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* * gendef (_setjmp (x86)): Save FPU control word location in sequentialChristopher Faylor2014-01-271-4/+4
| | | | | location. Adjust sigstack save accordingly. (_longjmp (x86)): Ditto for restore.
* * gendef (sigdelayed (x86_64)): Save and restore FPU control word.Corinna Vinschen2014-01-271-4/+33
| | | | | | | (_sigdelayed (x86)): Ditto. Save and restore XMM registers. Add comment. (_setjmp (x86)): Save FPU control word, following FreeBSD here. (_longjmp (x86)): Restore FPU control word.
* * dll_init.cc (dll_list::topsort): Fix early-return condition toCorinna Vinschen2013-05-271-4/+4
| | | | | | | accommodate process with all runtime loaded DLLs already dlclosed at fork time. * gendef (_sigfe_maybe): Fix code handling early return if we don't have a tls, broken on 2013-05-21.
* x86_64 only:Corinna Vinschen2013-05-211-31/+20
| | | | | | | * gendef (_sigfe_maybe): Drop pushing %r12, use %r10 instead since we don't call yield anymore. (_sigfe): Ditto. (_sigbe): Ditto.
* * gendef: Fix sigfe.s typo.Christopher Faylor2013-05-011-1/+1
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* * i686.din: New file.Christopher Faylor2013-04-301-19/+17
| | | | | | | | | * x86_64.din: New file. * common.din: New file. * cygwin.din: Delete. * cygwin64.din: Delete. * gendef: Rework to take options rather than using positional parameters. Accept multiple files as input.
* * Merge in cygwin-64bit-branch.Corinna Vinschen2013-04-231-10/+465
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* Throughout, change __attribute__ ((regparm (N))) to just __regN. Throughout,Christopher Faylor2013-01-211-10/+11
| | | | | | | | | | | | | | | | | | | (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.
* * cygtls.h (_cygtls::get_signal_arrived): Add parameter to make lock/unlockChristopher Faylor2012-12-071-0/+2
| | | | | | | conditional. * exceptions.cc (_cygtls::interrupt_setup): Don't get a lock when setting signal_arrived since we already have one. * gendef: Add some comments to make it easier to find functions.
* * gendef: Tighten up whitespace detection.Christopher Faylor2012-08-151-4/+4
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* * gendef: Delete unneeded read from <IN> which ate an arbitrary line fromChristopher Faylor2012-08-151-2/+1
| | | | cygwin.din.
* * exceptions.cc (sigdelayed): Move declaration to sigproc.h.Christopher Faylor2012-08-151-2/+3
| | | | | | | * sigproc.h (sigdelayed): Make symbol globally available. * gendef (sigdelayed): Specifically zero incyg and stacklock. * signal.cc (sigwaitinfo): Lock _my_tls and try harder to clean up signal information.
* * cygtls.cc (_cygtls::reset_signal_arrived): New function.Christopher Faylor2012-07-291-53/+16
| | | | | | | | | | | | | | | (set_signal_arrived::~set_signal_arrived): Use reset_signal_arrived to reset state. * exceptions.cc (sig_handle_tty_stop): Use WAIT_SIGNALED rather than assume we know the return from cancelable_wait. (_cygtls::interrupt_setup): Modify to allow calling when executing in non-cygwin code via sigdelayed. Always reset signal_arrived. * gendef: Throughout use start_offset rather than the completely wrong sizeof__cygtls. (_sigdelayed): Rewrite to avoid duplication when calling the signal handler. (sigreturn): Delete. * gentls_offsets: Define start_offset rather than sizeof__cygtls. * tlsoffsets.h: Regenerate.
* * DevNotes: Add entry cgf-000013.Christopher Faylor2012-07-211-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * cygserver_ipc.h (ipc_set_proc_info): Use _cygtls::ipc_set_proc_info to set per-thread signal arrived value. * cygthread.cc (cygthread::detach): Use per-thread signal_arrived via set_thread_waiting. * fork.cc (_cygtls::fixup_after_fork): Clear signal_arrived. (_cygtls::remove): Close any signal_arrived handle when thread exists. (_cygtls::find_tls): Remove unneeded function. * cygtls.h: Update copyright. (class _cygtls): Reorganize to help avoid rebuilding newlib when structure changes. (_cygtls::event): Delete. (_cygtls::threadkill): Ditto. (_cygtls::signal_waiting): Declare new bool. (_cygtls::find_tls): Delete declaration. (_cygtls::set_threadkill): Ditto. (_cygtls::reset_threadkill): Ditto. (_cygtls::set_signal_arrived): Declare new function. (class set_thread_waiting): Declare new class. * cygwait.cc (cw_nowait_storage): Define. (cygwait): Set per-thread signal_arrived via set_thread_waiting. Don't special-case _main_tls. * cygwait.h (cw_nowait): Define. (cw_infinite): Ditto. (cygwait): Redefine pathological wait-only case. * dcrt0.cc (dll_crt0_0): Remove call to now-defunct events_init(). (dll_crt0_1): Remove call to now-defunct create_signal_arrived(). * exceptions.cc: Reflect set_signal_mask() argument reordering throughout. Remove signal mask synchronization throughout. (events_init): Delete definition. (mask_sync): Delete now-unneeded mask synchronization. (set_signal_mask): Reverse order of arguments to "standard" to, from layout. Rename "newmask" argument to "setmask". Remove debugging. (sig_handle_tty_stop): Use cancelable_wait rather than WFMO. (_cygtls::interrupt_setup): Don't treat "threadkill" events specially. Conditionally set signal_arrived depending on whether the thread has created it or not. (sigpacket::process): Reorganize to reflect thread-specific sending of signals which is more in line with the way it was actually supposed to work. * fhandler_socket.cc (get_inet_addr): Use cancelable_wait rather than IsEventSignalled to avoid potential race. (fhandler_socket::wait_for_events): Set signal_arrived event using set_thread_waiting(). (fhandler_socket::close): Use cygwait for the case of just waiting 10 ms for a signal. * fhandler_tape.cc (fhandler_dev_tape::_lock): Use cancelable_wait rather than WFMO. Redo switch/case tests accordingly. * fhandler_termios.cc (fhandler_termios::bg_check): Use cygwait for case of just waiting 0 ms for a potential signal. * fhandler_tty.cc (fhandler_pty_master::process_slave_output): Use cancelable_wait rather than WFSO. * fhandler_windows.cc (fhandler_windows::read): Set per-thread signal_arrived via set_thread_waiting(). * flock.cc (lf_setlock): Ditto. * select.cc (pselect): Ditto. Set per-thread signal_arrived using set_thread_waiting(). * gendef: Don't special case handling of _cygtls::sig for threads. * gentls_offsets: Use #pragma once in tlsoffsets.h. * ntdll.h: Use #pragma once. * poll.cc: Reflect set_signal_mask() argument reordering. * posix_ipc.cc (ipc_mutex_lock): Use cancelable_wait rather than WFMO. (ipc_cond_timedwait): Set perl-thread signal arrived using set_thread_waiting(). * security.h: Use #pragma once. * signal.cc (abort): Reflect set_signal_mask() argument reordering. (clock_nanosleep): Ditto. Change call to cancelable_wait to properly specify handling of cancel and interrupt. (sigwaitinfo): Remove handling of per-thread event in favor of per-thread signal_arrived. Use cancelable_wait rather than WFSO. * sigproc.cc (signal_arrived): Delete definition. (create_signal_arrived): Ditto. * sigproc.h (signal_arrived): Delete declaration. (set_signal_mask): Avoid defining as a "C" function. Don't conditionally declare. (create_signal_arrived): Delete declaration. * syscalls.cc (rename): Use cygwait() rather than WFSO. * thread.h (fast_mutex::lock): Use cw_infinite rather than LARGE_NULL. * wait.cc (wait4): Ditto. * thread.cc (pthread_mutex::lock): Ditto. (pthread::join): Ditto. (semaphore::_wait): Ditto. (pthread_kill): Remove set_threadkill() accommodation. * tlsoffsets.h: Regenerate.
* * gendef (sigdelayed): Remember to pop all of the saved registers.Christopher Faylor2011-12-161-37/+37
| | | | (sigreturn): Add "leave" label.
* * exceptions.cc (_cygtls::call_signal_handler): Fix debugging to not go toChristopher Faylor2011-12-161-0/+4
| | | | | | | | console. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Add temporary kludge to work around problem of make closing a handler while it is being read. * gendef (sigdelayed): Don't call a function if sig has been cleared. * sigproc.h (cygwait): Simplify slightly.
* * exceptions.cc (exception::handle): Drop abbreviation for "exception" since IChristopher Faylor2011-12-041-1/+0
| | | | | | | | | | | | | | | | | | | | | never remember what it stands for. (sig_handle_tty_stop): Remove obsolete call to sig_handle_tty_stop. (_cygtls::call_signal_handler): Rework to grab signal information from _main_tls if none is set for _my_tls. Try harder to keep thread locked. (reset_signal_arrived): Delete. * fhandler.cc (fhandler_base_overlapped::wait_overlapped): Use new cygWFMO call to wait for an event + standard cygwin stuff. Modify debug output to acccomodate new function. * fhandler_console.cc (fhandler_console::read): Replace WaitForMultipleObjects with cygWFMO. * fhandler_socket.cc (get_inet_addr): Add comment. * gendef (_sigdelayed): Remove call to reset_signal_arrived. * sigproc.cc (_cygtls::signal_exit): Don't close my_readsig here unless we're in the signal thread. (create_signal_arrived): Create signal_arrived as auto-reset so that only one thread is woken when a signal arrives. * sigproc.h (cygWFMO): New function. (reset_signal_arrived): Delete declaration.
* * exceptions.cc (_cygtls::interrupt_now): Revert to checking for "spinning"Christopher Faylor2010-08-011-14/+25
| | | | | | | | | | | when choosing to defer signal. (_cygtls::call_signal_handler): Grab func when we have the lock. * gendef: Update copyright. (__sigbe): Simplify slightly. (_sigdelayed): Grab a lock before manipulating stuff. (_cygtls::pop): Properly return popped value. (stabilize_sig_stack): Set incyg when we have the lock. * sigproc.cc: Update copyright.
* * gendef: Throughout, remove lock from xchgl since it is implied.Christopher Faylor2010-07-181-14/+10
| | | | | (__ZN7_cygtls3popEv): Avoid potential (but probably nonexistent) race when clearing element after pop.
* Throughout change all calls of low_priority_sleep (0) to yield ().Christopher Faylor2010-03-121-10/+5
| | | | | | | | | | * miscfuncs.cc (yield): Rename from low_priority_sleep. Remove all of the logic which called Sleep() and just use SwitchToThread. * miscfuncs.h (yield): Rename from low_priority_sleep. (SLEEP_0_STAY_LOW): Delete unused define. * shared.cc (memory_init): Move heap_init() call directly after shared memory initialization to more closely mimic long-standing program flow. * tty.cc (tty_list::terminate): Replace call to low_priority_sleep with Sleep.
* * gendef (cleanup): Rename from 'nocr'. Remove comments and trailing spaces.Christopher Faylor2009-06-281-5/+8
| | | | | * cygwin.din: Add long-needed comment describing what dll_crt0__FP11per_process demangles to.
* * speclib: Semi-revert to previous version but don't try to generateChristopher Faylor2009-04-091-8/+10
| | | | | | | well-formed import library. Instead, just extract appropriate symbols and let later libcygwin.a on link line fill in the rest of the import stuff. * gendef: Hopefully no-op modification to allow easier post-processing on symbol values.
* * gendef: Remove STABS directives.Corinna Vinschen2009-03-141-4/+0
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* * Fix copyright dates.Corinna Vinschen2008-04-011-1/+1
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* * exceptions.cc (_cygtls::handle_exceptions): Only call rtl_unwind whenChristopher Faylor2008-03-011-2/+10
| | | | | | | | exiting. Just return, don't set thread context. * gendef (_setjmp): Store %fs:0 in jmp_buf. (_sjfault): Ditto. (_ljfault): Restore %fs:0 from jmp_buf. (_longjmp): Ditto.
* * gendef (sigbe): Reset "incyg" while the stack lock is active to avoid aChristopher Faylor2007-08-091-1/+1
| | | | potential race.
* * cygheap.cc (cygheap_fixup_in_child): Don't close parent handle here. Let theChristopher Faylor2006-06-021-1/+5
| | | | | | | | | | | | | | | | | | | | caller do that. * dcrt0.cc (child_info_spawn::handle_spawn): Close parent handle here to allow fixup_after_exec functions to use it. * cygtls.cc (_cygtls::call2): Avoid calling exit thread if called with *crt0_1 functions. * cygtls.h (_cygtls::isinitialized): Check that we actually have a tls before seeing if it is initialized. * gendef (_sigfe_maybe): Ditto. * dcrt0.cc (dll_crt0_1): Remove static, use just one argument. * dll_init.cc (dllcrt0_info): New structure. (dll_dllcrt0): Change into a front-end to renamed dll_dllcrt0_1 so that we'll always be assured of having something like a tls. (dll_dllcrt0_1): New function, basically renamed from from dll_dllcrt0. Unconditionally call _my_tls.init_exception_handler now that we are assured of having a tls. Change variable name from "linking" to "linked". * winsup.h (dll_crt0_1): Declare. (dll_dllcrt0_1): Ditto.
* * cygtls.cc (_cygtls::remove): Reset initialized flag right away if we wereChristopher Faylor2006-03-131-2/+1
| | | | | | | | previously initialized. * cygtls.h (_cygtls::initialized): Move nearer the end to catch situation when Windows 98 mysteriously changes pieces of cygtls when thread is detaching. * gendef (__sigfe_maybe): Simplify slightly. * tlsoffsets.h: Regenerate.
* * cygtls.h (CYGTLS_INITIALIZED): Change to a little more unlikely value.Christopher Faylor2006-03-121-6/+21
| | | | | | | | | | | | | | | | | | | | | | | | | (CYGTLSMAGIC): Delete. * dcrt0.cc (dll_crt0_0): Call sigproc_init during init startup. (_dll_crt0): Don't worry about sync_startup. Just wait for sigthread here. * dll_init.cc (cygwin_detach_dll): Only pick up tls version of retaddr if we have a valid tls. * fork.cc (frok::child): Remove sigproc_init initialization since it happens much earlier now. * gendef: Recognize SIGFE_MAYBE. (fefunc): Generate calls to _sigfe_maybe, if appropriate. (_sigfe_maybe): New function. * init.cc (search_for): Always initialize search_for, even on fork. (calibration_thread): Delete. (calibration_id): Delete. (prime_threads): Delete. (munge_threadfunc): Remove calibration_thread special case. Avoid calling thread function if we haven't yet hit the "search_for" thread. (dll_entry): Remove prime_threads call. Only call munge_threadfunc when hwait_sig is active. Ditto. for _my_tls.remove (); * sigproc.cc (hwait_sig): Make global. (sigproc_init): Don't bother with sync_startup. (sig_send): Treat flush as a no-op when signals are held. (wait_sig): Cause signals to be held after fork.
* * analyze_sigfe: New script.Christopher Faylor2006-03-011-0/+8
| | | | | | | * dllfixdbg: Add copyright. * gendef: Ditto. * gendevices: Ditto. * gentls_offsets: Ditto.
* * cygtls.cc (_cygtls::handle_threadlist_exception): Make an error fatal.Christopher Faylor2005-12-231-5/+11
| | | | | | | | | | | | | | | | | | | | | * 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.
* Remove unneeded whitespace.Christopher Faylor2005-12-051-0/+2
| | | | | | | | | | | | | | | | | * 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.
* * fork.cc (frok::child): Change order of cleanup prior to return.Christopher Faylor2005-10-291-2/+2
| | | | | | (fork): Save more of the stack. * gendef: Fix some comments. * sigproc.cc (wait_sig): Clarify debug output.
* * cygtls.h (__ljfault): Declare.Christopher Faylor2005-08-281-2/+67
| | | | | | | | (_cygtls::return_from_fault): Use __ljfault. * exceptions.cc (set_signal_mask): Revert previous checkin. * gendef (__sjfault): Split out into a separate function which doesn't bother with any special signal locking. routines. (_ljfault): Return from a __sjfault without bothering with signals.
* * gendef: Use nocr to remove \r's from input. gendef (nocr): New function.Christopher Faylor2005-07-271-3/+8
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* Replace valid memory checks with new myfault class "exception handling", almostChristopher Faylor2005-07-031-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | everywhere. Leave some thread.cc stuff alone for now. * cygtls.h: Kludge some definitions to avoid including a problematic windows header. (_cygtls::_myfault): New entry. (_cygtls::_myfault_errno): Ditto. (_cygtls::fault_guarded): New function. (_cygtls::setup_fault): Ditto. (_cygtls::return_from_fault): Ditto. (_cygtls::clear_fault): Ditto. (myfault): New class. * exceptions.cc (handle_exceptions): Handle case of guarded fault in system routine. * gendef: Add another entry point for setjmp that the compiler doesn't know about and won't complain about. * gentls_offsets: Just include windows.h rather than kludging a HANDLE def. * miscfuncs.cc (check_null_str): Delete. (check_null_empty_str): Ditto. (check_null_empty_str_errno): Ditto. (check_null_str_errno): Ditto. (__check_null_invalid_struct): Ditto. (__check_null_invalid_struct_errno): Ditto. (__check_invalid_read_ptr): Ditto. (__check_invalid_read_ptr_errno): Ditto. (dummytest): New function. (check_iovec_for_read): Delete. (chec_iovec): Rename from check_iovec_for_write. Take a read/write parameter. * tlsoffsets.h: Regenerate. * winsup.h: Remove check_* declarations. (check_iovec_for_read): Delete declaration. Turn into a define instead. (check_iovec_for_write): Ditto. (check_iovec): New declaration. * thread.h: Use ifdef guard name consistent with other header files.
* * cygtls.h (waitq): Declare structure here.Christopher Faylor2004-03-121-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | (_cygtls::wq): Declare. * cygtls.cc (_cygtls::fixup_after_fork): Clear wq.thread_ev to avoid using an invalid event handle in forked process. * dcrt0.cc (waitq_storage): Delete. (threadstuff): Remove waitq_storage. * perthread.h (per_thread_waitq): Delete. (waitq_storage): Delete declaration. * sigproc.cc (sigproc_init): Remove perthread waitq consideration. * sigproc.h (waitq): Delete declaration. * wait.cc (wait4): Use _my_tls waitq structure rather than per_thread. * cygtls.h (_cygtls::newmask): Delete member. (_cygtls::deltamask): New member. * gendef (_sigdelayed): Replace the call to set_process_mask by a call to set_process_mask_delta. * exceptions.cc (handle_sigsuspend): Do not filter tempmask. Or SIG_NONMASKABLE in deltamask as a flag. (_cygtls::interrupt_setup): Set deltamask only. (set_process_mask_delta): New function. (_cygtls::call_signal_handler): Replace the first call to set_process_mask by a call to set_process_mask_delta. * tlsoffsets.h: Regenerate.
* * cygtls.cc (_cygtls::fixup_after_fork): Remove unneeded setting of oldmask.Christopher Faylor2004-03-121-46/+46
| | | | | | | | | | | | | | | | | | * exceptions.cc: Remove some __I386__ conditionals. (handle_exceptions): Move ppid test to outside of a loop for efficiency. (setup_handler): Make debugging output more wordy. (_cygtls::call_signal_handler): To avoid a race, use lock/unlock to synchronize with signal thread and ensure that signal_arrived event has actually been set. * gendef (_sigfe): Use ebx for all sigstack manipulations to ensure that the register is saved. Move setting of incyg to within stack lock to avoid setup_handler confusion. (_sigbe): Use ebx for all sigstack manipulations to ensure that the register is saved. (_cygtls::pop): Ditto. (_cygtls::lock): Ditto. (stabilize_sig_stack): Ditto. (setjmp): Ditto. (longjmp): Ditto.
* * exceptions.cc (setup_handler): Avoid suspending a thread if it in a cygwinChristopher Faylor2004-03-091-14/+20
| | | | | | | | | | | function, in an exception, spinning, or locked. * gendef (_sigfe): Move incyg setting earlier. (sigreturn): Set incyg flag to avoid interrupting called cygwin functions. (sigdelayed): Ditto. (stabilize_sig_stack): Ditto. * sigproc.cc (proc_subproc): Don't restore process lock early in exec case. * cygtls.h: Reorganize fields in _cygtls slightly. * tlsoffsets.h: Regenerate.
* * fork.cc (fork_parent): Save parent pid in a temporary variable since childChristopher Faylor2004-03-071-6/+8
| | | | | | | | | | | | | | | | | could conceivably exit before function returns, rendering the child's shared memory area invalid. * cygtls.h (_cygtls::incyg): Declare new field. (_cygtls::in_exception): Define new function. * exceptions.cc (setup_handler): Remove locked flag. Use 'incyg' flag and in_exception function to determine when we're in a cygwin function. (_cygtls::call_signal_handler): Decrement incyg flag prior to calling a handler. Increment it on return. * gendef (_sigfe): Increment incyg flag. Use testl for zero testing rather than orl, for consistency. (_sigbe): Decrement incyg flag. Use testl for zero testing rather than orl, for consistency. (_cygtls::pop): Use testl for zero testing rather than orl, for consistency. (stabilize_sig_stack): Ditto.
* * gendef (sigdelayed): Handle return here rather than going through sigbe toChristopher Faylor2004-03-051-56/+67
| | | | ensure that flags are properly restored.
* * gendef (sigreturn): Call stabilize_sig_stack to ensure that there are noChristopher Faylor2004-03-041-34/+32
| | | | | | pending signals. Restore edx later. (sigdelayed): Save edx earlier. * malloc_wrapper.cc (malloc_init): Add some more debugging output.
* * gendef (stabilize_sig_stack): Correctly align this pointer for call toChristopher Faylor2004-02-251-2/+3
| | | | | | _cygtls::call_signal_handler. * gentls_offsets: Output sizeof field. * tlsoffsets.h: Regenerate.
* * gendef (stabilize_sig_stack): New function.Christopher Faylor2004-02-181-6/+55
| | | | | | (setjmp): Import, add sig stack handling. Store sig stack info. (longjmp): Call stabilize_sig_stack. Restore sig stack info. * config/i386/setjmp.c: Remove.
* * dcrt0.cc (alloc_stack_hard_way): Revert to previous implementation.Christopher Faylor2004-02-141-1/+0
| | | | | (alloc_stack): Ditto. * exceptions.cc (ctrl_c_handler): Add debugging output.
* * Makefile.in (clean): Remove sigfe.s.Christopher Faylor2004-02-131-2/+3
| | | | | | | | | | | | | | | | | | | | | | | (sigfe.s): Ensure that sigfe.s will be regenerated if it does not exist. * dll_init.cc (dll_dllcrt0): Simplify initializing tests. * exceptions.cc (setup_handler): Detect when stub caller is either spinning or has acquired the lock after being suspended to avoid windows problems with suspending a win32 API call. * cygtls.h (_cygtls::spinning): Declare new element. * gendef: Remove unused _siglist_index and _siglist declaration. (_sigfe): Set spinning element when potentially looping, waiting for lock. (_sigbe): Ditto. (_cygtls::lock): Ditto. (_longjmp): Ditto. * tlsoffsets.h: Regenerate. * pinfo.cc (_pinfo::exit): Set final exit state here. Call sigproc_terminate if invoked with 'norecord'. Clear any residual _cygtls stuff. * winsup.h (exit_states): Define ES_FINAL. * spawn.cc (spawn_guts): Don't call proc_terminate specifically when execing. Let _pinfo::exit handle that case. * sigproc.cc (wait_subproc): Always exit loop early when proc_loop_wait. * init.cc (munge_threadfunc): Eliminate unused argument. (dll_entry): Reflect above change in call to munge_threadfunc.
* * gendef (_sigbe): Zero location on pop.Christopher Faylor2004-02-121-4/+2
| | | | (_cygtls::pop): Ditto.
* Rename _threadinfo to _cygtls, throughout.Christopher Faylor2004-02-121-55/+76
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * cygtls.h (_cygtls::call_signal_handler): Rename from call_signal_handler_now. (_cygtls::push): Make second argument mandatory. (_cygtls::fixup_after_fork): Declare new function. (_cygtls::lock): Ditto. * cygtls.cc (_cygtls::fixup_after_fork): Define new function. * dcrt0.cc (cygwin_finished_initializing): Define as bool. (alloc_stack): Use _tlstop rather than arbitrary variable in probably vain attempt to avoid strange fork problem on CTRL-C. (dll_crt0_0): Remove obsolete winpids::init call. * dll_init.cc (dll_dllcrt0): Detect forkee condition as equivalent to initializing. * winsup.h (cygwin_finished_initializing): Declare as bool. * exceptions.cc (handle_exceptions): Rely on cygwin_finished_initializing to determine how to handle exception during process startup. (_cygtls::call_signal_handler): Rename from call_signal_handler_now. (_cygtls::interrupt_now): Fill in second argument to push. (signal_fixup_after_fork): Eliminate. (setup_handler): Initialize locked to avoid potential inappropriate unlock. Resume thread if it has acquired the stack lock. (ctrl_c_handler): Just exit if ctrl-c is hit before cygiwn has finished initializing. * fork.cc (sync_with_child): Don't call abort since it can cause exit deadlocks. (sync_with_child): Change debugging output slightly. (fork_child): Set cygwin_finished_initializing here. Call _cygtls fork fixup and explicitly call sigproc_init. (fork_parent): Release malloc lock on fork failure. (vfork): Call signal handler via _my_tls. * sigproc.cc (sig_send): Ditto. * syscalls.cc (readv): Ditto. * termios.cc (tcsetattr): Ditto. * wait.cc (wait4): Ditto. * signal.cc (nanosleep): Ditto. (abort): Ditto. (kill_pgrp): Avoid killing self if exiting. * sync.cc (muto::acquire): Remove (temporarily?) ill-advised exiting_thread check. * gendef (_sigfe): Be more agressive in protecting stack pointer from other access by signal thread. (_cygtls::locked): Define new function. (_sigbe): Ditto. (_cygtls::pop): Protect edx. (_cygtls::lock): Use guaranteed method to set eax to 1. (longjmp): Aggressively protect signal stack. * miscfuncs.cc (low_priority_sleep): Reduce "sleep time" for secs == 0. * pinfo.cc (winpids::set): Counterintuitively use malloc's lock to protect simultaneous access to the pids list since there are pathological conditions which can cause malloc to call winpid. (winpids::init): Eliminate. * pinfo.h (winpids::cs): Eliminate declaration. * pinfo.h (winpids::init): Eliminate definition.
* * debug.h (console_printf): Define for non-debugging condition.Christopher Faylor2004-02-091-14/+15
| | | | | | | | | | | | | | * cygtls.h (_threadinfo::lock): Remove wait argument. (_threadinfo::interrupt_setup): Remove retaddr argument. * exceptions.cc (_threadinfo::interrupt_setup): Ditto. (_threadinfo::interrupt_now): Accommodate change to interrupt_setup argument. (setup_handler): Ditto. Always lock sig stack prior to determining interrupt method. * gendef (_sigfe): Correct thinko regarding cmpxchg. (_sigbe): Ditto. (_threadinfo::lock): Ditto. (_threadinfo::pop): Eliminate left-over stack unlock. * sigproc.cc (proc_subproc): Chnage debugging output to printed warning.
* * localtime.cc (localtime_r): Call tzset.Christopher Faylor2004-02-081-19/+59
| | | | | | | | | | | | | | | | | | | | | | * Makefile.in: Make version.h/cygwin.din version check a warning since it is not foolproof. * cygheap.h (CYGHEAPSIZE): Bump size down. * cygtls.h (_threadinfo::stacklock): New element. (_threadinfo::pop): Make regparm. (_threadinfo::lock): New function. (_threadinfo::unlock): New function. * cygtls.cc (_threadinfo::push): Wait for a lock on the stack before performing the operation. (_threadinfo::pop): Move to another file. * cygwin.din: More SIGFE changes. * exceptions.cc (try_to_debug): Always display messages on console. (handle_exceptions): Unwind stack only when actually about to call sig_send. (setup_handler): Lock stack prior to performing any operations. * gendef (_sigfe): Ditto. (_sigbe): Ditto. (_threadinfo::pop): Ditto. Move here. * gen_tlsoffsets: Generate positive offsets. * tlsoffsets.h: Regenerate.
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