* cygwin/include/signal.h: Add copyright notice.

* cygwin.din: Make clock SIGFE.  Add clock_gettime, sigwaitinfo, timer_create,
timer_delete, timer_settime.
* include/cygwin/version.h: Reflect above additions.
* fork.cc (fork_child): Call fixup_timers_after_fork.
* signal.cc (sigwait): Remove unused variable.
* timer.cc: New file.
(clock_gettime): Define new function.
(timer_tracker): Define new struct used by timer functions.
(timer_tracker::timer_tracker): New function.
(to_us): New function.
(timer_thread): New function.
(timer_tracker::settime): New function.
(timer_create): New function.
(timer_settime): New function.
(timer_delete): New function.
(fixup_timers_after_fork): New function.
* cygthread.cc: Bump thread count.
* signal.cc (sigwaitinfo): Define new function.
(sigwait): Redefine based on sigwaitinfo.
* include/cygwin/signal.h (sigwaitinfo): Declare.
(sigwait): Ditto.
* dtable.cc (dtable::vfork_parent_restore): Avoid double close of ctty when
ctty == ctty_on_hold.
* cygtls.h (_threadinfo::threadkill): New element.
(_threadinfo::set_threadkill): Declare new function.
(_threadinfo::reset_threadkill): Declare new function.
* dcrt0.cc (dcrt0_1): Call here so that it will be possible to attach to
running process with #(*& Windows Me/9x.
(initial_env): Try to initialize strace if uninitialized.
* gendef: Don't zero signal if threadkill is set since that will happen in the
called function.
* signal.cc (sigwait): Ensure cleanup in error conditions.
* sigproc.cc (sig_send): Clear packet mask storage.
(wait_subproc): Fill in child exit code in siginfo_t structure.
* thread.cc (pthread_kill): Set threadkill flag.
* tlsoffsets.h: Regenerate.  Throughout, use siginfo_t to fill out all signal
information for "kernel" signals.
* cygtls.h (_threadinfo::set_siginfo): Declare new function.
* cygtls.cc (_threadinfo::set_siginfo): Define new function.
* dcrt0.cc (do_exit): Accommodate siginfo_t considerations.
* exceptions.cc (handle_exceptions): Ditto.
(sig_handle_tty_stop): Ditto.
(ctrl_c_handler): Use killsys() to send signal.
(sigpacket::process): Rename from sig_handle.  Use siginfo_t field from
sigpacket for everything.
(tty_min::kill_pgrp): Accommodate siginfo_t considerations.
(fhandler_termios::bg_check): Ditto.
* fhandler_tty.cc (fhandler_tty_slave::ioctl): Use killsys() to send signal.
* signal.cc (kill_worker): Rewrite to use siginfo_t second argument.
(kill_pgrp): Ditto.
(kill0): Define new function pulled from kill().
(kill): Rewrite as frontend to kill0.
(killsys): Define new function.
* sigproc.cc (sigelem): Eliminate.
(sigpacket): Move to sigproc.h.  Subsume sigelem.
(pending_signals): Use sigpacket rather than sigelem for everything.
(sig_clear): Ditto.
(wait_sig): Ditto.
(sig_send): Rewrite to use siginfo_t argument.
(sig_send): New function wratpper to sig_send with siginfo_t argument.
(wait_subproc): Accommodate siginfo_t considerations.
* thread.cc (pthread_kill): Ditto.
* sigproc.h (sigpacket): Move here.
(sigpacket::process): Declare "new" function.
(sig_handle): Eliminate declaration.
(sig_send): Declare with new paramaters.
(killsys): Declare new function.
(kill_pgrp): Declare.
* winsup.h: Move some signal-specific stuff to sigproc.h.
* include/cygwin/signal.h: Tweak some siginfo_t stuff.

1 files changed, 5 insertions, 1 deletions

diff --git a/winsup/cygwin/cygtls.h b/winsup/cygwin/cygtls.h
index 779e42b89..0fa1b1b4c 100644
--- a/winsup/cygwin/cygtls.h
+++ b/winsup/cygwin/cygtls.h
@@ -102,6 +102,7 @@ struct _threadinfo
   sigset_t sigmask;
   sigset_t sigwait_mask;
   siginfo_t *sigwait_info;
+  unsigned threadkill;
   siginfo_t infodata;
   struct pthread *tid;
   struct _reent local_clib;
@@ -120,7 +121,7 @@ struct _threadinfo
   static void call2 (DWORD (*) (void *, void *), void *, void *) __attribute__ ((regparm (3)));
   static struct _threadinfo *find_tls (int sig);
   void remove (DWORD);
-  void push (__stack_t, bool = false);
+  void push (__stack_t, bool = false) __attribute__ ((regparm (3)));
   __stack_t pop ();
   bool isinitialized () {return initialized == CYGTLS_INITIALIZED || initialized == CYGTLS_EXCEPTION;}
   void set_state (bool);
@@ -131,6 +132,9 @@ struct _threadinfo
     __attribute__((regparm(3)));
   void init_threadlist_exceptions (struct _exception_list *);
   operator HANDLE () const {return tid->win32_obj_id;}
+  void set_siginfo (struct sigpacket *) __attribute__ ((regparm (3)));
+  void set_threadkill () {threadkill = true;}
+  void reset_threadkill () {threadkill = false;}
   /*gentls_offsets*/
 };
 #pragma pack(pop)