changelog

eCos1.31版

	to returned value.

1999-06-21  Jesper Skov  <[e-mail]>
        PR 20209
	* tests/dhrystone.c: Don't run test on sims or synthetic target.
	Only run test when compiled with optimization.

1999-06-18  Jesper Skov  <[e-mail]>

	* tests/dhrystone.c: Added unsupported header.

1999-06-10  Hugo Tyson  <[e-mail]>

	* src/debug/dbg_gdb.cxx (dbg_threadinfo): Report counted sleep
	correctly; both COUNTSLEEP and SLEEPING are set.

1999-06-01  Hugo Tyson  <[e-mail]>

	* src/debug/dbg_gdb.cxx (dbg_threadinfo): Make the thread state
	string a little more sensible when read as plain english.

1999-05-31  Jesper Skov  <[e-mail]>

	* tests/dhrystone.c: 
	* tests/PKGconf.mak (TESTS): 
	Added dhrystone test.

	Updated to 2.1 from ftp.nosc.mil
	
1999-05-27  Nick Garnett  <[e-mail]>

	* src/intr/intr.cxx (Cyg_Interrupt::chain_isr): Calls
	HAL_DEFAULT_ISR if it is defined and no chained ISRs have
	reported that they have handled the interrupt.

	* src/debug/dbg_gdb.cxx (dbg_make_threadref): Fixed this routine
	so that it copes with a NULL thread object.

1999-05-27  Jesper Skov  <[e-mail]>

	* tests/stress_threads.c: Output stackmon status
	occasionally. Output (simple) run time.

1999-05-27  Jesper Skov  <[e-mail]>

	* tests/kcache1.c: Added handling of unified caches.

1999-05-26  Jesper Skov  <[e-mail]>

	* include/test/stackmon.h: Fixed some typos and thinkos.

	* tests/tm_basic.cxx: Include new stackmon header.

	* src/common/kapi.cxx: 
	* include/kapi.h: 
	Added kapi support for stackmon requirements.
	
	* include/stackmon.hxx:    [deleted]
	* include/test/stackmon.h: [added]
	Made stackmon safe to use from both C and C++.

1999-05-25  Jesper Skov  <[e-mail]>

	* tests/stress_threads.c (setup_death_alarm): Only compile when
	DEATH_TIME_LIMIT is defined.

1999-05-25  Jonathan Larmour  <[e-mail]>

	* tests/except1.cxx: 
	* tests/intr0.cxx (intr0_main): 
	* tests/kexcept1.c: 
	* tests/kintr0.c (kintr0_main): 
	Change all mentions of CYG_HAL_TX39[_JMR3904] to
	CYG_HAL_MIPS_TX39[_JMR3904]
	
	* tests/kcache1.c: Use HAL_DCACHE_SYNC if possible

1999-05-20  Hugo Tyson  <[e-mail]>

	* tests/tm_basic.cxx (run_all_tests): Added some more stack stats
	output using stackmon.hxx; also fixed a BUG associated with the
	definition of stacks in testaux.hxx (within tests dir) that was
	making the main stack usage bogus.

	* include/stackmon.hxx: new file, to ease printing stuff about
	stack usage, particularly of interrupt stacks and the idle
	thread.  It's not HAL specific, and it can apply to tests outside
	of the kernel, which is why it's in a public include-place.
	It just contains inline functions which define empty if there's no
	handle on the symbols available, so should be safe enough.

1999-05-18  Jesper Skov  <[e-mail]>

	* tests/stress_threads.c (main_program): Changed behavior of
	cyg_thread_delete caller.

1999-05-18  Hugo Tyson  <[e-mail]>

	* include/kapi.h (cyg_thread_delete): is now a boolean function to
	indicate success.  Failure is when the thread needs to run in
	order to become killed.

	* src/common/kapi.cxx (cyg_thread_delete): Try killing the thread
	if necessary before deleting; only run the destructor if it was
	killed, and tell the caller so.
	(cyg_thread_kill): Back to the simpler version with no priority
	diddling; it's up to the called to determine that it _has_ died.

	* src/common/thread.cxx (kill): Only perform the state-changes
	implied by kill if the thread has not already been killed;
	otherwise two kill()'s will remove a thread unconditionally,
	whether it's in the middle of a wait that needs tidying up or not.
	In other words, ensure idempotency.
	
1999-05-17  Hugo Tyson  <[e-mail]>

	* src/common/kapi.cxx (cyg_thread_kill): Up the priority of the
	killee to make it terminate *now* if we have priorities and they
	are not unique, otherwise asserts are likely with the bitmap
	scheduler.  Likewise in thread delete.  Condition out the bodies
	of the priority ops if the scheduler does not support priorities.

1999-05-16  Gary Thomas  <[e-mail]>

	* src/intr/intr.cxx (call_pending_DSRs): 
	* include/intr.hxx: Change mechanism for defining HAL function
	to run DSRs.  This was a "weak" symbol with override, but is now
	a macro in <cyg/hal/hal_intr.h>.

1999-05-13  Nick Garnett  <[e-mail]>

	The following changes were all made in a branch and are now being
	merged:
	
    1999-05-06  Nick Garnett  <[e-mail]>

	* src/debug/dbg-thread-demux.c:
	Use dbg-thread-syscall.h from HAL rather than local version.
	Made dbg_thread_syscall_rmt_1() generic to all MIPS targets.

	* src/debug/dbg-thread-syscall.h:
	Removed. Replaced by identical file in hal/common.
	
    1999-04-21  Nick Garnett  <[e-mail]>

	* include/pkgconf/kernel.h:
	Added CYGDBG_KERNEL_INSTRUMENT_BUFFER_WRAP option.
	Changed CYGNUM_KERNEL_COUNTERS_RTC_PERIOD to the correct value for
	VR4300.

	* include/instrmnt.h: Added CYG_INSTRUMENT_EVENT_THREAD_ENTER
	event.

	* src/instrmnt/meminst.cxx (cyg_instrument): Added implementation
	of CYGDBG_KERNEL_INSTRUMENT_BUFFER_WRAP option.

	* src/common/thread.cxx: Added extra instrumentation point on
	thread entry.

1999-05-10  Jesper Skov  <[e-mail]>

	* tests/stress_threads.c (main_program): Added workaround for a
	few PRs.

1999-05-07  Jesper Skov  <[e-mail]>

	* src/common/kapi.cxx (cyg_scheduler_unlock, cyg_scheduler_lock):
	Make these simple calls to the scheduler.

1999-05-07  Jesper Skov  <[e-mail]>

	* tests/stress_threads.c (setup_death_alarm): Reduce run time on
	synthetic target.

1999-05-06  Jesper Skov  <[e-mail]>
        
	* tests/stress_threads.c: Reversed priorities of agents.

1999-05-06  Jesper Skov  <[e-mail]>
        PRs 20040, (20027), 19991
	* tests/stress_threads.c: Added main_thread handling resource
	deallocation and printing.

1999-04-27  Jonathan Larmour  <[e-mail]>

	* tests/stress_threads.c: 
	If there aren't enough priorities, output an N/A, rather than
	stopping compilation with a #error

1999-04-28  Jesper Skov  <[e-mail]>
        PR 19850
	* tests/stress_threads.c: Don't print text from alarm handler.

1999-04-28  Jesper Skov  <[e-mail]>
        PR 19945 workaround
	* tests/kexcept1.c: 
	* tests/except1.cxx:
	Made NA to PowerPC SIM.

1999-04-27  Gary Thomas  <[e-mail]>

	* tests/tm_basic.cxx: 
	Use/test 'cyg_thread_delete()' function.
	Add ability to compute statistics with first datum removed which
	can show up cache effects.
	Show thread stack usage.

	Fix merge screwup :-(

1999-04-26  Hugo Tyson  <[e-mail]>

	* include/kapi.h: Add missing function cyg_thread_delete();
	otherwise there is no way in the C API to re-use thread memory
	safely.  It just calls the destructor of the Cyg_Thread class.

	* src/common/kapi.cxx (cyg_thread_delete): Implement it.

1999-04-26  Hugo Tyson  <[e-mail]>

	* tests/stress_threads.c: Commit a better version for Mark since I
	happen to have it here; having addressed the main concern of my
	approval process.  It runs better in sims so long as the
	constructor execution isn't messed with, nor timeslicing nor
	priority inheritance.

1999-04-23  Mark Galassi  <[e-mail]>

	* tests/stress_threads.c (setup_death_alarm): shortened the
	simulator time by another factor of 10, hoping that it will not
	slow down nightly testing for simulator platforms too much.
	(perform_stressful_tasks): added writing of a bit pattern to the
	malloc()-ed spaces.  Also reduced stack requirements for threads.

1999-04-23  Hugo Tyson  <[e-mail]>

	* src/common/timer.cxx (Cyg_Timer::activate): we must also disable
	the alarm when resetting it so as to remove it from its queue, so
	that the enable afterwards places it on the right queue instead of
	assuming that, being enabled, it's already there.  (if not
	enabling, the behaviour is unchanged and correct) This was
	detected by uITRON tests[cx]4, with some random perms including
	enable CYGIMP_KERNEL_COUNTERS_MULTI_LIST,
	value CYGNUM_KERNEL_COUNTERS_MULTI_LIST_SIZE {8}.
	The PR is 19475.
	
1999-04-21  Hugo Tyson  <[e-mail]>

	* tests/bin_sem1.cxx (bin_sem1_main): Doh!  Use priorities 4 and 5
	for the two threads so that they are unique (with a bitmap
	scheduler, the threads had prios 0 and 1 resp, which causes an
	assert in the attempt to set thread 0's prio to 1, "prios not
	unique").  PR 19904.

1999-04-20  Jonathan Larmour  <[e-mail]>

	* tests/kcache2.c: 
	Reduce iterations for time_ilock(), time_dlock(), and test_dzero()
	if a simulated environment is detected
	Fix for PR 19853

1999-04-19  Jonathan Larmour  <[e-mail]>

	* tests/kill.cxx: Make delay ticks greater than 1 to prevent
	scheduling problems if the clock rolls over immediately
	Fix for PR 19516

1999-04-20  Mark Galassi  <[e-mail]>

	* tests/stress_threads.c: applied Hugo's patch to fix stack sizes.
 
1999-04-19  Hugo Tyson  <[e-mail]>

	* tests/bin_sem1.cxx (bin_sem1_main): Add priorities to the
	threads so that they run sequentially like the tester expected.
	Otherwise simple timing, and shorter timeslicing, causes failure
	to be reported; likewise if the kernel happens not to run entry0
	first!
        (another checkin)
	(bin_sem1_main): Add conditional use of set_priority on
	CYGIMP_THREAD_PRIORITY as it should be.

1999-04-14  Jesper Skov  <[e-mail]>

	* src/debug/dbg_gdb.cxx: Fixed compiler warnings, cleaned up stub
	requirements (removed FIX ME).

1999-04-14  Gary Thomas  <[e-mail]>

	* include/intr.hxx: 
	* src/intr/intr.cxx (call_pending_DSRs_inner): Rework calling of
	DSRs to allow calls from HAL code.  This will allow for proper
	use of a separate interrupt stack.

1999-04-14  Mark Galassi  <[e-mail]>

	* tests/PKGconf.mak: added an ifndef for the AEB-1 board so that
	stress_threads is only built conditionally.

	* tests/stress_threads.c: added more config smarts suggested by
	Jesper for his configurations.

1999-04-13  Jesper Skov  <[e-mail]>
        PR 19822
	* src/debug/dbg_gdb.cxx: Current thread's registers live in
	registers, not _registers.

1999-04-13  Mark Galassi  <[e-mail]>

	* tests/stress_threads.c: simple stressing of thread
	creation/deletion with some memory-intensive and alarm-based
	tasks.  This version is set so that it dies after DEATH_TIME_LIMIT
	seconds, currently set to 120.  #undef-ing DEATH_TIME_LIMIT makes
	the test run forever.  This is currently not working with the
	bitmap scheduler, probably for some simple reason, but I have not
	yet broken it down to see why.

1999-04-12  Jonathan Larmour  <[e-mail]>

	* tests/except1.cxx: 
	* tests/kexcept1.cxx: 
	Remove now unnecessary tx39-specific setting of
	CYGNUM_HAL_EXCEPTION_DATA_UNALIGNED_ACCESS VSR
	Part of cleanup for PR 19731

1999-04-09  Hugo Tyson  <[e-mail]>

	Generally: thread->to_queue_head() moves a thread to the head of
	whatever queue it is on, if relevant.  This is so that a thread
	can change priority and then put itself at the front of its new
	run queue instead of the end; otherwise it yields too, which may
	be undesirable.  Particularly for internal use of priorities in
	the uITRON compatibility layer.

	* include/thread.hxx (class Cyg_Thread): to_queue_head(): new
	function. Define Cyg_Thread::rotate_queue() for all schedulers.
	Public inheritance of Cyg_ThreadQueue_Implementation.

	* include/thread.inl (class Cyg_Thread): to_queue_head(): new
	function. Define Cyg_Thread::rotate_queue() for all schedulers.

	* include/mlqueue.hxx (class Cyg_SchedThread_Implementation):
	to_queue_head(), ...ThreadQueue...::to_head(): new functions.

	* src/sched/mlqueue.cxx (class Cyg_SchedThread_Implementation):
	to_queue_head(), ...ThreadQueue...::to_head(): new functions.

	* include/bitmap.hxx (class Cyg_SchedThread_Implementation): 
	Add empty placeholders for rotate_queue() and to_queue_head() to
	maintain commonality of interface.

1999-04-08  Jesper Skov  <[e-mail]>
        PR 19667
	* kernel/current/src/common/thread.cxx:
	Removed obsolete Cyg_Thread constructor.

	* kernel/current/tests/testaux.hxx:
	* kernel/current/tests/thread0.cxx:
	* kernel/current/tests/thread1.cxx:
	Changed to use the new Cyg_Thread constructor.

1999-04-08  Jesper Skov  <[e-mail]>

	* src/common/kapi.cxx: Minor indentation fixes.

1999-04-07  Jesper Skov  <[e-mail]>
        PR 19743
	* include/mfiximpl.inl (Cyg_Mempool_Fixed_Implementation): Moved
	argument assertions before the first use of the arguments.

1999-04-07  Hugo Tyson  <[e-mail]>

	* tests/kexcept1.c (except0_main): 
	* tests/except1.cxx (except0_main): 
	Use macro HAL_VSR_SET_TO_ECOS_HANDLER() if defined, to reset
	likely exception handler VSRs to eCos' default handlers - the
	target side equivalent to CYG_TEST_GDBCMD("handle SIGBUS nostop");
	The VSR may not be the eCos standard one in some implementations
	of cooperation with CygMon.

1999-03-31  Nick Garnett  <[e-mail]>

	* include/pkgconf/kernel.h (CYGNUM_KERNEL_COUNTERS_RTC_PERIOD):
	Fixed value of this option for TX39 66MHz to correct number.

1999-03-25  Gary Thomas  <[e-mail]>

	* tests/tm_basic.cxx: More adjustments to get clock latency correct.
	Some fine tuning of messages and layout to fit well within 80 columns.

1999-03-24  Nick Garnett  <[e-mail]>

	* include/pkgconf/kernel.h: Fixed an ifdef error.

1999-03-24  Gary Thomas  <[e-mail]>

	* tests/tm_basic.cxx (NTEST_THREADS): Reduce # threads so test can
	build on smaller machines.  Also, only adjust timings by single
	"overhead" value instead of the more generous 2*overhead.

	* src/common/clock.cxx: Clock latency measurement defaults to 'off'.

1999-03-23  Nick Garnett  <[e-mail]>

	* tests/kcache2.c: Reduced number of loops in time_ilock(). On the
	MN10300 and TX39 this caused the test to timeout in the testing
	farm.

1999-03-23  Gary Thomas  <[e-mail]>

	* tests/tm_basic.cxx: 
	* src/common/clock.cxx: Add 'measure_clock_latency' boolean which
	is used to turn clock latency measurements on/off.

1999-03-23  Nick Garnett  <[e-mail]>