Commit Graph

300 Commits

Author SHA1 Message Date
Corinna Vinschen aaee2ffaed * exceptions.cc (dummy_ctrl_c_handler): Remove.
(init_console_handler): Drop has_null_console_handler_routine checks.
	* fhandler_raw.cc (fhandler_dev_raw::open): Drop has_raw_devices check.
	* fhandler_serial.cc (fhandler_serial::open): Drop
	.supports_reading_modem_output_lines check.
	* miscfuncs.cc (low_priority_sleep): Drop has_switch_to_thread check.
	* shared.cc (open_shared): Drop needs_memory_protection checks.
	* spawn.cc (spawn_guts): Drop start_proc_suspended check.
	* uname.cc (uname): Drop has_valid_processorlevel check.
	* wincap.cc: Remove has_raw_devices, has_valid_processorlevel,
	supports_reading_modem_output_lines, needs_memory_protection,
	has_switch_to_thread, start_proc_suspended and
	has_null_console_handler_routine throughout.
	* wincap.h: Ditto.
2007-02-23 10:51:59 +00:00
Christopher Faylor d0cf179299 * exceptions.cc (_cygtls::signal_exit): Only call myself.exit when when
exit_state indicates that we've visited do_exit.
* sync.h (lock_process::lock_process): Use renamed exit_state -
ES_PROCESS_LOCKED.
* winsup.h: Rename ES_MUTO_SET to ES_PROCESS_LOCKED.
2007-02-20 14:31:26 +00:00
Christopher Faylor 510a85cbf9 Remove extraneous whitespace.
* pinfo.cc (commune_process): Use default argument to lock_process.
* sigproc.cc: Update copyright.
* select.cc: Ditto.
2007-02-20 00:16:18 +00:00
Corinna Vinschen 70e476d27b 2006-07-25 Corinna Vinschen <corinna@vinschen.de>
* include/cygwin/version.h: Bump DLL version to 1.7.0.

2006-07-25  Corinna Vinschen  <corinna@vinschen.de>

	* select.h: Remove.
	* fhandler_socket.cc: Don't include select.h.
	* select.cc: Ditto.

2006-07-25  Corinna Vinschen  <corinna@vinschen.de>

	* cygtls.h: Drop socket related includes.
	(struct _local_storage): Remove exitsock and exitsock_sin. Add
	select_sockevt.
	* cygtls.cc: Accomodate above change throughout.
	* fhandler.h (class fhandler_socket): Make wsock_evt public.
	* fhandler_socket.cc (fhandler_socket::fhandler_socket): Accomodate
	reordering members.
	(fhandler_socket::evaluate_events): Drop FD_CONNECT event as soon as
	it gets read once.  Never remove FD_WRITE event here.
	(fhandler_socket::wait_for_events): Wait 50 ms instead of INFINITE for
	socket events.
	(fhandler_socket::accept): Fix conditional.  Set wsock_events members
	of accepted socket to useful start values.
	(fhandler_socket::recv_internal): Always drop FD_READ/FD_OOB events from
	wsock_events after the call to WSARecvFrom.
	(fhandler_socket::send_internal): Drop FD_WRITE event from wsock_events
	if the call to WSASendTo fails with WSAEWOULDBLOCK.  Fix return value
	condition.
	* select.cc (struct socketinf): Change to accomodate using socket event
	handling.
	(peek_socket): Use event handling for peeking socket.
	(thread_socket): Ditto.
	(start_thread_socket): Ditto.
	(socket_cleanup): Same here.
	* tlsoffsets.h: Regenerate.

2006-07-20  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler.h (class fhandler_socket): Rearrange slightly to keep
	event handling methods and members together.  Drop owner status flag.
	Split wait method.  Rename event handling methods for readability.
	* fhandler_socket.cc (struct wsa_event): Add owner field.
	(LOCK_EVENTS): New macro.
	(UNLOCK_EVENTS): Ditto.
	(fhandler_socket::init_events): rename from prepare.
	(fhandler_socket::evaluate_events): First half of former wait method.
	Do everything but wait.  Allow specifiying whether or not events from
	event_mask should be erased from wsock_events->events.  Simplify
	OOB handling.  Allow sending SIGURG to any process (group).
	(fhandler_socket::wait_for_events): Second half of former wait method.
	Call evaluate_events and wait in a loop if socket is blocking.
	(fhandler_socket::release_events): Rename from release.
	(fhandler_socket::connect): Accomodate above name changes.
	(fhandler_socket::accept): Ditto.
	(fhandler_socket::recv_internal): Ditto.
	(fhandler_socket::send_internal): Ditto.
	(fhandler_socket::close): Ditto.
	(fhandler_socket::fcntl): Always set owner to given input value on
	F_SETOWN.  Handle F_GETOWN.
	* net.cc (fdsock): Accomodate above name changes.

2006-07-20  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::wait): Set Winsock errno to
	WSAEWOULDBLOCK instead of WSAEINPROGRESS.

2006-07-18  Brian Ford  <Brian.Ford@FlightSafety.com>
	    Corinna Vinschen  <corinna@vinschen.de>

	* winsup.h (mmap_region_status): New enum.
	(mmap_is_attached_or_noreserve_page): Adjust prototype and rename
	as below.
	* mmap.cc (mmap_is_attached_or_noreserve_page):  Rename
	mmap_is_attached_or_noreserve.  Add region length parameter.
	Return enum above.
	* exceptions.cc (_cygtls::handle_exceptions): Accomodate above.
	* fhandler.cc (fhandler_base::raw_read): Call above for NOACCESS
	errors and retry on success to allow reads into untouched
	MAP_NORESERVE buffers.

2006-07-18  Corinna Vinschen  <corinna@vinschen.de>

	* cygwin.din (posix_openpt): Export.
	* tty.cc (posix_openpt): New function.
	* include/cygwin/stdlib.h (posix_openpt): Declare.
	* include/cygwin/version.h: Bump API minor number.

2006-07-14  Corinna Vinschen  <corinna@vinschen.de>

	* security.cc (get_token_group_sidlist): Always add the interactive
	group to the token.  Add comment.  Create logon_id group SID by
	copying it from incoming group list.
	(create_token): Add subauth_token parameter.  Use information in
	subauth_token if present.  Tweak SourceIdentifier if subauth_token
	is present for debugging purposes.
	* security.h (create_token): Add subauth_token parameter in declaration.
	* syscalls.cc (seteuid32): Call subauth first.  Call create_token
	regardless.  Use subauth token in call to create_token if subauth
	succeeded.

2006-07-13  Corinna Vinschen  <corinna@vinschen.de>

	* include/netinet/in.h: Update copyright.

2006-07-13  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::wait): Rework function so that
	WaitForMultipleObjects is really only called when necessary.

2006-07-12  Corinna Vinschen  <corinna@vinschen.de>

	* include/netdb.h: Declare rcmd, rcmd_af, rexec, rresvport,
	rresvport_af, iruserok, iruserok_sa, ruserok.

2006-07-12  Corinna Vinschen  <corinna@vinschen.de>

	* Makefile.in (DLL_OFILES): Drop iruserok.o.  Add rcmd.o.
	* autoload.cc (rcmd): Drop definition.
	* cygwin.din: Export bindresvport, bindresvport_sa, iruserok_sa,
	rcmd_af, rresvport_af.
	* net.cc (cygwin_rcmd): Remove.
	(last_used_bindresvport): Rename from last_used_rrecvport.
	(cygwin_bindresvport_sa): New function implementing bindresvport_sa.
	(cygwin_bindresvport): New function implementing bindresvport.
	(cygwin_rresvport): Remove.
	* include/cygwin/version.h: Bump API minor number.
	* include/netinet/in.h: Declare bindresvport and bindresvport_sa.
	* libc/iruserok.c: Remove file.
	* libc/rcmd.cc: New file implementing rcmd, rcmd_af, rresvport,
	rresvport_af, iruserok_sa, iruserok and ruserok.

2006-07-12  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::getsockname): Return valid
	result for unbound sockets.

2006-07-11  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler_socket.cc (fhandler_socket::fixup_after_fork): Handle
	wsock_mtx and wsock_evt on fork, thus handling close_on_exec correctly.
	(fhandler_socket::fixup_after_exec): Drop misguided attempt to handle
	close_on_exec here.
	(fhandler_socket::dup): Call fixup_after_fork with NULL parent.
	Add comment.
	(fhandler_socket::set_close_on_exec): Handle wsock_mtx and wsock_evt.

2006-07-10  Corinna Vinschen  <corinna@vinschen.de>

	* fhandler.h (class fhandler_socket): Add wsock_mtx, wsock_evt
	and wsock_events members.  Remove closed status flag, add listener
	status flag.  Accomodate new implementation of socket event handling
	methods.  Declare recv* and send* functions ssize_t as the POSIX
	equivalents.
	(fhandler_socket::recv_internal): Declare.
	(fhandler_socket::send_internal): Ditto.
	* fhandler_socket.cc (EVENT_MASK): Define mask of selected events.
	(fhandler_socket::fhandler_socket): Initialize new members.
	(fhandler_socket::af_local_setblocking): Don't actually set the
	socket to blocking mode.  Keep sane event selection.
	(fhandler_socket::af_local_unsetblocking): Don't actually set the
	socket to previous blocking setting, just remember it.
	(struct wsa_event): New structure to keep event data per shared
	socket.
	(NUM_SOCKS): Define number of shared sockets concurrently handled by
	all active Cygwin processes.
	(wsa_events): New shared datastructure keeping all wsa_event records.
	(socket_serial_number): New shared variable to identify shared sockets.
	(wsa_slot_mtx): Global mutex to serialize wsa_events access.
	(search_wsa_event_slot): New static function to select a new wsa_event
	slot for a new socket.
	(fhandler_socket::prepare): Rewrite.  Prepare event selection
	per new socket.
	(fhandler_socket::wait): Rewrite.  Wait for socket events in thread
	safe and multiple process safe.
	(fhandler_socket::release): Rewrite.  Close per-socket descriptor
	mutex handle and event handle.
	(fhandler_socket::dup): Duplicate wsock_mtx and wsock_evt.  Fix
	copy-paste error in debug output.
	(fhandler_socket::connect): Accomodate new event handling.
	(fhandler_socket::listen): Set listener flag on successful listen.
	(fhandler_socket::accept): Accomodate new event handling.
	(fhandler_socket::recv_internal): New inline method centralizing
	common recv code.
	(fhandler_socket::recvfrom): Call recv_internal now.
	(fhandler_socket::recvmsg): Ditto.  Streamline copying from iovec
	to WSABUF.
	(fhandler_socket::send_internal): New inline method centralizing
	common send code.
	(fhandler_socket::sendto): Call send_internal now.
	(fhandler_socket::sendmsg): Ditto.  Streamline copying from iovec
	to WSABUF.
	(fhandler_socket::close): Call release now.
	(fhandler_socket::ioctl): Never actually switch to blocking mode.
	Just keep track of the setting.
	* net.cc (fdsock): Call prepare now.
	(cygwin_connect): Revert again to event driven technique.
	(cygwin_accept): Ditto.
	* poll.cc (poll): Don't call recvfrom on a listening socket.
	Remove special case for failing recvfrom.
	* include/sys/socket.h: Declare recv* and send* functions ssize_t as
	requested by POSIX.

2006-07-07  Corinna Vinschen  <corinna@vinschen.de>

	* net.cc (cygwin_inet_ntop): Fix data type of forth parameter.

2006-07-06  Corinna Vinschen  <corinna@vinschen.de>

	* include/cygwin/in6.h (struct in6_addr): Fix typo.

2006-07-06  Corinna Vinschen  <corinna@vinschen.de>

	* cygwin.din: Export in6addr_any, in6addr_loopback, freeaddrinfo,
	gai_strerror, getaddrinfo, getnameinfo.
	* fhandler_socket.cc: Include cygwin/in6.h.
	(get_inet_addr): Accomodate AF_INET6 usage.
	(fhandler_socket::connect): Ditto.
	(fhandler_socket::listen): Ditto.
	(fhandler_socket::sendto): Ditto.
	* net.cc: Include cygwin/in6.h.
	(in6addr_any): Define.
	(in6addr_loopback): Define.
	(cygwin_socket): Accomodate AF_INET6 usage.
	(socketpair): Bind socketpairs only to loopback for security.
	(inet_pton4): New static function.
	(inet_pton6): Ditto.
	(cygwin_inet_pton): New AF_INET6 aware inet_pton implementation.
	(inet_ntop4): New static function.
	(inet_ntop6): Ditto.
	(cygwin_inet_ntop): New AF_INET6 aware inet_ntop implementation.
	(ga_aistruct): New static function.
	(ga_clone): Ditto.
	(ga_echeck): Ditto.
	(ga_nsearch): Ditto.
	(ga_port): Ditto.
	(ga_serv): Ditto.
	(ga_unix): Ditto.
	(gn_ipv46): Ditto.
	(ipv4_freeaddrinfo): Ditto.
	(ipv4_getaddrinfo): Ditto.
	(ipv4_getnameinfo): Ditto.
	(gai_errmap_t): New structure holding error code - error string mapping.
	(cygwin_gai_strerror): New function implementing gai_strerror.
	(w32_to_gai_err): New static function.
	(get_ipv6_funcs): Ditto.
	(load_ipv6_funcs): Ditto.
	(cygwin_freeaddrinfo): New function implementing freeaddrinfo.
	(cygwin_getaddrinfo): New function implementing getaddrinfo.
	(cygwin_getnameinfo): New function implementing getnameinfo.
	* include/netdb.h: Include stdint.h and cygwin/socket.h.  Define
	data types and macros used by getaddrinfo and friends.  Declare
	freeaddrinfo, gai_strerror, getaddrinfo and getnameinfo.
	* include/cygwin/in.h: Add IPv6 related IPPROTOs. Remove definition
	of struct sockaddr_in6.  Include cygwin/in6.h instead.
	* include/cygwin/in6.h: New header file defining IPv6 releated
	data types and macros.
	* include/cygwin/socket.h: Enable AF_INET6 and PF_INET6.  Add
	IPv6 related socket options.
	* include/cygwin/version.h: Bump API minor number.

2006-07-06  Corinna Vinschen  <corinna@vinschen.de>

	* autoload.cc (DsGetDcNameA): Define.
	(NetGetAnyDCName): Define.
	* security.cc: Include dsgetdc.h.
	(DsGetDcNameA): Declare.
	(DS_FORCE_REDISCOVERY): Define.
	(get_logon_server): Add bool parameter to control rediscovery of DC.
	Use DsGetDcNameA function if supported, NetGetDCName/NetGetAnyDCName
	otherwise.
	(get_server_groups): Rediscover DC if get_user_groups fails and
	try again.
	(get_reg_security): Use correct error code macro when testing
	RegGetKeySecurity return value.
	* security.h (get_logon_server): Remove default vaue from wserver
	parameter.  Add rediscovery parameter.
	* uinfo.cc (cygheap_user::env_logsrv): Accomodate rediscovery parameter
	in call to get_logon_server.
2006-07-25 19:23:23 +00:00
Christopher Faylor f62412f235 GCC 4.1 fixes.
* cygheap.h (cygheap_user): Remove unneeded class names from function
declaration.
* fhandler.h (fhandler_base): Ditto.
(fhandler_dev_floppy): Ditto.
(fhandler_console): Ditto.
* wininfo.h (wininfo): Ditto.
* exceptions.cc (sigpacket::process): Avoid compiler errors about gotos and
initialization.
* fhandler_fifo.cc (fhandler_fifo::open): Ditto.
* fhandler_floppy.cc (fhandler_dev_floppy::ioctl): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::ioctl): Ditto.
* mmap.cc (mmap64): Ditto.
* pipe.cc (fhandler_pipe::open): Ditto.
* spawn.cc (spawn_guts): Ditto.
* sec_helper.cc: Fix some comments.
(get_null_sd): Move file-scope static to only function where it is used.
2006-07-17 19:30:30 +00:00
Corinna Vinschen f6105f89d5 * exceptions.cc (_cygtls::handle_exceptions): Call new
mmap_is_attached_or_noreserve_page function in case of access violation
	and allow application to retry access on noreserve pages.
	* mmap.cc (mmap_is_attached_or_noreserve_page): Changed from
	mmap_is_attached_page.  Handle also noreserve pages now.  Change
	comment accordingly.
	* winsup.h (mmap_is_attached_or_noreserve_page): Declare instead of
	mmap_is_attached_page.
2006-07-13 08:33:34 +00:00
Christopher Faylor 71d59a926f * dcrt0.cc (dll_crt0_0): Call tty_list::init_session here.
(dll_crt0_1): Reflect renaming from tty_init to tty::init_session.
(do_exit): Reflect moving of tty_terminate into tty_list.
* exceptions.cc (events_init): Move tty_mutex stuff elsewhere.
* fhandler_console.cc (set_console_title): Use lock_ttys class.
* fhandler_termios.cc (fhandler_termios::bg_check): Make debug output more
accurate.
* fhandler_tty.cc (fhandler_tty_slave::open): Reflect move of attach_tty into
tty_list class.  Don't attempt to grab master end of pty if master doesn't
exist.
(fhandler_pty_master::open): Reflect move of allocate_tty into tty_list class.
Use lock_ttys::release to release mutex.  Improve debugging output.
(fhandler_pty_master::setup): Remove if 0'ed block.  Fix argument to
SetNamedPipeHandleState.
* pinfo.cc (_pinfo::set_ctty): Lock ttys before setting sid/pgid.  Improve
debugging.  Add temporary debugging.
* tty.cc (tty_list::init_session): New function.
(tty::init_session): Rename from tty_init.  Reflect move of attach_tty to
tty_list class.
(tty::create_master): Rename from create_tty_master.
(tty_list::attach): Rename from attach_tty.  Reflect renaming of connect_tty to
connect.  Ditto for allocate_tty.
(tty_terminate): Delete.
(tty_list::terminate): Subsume tty_terminate.  Use lock_ttys rather than
manipulating mutex directly.
(tty_list::allocate): Rename from allocate_tty.  Use lock_ttys rather than
manipulating mutex directly.  Don't set sid here since linux apparently doesn't
do this.  Reflect move of create_tty_master into tty.
(lock_ttys::lock_ttys): Define new constructor.
(lock_ttys::release): New function.
* tty.h (tty::exists): Return false immediately if !master_pid.
(tty::set_master_closed): Define new function.
(tty::create_master): Ditto.
(tty::init_session): Ditto.
(tty_list::mutex): New field.
(tty_list::allocate): Define new function.
(tty_list::connect): Ditto.
(tty_list::attach): Ditto.
(tty_list::init_session): Ditto.
(lock_ttys): New class.
(tty_init): Delete declaration.
(tty_terminate): Ditto.
(attach_tty): Ditto.
(create_tty_master): Ditto.
2006-06-03 20:32:07 +00:00
Christopher Faylor 35016286da * cygtls.h (CYGTLS_PADSIZE): Bump up or suffer a regrettable collision with the
call chain.
2006-06-03 02:58:59 +00:00
Christopher Faylor 34f5d0879c white space 2006-05-28 15:50:14 +00:00
Christopher Faylor 6813f009ba * child_info.h (_CI_SAW_CTRL_C): New enum.
(CURR_CHILD_INFO_MAGIC): Reset.
(saw_ctrl_c): New function.
(set_saw_ctrl_c): Ditto.
* sigproc.cc (child_info::proc_retry): Return EXITCODE_OK if we get
STATUS_CONTROL_C_EXIT and we actually saw a CTRL-C.
* spawn.cc (dwExeced): Delete.
(chExeced): New variable.
(spawn_guts): Set chExeced;
* exceptions.cc (dwExeced): Delete declaration.
(chExeced): Declare.
(ctrl_c_handler): Detect if we're an exec stub process and set a flag, if so.
* fhandler_tty.cc (fhandler_tty_common::__release_output_mutex): Add extra
DEBUGGING test.
* pinfo.cc: Fix comment.
2006-05-22 04:50:54 +00:00
Christopher Faylor 4c6f65fc7c * exceptions.cc (ctrl_c_handler): Only exit TRUE on CTRL_LOGOFF_EVENT when we
have actually handled the event.
2006-04-18 16:24:54 +00:00
Christopher Faylor 76ef40d69f * child_info.h (child_status): Fix typo which made it impossible to set
iscygwin.
(child_info::isstraced): Booleanize.
(child_info::iscygwin): Ditto.
* sigproc.cc (child_info::child_info): Minor cleanup of flag setting.
* spawn.cc (spawn_guts): Only close_all_files when we know the process has
started successfully.
* exceptions.cc (init_console_handler): Fix indentation.
2006-03-22 03:20:28 +00:00
Christopher Faylor cba9ecfffd * dcrt0.cc (dll_crt0_0): Don't bother with setting init_console_handler here
since it will be set later when we discover if we have a ctty or not.
* exceptions.cc (init_console_handler): Properly remove NULL handler.
2006-03-20 01:11:30 +00:00
Christopher Faylor a939686807 * child_info.h (CURR_CHILD_INFO_MAGIC): Regenerate.
(child_info::retry): Move here from fork subclass.
(child_info::exit_code): New field.
(child_info::retry_count): Max retry count for process start.
(child_info::proc_retry): Declare new function.
(child_info_fork::retry): Move to parent.
(child_info_fork::fork_retry): Ditto.
* dcrt0.cc (child_info::fork_retry): Rename and move.
(child_info_fork::handle_failure): Move.
(dll_crt0_0): Initialize console handler based on whether we have a controlling
tty or not.  Avoid nonsensical check for fork where it can never occur.
* environ.cc (set_proc_retry): Rename from set_fork_retry.  Set retry_count in
child_info.
(parse_thing): Reflect above change.
* exceptions.cc (dummy_ctrl_c_handler): Remove unused variable name.
(ctrl_c_handler): Always return TRUE for the annoying CTRL_LOGOFF_EVENT.
* fhandler_termios.cc (fhandler_termios::tcsetpgrp): Remove call to
init_console_handler.
* fhandler_tty.cc (fhandler_tty_slave::open): Just call mange_console_count
here and let it decide what to do with initializing console control handling.
* fork.cc (fork_retry): Remove definition.
(frok::parent): Define static errbuf and use in error messages (not thread safe
yet).  Close pi.hThread as soon as possible.  Protect pi.hProcess as soon as
possible.  Don't set retry_count.  That happens automatically in the
constructor now.  Accommodate name change from fork_retry to proc_retry.
* init.cc (dll_entry): Turn off ctrl-c handling early until we know how it is
supposed to be handled.
* pinfo.cc (_pinfo::dup_proc_pipe): Remember original proc pipe value for
failure error message.  Tweak debug message slightly.
* sigproc.cc (child_info::retry_count): Define.
(child_info::child_info): Initialize retry count.
(child_info::sync): Set exit code if process dies before synchronization.
(child_info::proc_retry): Rename from child_info_fork::fork_retry.  Use
previously derived exit code.  Be more defensive about what is classified as an
error exit.
(child_info_fork::handle_failure): Move here from dcrt0.cc.
* spawn.cc (spawn_guts): Maintain error mode when starting new process to avoid
annoying pop ups.  Move deimpersonate call within new loop.  Move envblock
freeing to end.  Loop if process dies prematurely with bad exit code.
* syscalls.cc (init_console_handler): Remove hopefully unneeded call to
init_console_handler.
2006-03-18 19:17:21 +00:00
Christopher Faylor 974f27a51a * cygheap.cc (init_cygheap::manage_console_count): Turn console control handler
on/off depending on whether we have allocated a console or not.
* dcrt0.cc (child_info_fork::fork_retry): Add more potential retry statuses.
(dll_crt0_0): Turn on/off console control depending on whether we have a
controlling tty or not.
* exceptions.cc (init_console_handler): Change BOOL to bool.
* fhandler_console.cc (fhandler_console::need_invisible): Cosmetic change.
* winsup.h (init_console_handler): Reflect argument type change.
* wincap.h (supports_setconsolectrlhandler_null): Remove duplicate capability
throughout.
* wincap.cc: Ditto.
2006-03-16 02:57:37 +00:00
Christopher Faylor 84d3817405 * child_info.h (child_info_fork::handle_failure): Declare new function.
(child_info_fork::retry): New field.
* dcrt0.cc (__api_fatal_exit_val): Define.
(child_info_fork::handle_failure): Define new function.
(__api_fatal): Exit using __api_fatal_exit_val value.
* environ.cc (set_fork_retry): Set fork_retry based on CYGWIN environment
variable.
(parse_thing): Add "fork_retry" setting.
* fork.cc (fork_retry): Define.
(frok::parent): Reorganize to allow retry of failed child creation if child
signalled that it was ok to do so.
* heap.cc (heap_init): Signal parent via handle_failure when VirtualAlloc
fails.
* pinfo.h (EXITCODE_RETRY): Declare.
* sigproc.cc (child_info::sync): Properly exit with failure condition if called
for fork and didn't see subproc_ready.
* spawn.cc (spawn_guts): Use windows pid as first argument.
* winsup.h: Remove obsolete NEW_MACRO_VARARGS define.
(__api_fatal_exit_val): Declare.
(set_api_fatal_return): Define.
(in_dllentry): Declare.
* exceptions.cc (inside_kernel): Remove unneeded in_dllentry declaration.
2006-03-13 21:10:14 +00:00
Christopher Faylor d405630e71 * exceptions.cc (_cygtls::interrupt_now): Remove "inside cygwin" check since
some cygwin functions are meant to be interrupted.
2006-02-28 20:02:16 +00:00
Christopher Faylor 7fbfec2b64 * winsup.h (cygwin_hmodule): Declare.
* exceptions.cc (inside_kernel): Reverse return values to reflect function
name.  Return true if we're in cygwin1.dll or if we're executing in dll_entry.
(_cygtls::interrupt_now): Reflect reversal of inside_kernel return value.
* hookapi.cc (cygwin_hmodule): Remove declaration.
* init.cc (dll_entry): Use in_dllentry global to record that we are executing
in dllentry.
2006-02-23 19:21:21 +00:00
Corinna Vinschen 2eecb0478c * exceptions.cc (_cygtls::interrupt_now): Reorder conditional
to call inside_kernel only if this isn't locked.
2006-02-22 17:06:14 +00:00
Christopher Faylor a339c989c7 * exceptions.cc (stackdump): Avoid dumping more than once. 2006-02-20 02:04:31 +00:00
Corinna Vinschen c6e48b1cd1 * cygwin.din: Export sigignore and sigset.
* exceptions.cc (sigset): New function.
	(sigignore): New function.
	* include/cygwin/signal.h (SIG_HOLD): Define.
	(sigignore): Declare.
	(sigset): Declare.
	* include/cygwin/version.h: Bump API minor number to 154.
2006-02-16 18:21:49 +00:00
Christopher Faylor 985d0e68c5 Always zero all elements of siginfo_t throughout.
* cygtls.h (_cygtls::thread_context): Declare new field.
(_cygtls::thread_id): Ditto.
(_cygtls::signal_exit): Move into this class.
(_cygtls::copy_context): Declare new function.
(_cygtls::signal_debugger): Ditto.
* cygtls.cc (_cygtls::init_thread): Fill out thread id field.
* exceptions.cc (exception): Change message when exception info is unknown.
Copy context to thread local storage.
(_cygtls::handle_exceptions): Avoid double test for fault_guarded.  Reflect
move of signal_exit to _cygtls class.
(sigpacket::process): Copy context to thread local storage.
(_cygtls::signal_exit): Move to _cygtls class.  Call signal_debugger to notify
debugger of exiting signal (WIP).  Call stackdump here (WIP).
(_cygtls::copy_context): Define new function.
(_cygtls::signal_debugger): Ditto.
* tlsoffsets.h: Regenerate.
* include/cygwin.h (_fpstate): New internal structure.
(ucontext): Declare new structure (WIP).
(__COPY_CONTEXT_SIZE): New define.
* exceptions.cc (_cygtls::interrupt_setup): Clear "threadkill" field when there
is no sigwaiting thread.
(setup_handler): Move event handling into interrupt_setup.
2006-02-06 18:24:11 +00:00
Christopher Faylor e1bfb483ea * exceptions.cc (inside_kernel): Fix to return true if we can't get the name of
the DLL for the given memory block since we are not in kernel code.
2006-01-27 06:06:06 +00:00
Christopher Faylor 68f62c98f9 add copyright 2006-01-02 02:57:54 +00:00
Christopher Faylor 4eab146fc7 * exceptions.cc (sigpacket::process): Pass actual reference to signal's
sigaction structure to setup_handler.
2006-01-01 17:15:01 +00:00
Christopher Faylor a14d65557a * exceptions.cc (_cygtls::interrupt_setup): Implement SA_RESETHAND.
* include/cygwin/signal.h: Define SA_ONESHOT and SA_NOMASK.
* dcrt0.cc (get_cygwin_startup_info): Remove commented out code.
2006-01-01 16:51:29 +00:00
Corinna Vinschen 20e84812d2 * exceptions.cc (_cygtls::handle_exceptions): Drop redundant `break'. 2005-12-27 20:47:49 +00:00
Corinna Vinschen a5912e6dbc * exceptions.cc (inside_kernel): Rename from interruptible.
Accommodate change throughout file.
2005-12-27 20:20:09 +00:00
Corinna Vinschen 4f12275501 * exceptions.cc (interruptible): New function, code stripped from
_cygtls::interrupt_now.
	(_cygtls::handle_exceptions): Handle STATUS_DATATYPE_MISALIGNMENT as
	SIGBUS error.  Differ between unmapped memory (SEGV_MAPERR) and access
	violation (SEGV_ACCERR) in case of STATUS_ACCESS_VIOLATION.  Write
	kernel log message in case of uncatched STATUS_ACCESS_VIOLATION.
	(_cygtls::interrupt_now): Just call interruptible now instead of
	evaluating interruptibility here.
2005-12-27 20:07:59 +00:00
Christopher Faylor dcd0465b2b * cygtls.cc (_cygtls::handle_threadlist_exception): Make an error fatal.
* cygtls.h (sockaddr_in): Use header rather than defining our own structure.
* exceptions.cc (_cygtls::interrupt_setup): Use exact contents of sa_mask
rather than assuming tht current sig should be masked, too.
(_cygtls::call_signal_handler): Use more aggressive locking.
* gendef (_sigbe): Wait until later before releasing incyg.
(_sigreturn): Remove more arguments to accommodate quasi-sa_sigaction support.
(_sigdelayed): Push arguments for sa_sigaction.  More work needed here.
* signal.cc (sigaction): Implement SA_NODEFER.
* tlsoffsets.h: Regenerate.

* sigproc.cc (wait_sig): Use default buffer size of Windows 9x complains.
* pinfo.cc (_onreturn::dummy_handle): Remove.
(_onreturn::h): Make this a pointer.
(_onreturn::~_onreturn): Detect whether pointer is NULL rather than value is
NULL.
(_onreturn::_onreturn): Set h to NULL initially.
(_onreturn::no_close_p_handle): Set h to NULL.
(winpids::add): Initialize onreturn with value from p.hProcess immediately.
2005-12-23 22:50:20 +00:00
Christopher Faylor de935f6d9f whitespace cleanup to force snapshot. 2005-12-22 05:57:54 +00:00
Christopher Faylor 98da134d62 * cygtls.h (_cygtls::interrupt_now): Subsume interruptible().
(interruptible): Delete.
(setup_handler): Remove interruptible call and just use return from
interrupt_now.
2005-12-20 00:31:50 +00:00
Christopher Faylor ad02bb70e3 * winsup.h (child_copy): Change prototype to match new functionality.
* cygheap.cc (cygheap_fixup_in_child): Accommodate new child_copy arguments.
* dcrt0.cc (dll_data_start): Move definition here from fork.
(dll_data_end): Ditto.
(dll_bss_start): Ditto.
(dll_bss_end): Ditto.
(handle_fork): New function.  Called when forked to deal with fork issues and
copy data to this process from the parent.
(dll_crt0_0): Call handle_fork when _PROC_FORK condition.
(dll_crt0): Don't copy user_data when we've forked.  Don't zero first element
of main_environment ever.
(cygwin_dll_init): Ditto.
* fork.cc (child_copy): Rename from fork_copy and change arguments so that each
pair of things to copy gets its own descriptor.
(frok::child): Remove fixup_mmaps_after_fork call here.  Move to handle_fork in
dcrt0.cc.
(frok::parent): Use child_copy rather than fork_copy and accommodate changes in
parameters.
* exceptions.cc (setup_handler): Delay test of whether we're locked until after
GetThreadContext has been called since there are apparently cases where
SuspendThread does not cause an immediate thread suspension.
2005-12-17 04:36:39 +00:00
Corinna Vinschen 5a101414ed * exceptions.cc (_cygtls::handle_exceptions): In case of a
STATUS_ACCESS_VIOLATION, check if the page is a mmaped page beyond
	a file's EOF.  Generate SIGBUS instead of SIGSEGV then.
	* mmap.cc (__PROT_ATTACH): New define.
	(__PROT_FILLER): Ditto.
	(fh_anonymous): Rename from fh_paging_file;
	(fh_disk_file): New global static variable.
	(attached): New inline function.
	(filler): Ditto.
	(gen_create_protect): Split off from gen_protect to use the file's
	access mode to create mapping always with maximum allowed protections.
	(gen_protect): Accomodate pages attached beyond EOF.  Use symbolic
	values instead of numerics when possible.  Drop create parameter.
	(gen_access): Use file's access mode instead of protection.
	(CreateMapping9x): Create named mapping names so that different
	creation access modes result in different mappings.
	(CreateMappingNT): Only reserve attached pages, don't commit them.
	(MapViewNT): Ditto.  Set AT_ROUND_TO_PAGE for all non-NULL base
	addresses.
	(mmap_func_t): Define CreateMapping and MapView function pointers
	with additional openflags parameter.
	(class mmap_record): Add openflags member.
	(mmap_record::mmap_record): Add openflags parameter.
	(mmap_record::get_openflags): New accessor.
	(mmap_record::attached): Call global attached function.
	(mmap_record::filler): Call global filler function.
	(mmap_record::gen_create_protect): Call global gen_create_protect
	function.
	(mmap_record::gen_protect): Drop create parameter.
	(mmap_record::alloc_fh): Set fhandler's access flags.
	(list::search_record): Accomodate filler pages.
	(list::set): Use inode number as hash value.
	(map::get_list_by_fd): Check hash value against file's inode number.
	(mmap_is_attached_page): New function to evaluate if a given address
	is on a attached page.  Called from _cygtls::handle_exceptions.
	(mmap_worker): New function to do mapping and bookkeeping in a
	single call.
	(mmap64): Use roundup2 to round length to pagesize alignment.
	Initialize global fhandlers.  Simplify anonymous initialization.
	Add SUSv3 compatible check of file open mode vs. requested protection.
	Try creating new file handles to allow maximum page protection.
	Allow creating attached pages in case of mapping beyond EOF.
	Close new file handle if one has been created.
	(munmap): Align len to pagesize.
	(msync): Rework argument checks. Align len to pagesize.
	(mprotect): Ditto.  Accomodate attached pages.
	(mlock): Use roundup/rounddown macros instead of homemade expressions.
	(munlock): Add page alignment as in mlock.
	(fhandler_dev_zero::munmap): Fix unmapping of non-private mappings.
	(fhandler_dev_zero::fixup_mmap_after_fork): Accomodate filler pages.
	(fixup_mmaps_after_fork): Don't fail if attached pages couldn't be
	created in child.  Avoid superfluous call to VirtualFree.  Check for
	original allocation protection to fix PAGE_WRITECOPY protection.
	* ntdll.h: Revert deletion of AT_ROUND_TO_PAGE define.
	* winsup.h (mmap_is_attached_page): Declare.
2005-12-07 11:16:47 +00:00
Christopher Faylor 09b0109620 Remove unneeded whitespace.
* cygtls.cc (_cygtls::set_state): Delete.
(_cygtls::reset_exception): Ditto.
(_cygtls::init_thread): Set initialized state directly here.
(_cygtls::push): Remove exception argument.  Don't treat exceptions specially.
* cygtls.h (_cygtls::push): Ditto.
(_cygtls::isinitialized): Don't treat exceptions specially.
(_cygtls::reset_exception): Delete.
(_cygtls::set_state): Ditto.
(_cygtls::handle_exceptions): Don't push ebp on the stack prior to calling
sig_send.  Just set incyg instead.
(_cygtls::interrupt_setup): Accommodate _cygtls::push argument change.
(_cygtls::interrupt_now): Ditto.
(setup_handler): Don't treat exceptions specially.
* gendef (longjmp): Always zero incyg flag.
2005-12-05 20:20:18 +00:00
Christopher Faylor 49085f6f16 * include/exceptions.h (exception_list): Revert previous change. Windows
doesn't care.
(exception_handler): Use real exception_list parameter type rather than void *
* tlsoffsets.h: Regenerate.
* cygtls.h (_cygtls::handle_exceptions): Use real exception_list parameter type
rather than void *.
(handle_threadlist_exception): Ditto.
(init_exception_handler): Ditto.
* cygtls.cc (_cygtls::handle_threadlist_exception ): Ditto.
(_cygtls::init_exception_handler): Add kludge to terminate linked list with a
loop, which seems to solve problem of RtlUnwind causing problems
* exceptions.cc (rtl_unwind): Use real exception_list parameter type rather
than void *.
(_cygtls::handle_exceptions): Ditto.
2005-12-03 05:01:51 +00:00
Christopher Faylor f153e6b280 * cygtls.h (_cygtls::el): New field.
(_cygtls::handle_exceptions): New function declaration.
(_cygtls::handle_threadlist_exception): Ditto.
(_cygtls::init_exception_handler): Ditto.
(_cygtls::init_threadlist_exceptions): Remove arg from declaration.
* cygtls.cc (_cygtls::call2): Don't initialize exceptions here.
(_cygtls::init_thread): Do it here instead and use member function.
(_cygtls::handle_threadlist_exception): Move into _cygtls class.
(_cygtls::init_exception_handler): Ditto.  Rely on existence of 'el' memmber in
_cygtls.
(_cygtls::init_threadlist_exceptions): Ditto.
* dcrt0.cc (dll_crt0_1): Remove exception_list definition and setting since it
now commonly resides in the tls.
* exceptions.cc (init_exception_handler): Move to cygtls.cc.
(init_exceptions): Ditto.
(rtl_unwind): New, safe wrapper function for RtlUnwind.
(_cygtls::handle_exceptions): Move to _cygtls.  Call rtl_unwind to unwind
frames and eliminate copying of structures.  Put address of failing instruction
in si_addr, not the address on the stack.  Return 0 to indicate that we've
handled this exception.
* external.cc (cygwin_internal): Make CW_INIT_EXCEPTIONS a no-op.
* sigproc.cc (wait_sig): Accommodate argument change to
_cygtls::init_threadlist_exceptions.
* tlsoffsets.h: Regenerate.
* include/exceptions.h (exception_list): Add more stuff to the exception list.
Apparently windows needs this?
(init_exceptions): Remove bogus declaration.
* include/cygwin/signal.h (SI_USER): Redefine as zero as per SUSv3.
* thread.cc (pthread_kill): Set si_pid and si_uid.
* timer.cc (timer_thread): Set si_code to SI_TIMER.
2005-12-03 04:23:35 +00:00
Christopher Faylor 8b3c84227f * exceptions.cc (handle_exceptions): Translate a guard page exception to a
"SIGBUS".
2005-12-01 20:52:00 +00:00
Christopher Faylor 2cf13b63be * heap.cc: Remove spurious getpagesize declaration.
* exceptions.cc (ctrl_c_handler): Distinguish CTRL-BREAK from CTRL-C in some
cases.
2005-11-25 19:53:52 +00:00
Christopher Faylor 409d1d50fd * include/sys/elf64.h: Fix types to reflect linux usage. 2005-11-14 20:34:33 +00:00
Christopher Faylor b7bb9f5fde * include/sys/cygwin.h: Define CYGWIN_SIGNAL_STRING.
* exceptins.cc (sigpacket::process): Send a _CYGWIN_SIGNAL_STRING to gdb if the
process is being debugged.  A WIP.
2005-11-01 05:55:30 +00:00
Christopher Faylor 0dc249751d * exceptions.cc (signal_exit): Eliminate setting of main thread priority since
process lock should make that unnecessary.
* fork.cc (stack_base): Eliminate.
(frok::parent): Subsume stack_base and just set stack stuff here.  Report on
priority class in debugging output.
* spawn.cc (spawn_guts): Report on priority class in debugging output.
2005-10-29 20:33:59 +00:00
Christopher Faylor 267e201dae Change process_lock to lock_process throughout. Change all calls to new
cygthread to handle extra argument, throughout.
* cygthread.h (cygthread::callproc): Declare new method.
(cygthread::cygthread): Add optional length argument to allow copying arguments
to executing thread.
* cygthread.cc (cygthread::callproc): Define new method.
(cygthread::stub): Use callfunc to invoke thread func to allow potentially
allocating stack memory which will be returned.
(cygthread::simplestub): Ditto.
(cygthread::cygthread): Accept arglen argument.  Reset ev here prior to
activating thread.  Wait for ev after activating thread if we're copying
contents to the thread.  Wait until the end before setting h, to allow thread
synchronization.
(cygthread::release): Don't reset ev here.  Rely on that happening the next
time the thread is activated.
* pinfo.h (commune_process): Rename declaration from _pinfo::commune_process.
* pinfo.cc (commune_process): Ditto for definition.  Modify slightly to allow
running as a separate cygthread.
* sigproc.cc (child_info::sync): Always wait for both subproc_ready and any
hProcess if we have a cygwin parent.
(talktome): Change argument to be a pointer to siginfo_t.  Contiguously
allocate whole siginfo_t structure + any needed extra for eventual passing to
commune_process thread.
(wait_sig): Accommodate change in talktome argument.
* pipe.cc (fhandler_pipe::fixup_after_exec): Remove debugging.
2005-10-17 23:27:00 +00:00
Christopher Faylor fa35a1ee5c * cygheap.h (class process_lock): New class.
* dtable.h (class dtable): Add class process_lock as a friend.
* dcrt0.cc (get_exit_lock): Delete.
(do_exit): Use process_lock class instead of get_exit_lock.
* exceptions.cc (signal_exit): Ditto.
* pinfo.cc (pinfo::exit): Ditto.
(_pinfo::commune_process): Set process lock around this whole function.
(_pinfo::commune_request): Use process_lock rather than myself.lock.
* pinfo.h (pinfo::_lock): Delete.
(pinfo::initialize_lock): Delete.
(pinfo::lock): Delete.
(pinfo::unlock): Delete.
* winsup.h (get_exit_lock): Delete declaration.
2005-10-03 17:23:54 +00:00
Christopher Faylor 0cb6fc5d30 * dcrt0.cc (get_exit_lock): Use myself.lock rather than exit_lock.
* exceptions.cc (exit_lock): Delete.
(events_init): Don't init exit_lock.
* (_pinfo::commune_process): Add per-PICOM debugging.
* sigproc.cc (talktome): Add some temporary debugging statements.
* fhandler_proc.cc (format_proc_cpuinfo): Cosmetic change.
(format_proc_partitions): Ditto.
* syscalls.cc (locked_append): Ditto.
2005-10-02 00:13:41 +00:00
Christopher Faylor f5cfdc0fa4 * dcrt0.cc (do_exit): Don't set ES_SET_MUTO here. Call get_exit_lock()
instead.
(get_exit_lock): New function.  Grabs the lock and sets initial exit_state.
* exceptions.cc (try_to_debug): Use low_priority_sleep.
(sigpacket::process): Avoid handler if this is an exec stub.
(signal_exit): Use get_exit_lock rather than manipulating the exit_lock
critical section directly.
* pinfo.cc (pinfo::exit): Ditto.
* winsup.h (get_exit_lock): Declare.
(exit_lock): Delete declaration.
2005-09-30 23:52:13 +00:00
Christopher Faylor a3d5219c5f * exceptions.cc (_cygtls::call_signal_handler): Minor cleanup. 2005-09-26 14:58:16 +00:00
Christopher Faylor d5f4ee62b7 * exceptions.cc (handle_exceptions): Just si_code to SI_KERNEL first and let it
be overridden.
* exceptions.cc (_cygtls::call_signal_handler): Call signal handler with extra
siginfo_t * and void * parameters when SA_SIGINFO flag is set.
* signal.cc (signal): Clear SA_SIGINFO flag.
(sigqueue): Fix incorrect setting of si_code.
* sigproc.cc (signal_fixup_after_exec): Clear SA_SIGINFO flag when setting
handler to SIG_DFL.
2005-09-26 14:51:48 +00:00
Christopher Faylor f086715060 * exceptions.cc (handle_exceptions): Properly fill out si_code. 2005-09-26 13:23:47 +00:00
Christopher Faylor 5e477e9a9b Semi-reversion of always-exit-from-sigthread change of 2005-09-15.
* exceptions.cc (sigpacket::process): Eliminate return after call to reinstated
noreturn function.
(signal_exit): Allow function to exit when a captive process has been
terminated.
* pinfo.cc (pinfo::exit): Enter exit_lock here.  Once again exit here under
control of exit_lock.
* sigproc.cc (sig_send): Don't wait for completion if process is exiting.
Remove special __SIGEXIT accommodations.
(wait_sig): Just exit the thread when a __SIGEXIT has been detected.  Don't
exit the process.
2005-09-23 23:37:52 +00:00