Subversion Repositories openrisc

2003-03-03  Jonathan Larmour  

        * tests/signal2.c (cause_illegal_access): PowerPC only generates

        alignment exceptions in little-endian mode, so make that a special

        case.

        * tests/mutex3.c: Include POSIX headers before feature tests to

        prevent spurious CYG_TEST_NA.

2003-02-24  Jonathan Larmour  

        * doc/posix.sgml: Expunge EL/IX. Dead standard.

        * cdl/posix.cdl: Add doc link.

2003-02-13  Jonathan Larmour  

        * src/mutex.cxx: Include sched.hxx for scheduler lock/unlock primitives.

        Reported by Jani Monoses.

2003-02-10  Gary Thomas  

        * tests/signal3.c (main): Reorg code so it builds with older GCC.

2003-01-31  Nick Garnett  

        * src/time.cxx (alarm_action): Added call to

        cyg_posix_signal_sigwait() to wake up any sigwait()ing threads.

        * src/signal.cxx (cyg_posix_signal_sigwait): Added this function

        to export access to signal_sigwait conditional variable.

        (sigtimedwait): Added call to cyg_posix_timer_asr() to allow timer

        signals to be delivered here.

        * src/pprivate.h: Added prototype for cyg_posix_signal_sigwait().

        * cdl/posix.cdl:

        * tests/signal3.c: Added this program to test interaction of

        timers and signals, particularly sigwait(). Based on a test

        program from N.Suresh .

2003-01-20  Jonathan Larmour  

        * src/signal.cxx (cyg_posix_deliver_signals): silence warning.

        * src/time.cxx (cyg_timespec_to_ticks): Remove use of default arg in

        definition.

2003-01-18  Jonathan Larmour  

        * src/mqueue.cxx: Fix multi-line string literal warning.

2003-01-13  Jonathan Larmour  

        * doc/posix.sgml: Document them.

        * src/mqueue.cxx (mq_timedreceive): Make fully compliant by dealing

        with bogus timeouts.

        (mq_timedsend): Ditto.

2003-01-13  Dmitriy Korovkin  

        * src/mqueue.cxx (mq_timedsend): New function. Implementing POSIX

        1003.1d draft definition.

        (mq_timedreceive): Ditto.

2002-12-10  Wade Jensen  

2002-12-10  Jonathan Larmour  

        * src/mutex.cxx (pthread_cond_timedwait): Initialize clock converters

        only once ever.

2002-11-26  Nick Garnett  

        * src/signal.cxx: Changed the three routines added in the last

        change so that they can be called safely from non-POSIX threads.

2002-11-10  Nick Garnett  

        * src/signal.cxx: Added three exportable routines that may be used

        by other packages to manipulate the signal mask, test for

        deliverable signals, and have signals delivered at controlled

        points.

        * include/export.h: Added macros to export signal mask management,

        detection and delivery to other packages.

2002-11-05  Jonathan Larmour  

        * tests/tm_basic.cxx: Use  for diag_printf

        prototype.

2002-05-23  Jesper Skov  

        * cdl/posix.cdl: Don't build tests using signals when posix

        signals are disabled.

2002-05-21  Jesper Skov  

        * tests/mutex3.c: Added an NA check.

2002-04-09  Jonathan Larmour  

        * src/signal.cxx (cyg_deliver_signals): Don't assert here for an

        unhandled signal (unless there's no _exit). Trace it though.

2002-04-08  Jonathan Larmour  

        * src/sem.cxx (sem_getvalue): return 0, and put value in *sval.

2002-04-03  Jonathan Larmour  

        * cdl/posix.cdl: Allow clocks to be configured again.

2002-03-05  Jesper Skov  

        * src/pprivate.h: Correct conditional declaration of timespec

        functions.

        * src/sched.cxx (sched_rr_get_interval): Return ENOSYS when

        CYGPKG_POSIX_CLOCKS disabled.

2002-02-27  Robin Farine  

        * src/pthread.cxx (pthread_exit): While running thread static

        storage destructors, set the thread's value associated with the

        current key to NULL before invoking the destructor.

2002-02-14  Nick Garnett  

        * doc/posix.sgml: Generally fixed up and reformatted to make this

        file readable by mere humans. Some omissions and outdated

        information fixed, but not substantially changed from the

        original.

        * cdl/posix.cdl: Changed some definitions and dependencies so that

        disabling the timers does not disable threads too. This was

        largely a consequence of trying to document the behaviour of these

        options.

2002-02-14  Jonathan Larmour  

        * doc/posix.sgml: New file, originally accompanied by this ChangeLog:

        2001-12-22  Jonathan Larmour  

                * ecos-elix.sgml: Do a minor cleanup of the function prototype

                layouts.

                Should be done better than this, but this is at least not

                _completely_ wrong any more.

                Also several more layout problems due to incorrect tags fixed.

        2001-12-07  Jonathan Larmour  

                * ecos-elix.sgml: Add getcwd as supported now.

        2001-12-06  Jonathan Larmour  

                * ecos-elix.sgml: Created from old framemaker version.

2002-01-21  Jonathan Larmour  

        * src/sched.cxx (sched_get_priority_min): Don't allow idle thread

        priority as a valid priority.

        Case #106952.

2001-12-11  Nick Garnett  

        * tests/mqueue2.c (cyg_user_start): Added CYG_TEST_INIT() to

        NOTAPPLICABLE variant, otherwise the order of breakpoints are all

        wrong and the testfarm registers a failure.

2001-11-06  Gary Thomas  

        * include/muttypes.h: Need  configuration info,

        otherwise structures defined here could have the wrong size.

2001-10-25  I-Jui Sung 

        * src/mqueue.cxx (do_mq_unlink): Nullify table entries' mq as this

        is used by mq_open to see if the entry is used.

2001-10-11  Jesper Skov  

        * tests/mutex3.c: Fixed warning.

        (new_thread): Fixed allocation: increase counter

        before starting threads which have been allocated resources.

        * tests/signal2.c (cause_illegal_access): Fix warning.

2001-10-10  Jesper Skov  

        * cdl/posix.cdl: Only build sem.cxx when the semaphores component

        is enabled.

2001-10-09  Jonathan Larmour  

        * src/pprivate.h (pthread_info): Conditionalize signal specific

        members. Conditionalize declaration of

        cyg_posix_pthread_release_thread().

        * cdl/posix.cdl (CYGPKG_POSIX_CLOCKS): new option to separately

        configure posix clocks from timers.

        (CYGPKG_POSIX_TIMERS): require clocks and signals.

        * include/time.h: Make proper ISO C. Conditionalize on

        CYGPKG_POSIX_TIMERS correctly wrt the above change.

        * src/pthread.cxx (posix_asr): Call signal and timer subsystems

        conditionally.

        * src/pthread.cxx (pthread_reap): Don't destroy signal handling

        fields if there is no signal handling subsystem.

        (cyg_posix_pthread_release_thread): Conditionalize on signals.

        (pthread_create): Init signal subsys conditionally.

        * src/signal.cxx (sleep): Move to...

        * src/time.cxx: ...here.

        Conditionalize throughout depending on whether it's POSIX clocks

        or more specifically POSIX timers.

        (nanosleep): Use PTHREAD_TESTCANCEL() not pthread_testcancel().

        Get current thread from kernel not pthreads to remove pthread

        dependency.

2001-10-09  Jesper Skov  

        * tests/signal2.c: Also do NA check for signals.

2001-10-01  Jonathan Larmour  

        * src/mqueue.cxx (mq_open): Conditionalize use of sigev correctly.

        (mq_close): Similarly.

2001-09-28  Jonathan Larmour  

        * cdl/pthread.cdl (CYGNUM_POSIX_MAIN_DEFAULT_PRIORITY): Clarify

        POSIX thread priority description.

2001-09-28  Jesper Skov  

        * cdl/pthread.cdl: Changed default priority of POSIX main to

        16. This allows service threads (such as DHCP thread) to run when

        started from main().

2001-09-10  Jonathan Larmour  

        * include/pthread.h: Separate mutex and condvar API into separate

        header file to fix configury problems.

        * include/mutex.h: New file for the above.

        * cdl/posix.cdl: provide the correct configury for the isoinfra

        package to include the above file.

        * cdl/pthread.cdl: Move _POSIX_PTHREAD_PRIO_INHERIT and

        _POSIX_THREAD_PRIO_PROTECT to cdl/posix.cdl.

2001-09-07  Jonathan Larmour  

        * src/sem.cxx (sem_trywait): Actually use the return value.

        * src/sched.cxx (sched_get_priority_max): Use MAX not MIN

        (sched_get_priority_min): Use MIN not MAX.

2001-09-06  Jesper Skov  

        * cdl/posix.cdl: Moved signal implements statements to the

        CYGPKG_POSIX_SIGNALS component.

2001-08-06  Jonathan Larmour  

        * cdl/posix.cdl: Reorganize dependencies so that signals, timers

        and pthreads really can be disabled, and the relevant files don't

        get built.

        Build new mutex.cxx file.

        Remove duplicate CYGPKG_POSIX_SCHED dependency for pthreads.

        * include/limits.h: Don't include irrelevant header dependencies.

        * include/muttypes.h: New type defining mutex/cond var types separately

        from other pthread types.

        * include/types.h: Remove mutex/cond var types.

        * include/signal.h: Conditionalize on CYGPKG_POSIX_SIGNALS

        * include/sigsetjmp.h: Don't include irrelevant header dependencies.

        Rewrite sigsetjmp in a much more compiler friendly (and readable)

        way with less type punning.

        * src/misc.cxx: Don't include sysconf cases when pthreads or

        CYGPKG_POSIX_TIMERS not enabled.

        * src/mutex.cxx: New file, broken out of pthreads.cxx, as most

        of it is not fixed to the pthreads implementation, and I've fixed

        the bits that were too tied to it.

        * src/pprivate.h: Conditionalize definitions that are specific

        to CYGPKG_POSIX_PTHREAD. Ditto for prototypes for CYGPKG_POSIX_SIGNALS

        and CYGPKG_POSIX_TIMERS. Move PTHREAD_ENTRY/RETURN etc. macros

        here so they can be used throughout the package.

        * src/pthread.cxx: Remove mutex/cond var implementation, and

        entry/return macros, as per above.

        * src/signal.cxx (cyg_sigqueue): Don't just set non-queueable signals

        pending - also forcibly wake up any blocked threads.

        (siglongjmp): Use new layout of sigjmp_buf.

        * tests/mutex3.c:

        * tests/pthread1.c:

        * tests/pthread2.c:

        * tests/pthread3.c:

        * tests/signal1.c:

        * tests/sigsetjmp.c:

        * tests/timer1.c:

        * tests/tm_basic.cxx:

        Correct configuration dependencies, and do NA appropriately.

2001-08-03  Nick Garnett  

        Imported from a development branch:

        2001-06-27  Nick Garnett  

                * tests/pthread3.c:

                Modified the loop that waits for the threads to get going so that

                it will function correctly in an SMP system, where the threads

                will run in parallel.

                * tests/mutex3.c: Disabled this test for SMP systems. It depends

                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  

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

                compiler.

2001-06-14  Jonathan Larmour  

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

        size assertion.

2001-06-12  Jonathan Larmour  

        * src/pthread.cxx (MAIN_DEFAULT_STACK_SIZE): Define to use at

        least PTHREAD_STACK_MIN for main_stack.

2001-05-01  Nick Garnett  

        [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  

        * tests/tm_basic.cxx:

        This test is now functional on the synthetic target.

2001-04-20  Jonathan Larmour  

        * 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  

        * src/time.cxx (cyg_ticks_to_timespec): Clock convertors round off,

        so adjust timespec accordingly.

2001-02-14  Jonathan Larmour  

        * 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  

        * 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  

        * src/pthread.cxx (pthread_testcancel): Added test for self !=

        NULL in case this gets called from a non-pthread.

2000-12-22  Jonathan Larmour  

        * 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  

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

2000-11-20  Nick Garnett  

        * 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  

        * 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  

        * 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  

        * 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  

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

2000-10-16  Jonathan Larmour  

        * 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  

        * 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  

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

2000-10-11  Nick Garnett  

        * 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  

        * 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  

        * 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  

        * 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  

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

        isoinfra default.

2000-07-27  Jonathan Larmour  

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

2000-07-26  Nick Garnett  

        * include/pthread.h:

        * src/pthread.cxx (pthread_testcancel): Reversed addition of cyg_

        to this symbol.

2000-07-25  Jonathan Larmour  

        * 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  

        * 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  

        * 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  

        * 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  

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

        raise().

2000-06-21  Nick Garnett  

        * 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  

        * 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  

        * 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  

        * cdl/posix.cdl (CYGPKG_POSIX): Require

        CYGIMP_KERNEL_SCHED_SORTED_QUEUES

2000-05-20  Jonathan Larmour  

        * 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

        * src/mqueue.cxx: Add POSIX message queue implementation

        * tests/mqueue1.c, tests/mqueue2.c: and tests

2000-05-18  Nick Garnett  

        * src/pprivate.h:

        * src/pthread.cxx:

        * src/signal.cxx:

        * src/time.cxx:

        Added prioritization of static kernel objects.

2000-05-17  Nick Garnett  

        * src/pthread.cxx:

        To reduce the static memory required by this code, the

        pthread_info structure for a pthread is now allocated in the stack

        memory for that thread, and not in a static table. The table is

        now just an array of pointers. The per-thread data array is now

        also allocated onto the stack only when first required.

        * include/pthread.h: Removed some redundant code.

        * include/limits.h: Added PTHREAD_STACK_OVERHEAD to record

        management overhead imposed on POSIX threads stacks. This is added

        to the HAL minimum requirement to generate PTHREAD_STACK_MIN.

        * src/pprivate.h (pthread_info):

        * include/types.h (pthread_attr_t): Converted a number of integer

        state and boolean fields to bitfields.

        * cdl/pthread.cdl:

        Added requirement for CYGFUN_KERNEL_THREADS_STACK_LIMIT.

2000-05-16  Nick Garnett  

        * include/types.h: Added stacksize_valid to pthread_attr_t

        structure.

        * include/signal.h:

        Added SI_EXCEPT to mark any signals that were caused by an

        exception. Removed conditions around SIGBUS.

        * src/startup.cxx (cyg_posix_start):

        Added call to cyg_posix_exception_start().

        * src/signal.cxx:

        Rearranged cyg_deliver_signals() so that it is possible to

        longjmp() out of a signal handler without leaving signal handling

        code in an inconsistent state.

        Added handling of SIG_IGN in sigaction().

        * src/pthread.cxx: Added setting and checking of stacksize_valid.

        * src/pprivate.h: Added cyg_deliver_signals() as an export of

        signal system. Added exports from except.cxx.

        * src/except.cxx: Added this file to handle delivery of exceptions

        into the POSIX signal mechanism.

        * cdl/posix.cdl: Added except.cxx to compile list, added signal2

        to tests. Added requirement on kernel exception processing.

        * tests/tm_basic.cxx: Tidied up a compilation warning.

        * tests/signal2.c: Added this test for exception signal generation.

        * tests/mutex3.c: Fixed stupid bug.

2000-05-10  Nick Garnett  

        * src/pprivate.h: Added cyg_posix_clock_start() prototype.

        * src/startup.cxx: Added call to cyg_posix_clock_start().

        * src/time.cxx: Added startup routine to initialize

        converters. Fixed error result bug in timer_delete().

        * include/signal.h: Removed some configuration tests which are now

        done in CDL.

        * cdl/posix.cdl: Added configury for the signals component. Added

        tm_basic to tests.

        * tests/tm_basic.cxx:

        Added this POSIXized version of the tm_basic test. Note that this

        has not been entirely converted. While the code being tested is

        POSIX, the timing infrastructure remains a mish-mash of kernel,

        KAPI and HAL code.

2000-05-04  Nick Garnett  

        * src/time.cxx:

        Many changes to implement the delivery of signals on timer expiry.

        Also added timer_delete().

        * src/signal.cxx:

        cyg_sigqueue() and cyg_deliver_signals() may now only be called

        from within the context of a POSIX thread, either from an API call

        or an ASR.

        cyg_deliver_signals() can now cope with a signal that has

        SA_SIGINFO set but no signals queued. It also determines

        dynamically whether to lock the signal_mutex.

        cyg_deliver_signals() is no longer called implicitly from

        cyg_sigqueue() - so a number of expicit calls have been added.

        * src/sched.cxx:

        Added this file to implement scheduling API.

        * src/pthread.cxx:

        Moved priority translation macros to pprivate.h.

        Removed errno handling, now done in isoinfra package.

        Added iterative calls to per-thread data destructors.

        * src/pprivate.h:

        Removed error field from pthread_info structure.

        Moved priority translation macros here.

        Removed prototype for cyg_deliver_signals().

        Added prototype for cyg_posix_timer_asr().

        * include/time.h: Added timer_delete() which was mysteriously

        omitted.

        * cdl/posix.cdl: Added sched.cxx to compile list and timer1.c to

        tests.

        * tests/signal1.c:

        * tests/pthread1.c:

        Fixed bug in use of stack sizes.

        * tests/timer1.c:

        Added test for use of timers.

2000-05-02  Jonathan Larmour  

        * include/sched.h: No longer needed - just use the default definition

        in isoinfra

        * include/errno.h: No longer needed - errno provision now comes from

        CYGPKG_ERROR

        * include/sys/types.h: Moved to include/types.h

        * cdl/posix.cdl, cdl/pthread.cdl: Put include files in cyg/posix, and

        configure CYGPKG_ISOINFRA to include the appropriate headers

        * include/semaphore.h: Don't need to check kernel - including

        pkgconf/kernel.h would already fail

        Give SEM_FAILED a type so casting behaves in C++

        * include/signal.h: This uses pid_t etc., so include 

        Add signal() and raise() prototypes (to allow libc compilation, even

        though they aren't implemented yet)

        * include/time.h: Remove unnecessary includes. Move clockid_t and

        timer_t definitions here from sys/types.h since this is where the

        standard says they must live.

        * src/pprivate.h: Include signal.h and limits.h since their contents

        are used later in the file.

2000-04-28  Nick Garnett  

        * src/signal.cxx:

        Added implementations of alarm(), pause() and sleep().

        Modified cyg_sigqueue() so that it could be called from an ASR.

        Added cyg_posix_signal_asr() to do signal processing in ASRs.

        Miscellaneous bug fixes.

        * src/pthread.cxx:

        Added pthread_count to count number of threads created.

        Added call to signal ASR function in main ASR.

        Added cyg_posix_pthread_release_thread() to seek out and kick a

        thread to which a given set of signals may be delivered.

        * src/pprivate.h:

        Added some more functions that are shared between POSIX

        subsystems.

        * include/signal.h:

        Added alarm(), pause() and sleep() prototypes.

        * tests/signal1.c: Added this test for various aspects of signal

        handling.

        * cdl/posix.cdl: Added signal1 test.

2000-04-20  Nick Garnett  

        * src/signal.cxx: Added this file to contain signal handling code.

        * src/time.cxx: Made tick<->timespec converters exported to

        rest of POSIX subsystem. Enabled interface to signal mechanism for

        notifying timer expiration.

        * src/pthread.cxx:

        Made pthread_mutex exported to rest of POSIX subsystem.

        Exported pthread_info_id().

        Added thread init and destroy functions for signal subsystem.

        * src/startup.cxx: Added call to cyg_posix_signal_start().

        * src/pprivate.h: Added signal handling fields support to

        pthread_info structure. Added extra internal interfaces to support

        signal handling code.

        * include/signal.h: Added _how_ argument values for the sigmask

        functions.

        * cdl/posix.cdl: Added signal.cxx to compile list.

2000-04-13  Nick Garnett  

        * include/time.h:

        * src/time.cxx:

        Added implementation of clock and timer functions. These are

        currently untested since they need working signals.

2000-04-12  Nick Garnett  

        * src/pprivate.h: Added cancellation support fields to

        pthread_info structure. Made pthread_self_info() exported.

        * include/semaphore.h: Added SEM_FAILED plus misc. tidies.