(EXITCODE_NOSET): Ditto.
* sigproc.cc (no_signals_available): Remove check for hwait_sig. Just rely on
my_sendsig. Pass in an argument controlling when it is appropriate to test
EXITCODE_SET.
(proc_can_be_signalled): Remove checks for myself since this function is never
called in that context.
(sigproc_init): Pre-initialize my_sendsig to non-zero so that
proc_can_be_signalled will know that we expect to be signalable soon.
(sig_send): Change debugging output.
signal thread.
(wait_sig): Correct so that WaitForSingleObject is called when hMainThread is
!= 0, rather than the reverse.
* cygheap.cc (cygheap_fixup_in_child): Clarify potential error message.
* fork.cc (fork_copy): Cosmetic change.
called, since that is the intent of sending a __SIGEXIT. Wait forever for main
thread to go away since, presumably, the main thread told us it was going away.
(av::av): Remove reference to error.
(av::replace0_maybe): Ditto.
(av::dup_maybe): Ditto.
(av::dup_all): Ditto.
(av::unshift): Ditto.
(spawn_guts): On a fault, return E2BIG only if ENOMEM has been set. Otherwise
return EFAULT.
(cygtls::andreas): New element. Replaces _myfault and _myfault_errno.
(cygtls::fault_guarded): Use andreas.
(cygtls::return_from_fault): Ditto.
(cygtls::setup_fault): Add a parameter denoting where to store old fault
handler, if any and use it to "stack" faults.
(cygtls::reset_fault): Restore fault from parameter.
(myfault::sebastian): New variable.
(myfault::~myfault): Pass sebastian to reset_fault.
(myfault::myfault): Store old fault values in sebastian.
(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.
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.
heap. Change fatal error to avoid confusion with cygheap.
* spawn.cc (linebuf::finish): New function.
(linebuf::add): Cosmetic change.
(spawn_guts): Only avoid building windows command line if the program being
executed was actually mounted with -X. Don't return E2BIG if we hit the 32K
size and we're executing a detected cygwin program. Just silently truncate the
windows command line, instead.
warning.
* path.h (path_conv::set_cygexec): New function.
* spawn.cc (av::iscygwin): Eliminate.
(av::av): Don't initialize iscygwin.
(spawn_guts): Just use real_path.iscygexec for all tests.
(av::fixup): Short circuit test if .exe extension and known cygexec. Set
cygexec flag appropriately if we find that program uses cygwin1.dll.
(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".
* fork.cc (fork_parent): Don't issue errors if "somebody" has set the
PID_EXITED flag on a child. Don't close process handle if it has potentially
already been closed.
* pinfo.cc (winpids::add): Eliminate PID_ALLPIDS handling which was obsoleted
by previous changes.
* spawn.cc (av::fixup): Do win16 detection for .com files. Make sure that
buffer has been unmapped in all cases.
(_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.
intact throughout.
(normalize_win32_path): Revert to only checking for slash.
(realpath): Convert drive letters to cygdrive paths before
doing anything else.
* shared_info.h (mount_info::cygdrive_posix_path): Make public.
in favor of calling path_conv with PC_POSIX flag. Align error
handling closer to POSIX. As on Linux, return user space allocated
memory if second parameter is NULL.
thread.
(sigpacket:process): Simplify logic which determines when and how a signal is
masked. Don't trigger sigwait if there is a signal handler.
* sigproc.cc (wait_sig): Update comment. Try to process a signal which is in
the queue if it isn't queued for the target thread (this is still not right).
directory if /dev doesn't actually exist.
(win32_device_name): Don't consider FH_DEV to be a device since it's really a
directory which should go through mount processing.
* fhandler_proc.cc: Use cygheap rather than user heap for allocation of filebuf
throughout.
* fhandler_registry.cc: Ditto.
* fhandler_virtual.cc: Ditto.
* fhandler_process.cc: Ditto.
(get_mem_values): Use malloc/realloc/free rather than new.
* pinfo.cc (_pinfo::commune_send): Allocate on cygwin heap rather than user
heap. Avoid calling ReadFile when correct number of characters have been read
or suffer buffer corruption.
(_pinfo::fd): Allocate on cygwin heap rather than user heap.
(_pinfo::fds): Ditto.
(_pinfo::root): Ditto.
(_pinfo::cwd): Ditto.
(_pinfo::cmdline): Ditto.
* devices.h (FH_DEV): New define.
* devices.in: Detect lone /dev.
* devices.cc: Regenerate.
* path.cc (path_conv::check): Treat FH_DEV as a special case.
by reference.
* signal.cc (abort): Accommodate change to set_signal_mask.
* select.cc (pselect): Ditto.
* exceptions.cc (handle_sigsuspend): Ditto.
(ctrl_c_handler): Ditto.
(sighold): Ditto.
(sigrelse): Ditto.
(set_process_mask_delta): Ditto.
(_cygtls::call_signal_handler): Ditto.
* fhandler_disk_file.cc (fhandler_disk_file::readdir): Return ENMFILE if
__handle is not set. Set __handle to NULL when out of files.
(fhandler_disk_file::rewinddir): Don't close handle if it's NULL.
(fhandler_disk_file::closedir): Ditto.
dirent_saw_dev.
* dir.cc (opendir): Don't zero __flags here. Push that responsibility to
opendir methods.
(seekdir): Preserve dirent_isrrot in __flags.
(rewinddir): Ditto.
* fhandler_disk_file.cc (fhandler_disk_file::opendir): Set dirent_isroot
appropriately.
(fhandler_disk_file::readdir): Fill in "cygdrive" and "dev" if it is the root
dir and they are missing.
* fhandler_process.cc (fhandler_process::opendir): Set __flags here.
* fhandler_virtual.cc (fhandler_virtual::opendir): Set __flags here.
(fhandler_tty_slave::lseek): Delete old method.
(fhandler_tty_master::lseek): Delete old method.
* fhandler_tty.cc (fhandler_tty_common::lseek): Define new method.
* fhandler_tty.cc (fhandler_tty_common::close): Rearrange the code so that the
master end of the input and output pipes is closed before signalling an EOF
event to the slave.
(fhandler_pty_master::close): Likewise.
"noreturn" attribute. Add additional check if parent process is
actually a 64 bit process.
(dll_entry): Only test WOW64 processes with a stack in the usual
"dangerous" process space area.
(child_info::child_info()): New constructor.
(child_info_spawn::child_info_spawn()): Ditto.
(child_info_spawn::operator new): New operator.
(child_info_spawn::set): New function.
* spawn.cc (av()): New constructor.
(av::operator new): New operator.
(av::set): New function.
(spawn_guts): Reorganize so that classes which allocates are defined early in
the function so that it can be properly cleaned up after an efault. Set errno
to E2BIG in the event of a SEGV situation.
* dllfixdbg: Just copy .stab and .stabstr sections when making cygwin1.dbg,
rather than relying on objcopy to keep only the debug sections since objcopy
seems to get it wrong.
* dtable.cc (build_fh_pc): Check setting fh to fhandler_nodevice for NULL, too.
* cygheap.cc (cmalloc): Only emit system_printf warnings on failure if
DEBUGGING.
(crealloc): Ditto.
(ccalloc): Ditto.
* dtable.cc (build_fh_name): Treat NULL return from cnew as indicative of
EMFILE condition.
(build_fh_dev): Ditto.
(dtable::dup_worker): Handle NULL return from build_fh_pc.
(dtable::vfork_child_dup): Trust dup_worker to set errno.
* fhandler.h (fhandler_base::new): Mark as nothrow.
linux.
* include/cygwin/types.h: Include endian.h.
* include/sys/dirent.h: Define DT_* types and conversion macros.
* pinfo.cc (pinfo::init): Remove special handling for PID_ALLPIDS and execed
code, even though it probably still isn't quite right.
* fhandler.h (class fhandler_serial): Declare switch_modem_lines.
* fhandler_serial.cc (fhandler_serial::switch_modem_lines): New
static function to set or clear DTR and/or RTS.
(fhandler_serial::ioctl): Use switch_modem_lines for TIOCMSET
and new TIOCMBIS and TIOCMBIC.
* include/cygwin/version.h: Bump API minor number.
(child_info::child_info): Accept an argument controlling whether to create
proc_subproc.
(child_info_spawn::child_info_spawn): Ditto.
* sigproc.cc (child_info::child_info): Ditto.
(child_info_spawn::child_info_spawn): Ditto.
(child_info::sync): Use passed in pid and HANDLE.
* fork.cc (fork_parent): Reflect additional arguments required for
child_info::sync.
* hookapi.cc (hook_or_detect_cygwin): Rename. Change so that NULL 'fn'
argument just returns "true", indicating that program uses cygwin1.dll.
* spawn.cc (av::win16_exe): New element.
* spawn.cc (av::iscygwin): New element.
(av::fixup): New function.
(spawn_guts): Protect against SEGV. Use fixup function to detect when it is
safe to wait for a spawned (as opposed to an execed) program. Reflect changes
in child_info::sync arguments.
* external.cc (cygwin_internal): Reflect function renaming to
hook_or_detect_cygwin.
* cygheap.cc (cygheap_fixup_in_child): Close handle after debug fixup has been
done to prevent false positives in handle collision.
* exceptions.cc (try_to_debug): Notify debugger if already being debugged.
(getdelim): Export.
* include/sys/stdio.h (getline): Replace macro with function prototype.
(getdelim): Likewise.
* include/cygwin/version.h: Bump API minor number.
(__getdelim): Export.
* include/sys/stdio.h (getline): Define as __getline.
(getdelim): Define as __getdelim.
* include/cygwin/version.h: Bump API minor number.
Christopher Faylor
Corinna Vinschen