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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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- The recent commit "Cygwin: pinfo: Fix exit code when non-cygwin app
exits by Ctrl-C." did not fix enough the issue. If a non-cygwin app
is reading the console, it will not return STATUS_CONTROL_C_EXIT
even if it is terminated by Ctrl-C. As a result, the previous patch
does not take effect.
This patch solves this issue by setting sigExeced to SIGINT in
ctrl_c_handler(). In addition, sigExeced will be cleared if the app
does not terminated within predetermined time period. The reason is
that the app does not seem to be terminated by the signal sigExeced.
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- With this patch, FILE_SYNCHRONOUS_IO_NONALERT flag is applied to
the read pipe so that native C# programs work with cygwin pipe.
To handle signals in reading pipe with this flag set, the read
pipe itself is always set to nonblocking mode and simulates the
blocking behaviour in raw_read().
- Default to byte mode rather than message mode in order to make
C# programs work with cygwin pipe.
Addresses: https://cygwin.com/pipermail/cygwin/2021-March/247987.html
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Add winsymlinks:sys, to explicitly select always using plain files with
the system attribute containing a magic cookie to represent a symlink.
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Rename WSYM_sysfile to WSYM_default, since it selects more than just
sysfile with magic cookie now.
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The mq_open call is just a framework now. This patch moves the
entire functionality into fhandler_mqueue. To support standard
OS calls (as on Linux), make fhandler_mqueue a derived class from
fhandler_disk_file and keep the base handle the handle to the
default stream, to allow implementing O_PATH functionlaity as well
as reading from the file and NOT reading binary message queue data.
Implement a standard fhandler_mqueue::open method, allowing, for
instance, to touch a file under /dev/mqueue and if it doesn't exist,
to create a message queue file.
FIXME: This introduces a BAD HACK into path_conv::check, which needs
reviewing.
Keep the posix path intact in the fhandler, and change get_proc_fd_name
accordingly to return only the basename plus leading slash for
/proc/<PID>/fd.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Rather than fetching the system Windows directory at dll init time
only on 32 bit, fetch it on all platforms. Store as WCHAR and
UNICODE_STRING. Use where appropriate to simplify code.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Commit 456c3a46386f added a workaround when handling paths with native
symlinks as inner path components. This patch introduced a problem for
paths handled by the WOW64 File System Redirector (FSR).
Fix this problem by not performing the new code from commit 456c3a46386f
for paths under the Windows directory. Only do this in WOW64.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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This option has been disabled long ago and nobody missed it.
Removing drops a bit of unneeded code
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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- For programs which does not work properly with pseudo console,
disable_pcon in environment CYGWIN is introduced. If disable_pcon
is set, pseudo console support is disabled.
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Newer FAT32 and exFAT add FILE_SUPPORTS_ENCRYPTION to their
flags which wasn't handled by Cygwin yet.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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The handle to the device is never needed. As the name impies,
FSCTL_PIPE_WAIT works on the file system, not on the device level.
Drop opening the device and make sure to open only one handle to NPFS.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* Implement helper functions
* Improve bind
* Implement setting blocking, ioctl(FIONBIO), fcntl(F_SETFL)
* Implement close_on_exec and fixup_after_fork
* Allow overriding sun_path and peer_sun_path
* Improve comments
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Address the real offender
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Bump GPLv2+ to GPLv3+ for some files, clarify BSD 2-clause.
Everything else stays under GPLv3+.
New Linking Exception exempts resulting executables from LGPLv3 section 4.
Add CONTRIBUTORS file to keep track of licensing.
Remove 'Copyright Red Hat Inc' comments.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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MALLOC_DEBUG and NEWVFORK haven't been defined since 2008 (46162537516c5e5fbb).
Remove all references to tem.
winsup/cygwin/ChangeLog:
acconfig.h: delete
dcrt0.cc (dll_crt0_1): remove NEWVFORK code.
dcrt0.cc (do_exit): ditto.
debug.h: ditto.
dtable.h: ditto.
winsup.h: ditto.
globals.cc: ditto.
malloc_wrapper.cc: ditto.
malloc_wrapper.cc (malloc_init): ditto.
spawn.cc (spawnve): ditto.
syscalls.cc (setsid): ditto.
Signed-off-by: Peter Foley <pefoley2@pefoley.com>
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Cygwin_props have been invented to allow switching off the unique
installation keys in the first place, supposedly for debugging.
This never really was a good idea, after all we *want* the installations
to be independent and there's no good reason to break that, not even
for debugging purposes.
Other than that, cygwin_props were meant to be used for some other global
settings which never took place. There's just no good reason to tweak
the DLL binary invisibly where a setting could be done in a file or the
environment.
This patch removes the cygwin_props entirely, including the related
settings in cygcheck.
cygwin:
* cygprops.h: Remove file.
* globals.cc (cygwin_props): Remove.
* cygheap.cc (init_cygheap::init_installation_root): Drop removing
installation key.
utils:
* cygcheck.cc: Drop including cygprops.h. Remove now unused option
values.
(unique_object_name_opt): Remove.
(handle_unique_object_name): Remove function.
(usage): Remove text for unique-object-names options.
(longopts): Remove unique-object-names options.
(main): Drop handling unique-object-names options.
doc:
* utils.xml (cygcheck): Remove text for unique-object-names options.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* collate.h (__collate_load_error): Convert to extern declaration.
* globals.cc (__collate_load_error): Define and initialize here.
* libc/fnmatch.c: Update to latest from FreeBSD.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* globals.cc (ro_u_prlfs): Add trailing NUL. Explain why.
* mount.cc (fs_info::update): Add a comment to explain PrlSF.
* path.h (path_conv::fs_is_prlfs): Add for symmetry.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* mount.h (enum fs_info_type): Add prlfs (Parallels Desktop FS).
(class fs_info): Add has_broken_fnoi flag. Implement prlfs FS flag.
* mount.cc (fs_info::update): Handle PrlFS. Fill new has_broken_fnoi
flag with life.
(fs_names): Add prlfs.
* globals.cc (ro_u_prlfs): Define.
* path.h (path_conv::has_broken_fnoi): New method.
* path.cc (symlink_info::check): Call file_get_fnoi utilizing new
has_broken_fnoi filesystem flag.
* fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Ditto.
* new-features.xml (ov-new2.3): Document Parallels Desktop FS support.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* dcrt0.cc (initial_env): Reduce size of local path buffers to
PATH_MAX. Allocate debugger_command from process heap.
(init_windows_system_directory): Very early initialize new global
variable global_progname.
* dll_init.cc (dll_list::alloc): Make path buffer static. Explain why.
(dll_list::populate_deps): Use tmp_pathbuf for local path buffer.
* exceptions.cc (debugger_command): Convert to PWCHAR.
(error_start_init): Allocate debugger_command and fill with wide char
strings. Only allocate if NULL.
(try_to_debug): Just check if debugger_command is a NULL pointer to
return. Drop conversion from char to WCHAR and drop local variable
dbg_cmd.
* globals.cc (global_progname): New global variable to store Windows
application path.
* pinfo.cc (pinfo_basic::pinfo_basic): Just copy progname over from
global_progname.
(pinfo::status_exit): Let path_conv create the POSIX path to
avoid local buffer.
* pseudo_reloc.cc (__report_error): Utilize global_progname, drop local
buffer.
* smallprint.cc (__small_vsprintf): Just utilize global_progname for
%P format specifier.
(__small_vswprintf): Ditto.
* strace.cc (PROTECT): Change to reflect x being a pointer. Reformat.
(CHECK): Ditto. Reformat.
(strace::activate): Utilize global_progname, drop local buffer.
Fix formatting.
(strace::vsprntf): Reduce size of local progname buffer to NAME_MAX.
Copy and, if necessary, convert only the last path component to
progname.
(strace_buf_guard): New muto.
(buf): New static pointer.
(strace::vprntf): Use buf under strace_buf_guard lock only. Allocate
buffer space for buf on Windows heap.
* wow64.cc (wow64_respawn_process): Utilize global_progname, drop
local path buffer.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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* path.cc (warn_msdos): Make static. Drop test for dos_file_warning.
(path_conv::check): Check for dos_file_warning here to avoid a function
call in the default case.
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ObjectTypeName for object types rather than calling lstat to avoid
performance hit.
* globals.cc (ro_u_natdir): Define.
(ro_u_natsyml): Define.
(ro_u_natdev): Define.
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* exceptions.cc (inside_kernel): Don't call GetModuleFileName if we know we're
in ntdll.
* sigproc.cc (wait_sig): Initialize hntdll.
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(dev_storage): Ditto for /dev.
* devices.cc: Regenerate.
* fhandler.cc (fhandler_base::open_null): New method to open a fake
\Device\Null handler.
(fhandler_base::open): Fix formatting. Change O_ACCMODE test to a
switch statement. Simplify a test which still tested for a now unused
create_disposition.
* fhandler.h (fhandler_base::open_null): Declare.
(fhandler_netdrive::close): Declare.
* fhandler_dev.cc (fhandler_dev::open): Open fake \Device\Null handle
by just calling new open_null method.
* fhandler_disk_file.cc (fhandler_cygdrive::open): Ditto.
* fhandler_netdrive.cc (fhandler_netdrive::open): Call open_null
rather than setting nohandle.
(fhandler_netdrive::close): New method.
* fhandler_registry.cc (fetch_hkey): Fix token in RegOpenUserClassesRoot
call. Create valid key for HKEY_CURRENT_CONFIG by mapping to real key
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Hardware Profiles\Current.
(fhandler_registry::open): Set nohandle only when using pseudo registry
handle.
* fhandler_virtual.cc (fhandler_virtual::opendir): Call open rather
than just setting nohandle here.
* fhandler_virtual::fstatvfs): Set ST_RDONLY fs flag.
* globals.cc (ro_u_null): New readonly UNICODE_STRING for \Device\Null.
* path.h (path_conv::set_path): Revert previous change caring for
wide_path.
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size of unused2 accordingly.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
* lib/_cygwin_crt0_common.cc (_cygwin_crt0_common): Initialize
u->posix_memalign with address of posix_memalign.
* malloc_wrapper.cc (posix_memalign): Call user-provided posix_memalign
rather than just returning ENOSYS.
* globals.cc (__cygwin_user_data): Initialize posix_memalign member.
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* environ.cc (tty_is_gone): Delete.
(known): Delete tty, add wincmdln.
* globals.cc: Reorganize list of environment bools, remove explicit =
false for slight load time optimization.
(wincmdln): New global.
* spawn.cc (child_info_spawn::worker): Honor wincmdln.
doc directory changes:
* new-features.sgml (ov-new1.7.23): Add new section. Mention wincmdln.
* cygwinenv.xml: Mention wincmdln.
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* Makefile.in (DLL_OFILES): Drop fhandler_mem.o.
(fhandler_mem_CFLAGS): Remove rule.
* devices.in (enum fh_devices): Remove FH_MEM, FH_KMEM and FH_PORT.
* devices.cc: Regenerate.
* dtable.cc (fh_alloc): Drop handling for FH_MEM, FH_KMEM and FH_PORT.
* fhandler.h (class fhandler_dev_mem): Remove.
* fhandler_mem.cc: Remove file.
* globals.cc (ro_u_pmem): Remove.
* mmap.cc (fhandler_dev_mem::mmap): Remove.
(fhandler_dev_mem::munmap): Remove.
(fhandler_dev_mem::fixup_mmap_after_fork): Remove.
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option. On pre-Vista warn the user if the "winsymlinks:native*" option
is set.
* globals.cc (enum winsym_t): Add WSYM_nativestrict.
* path.cc (symlink_native): Don't create native symlink if target
does not exist. Explain why. Improve comments.
(symlink_worker): Change AFS symlink handling to WSYM_nativestrict.
Handle WSYM_nativestrict throughout. Change condition for bail out
to wsym_type == WSYM_nativestrict. Add comment. Fix formatting.
* shared_info.h (CURR_USER_MAGIC): Change to reflect change in
class user_info.
(class user_info): Add member warned_nonativesyms.
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used for.
* miscfuncs.cc (thread_wrapper): Set __isthreaded to 1 here.
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* environ.cc (set_winsymlinks): Set allow_winsymlinks.
(parse_thing): Change "winsymlinks" to set by function.
* globals.cc (enum winsym_t): Define.
(allow_winsymlinks): Define as winsym_t.
(ro_u_afs): New R/O Unicode string.
* mount.cc (fs_info::update): Fix comment. Handle AFS.
(fs_names): Add "afs".
* mount.h (enum fs_info_type): Add afs.
(class fs_info): Implement afs.
* path.cc (symlink): Drop third parameter in call to symlink_worker.
(symlink_nfs): New function.
(symlink_native): New function.
(symlink_worker): Drop third argument. Handle native symlink type by
calling symlink_native. Move code to handle NFS to symlink_nfs. Fix
formatting. Slightly restructure code.
* path.h (class path_conv): Add fs_is_afs method.
(symlink_worker): Declare here.
* security.h: Define privilege constants as unsigned int instead of as
unsigned long.
* syscalls.cc (mknod_worker): Set third parameter in symlink_worker
call to WSYM_lnk.
* winsup.h (symlink_worker): Drop declaration here.
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checkins. Regularize copyright format.
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(_cygtls::interrupt_setup): ...into here.
(sigpacket::process): Simplify setting of handler when have_execed.
(_cygtls::interrupt_setup): Don't call proc_subproc when we've execed.
* globals.cc (exit_states): Delete unneeded ES_EXEC_EXIT.
* pinfo.cc (pinfo::exit): Change debugging output. Call proc_terminate rather
than the now-obsolete sigproc_terminate. Don't set exit_state to ES_EXEC_EXIT.
Set exit_state to ES_FINAL later.
* sigproc.cc (sigproc_terminate): Delete function.
(wait_sig): Don't call proc_subproc if have_execed.
* sigproc.h (sigproc_terminate): Delete declaration.
* sync.h (lock_process::lock_process): Don't set exit_state to
ES_PROCESS_LOCKED.
(lock_process::operator LONG): Define.
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* select.cc (select): Unconditionally return when a signal is detected.
(select_stuff::wait): Ditto.
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intended.
* sigproc.cc (wait_sig): Only stop accepting signals after exit_state >
ES_EXIT_STARTING.
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* dcrt0.cc (do_exit): Just set exit_state to ES_EVENTS_TERMINATE and nuke call
to events_terminate which just set a superfluous flag.
* sigproc.cc (signal_exit_code): New variable.
(setup_signal_exit): Define new function.
(_cygtls::signal_exit): Remove accommodations for closing the signal pipe
handle.
(exit_thread): Just sleep if we're exiting.
(wait_sig): If signal_exit_code is set, just handle bookkeeping signals and
exit ReadFile loop if there is nothing more to process. Call signal_exit at
end if signal_exit_code is non-zero.
* sigproc.h (setup_signal_exit): Declare new function.
* exceptions.cc (sigpacket::process): Use setup_signal_exit to control exiting
due to a signal.
(exception::handle): Ditto. Query exit_state rather than defunct exit_already
to determine if we are exiting.
* globals.cc (ES_SIGNAL_EXIT): New enum.
* sync.h (lock_process::release): New function for explicitly unlocking muto.
(lock_process::~lock_process): Use release method.
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* mount.cc (fs_info::update): Recognize ReFS.
* mount.h (enum fs_info_type): Add refs.
(class fs_info): Add refs flag and accessor methods.
* ntdll.h (RtlAddAccessAllowedAceEx): Declare.
(RtlAddAccessDeniedAceEx): Declare.
* path.h (path_conv::fs_is_refs): Define.
* sec_helper.cc (_recycler_sd): New function to create security
descriptors suitable for the recycler bin starting with Vista.
* security.cc (add_access_allowed_ace): Use RtlAddAccessAllowedAceEx
and drop code to set AceFlags explicitely.
(add_access_denied_ace): Use RtlAddAccessDeniedAceEx and drop code to
set AceFlags explicitely.
* security.h (_recycler_sd): Declare.
(recycler_sd): Define.
* syscalls.cc (desktop_ini): Change formatting.
(desktop_ini_ext): Define third line of recycler desktop.ini file
since Vista,
(try_to_bin): Handle ReFS just like NTFS. Write Vista and later
Recycler in all uppercase, just like shell32 does when recreating it.
Fix comments to include ReFS. Don't implicitely reuse object
attributes from earlier NtOpenFile call, rather recreate it for safety.
Use recycler_sd call when creating security descriptor for Recycler
dirs and files on Vista and later. Write third line of desktop.ini
when on Vista and later.
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* 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.
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* devices.h (DEV_DEV_MAJOR): Define.
(FH_DEV): Redefine in terms of DEV_DEV_MAJOR.
(ext_dev_storage): Declare.
(dev_storage_size): Declare.
(dev_dev_storage): Declare.
(dev_dev): Define.
(isdev_dev): Define.
* devices.in (dev_dev_storage): Activate.
(ext_dev_storage): Define as externally available pointer to
dev_storage.
(dev_storage_size): Define to contain number of dev_storage elements.
* dir.cc (rmdir): Handle /dev as always not empty.
* dtable.cc (fh_alloc): Handle DEV_DEV_MAJOR.
* fhandler.h (fhandler_dev): New class, derived from fhandler_disk_file.
(fhandler_union): Add fhandler_dev member.
* fhandler_disk_file.cc (class __DIR_mounts): Handle /dev directory
to make sure it always exists.
* fhandler_dev.cc: New file implementing /dev.
* globals.cc (ro_u_dev): New R/O unicode string.
* path.cc (path_conv::check): Handle FH_DEV device.
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(child_info::rd_proc_pipe): Declare new field.
(child_info::wr_proc_pipe): Ditto.
(child_info::prefork): Declare new function, derived from previous pinfo
version.
* dcrt0.cc (child_info_fork::handle_fork): Close previous wr_proc_pipe when
appropriate and assign new one from passed-in child_info block.
(child_info_spawn::handle_spawn): Assign our wr_proc_pipe handle from passed-in
child_info block.
* fork.cc (child_info::prefork): Define new function.
(frok::child): Clear rd_proc_pipe and wr_proc_pipe so they will not be closed
by the child_info destructor.
(frok::parent): Use child_info prefork handling, outside of retry loop. Set
rd_proc_pipe in child's pinfo after successful CreateProcess. Eliminate
postfork call.
* globals.cc (my_wr_proc_pipe): Define/declare new variable.
* pinfo.cc (pinfo::pending_rd_proc_pipe): Delete.
(pinfo::pending_wr_proc_pipe): Ditto.
(pinfo::prefork): Ditto.
(pinfo::postfork): Ditto.
(pinfo::postexec): Ditto.
(pinfo::wait): Assume that rd_proc_pipe is set up correctly prior to call.
(_pinfo::alert_parent): Replace "wr_proc_pipe" with "my_wr_proc_pipe".
* pinfo.h (_pinfo::_wr_proc_pipe): Delete declaration.
(_pinfo::set_rd_proc_pipe): Define new function.
(pinfo::pending_rd_proc_pipe): Delete declaration.
(pinfo::pending_wr_proc_pipe): Ditto.
(pinfo::prefork): Ditto.
(pinfo::postfork): Ditto.
(pinfo::postexec): Ditto.
(pinfo::wr_proc_pipe): Ditto.
* sigproc.cc (child_info::child_info): Clear rd_proc_pipe and wr_proc_pipe.
(child_info::cleanup): Close rd_proc_pipe and wr_proc_pipe if necessary.
(child_info_fork::child_info_fork): Set forker_finished to NULL by default.
(child_info_spawn::child_info_spawn): Use my_wr_proc_pipe rather than
myself->wr_proc_pipe.
(child_info::sync): Ditto.
(child_info_spawn::cleanup): Call child_info::cleanup.
* spawn.cc (child_info_spawn::worker): Remove call to myself.prefork(). Set
wr_proc_pipe when execing or set up new rd_proc_pipe/wr_proc_pipe via
child_info::prefork when spawning. Remove call to pinfo::postexec. Set
rd_proc_pipe in child pinfo when spawning. Use my_wr_proc_pipe rather than
myself->wr_proc_pipe. Remove call to postfork.
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* mkglobals_h: Ditto for generated globals.h file.
* globals.cc: Use specific NO_GLOBALS_H flag to control inclusion of globals.h.
* winsup.h: Honor NO_GLOBALS_H to control inclusion of globals.h. Make
clear_procimptoken extern inline so that it is only defined when needed.
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(ignore_case_with_glob): Ditto.
(allow_winsymlinks): Ditto.
(reset_com): Move definition to globals.cc.
(struct parse_thing): Add "detect_bloda" option.
* fhandler_serial.cc (fhandler_serial::open): Drop (incorrect)
declaration of reset_com.
* globals.cc (ignore_case_with_glob): Move definition into C++-only
block.
(dos_file_warning): Define.
(allow_winsymlinks): Define.
(reset_com): Define.
(detect_bloda): Define.
* path.cc (dos_file_warning): Drop definition here.
(allow_winsymlinks): Drop definition here.
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information.
* exceptions.cc (_cygtls::inside_kernel): Modernize comment. Consider
executing a DLL from the Wow64 directory as being "in the kernel".
(_cygtls::call_signal_handler): For now, only deal with main_tls signals if
main_tls is known to be executing in the cygwin DLL. To more closely emulate
linux, consider the operation to be restartable if not executing in the main
thread.
* globals.cc (windows_system_directory): Remove NO_COPY.
(windows_system_directory_length): Ditto.
(system_wow64_directory): New variable.
(system_wow64_directory_length): Ditto.
* select.cc (cygwin_select): Don't issue a EINTR on non-main threads since that
seems to be what Linux does. Add missing break to signal case/switch.
(select_stuff::wait): Don't issue a EINTR on non-main threads since that seems
to be what Linux does. Remove now-unneeded accommodation for
WAIT_IO_COMPLETION. Add a comment.
* sigproc.h (cygwait): Ditto. Don't return if signal_received noticed and it's
not the main thread.
* signal.cc (sigprocmask): Add standard syscall debug stuff.
* thread.cc (pthread_sigmask): Ditto.
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