newlib doesn't install cleanup handlers. Explain the problem.
(class __cygwin_lock_handler): New class.
(__cygwin_lock_cleanup): New function.
(__cygwin_lock_lock): Push __cygwin_lock_cleanup thread cleanup
handler.
(__cygwin_lock_trylock): Ditto.
(__cygwin_lock_unlock): Pop thread cleanup handler.
(pthread::pop_cleanup_handler): Temporarily allow cleanup function to
destroy cleanup handler so we can pop in another function than we
pushed in.
to PTHREAD_CANCEL_DISABLE from here...
(pthread::pop_all_cleanup_handlers): ...to here, otherwise any explicit
call to pthread_cleanup_pop disables cancellation for this thread.
* devices.cc: Regenerate.
* dtable.cc (fh_alloc): Don't forget FH_KMEM.
* fhandler_mem.cc (fhandler_dev_mem::open): Set errno to EACCES rather
than ENOENT on systems not granting access to physical memory from
user space.
* child_info.h (child_info_spawn::parent_winpid): Declare new field.
(child_info_spawn::get_parent_handle): Declare new function.
* dcrt0.cc (child_info_spawn::get_parent_handle): Define new function.
(child_info_spawn::handle_spawn): Recreate parent handle if possible when
dynamically loaded. Don't mess with parent handle if it's NULL.
* spawn.cc (child_info_spawn::worker): Set parent_winpid appropriately.
* fhandler.h (PIPE_ADD_PID): Redefine to something we actually DON'T use.
* pipe.cc (fhandler_pipe::create): Avoid clearing all open_mode bits when
checking for PIPE_ADD_PID. Properly keep track of len so that passed in name
is not overwritten.
* pinfo.cc (pinfo::init): Reuse shared memory if the state is marked with
PID_REAPED.
* spawn.cc (child_info_spawn::worker): Don't duplicate myself_pinfo into
non-cygwin child.
* fork.cc (frok::parent): Improve error output.
* cygheap.h (init_cygheap::pid_handle): Delete.
* dcrt0.cc (child_info_spawn::handle_spawn): Keep parent open if we have
execed.
* pinfo.cc (pinfo::thisproc): Remove pid_handle manipulations.
(pinfo::init): Don't consider a reaped process to be available.
* spawn.cc (child_info_spawn::worker): Remove pid_handle manipulations. Make
wr_proc_pipe and parent noninheritable when starting a program which doesn't
use the Cygwin DLL. Conditionally reset wr_proc_pipe to inheritable if
CreateProcess fails. Inject wr_proc_pipe handle into non-Cygwin process.
Consider a non-cygwin process to be 'synced'.
* fhandler_tty.cc (bytes_available): Revert to previous Oct-2011 behavior where
a dummy buffer is used to determine how many bytes will be read.
(fhandler_pty_master::ioctl): Correct coercion in assignment.
systems. Change comment acordingly.
* wincap.h (wincaps::has_gaa_largeaddress_bug): New element.
* wincap.cc: Implement above element throughout.
(wincap_8): New globale wincaps to support Windows 8.
(wincapc::init): Take Windows 8 into account. Set new
has_gaa_largeaddress_bug member to false on 32 bit systems.
* sigproc.cc (proc_terminate): Don't set parent pid of child to 1 if we've
execed since the execed process is still considered the parent.
* child_info.h: Bump copyright.
* pipe.cc (fhandler_pipe::create): Don't indiscriminately add process id to
every pipe since some pipe names (fifo, tty) don't need it.
* sigproc.cc (sigproc_init): Pass PIPE_ADD_PID to fhandler_pipe::create to
ensure that pid is always part of sigwait pipe name.
* globals.cc (pipe_byte): Declare.
* pipe.cc (fhandler_pipe::create): Use current process id in pipe name rather
than pid for simple name collision avoidance. Do this only once to avoid extra
overhead when a busy pipe is found. Honor pipe_byte to create non-message
pipes if set.
* sigproc.cc (sigproc_init): Use a specific name for the signal pipe.
(faq.programming.win32-api): -mwindows does include -lcomdlg32.
(faq.programming.win32-no-cygwin): Update for removal of -mno-cygwin.
* overview2.sgml (ov-ex-win): Ditto.
on-disk device and we were stating it.
* path.cc (path_conv::check): Set PATH_KEPT_HANDLE.
* path.h (path_types): Add PATH_KEPT_HANDLE.
(path_conv::kept_handle): Implement.
* dtable.cc (dtable::fixup_after_exec): Specifically reject releasing
nohandle() type fhandlers rather than relying on contents of io_handle.
(dtable::fixup_after_fork): Ditto.
* fhandler_termios.cc: Add includes necessary for definitions of have_execed
and have_execed_cygwin.
(fhandler_termios::sigflush): Don't flush console input when we've started a
non-Cygwin process.
* devices.in (exists_console): Use fhandler_console::exists () rather than raw
test.
* devices.cc: Regenerate.
* fhandler.h (fhandler_console::exists): Define new function.
* fhandler_console.cc (fhandler_console::need_invisible): Use
fhandler_console::exists () rather than raw test.
* spawn.cc: Rename assitant to assistant throughout.
(child_info_spawn::worker): Simplify test for when to start a non-Cygwin
process in its own process group. Just do it whenever we start a non-Cygwin
process.
ENOENT if non-existent file got opened for reading only. Explain why.
* path.cc (path_conv::check): Stick to ENOENT if file has been opened
for informational purposes only. Add to comment.
(getpass): Rework to use /dev/tty in the first place. Install
_getpass_close_fd as pthread cleanup handler. Flush prompt explicitely.
Lock input and switch off signal input handling when reading password.
(dev_on_fs): Set bit size.
(is_dev_resident): Define new method.
* devices.in: Use different method for labelling requested name for dev
storage: prefix it with a ='. Use an actual ':' to denote an internal device.
(exists_console): Avoid repeated test.
(exists_ntdev_silent): Rename from the less-descriptive exists_ntdevs.
(dev_dev_storage): Delete unneeded define.
* gendevices: Add a flag to each line denoting whether the device lives in /dev
space.
(generate): Handle special ":" case here for internal devices. Parse
=something_dev as requiring a storage location. Tack the rest of the line back
onto the reformulated "$rest".
* devices.cc: Regenerate.
* fhandler_dev.cc (fhandler_dev::readdir): Set st_ino to device number.
* syscalls.cc (fhandler_base::stat_fixup): Ditto. Fix link count for
CD-ROM devices. Fix typo in comment.
fhandler_base::set_ino_and_dev.
* syscalls.cc (fhandler_base::stat_fixup): Ditto. Accommodate name
change throughout. Fixup link count of console devices.
(DEV_CYGDRIVE_MAJOR): Remove.
(iscygdrive_dev): Define.
* dtable.cc (fh_alloc): Accommodate above change.
* path.cc (path_conv::check): Use iscygdrive_dev to check for cygdrive.
* syscalls.cc (fhandler_base::set_ino_and_dev): Drop check for
DEV_CYGDRIVE_MAJOR from conditional.
* syscalls.cc (fhandler_base::set_ino_and_dev): New method to set
st_ino, st_dev, and st_rdev for devices in a single spot.
(fstat64): Call fhandler_base::set_ino_and_dev instead of setting
st_ino, st_dev, and st_rdev here.
(stat_worker): Ditto.
(dtable::fixup_after_exec): Use fixup_close() and detect when it was not
possible to open an inherited file handle.
(dtable::fixup_after_fork): Defensively close any file handles which were not,
for some reason, inheritable.
* dtable.h: Make #pragma once.
(dtable::fixup_close): Declare new function.
* fhandler_console.cc (fhandler_console::set_unit): Set I/O handles to NULL
when this function fails.
(device::dev_on_fs): Remove unneeded bit field. Just make a normal boolean.
(device::exists): Redefine function.
* devices.in: Move previous functions earlier since they are now only defined
static. Rename some functions due to an as-yet unresolved bug in gendevices.
Rename posix part of internal-only devices with a double-slash. gendevices
will eventuall translate that to a ":".
(device::parse): Rework to use dev pointer and dev_storage_end.
* devices.cc: Regenerate.
* gendevices: Translate "// to ": after shilka processing.
* devices.h (device::exists_func): New member function pointer,
replacing noexpose.
(device::expose): Remove.
(device::exists_never): Declare.
(device::exists_ptys): Declare.
(device::exists_cons): Declare.
(device::exists_console): Declare.
(device::exists_nt_dev): Declare.
(device::exists): Declare.
* devices.in (dev_storage): Replace former noexpose values with
pointers to matching exists_XXX method.
(device::exists_never): New method.
(device::exists_ptys): New method.
(device::exists_cons): New method.
(device::exists_console): New method.
(device::exists_nt_dev): New method.
(device::exists): New method.
* fhandler_dev.cc (fhandler_dev::readdir): Replace call to
device::expose with call to device::exists and drop all further
existence filtering since it's done in device::exists now.
* path.cc (path_conv::check): Replace call to device::expose with call
to device::exists.
* devices.cc: Regenerate.
* devices.h (device::noexpose): New field.
(device::dev_on_fs): Make a bit field.
(get_major): Use proper type for declaration.
(expose): New field.
(ext_dev_storage): Delete declaration.
(dev_storage_size): Ditto.
(dev_storage): New declaration.
(dev_storage_end): Ditto.
* devices.in: Mark /dev/ptym*, /dev/com*, /dev/pipe, /dev/fifo, and "/dev" as
"no expose".
* fhandler.h (fhandler_dev::lastrealpos): Delete declaration.
(fhandler_dev::devidx): Declare new field.
* fhandler_disk_file.cc: Move fhandler_dev functions into fhandler_dev.cc.
* fhandler_dev.cc: Add includes needed for functions moved from
fhandler_disk_file.cc.
(dev_storage_scan_start): Define place to start listing devices.
(dev_storage_size): Define size of array to scan.
(fhandler_dev::fhandler_dev): Move here from fhandler_disk_file.cc.
(fhandler_dev::opendir): Ditto.
(fhandler_dev::readdir): Just check devidx for non-NULL to determine when to go
to disk for /dev content. Use dev_storage rather than ext_dev_storage.
Iterate over dev_storage using devidx pointer. Use accessor functions rather
than raw references to the device struct. Only increment dir->__d_position
when we are actually going to be returning something. Add debug_printf for
exit.
(fhandler_dev::rewinddir): Set devidx as appropriate depending on whether
there's a /dev on disk or not.
* gendevices: Don't mark dev_storage static but do put it in the _RDATA
section.
* path.cc (path_conv::check): Use new "device::expose()" function to decide to
forbid programs from referencing internal device types.
Corinna Vinschen
Christopher Faylor
Yaakov Selkowitz
Keith Marshall
Chris Sutcliffe