ecos-v3_0-branch: packages/kernel/current/ChangeLog history

* tests/intr0.cxx (intr0_main): Fix a compiler warning by changing

asl — Mon, 02 Mar 2009 20:15:43 +0000

* tests/intr0.cxx (intr0_main): Fix a compiler warning by changing
a CHECK() statement.

Update all copyright banners to reflect FSF ownership; fix and improve licence text.

jlarmour — Thu, 29 Jan 2009 17:47:46 +0000

Update all copyright banners to reflect FSF ownership; fix and improve licence text.

* tests/tm_basic.cxx (STACK_SIZE): Revert accidental change of

jlarmour — Thu, 18 Dec 2008 18:31:44 +0000

* tests/tm_basic.cxx (STACK_SIZE): Revert accidental change of
stack size back to CYGNUM_HAL_STACK_SIZE_MINIMUM. Changed by
accident at same time as change below of 2006-12-08.

* tests/tm_basic.cxx (max): Actually the meaning was right before,

jlarmour — Tue, 18 Nov 2008 14:04:59 +0000

* tests/tm_basic.cxx (max): Actually the meaning was right before,
it was just the name that was wrong. So revert below, and change
name to min.

* tests/tm_basic.cxx (max): Was wrong way round. Resolves issue

jlarmour — Fri, 14 Nov 2008 14:26:09 +0000

* tests/tm_basic.cxx (max): Was wrong way round. Resolves issue
1000636.

* tests/tm_basic.cxx (max): Resolve issue 1000636 with extra

jlarmour — Fri, 14 Nov 2008 14:10:21 +0000

* tests/tm_basic.cxx (max): Resolve issue 1000636 with extra
bracketing.

* include/thread.inl: Silence some warnings by assigning

jlarmour — Tue, 11 Nov 2008 04:31:57 +0000

* include/thread.inl: Silence some warnings by assigning
string literals to const char *, not char *.

* tests/intr0.cxx, tests/kintr0.c: As suggested by Bart Veer,

asl — Sat, 15 Sep 2007 14:42:39 +0000

* tests/intr0.cxx, tests/kintr0.c: As suggested by Bart Veer,
priorities of the interrupts created by intr0 and kintr0 can now
be overridden by the HAL through HAL_INTR_TEST_PRIO_x constants.

Add (char *) casts to make GCC/4.2.x happy.

gthomas — Mon, 02 Jul 2007 11:48:59 +0000

Add (char *) casts to make GCC/4.2.x happy.

* tests/klock.c (entry0, entry1): Modify mbox part of test to

nickg — Mon, 11 Jun 2007 13:23:45 +0000

* tests/klock.c (entry0, entry1): Modify mbox part of test to
reflect use of plain mbox implementation. The precise ordering of
events is slightly different.

* src/sched/mlqueue.cxx (add_thread, yield):

nickg — Mon, 08 Jan 2007 16:20:13 +0000

* src/sched/mlqueue.cxx (add_thread, yield):
* src/sched/sched.cxx (unlock_inner, thread_entry):
* include/mlqueue.hxx (class Cyg_SchedThread_Implementation):
* include/kapidata.h (CYG_SCHEDTHREAD_TIMESLICE_MEMBER):
* include/bitmap.hxx (class Cyg_SchedThread_Implementation):
Reimplement timeslicing code. There is now a timeslice_count field
in each thread which is moved to and from the per-CPU counter
during thread dispatch. This approach has been taken to minimize
the changes needed to SMP code. Scheduler specific thread
functions handle counter save, restore and reset. These functions
are defined (as empty inlines) even when timeslicing is disabled,
or in non-timeslicing schedulers, to avoid adding ifdefs to the
code (this change actually removes some).

* tests/timeslice2.c:
* cdl/kernel.cdl: Added timeslice2 test to test behaviour of
timeslicing while being preempted.

* src/sync/mbox.cxx (Cyg_Mbox::get): Fix compiler warning with gcc

asl — Sun, 07 Jan 2007 17:08:53 +0000

* src/sync/mbox.cxx (Cyg_Mbox::get): Fix compiler warning with gcc
version 4.1.2.

* cdl/synch.cdl: Added CYGIMP_MBOX_USE_MBOXT_PLAIN option. This is

nickg — Thu, 12 Oct 2006 15:41:49 +0000

* cdl/synch.cdl: Added CYGIMP_MBOX_USE_MBOXT_PLAIN option. This is
tested in various places but was not actually defined. It now is
and defaults to 1 so that the plain version of mail boxes is
selected.

* include/mboxt.inl:
* include/mboxt2.inl: Moved various CYG_ASSERTCLASS() calls to be
within scheduler locked regions. Race conditions could have caused
them to fail before.

* tests/mbox1.cxx:
* tests/kmbox1.cxx: Updated tests to work with mboxt
implementation. This requires thread 1 to run at lower priority
than thread 0.

* doc/kernel.sgml: Use reinterpret_cast, not static cast

jlarmour — Mon, 21 Aug 2006 17:13:45 +0000

* doc/kernel.sgml: Use reinterpret_cast, not static cast
Thanks to Tony Garland for the report in bug 1000299.

Fixed editing typo.

nickg — Fri, 11 Aug 2006 10:16:13 +0000

Fixed editing typo.

Implement FIFO variant of scheduling of DSRs and make it the

nickg — Fri, 11 Aug 2006 09:29:31 +0000

Implement FIFO variant of scheduling of DSRs and make it the
default. This is reworked patch originally suggested by Stefan
Sommerfeld .

* cdl/interrupts.cdl (CYGIMP_KERNEL_INTERRUPTS_DSRS_LIST): make it
cdl_component.
* cdl/interrupts.cdl (CYGSEM_KERNEL_INTERRUPTS_DSRS_LIST_FIFO):
new option for CYGIMP_KERNEL_INTERRUPTS_DSRS_LIST.
* include/intr.hxx (class Cyg_Interrupt): new static variable
dsr_list_tail.
* src/intr/intr.cxx (call_pending_DSRs_inner): add
CYGSEM_KERNEL_INTERRUPTS_DSRS_LIST_FIFO variant.
(post_dsr): likewise.
* tests/intr0.cxx: fix comments to match actual option names.
* tests/kintr0.c: likewise.2006-03-27 Marco Cruz

* host/instr/dump_instr.c: Use CYG_NELEM from infra.

asl — Fri, 19 May 2006 10:15:43 +0000

* host/instr/dump_instr.c: Use CYG_NELEM from infra.
* src/instrmnt/meminst.cxx: Use CYG_NELEM from infra.

* tests/stress_threads.c: Add string.h to avoid compiler warning.

asl — Tue, 09 May 2006 16:12:53 +0000

* tests/stress_threads.c: Add string.h to avoid compiler warning.

* doc/kernel.sgml: Fix typo

asl — Tue, 11 Apr 2006 19:18:01 +0000

* doc/kernel.sgml: Fix typo

2006-03-27 Marco Cruz

jlarmour — Tue, 28 Mar 2006 10:06:53 +0000

2006-03-27 Marco Cruz
* include/thread.hxx: removed extra qualifier of
Cyg_Thread::reinitialize() to permit compile on gcc 4.1.0
* include/sched.hxx: removed extra qualifier of
Cyg_Scheduler::thread_entry to permit compile on gcc 4.1.0

* tests/timeslice.c (STACK_SIZE): Reduce the stack size so it will

asl — Tue, 14 Feb 2006 19:10:06 +0000

* tests/timeslice.c (STACK_SIZE): Reduce the stack size so it will
compile on targets wit h only small amounts of RAM.
* tests/fptest.c: Calculate the size of ftp2_values array to fit
the amount of RAM in small systems.
* tests/clocktruth.cxx: Fix the header.

* src/sched/sched.cxx (thread_entry): Fixed a bug which could

nickg — Thu, 19 Jan 2006 17:53:58 +0000

* src/sched/sched.cxx (thread_entry): Fixed a bug which could
cause a thread to be started with a non-zero scheduler lock. The
previous code only decremented it by 1 so if the previous thread
was executing with the lock > 1 the thread ended up with a
non-zero lock. This is fixed by decrementing the lock in a loop
until it reaches zero.

* src/common/thread.cxx (idle_thread_main): Added an assert for a
non-zero scheduler lock.

* src/sched/sched.cxx:

nickg — Tue, 10 Jan 2006 15:52:54 +0000

* src/sched/sched.cxx:
* include/sched.hxx (class Cyg_Scheduler): Added thread_entry()
member function. This handles thread startup housekeeping. Zeroing
the scheduler lock is handled by calling unlock() so that DSRs may
be run.

* src/common/thread.cxx (thread_entry): Refactored code to call
Cyg_Scheduler::thread_entry() instead of doing all the work here.

* doc/kernel.sgml: Fix description of CYG_ISR_CALL_DSR and

asl — Wed, 23 Nov 2005 20:58:28 +0000

* doc/kernel.sgml: Fix description of CYG_ISR_CALL_DSR and
CYG_ISR_HANDLED. Fix example isr_function() accordingly.

* include/flag.hxx: We need thread.inl for the empty() function

asl — Sun, 23 Oct 2005 14:53:38 +0000

* include/flag.hxx: We need thread.inl for the empty() function
implementation which the compiler wants to inline.

* tests/ksem1.c: Type fix to fix a compiler warning.

asl — Wed, 03 Aug 2005 20:57:41 +0000

* tests/ksem1.c: Type fix to fix a compiler warning.
* tests/mutex3.cxx: new cannot be both static and global.
* tests/testaux.hxx: Ditto

* src/sync/mbox.cxx (tryget,peak_item): initialize local variable

asl — Sat, 30 Jul 2005 11:58:25 +0000

* src/sync/mbox.cxx (tryget,peak_item): initialize local variable
to avoid compiler warning.

* tests/kcache2.c (test_dcache_operation): Fixed compiler warnings

asl — Wed, 22 Jun 2005 18:27:37 +0000

* tests/kcache2.c (test_dcache_operation): Fixed compiler warnings
about formats strings for diag_printf.

* tests/tm_basic.cxx (_run_all_tests): Fixed compiler warning.

asl — Sun, 27 Mar 2005 17:29:58 +0000

* tests/tm_basic.cxx (_run_all_tests): Fixed compiler warning.

* cdl/scheduler.cdl: Correct the description of

asl — Wed, 15 Dec 2004 12:25:06 +0000

* cdl/scheduler.cdl: Correct the description of
CYGIMP_KERNEL_SCHED_SORTED_QUEUES

* src/sched/mlqueue.cxx (enqueue): Fix bug in sorted queue

nickg — Fri, 24 Sep 2004 16:57:12 +0000

* src/sched/mlqueue.cxx (enqueue): Fix bug in sorted queue
insertion: priority test was inverted. Spotted by TomChen.

Allow users to control the interrupt priority for the system clock,

bartv — Sun, 08 Aug 2004 21:12:25 +0000

Allow users to control the interrupt priority for the system clock,
and allow HALs to define a suitable default value

* tests/fptest.c (do_test): Silence aliasing warning when breaking

jlarmour — Fri, 16 Apr 2004 03:33:59 +0000

* tests/fptest.c (do_test): Silence aliasing warning when breaking
doubles into two ints.

* doc/kernel.sgml: Expanded the documentation about the use of

asl — Wed, 14 Apr 2004 09:32:03 +0000

* doc/kernel.sgml: Expanded the documentation about the use of
CYG_FLAG_WAITMODE_CLR.

* src/debug/dbg-thread-demux.c (dbg_thread_syscall_rmt): Only

asl — Sat, 27 Mar 2004 18:19:57 +0000

* src/debug/dbg-thread-demux.c (dbg_thread_syscall_rmt): Only
needed if CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT is enabled.

* include/kapi.h: Add throw specifications throughout.

jlarmour — Mon, 15 Mar 2004 15:20:53 +0000

* include/kapi.h: Add throw specifications throughout.
* src/kapi.cxx: Ditto.
* include/sched.inl: Move include of thread.inl further down to
allow Cyg_Scheduler inlines to be defined first.
* include/thread.inl: Reorder destructors section and include
sched.inl right before it to solve mutual header dependency
problems.

* doc/kernel.sgml: Document cyg_thread_delete return value.

jlarmour — Thu, 04 Mar 2004 02:17:54 +0000

* doc/kernel.sgml: Document cyg_thread_delete return value.

* tests/kmutex3.c (cyg_start): Use CYG_TEST_NA.

jlarmour — Thu, 19 Feb 2004 10:57:36 +0000

* tests/kmutex3.c (cyg_start): Use CYG_TEST_NA.
* tests/kmutex4.c (cyg_start): Ditto.
* tests/mutex2.cxx (cyg_start): Ditto.
* tests/mutex3.cxx (cyg_start): Ditto.
* tests/sync3.cxx (cyg_start): Ditto.
* tests/thread2.cxx (cyg_start): Ditto.

* tests/fptest.c (cyg_start): Use one line NA msg.
* tests/smp.cxx (cyg_start): Ditto.
* tests/timeslice.c (cyg_start): Ditto.
* tests/tm_basic.cxx (cyg_start): Ditto.

New API for cyg_thread_get_id() - from Dan Jakubiec

gthomas — Tue, 09 Dec 2003 15:10:39 +0000

New API for cyg_thread_get_id() - from Dan Jakubiec

* src/common/clock.cxx (Cyg_Counter::tick): Changed code to deal

nickg — Mon, 13 Oct 2003 17:20:18 +0000

* src/common/clock.cxx (Cyg_Counter::tick): Changed code to deal
with manipulation of unsorted lists (see ChangeLogs passim). There
are several corner cases where the current code does not
work. Replaced with a more straightforward, but slightly more
expensive, implementation.

* src/common/clock.cxx: Removed label/goto

nickg — Fri, 26 Sep 2003 17:41:30 +0000

* src/common/clock.cxx: Removed label/goto
add_alarm_unlock_return to get rid of compiler error when
CYGIMP_KERNEL_COUNTERS_SORT_LIST is enabled.

Minor documentation fix

bartv — Mon, 01 Sep 2003 14:48:06 +0000

Minor documentation fix

* cdl/counters.cdl: Removed the counters override CDL

nickg — Thu, 24 Jul 2003 20:27:28 +0000

* cdl/counters.cdl: Removed the counters override CDL
options. These are no longer very useful, since too much
non-kernel code now uses the HAL options to get these values.

* src/common/clock.cxx (Cyg_Counter::tick): In unsorted list case:

nickg — Thu, 10 Jul 2003 17:41:07 +0000

* src/common/clock.cxx (Cyg_Counter::tick): In unsorted list case:
moved saving of next node details to before re-insertion of alarms
with intervals. The call to add_alarm() can make enough of a
difference to the list to need to force a rescan.

Correct stack usage detection for stack checking configurations.

bartv — Sun, 06 Jul 2003 14:35:36 +0000

Correct stack usage detection for stack checking configurations.

* doc/kernel.sgml: Document that timeouts for timed functions are

jlarmour — Wed, 02 Jul 2003 03:39:41 +0000

* doc/kernel.sgml: Document that timeouts for timed functions are
absolute, not relative. Also document new semantics for
cyg_semaphore_timed_wait() for timeouts in the past.

* include/clock.hxx: Made Cyg_Counter::add_alarm() and

nickg — Tue, 01 Jul 2003 17:34:53 +0000

* include/clock.hxx: Made Cyg_Counter::add_alarm() and
Cyg_Counter::rem_alarm() private functions. They no longer lock
the scheduler, so should not be called directly, only via the
Cyg_Alarm functions.

* include/clock.inl: Removed inline version of
Cyg_Alarm::disable(). It's no longer a one-liner and is thus
better as a proper function.

* src/common/clock.cxx (Cyg_Counter::tick): Rewrote the unsorted
list option. If the function of one alarm adds or removes other
alarms, then is was possible for the list to become corrupted. The
new implementation attempts to avoid this problem.
(Cyg_Alarm::initialize): Added scheduler locking to protect the
enabled flag.
(Cyg_Alarm::enable): Ditto.
(Cyg_Alarm::disable): Ditto. Moved here from clock.inl.
(Cyg_Alarm::add_alarm): Removed scheduler locking, it is now
always called from functions that have already locked it. Added an
assertion to double-check this.
(Cyg_Alarm::rem_alarm): Ditto.

* cdl/kernel.cdl:
* tests/kalarm0.c:
Added new test to test that alarms can be added and removed in
alarm functions safely.

* src/common/clock.cxx (Cyg_Counter::rem_alarm): Bugfix: call

jlarmour — Wed, 25 Jun 2003 17:44:28 +0000

* src/common/clock.cxx (Cyg_Counter::rem_alarm): Bugfix: call
Cyg_Scheduler::lock() before calculation of index into alarm_list
array to avoid race condition with multi list counters.

* cdl/kernel.cdl: Added tests/bin_sem3 to list of kernel tests.

nickg — Mon, 23 Jun 2003 18:09:59 +0000

* cdl/kernel.cdl: Added tests/bin_sem3 to list of kernel tests.

* include/sema.hxx: Added declaration for wait with timeout for
Cyg_Binary_Semaphore.

* include/instrmnt.h: Added instrumentation point for binary semaphore
timeout.

* src/sync/bin_sem.cxx: Added wait with time-out function to
Cyg_Binary_Semaphore class.

* src/sync/cnt_sem.cxx: Modified semantics slightly to claim an
available semaphore even with a timeout in the past. This is in
line with the new timed wait in bin_sem.cxx.

* tests/bin_sem3.cxx: Created new test for timed wait binary
semaphore.

* src/common/kapi.cxx (cyg_thread_get_next): Passing a *current

asl — Tue, 20 May 2003 08:56:42 +0000

* src/common/kapi.cxx (cyg_thread_get_next): Passing a *current
pointer as NULL is how you start the walk of the linked list. So
don't assert on NULL. Reported by Daniel Lidsten.

Add CDL to control number of times 'tests' run.

gthomas — Tue, 06 May 2003 16:10:02 +0000

Add CDL to control number of times 'tests' run.

* include/mqueue.inl (Cyg_Mqueue::get): Fix invalid loop termination

jlarmour — Sat, 03 May 2003 14:22:13 +0000

* include/mqueue.inl (Cyg_Mqueue::get): Fix invalid loop termination
cheque for whether busy or not.
(Cyg_Mqueue::put): Ditto.

* tests/fptest.c: Make all variables static to avoid any risk

jlarmour — Mon, 03 Mar 2003 05:15:52 +0000

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

* include/kapidata.h: Revert change of 2001-08-23 and instead make

jlarmour — Thu, 27 Feb 2003 06:14:31 +0000

* 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.

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

nickg — Tue, 25 Feb 2003 18:42:00 +0000

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

* cdl/kernel.cdl: Update doc links.

jlarmour — Mon, 24 Feb 2003 14:06:54 +0000

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

* tests/fptest.c: Changed to run for a constant time rather than a

nickg — Wed, 19 Feb 2003 19:14:48 +0000

* 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.

Add debug prints to thread stack checking.

gthomas — Mon, 10 Feb 2003 22:02:15 +0000

Add debug prints to thread stack checking.

Minor test fixes

gthomas — Mon, 10 Feb 2003 21:07:47 +0000

Minor test fixes

* cdl/kernel.cdl:

nickg — Fri, 31 Jan 2003 11:44:02 +0000

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