsave): Cast to istate
	to CYG_INTERRUPT_STATE * since that's what is needed.
	(cyg_spinlock_clear_intsave): Similarly.

2001-08-10  Hugo Tyson  <[e-mail]>

	* cdl/synch.cdl: Re-organize the options for mutexes so they are
	active a bit more sensibly; place the default ceiling within
	selection of ceiling protocol, and only have a default protocol if
	there is more than one protocol active.

	* tests/mutex3.cxx: More detailed handling of the possibility of
	ceiling protocol instead of the inherit or none cases; we can run
	the test ok and treat as inherit if the ceiling prio is higher
	than 5, treat as none if lower than 15, and don't check anything
	if in between - the test runs happily.

	* tests/kmutex3.c (cyg_start): New test, a KAPI translation of the
	now-classic mutex3.cxx.

	* cdl/kernel.cdl: Build tests/kmutex3.c

2001-08-06  Hugo Tyson  <[e-mail]>

	* src/sched/sched.cxx (unlock_inner): Fix assignment to current,
	wouldn't build if stack checking after merger from SMP branch.

2001-08-06  Andrew Lunn   <[e-mail]>
2001-08-06  Hugo Tyson  <[e-mail]>

	* src/sync/mutex.cxx: (set_protocol) Added a function to set the
	priority inversion protocol for a mutex.

	* src/common/kapi.cxx: Export the new function above and
	set_ceiling into the C API.
	
	* include/mutex.hxx (class Cyg_Mutex): New member function
	set_protocol().