newlib-cygwin/winsup/cygwin/ChangeLog

2013-03-09  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* cygtls.h (_cygtls::signal_debugger): Change argument type.
	(_cygtls::copy_context): Delete declaration.
	* exceptions.cc (exception::handle): Don't call copy_context() here.
	Move signal_handler call earlier and always call it.  
	(_cygtls::copy_context): Delete definition.
	(_cygtls::signal_debugger): Move copy_context logic here.  Suspend
	thread receiving signal before gathering context information.

2013-03-08  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* spawn.cc (child_info_spawn::worker): Save and restore my_wr_proc_pipe
	around non-execing operations to avoid handle leak seen in
	http://cygwin.com/ml/cygwin/2013-03/msg00152.html .

2013-03-07  Corinna Vinschen  <corinna@vinschen.de>

	* include/sys/un.h (UNIX_PATH_MAX): Rename from UNIX_PATH_LEN to
	follow Linux.
	* fhandler_socket.cc: Change UNIX_PATH_LEN to UNIX_PATH_MAX throughout.
	(fhandler_socket::recv_internal): Don't return prematurely in case of
	successful return.  For AF_LOCAL sockets, overwrite returned AF_INET
	name with AF_LOCAL name.

2013-03-07  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::bind): Fix check for AF_LOCAL
	filename length to allow non-NUL terminated strings within namelen
	bytes.  Copy over sun_path to local array sun_path to have a
	NUL-terminated string for subsequent function calls.  Move path_conv
	check before OS bind call to not bind the socket before being sure
	the file doesn't exist.  Add and fix comments.

2013-03-06  Corinna Vinschen  <corinna@vinschen.de>

	* mount.cc (fs_names): Add trailing NULL element to avoid potential
	SEGV in format_proc_filesystems.

2013-03-01  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* exceptions.cc (exception::handle): Eliminate buggy recursed variable;
	just check if we're exiting.

2013-02-26  Corinna Vinschen  <corinna@vinschen.de>

	* include/pthread.h (pthread_atfork): Add missing declaration.

2013-02-20  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>

	* include/error.h (error_message_count): Declare as dllimport.
	(error_one_per_line): Ditto.
	(error_print_progname): Ditto.

2013-02-08  Corinna Vinschen  <corinna@vinschen.de>

	* child_info.h (CURR_CHILD_INFO_MAGIC): Update.
	(class child_info_fork): Drop extraneous semicolon.

2013-02-04  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::bind): Fix error code for
	empty filename.

2013-02-04  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::bind): Fix length check of
	AF_LOCAL filename so it never accesses memory beyond namelen.  Also
	make sure filename is NUL-terminated.

2013-01-31  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* DevNotes: Add entry cgf-000022.
	* cygtls.h (_cygtls::func): Define as a sa_sigaction style function.
	* exceptions.cc (sig_handle_tty_stop): Ditto.
	(_cygtls::interrupt_setup): Fix coercion to accommodate 'func' change.
	(ctrl_c_handler): Use tty kill_pgrp to send a signal.
	(sigpacket::process): Don't process sigflush here.
	(_cygtls::call_signal_handler): Reorganize to avoid a race.  Always
	call sa_sigaction style function.
	* fhandler_termios.cc (is_flush_sig): Define new function.
	(tty_min::kill_pgrp): Handle tty flush when signal detected.
	(fhandler_termios::bg_check): Be slightly more paranoid about checking
	for valid tty.
	(fhandler_termios::sigflush): Don't flush unless tty owner.
	* fhandler_tty.cc (fhandler_pty_slave::ioctl): Use tty kill_pgrp to
	send signal.
	(fhandler_pty_master::ioctl): Ditto.
	* signal.cc (killsys): Delete definition.
	* sigproc.h (killsys): Delete declaration.
	* include/cygwin/signal.h (siginfo_t): Simplify union/struct nesting
	slightly.  Implement mechanism to allow cygwin data passing.

2013-01-23  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* miscfuncs.cc (__import_address): Check if malloc field points
	directly at 'malloc'.

2013-01-23  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* miscfuncs.cc (__import_address): On second thought, the chance that
	this pointer could be NULL is very low so don't bother checking for it.

2013-01-23  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* exceptions.cc (exception::handle): Make attempt to recursively dump
	stack fatal.

2013-01-22  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* miscfuncs.cc (__import_address): Avoid NULL explicitly.

2013-01-22  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* miscfuncs.cc (__import_address): Avoid treating random instructions
	as import jump.
	* malloc_wrapper.cc (malloc_init): Remove comment about 64-bit.

2013-01-21  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* dcrt0.cc (dll_crt0_1): Comment assumption.
	* exceptions.cc (sigpacket::setup_handler): Avoid sending signals
	during fork processing.

2013-01-21  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* dcrt0.cc (dll_crt0_1): Flag that we are working "incyg".  Handle any
	signals (presumably exiting signals) which may have come in while we
	are in the process of setting up.

2013-01-21  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* update-copyright: Recognize configure.ac scripts too.

2013-01-21  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* cygerrno.h (__reg3): Define.
	* cygmalloc.h (__reg3): Ditto.

2013-01-21  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* cygerrno.h: Conditionally define __regN for cygserver.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* malloc_wrapper.cc (malloc_init): Re-add inadvertently dropped comment
	which explains what's going on with the use_internal calculation.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	Throughout, update copyrights to reflect dates which correspond to
	main-branch checkins.  Regularize copyright format.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	Throughout, change __attribute__ ((regparm (N))) to just __regN.
	Throughout, (mainly in fhandler*) start fixing gcc 4.7.2 mismatch
	between regparm definitions and declarations.
	* gendef: Define some functions to take @ declaration to accommodate
	_regN defines which use __stdcall.
	* gentls_offsets: Define __regN macros as empty.
	* autoload.cc (wsock_init): Remove unneeded regparm attribute.
	* winsup.h (__reg1): Define.
	(__reg2): Define.
	(__reg3): Define.

	* advapi32.cc (DuplicateTokenEx): Coerce some initializers to avoid
	warnings from gcc 4.7.2.
	* exceptions.cc (status_info): Declare struct to use NTSTATUS.
	(cygwin_exception::dump_exception): Coerce e->ExceptionCode to
	NTSTATUS.
	* fhandler_clipboard.cc (cygnativeformat): Redefine as UINT to avoid
	gcc 4.7.2 warnings.
	(fhandler_dev_clipboard::read): Ditto.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* update-copyright (update_maybe): Accommodate perl-style copyright
	comments.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* update-copyright: Silently skip nonexistent files.  Display filename
	on update.  Don't update non-Red Hat copyrights.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* update-copyright: Update standard copyright information based on cvs
	log and current sandbox status.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* malloc_wrapper.cc: Change 'use_internal_malloc' to 'use_internal'
	throughout.
	(export_malloc_called): Delete.
	(internal_malloc_determined): New variable.
	(malloc_init): Control calculation of internal/external malloc based on
	'internal_malloc_determined'.  Use import_address() to determine if
	malloc in user_data is ours or not.
	* miscfuncs.cc (thread_wrapper): Make static.
	(__import_address): Define new function.
	* miscfuncs.h (import_address): New define.
	(__import_address): Declare new function.

2013-01-20  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* sigproc.cc (sig_dispatch_pending): Add correct regparm attributes to
	match declaration.
	(pid_exists): Ditto.
	(proc_subproc): Ditto.
	(sig_clear): Ditto.
	(sig_send): Ditto.
	(checkstate): Ditto.

2013-01-19  Corinna Vinschen  <corinna@vinschen.de>

	* syscalls.cc (rename): Remove ill-conceived NFS workaround from
	2013-01-10 for self-inflicted NFS server problem.

2013-01-19  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* exceptions.cc (ctrl_c_handler): Remove special-case handler for
	"cygwin_finished_initializing".
	* sigproc.cc (exit_thread): Undefine ExitThread earlier to avoid
	recursion on error return.

2013-01-18  Corinna Vinschen  <corinna@vinschen.de>

	* errno.cc (errmap): Map ERROR_LOCK_VIOLATION to EBUSY.

2013-01-18  Corinna Vinschen  <corinna@vinschen.de>

	* mmap.cc (handler_disk_file::msync): Add call to FlushFileBuffers
	to implement MS_SYNC.

2013-01-17  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* mmap.cc (handler_disk_file::msync): Retry up to 99 times if
	FlushViewOFile fails with ERROR_LOCK_VIOLATION.

2013-01-16  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* sigproc.cc (no_signals_available): Finally remove this macro
	entirely.
	(exit_thread): Ensure process lock is released on error exit.
	(sig_send): Simplify "its_me" test.  Remove no_signals_available tests.

2013-01-16  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* pthread.cc (pthread_exit): Add kludge to accommodate noreturn attribute.

2013-01-14  Antti Kantee  <pooka@iki.fi>

	* include/pthread.h (pthread_exit): Mark as "noreturn".

2013-01-14  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* exceptions.cc (signal_exit): Move captive process termination...
	(_cygtls::interrupt_setup): ...into here.
	(sigpacket::process): Simplify setting of handler when have_execed.
	(_cygtls::interrupt_setup): Don't call proc_subproc when we've execed.
	* globals.cc (exit_states): Delete unneeded ES_EXEC_EXIT.
	* pinfo.cc (pinfo::exit): Change debugging output.  Call proc_terminate
	rather than the now-obsolete sigproc_terminate.  Don't set exit_state
	to ES_EXEC_EXIT.  Set exit_state to ES_FINAL later.
	* sigproc.cc (sigproc_terminate): Delete function.
	(wait_sig): Don't call proc_subproc if have_execed.
	* sigproc.h (sigproc_terminate): Delete declaration.
	* sync.h (lock_process::lock_process): Don't set exit_state to
	ES_PROCESS_LOCKED.
	(lock_process::operator LONG): Define.

2013-01-11  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* DevNotes: Add entry cgf-000021.
	* select.cc (select): Unconditionally return when a signal is detected.
	(select_stuff::wait): Ditto.

2013-01-11  Corinna Vinschen  <corinna@vinschen.de>

	* syscalls.cc (rename): Drop handling paths > 32757 chars, emit EINVAL
	instead, thus simplifying code allocating and filling pfri.  Drop size
	and use constant expression in NtSetInformationFile call.  Add comments.
	Drop redundant test for fs_serial_number and change comment accordingly.

2013-01-11  Thomas Wolff  <towo@towo.net>

	* fhandler.h (class dev_console): Flag for expanded control sequence.
	* fhandler_console.cc (char_command): Supporting cursor style modes.

2013-01-10  Corinna Vinschen  <corinna@vinschen.de>

	* path.h (path_conv::fs_type): New method.
	* syscalls.cc (rename): Check for cross-device situation before
	touching anything.  Explain why.  Workaround NFS bug in call to
	NtSetInformationFile(FileRenameInformation).

2013-01-09  Corinna Vinschen  <corinna@vinschen.de>

	* cygerrno.h: Fix copyright.
	* exceptions.cc: Drop comment explaining removed variable.

2013-01-09  Corinna Vinschen  <corinna@vinschen.de>

	* dcrt0.cc (main_thread_sinit): New inline function.  Fix and explain
	a stdio initialization issue.
	(dll_crt0_1): Call main_thread_sinit rather than __sinit.

2013-01-07  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* thread.cc (pthread_rwlock::lookup_reader): Remove parameter: always
	assume that we're looking for the current thread.
	(pthread_rwlock::tryrdlock): Eliminate self variable.  Accommodate
	change in lookup_reader().
	(pthread_rwlock::unlock): Ditto.
	(pthread_rwlock::rdlock): Ditto.  Move add_reader call after writer
	tests to more closely mimic old behavior.
	(pthread_rwlock::wrlock): Accommodate change in lookup_reader().
	* thread.h ((pthread_rwlock::lookup_reader): Eliminate argument.

2013-01-07  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* thread.cc (pthread_rwlock::add_reader): Perform new operation here
	and return pointer to allocated RWLOCK_READER structure.
	(pthread_rwlock::rdlock): Reorganize to reflect new add_reader
	functionality.
	(pthread_rwlock::tryrdlock): Ditto.  Remove unneeded call to
	lookup_reader().
	* thread.h (pthread_rwlock::RWLOCK_READER::RWLOCK_READER): New
	constructor.
	(pthread_rwlock::add_reader): Reflect new functionality.

2013-01-03  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* globals.cc (exit_states): Renumber so that ES_EXIT_STARTING is first,
	as intended.
	* sigproc.cc (wait_sig): Only stop accepting signals after
	exit_state > ES_EXIT_STARTING.

2013-01-03  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* sigproc.cc (exit_thread): Set thread signal mask so that no signals
	are sent to an exiting thread.

2013-01-02  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* sigproc.cc (no_signals_available): Remove exit_state test since
	signals are available in a limited fashion when exiting.
	(sig_dispatch_pending): Ditto.
	(sig_send): Ditto.
	(exit_thread): Rearrange to avoid an unnecessary DuplicateProcess when
	exiting.
	(wait_sig): Allow special signals when exiting.

2013-01-02  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* DevNotes: Add entry cgf-000020, relating to previous checkin.

2013-01-02  Christopher Faylor  <me.cygwin2013@cgf.cx>

	* cygtls.h (_cygtls::signal_exit): Delete from class.
	* exception.h (cygwin_exception): New class.
	(cygwin_exception::dumpstack): Declare new function.
	(cygwin_exception::context): Ditto.
	(cygwin_exception::dump_exception): Ditto.
	* exceptions.cc (cygwin_exception::dump_exception): Move into
	cygwin_exception class.  Accommodate new variable names.
	(cygwin_exception::dumpstack): Ditto stackdump -> dumpstack.
	(exception::handle): Move andreas processing earlier.  Defer signal
	processing decisions to the signal thread where they belong.  Pass
	exception information to sig_send via new siginfo_t si_cyg field.
	(ctrl_c_handler): Wait for SIGHUP signal to be processed since it could
	cause a process exit and we don't want races with thread exit lock.
	(signal_exit): Move back here from sigproc.cc.  Modify arguments and
	remove from sigpacket class.  Decide when to dump core based on signal
	type.
	(sigpacket::process): Handle exiting signals in context of threads
	rather than in the signal thread.  Signal debugger on non-Windows
	signals.  Remove setup_signal_exit call.
	* sigproc.cc (no_signals_available): Remove argument.
	(signal_exit_code): Delete.
	(close_my_readsig): Ditto.
	(_cygtls::signal_exit): Move to exceptions.cc.
	(sigproc_terminate): Don't attempt to terminate signal thread.
	(setup_signal_exit): Delete.
	(exit_thread): Use new si_cyg entry in siginfo_t.
	(sig_send): Just use empty initializer for si.  Accommodate change in
	no_signals_available argument.
	(wait_sig): Remove attempt to "go asynchronous" on process exit.
	Delete __SIGEXIT handling.  Don't ever exit.
	* sigproc.h: Remove __SIGEXIT from signal enum.  Renumber.
	* include/cygwin/signal.h (siginfo_t): Add si_cyg entry.