* exceptions.cc (sfta): Eliminate obsolete function.
(sgmb): Eliminate obsolete function.
(class stack_info): Remove MS method for walking the stack.
(stack_info::init): Just initialize required fields.
(stack_info::brute_force): Rename to stack_info::walk.
(handle_exceptions): Pass derived frame pointer to sig_send.
(interrupt_setup): Clear saved frame pointer here.
(interrupt_on_return): thestack is no longer a pointer.
(call_handler): Accept a flag to indicate when a signal was sent from other
than the main thread. Use saved frame pointer for determining where to place
signal handler call.
(sig_handle): Accept "nonmain" argument. Pass it to call_handler.
* fhandler_tty.cc (fhandler_tty_common::__acquire_output_mutex): Change
debugging output slightly.
* (fhandler_tty_common::__release_output_mutex): Ditto.
(fhandler_tty_slave::read): Fix a comment, remove a goto.
* sigproc.cc (sig_send): Accept an optional frame pointer argument for use when
suspending the main process. sigcomplete_main is an autoreset event now. Save
frame pointer for non-main operation.
(wait_sig): Make sigcomplete_main an autoreset event. Eliminate NOSIGQUEUE.
Pass rc to sig_handle to signify if this was a nonmain process.
* sigproc.h: Reflect change to sig_send argument.
* syscalls.cc (swab): Eliminate swab function since it is now available in
newlib.
* winsup.h (signal_dispatch): Change CONTEXT cx to DWORD ebp.
(CHEWOUT_FILES): Added getw.def and putw.def.
* libc/stdio/Makefile.in: Rebuilt.
* libc/stdio/stdio.tex: Include getw.def and putw.def.
* libc/stdio/getw.c: New file.
* libc/stdio/putw.c: New file.
Patches from Jan Nijtmans <j.nijtmans@chello.nl>:
* include/wtypes.h (PBLOB, LPBLOB): Define.
* include/winsock2.h: Much more complete version.
(FD_SET, SOMAXCONN): Protect common macros defined by winsock.h.
* include/winbase.h (TLS_MINIMUM_AVAILABLE): Move macro from here
* include/winnt.h (TLS_MINIMUM_AVAILABLE): to here.
(NT_TIB): Define.
* include/tlhelp32.h: New file.
(getprogname): Eliminate obsolete function.
(dll_crt0_1): Move initial strace initialization output to set_myself.
* exceptions.cc (interruptible): Add debugging output.
(interrupt_setup): New function.
(interrupt_now): Use interrupt_setup to set up common interrupt handler stuff.
(interrupt_on_return): Ditto.
(call_handler): Move signal_arrived arm and clear threads to region where
signalled thread is suspended or suffer races.
* pinfo.cc (set_myself): Output interesting information when strace is first
initialized. Initialize progname here.
* sigproc.cc (sig_dispatch_pending): Modify to ensure that flush signal are
sent synchronously.
* strace.cc (strace_vsprintf): Move code into strace program.
* uname.cc (uname): Use 'osname' global to construct cygwin name + Windows type
+ version.
(call_handler): Allow signals to be sent even if signalled thread is stopped.
Change order of signal_arrived arming/waiting threads clearing to eliminate a
race.
(reset_signal_arrived): New helper function.
* malloc.cc (malloc_init): Use mutos so that signal handler can keep track of
who owns the lock.
(__malloc_lock): Ditto.
(__malloc_unlock): Ditto.
* sync.h (new_muto): Actually use a muto for the "buffer".
* Makefile.in: Fix a dependency.
the errors exposed by this addition. These were intel mode
"fi... word ptr", "fi... dword ptr", "jmp Imm seg, Imm offset", "out dx,al".
The failure with intel "out dx,al" was also present in att "out al,dx".
Extend testsuite to catch this case too.
* debug.cc (iscygthread): New function.
* debug.h: Declare it.
* exceptions.cc (set_process_mask): Flush pending signals.
(handle_sigsuspend): No need to flush pending signals.
(call_handler): Refine previous tests of muto ownership. Only clear wait()'s
when we have definitely responded to a signal.
* fhandler_console.cc (fhandler_console::read): Don't set EINTR if executing in
a "cygwin" thread.
* sigproc.cc (proc_subproc): Use second argument to control whether CLEARWAIT
actually sets "signalled" flag.
* sync.h (muto): Add 'unstable' method.
Christopher Faylor
Jeff Johnston
Alexandre Oliva
Nick Clifton
Andrew Cagney
H.J. Lu
Mumit Khan
Ian Lance Taylor
DJ Delorie
Alan Modra
Andrew Haley
Ranjith Kumaran