changelog

ecos实时嵌入式操作系统

	* src/except.cxx: Removed some extraneous diag_printf()s.

2001-04-25  Bart Veer  <[e-mail]>

	* tests/tm_basic.cxx:
	This test is now functional on the synthetic target.

2001-04-20  Jonathan Larmour  <[e-mail]>

	* src/time.cxx (cyg_ticks_to_timespec): Actually don't bother
	with working out seconds using convertors. Instead just divide
	down ns from a long long.

2001-04-19  Jonathan Larmour  <[e-mail]>

	* src/time.cxx (cyg_ticks_to_timespec): Clock convertors round off,
	so adjust timespec accordingly.

2001-02-14  Jonathan Larmour  <[e-mail]>

	* include/pthread.h: Remove pthread_canceled() and
	pthread_testcancel_unlock().
	
	* src/pthread.cxx: Ditto.
	(pthread_join): Restructure to have function exit only at function end
	(pthread_cond_timedwait): Check for timeouts and return ETIMEDOUT

	* src/signal.cxx (sigtimedwait): Restructure cancellation testing

	* src/time.cxx (nanosleep): test for cancellation at the end of the
	function to keep Nick happy ;).

2001-02-11  Jonathan Larmour  <[e-mail]>

	* include/pthread.h: Add new pthread_testcancel_unlock and
	pthread_canceled functions as eCos extensions.
	Rename existing pthread_canceled variable to pthread_cancelled_dummy_var
	
	* src/pthread.cxx (pthread_canceled): New function to interrogate if
	current thread has deferred cancel pending
	(pthread_testcancel_unlock): New function. Like testcancel, but unlocks
	a mutex before exitting the thread.
	(checkforcancel): New internal function
	(pthread_join): Add thread cancellation checks.
	(pthread_cond_wait): Ditto.
	(pthread_cond_timedwait): Ditto.
	(pthread_testcancel): Use checkforcancel()
	
	* src/sem.cxx (sem_wait): Add thread cancellation checks
	* src/signal.cxx (sigtimedwait): Ditto.
	Also make compilation of this file conditional on CYGPKG_POSIX_SIGNALS
	* src/time.cxx (nanosleep): Ditto.
	Also make compilation of this file conditional on CYGPKG_POSIX_TIMERS

	* cdl/posix.cdl (CYGPKG_POSIX_TIMERS): Implements POSIX timer ops.
	Add explicit kernel and pthread dependencies.

	* tests/sigsetjmp.c (pthread_entry1): Fix incorrect thread no. output

	* tests/pthread3.c: Add deferred cancellation test.

2001-01-11  Nick Garnett  <[e-mail]>

	* src/pthread.cxx (pthread_testcancel): Added test for self !=
	NULL in case this gets called from a non-pthread.

2000-12-22  Jonathan Larmour  <[e-mail]>

	* src/pthread.cxx (pthread_measure_stack_usage): New function
	to measure stack usage.

	* include/pthread.h: Prototype it.

	* cdl/pthread.cdl: remove CYGNUM_POSIX_MAIN_DEFAULT_STACK_SIZE and
	instead implement CYGINT_LIBC_STARTUP_EXTERNAL_INVOKE_MAIN_POSSIBLE

	* src/pthread.cxx: Use stack size for main from libc_startup package
	to prevent confusion
	(cyg_posix_pthread_start): Likewise

2000-12-06  Jonathan Larmour  <[e-mail]>

	* src/signal.cxx: include unistd.h for _exit

2000-11-20  Nick Garnett  <[e-mail]>

	* src/signal.cxx (cyg_deliver_signals): Added else in code to
	handle SIG_DFL. Otherwise if the SA_SIGINFO bit is set we call the
	signal handler twice!

2000-11-07  Jonathan Larmour  <[e-mail]>

	* src/signal.cxx (cyg_posix_thread_siginit): Add extra thread
	argument so that threads can inherit parent's sigmask.

	* src/pthread.cxx (pthread_create): Call with parent thread

	* src/pprivate.h: Change cyg_posix_thread_siginit prototype to take
	parent thread argument

	* tests/signal1.c: Add more checking of sigwaits, and fix so that it's
	only called when the signal is masked. Check errno values too
	sometimes.

2000-11-02  Jonathan Larmour  <[e-mail]>

	* src/signal.cxx (sigtimedwait): return signal number on success,
	not 0
	(SIGNAL_RETURN_VALUE): New macro for returning from functions with
	valid non-zero returns
	(sigwaitinfo): Pass on sigtimedwait result with SIGNAL_RETURN_VALUE
	macro as it may return the signal number.

2000-11-01  Jonathan Larmour  <[e-mail]>

	* src/signal.cxx (sigtimedwait): Check for SIGALRMs as a special
	case when looping as it won't have been set pending if it was
	masked.
	(check_sigalarm): New function extracted from the posix signal ASR
	(sigalrm_action): Unconditionally wake up threads waiting in sigwait
	so that they can check for pending SIGALRMs even if they were
	masked.
	(cyg_deliver_signals): Handle SIG_DFL signals properly, and check
	for bad signal handlers.
	(cyg_posix_signal_start): Initialize default signal actions to SIG_DFL

2000-10-27  Jesper Skov  <[e-mail]>

	* tests/signal2.c (cause_illegal_access): Don't loop forever.

2000-10-16  Jonathan Larmour  <[e-mail]>

	* include/sigsetjmp.h (sigsetjmp): Various fixes to make portable
	across all HALs (by avoiding CYGARC_JMP_BUF_SIZE) and remove warnings.
	* src/signal.cxx (siglongjmp): Likewise

2000-10-12  Nick Garnett  <[e-mail]>

	* include/sigsetjmp.h: Added this header to define
	sigjmp_buf,sigsetjmp() and siglongjmp().

	* cdl/posix.cdl:
	Added support for providing sigsetjmp implementation and header.
	Added sigsetjmp test.

	* src/signal.cxx: Added siglongjmp().

	* tests/sigsetjmp.c: Added this test for sigsetjmp(), siglongjmp()
	functionality. This is also a test for longjmping out of signal
	handlers.

	* tests/signal2.c:
	Ifdeffed around cause_* functions to avoid compiler warnings when
	they are not needed.
	Changed CYG_TEST_NA() calls to CYG_TEST_INFO() and changed
	CYG_TEST_FINISH() to CYG_TEST_PASS_FINISH(). With the _NA's there,
	the first unsupported exception just terminates the program, and
	does not give any subsequent supported ones a chance to run.

2000-10-12  Jesper Skov  <[e-mail]>

	* tests/timer1.c (main): Fix exit check.

2000-10-11  Nick Garnett  <[e-mail]>

	* src/pthread.cxx: Fixed cyg_posix_pthread_release_thread() to
	work for _DETACHED threads as well as for _RUNNING ones. Also
	fixed a bug in test to decrement counter in this routine.

	* src/pprivate.h: Added note about retaining numerical order of
	PTHREAD_STATE_* defines.

	* tests/timer1.c: Fixed some bugs of the how-did-it-ever-work
	variety.

2000-10-05  Nick Garnett  <[e-mail]>

	* src/misc.cxx:
	Added a set of compatibility functions to aid portability and
	improve standards compliance.
	Added cyg_posix_function_[start|finish] to set up and terminate
	POSIX API functionality wrt signal and cancellation behaviour.
	(Lots more to do here).

	* include/export.h:
	Added this file to contain definitions that can be exported from
	the POSIX package to others.

	* src/pprivate.h: Added include of export.h
	
2000-09-11  Jonathan Larmour  <[e-mail]>

	* include/limits.h (OPEN_MAX): Don't define here - let FS infra do
	that.
	(LINK_MAX): Ditto
	(NAME_MAX): Ditto
	(PATH_MAX): Ditto

2000-09-04  Nick Garnett  <[e-mail]>

	* tests/pthread2.c: 
	* tests/pthread3.c:
	Fixed bug in calculation of thread stack addresses.

	* src/misc.cxx (sysconf): Change zero returns to -1 when a feature
	is not supported.

2000-08-08  Jonathan Larmour  <[e-mail]>

	* include/limits.h: Don't define SSIZE_MAX here, leave it to the
	isoinfra default.

2000-07-27  Jonathan Larmour  <[e-mail]>

	* tests/signal2.c: NA if no setjmp/longjmp

2000-07-26  Nick Garnett  <[e-mail]>

	* include/pthread.h:
	* src/pthread.cxx (pthread_testcancel): Reversed addition of cyg_
	to this symbol.

2000-07-25  Jonathan Larmour  <[e-mail]>

	* src/pthread.cxx: Define main_stack and main_thread as static
	Rename pthread_canceled -> cyg_pthread_canceled - pthread_ may be
	a reserved name space but this makes explicit it is implementation-
	and not standard-defined
	(PTHREAD_ENTRY_VOID): Define for funcs that take no args
	(pthread_testcancel): Call PTHREAD_ENTRY_VOID()

	* include/pthread.h: Rename pthread_canceled -> cyg_pthread_canceled

2000-07-20  Jonathan Larmour  <[e-mail]>

	* src/pthread.cxx: Use isoinfra to determine presence of malloc()
	Define pthread_malloc() and pthread_free() as inlines

	* cdl/posix.cdl: Shouldn't define _POSIX_MESSAGE_PASSING at all - that
	happens in isoinfra.

2000-07-20  Nick Garnett  <[e-mail]>

	* cdl/posix.cdl: Added misc.cxx to compile list. Added option to
	define _POSIX_MESSAGE_PASSING. Added configury for utsname
	structure.

	* include/utsname.h: Added this file to define struct utsname and
	uname() function prototype.

	* include/mqueue.h: Moved definition of _POSIX_MESSAGE_PASSING to
	CDL.

	* include/limits.h: Added NGROUPS_MAX definition.

	* src/pthread.cxx:
	Added support for malloced() thread stacks.
	Added implementations of pthread_mutex_setprioceiling() and
	pthread_mutex_getprioceiling().
	Changed implementations of pthread_mutex_destroy(),
	pthread_mutex_lock() and pthread_mutex_trylock() to conform more
	closely to the standard.
	Changed pthread_key_create() to assign NULL to all valid thread
	slots that correspond to a newly allocated key.

	* src/pprivate.h: Added freestack and stackmem members to manage
	malloced thread stacks.

	* src/misc.cxx: Added this file to contain functions that do not
	belong in any other files. Currently contains uname() and
	sysconf().

2000-07-19  Jonathan Larmour  <[e-mail]>

	* src/startup.cxx: Remove unnecessary includes
	Use dummy object constructor to do initialization

	* cdl/posix.cdl: 
	Don't need main.cxx any more
	Build startup.cxx into extras.o (via libextras.a)

	* cdl/pthread.cdl (CYGPKG_POSIX_MAIN_THREAD):
	Integrate with CYGPKG_LIBC_STARTUP - tell CYGPKG_LIBC_STARTUP to
	let pthreads set up main thread

	* src/pthread.cxx: Integrate with CYGPKG_LIBC_STARTUP rather than
	calling main() directly.
	Track number of threads waiting to be joined, so we can tell in
	pthread_exit() if this is the last thread, and therefore whether
	to call exit()

	* src/main.cxx: obsolete, removed

2000-07-13  Nick Garnett  <[e-mail]>

	* src/signal.cxx: Added ISO C compatibility functions signal() and
	raise().

2000-06-21  Nick Garnett  <[e-mail]>

	* src/pthread.cxx: Added for(;;) loop to end of pthread_exit().
	pthread_exit() is marked with the noreturn attribute, and without
	this some compilers generate a call to abort() here in case
	Cyg_Thread::exit() returns. The loop avoids this.

2000-06-06  Jonathan Larmour  <[e-mail]>

	* src/mqueue.cxx (mq_receive): Fix non-portable treatment of mode flags
	(mq_send):  Ditto
	* tests/mqueue2.c (main): Ditto

2000-05-24  Nick Garnett  <[e-mail]>

	* tests/pthread2.c: Added this program to test per-thread data
	handling.

	* tests/pthread3.c: Added this program to test execution of
	cancellation handler.

	* src/pthread.cxx: Fixed some bugs revealed by new test programs.

	* cdl/posix.cdl: Added two new pthread tests.

2000-05-22  Jonathan Larmour  <[e-mail]>

	* cdl/posix.cdl (CYGPKG_POSIX): Require
	CYGIMP_KERNEL_SCHED_SORTED_QUEUES

2000-05-20  Jonathan Larmour  <[e-mail]>

	* tests/mqueue1.c (cyg_user_start): Define correctly
	* tests/mqueue2.c (cyg_user_start): Likewise

	* src/pprivate.h (cyg_sigqueue): Make struct sigevent * arg const since
	it is, and it prevents warnings elsewhere
	* src/signal.cxx (cyg_sigqueue): ditto

	* tests/signal2.c: Use CYG_TEST_NA, not CYG_TEST_INFO (otherwise
	the test farm may fail the tests because there are no PASSes or NAs)

	* cdl/posix.cdl (CYGPKG_POSIX): We need errno and error codes, so
	require them
	Move some of the package implements into the components
	Add message queue configuration, build mqueue.cxx and the mqueue1 and
	mqueue2 tests
	Move some calculated options into isoinfra, implemented as interfaces
	so that unistd.h and limits.h can get the values

	* include/limits.h: Move _POSIX_* macros into isoinfra limits.h
	since they are implementation independent