src/winsup/cygwin ChangeLog autolo ...
Wed Jan 14 15:45:00 GMT 2004

CVSROOT:	/cvs/src
Module name:	src
Changes by:	2004-01-14 15:45:37

Modified files:
	winsup/cygwin  : ChangeLog 
	                 cygheap.h cygthread.h 
	                 dll_init.sgml dtable.h dtable.sgml 
	        select.h shared.sgml 
	                 stackdump.sgml sync.h 
	        thread.h tlsoffsets.h winsup.h 

Log message:
	* cygtls.h (_threadinfo::call): Remove regparm declaration to work around
	compiler bug.
	* (TryEnterCriticalSection): Remove.
	* (dll_crt0_0): Delete inappropriate setting of _my_tls.stackptr to
	NULL since it has really bad consequences.  Make 'si' an automatic variable.
	* (_threadinfo::init_thread): Correct thinko which caused thread list
	to be allocated every time.
	* cygtls.h (CYGTLS_PADSIZE): Define as const int.
	* sync.h: Make multiple inclusion safe.
	(muto::next): Eliminate.
	(muto::exiting_thread): New variable.
	(muto::set_exiting_thread): New function.
	(new_muto): Change to use different section for mutos since c++ give
	inexplicable warning in some cases otherwise.
	(new_muto1): Ditto.
	* (do_exit): Call muto::set_exiting_thread here.
	* (muto_start): Eliminate.
	(muto::acquire): Always give exiting thread a lock.  Never give thread a lock
	if exiting.
	(muto::release): Ditto for releasing.
	* (dtable::init_lock): Unline function and define here.
	* dtable.h (lock_cs): Define as a muto since critical sections seem to work
	oddly on Windows Me.
	(lock): Accommodate switch to muto.
	(unlock): Ditto.
	* (setup_handler): Don't worry about acquiring mutos since that
	hasn't mattered for a long time.
	(signal_exit): Ditto: muto stuff will be handled automatically on exit now.
	* (DLL_IMPORTS): Link advapi32 to ensure proper DLL initialization.
	* (RegCloseKey): Arbitrarily choose this function as a "seed" to
	pull the advapi32 link library in.  So, comment out the autoloading.
	* (_threadinfo::init_thread): Just clear CYGTLS_PADSIZE.
	(_threadinfo::remove): Add debugging.
	(_threadinfo::find_tls): Ditto.
	* cygtls.h (_threadinfo::padding): Make zero length (for now?).
	* (dll_crt0_0): Move more initialization here from dll_crt0_1.
	(dll_crt0_1): See above.
	* dtable.h (dtable::lock): Remove commented out critical section locking.
	* dtable.h (dtable::init_lock): Remove commented out critical section locking.
	* dtable.h (dtable::unlock): Remove commented out critical section locking.
	* (interruptible): bool'ize.
	* (threadfunc_fe): Revert to storing threadfunc at stack bottom.
	(munge_threadfunc): Ditto.  Avoid adding overhead to calibration_thread.
	(prime_threads): Don't initialize tls stuff.
	(dll_entry): Make minor change to initialization order.
	* tlsoffsets.h: Regenerate.
	* (wait_sig): Add sanity check for end of process thread exit.
	* select.h: Make minor formatting change.
	* Add still more -fomit-frame-pointer functions.
	* dtable.h (dtable::lock): New function.
	(dtable::unlock): New function.
	(dtable::init_lock): New function.
	* cygheap.h (HEAP_TLS): Declare new enum value.
	(init_cygheap::threadlist): Declare new array.
	(init_cygheap::sthreads): Declare new variable.
	(cygheap_fdmanip::~cygheap_fdmanip): Use new dtable lock/unlock functions.
	(cygheap_fdnew::cygheap_fdnew): Ditto.
	(cygheap_fdget::cygheap_fdget): Ditto.
	* (dtable_init): Initialize fdtab critical section.
	(dtable::fixup_after_fork): Ditto.
	(dtable::fixup_after_exec): Ditto.
	(dtable::dup2): Use lock/unlock calls to protect access to fdtab.
	(dtable::find_fifo): Ditto.
	(dtable::fixup_before_fork): Ditto.
	(dtable::fixup_before_exec): Ditto.
	(dtable::set_file_pointers_for_exec): Ditto.
	(dtable::vfork_child_dup): Ditto.
	(dtable::vfork_parent_restore): Ditto.
	* (close_all_files): Ditto.
	* sync.h (muto::acquired): Declare new function.
	(new_muto1): Declare new macro used to specify name of muto storage.
	* (muto::acquired): Define new function.
	* (cygthread::stub): Remove signal chain removal call since it is
	handled during initialization now.
	* (cygthread::simplestub): Remove signal chain removal call since
	it is handled during initialization now.
	* (sentry): New class used for locking.  Use throughout.
	(_threadinfo::reset_exception): Don't pop stack.
	(_threadinfo::find_tls): Move from
	(_threadinfo::init_thread): Initialize array of threads rather than linked
	list.  Take second argument indicating thread function for this thread.
	(_threadinfo::remove): Search thread array rather than linked list.  Use sentry
	to lock.  Only unlock if we got the lock.
	(_threadinfo::find_tls): Ditto for first two.
	(handle_threadlist_exception): Handle exceptions when manipulating the thread
	list in case of premature thread termination.
	(_threadinfo::init_threadlist_exceptions): Ditto.
	* cygtls.h (TLS_STACK_SIZE): Decrease size.
	(_threadinfo::padding): Add element to avoid overwriting lower part of stack.
	(_threadinfo::remove): Add a "wait" argument to control how long we wait for a
	lock before removing.
	* (init_exception_handler): Make global.  Take argument to
	control exception handler being set.
	(ctrl_c_handler): Wait forever when removing self from signal chain.
	(_threadinfo::find_tls): Move to
	(sig_handle): Reorganize detection for thread-specific signals.
	* (heap_init): Rework slightly.  Make fatal error more verbose.  Remove
	malloc initialization since it can't happen during dll attach.
	* (search_for): Move address to search for on stack here.
	(threadfunc_ix): Ditto for stack offset.  Make shared so that stack walk
	potentially only has to be done once when cygwin processes are running.
	(threadfunc_fe): Use standard tls to store thread function (may change back
	(calibration_thread): New function.  Potentially called to find threadfunc_ix.
	(munge_threadfunc): Search for "search_for" value on stack.  Output warning
	when thread func not found on stack.  Use standard tls to store thread
	(prime_threads): New function.  Called to prime thread front end.
	(dll_entry): Call dll_crt0_0 here when DLL_PROCESS_ATTACH.  Call prime_threads
	here.  Try to remove thread from signal list here.
	* (wait_sig): Initialize threadlist exception stuff here.
	* (pthread::exit): Pass argument to signal list remove function.
	* thread.h: Remove obsolete *ResourceLock defines.
	* tlsoffsets.h: Regenerate.
	* winsup.h (spf): Define temporary debug macro to be deleted later.
	* (dll_crt0_0): New function, called during DLL initialization.
	Mainly consists of code pulled from dll_crt0_1.
	(dll_crt0_1): See above.
	(_dll_crt0): Wait for initial calibration thread to complete, if appropriate.
	Move some stuff to dll_crt0_0.
	(initialize_main_tls): Accommodate argument change to
	* (fork_child): Ditto.
	(sync_with_child): Fix debug message.
	* (cygwin_internal): Remove special considerations for
	uninitialized dll since initialization happens during dll attach now.
	* (dlopen): Remove obsolete *ResourceLock calls.
	(dlclose): Ditto.
	* cygheap.h (init_cygheap::close_ctty): Declare new function.
	* (init_cygheap::close_ctty): Define new function.
	* (close_all_files): Use close_ctty.
	(setsid): Ditto.
	* (cygthread::stub): Remove exception initialization.
	* (cygthread::stub): Remove exception initialization.
	(cygthread::simplestub): Ditto.
	* (pthread::thread_init_wrapper): Ditto.
	* (_last_thread): Make static.
	(_threadinfo::call2): Initialize exception handler here.
	(_threadinfo::find_tls): Move here.
	* (_threadinfo::find_tls): Move.
	* (__api_fatal): Add prefix info to message here rather than including
	it in every call to function.
	* winsup.h (api_fatal): Accommodate above change.
	* (add_handle): Don't do anything if cygheap not around.
	(mark_closed): Ditto.
	* (dll_list::detach): Fix debug output.
	* (sync_with_child): Ditto.
	(vfork): Improve debug output.
	* (heap_init): Ditto.
	* (try_to_debug): Clarify message when debugger attaches.


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