Commit Graph

290 Commits

Author SHA1 Message Date
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
Christopher Faylor 936e4018b6 * cygheap.cc (cygheap_fixup_in_child): It's not just for exec.
* cygtls.h (struct _cygtls::thread_handle): New field.
* dcrt0.cc (exit_lock): Remove declaration.
* winsup.h (exit_lock): Add declaration.
* exceptions.cc (sigpacket::process): Properly return after signal_exit.
* pinfo.cc (pinfo::exit): Only exit the process if _my_tls.thread_handle has
not been filled out -- which should be an impossible event.
* sigproc.cc (sigproc_terminate): Fillout _my_tls.thread_handle to provide
something for wait_sig to wait for.  Use the siginfo_t version of sig_send and
fill out the tls argument with _my_tls.
(wait_sig): Wait for the thread specified in pack.tls or (for now) complain
bitterly if it doesn't exit.
2005-09-23 03:35:41 +00:00
Christopher Faylor c529909f45 * dcrt0.cc (do_exit): Only call sigproc_terminate from one location --
pinfo::exit.
* pinfo.cc (pinfo::exit): Move sigproc_terminate later so that signals can be
processed while waiting for hExeced child.
(pinfo::maybe_set_exit_code_from_windows): Set exit code from sigExeced if it
is non-zero.  Set exit_state to ES_EXEC_EXIT prior to waiting for captive
process exit code.
* exceptions.cc (sigExeced): New global variable.
(signal_exit): Remove noreturn attribute from declaration.
(signal_exit): Just terminate captive process and return if hExeced on the
theory that the exit will be subsequently handled in the main thread.
* sigproc.cc (sigproc_terminate): Eliminate test for ES_SIGPROCTERMINATE and
use ES_FINAL instead.
(sig_send): Use no_signals_available instead of duplicate test.
* winsup.h (ES_EXEC_EXIT): New enum.
(ES_SIGPROCTERMINATE): Delete.
2005-09-20 02:06:57 +00:00
Christopher Faylor a611ae50d5 * exceptions.cc (sigtid): Remove declaration.
(handle_exceptions): Use _sig_tls rather than sigtid to determine if this is
the signal thread.
(set_signal_mask): Ditto for conditionalized CGF code.
* pinfo.cc (pinfo::exit): Exit the thread if we forcefully terminated the main
thread
* sigproc.cc (sigtid): Delete.
(_sig_tls): Define.
(sig_clear): Use _sig_tls rather than sigtid to determine if this is the signal
thread.
(sig_dispatch_pending): Ditto.
(wait_sig): Set _sig_tls here.
* dcrt0.cc (do_exit): Move sigproc_terminate call later since signal handling
was still needed for subsequent stuff.  Call sigproc_terminate with new
exit_state value.
* pinfo.cc (pinfo::exit): Call sigproc_terminate with new exit_state value.
* sigproc.cc (proc_terminate): Remove unnecessary (void) parameter.
(sigproc_terminate): Ditto.  Add new argument to accept exit state to be set.
(wait_sig): Reorganize __SIGEXIT handling.  Add more debugging output.
* winsup.h (sigproc_terminate): Declare with new exit_state argument.
(exit_states): Reorganize to reflect new exit ordering of sigproc_terminate.
2005-09-14 14:00:07 +00:00
Christopher Faylor 67483cb2cd * dcrt0.cc (do_exit): Rely on sigproc_terminate to set exit_state
appropriately.
* pinfo.cc (pinfo::exit): Always call sigproc_terminate here.  Rely on
sigproc_terminate to signal signal thread to handle eventual process exit.
* sigproc.cc (no_signals_available): Change criteria for determining if this
process can handle signals to itself.
(my_sendsig): New variable.  Copy of my sendsig handle.
(proc_can_be_signalled): Don't send signals if exit code is set.
(sigproc_terminate): Use and set exit_state appropriately to determine when to
do anything.  Send __SIGEXIT to self to control process exit.
(sig_send): Use my_sendsig for sending signals.  Don't call
proc_can_be_signalled for myself since the criteria is now different for
sending signals to myself.
(wait_sig): Copy myself->sendsig to my_sendsig for future use.  Exit signal
loop when __SIGEXIT is received.  Wait for main thread to exit and use its exit
status to actually exit process.
* sigproc.h (__SIGEXIT): New enum.
* dcrt0.cc (alloc_stack): Eliminate superfluous "return;".
* debug.cc (add_handle): Ditto.
* devices.in (device::parse): Ditto.
* dtable.cc (dtable::vfork_parent_restore): Ditto.
(dtable::vfork_child_fixup): Ditto.
* environ.cc (parse_options): Ditto.
* errno.cc (seterrno_from_win_error): Ditto.
* exceptions.cc (sig_handle_tty_stop): Ditto.
(set_signal_mask): Ditto.
* fhandler.cc (fhandler_base::read): Ditto.
(fhandler_base::operator delete): Ditto.
(fhandler_base::seekdir): Ditto.
(fhandler_base::rewinddir): Ditto.
* fhandler_console.cc (fhandler_console::read): Ditto.
(fhandler_console::fixup_after_exec): Ditto.
* sigproc.cc (sigproc_init): Ditto.
(sigproc_terminate): Ditto.

* devices.cc: Regenerate.
2005-09-13 17:08:54 +00:00
Corinna Vinschen bd84404b0f * exceptions.cc (ctrl_c_handler): Disable any special CTRL_LOGOFF_EVENT
handling and add longish comment about the reasons.
2005-09-08 14:58:15 +00:00
Christopher Faylor 41ff9d8c7d * dcrt0.cc (initial_env): Don't attempt stracing if dynamically loaded.
(dll_crt0_0): Move console initialization earlier.
* init.cc (dll_entry): Move console initialization here.
* exceptions.cc (init_console_handler): Fully remove any old console handler.
* spawn.cc (spawn_guts): Don't fill out windows argv if we've deduced that this
is a cygwin-using program.
(av::fixup): Always check executables to see if they are using cygwin1.dll.
Don't consider .com files to be scripts.
* hookapi.cc (rvadelta): New function.
(PEHeaderFromHModule): Simplify slightly.
(hook_or_detect_cygwin): Use passed in name argument for "HMODULE" rather than
incorrectly reading current program.  Calculate delta needed to read image data
and file names if this isn't a real "HMODULE".
2005-09-07 03:10:17 +00:00
Christopher Faylor be7d909395 Grr. REVERT erroneous checkin. AGAIN. 2005-09-02 17:35:22 +00:00
Christopher Faylor 414808f9e0 * Makefile.in (CXXFLAGS): Use 'override' to correctly set flags to generate
dependencies when invoked from top-level make.
2005-09-02 17:12:37 +00:00
Christopher Faylor b8a66ba2cd revert inexplicable previous checkin 2005-09-02 04:51:09 +00:00
Christopher Faylor 7a1bf10a84 bad_addresses 2005-09-02 04:46:51 +00:00