changelog

eCos/RedBoot for勤研ARM AnywhereII(4510) 含全部源代码

		too much on predicting the priority-driven execution order of the
		threads. In an SMP system, some threads will run in parallel and
		falsify the assumptions.

	2001-05-25  Nick Garnett  <[e-mail]>

		* src/signal.cxx (siglongjmp): Minor change to satisfy latest C++
		compiler.

2001-06-14  Jonathan Larmour  <[e-mail]>

	* src/pthread.cxx (pthread_attr_setstacksize): Correct stack
	size assertion.

2001-06-12  Jonathan Larmour  <[e-mail]>

	* src/pthread.cxx (MAIN_DEFAULT_STACK_SIZE): Define to use at
	least PTHREAD_STACK_MIN for main_stack.

2001-05-01  Nick Garnett  <[e-mail]>

	[x86 branch]
	* tests/signal2.c (cause_illegal_access): Added code for I386
	architecture to provoke General Protection Fault. 

	* 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)