Subversion Repositories or1k

2003-03-03  Jonathan Larmour  <jifl@eCosCentric.com>

        * tests/fptest.c: Make all variables static to avoid any risk
        of collisions with symbols defined elsewhere in eCos.

2003-02-27  Jonathan Larmour  <jifl@eCosCentric.com>

        * include/kapidata.h: Revert change of 2001-08-23 and instead make
        it conditional on the GCC version. Also add comments explaining why
        this file has been apparently obfuscated.

2003-02-25  Nick Garnett  <nickg@calivar.com>

        * tests/fptest.c (alarm_fn): Added CYG_TEST_PASS() call to keep
        configtool happy.

2003-02-24  Jonathan Larmour  <jifl@eCosCentric.com>

        * cdl/kernel.cdl: Update doc links.
        * cdl/synch.cdl: Ditto.
        * cdl/thread.cdl: Ditto.

2003-02-19  Nick Garnett  <nickg@calivar.com>

        * tests/fptest.c: Changed to run for a constant time rather than a
        constant number of iterations, with a shorter run time for
        simulated targets.

2003-02-10  Gary Thomas  <gary@mlbassoc.com>

        * include/thread.inl: Add more debug info to thread stack checking.

        * tests/clocktruth.cxx: 
        * tests/clockcnv.cxx: Use <cyg/infra/diag.h> for diag_printf()
        prototype, rather than hard coding (because it was inconsistent).

2003-02-05  Gary Thomas  <gary@mlbassoc.com>

        * tests/kcache2.c (test_dcache_operation): New test to verify
        that the DATA cache syncs properly.

2003-01-31  Nick Garnett  <nickg@calivar.com>

        * cdl/kernel.cdl: 
        * tests/fptest.c: Added this program to test interaction of FPU
        with multiple threads.

2003-01-30  Jonathan Larmour  <jifl@eCosCentric.com>

        * src/common/thread.cxx: Fix potential warning and overflow with
        CYGNUM_KERNEL_THREADS_DATA_MAX == 32.

2003-01-28  Jonathan Larmour  <jifl@eCosCentric.com>

        * src/common/kapi.cxx (cyg_thread_get_next): Be quite zealous about
        checking the validity of passed in threads in debug mode.
        (cyg_thread_get_info): Ditto.

        * cdl/thread.cdl: Correct max legal value for
        CYGNUM_KERNEL_THREADS_DATA_MAX.

2003-01-22  Jonathan Larmour  <jifl@eCosCentric.com>

        * doc/kernel.sgml: Document cyg_thread_info type.

2003-01-13  Dmitriy Korovkin  <dkorovkin@rambler.ru>
2003-01-13  Jonathan Larmour  <jifl@eCosCentric.com>

        * include/mqueue.hxx: Allow get/put to return time out.
        * include mqueue.inl: Ditto.

2003-01-02  Gary Thomas  <gary@mlbassoc.com>

        * tests/kcache2.c: New subtest for raw data cache operations.

2002-12-12  Nick Garnett  <nickg@ecoscentric.com>

        * src/common/kapi.cxx: 
        * include/kapi.h:
        Added function cyg_thread_get_next(), cyg_thread_find() and
        cyg_thread_get_info() to allow the current set of threads to be
        enumerated, and per-thread information to be retrieved safely.

        * doc/kernel.sgml: Documented new KAPI calls.

        * src/common/thread.cxx: Zero unique_id in thread destructor so
        that a stale thread pointer can be checked for validity.

        * include/instrmnt.h:
        Added cyg_instrument_state() to report the current state of an
        instrumentation flag.
        Moved ifdef for CYGDBG_KERNEL_INSTRUMENT_MSGS out of within FLAGS
        ifdef. We can have messages without flags.

        * src/instrmnt/meminst.cxx: 
        Added cyg_instrument_state() to report the current state of an
        instrumentation flag.
        Modified cyg_instrument_msg() in line with header and table
        changes.

        * host/instr/dump_instr.c:
        * host/instr/instrument.sh:
        * include/instrument_desc.h: 
        Added a final NULL element to the generated table in
        instrument_desc.h to mark its end. Otherwise code that does not
        have access to the table definition cannot find its end. Also
        added ifdefs to allow instrument_desc.h to be used to acquire the
        structure definition and table pointer.

2002-12-03  Gary Thomas  <gthomas@ecoscentric.com>

        * tests/tm_basic.cxx: Add tests of 'flag' synchronizers.

2002-10-28  Andrew Lunn  <andrew.lunn@ascom.ch>

        * tests/tm_basic.cxx: Include infra/diag.h and removed the 
        incorrect prototype for diag_printf

2002-10-16  Gary Thomas  <gthomas@ecoscentric.com>

        * include/test/stackmon.h (STACKMON_PRINTF): Use #include to get
        prototype for 'diag_printf()'.

2002-10-01  Jonathan Larmour  <jifl@eCosCentric.com>

        * src/common/clock.cxx (add_alarm): Tweak last change to allow
        alarm order for identical alarms to be the same as it used to be.

2002-09-30  Jonathan Larmour  <jifl@eCosCentric.com>

        * src/common/clock.cxx (add_alarm): Fix bug resulting in alarms
        not being added at all if a lower triggered alarm already exists.
        Reported by Christoph Csebits.
        Also fix bug when alarm is entered for the same time as tail.
        These bugs only apply for CYGIMP_KERNEL_COUNTERS_SORT_LIST enabled.

        * doc/kernel.sgml: document that order of callback for alarms at
        identical times is unspecified.

2002-08-08  Nick Garnett  <nickg@calivar.demon.co.uk>

        * src/sched/sched.cxx (unlock_inner): Removed initial
        assertion. This has served its purpose and with the introduction
        of routines such as unlock_reschedule() is prone to firing in
        otherwise benign circumstances.

2002-08-05  Bart Veer  <bartv@tymora.demon.co.uk>

        * cdl/kernel.cdl, include/kapidata.h, include/kapi.h:
        Allow configurations with the kernel but no malloc

2002-06-05  Gary Thomas  <gary@chez-thomas.org>

        * include/kapi.h: Fix prototype (to allow builds with net stack).

2002-05-24  Jesper Skov  <jskov@redhat.com>

        * cdl/kernel.cdl: Fix typo.

2002-05-23  Jonathan Larmour  <jlarmour@redhat.com>

        * include/kapi.h: Expose new cyg_thread_add_destructor and
        cyg_thread_rem_destructor APIs.

        * include/kapidata.h (struct Cyg_Destructor_Entry):
        Change CYG_ADDRWORD to more correct cyg_addrword_t.

        * include/thread.hxx (class Cyg_Thread): add_destructor and
        rem_destructor are onyl static when not per-thread.

        * include/thread.inl (add_destructor): Don't need to lock and unlock
        scheduler when destructors are per-thread.
        (rem_destructor): Ditto.

        * src/common/thread.cxx (exit): No need to lock scheduler when
        calling destructors.

        * doc/kernel.sgml: Document thread destructor API.

2002-05-23  Nick Garnett  <nickg@redhat.com>

        * doc/kernel.sgml: Some more edits to the kernel documentation:
        changed all references to message boxes to mail boxes, clarified
        some thing in various places, fixed a few typos.

2002-05-23  Jesper Skov  <jskov@redhat.com>

        * cdl/kernel.cdl: Cleaned up kernel tests rule. Also remove tests
        depending on the C API when its not present. And skip dhrystone
        test when debug or instrumentation is enabled.

        * tests/tm_basic.cxx: Fixed warning.

2002-05-22  Nick Garnett  <nickg@redhat.com>

        * doc/kernel.sgml:
        Fixed up SMP documentation.
        Rewrote condtion variable documentation to make its relationship
        to mutexes more apparent.

2002-05-22  Jesper Skov  <jskov@redhat.com>

        * tests/smp.cxx: Move inclusion of testaux.hxx to below NA
        checks.

2002-05-21  Bart Veer  <bartv@redhat.com>

        * doc/kernel.sgml:
        Major update to the kernel documentation.

2002-05-21  Jesper Skov  <jskov@redhat.com>

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

2002-05-20  Jonathan Larmour  <jlarmour@redhat.com>

        * 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  <jlarmour@redhat.com>

        * 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  <nickg@redhat.com>

        * 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  <jskov@redhat.com>

        * 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  <qzb04471@nifty.ne.jp>

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

2002-04-24  Jesper Skov  <jskov@redhat.com>

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

2002-04-23  Jesper Skov  <jskov@redhat.com>

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

2002-04-09  Jonathan Larmour  <jlarmour@redhat.com>

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

2002-04-08  Nick Garnett  <nickg@redhat.com>

        * 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 <lars.viklund@axis.com>

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

2002-02-13  Hugo Tyson  <hmt@redhat.com>

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

2002-01-28  Jesper Skov  <jskov@redhat.com>

        * tests/kexcept1.c: Fix warning.

2002-01-24  Jesper Skov  <jskov@redhat.com>

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

2002-01-23  Jonathan Larmour  <jlarmour@redhat.com>

        * 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  <nickg@redhat.com>

        * 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  <jskov@redhat.com>

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

2001-11-29  Jonathan Larmour  <jlarmour@redhat.com>

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

2001-11-23  Jonathan Larmour  <jlarmour@redhat.com>

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

2001-10-30  Nick Garnett  <nickg@redhat.com>

        * 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  <jskov@redhat.com>

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

2001-10-12  Jonathan Larmour  <jlarmour@redhat.com>

        * 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  <jskov@redhat.com>

        * 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  <jlarmour@redhat.com>

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

2001-09-07  Jonathan Larmour  <jlarmour@redhat.com>

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

2001-09-07  Nick Garnett  <nickg@redhat.com>

        * 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  <jskov@redhat.com>

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

2001-09-04  Jonathan Larmour  <jlarmour@redhat.com>

        * 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  <nickg@redhat.com>

        * 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  <hmt@redhat.com>
2001-08-20  Andrew Lunn <andrew.lunn@ascom.ch>

        * 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  <nickg@redhat.com>

        * 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  <hmt@redhat.com>

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

2001-08-23  Nick Garnett  <nickg@redhat.com>

        * 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  <jlarmour@redhat.com>

        * 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  <hmt@redhat.com>
  
        * src/sync/mutex.cxx (Cyg_Mutex): Add initialization of the
        priority ceiling value in the non-dynamic protocol case.

2001-08-22  Nick Garnett  <nickg@redhat.com>

        * 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  <hmt@redhat.com>

        * 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  <jlarmour@redhat.com>

        * 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  <nickg@redhat.com>

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

2001-08-16  Hugo Tyson  <hmt@redhat.com>

        * 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  <hmt@redhat.com>
2001-08-15  Andrew Lunn <andrew.lunn@ascom.ch>

        * 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  <jlarmour@redhat.com>

        * 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  <hmt@redhat.com>

        * 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  <hmt@redhat.com>

        * 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   <andrew.lunn@ascom.ch>
2001-08-06  Hugo Tyson  <hmt@redhat.com>

        * 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().

        * include/kapi.h (cyg_protcol): Define new emumeration for mutex
        priority protocol setting, and headers for the new function to set
        it.

2001-08-03  Nick Garnett  <nickg@redhat.com>

        Imported from a development branch:
        
        2001-07-11  Nick Garnett  <nickg@redhat.com>

                * src/sched/mlqueue.cxx: Changed behaviour of
                set_need_reschedule() to a better implementation of the intended
                algorithm.

                * include/kapi.h: 
                * src/common/kapi.cxx:
                Added API for controlling routing of interrupts to CPUs in SMP
                configurations.

        2001-07-03  Nick Garnett  <nickg@cygnus.co.uk>

                * cdl/scheduler.cdl:
                * include/bitmap.hxx:
                * src/sched/bitmap.cxx:
                Fixed up bitmap scheduler so it still works within the
                SMP-modified scheduling infrastructure. The bitmap scheduler
                is not currently SMP-enabled, only single CPU configurations are
                supported - hence the CDL change to require this.

        2001-06-29  Nick Garnett  <nickg@cygnus.co.uk>

                * src/sched/sched.cxx:
                Removed the call to Cyg_Interrupt::enable_interrupts() in
                Cyg_Scheduler::start_cpu(). This was a relic from the days when
                the interrupt enable state was not part of the thread state. Now
                it is, and loading the first thread will cause interrupts to be
                enabled.

                * src/intr/intr.cxx:
                Changed initial values of Cyg_Interrupt::disable_counter[]s to
                zero as a result of the change in Cyg_Scheduler::start_cpu().

                * include/kapi.h:
                * include/kapidata.h:
                * src/common/kapi.cxx: 
                Added API for using spinlocks. Largely so that it may be extended
                to the driver API.

                * include/mlqueue.hxx:
                * include/intr.hxx:
                * include/sched.hxx:
                Added annotations to various static variables.

        2001-06-28  Nick Garnett  <nickg@cygnus.co.uk>

                * include/intr.hxx:
                * src/intr/intr.cxx:
                Changed behaviour of Cyg_Interrupt::disable_interrupts() and
                Cyg_Interrupt::enable_interrupts(). These now claim and release a
                spinlock in addition to disabling and enabling interrupts. The
                original interrupt state is also preserved and restored. This is
                necessary in SMP systems to allow drivers etc. to correctly
                synchronize with threads and DSRs that may be running on different
                CPUs. In the single CPU case this mechanism reduces to the
                original simple interrupt disable code.
                [Later change] Backed off addition of volatile modifier to
                interrupt_disable_state.

                * include/smp.hxx: Some minor tidies.

        2001-06-27  Nick Garnett  <nickg@cygnus.co.uk>

                * tests/release.cxx: Added spin loop in thread1 to allow thread0
                to execute its wait. This is necessary in SMP systems where the
                threads will execute in parallel, but is also benign in single CPU
                systems.

                * tests/mutex2.cxx:
                * tests/mutex3.cxx:
                * tests/sync3.cxx: 
                * tests/thread2.cxx: 
                These tests depend on predicting the behaviour of threads at
                different priorities to pass. In an SMP system, several threads
                will run in parallel, and the execution order will not be as
                expected. These tests are therefore disabled in SMP
                configurations.

                * src/sched/mlqueue.cxx (add_thread): Moved call to
                set_need_reschedule() out of test for empty queue. In SMP systems,
                any addition to a queue may require a reschedule on another CPU.

        2001-06-22  Nick Garnett  <nickg@cygnus.co.uk>

                * include/mlqueue.hxx:
                * src/sched/mlqueue.cxx:
                A major change to the way in which this scheduler works in SMP
                systems. The previous version removed all runnable threads from
                the run queues when they were executing. This resulted in serious
                complications and messy code, particularly when dealing with
                priority changes and timeslicing. The new version keeps running
                threads in the run queues, just like the single-CPU version. The
                main disadvantage of this is that we may have to search past
                threads running on other CPUs before we find one available to run
                on this CPU. However, the pending count array and map mean that we
                only need search one run queue, and in any case the search remains
                bounded by the number of CPUs available.
                Another change is in the way that timeslicing is handled. Now, the
                CPU that takes the clock interrupt decrements the timeslice counts
                for all CPUs and if any go zero, sends a TIMESLICE message to
                that CPU.

                * src/sched/sched.cxx (unlock_inner):
                Removed call to requeue(), no longer needed as a result of
                scheduler reorganization.

                * src/common/thread.cxx:
                Added test in Cyg_Thread::exit() to check that the thread has not
                already been killed. This is only an issue if the thread is
                calling exit() when it is kill()ed from another CPU. The test is
                redundant in single-CPU systems, but it does no harm having it.
                Added code to Cyg_Thread::set_priority() to check for reschedule
                when another thread is being changed in priority.
                Added call in idle thread constructor to scheduler to install the
                idle thread as the default current thread for a CPU.

                * include/smp.hxx:
                Added CYG_KERNEL_CPU_TIMESLICE_INTERRUPT(), did some miscellaneous
                tidying.

                * include/instrmnt.h: Added SMP_RESCHED_SEND and SMP_RESCHED_RECV
                events.

                * cdl/kernel.cdl: Added smp test program.

                * tests/smp.cxx: Added this program to test SMP functionality.

        2001-06-13  Nick Garnett  <nickg@cygnus.co.uk>

                * src/sched/sched.cxx:
                Removed code to set up initial current thread, this is now done
                in the idle thread constructor.
                Added code here to set up interrupts for SMP inter-processor
                interrupts. This is not very tidy and may need to be
                changed in the future.

                * src/sched/mlqueue.cxx:
                Added local set_need_reschedule() function to set the
                need_reschedule flag on a suitable CPU.
                Many more changes to cope with SMP systems.
                NOTE: This code has all become somthing of a mess, it need to be
                tidied up and the SMP-specific changes integrated better into the
                code. Also, timesliceing currently only works on the CPU that
                takes clock interrupts - this needs fixing.

                * src/common/thread.cxx:
                Moved assignment of initial current thread to here from sched.cxx.

                * include/smp.hxx:
                Changed CYG_KERNEL_CPU_INTERRUPT()
                CYG_KERNEL_CPU_RESCHEDULE_INTERRUPT() since there may be other
                interrupt types to worry about.
                Added annotations to scheduler data items.

                * include/sched.hxx:
                Split set_current_thread() into two functions, the original works
                only on the current CPU, the new one sets another CPU's current
                thread. This latter function is only used to prime the current
                threads during initialization.
                Added second need_reschedule() function that takes a thread
                argument. This is intended to be overridden by a scheduler
                specific function that sets the need_reschedule flag if the
                supplied thread is more deserving of CPU time that any current
                thread.

                * include/mlqueue.hxx:
                Made cyg_scheduler_set_need_reschedule() a friend of
                Cyg_Scheduler_Implementation class.
                Added override set_need_reschedule() functions.

                * include/kapidata.h: Added cpu field to cyg_thread structure when
                in SMP systems.

                * include/intr.hxx:
                * src/intr/intr.cxx:
                Added Cyg_Interrupt::set_cpu() and Cyg_Interrupt::get_cpu() for
                SMP systems.

                * include/instrmnt.h: Added events for INTR_GET_CPU and
                INTR_SET_CPU.

        2001-05-29  Nick Garnett  <nickg@cygnus.co.uk>

                The following changes were all imported from the SMP branch:

                * tests/tm_basic.cxx:
                Modified to work in SMP configuration - mostly at present by
                ifdeffing out code I didn't want to fix.

                * include/sched.hxx:
                Moved scheduler lock operation into Cyg_Scheduler_SchedLock class.
                Converted current_thread, need_reschedule, and thread_switches
                into CPU indexed arrays. Added member functions to get and set
                these indirectly.
                Added start_cpu() to do per-CPU scheduler startup.

                * include/sched.inl:
                Converted scheduler lock/unlock functions to use new schedlock
                class.

                * src/sched/sched.cxx:
                Changed in line with sched.hxx.
                Added call to requeue() in unlock_inner() to restore current
                thread to run queue if necessary.       
                Moved most of scheduler startup to Cyg_Scheduler::start_cpu().
                Cyg_Scheduler::start() now also starts secondary CPUs in SMP
                systems.
                Added cyg_kernel_smp_startup() as entry point from HAL into kernel
                for secondary CPUs.

                * include/mlqueue.hxx:
                Added Cyg_RunQueue type and removed
                Cyg_SchedulerThreadQueue_Implementation type.
                Converted timeslice_count to CPU indexed array.
                Added requeue() member function to scheduler class.
                Added cpu member to thread implementation class, to record
                thread's current CPU.

                * src/sched/mlqueue.cxx:
                Changed behaviour when in SMP system to remove scheduled thread
                from run queue and replace it when preempted.
                Added some extra asserts, and removed some that are no longer true
                in an SMP system.

                * src/instrmnt/meminst.cxx: In SMP systems: added spinlock to
                protect instrument buffer, added CPU Id in top 4 bits of thread Id
                field.

                * src/common/thread.cxx:
                Converted to use accessor functions for need_reschedule and
                current_thread.
                Rearranged idle thread creation to create one for each CPU.

                * include/test/stackmon.h: Extended to handle stack usage for
                multiple idle threads.

                * include/thread.inl:
                Added some extra instrumentation.

                * include/smp.hxx:
                Added this file to contain all kernel SMP support. The main
                definitions exported by this file are spin lock and scheduler lock
                implementation classes, for both SMP and uniprocessor
                configurations.

                * src/intr/intr.cxx: 
                * include/intr.hxx:
                Converted interrupt disable counter to CPU indexed array. In
                intr.cxx: added lock of scheduler lock in interrupt_end() rather
                than in default interrupt VSR.

                * cdl/kernel.cdl: Added option to enable SMP support.

                * include/instrmnt.h: 
                * cdl/instrument.cdl: Added SMP instrumentation.

        2001-05-25  Nick Garnett  <nickg@cygnus.co.uk>

                * include/intr.hxx:
                * src/intr/intr.cxx: 
                Added default definition of CYGNUM_HAL_ISR_TABLE_SIZE. This is now
                used to declare the chain table so that architectures which have
                different sizes for the interrupt table and vector count will work
                correctly.

        2001-05-22  Nick Garnett  <nickg@cygnus.co.uk>

                * include/sched.hxx (class Cyg_Scheduler_Base):
                Added annotation to sched_lock.

                * cdl/instrument.cdl:
                Rename CYGNUM_KERNEL_INSTRUMENT_BUFFER_WRAP to
                CYGDBG_KERNEL_INSTRUMENT_BUFFER_WRAP as it appears in the code.

2001-07-27  Jesper Skov  <jskov@redhat.com>

        * src/intr/intr.cxx (chain_isr): Return isr_ret so caller (which
        may be an arbiter) can tell if the interrupt was handled.

2001-07-26  Gary Thomas  <gthomas@redhat.com>

        * src/common/clock.cxx (dsr): Fix problems mixing signed and
        unsigned values.  Normally only generated warnings, but...

2001-07-09  Jonathan Larmour  <jlarmour@redhat.com>

        * include/sched.inl (unlock_reschedule): Fix commenting.
        * src/sched/sched.cxx: Improve description of unlock_inner().

2001-06-21  Jonathan Larmour  <jlarmour@redhat.com>

        * src/common/thread.cxx (Cyg_Thread::Cyg_Thread): Initialize
        wakeup_count

2001-06-06  Hugo Tyson  <hmt@redhat.com>

        * tests/clocktruth.cxx: New file.  A test to get a sanity check on
        whether the clock is accurate to wallclock time, only useful for
        humans to watch really.  But important!

2001-05-31  Jonathan Larmour  <jlarmour@redhat.com>

        * include/thread.hxx (class Cyg_HardwareThread): Remove unused
        load_context() method.
        * include/thread.inl: Ditto.

2001-05-29  Jonathan Larmour  <jlarmour@redhat.com>

        * src/sched/bitmap.cxx (rem_thread): No need to set need_reschedule...
        rescheduling will happen automatically when the state changes.

        * src/sched/mlqueue.cxx (add_thread): No need to explicitly clear
        thread->queue.

2001-04-26  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/intr0.cxx: 
        * tests/kintr0.c:
        Fixed these two tests so that they work properly on architectures
        where CYGNUM_HAL_ISR_MIN is not zero. These include the x86 and
        V850.

2001-04-18  Bart Veer  <bartv@redhat.com>

        * tests/dhrystone.c:
        Fix the conditional for STDIO_FORMATTED_IO

2001-04-17  Bart Veer  <bartv@redhat.com>

        * tests/stress_threads.c (setup_death_alarm):
        Cope with synthetic target reorg

        * tests/except1.cxx, tests/kexcept1.c:
        Reenable for the synthetic target

        * tests/tm_basic.cxx:
        Reenable for the synthetic target

2001-04-17  Jesper Skov  <jskov@redhat.com>

        * cdl/kernel.cdl: Do cache tests on E7T.

2001-04-05  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/flag1.cxx: Apply same changes here as were applied to
        kflag1 on 2000-07-17. This allows this test to run to completion
        in slow targets, especially simulators.

        * tests/stress_threads.c: Reduce run time even further in
        simulator runs where instrumentation is enabled.

2001-04-03  Jesper Skov  <jskov@redhat.com>

        * tests/dhrystone.c: Fix feature check.

2001-03-28  Jonathan Larmour  <jlarmour@redhat.com>

        * cdl/kernel.cdl: Only need to compile dbg_gdb.cxx with
        CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT

        * src/debug/dbg_gdb.cxx: Add new dbg_thread_id() function.

2001-02-23  Jonathan Larmour  <jlarmour@redhat.com>

        * include/thread.inl (attach_stack): Check for non-NULL stack base.

2001-02-11  Jonathan Larmour  <jlarmour@redhat.com>

        * tests/stress_threads.c: CYGINT_ISO_STDIO_FORMATTED_IO needs a
        #ifdef not an #if.
        * tests/dhrystone.c: Ditto.

2001-02-04  Jonathan Larmour  <jlarmour@redhat.com>

        * tests/kill.cxx: Increase delay for all targets, just in case some
        are slow.

2001-01-30  Hugo Tyson  <hmt@redhat.com>

        * src/common/clock.cxx (rem_alarm): Must clear the enabled flag;
        this disappeared in the changes to using clists of 2001-01-09.
        Symptom was that an alarm, once disabled, could never be
        re-attached to its counter because it claimed it already was.
        Plus asserts with multiple disables - "bad counter object".

2001-01-30  Hugo Tyson  <hmt@redhat.com>

        * src/common/thread.cxx (reinitialize): Following change of
        2000-12-05, if CYGFUN_KERNEL_THREADS_STACK_CHECKING, this was
        using the stack_base/stack_size variables directly to reinitialize
        the stack area.  This was wrong, and leaked store off the top and
        bottom of the stacks because the "buffer zone" was carved off
        repeatedly.  Fix is to use the published APIs which compensate.

2001-01-26  Nick Garnett  <nickg@cygnus.co.uk>

        * include/mlqueue.hxx: 
        * src/sched/mlqueue.cxx:
        Restored Cyg_ThreadQueue_Implementation::remove() since it must
        clear the thread's queue pointer, which the base clist class
        remove() does not.

2001-01-24  Jesper Skov  <jskov@redhat.com>

        * src/sched/mlqueue.cxx (highpri): Fix trace call.

2001-01-09  Nick Garnett  <nickg@cygnus.co.uk>

        * include/mlqueue.hxx:
        * src/sched/mlqueue.cxx: 
        Converted to use clist.hxx list implementation. The main effect of
        this is to clean up the code and class definitions since much of
        what was part of the thread queue and thread classes now moves to
        the DNode and CList classes.

        * include/clock.hxx:
        * src/common/clock.cxx: 
        Converted to use clist.hxx list implementation. This removes all
        the explicit list manipulation code from the counter and alarm
        classes, resulting in cleaner, easier to understand code.

        * include/kapidata.h: Adjusted cyg_alarm struct to match Cyg_Alarm
        using Cyg_DNode.
        
2000-12-22  Jonathan Larmour  <jlarmour@redhat.com>

        * include/thread.inl (check_stack): check word alignment with CYG_WORD
        not cyg_uint32
        Add extra stack checking for when stack limits are used.
        (measure_stack_usage): New function to measure stack usage of the thread
        (attach_stack): check word alignment with CYG_WORD not cyg_uint32
        Initialize stack to preset value when measuring stack usage
        (increment_stack_limit): Conditionalize here wrt 
        CYGFUN_KERNEL_THREADS_STACK_CHECKING and use the version in thread.cxx
        instead if CYGFUN_KERNEL_THREADS_STACK_CHECKING is defined.

        * src/common/thread.cxx (exit): If verbose stack measurement enabled,
        output stack usage
        (increment_stack_limit): Add version of this method when
        CYGFUN_KERNEL_THREADS_STACK_CHECKING *is* defined. This will add
        padding above the stack limit as necessary.

        * include/thread.hxx (class Cyg_HardwareThread): Add
        measure_stack_usage() member

        * cdl/thread.cdl (CYGFUN_KERNEL_THREADS_STACK_MEASUREMENT):
        Add to implement stack usage measurement.

        * include/kapi.h (cyg_thread_measure_stack_usage): New function
        * src/common/kapi.cxx (cyg_thread_measure_stack_usage): New function

2000-12-08  Jonathan Larmour  <jlarmour@redhat.com>

        * cdl/thread.cdl (CYGFUN_KERNEL_ALL_THREADS_STACK_CHECKING): 
        Requires threads list, rather than active_if them so that
        inference engine can do its thang.

2000-12-07  Jesper Skov  <jskov@redhat.com>

        * src/debug/dbg-thread-demux.c: Add comment about the use of
        DBG_SYSCALL_THREAD_VEC_NUM vs CYGNUM_CALL_IF_DBG_SYSCALL.

2000-12-06  Hugo Tyson  <hmt@redhat.com>

        * include/thread.inl (attach_stack): Additional assert check for
        unsigned wrap of the stack size in subtracting the signature
        areas' size.  Also round to whole words better.

2000-12-05  Hugo Tyson  <hmt@redhat.com>

        * cdl/thread.cdl (CYGFUN_KERNEL_THREADS_STACK_CHECKING): New
        option, to control new stack check features.  Enabled by default,
        but only active if CYGPKG_INFRA_DEBUG and CYGDBG_USE_ASSERTS
        anyway, plus checking *all* threads is possible, but default off,
        iff CYGVAR_KERNEL_THREADS_LIST.

        * include/thread.hxx (class Cyg_HardwareThread): Define
        check_stack() function.

        * include/thread.inl (attach_stack): Add initialization of a
        signature in the top and base of the stack, if so configured.
        (check_stack): New function to check that signature for
        correctness; minor re-ordering to permit more inlining.

        * src/sched/sched.cxx (unlock_inner): Check departing and incoming
        thread stacks if CYGFUN_KERNEL_THREADS_STACK_CHECKING.  Also, if
        CYGFUN_KERNEL_ALL_THREADS_STACK_CHECKING, check all registered
        thread stacks.  This is placed here to get executed every
        clocktick and other interrupts that call DSRs, rather than messing
        with interrupt_end() or the idle thread.

2000-12-04  Hugo Tyson  <hmt@redhat.com>

        * tests/kcache2.c (entry0): Make this more robust against a
        complete absence of useful caches.  Previous change was not
        careful enough.

2000-12-01  Hugo Tyson  <hmt@redhat.com>

        * cdl/kernel.cdl: Build the kcache tests for SA11x0 family; they
        were being omitted by default as part of ARM family.  They work on
        SA1110, so this should be OK.  They're OK on EBSAs too.  See
        associated fix to cache macros in SA11x0 and EBSSA HALs.

        * tests/kcache2.c (entry0): Fix the test; the problem was it
        assumed that a write to a previously unseen location would end up
        in the cache.  It ain't so on StrongARMs.  Also make tests safe
        wrt interrupts possibly perturbing the cache, add explicit tests
        for HAL_DCACHE_INVALIDATE_ALL(), ...DISABLE() and ...SYNC(), and
        improve the tests for cache line invalidate and store.

2000-10-30  Jesper Skov  <jskov@redhat.com>

        * cdl/synch.cdl: Replaced CYGINT_KERNEL_SCHEDULER_CAN_YIELD with
        CYGINT_KERNEL_SCHEDULER_UNIQUE_PRIORITIES.
        * cdl/scheduler.cdl:
        CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL requires
        CYGINT_KERNEL_SCHEDULER_UNIQUE_PRIORITIES.

        * tests/thread2.cxx: Use new option.
        * tests/klock.c: Same.
        * src/common/thread.cxx: Same.
        * src/common/clock.cxx: Same.

        * include/bitmap.hxx: Leave unique priority setting to CDL.
        * include/mlqueue.hxx: Same.
        * include/sched.hxx: Let CDL do sanity check of config.

2000-10-27  Jesper Skov  <jskov@redhat.com>

        * cdl/scheduler.cdl: Added CYGINT_KERNEL_SCHEDULER_CAN_YIELD

        * tests/klock.c: Avoid use of disabled features. Require scheduler
        that can yield.

2000-10-20  Jonathan Larmour  <jlarmour@redhat.com>

        * tests/bin_sem0.cxx:
        * tests/bin_sem1.cxx:
        * tests/bin_sem2.cxx:
        * tests/clock0.cxx:
        * tests/clock1.cxx:
        * tests/clockcnv.cxx:
        * tests/cnt_sem0.cxx:
        * tests/cnt_sem1.cxx:
        * tests/except1.cxx:
        * tests/flag0.cxx:
        * tests/flag1.cxx:
        * tests/intr0.cxx:
        * tests/kill.cxx:
        * tests/mbox1.cxx:
        * tests/mqueue1.cxx:
        * tests/mutex0.cxx:
        * tests/mutex1.cxx:
        * tests/mutex2.cxx:
        * tests/mutex3.cxx:
        * tests/philo.cxx:
        * tests/release.cxx:
        * tests/sched1.cxx:
        * tests/sync2.cxx:
        * tests/sync3.cxx:
        * tests/testaux.hxx:
        * tests/thread0.cxx:
        * tests/thread1.cxx:
        * tests/thread2.cxx:
        * tests/tm_basic.cxx:
        Make sure default priority constructors have been invoked.

        * include/intr.hxx (class Cyg_Interrupt): Make dsr_count volatile
        to prevent a potential race condition with overzealous C
        compilers.

2000-10-13  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sched/sched.cxx (unlock_inner): Added condition to test for
        DSRs to only call DSRs when the scheduler lock is making a 0->1
        transition. Otherwise there is the danger of calling DSRs when the
        scheduler lock is > 1. This violates our original assumptions
        about how the scheduler lock worked with respect to DSR. 

        * src/intr/intr.cxx (call_pending_DSRs): Added assert to check
        that DSRs are only called when the scheduler lock is exactly 1.

2000-10-13  Jesper Skov  <jskov@redhat.com>

        * include/intr.hxx: Fixing syntax mistake; volatile keyword must
        appear after the type for it to affect the pointer variable.
        * src/intr/intr.cxx: Same. Remove volatile from local block.

2000-10-05  Jesper Skov  <jskov@redhat.co.uk>

        * src/intr/intr.cxx: Made dsr_table_tail volatile as well.
        * include/intr.hxx: Ditto.

2000-10-05  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sched/sched.cxx: 
        * include/sched.hxx: Converted asr_inhibit from a bool to a
        counter. This is necessary to permit nesting of ASR inhibiting
        functions.

2000-10-04  Jesper Skov  <jskov@redhat.co.uk>

        * include/intr.hxx: Made dsr_list volatile.
        * src/intr/intr.cxx: Same. Also fix compiler warning.

2000-09-25  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sched/mlqueue.cxx:
        Added test for current thread not runnable in
        Cyg_Scheduler_Implementation::timeslice().  This is possible if a
        prior DSR has caused the current thread to be descheduled. Added
        an assert to Cyg_ThreadQueue_Implementation::rotate() for
        additional paranoia. (This problem was originally identified and
        fixed (differently) by Andrew Lunn <andrew.lunn@ascom.ch>.)

2000-09-13  Jesper Skov  <jskov@redhat.com>

        * tests/kexcept1.c (cause_exception): Use separate cause_fpe function.
        * tests/except1.cxx (cause_exception): Same.

        * tests/kexcept1.c (cause_exception): Do not use division at all.
        * tests/except1.cxx (cause_exception): Same.

        * tests/kexcept1.c (cause_exception): Do not cause div-by-zero.
        * tests/except1.cxx (cause_exception): Same.

2000-09-11  Jonathan Larmour  <jlarmour@redhat.com>

        * cdl/instrument.cdl (CYGVAR_KERNEL_INSTRUMENT_EXTERNAL_BUFFER): 
        Bring this option back from the dead

2000-09-08  Nick Garnett  <nickg@cygnus.co.uk>

        * include/sched.hxx:
        * include/sched.inl:
        Added Cyg_Scheduler::unlock_reschedule() function. This decrements
        the scheduler lock by one but also permits the current thread to
        be rescheduled if it ready to sleep, or there is a higher priority
        thread ready to run. This is to support use of various
        synchronization objects while the scheduler lock is claimed.

        * src/sched/sched.cxx (unlock_inner): Modified precondition to
        allow for functionality of unlock_reschedule().

        * src/sched/mlqueue.cxx:
        Now uses Cyg_SchedulerThreadQueue_Implementation for all runqueue
        pointers. It was using Cyg_ThreadQueue_Implementation in some
        places which meant we were trying to sort the run queues!
        Changed yield() so it can be called with the scheduler lock
        claimed.
        Changed Cyg_Scheduler_Implementation::timeslice() to rotate the
        queue itself rather than call yield(). The changes to yield() make
        it unsafe to call here any more.

        * include/mlqueue.hxx (class Cyg_SchedulerThreadQueue_Implementation): 
        Made enqueue() member public.
        
        * include/mboxt2.inl:
        * src/common/thread.cxx: 
        * src/sync/mutex.cxx: 
        * src/sync/cnt_sem2.cxx: 
        Removed assertions for zero scheduler lock and replaced some
        invocations of Cyg_Scheduler::unlock() with
        Cyg_Scheduler::unlock_reschedule() or Cyg_Scheduler::reschedule()
        where appropriate.

        * tests/klock.c:
        * cdl/kernel.cdl:
        Added klock.c to test functionality while scheduler lock is claimed.

2000-08-17  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/sched/sched.cxx (unlock_inner): Move an assert to some place
        where it's true *all* the time!  There was a narrow margin where a
        DSR could confuse unlock_inner() by reanimating the current thread
        before it had a chance to sleep - hence the call appears to be
        pointless.  Putting the assert before the DSR calls makes sense.

        * include/mboxt.inl:
        * src/sync/bin_sem.cxx:
        * src/sync/cnt_sem.cxx:
        * src/sync/flag.cxx:
        * src/sync/mutex.cxx:
        All of these now use Cyg_Scheduler::reschedule() rather than an
        unlock/lock pair to yield in their functions which can sleep.
        They therefore can be called safely and atomically with the
        scheduler already locked.  This is a Good Thing[tm].  Since the
        network stack synch primitives now use this feature, the asserts
        that the scheduler was not locked must disappear: this change.


2000-08-07  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * include/mutex.hxx (class Cyg_Mutex): Add comment explaining
        presence of locked.

2000-08-04  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * tests/stress_threads.c (STACK_SIZE_HANDLER): Increase stack sizes
        otherwise it crashes!

2000-07-31  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * include/mempolt2.hxx: As per change of 2000-07-04, also delete - left
        behind accidentally

2000-07-20  Nick Garnett  <nickg@cygnus.co.uk>

        * include/mutex.hxx (class Cyg_Mutex): Added get_ceiling()
        accessor function.

        * src/sched/mlqueue.cxx: Fixed bug in sorted queue code that
        resulted in an infinite loop if the thread being inserted is of
        lower priority than all threads in the queue. This case is now
        detected early.

2000-07-17  Gary Thomas  <gthomas@redhat.com>

        * tests/kflag1.c (FIRST_THREAD_WAIT_TIME): Parameterize thread 
        synchronization wait times (for understanding) and adjust for
        incredibly slow platforms.  [Previous value allowed for the test
        to get out of sync because the code ran so slowly]

2000-07-04  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * cdl/kernel.cdl: Remove all configury related to memory allocators,
        including tests. Make CYGFUN_KERNEL_API_C require CYGFUN_MEMALLOC_KAPI

        * include/memfixed.hxx, include/mempolt2.inl, include/mempoolt.hxx,
          include/mempoolt.inl, include/memvar.hxx, include/mfiximpl.hxx,
          include/mfiximpl.inl, include/mvarimpl.hxx, include/mvarimpl.inl, 
          src/mem/memfixed.cxx, src/mem/memvar.cxx, tests/kmemfix1.c,
          tests/kmemvar1.c, tests/memfix1.cxx, tests/memfix2.cxx,
          tests/memvar1.cxx, tests/memvar2.cxx:
        Move to separate memory allocator package CYGPKG_MEMALLOC
        
        * include/kapi.h, include/kapidata.h, src/common/kapi.cxx:
        Remove memory allocator functionality - now implemented in
        CYGPKG_MEMALLOC

        * tests/dhrystone.c:
        Update configuration dependencies for new isoinfra design
        * tests/stress_threads.c:
        Likewise.
        Also fix early termination after DEATH_TIME_LIMIT so that 
        allocated resources are freed, and so more appropriate
        statistics are reported
        Also update to use mallinfo() interface to memory allocator

2000-06-23  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/kapi.h (cyg_scheduler_read_lock): New function, to
        return the value of the scheduler lock; this for implementing SPLX
        in the network stack.

        * src/common/kapi.cxx (cyg_scheduler_read_lock): New function.

2000-06-20  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sched/mlqueue.cxx (Cyg_ThreadQueue_Implementation::enqueue):
        Rewrote code to insert threads into priority sorted queue. The
        original code could not cope with a queue all of whose members
        were lower priority than the new thread - it looped for ever. Also
        provided fast paths for common and easily detected cases such as
        adding to a single element queue and adding at the front. By
        taking these cases out early, we can also simplify the code to
        search the queue.

2000-06-16  Gary Thomas  <gthomas@redhat.com>

        * cdl/kernel.cdl: Remove exception tests for CMA230 - not supported
        by hardware.

2000-06-16  Jesper Skov  <jskov@redhat.com>

        * src/intr/intr.cxx (chain_isr): Only call default_isr if no isrs
        in the chain reacted to the interrupt.

2000-06-15  Nick Garnett  <nickg@cygnus.co.uk>

        * include/mutex.hxx (class Cyg_Condition_Variable): Added an
        inline function, get_queue(), to return a pointer to the
        underlying thread queue. To be used mainly for comparing with a
        thread's current queue to decide whether it is waiting for a
        condition variable.

        * include/kapi.h:
        * src/common/kapi.cxx: 
        Changed return type of cyg_semaphore_wait() to match existing
        behaviour of Cyg_Counting_Semaphore::wait().
        Changed return type of cyg_cond_wait() to match new behaviour of
        Cyg_Condition_Variable::wait().

2000-06-09  Nick Garnett  <nickg@cygnus.co.uk>

        * include/mutex.hxx:
        * src/sync/mutex.cxx:
        Modified non-timeout condition variable wait() API to return
        cyg_bool. A true result indicates that the wait() terminated
        normally. A false result indicates that the wait() was terminated
        as a result of a release() or destroy operation. For most uses
        this distinction is irrelevant, but in some situations it is a
        useful bit of information to have.
        Also modified timeout condition variable wait to reacquire the
        mutex under all circumstances. This is the correct and consistent
        thing to do.

2000-06-08  Jesper Skov  <jskov@redhat.com>

        * src/debug/dbg-thread-demux.c: Use generic HAL feature to allow
        ROM/RAM intercalling.

2000-06-06  Jesper Skov  <jskov@redhat.com>

        * tests/kcache1.c (entry0): Skip invalidate tests on TX49. Too slow.

2000-05-30  Gary Thomas  <gthomas@redhat.com>

        * tests/dhrystone.c: Increase number of test loops for faster
        StrongARM platforms.

2000-05-22  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * cdl/scheduler.cdl (CYGIMP_KERNEL_SCHED_SORTED_QUEUES): Disable by
        default

        * src/sched/mlqueue.cxx (enqueue): Add to end of thread queue even
        when not priority ordered

2000-05-20  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * include/mqueue.hxx, include/mqueue.inl:
        Add POSIX-style message queue implementation
        
        * cdl/kernel.cdl: Add mqueue1 test
        * cdl/scheduler.cdl: Add new CYGIMP_KERNEL_SCHED_SORTED_QUEUES option

        * include/sema.hxx: Need thread.inl header, not just thread.hxx
        Make Cyg_Counting_Semaphore::peek() const since it is

        * src/sync/cnt_sem.cxx, src/sync/cnt_sem2.cxx, include/sema2.hxx:
        Make Cyg_Counting_Semaphore{2}::peek() const since it is

        * include/thread.hxx: don't want Cyg_Thread_queue::empty() to be marked
        inline in the class def, otherwise we get warnings elsewhere

        * include/mlqueue.hxx (Cyg_ThreadQueue_Implementation):
        Add set_thread_queue private method
        Add derived class Cyg_SchedulerThreadQueue_Implementation, and
        make scheduler implementation use it instead of
        Cyg_ThreadQueue_Implementation
        
        * src/mlqueue.cxx: Fix typo
        Support  CYGIMP_KERNEL_SCHED_SORTED_QUEUES, i.e. allow insertion
        into thread queue in order of thread priority, with oldest at the
        front
        (Cyg_ThreadQueue_Implementation::set_thread_queue): Add
        (Cyg_SchedulerThreadQueue_Implementation::enqueue): Add, like old
        one, except make it FIFO instead of LIFO by inserting at end of queue

2000-05-16  Jesper Skov  <jskov@redhat.com>

        * tests/dhrystone.c: More loops on the TX49

2000-05-15  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * cdl/counters.cdl (CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY): 
        Default to CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY

2000-05-04  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * include/instrmnt.h: Remove all CYG_UNUSED_PARAMs as they could
        cause problems when used with volatile arguments
        * src/intr/intr.cxx: Use CYG_UNUSED_PARAM to silence warning that
        appears because of the above change.

2000-05-02  Gary Thomas  <gthomas@redhat.com>

        * tests/kintr0.c:
        * tests/intr0.cxx: Correct test for cases when VSR_MIN or
        ISR_MIN are not zero (bad assumption).

2000-05-02  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * cdl/thread.cdl (CYGNUM_KERNEL_THREADS_DATA_LIBC): Don't need libc
        slot. Replace with CYGNUM_KERNEL_THREADS_DATA_ERRNO slot instead.       

2000-04-28  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sched/sched.cxx (unlock_inner):
        A significant change to the behaviour of this function.  The
        new_lock argument contains the value that the scheduler lock
        should have after this function has completed. If it is zero then
        the lock is being released and some extra work (running ASRs,
        checking for DSRs) is done before returning. If it is non-zero
        then it must equal the current value of the lock, and is used to
        indicate that we want to reacquire the scheduler lock before
        returning. This latter option only makes any sense if the current
        thread is no longer runnable, otherwise this function will do
        nothing.

        The result of this is that where we used to "blip" the scheduler
        lock to force a sleep, we now call reschedule(), which calls
        unlock_inner() with the current sched_lock value. The important
        difference is that there is not now the brief window between the
        calls where the lock is unclaimed. It also prevents ASRs being run
        at inopportune moments. In future this will also allow us to force
        threads to sleep even when they are deeply nested in the scheduler
        lock.

        * include/mutex.hxx:
        Added Cyg_Mutex::get_owner() to return pointer to owning thread.
        
        * include/sched.hxx:
        * include/sched.inl:    
        Added new_lock argument to unlock_inner(), added reschedule().
        Made set_asr_inhibit() and clear_asr_inhibit() available even when
        ASRs are disabled.

        * include/mboxt.inl:
        * src/sync/bin_sem.cxx: 
        * src/sync/cnt_sem.cxx:
        * src/sync/flag.cxx: 
        * src/sync/mutex.cxx: 
        Converted instances of "blipping" the scheduler lock into calls to
        Cyg_Scheduler::reschedule(), which is better behaved. Some calls
        to set_asr_inhibit() and clear_asr_inhibit() also added in various
        places.

2000-04-26  Jesper Skov  <jskov@redhat.com>

        * tests/kcache1.c: Also to flush testing with unified caches.

2000-04-26  Jesper Skov  <jskov@redhat.com>

        * tests/clockcnv.cxx: 
        * tests/dhrystone.c: 
        Renamed 850 HAL package.
        
2000-04-25  Jesper Skov  <jskov@redhat.com>

        * tests/kcache1.c: Fixed cache check to also look for unified
        caches.

2000-04-19  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/clockcnv.cxx:
        * tests/dhrystone.c:
        Only a few laps around the block on the v850...

2000-04-13  Nick Garnett  <nickg@cygnus.co.uk>

        * include/clock.hxx:
        * src/common/clock.cxx:
        Added Cyg_Alarm::get_times() member function to allow reading of
        trigger and interval values from an alarm.

2000-04-12  Nick Garnett  <nickg@cygnus.co.uk>

        * include/sched.hxx:
        * src/sched/sched.cxx:
        Added ASR support.

        * include/thread.hxx:
        Made Cyg_ThreadQueue::empty() an inline in class definition.

        * src/common/thread.cxx:
        Added CYG_REPORT_FUNCTION() to Cyg_Thread::exit().

        * include/kapidata.h:
        Brought thread structures up to date with kernel objects.

        * cdl/thread.cdl: 
        * cdl/scheduler.cdl:
        Added ASR configuration, minor tidies.

2000-04-12  Gary Thomas  <gthomas@redhat.com>

        * src/common/kapi.cxx (cyg_scheduler_safe_lock): 
        * include/kapi.h: Add 'cyg_scheduler_safe_lock()' function.

2000-04-12  Jesper Skov  <jskov@redhat.com>

        * cdl/interrupts.cdl: 
        * cdl/scheduler.cdl: 
        * cdl/counters.cdl: 
        Don't let interfaces define anything.
        
2000-04-07  Nick Garnett  <nickg@cygnus.co.uk>

        * include/sched.hxx:
        * include/thread.inl: 
        * src/sync/mutex.cxx: 
        * src/sched/sched.cxx: 
        * src/common/thread.cxx: 
        General reorganization of priority inversion protocol support,
        addition of priority ceiling protocol.

        * include/mlqueue.hxx:
        * src/sched/mlqueue.cxx: 
        Added timeslicing enable support.

        * cdl/thread.cdl: 
        * cdl/synch.cdl:
        Reorganized priority inversion protocol configuration to permit
        different protocols and dynamic choice.  Added configuration for
        condition variables to use a user-specified mutex.

        * cdl/scheduler.cdl:
        Added dynamic timeslicing enable option.

        * include/kapidata.h:
        Adjusted to match changes in other header files.

        * tests/mutex3.cxx: 
        * tests/sync3.cxx: 
        Modified these tests to match new priority inversion protocols
        configuration options.
        
2000-03-28  John Dallaway  <jld@cygnus.co.uk>

        * cdl/counters.cdl,
          cdl/interrupts.cdl,
          cdl/kernel.cdl,
          cdl/scheduler.cdl,
          cdl/synch.cdl,
          cdl/thread.cdl:

        Adjust documentation URLs.

2000-03-27  Gary Thomas  <gthomas@redhat.com>

        * tests/except1.cxx: 
        * tests/kexcept1.c: Avoid trying to generate data access errors
        on platforms that don't support them.

        * tests/kcache1.c: Ignore test if no [data] caches defined.

        * tests/stress_threads.c: Infer minimal configuration for platforms
        with small amount of memory (as opposed to platform special cases).

2000-03-27  Jesper Skov  <jskov@redhat.com>

        * src/sync/mutex.cxx: 
        * src/sched/sched.cxx: 
        * src/common/thread.cxx: 
        * src/common/clock.cxx:
        Use cyg_bool instead of bool for check_this().

        * tests/dhrystone.c: Requires CYGPKG_LIBC_MALLOC

2000-03-07  Jesper Skov  <jskov@redhat.com>

        * tests/mutex3.cxx: Minor tweak from Hugo to allow reduced runtime
        on sims.

2000-02-29  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * src/debug/dbg-thread-demux.c:
        CYG_HAL_SPARCLITE_SLEB -> CYGPKG_HAL_SPARCLITE_SLEB
        Also fix a comment typo

2000-02-29  Jesper Skov  <jskov@redhat.com>

        * tests/kcache1.c: Don't run last part of test on MIPS sim - it's
        very slow.

2000-02-25  Jesper Skov  <jskov@redhat.com>

        * tests/dhrystone.c: 
        * tests/tm_basic.cxx: 
        Don't allow use of devices for diag output when running performace
        tests.

2000-02-17  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * include/pkgconf/kernel.h: Make
        CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE_SIMPLE a cdl_component
        since it has children now

2000-02-17  Jesper Skov  <jskov@redhat.com>
        CR101202, CR902078
        * include/mvarimpl.inl: Avoid unlinking the list from the head
        during coalescing.

2000-02-11  Jesper Skov  <jskov@redhat.com>

        * tests/dhrystone.c (PASSES): Reduced for MPC8xx targets.

2000-02-10  Jesper Skov  <jskov@redhat.com>

        * tests/except1.cxx (except0_main): 
        * tests/kexcept1.c (except0_main):
        Also reclaim DATA_TLB_MISS vector if available.

2000-02-03  Jesper Skov  <jskov@redhat.com>

        * src/sched/lottery.cxx (schedule): CYG_HAL_POWERPC_x->CYGPKG_...

2000-02-01  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * tests/tm_basic.cxx (NTEST_THREADS): Reduce further to fit on small
        targets
        (NMBOXES): Likewise
        (NCOUNTERS): Likewise

        * src/common/clock.cxx: Rework last change - change types of
        clock_dsr_read and delta to unsigned instead

2000-01-31  Jonathan Larmour  <jlarmour@redhat.co.uk>

        * src/common/clock.cxx (isr): Use HAL_CLOCK_LATENCY, not HAL_CLOCK_READ
        (dsr): Likewise
        
        * cdl/counters.cdl (CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY): 
        Copy configury for this option here from include/pkgconf/kernel.h - it
        was left behind by accident

2000-01-31 Simon FitzMaurice  <sdf@cygnus.co.uk>
  * cdl/*.cdl:

  Adjust help URLs in line with new doc layout.
  
2000-01-31  Jesper Skov  <jskov@redhat.com>

        * tests/tm_basic.cxx: Use CYG_TEST_NA insetad of PASS when not
        applicable.

2000-01-28 Simon FitzMaurice  <sdf@cygnus.co.uk>
  * cdl/*.cdl:

  Adjust help URLs in line with new doc layout.
  
2000-01-26  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/clock.hxx (class Cyg_Clock): Add members to convert to
        and from this clock resolution and others.

        * include/clock.inl (convert): New Cyg_Clock member.

        * src/common/clock.cxx (construct_converter): New routine to
        factorize a rational (or very near neighbour) to help with clock
        tick conversions for a particular clock.
        (get_other_to_clock_converter):
        (get_clock_to_other_converter): Cyg_Clock member functions to
        construct converters to or from this clock, using above routine.

        * tests/clockcnv.cxx: New file: test the clock converters.

        * tests/PKGconf.mak (TESTS): Add clockcnv to the tests.

        * cdl/kernel.cdl: Add clockcnv to the tests.

2000-01-20  Hugo Tyson  <hmt@cygnus.co.uk>

        * cdl/synch.cdl
        (CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE_SIMPLE_RELAY):
        Change this to an active_if on simple prio-inh.  Was broken.

2000-01-19  Hugo Tyson  <hmt@cygnus.co.uk>

        * cdl/*.cdl: Add descriptions to a number of options &c which were
        lacking same, also tidied up other typos as noticed en passant.
        Also reorganized calculated opts about per-thread-data in
        thread.cdl; these are really for info only.

2000-01-19  Jesper Skov  <jskov@cygnus.co.uk>
        CR 902054
        * tests/stress_threads.c: Don't assert requested priority =
        allocated. Allow some flexibility of handler priorities.

2000-01-13  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/mutex3.cxx (control_thread): Add a CYG_TEST_INIT();
        Whoops!

2000-01-11  Hugo Tyson  <hmt@cygnus.co.uk>

        * cdl/kernel.cdl: Add new kernel test mutex3, put in to test
        RELAY prio inheritance extension.

        * tests/mutex3.cxx: New test case.  It tests mutex prio
        inheritance - or not - in a multiple thread manner, depending only
        on delays and the clock, so it tests that scheduling does the
        right thing, rather than simply checking reported priorities.

        * tests/PKGconf.mak: Add new kernel test mutex3, put in to test
        RELAY prio inheritance extension.

2000-01-11  Hugo Tyson  <hmt@cygnus.co.uk>

        * cdl/synch.cdl: New config option added,
        (CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE_SIMPLE_RELAY).

        * include/pkgconf/kernel.h: New config option added,
        (CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INHERITANCE_SIMPLE_RELAY).
        It is a child of ..._PRIORITY_INHERITANCE_SIMPLE and is really
        only there to turn off if you really want the old implementation.

        * src/sync/mutex.cxx (unlock): Add call to
        Cyg_SchedThread::relay_priority() when relinquishing the mutex, in
        order to relay any raised priority to the new owner.  Also count
        the mutex we are waiting for as well as those held for correct
        recovery in the case of inheriting priority then being killed, for
        example.

        * include/sched.hxx (class Cyg_SchedThread::relay_priority): New
        member function declared.

        * src/sched/sched.cxx (Cyg_SchedThread::relay_priority): New
        member function to implement pass-it-on or "discovered ceiling"
        priority inheritance extension to the simple algorithm.  Also use
        get_current_priority() in Cyg_SchedThread::inherit_priority() to
        let this work.

2000-01-11  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/clock.hxx (class Cyg_Counter::counter): make the counter
        volatile, otherwise a busy-wait loop for the real time clock to
        change never completes.

1999-12-23  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/sched/sched.cxx (inherit_priority): Fix bug; inheriting a
        2nd time would overwrite the saved initial_priority, so
        disinheriting had no effect.

1999-12-13  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/tm_basic.cxx (run_alarm_tests): Add new measurement of
        latency between alarm firing and thread resume

1999-12-13  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * cdl/kernel.cdl: Fix some minor mistakes in the lists of tests to
        build conditionally

1999-12-08  John Dallaway  <jld@cygnus.co.uk>

        * cdl/kernel.cdl:

        Conditionally build the tests 'stress_threads', 'kcache1' and
        'kcache2'.

1999-11-30  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/kapi.cxx (cyg_scheduler_lock, cyg_scheduler_unlock):
        assert good range for sched lock, and be defensive anyway.  This
        is in response to a long time taken to track down a "unlocked too
        many times" bug.

1999-11-24  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Size tests based on available resources,
        using MLT files.  Fall back if not available.

1999-11-22  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sched/bitmap.cxx (Cyg_Scheduler_Implementation::add_thread):
        Fixed typo in assertion, and moved it to a more useful place.

1999-11-03  John Dallaway  <jld@cygnus.co.uk>

        * cdl/kernel.cdl: Define all tests.

1999-10-29  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/PKGconf.mak: Enable cache tests for Cirrus Logic boards.

1999-10-27  John Dallaway  <jld@cygnus.co.uk>

        * cdl/kernel.cdl:

        Specify CYGPKG_KERNEL_TESTS in terms of testing
        source files.

1999-10-26  John Dallaway  <jld@cygnus.co.uk>

        * cdl/kernel.cdl:

        Define initial version of CYGPKG_KERNEL_TESTS for
        verification purposes.

1999-10-19  John Dallaway  <jld@cygnus.co.uk>

        * cdl/kernel.cdl:

        Define CDL options for package-specific CFLAGS.

1999-10-08  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kcache1.c: Fix array size.

        * src/sched/bitmap.cxx (add_thread): 
        * src/sched/mlqueue.cxx (add_thread): 
        Check for valid thread priority.

1999-10-07  John Dallaway  <jld@cygnus.co.uk>

        * cdl/counters.cdl,
          cdl/interrupts.cdl,
          cdl/scheduler.cdl:

        Specify radio buttons using CDL interfaces.

1999-10-06  Bart Veer  <bartv@cygnus.co.uk>

        * cdl/scheduler.cdl:
        Make the schedulers mutually exclusive via a cdl_interface

1999-10-05  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kcache1.c: Reduced memory footprint.

1999-09-25  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/stress_threads.c: Added date header and flush() calls.

1999-09-16  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/tm_basic.cxx (run_mutex_tests): Must unlock mutices before
        destroying, given the change below.

        * src/common/kapi.cxx (cyg_cond_destroy): Call the correct
        destructor.  As it happens, it didn't matter because all these
        destructors do is assert the queue is empty, and the queue is the
        2nd word in every case.
        (cyg_mutex_destroy): Call the destructor at all, so that
        assertions are made.

1999-09-13  Gary Thomas  <gthomas@cygnus.co.uk>

        * src/intr/intr.cxx (call_pending_DSRs_inner): Add assert to check
        for valid DSR (before trying to use it).

1999-09-13  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/stress_threads.c: Print out malloc system info.
        (print_statistics): Fix buglet.

1999-09-10  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/stress_threads.c: Print out more info. Reduce dump
        frequency as test runs.

1999-08-25  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/pkgconf/kernel.h: Add missing close brace in
        CYGIMP_KERNEL_COUNTERS_CLOCK_LATENCY CDL.

1999-08-24  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache1.c (entry0): Depending on architecture, set
        cyg_test_is_simulator for last two tests. Otherwise they take far
        too long and time out.

1999-08-23  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/intr0.cxx (vsr0): 
        * tests/kintr0.c (vsr0): 
        Add a comment to the effect that vsr0() is NOT a valid VSR on any
        known platform; VSRs must be writ in assembler.  Customer
        requested this, the examples are rather confusing otherwise.

1999-08-23  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        * src/common/clock.cxx:
        * tests/tm_basic.cxx:
        Added CYGVAR_KERNEL_COUNTERS_CLOCK_DSR_LATENCY to enable recording
        of DSR latency figures. Added code controlled by this option to
        clock and tm_basic. Also made interrupt latency measurement
        primarily dependent on CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY since
        whether HAL_CLOCK_LATENCY is defined is not sufficient.

1999-08-17  John Dallaway  <jld@cygnus.co.uk>

        * cdl/counters.cdl, cdl/interrupts.cdl, cdl/scheduler.cdl:

        Implement radio buttons using "FIXME radio" hack in
        description field for now.

1999-08-16  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/sload/sload.c: Rename AM32 to AM31

1999-08-12  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg_gdb.cxx (dbg_make_threadref): Extended test for
        uninitialized thread pointer.

1999-07-29  Jesper Skov  <jskov@cygnus.co.uk>

        * src/sync/mutex.cxx (lock): Removed assertion again. Not possible
        to determine if a violation wil cause a deadlock.

1999-07-27  Jesper Skov  <jskov@cygnus.co.uk>

        * src/sync/mutex.cxx (lock): Added simple assertion check for
        deadlocks.

        * tests/stress_threads.c: Only allow printf from main thread to
        prevent deadlocks.

1999-07-14  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/kcache1.c (entry0): Also perform timing tests with
        HAL_DCACHE_INVALIDATE_ALL and/or HAL_ICACHE_INVALIDATE_ALL in the
        loop if provided by the HAL.  Invalidating the Data cache can
        spoil clock operation, so elapsed time appears to be 0.

        * tests/kcache2.c (entry0): Replace the "if (0)" for having a
        copy-back cache with a proper test on a HAL macro.  Even though I
        couldn't actually get those parts of the test to work on the
        platform I'm currently working on.

        * tests/PKGconf.mak (TESTS): Do build kcache1 and kcache2 for the
        ARM_EBSA285; it seems kosher.  kcache2 does absolutely nothing, of
        course.
        
1999-07-09  Jesper Skov  <jskov@cygnus.co.uk>
        PR 20210, 20142
        * tests/stress_threads.c: Shifted thread priorities to make room
        for main() at priority 0.

        Fixed indentation.
        
1999-07-08  Jesper Skov  <jskov@cygnus.co.uk>
        PR 20244
        * tests/stress_threads.c: Changed cyg_user_start() to main()
        ensuring a bigger stack (it calls sprintf).
        Increased STACK_SIZE by 2kB for printf calls.

1999-06-30  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/dhrystone.c: Also NA-quit if CYGPKG_INFRA_DEBUG or
        CYGPKG_KERNEL_INSTRUMENT are enabled.

1999-06-23  Jesper Skov  <jskov@cygnus.co.uk>
        PR 20209
        * tests/dhrystone.c: Use fewer loops on ARM targets - they don't
        have a cache.

1999-06-22  Nick Garnett  <nickg@cygnus.co.uk>

        * src/intr/intr.cxx (Cyg_Interrupt::chain_isr): Was testing the wrong
        macro for the default ISR. Fixed.

        * src/common/clock.cxx (Cyg_RealTimeClock::isr): Add HANDLED bit
        to returned value.

1999-06-21  Jesper Skov  <jskov@cygnus.co.uk>
        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  <jskov@cygnus.co.uk>

        * tests/dhrystone.c: Added unsupported header.

1999-06-10  Hugo Tyson  <hmt@cygnus.co.uk>

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

1999-06-01  Hugo Tyson  <hmt@masala.cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>

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

        Updated to 2.1 from ftp.nosc.mil
        
1999-05-27  Nick Garnett  <nickg@cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>

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

1999-05-27  Jesper Skov  <jskov@cygnus.co.uk>

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

1999-05-26  Jesper Skov  <jskov@cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>

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

1999-05-25  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * 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  <hmt@cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>

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

1999-05-18  Hugo Tyson  <hmt@cygnus.co.uk>

        * 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  <hmt@masala.cygnus.co.uk>

        * 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  <gthomas@cygnus.co.uk>

        * 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  <nickg@cygnus.co.uk>

        The following changes were all made in a branch and are now being
        merged:
        
    1999-05-06  Nick Garnett  <nickg@cygnus.co.uk>

        * 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  <nickg@cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>

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

1999-05-07  Jesper Skov  <jskov@cygnus.co.uk>

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

1999-05-07  Jesper Skov  <jskov@cygnus.co.uk>

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

1999-05-06  Jesper Skov  <jskov@cygnus.co.uk>
        
        * tests/stress_threads.c: Reversed priorities of agents.

1999-05-06  Jesper Skov  <jskov@cygnus.co.uk>
        PRs 20040, (20027), 19991
        * tests/stress_threads.c: Added main_thread handling resource
        deallocation and printing.

1999-04-27  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>
        PR 19850
        * tests/stress_threads.c: Don't print text from alarm handler.

1999-04-28  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19945 workaround
        * tests/kexcept1.c: 
        * tests/except1.cxx:
        Made NA to PowerPC SIM.

1999-04-27  Gary Thomas  <gthomas@cygnus.co.uk>

        * 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  <hmt@cygnus.co.uk>

        * 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  <hmt@cygnus.co.uk>

        * 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  <rosalia@cygnus.com>

        * 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  <hmt@masala.cygnus.co.uk>

        * 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  <hmt@cygnus.co.uk>

        * 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  <jlarmour@cygnus.co.uk>

        * 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  <jlarmour@cygnus.co.uk>

        * 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  <rosalia@cygnus.com>

        * tests/stress_threads.c: applied Hugo's patch to fix stack sizes.
 
1999-04-19  Hugo Tyson  <hmt@cygnus.co.uk>

        * 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  <jskov@cygnus.co.uk>

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

1999-04-14  Gary Thomas  <gthomas@cygnus.co.uk>

        * 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  <rosalia@cygnus.com>

        * 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  <jskov@cygnus.co.uk>
        PR 19822
        * src/debug/dbg_gdb.cxx: Current thread's registers live in
        registers, not _registers.

1999-04-13  Mark Galassi  <rosalia@cygnus.com>

        * 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  <jlarmour@cygnus.co.uk>

        * 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  <hmt@cygnus.co.uk>

        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  <jskov@cygnus.co.uk>
        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  <jskov@cygnus.co.uk>

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

1999-04-07  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19743
        * include/mfiximpl.inl (Cyg_Mempool_Fixed_Implementation): Moved
        argument assertions before the first use of the arguments.

1999-04-07  Hugo Tyson  <hmt@cygnus.co.uk>

        * 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  <nickg@cygnus.co.uk>

        * 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  <gthomas@cygnus.co.uk>

        * 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  <nickg@cygnus.co.uk>

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

1999-03-24  Gary Thomas  <gthomas@cygnus.co.uk>

        * 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  <nickg@cygnus.co.uk>

        * 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  <gthomas@cygnus.co.uk>

        * 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  <nickg@cygnus.co.uk>

        * tests/tm_basic.cxx (run_all_tests): Changed initial delay from
        100 ticks to 2. This is adequate for the purpose of letting the
        clock get going, while 100 ticks was too long on simulators.

1999-03-23  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/kcache1.c:
        * tests/kcache2.c:
        * tests/kclock1.c:
        * tests/kexcept1.c:
        * tests/kflag1.c:
        * tests/kmbox1.c:
        * tests/kmemfix1.c:
        * tests/kmemvar1.c:
        * tests/kmutex1.c:
        * tests/ksched1.c:
        * tests/ksem1.c:
        * tests/kthread0.c:
        * tests/thread0.cxx:
        Use CYGNUM_HAL_STACK_SIZE_TYPICAL instead of "4096" and include
        hal_arch.h where necessary to get it.

1999-03-22  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/thread.inl (attach_stack): 
        Fix typo in assert; missing comma.

1999-03-22  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/debug/dbg-thread-syscall.h: Update copyright

1999-03-22  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/thread.inl:
        * src/common/thread.cxx:
        * tests/kthread1.c:
        * tests/testaux.hxx:
        * tests/thread1.cxx:
        * tests/thread_gdb.c:
        * tests/tm_basic.cxx:
        Use CYGNUM_HAL_STACK_SIZE_TYPICAL for the stack size instead of
        CYGNUM_HAL_MINIMUM_STACK_SIZE.
        Except for stack checking and the idle thread stack which uses 
        CYGNUM_HAL_STACK_SIZE_MINIMUM.

1999-03-19  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache1.c:
        * tests/kcache2.c:
        Made all CYG_INTERRUPT_STATE variables register variables. The
        value of this variable has to survive cache invalidation and does
        not in some testing permutations that are unoptimized.
        Fixes PR 19165.

        * include/kapi.h: Type of cyg_tick_count_t changed to cyg_uint64.
        Response to PR 19320.

1999-03-19  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Much better analysis of clock interrupt times.
        Print average deviation instead of variance.  Also print "confidence"
        numbers which are a measure of "how likely" a particular number would
        be relative to the mean and min of the sample set.

1999-03-17  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Improve messages and layout.
        Better message for 'hardware clock tick' value.

        * src/common/clock.cxx: Be more careful about clock latency delta
        values that are used/kept - some hardware can yield incorrect values.

        * tests/testaux.hxx: Use HAL recommended stack size for default.

1999-03-16  Nick Garnett  <nickg@cygnus.co.uk>

        * src/common/thread.cxx:
        Removed MIPS specific definition of idle_thread_stack[]. This is
        so it gets the benefit of the redefinition of
        CYGNUM_KERNEL_THREADS_IDLE_STACK_SIZE. This definition has also
        been made static, since the MIPS compiler would otherwise put it
        in the .data section.

        * include/intr.hxx (class Cyg_Interrupt):
        Changed implementation of Cyg_Interrupt::interrupts_enabled() to
        test the value of disable_counter, rather than the hardware.

1999-03-15  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache1.c:
        * tests/kcache2.c: 
        Added interrupt disables around cache operations. If these take
        too long, an inopportune interrupt can disrupt the cache contents,
        or result in the interrupt seeing an inconsistent world.

1999-03-15  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Improved and cleaned up messages overall.

1999-03-15  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19504
        * tests/tm_basic.cxx: Kill created threads after mutex, mbox and
        semaphore tests.

1999-03-12  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c: 
        Only try handling the SPARClite-SLEB vector correctly if
        CYG_HAL_USE_ROM_MONITOR_CYGMON ie. we are talking with CygMon.
        Otherwise the code is wrong, but also not used.  No matter.
        
1999-03-12  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/kthread1.c: 
        * tests/thread1.cxx: 
        * tests/thread_gdb.c: 
        Deal with CYGNUM_HAL_MINIMUM_STACK_SIZE requirement.

1999-03-12  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/thread.inl (attach_stack): Add check/assert for minimum
        stack size (HAL defined)

1999-03-11  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c (patch_dbg_syscalls): 
        Use the correct vector table slot for SPARClite-SLEB; it's not 15
        on here, it's BSP_VEC_MT_DEBUG from the hal's hal_cygm.h

1999-03-11  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/testaux.hxx:
        Move definition of inline placement operator new outside of ifdef
        for NTHREADS so that it can be used by other code.

        * tests/intr0.cxx:
        * tests/thread1.cxx:
        Make use of placement operator new rather than dynamic one in
        intr0. Removed duplicate definition from thread1.

1999-03-11  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19472
        * tests/kill.cxx: Increased delays for the synthetic target.

1999-03-11  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19468
        * tests/intr0.cxx (intr0_main): 
        * tests/kintr0.c (kintr0_main): 
        Only attach interrupt handlers to vectors not in use.
        
1999-03-10  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19368
        * src/sched/sched.cxx (start): Change the dependency for
        referencing the RTC to make its inclusion independent of scheduler
        choice.

1999-03-10  Jesper Skov  <jskov@cygnus.co.uk>
        PR 17357
        * src/intr/intr.cxx (attach): Assert that interrupt vector attach
        will succeed.

1999-03-10  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Changed names used to control clock frequency on TX39 target.

1999-03-08  Gary Thomas  <gthomas@cygnus.co.uk>

        * src/sync/mutex.cxx: Allow 'Cyg_Condition_Variable::wait()'
        to be entered with the scheduler locked (and thsu exit in
        the same state).  This will allow for fully thread-safe use
        of 'Cyg_Condition_Variable::wait()'.

1999-02-26  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/except1.cxx (except0_main): 
        * tests/kexcept1.c (except0_main): 
        Move CYG_TEST_GDBCMD back to being before CYG_TEST_INIT

1999-02-26  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19283

        * src/common/kapi.cxx: Changed cyg_exception_call_handler
        definition to be consistent with declaration.

        * include/kapi.h: Change cyg_code_t to signed type.

        * tests/except1.cxx (except0_main): 
        * tests/kexcept1.c (except0_main): 
        Init diag before making first output.

1999-02-26  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19284
        * tests/mutex2.cxx (mutex2_main): Set priorities in a different
        order.

1999-02-25  Nick Garnett  <nickg@cygnus.co.uk>

        * include/sched.hxx (class Cyg_Scheduler_Base):
        Added CYGBLD_ATTRIB_ASM_ALIAS(cyg_scheduler_sched_lock) to
        declaration of sched_lock member. This makes it have the given
        name in the object and assembler files. This in turn eliminates
        the need to have a C++ mangled name in the HAL.

        * src/intr/intr.cxx:
        Cyg_Interrupt::detach() was not translating the vector to a table
        index correctly in the chained case. Fixed.

1999-02-24  Nick Garnett  <nickg@cygnus.co.uk>

        * include/intr.hxx: 
        * src/intr/intr.cxx:
        Added an interrupt disable counter to
        Cyg_Interrupt::disable_interrupts() and
        Cyg_Interrupt::enable_interrupts().

1999-02-23  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Added support for 66MHz part.

        * include/instrmnt.h:
        Added CYG_INSTRUMENT_EVENT_MUTEX_RELEASE and
        CYG_INSTRUMENT_EVENT_MUTEX_RELEASED. This should have been part of
        the 1999-02-22 checkin.

1999-02-23  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/clock0.cxx, tests/clock1.cxx, tests/except1.cxx,
          tests/kcache1.c, tests/kcache2.c, tests/kclock0.c, tests/kclock1.c,
          tests/kexcept1.c, tests/kflag0.c, tests/kflag1.c, tests/kill.cxx,
          tests/kintr0.c, tests/kmbox1.c, tests/kmemfix1.c, tests/kmemvar1.c,
          tests/kmutex0.c, tests/kmutex1.c, tests/ksched1.c, tests/ksem0.c,
          tests/ksem1.c, tests/kthread0.c, tests/kthread1.c, tests/thread1.cxx:
        Use CYG_TEST_NA() rather than CYG_TEST_PASS_FINISH() for tests that
        are not applicable for this configuration

1999-02-22  Nick Garnett  <nickg@cygnus.co.uk>

        * include/kapi.h: 
        * include/mutex.hxx: 
        * src/sync/mutex.cxx: 
        * src/common/kapi.cxx: 
        * tests/mutex2.cxx:
        * tests/PKGconf.mak: 
        Added Kernel API support for thread release, which allows a thread
        to be broken out of any wait. Also added support for releasing all
        threads waiting to lock a mutex, both at C++ and Kernel API
        levels. Added a test program, mutex2, to test this fuctionality
        out.
        
1999-02-20  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/except.hxx: 
        * include/kapidata.h
        Rename CYG_EXCEPTION_COUNT -> CYGNUM_HAL_EXCEPTION_COUNT in line
        with HAL changes
        Rename deliver_exception() -> cyg_hal_deliver_exception()
        QA improvements

        * src/common/clock.cxx:
        Rename CYG_VECTOR_RTC -> CYGNUM_HAL_INTERRUPT_RTC in line with
        HAL changes

        * src/common/except.cxx:
        Rename CYG_EXCEPTION_* -> CYGNUM_HAL_EXCEPTION_* in line
        with HAL changes
        Allow for CYGNUM_HAL_EXCEPTION_MIN != 0
        Rename deliver_exception() -> cyg_hal_deliver_exception()
        Add more tracing, and fix some existing
        QA improvements

        * src/intr/intr.cxx:
        Rename CYG_ISR_* -> CYGNUM_HAL_ISR_* in line with HAL changes
        Add more tracing, and fix some existing
        QA improvements

        * src/sched/bitmap.cxx:
        * src/sched/mlqueue.cxx:
        * src/sync/mutex.cxx:
        Add more tracing and fix some existing
        QA improvements

        * tests/except1.cxx:
        * tests/kexcept1.c
        Rename CYG_EXCEPTION_* -> CYGNUM_HAL_EXCEPTION_* in line
        with HAL changes
        QA improvements
        Use new CYG_TEST_GDBCMD to tell GDB not to stop
        Remove special simulator case as it should now work

        * tests/intr0.cxx:
        * tests/kintr0.c:
        Rename CYG_ISR/VSR_* -> CYGNUM_HAL_ISR/VSR_* in line
        with HAL changes
        QA improvements         

1999-02-16  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/kexcept1.c (except0_main): Tell GDB to not stop on
        SIGBUS or SIGSEGV since we know we're going to cause an exception

1999-02-12  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/thread.cxx (idle_thread_stack): 
        Override CYGNUM_KERNEL_THREADS_IDLE_STACK_SIZE if
        CYGNUM_HAL_MINIMUM_STACK_SIZE demands it.

        * include/pkgconf/kernel.h (CYGNUM_KERNEL_THREADS_IDLE_STACK_SIZE):
        Document that this option can be overridden by HALs demands.

1999-02-11  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/dbg-thread-syscall.h: 
        * src/debug/dbg-thread-demux.c: 
        Added handling of dbg_scheduler_func calls.

1999-02-11  Nick Garnett  <nickg@cygnus.co.uk>

        * include/kapi.h: 
        * src/common/kapi.cxx: 
        Added API support for per-thread data.

        * include/kapi.h: 
        * src/common/kapi.cxx:
        * tests/ksem1.c: 
        * tests/tm_basic.cxx: 
        Changed arguments to Kernel C API semaphore functions to take
        cyg_count32 rather than cyg_ucount32. This makes them consistent
        with the underlying implementation and allows for negative counts
        in the future. Changed some tests to match.
        Fixes PR 17877.

1999-02-08  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kexcept1.c (entry0): 
        * tests/except1.cxx (entry0): 
        Don't call cause_exception on SIMs.

1999-02-05  Jesper Skov  <jskov@cygnus.co.uk>

        * src/common/clock.cxx (isr): Ignore a latency of 0 when finding
        min_clock_latency.

1999-02-04  Jesper Skov  <jskov@cygnus.co.uk>
        PR 19075
        * include/instrmnt.h: Slightly overdid the use of CYG_UNUSED_PARAM
        macros.

1999-02-04  Jesper Skov  <jskov@cygnus.co.uk>

        * src/intr/intr.cxx:
        Make instrumentation macros always use the parameters to avoid
        compiler warnings.

1999-02-03  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18075
        * tests/memfix1.cxx:
        * tests/kmemfix1.c:
        Make timing less sensitive.
        
1999-02-02  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/bin_sem2.cxx: Fixed compiler warning.

1999-02-02  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18971
        * tests/bin_sem2.cxx (bin_sem2_main): Reduce run time in SIM.

1999-02-01  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache2.c: Added calls to HAL_DCACHE_SYNC() before all
        relevant calls to HAL_DCACHE_DISABLE(). This should have been done
        on 1999-01-25 where is was only done to one instance.

1999-02-01  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Adjust stack sizes for platforms with
        limited memory.

1999-01-28  Nick Garnett  <nickg@cygnus.co.uk>

        * src/intr/intr.cxx: When using chained interrupts,
        interrupt_end() is passed NULL as the intr argument. If
        instrumentation is also enabled, the CYG_INSTRUMENT_INTR() calls
        will try to indirect through zero. Added ifdefs to avoid
        this. Also test intr for NULL before trying to post the DSR.
        Fixes PR 18771.

1999-01-28  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/tm_basic.cxx: Fixed strings.

1999-01-26  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/kcache1.c (time0): Waste much less time if running in a
        simulator.  Do only 40 loops instead of 4000.
        In consequence the nasty meddling with MAX_STRIDE depending on
        HAL_xxx_SIM package definitions can go.

1999-01-26  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18902
        * src/debug/dbg-thread-demux.c: Oops. Undid my change of 1999-01-21.

1999-01-25  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/common/except.cxx: Make global exception initialisation object
        be constructed at INTERRUPT priority

1999-01-25  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18002
        * tests/thread_gdb.c: Ensure that there are enough priorities.

1999-01-25  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18875
        * tests/tm_basic.cxx: Ensure that there are enough priorities.

1999-01-25  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache2.c (test_dstore): Added call to HAL_DCACHE_SYNC()
        before disabling cache. On some architectures disabling the cache
        would cause the following call to do nothing.
        Fixes PR 18849.

1999-01-22  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/tm_basic.cxx: Don't run on Linux target.

1999-01-21  Hugo Tyson  <hmt@cygnus.co.uk>
        These changes are to get tests working with the SPARClite port; it
        doesn't do 8-byte register access unless it's properly aligned.
        
        * tests/philo.cxx (cyg_start): 
        Use tests/testaux.hxx to get new threads, to get the alignment
        required; see below.

        * tests/thread2.cxx (thread2_main):
        Use tests/testaux.hxx to get new threads, to get the alignment
        required; see below.

        * tests/tm_basic.cxx: 
        Larger stack for greedy processor.

        * tests/testaux.hxx: 
        thread_obj[][] and stack[][] are now 8-byte aligned like certain
        processors require; Cyg_Thread contains cyg_tick_count which is
        64-bit so any "standalone" C++ object would be so aligned.  These
        dynamically allocated ones should be too.

1999-01-21  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18747
        * tests/flag1.cxx: Increase delays/timeouts to prevent failure
        when configured with full trace logging.

1999-01-21  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c: Removed PR 17327 workarounds.

1999-01-19  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/sched/sched.cxx (start): 
        CYG_REFERENCE_SYMBOL -> CYG_REFERENCE_OBJECT in line with
        cyg_type.h change

1999-01-19  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18824
        * src/sync/mutex.cxx: 
        * include/pkgconf/kernel.h: Let
        CYGMFN_KERNEL_SYNCH_CONDVAR_TIMED_WAIT require
        CYGFUN_KERNEL_THREADS_TIMER.

1999-01-18  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c (patch_dbg_syscalls): Added test
        for CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT in patch_dbg_syscalls().

1999-01-15  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/mvarimpl.inl (free): Memory list sort was incorrect.

        * tests/PKGconf.mak (TESTS): Don't build cache tests on
        some platforms.

1999-01-15  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18768
        
        * tests/kmbox1.c:
        * tests/mbox1.cxx:
        Increase delays used so the overhead of GDB packets doesn't make
        the tests fail.

1999-01-14  Jesper Skov  <jskov@cygnus.co.uk>

        * src/sched/sched.cxx (start): Use new CYG_REFERENCE_SYMBOL macro.

1999-01-14  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg_gdb.cxx: Extended return types to include success,
        fail and caller-do-it as required by msnyder.

        * src/debug/dbg-thread-demux.c: Moved prototype of dbg_scheduler()
        to dbg-threads-api.h.

1999-01-13  Jesper Skov  <jskov@cygnus.co.uk>

        * src/sched/sched.cxx (start): Better implementation of the
        real_time_clock reference.

1999-01-13  Jesper Skov  <jskov@cygnus.co.uk>

        * include/pkgconf/kernel.h: Disable CYGSEM_KERNEL_SCHED_TIMESLICE
        in CYG_HAL_ROM_MONITOR magic.

1999-01-07  Jesper Skov  <jskov@cygnus.co.uk>

        * include/pkgconf/kernel.h: Added RTC values for i386/Linux.


1999-01-12  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c:
        Changed API of patch_dbg_syscalls() to take a pointer to the start
        of the vector and insert several vectors.

        * src/debug/dbg_gdb.cxx:
        Added dbg_scheduler() function to allow debuggers to lock and
        unlock the scheduler. This helps when stepping multithreaded code.

        * include/sched.hxx:
        * include/sched.inl:
        Added Cyg_Scheduler::unlock_simple() to decrement the lock without
        rescheduling.

1999-01-05  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18574

        * src/sched/sched.cxx (start): Reference the real time clock to
        ensure it is included when linking.

1999-01-04  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/thread1.cxx:
        * tests/mbox1.cxx:
        * tests/kmbox1.c:
        * tests/kill.cxx:
        * tests/kflag1.c:
        * tests/kclock1.c:
        * tests/flag1.cxx:
        * src/common/thread.cxx:
        CYGFUN_KERNEL_THREADS_TIMER requires CYGVAR_KERNEL_COUNTERS_CLOCK
        so don't check for the latter explicitly.

1999-01-04  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18573

        * tests/thread1.cxx:
        * tests/mbox1.cxx:
        * tests/kmbox1.c:
        * tests/kflag1.c:
        * tests/flag1.cxx:
        Don't run tests that rely on delay() when delay() is only defined
        as an empty function.

1998-12-24  Bart Veer  <bartv@cygnus.co.uk>

        * src/sync/mutex.cxx: 
        * src/sync/mbox.cxx: 
        * src/sync/flag.cxx: 
        * src/sched/sched.cxx: 
        * src/mem/memvar.cxx: 
        * src/mem/memfixed.cxx: 
        * src/common/thread.cxx: 
        * src/common/clock.cxx:
        * include/mempoolt.inl: 
        * include/mempolt2.inl: 
        * include/mboxt2.inl: 
        * include/mboxt.inl:
        check_this() member functions should now be const

1998-12-22  Nick Garnett  <nickg@cygnus.co.uk>

        * include/instrmnt.h: Fixed casts for arguments to
        cyg_instrument() to work in C. Fixes PR 18413.

1998-12-21  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/pkgconf/kernel.h: Change AEB-1 clock scale.

1998-12-17  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Calculate system clock resolution
        based on 'CYGNUM_KERNEL_COUNTERS_RTC_RESOLUTION'

1998-12-16  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/pkgconf/kernel.h (CYGNUM_KERNEL_COUNTERS_RTC_PERIOD): 
        Add support for new ARM AEB-1.

1998-12-16  Hugo Tyson  <hmt@masala.cygnus.co.uk>

        * tests/intr0.cxx (intr0_main): 
        * tests/kintr0.c (kintr0_main): 
        Conditionally use a different interrupt vector number on tx39 when
        in the simulator (according to cyg_test_is_simulator) so that
        these tests execute correctly in simulators.
        
1998-12-16  Jesper Skov  <jskov@cygnus.co.uk>
        PR 18546

        * tests/kill.cxx (cyg_start): Do NOP test if required kernel
        functionality is disabled.

1998-12-15  Jesper Skov  <jskov@cygnus.co.uk>

        * include/pkgconf/kernel.h: Changed
        CYGDBG_KERNEL_DEBUG_GDB_INCLUDE_STUBS to
        CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS.

1998-12-14  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/tm_basic.cxx: Made use of cyg_mbox_get() conditional on
        CYGMFN_KERNEL_SYNCH_MBOXT_PUT_CAN_WAIT.

1998-12-14  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/tm_basic.cxx: Added requirement for kernel RTC.

1998-12-11  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kcache2.c: Added tests of three more macros.

1998-12-10  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kcache2.c: Added tests of three more macros.

1998-12-10  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/PKGconf.mak: 
        * tests/kcache2.c: 
        Added new cache test.

1998-12-04  Nick Garnett  <nickg@cygnus.co.uk>

        * include/intr.hxx:
        * src/intr/intr.cxx (cyg_interrupt_post_dsr): Added this function
        to allow functions in the HAL, which are always only in C, to call
        Cyg_Interrupt::post_dsr(). Have also returned post_dsr() to
        private parts of Cyg_Interrupt.

1998-12-04  Jesper Skov  <jskov@cygnus.co.uk>

        * include/intr.hxx (class Cyg_Interrupt): Made post_dsr public so
        it can be called from HAL interrupt arbiters.

1998-12-04  Jesper Skov  <jskov@cygnus.co.uk>

        * include/pkgconf/kernel.h (CYGNUM_KERNEL_COUNTERS_RTC_PERIOD):
        Set to the correct value for a 33.333MHz clock.

1998-12-02  Jesper Skov  <jskov@cygnus.co.uk>

        * src/intr/intr.cxx (interrupt_end, chain_isr): Got rid of magic
        interrupt constants.

1998-11-30  Gary Thomas  <gthomas@cygnus.co.uk>

        * include/pkgconf/kernel.h: Fix spelling of CYGVAR_KERNEL_COUNTERS_CLOCK

1998-11-25  Jesper Skov  <jskov@cygnus.co.uk>

        * src/common/thread.cxx (check_this): Check that stack_ptr is
        within its limits.

Wed Nov 25 18:45:12 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/sched.inl (unlock) (lock): 
        * src/common/thread.cxx (thread_entry): 
        * src/sched/sched.cxx (unlock_inner): 

        Ensure all accesses to sched_lock cannot be reordered by the
        optimiser

1998-11-24  Jesper Skov  <jskov@cygnus.co.uk>

        * src/common/thread.cxx (thread_entry): Prevent scheduler lock
        from being released too early.

1998-11-23  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        * src/common/clock.cxx:
        Added CYGIMP_KERNEL_COUNTERS_SORT_LIST option to determine whether
        the alarm lists in counters are sorted or not.

        * tests/tm_basic.cxx: Added a test for many alarms firing
        separately. 

1998-11-23  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kcache1.c: Only run with stride 1 on SIMs.

1998-11-19  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Insure appropriate kernel configuration for
        building tool.  Needs at least kernel C API and multi-level scheduler.

1998-11-18  Gary Thomas  <gthomas@cygnus.co.uk>

        * tests/tm_basic.cxx: Add interrupt latency support.  Print 
        results to 10ns accuracy.

        * tests/PKGconf.mak: Add 'tm_basic' (the kernel timing test
        program) to list of built tests.

        * src/intr/intr.cxx: Change usage of HAL_INTERRUPT_MASK to have
        trailing ';' to match similar macros.

        * src/common/clock.cxx: 
        * include/pkgconf/kernel.h: Add CDL option 
        CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY used to define if interrupt
        latency measurements should be built into kernel.

1998-11-17  Jesper Skov  <jskov@cygnus.co.uk>

        * include/pkgconf/kernel.h: Renamed CYG_HAL_POWERPC_MP860 to
        CYG_HAL_POWERPC_MPC860.


1998-10-28  David Moore  <dsm@keema.cygnus.co.uk>

        * include/pkgconf/kernel.h
        (CYGNUM_KERNEL_COUNTERS_RTC_RESOLUTION): Changed default value for
        MIPS simulator to be 0.01 secs instead of 0.001 seconds.

1998-10-28  Jesper Skov  <jskov@cygnus.co.uk>

        * tests/kcache1.c (HAL_DCACHE_PURGE_ALL): Fixed compiler problem
        on PowerPC.

1998-10-27  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache1.c:
        Added calls to HAL_DCACHE_PURGE_ALL() before each test.  Added
        local version of HAL_DCACHE_PURGE_ALL() if this is not supplied by
        the HAL.

1998-10-27  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/thread.cxx (wake): 
        Remove the thread unconditionally from any queue it was on; for we
        have just become not-asleep, so it must be OK.  (Bug was: it
        didn't happen in transit WAIT-SUSPEND -> SUSPEND, so synch object
        still believed the task was waiting on it).  PR#17998

1998-10-26  Jesper Skov  <jskov@cygnus.co.uk>
        PR 17527, PR 17837

        * tests/kcache1.c: 
        * tests/kclock0.c: 
        * tests/kclock1.c: 
        * tests/clock1.cxx: 
        * tests/clock0.cxx: 
        Do N/A PASS when kernel real-time clock is configured out.

1998-10-26  Jesper Skov  <jskov@lassi.cygnus.co.uk>
        PR 17866

        * include/pkgconf/kernel.h
        (CYGNUM_KERNEL_THREADS_IDLE_STACK_SIZE): Doubled to prevent stack
        overruns on PowerPC.

1998-10-26  Jesper Skov  <jskov@cygnus.co.uk>
        PR 17987

        * src/debug/dbg_gdb.cxx (dbg_threadinfo): Removed "more: <none>"
        output.

1998-10-23  John Dallaway  <jld@cygnus.co.uk>

        * tests/tm_basic.cxx: Added basic timing test.

1998-10-23  Nick Garnett  <nickg@cygnus.co.uk>

        * include/instrmnt.h:
        Improved documentation of cyg_instrument_enable() and
        cyg_instrument_disable().

        * src/instrmnt/meminst.cxx:
        Added code to enable and disable whole groups of events.

1998-10-23  Jesper Skov  <jskov@lassi.cygnus.co.uk>

        * include/generic-stub.h: Deleted. It was moved to hal common some
        time ago.

Fri Oct 23 04:45:12 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/kcache1.c: 
        Remove forced warning of a warning which no longer applies

1998-10-22  Nick Garnett  <nickg@cygnus.co.uk>

        * src/common/clock.cxx:
        Stop searching the alarm list when the current alarm is in the
        future in Cyg_Counter::tick().  Changed sense of comparison in
        Cyg_Counter::add_alarm() to sort alarms in ascending order.

Thu Oct 22 18:21:50 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        Fix commenting within CDL "comments"

Thu Oct 22 17:25:45 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        Remove CYGVAR_KERNEL_INSTRUMENT_EXTERNAL_BUFFER configuration
        option. For PR 17838

1998-10-21  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h (CYGNUM_KERNEL_COUNTERS_RTC_PERIOD):
        Changed value for JMR3904 board to 15360 which is correct for a
        24.576MHz board rather than 25MHz as before.

        * src/common/thread.cxx:
        Exchanged stack_base and stack_size in idle thread constructor.

1998-10-20  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/kflag1.c (kflag1_main): 
        Only mess with f2 if it exists, ie. CYGFUN_KERNEL_THREADS_TIMER.

1998-10-19  Mark Galassi  <rosalia@cygnus.com>

        * include/pkgconf/kernel.h: updated the doc URL

1998-10-19  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/kapi.h: 
        * include/kapidata.h (struct cyg_flag_t): 
        * src/common/kapi.cxx: 
        Add flags (Cyg_Flag, kernel.../flag.hxx) to the C API.

        * tests/PKGconf.mak (TESTS): 
        Add new tests for flags via the C API.

        * tests/kflag0.c: 
        * tests/kflag1.c: 
        New tests (well, versions of the plain C++ versions flag0.cxx and
        flag1.cxx) for flags via the kernel C API.
        
1998-10-19  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Fixed description of clock resolution.

1998-10-17  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Added a way of configuring the clock interrupt frequency.

Thu Oct 15 21:31:58 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Allow kernel to be disabled now

        * src/common/delete.cxx, src/common/memcpy.c, src/common/memset.c:
        Move these files to the infra package

        * src/PKGconf.mak:
        Don't build the above files any more

        Above changes are required for PR 17229

1998-10-15  Hugo Tyson  <hmt@masala.cygnus.co.uk>

        * include/mempoolt.inl (Cyg_Mempoolt): 
        * include/mempolt2.inl (Cyg_Mempolt2): 
        Flesh out the destructors to awaken any waiting threads
        with reason Cyg_Thread::DESTRUCT to support uITRON
        create and delete of memory pool objects.
        Note that only template mempolt2 is actually used.
        
Wed Oct 14 21:45:54 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/thread_gdb.c: 
        Remove unnecessary inclusion of <cyg/kernel/diag.h>

        * tests/kcache1.c: 
        Add a warning to expect the "function declaration isn't a
        prototype" warning from infra/diag.h

1998-10-14  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/thread.cxx (kill,reinitialize): 
        Do not refer to member timer unless CYGFUN_KERNEL_THREADS_TIMER is
        defined.
        
1998-10-14  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c:
        Now get dbg-threads-api.h from HAL.

        * src/debug/dbg_gdb.cxx:
        Tidied up info sent back by dbg_threadinfo().

        * src/common/thread.cxx:
        Changed constructor of idle thread to include initial priority and
        a thread name.

        * include/pkgconf/kernel.h:
        Moved GDB stub configuration code out to hal.h.

        * include/ktypes.h:
        Moved definition of CYG_LABEL_NAME() out to cyg_type.h.

        * src/debug/PKGconf.mak:
        * src/debug/dbg-threads-api.h:
        * src/debug/generic-stub.c:
        * src/debug/stubrom.c:
        * src/debug/thread-packets.c:
        * src/debug/thread-pkts.h:
        These files have all be relocated to hal/common.

1998-10-14  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/thread.hxx (class Cyg_Thread): 
        Add public members get_stack_base(), get_stack_size() and
        get_stack_limit();
        Add private members add_to_list() and remove_from_list() to
        centralize handling of the CYGVAR_KERNEL_THREADS_LIST as it is
        known.

        * include/thread.inl (class Cyg_Thread): 
        Add public members get_stack_base(), get_stack_size() and
        get_stack_limit();

        * src/common/thread.cxx: 
        Add private members add_to_list() and remove_from_list() to
        centralize handling of the CYGVAR_KERNEL_THREADS_LIST as it is
        known.
        Tidy up the two constructors to use them.
        Add CYG_REPORT_RETURN()/_RETVAL(...) logging throughout.
        Tidy up reinitialize() to use the 6-argument constructor,
        thus preserving the thread name.
        Fix some bugs in the CYGVAR_KERNEL_THREADS_LIST stuff where
        re-adding a thread caused loops in the list, and the like.
        Fix bug in set_priority() when the thread is asleep but NOT on any
        queue, such as a plain counted_sleep().

1998-10-14  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/thread-packets.c: 
        * src/debug/dbg_gdb.cxx: 
        Don't include hal_stub.h unless it's really, really, really
        needed.
                
1998-10-14  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/dbg_gdb.cxx: Don't include hal_stub.h unless it's really
        needed.

1998-10-13  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/generic-stub.c: Added thread support. Renaming a few
        functions/variables to match the most recent libstub
        generic-stub.c.
        Use thread_get_register & thread_put_register when handling GDB
        register packets.

        * src/debug/dbg_gdb.cxx (dbg_getthreadreg, dbg_getthreadreg):
        DTRT for current thread when CygMon is not configured.
        
        * src/debug/dbg_gdb.cxx (dbg_threadlist, dbg_getthreadreg,
        dbg_getthreadreg): return true/false rather than 0, 1, -1.
        
        * src/debug/dbg_gdb.cxx:
        * src/debug/dbg-threads-api.h: 
        Added dbg_currthread_id.

1998-10-08  Jesper Skov  <jskov@lassi.cygnus.co.uk>

        * src/debug/generic-stub.c: 
        * src/debug/generic-stub.h: 
        Added control of interrupts.
        Removed unused functions set_debug_trap and initialize_stub.
        
Tue Oct 13 17:36:29 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/test/tsttracc.c (cyg_start): 
        Replace CYG_REPORT_FUNCARGSVOID with the correct
        CYG_REPORT_FUNCARGVOID

1998-10-09  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/thread.cxx: 
        clear_timer() is a static which always affects the executing
        thread and none other.  Removed the "foo->" from various
        "foo->clear_timer()" calls to make this less confusing.
        Ditto set_timer().
        Changed a "clear_timer()" call to "timer.disable()" and added one
        so that they affect _this_ thread, the thread which is being
        kill()ed or reinitialize()d rather than the killer or the
        resuscitator.  Otherwise the alarm list can still get a loop in
        it when a thread's killed when waiting with a timeout and
        restarted soon enough.
        
1998-10-08  Hugo Tyson  <hmt@cygnus.co.uk>

        In general, these changes are to support create/delete of uITRON
        objects; this requires that an object can be destroyed whilst
        there are threads waiting on it, and that they shall be awoken
        with a specific return code.

        * include/thread.hxx:
        Cyg_Thread::DESTRUCT added to wake reasons, to deal with an object
        being destroyed whilst a thread is waiting on it; it's handled in
        a manner very similar to release() and BREAK wake_reason.
        
        * src/common/thread.cxx: 
        thread_entry(): threads now exit() if the entry_point returns.
        Cyg_Thread() constructors now initialize wake_reason to NONE.
        reinitialize() clears any pending timeout before calling
        constructors.
        counted_sleep( [timeout] ) now both deal with the wake reason in
        general, and with DESTRUCT in particular.
        exit() now clears any pending timeout.
        kill() now force_resumes the thread first.
        kill() now does not explicitly remove the thread from any queue
        it's on; wake() does that for you anyway.
        delay() clears the timer just in case and handles DESTRUCT
        properly.
        DESTRUCT added to various switches for completeness.

        The fixes to counted_sleep()[x2] and kill() are a bugfix for
        PR#17688.

        * include/flag.hxx:
        * src/sync/flag.cxx:
        Add an argument, defaulting to 0, to the constructor which sets
        the initial flag value.
        Add handing of DESTRUCT wake reason.
        Add a destructor which wakes all threads with DESTRUCT
        wake_reason.

        * include/mboxt2.inl:
        Add handing of DESTRUCT wake reason.
        Add a destructor which wakes all threads with DESTRUCT
        wake_reason.

        * src/sync/cnt_sem2.cxx:
        Add handing of DESTRUCT wake reason.
        Add a destructor which wakes all threads with DESTRUCT
        wake_reason.
        Correct typo in logic for queueing a waiting thread in
        Cyg_Counting_Semaphore2::wait( cyg_tick_count abs_timeout ).
        This is a bugfix for PR#17687.

        * include/mboxt.inl:
        * include/mempoolt.inl:
        * include/mempolt2.inl:
        * src/sync/bin_sem.cxx:
        * src/sync/cnt_sem.cxx:
        * src/sync/mutex.cxx:
        All these gain handling of the DESTRUCT wake_reason, that's all.
        
1998-10-08  Gary Thomas  <gthomas@penang.cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        Add support for new architecture

1998-10-07  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache1.c (entry0):
        Replaced CYG_TEST_FINISH() with CYG_TEST_PASS_FINISH().

        * src/debug/dbg-thread-demux.c:
        Added dbg_thread_syscall_rmt_1() to save/set and restore the $gp
        register values when being called from Cygmon.

Sun Sep 27 20:12:15 1998  David Moore  <dsm@keema.cygnus.co.uk>

        * include/mlqueue.hxx: 
        * include/bitmap.hxx: 
        Disallow more than 32 priority levels
        
        * include/pkgconf/kernel.h:
        Changed range of allowed levels from 64 to 32

1998-09-27  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/memfix2.cxx:
        Changed message to say "Fixed memory pool 2 OK" rather than
        "Variable memory pool 2 OK".

1998-09-26  Bart Veer  <bartv@cygnus.co.uk>

        * include/intr.hxx (DSRs_pending):
        PR 17500: if DSR support is disabled completely then this inline
        function should not be defined at all.

1998-09-26  Nick Garnett  <nickg@cygnus.co.uk>

        * tests/kcache1.c:
        Added this test program for cache API. Includes some performance
        testing.

1998-09-25  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg_gdb.cxx:
        Removed some debugging code.

        * tests/thread_gdb.c:
        Added this test program to allow for GDB thread support testing.

1998-09-25  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        The GDB thread support requires the kernel to keep track of all
        threads on a linked list. This is a separate option. An additional
        requires statement enforces the dependency.
        
1998-09-25  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c:
        Added include of <pkgconf/kernel.h>, removed debug code.

1998-09-24  Bart Veer  <bartv@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c (dbg_thread_syscall_rmt):
        PR 17327. If kernel gdb thread support is disabled, do not compile
        in the relevant cases in the rmt switch statement. This is a
        partial solution to the general problem of how the HAL, kernel,
        cygmon, and gdb interact.

1998-09-24  Nick Garnett  <nickg@cygnus.co.uk>

        * src/common/clock.cxx (Cyg_RealTimeClock):
        Changed clock priority from zero to one, since it is now used to
        set the hardware interrupt priority.

        * src/intr/intr.cxx:
        Cyg_Interrupt::chain_isr() now only calls interrupt objects that
        have the matching vector number.
        Call HAL_INTERRUPT_SET_LEVEL() when attaching interrupts using the
        priority passed in the constructor.
        Added call to HAL_TRANSLATE_VECTOR() for attaching chained
        interrupts.

        * include/instrmnt.h (CYG_INSTRUMENT_EVENT_INTR_CHAIN_ISR):
        Added this event.

Thu Sep 24 11:07:12 1998  David Moore  <dsm@keema.cygnus.co.uk>

        * tests/except1.cxx: 
        * tests/kexcept1.cxx: 
        Made exception tests detect when CYGPKG_KERNEL_EXCEPTIONS
        is disabled.
        

1998-09-22  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Changed the kernel package from type bool to type dummy, since
        it is not yet possible to disable this package.

1998-09-20  Mark Galassi  <rosalia@cygnus.com>

        * include/pkgconf/kernel.h: updated CDL doc strings.
        fixed some typos in my doc strings.

1998-09-18  Nick Garnett  <nickg@cygnus.co.uk>

        * src/common/thread.cxx: 
        * include/thread.inl:
        Modified threads list from a LIFO stack to a ring so that we can
        add new ones to the end and present the threads to GDB in an order
        that more closely matches how it assigns thread ids.
        
Wed Sep 16 19:11:22 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/thread.inl (get_unique_id): 
        Move this declaration to before its first use, so that the user
        knows it is inline at the point of use.  Avoids a warning.

Wed Sep 16 08:49:48 1998  Jesper Skov  <jskov@cygnus.co.uk>
        PR 17269
 
        * src/common/except.cxx (Cyg_Exception_Control): Replaced
        CYGNUM_EXCEPTION_MAX (bug!) with CYG_EXCEPTION_COUNT.
 
        * include/kapidata.h (struct cyg_exception_conrol): Replaced
        CYG_EXCEPTION_MAX (bug!) with CYG_EXCEPTION_COUNT.
 
        * src/intr/intr.cxx:
        * include/intr.hxx (class Cyg_Interrupt): Replaced CYG_ISR_MAX+1
        with CYG_ISR_COUNT.
 
        * include/except.hxx: Replaced CYGNUM_EXCEPTION_COUNT with
        CYG_EXCEPTION_COUNT.
 
        * tests/kintr0.c: 
        * tests/intr0.cxx: Replaced CYG_ISR_MAX (bug!) with
        CYG_ISR_COUNT.
 
Tue Sep 15 19:19:37 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/mboxt2.hxx:
        Add inclusion of thread.inl to silence warning

        * tests/kexcept1.c:
        Insert void as parameter list of __default_exception_vsr() to
        silence warning

Tue Sep 15 19:16:52 1998  David Moore  <dsm@keema.cygnus.co.uk>

        * src/sched/sched.cxx: Cleaned up comments.

1998-09-15  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg-thread-demux.c:
        Stubbed out led() function.

        * src/debug/dbg_gdb.cxx:
        Decide whether to byteswap thread id depending on reported byte
        order of target.
        Many small changes to debug code.

        * include/thread.inl (init_context):
        Changed CYG_DEBUG to CYGPKG_INFRA_DEBUG.

Tue Sep 15 09:35:14 1998  Jesper Skov  <jskov@cygnus.co.uk>
        PR 17236

        * src/common/clock.cxx (add_alarm): A retriggering alarm called
        with a trigger time in the past or now will be assigned a new
        trigger time. Don't find the counter list until the final trigger
        time is known.
        Also added a few #else error statements to catch a situation where
        no CYGIMP_KERNEL_COUNTERS_x_LIST implementation config is
        selected.
        
        * tests/clock0.cxx: Added extra ASSERT to ensure alarms enabled
        with a trigger time of now or in the past actually fire.
        * tests/kclock0.c: Same.
        
1998-09-15  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Cleaning up coonfiguration data (mostly improving the
        descriptions). 

Mon Sep 14 11:08:59 1998  Jesper Skov  <jskov@lassi.cygnus.co.uk>
        PR 17230

        * include/pkgconf/kernel.h: CYGIMP_KERNEL_INTERRUPTS_CHAIN
        requires CYGIMP_HAL_COMMON_INTERRUPTS_CHAIN.

1998-09-14  Mark Galassi  <rosalia@cygnus.com>

        * include/pkgconf/kernel.h: started adding CDL doc fields.

1998-09-12  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        Sort out exception handling options (PR 16953)
        Added missing descriptions (PR 17184)

Fri Sep 11 19:18:28 1998  Hugo Tyson  <hmt@masala.cygnus.co.uk>

        * include/clock.hxx (class Cyg_Alarm): 
        * src/common/clock.cxx (Cyg_Alarm::add_alarm): 
        PR#17182
        Move the code to synchronize a repeating alarm which had been
        firing in the dim and distant past with times in the future, which
        had been inline in Cyg_Alarm::enable(), into a function of its
        own, Cyg_Alarm::synchronize().  Call it from Cyg_Alarm::enable()
        and also from add_alarm() when the immediate time to fire is now
        or in the past; otherwise an initial time of, say, NOW-10 with an
        interval of 5 would just get lost.  Also corrected/commented the
        logic there to allow an alarm's handler to cancel itself.
        
Wed Sep  9 17:43:26 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/delete.cxx: 
        Control the provision of empty delete functions rather better, via
        an explicit option from the libc package.  Read the rather lengthy
        comment in delete.cxx for the explanation.
        Also note that the correct place for this functionality is in the
        infrastructure, and the same should be done for the C++ new
        functions also.

1998-09-09  Nick Garnett  <nickg@cygnus.co.uk>

        * src/common/thread.cxx:
        combined separate next_unique_id variables in both constructors.
        This would have caused duplicate thread ids to be generated.

        * include/thread.inl:
        Added code to initialize Cyg_HardwareThread::saved_context.

        * src/debug/dbg-thread-demux.c: 
        * src/debug/dbg_gdb.cxx:
        Many changes to get thread API working with Cygmon. Debug code
        currently left in place until complete testing is possible.

Tue Sep  8 17:17:32 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/pkgconf/kernel.h (CYGNUM_KERNEL_COUNTERS_RTC_PERIOD):
        Set up a sensible default RTC for CYG_HAL_MN10300_SIM different
        from that for the MN103002 or CYG_HAL_MN10300_STDEVAL1, so that
        sim tests run in less than geological time.  This is the same as
        the default value of before.

Fri Sep  4 18:25:02 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/sched/mlqueue.cxx (timeslice): 
        * src/sched/sched.cxx (unlock_inner): 
        Condition out the tracing macros here by default, for tracing
        these consumes the whole quantum.
        
1998-09-04  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Commented out the ROM monitor-specific option settings for now.
        
        * tests/kclock1.c: 
        * include/pkgconf/kernel.h: 
        * include/kapidata.h (struct cyg_counter): 
        Fixed typos in configuration option names.
        
1998-09-03  David Moore  <dsm@cygnus.co.uk>

        * include/pkgconf/kernel.h
        (CYGNUM_KERNEL_INTERRUPTS_DSRS_TABLE_SIZE):
        Fixed typo in configuration option name.

        * src/intr/intr.cxx:
        Fixed typo in configuration option name.
        Fixed cast to incorrect type.
        
1998-09-03  Nick Garnett  <nickg@cygnus.co.uk>

        * src/PKGconf.mak (COMPILE): 
        Added debug/dbg-thread-demux.c to COMPILE list.
        
        * src/debug/dbg_gdb.cxx (dbg_threadinfo): 
        Added first cut at providing thread state string.
        
        * src/debug/dbg-thread-syscall.h: 
        * src/debug/dbg-thread-demux.c: 
        Added these two files to implement the interface between Cygmon
        and eCos.
        
1998-09-03  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h (CYGSEM_KERNEL_MEMORY_COALESCE): 
        * include/mvarimpl.inl (Cyg_Mempool_Variable_Implementation): 
        Fixed typo in configuration option name.
        
        * include/pkgconf/kernel.h:
        Fixed type in configuration option name.

Wed Sep  2 19:01:02 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/mboxt.hxx:
        * include/mboxt.inl:
        * include/mboxt2.hxx:
        * include/mboxt2.inl:
        * include/mempolt2.hxx:
        * include/mempolt2.inl:
        * include/mempoolt.hxx:
        * include/mempoolt.inl:
        * include/sema2.hxx:
        * src/sync/cnt_sem2.cxx:
        * include/flag.hxx:
        * src/sync/flag.cxx:
        * include/kapi.h:
        * src/common/kapi.cxx:
        * tests/kmbox1.c:
        * tests/kmemfix1.c:
        * tests/kmemvar1.c:
        * tests/mbox1.cxx:
        * tests/memfix1.cxx:
        * tests/memvar1.cxx:
        Memory pool (both types) and message boxes (both types) and flags
        and cnt_sem2-type semaphores now all have absolute timeouts
        instead of relative ones in the timely wait functions.
        uITRON has changed to add the current time itself.
        Kapi changes are mainly name changes to make it clear that
        timeouts are now absolute.
        The tests (incl. kapi) add in the time themselves now.
        
1998-09-01  Tim Goodwin  <tgoodwin@cygnus.co.uk>

        * include/kapi.h:
        * src/common/kapi.cxx:
        * tests/kclock1.c:
        * tests/kexcept1.c:
        * tests/kmbox1.c:
        * tests/kmemfix1.c:
        * tests/kmemvar1.c:
        * tests/kmutex1.c:
        * tests/ksched1.c:
        * tests/ksem1.c:
        * tests/kthread0.c:
        * tests/kthread1.c:
        * src/test/kcache1.c:
        * src/test/kphilo.c:
        * tests/kphilo.c:
        * tests/lottery.c:
        Changes to cyg_thread_create() interface.

Tue Sep  1 18:49:06 1998  Hugo Tyson  <hmt@masala.cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        Moved and renamed CYG_DIAG_USE_DEVICE to infra and to
        CYGDBG_INFRA_DIAG_USE_DEVICE; kernel.h now includes infra.h as
        well as hal.h to ensure all its clients get the info too.
        
        * include/intr.hxx (class Cyg_Interrupt): 
        Add static member interrupts_enabled() to poll the current status;
        just to avoid calling the HAL directly, really.

        * include/diag.h: 
        Now just includes cyg/infra/diag.h, so that kernel-specific
        features can be added later - original diag.h has moved to infra,
        and is that includee.

        * src/PKGconf.mak: 
        Trace folder and its contents elided, now in infra.

        * src/trace/diag.c:
        * src/trace/fancy.cxx:
        * src/trace/null.cxx:
        * src/trace/simple.cxx:
        * src/trace/tcdiag.cxx:
        Deleted; all moved to infra, actually.

1998-09-01  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/dbg-threads-api.h: 
        * src/debug/dbg_gdb.cxx:
        Converted threadref from long long to char[8] as defined by Cygmon
        guys.

        * src/common/thread.cxx:
        Added scheduler lock around manipulations of thread list.

        * include/except.hxx:
        Now use CYG_EXCEPTION_COUNT to size handler arrays.

Mon Aug 31 17:53:12 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/memfixed.hxx, include/mempolt2.hxx, include/mempolt2.inl,
          include/mempoolt.hxx, include/mempoolt.inl, include/memvar.hxx,
          include/mvarimpl.hxx, include/mvarimpl.inl, src/mem/memfixed.cxx,
          src/mem/memvar.cxx:
        
        Add new get_allocation_size() method to return the size of a
        previously allocated block - trivial for fixed block allocator, and
        requiring a bit of poking around for the variable block allocator.

        This is required for the C library realloc() implementation. Strictly
        this only uses the variable block allocator, but the API can only be
        enhanced by also updating the template. As a result, this also meant
        doing it for the fixed block allocator. 

Mon Aug 31 09:51:37 1998  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/stubrom.c (cyg_start): Renamed from main().

Mon Aug 31 09:00:01 1998  Jesper Skov  <jskov@cygnus.co.uk>

        * src/common/thread.cxx: Fixed typo.

1998-08-28  Bart Veer  <bartv@cygnus.co.uk>

        * include/pkgconf/kernel.h, include/bitmap.hxx, include/clock.hxx,
          include/except.hxx, include/flag.hxx, include/instrmnt.h,
          include/intr.hxx, include/kapi.h, include/kapidata.h,
          include/mbox.hxx, include/mboxt.hxx, include/mboxt.inl,
          include/mboxt2.hxx, include/mboxt2.inl, include/memfixed.hxx,
          include/mempolt2.hxx, include/mempolt2.inl,
          include/mempoolt.hxx, include/mempoolt.inl, include/memvar.hxx,
          include/mlqueue.hxx, include/mutex.hxx, include/mvarimpl.inl,
          include/sched.hxx, include/sema.hxx, include/sema2.hxx,
          include/thread.hxx, include/thread.inl,
          include/pkgconf/kernel.h:
          src/common/clock.cxx, src/common/except.cxx,
          src/common/kapi.cxx, src/common/thread.cxx,
          src/debug/dbg_gdb.cxx, src/debug/generic-stub.c,
          src/instrmnt/meminst.cxx, src/instrmnt/nullinst.cxx,
          src/intr/intr.cxx, src/mem/memfixed.cxx, src/mem/memvar.cxx,
          src/sched/bitmap.cxx, src/sched/lottery.cxx,
          src/sched/mlqueue.cxx, src/sched/sched.cxx,
          src/sync/cnt_sem.cxx, src/sync/cnt_sem2.cxx, src/sync/flag.cxx,
          src/sync/mbox.cxx, src/sync/mutex.cxx, src/test/diag.cxx,
          src/test/kcache1.c, src/test/main.cxx, src/test/timer.cxx,
          src/test/tstmbox.cxx:
          tests/clock0.cxx, tests/clock1.cxx, tests/except1.cxx,
          tests/flag1.cxx, tests/intr0.cxx, tests/kclock0.c,
          tests/kclock1.c, tests/kexcept1.c, tests/kintr0.c,
          tests/kmbox1.c, tests/kmemfix1.c, tests/kmemvar1.c,
          tests/kmutex0.c, tests/kmutex1.c, tests/ksched1.c,
          tests/ksem0.c, tests/ksem1.c, tests/kthread0.c,
          tests/kthread1.c, tests/lottery.c, tests/mbox1.cxx,
          tests/memfix1.cxx, tests/memvar1.cxx, tests/sync3.cxx,
          tests/thread2.cxx :
        Provide configuration data and rename configuration options

Fri Aug 28 15:27:31 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/trace/fancy.cxx: 
        * src/trace/simple.cxx: 
        * src/trace/null.cxx: 
        Condition on newly named symbols from the infra package, whence
        these units will be moved soon.
        
Fri Aug 28 09:33:17 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/test/demo.cxx, src/test/kcache1.c, src/test/kphilo.c,
          src/test/main.cxx, src/test/philo.cxx, src/test/sload.c,
          src/test/timer.cxx, src/test/tstflag.cxx, src/test/tstmbox.cxx,
          src/test/tstmpf.cxx, src/test/tstmpool.cxx, src/test/tsttracc.c,
          src/test/tsttrace.cxx, tests/bin_sem0.cxx, tests/bin_sem1.cxx,
          tests/bin_sem2.cxx, tests/clock0.cxx, tests/clock1.cxx,
          tests/cnt_sem0.cxx, tests/cnt_sem1.cxx, tests/except1.cxx,
          tests/flag0.cxx, tests/flag1.cxx, tests/intr0.cxx, tests/kclock0.c,
          tests/kclock1.c, tests/kexcept1.c, tests/kill.cxx, tests/kintr0.c,
          tests/kmbox1.c, tests/kmemfix1.c, tests/kmemvar1.c, tests/kmutex0.c,
          tests/kmutex1.c, tests/kphilo.c, tests/ksched1.c, tests/ksem0.c,
          tests/ksem1.c, tests/kthread0.c, tests/kthread1.c, tests/lottery.c,
          tests/mbox1.cxx, tests/memfix1.cxx, tests/memfix2.cxx,
          tests/memvar1.cxx, tests/memvar2.cxx, tests/mutex0.cxx,
          tests/mutex1.cxx, tests/philo.cxx, tests/release.cxx,
          tests/sched1.cxx, tests/sync2.cxx, tests/sync3.cxx,
          tests/thread0.cxx, tests/thread1.cxx, tests/thread2.cxx:
        Change entry points from main() to cyg_start(), and remove return
        codes - while main returned an int, cyg_start() returns void. It has
        no meaning anyway - what could you do with the code?

        * src/test/tsttracc.c, src/test/tsttrace.cxx:
        Also change trace calls (CYG_REPORT_...) to reflect that it is a
        function called cyg_start with no args returning void, rather than
        what it was for main(argc, argv)

Fri Aug 28 09:24:41 1998  Jesper Skov  <jskov@cygnus.co.uk>

        * src/debug/generic-stub.c: Moved strcpy/strlen from hal-stub to
        generic-stub. Cleaned up a bit to avoid compiler warnings.

Thu Aug 27 19:22:51 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * tests/kphilo.c (Philosopher): 
        * tests/philo.cxx (Philosopher): 
        * src/test/philo.cxx (Philosopher): 
        * src/test/kphilo.c (Philosopher): 
        * src/common/kapi.cxx: 
        Change CYG_RELEASE_DEBUG to CYGPKG_INFRA_DEBUG.
        These changes are self-contained, so they can go in right now.
        
Thu Aug 27 15:20:31 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/mvarimpl.inl (free): 
        Remove a couple of warning due to pointer comparison without casts
        in coallesce(sic.) code.

1998-08-26  Nick Garnett  <nickg@cygnus.co.uk>

        * include/kapidata.h:
        Added saved_context to cyg_hardwarethread structure to track
        GDB support in rest of kernel.

1998-08-25  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Added CYGIMP_KERNEL_THREAD_GDB_SUPPORT to configure for GDB
        interactions with the kernel.

        * src/debug/dbg-threads-api.h: 
        * src/debug/dbg_gdb.cxx:
        Added these files to repository to support GDB interactions
        with the kernel. Note that dbg-threads-api.h is a copy of a
        file in devo/libstub. Any changes there must be merged in here
        too.

        * src/PKGconf.mak:
        Added debug/dbg_gdb.cxx to COMPILE list.

        * include/thread.inl: 
        * include/thread.hxx:
        Added support for GDB, specifically for thread-aware debugging.

        * include/intr.hxx:
        * src/intr/intr.cxx:
        Added an extra argument to interrupt_end(): a pointer to
        the saved register state. This is optionally used to provide
        a more interesting saved register state for GDB.

Tue Aug 25 02:36:26 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/generic-stub.h: 
        Add void to empty prototype argument lists to silence compiler
        warnings

Fri Aug 21 18:46:34 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * src/common/clock.cxx (enable): 
        Make the maths work right if we only just set up the clock
        thingy.  Unsigned has a lot to answer for; when the next scheduled
        tick was all correct, the delta was -1, which correctly rounds to
        zero in the division.  But it isn't -1 it's 18446744073709551615
        which gave a shift of 15 in the the uITRON test programs.

Fri Aug 21 11:40:50 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/mboxt2.inl (put): 
        * include/mempolt2.inl (alloc): 
        Tidy Nick's changes (1998-07-27) for set_timer() semantics a bit,
        make it a bit more efficient and smaller code.
        
Thu Aug 20 17:37:35 BST 1998  Chris Provenzano  <proven@cygnus.com>

        * include/mvarimpl.inl, include/pkgconf/kernel.h:
        Added memory coallecsing to the variable size memory allocator.
        This option is enabled my default.

        * tests/stdlib/malloc2.c: Only print 50 messages, not 500.

1998-08-20  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Moved definition of CYG_KERNEL_USE_INIT_PRIORITY from here
        to hal.h.

        * include/thread.hxx:
        Changed argument to cyg_thread_entry() to CYG_ADDRWORD from
        CYG_ADDRESS.

        * include/ktypes.h:
        Moved constructor priority ordering stuff out to infra/cyg_type.h.

        * include/kapi.h: 
        * src/common/kapi.cxx:
        Added name and priority parameters to cyg_thread_create() and
        swapped stack size and base parameters. These changes are
        currently protected by DAY_OF_CHAOS ifdefs and are therefore
        inactive.

Wed Aug 19 19:06:16 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * tests/bin_sem1.cxx, tests/bin_sem2.cxx, tests/cnt_sem1.cxx,
          tests/flag1.cxx, tests/mbox1.cxx, tests/memfix2.cxx,
          tests/memvar2.cxx, tests/sync2.cxx, tests/sync3.cxx,
          tests/thread2.cxx, tests/release.cxx, tests/kill.cxx: 
        Reorder inclusion of thread.inl to silence warnings

Wed Aug 19 18:48:03 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/kernel.hxx: 
        Reorder inclusion of thread.inl to silence warnings

Wed Aug 19 18:21:31 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/common/kapi.cxx, src/sync/flag.cxx: 
        Reorder inclusion of thread.inl to silence warnings

        * src/sync/bin_sem.cxx, src/sync/cnt_sem.cxx, src/sync/cnt_sem2.cxx,
          src/sync/mbox.cxx:
        Add inclusion of thread.inl to silence warnings

        * src/common/memset.c:
        Make pointer arithmetic be on char *, not void * to silence warnings

        * include/diag.h, src/trace/diag.c:
        Make diag_init take void parameter, and give diag_printf explicit
        parameters in prototypes to silence warnings

1998-08-19  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        * src/common/thread.cxx:
        Added ifdef for CYGIMP_IDLE_THREAD_YIELD to support single
        priority configurations.

Tue Aug 18 16:56:38 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/thread.hxx, include/thread.inl: 
        To silence compiler warnings, move register_exception inline definition
        from the .hxx to the .inl. Also move attach_stack to before the
        constructor where it is invoked from.

1998-08-18  Nick Garnett  <nickg@cygnus.co.uk>

        * include/pkgconf/kernel.h:
        Moved all HAL specific config options out to a HAL config file.

        * include/kapi.h: 
        * src/common/kapi.cxx:
        Added cyg_scheduler_lock() and cyg_scheduler_unlock() to provide
        user access to the scheduler lock.

Mon Aug 17 21:39:20 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/kapi.h: 
        Insert "void" to empty parameter lists to silence warnings

Fri Aug 14 18:10:20 1998  Hugo Tyson  <hmt@masala.cygnus.co.uk>

        * src/common/thread.cxx (exit): 
        Set the state explicitly to EXITED rather than or'ing
        it in; should be safe cos it's what kill does in the normal case.
        Needed to avoid suspend sort of states persisting after death.
        One character changes are always aesthetically pleasing.

Fri Aug 14 17:28:01 1998  Hugo Tyson  <hmt@cygnus.co.uk>

        * include/pkgconf/kernel.h: 
        Add config options as below:

        * src/common/thread.cxx:
        Add asserts of CYGNUM_KERNEL_MAX_COUNTED_WAKE_COUNT_ASSERT
        and CYGNUM_KERNEL_MAX_SUSPEND_COUNT_ASSERT if they are defined.
        Also lazily tidied format of func hdrs as per code review et al.

1998-08-14  Nick Garnett  <nickg@cygnus.co.uk>

        * include/kapidata.h:
        Added support for thread names and thread housekeeping list.

        * src/common/delete.cxx:
        Added include for cyg_type.h.

        * include/pkgconf/kernel.h:
        Added CYGIMP_THREAD_NAME and CYGIMP_THREAD_LIST options.

        * include/thread.inl: 
        * include/thread.hxx:
        Added support for thread names and thread housekeeping list.

        * src/common/thread.cxx:
        Added support for thread names and thread housekeeping list.
        Fixed ordering bug in Cyg_Thread::delay().

Thu Aug 13 15:33:48 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * include/ktypes.h:
        Remove inlined new and delete as they aren't strictly permitted and
        they prevent a valid new and delete being defined anywhere else!
        
        * src/common/delete.cxx, src/PKGconf.mak: 
        Add delete.cxx to provide default delete operation for when a C
        library isn't present

1998-07-28  Nick Garnett  <nickg@cygnus.co.uk>

        * include/thread.hxx, include/sched.hxx, include/mlqueue.hxx,
          include/lottery.hxx, include/bitmap.hxx, src/common/thread.cxx,
          src/sched/sched.cxx, src/sched/mlqueue.cxx, src/sched/lottery.cxx,
          src/sched/bitmap.cxx:
        Added an alternative constructor to Cyg_Thread which takes
        arguments in new order, and includes a scheduling parameters
        argument. Propagated effects of this through Cyg_SchedThread
        and Cyg_SchedThread_Implementation. This mostly takes the form
        of passing the scheduling parameters through to the constructors.

1998-07-27  Nick Garnett  <nickg@cygnus.co.uk>

        * src/sync/flag.cxx, src/sync/cnt_sem2.cxx, include/mempoolt.inl,
          include/mempolt2.inl, include/mboxt2.inl, include/mboxt.inl:
        Modified code in API calls that take a timeout to allow for a
        timeout in the past.
        NOTE: The timeouts have for now been left as relative delays, they
        should be converted to absolute timeouts.

        * src/common/thread.cxx:
        Modified code in counted_sleep to allow for a timeout in the past.
        Added handling of EXIT wake_reason in delay().

1998-07-24  Nick Garnett  <nickg@cygnus.co.uk>

        * include/thread.inl:
        Reordered code in Cyg_Thread::set_timer() to init the timer after
        wake_reason has been assigned.

        * include/clock.inl: 
        Removed Cyg_Alarm::enable().
        
        * src/sync/mutex.cxx (Cyg_Condition_Variable::wait): 
        Modified order of code in timed version of wait to allow for a
        timout in the past.
        
        * src/sync/cnt_sem.cxx (Cyg_Counting_Semaphore::wait):
        Modified order of code in timed version of wait to allow for a
        timout in the past. Also modified timeout to be absolute rather
        than relative.

        * src/common/thread.cxx (Cyg_Thread::wake):
        Added test for whether a thread is actually asleep before waking
        it. Allows us to apply wake() to awake threads without damage.

        * src/common/clock.cxx:
        Added code to Cyg_Counter::add_alarm() to deal with alarms
        that trigger now or in the past.
        Moved Cyg_Alarm::enable() here. Added code to do the right thing
        when reenabling previously disabled interval alarms.

1998-07-23  Nick Garnett  <nickg@cygnus.co.uk>

        * src/debug/stubrom.c: Added header comments.

Thu Mar 26 18:25:36 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/test/philo.cxx:
        Rename CYG_DEBUG ifdef to CYG_RELEASE_DEBUG

Wed Mar 25 23:23:39 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * configure.in: Fix so non_arch.h is updated even if
        config.cache does exists.

        * include/kapi.h, include/kapidata.h, include/kernel.hxx
        * include/mboxt.inl, include/sched.hxx:
        #include <eccconf/kernel.h> instead of include <eccconf/kernel.h>

        * include/eccconf/kernel.h: Added. This was old devo/config.h

        * src/Makefile.am : Set CYG_CONFIGURATION to "<eccconf/kernel.h>"

        * src/test/Makefile.am : Build .gdbinit from gdbinit.in
        and tree from tree.in

Wed Mar 25 18:24:48 1998  Jonathan Larmour  <jlarmour@cygnus.co.uk>

        * src/Makefile.am, src/common/memcpy.c, src/common/memset.c:
          Move memcpy and memset functions from C library into kernel to
          satisfy the requirements of gcc - namely it must be available at
          at all time. Changed memcpy and memset to sit more cleanly in the
          kernel, and lose all dependencies on the C library
        * src/Makefile.in: regenerated

Fri Mar 13 18:36:42 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * configure.in : Add rule to get correct objcopy for target
        * src/test/Makefile.am : Add rule to build philo.srec

Fri Mar 13 11:47:23 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * configure.in, non_arch.h.in, non_arch.sh
        Add support for the mn103000

Thu Mar 12 11:38:28 GMT 1998  David Moore       <dsm@cygnus.co.uk>

        * src/Makefile.am:
        Removed flag to leave comments in generated linker script.
       
Thu Mar 12 10:55:20 GMT 1998  David Moore       <dsm@cygnus.co.uk>

        * configure.in:
        Fixed setting of platform variable

Wed Mar 11 16:54:28 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * src/test/Makefile.am, tests/Makefile.am:
        Make sure CXXFLAGS from configure are also used

Wed Mar 11 16:16:57 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * configure.in, non_arch.h.in. non_arch.sh:
        Added build support for mips 
        * tests/Makefile.am, src/test/Makefile.am
        Link with -nostdlib -lgcc

Wed Mar 11 14:43:36 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * Makefile.am, configure.in, tests/Makefile.am
        support building tests in the tests directory

Wed Mar 11 13:18:17 GMT 1998  Chris Provenzano  <proven@cygnus.com>

        * acinclude.m4, stamp-h.in, non_arch.h.in, src/Makefile.am:
        Added to support new kernel configure/make process

        * Makefile.am: Modified to support new kernel configure/make 
        process.

        * src/acinclude.m4, src/aclocal.m4, src/configure, src/configure.in
        Deleted to support new kernel configure/make process

        * Makefile.in, configure, aclocal.m4, src/Makefile.in, 
        src/configure: regenerated

        * non_arch.sh: New shellscript to change platform/startup/debug
        options after a configure is done.

        * src/devo/config.h: include non_arch.h, for platform/startup/debug
        options. This is generated at configure and modified by non_arch.sh

//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
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// or inline functions from this file, or you compile this file and link it
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