changelog

ecos为实时嵌入式操作系统

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* src/debug/stubrom.c (cyg_start): Renamed from main().

Mon Aug 31 09:00:01 1998  Jesper Skov  <[e-mail]>

	* src/common/thread.cxx: Fixed typo.

1998-08-28  Bart Veer  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* include/mvarimpl.inl (free): 
	Remove a couple of warning due to pointer comparison without casts
	in coallesce(sic.) code.

1998-08-26  Nick Garnett  <[e-mail]>

	* include/kapidata.h:
	Added saved_context to cyg_hardwarethread structure to track
	GDB support in rest of kernel.

1998-08-25  Nick Garnett  <[e-mail]>

	* 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  <[e-mail]>

	* include/generic-stub.h: 
	Add void to empty prototype argument lists to silence compiler
	warnings

Fri Aug 21 18:46:34 1998  Hugo Tyson  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* include/kernel.hxx: 
	Reorder inclusion of thread.inl to silence warnings

Wed Aug 19 18:21:31 1998  Jonathan Larmour  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* include/kapi.h: 
	Insert "void" to empty parameter lists to silence warnings

Fri Aug 14 18:10:20 1998  Hugo Tyson  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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