rather than cmalloc/cfree. Check return value from malloc before
using it.
(struct heap_info): Ditto.
(struct thread_info): Ditto. Rename from stack_info. Rename members
and local variables accordingly.
(thread_info::thread_info): Store stack and TEB addresses.
(thread_info::fill_if_match): Print "teb" if a TEB address has been
found. Special case for WOW64, explain why.
(format_process_maps): Fetch PEB address. Print MEM_RESERVE regions
with equal signs to distinguish them from PAGE_NOACCESS regions. Fix
printing of 'p' and 's' to differ between MEM_PRIVATE and MEM_MAPPED
pages, as on Linux. Print 'g' instead of 'p for PAGE_GUARD pages.
Print PEB and SharedUserData area if recognized.
members to char *. Print "shared" rather than "share".
(struct stack_info): New class to fetch process stack information.
(format_process_maps): Initialize and check for stack information.
(class child_info_fork): Remove stacksize, add stackaddr and guardsize
members.
* dcrt0.cc (child_info_fork::alloc_stack_hard_way): Partial rewrite
to regenerate the stack exactly as in the parent.
(child_info_fork::alloc_stack): Set stackaddr to 0, rather than
stacksize.
(dll_crt0_1): Check for stackaddr before changing the stack addresses
in the TEB.
* fork.cc (frok::child): Check for stackaddr here.
(frok::parent): Set ch.stackaddr and ch.guardsize if not called from
the main thread.
* init.cc (dll_entry): Replace pointer to NT_TIB with pointer to TEB.
Fix incorrectly changed address test before removing _my_tls.
Set StackLimit to NULL on Windows 2000. Explain why.
* miscfuncs.cc (struct thread_wrapper_arg): Store stackbase rather
than stacksize, store commitaddr, remove guardsize. Store all pointers
as char * for easier address arithmetic.
(thread_wrapper): Rewrite to remove OS stack before calling thread
function. Add lots of comments to explain what we do.
(CygwinCreateThread): Reserve our own stack in case we got no
application stack. Add comments.
* ntdll.h (struct _TEB): Extend defintion up to DeallocationStack
member.
* thread.cc (pthread_attr::pthread_attr): Use "(size_t) -1"
rather then 0xffffffff.
* wincap.h (wincaps::has_stack_size_param_is_a_reservation): New
element.
* wincap.cc: Implement above element throughout.
(pthread_getcpuclockid): Export.
* hires.h (PID_TO_CLOCKID): New macro.
(CLOCKID_TO_PID): New macro.
(CLOCKID_IS_PROCESS): New macro.
(THREADID_TO_CLOCKID): New macro.
(CLOCKID_TO_THREADID): New macro.
(CLOCKID_IS_THREAD): New macro.
* ntdll.h (enum _THREAD_INFORMATION_CLASS): Add ThreadTimes.
* posix.sgml (std-notimpl): Add clock_getcpuclockid and
pthread_getcpuclockid from here...
(std-susv4): ... to here.
(std-notes): Remove limitations of clock_getres and clock_gettime.
Note limitation of timer_create to CLOCK_REALTIME.
* sysconf.cc (sca): Set _SC_CPUTIME to _POSIX_CPUTIME, and
_SC_THREAD_CPUTIME to _POSIX_THREAD_CPUTIME.
* thread.cc (pthread_getcpuclockid): New function.
* timer.cc (timer_create): Set errno to ENOTSUP for CPU-time clocks.
* times.cc (clock_gettime): Handle CLOCK_PROCESS_CPUTIME_ID and
CLOCK_THREAD_CPUTIME_ID.
(clock_getres): Ditto.
(clock_settime): Set errno to EPERM for CPU-time clocks.
(clock_getcpuclockid): New function.
* include/pthread.h (pthread_getcpuclockid): Declare.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
_localtime_buf. Remove username in favor of a global buffer. Reorder
slightly to keep the net.cc stuff together.
* globals.cc (__getlogin_username): New global char buffer.
* tlsoffsets.h: Regenerate.
* uinfo.cc (getlogin): Copy username into __getlogin_username.
requested stack is application-provided within the user heap or an
mmapped region. If so, just use it. Add comment to explain why.
* miscfuncs.cc (thread_wrapper): If an application-provided stack
has been given, implement cygtls area at the stackbase. Fix comment.
* mmap.cc (is_mmapped_region): New function.
* winsup.h (is_mmapped_region): Declare.
(pthread_attr_setguardsize): Export.
(pthread_attr_setstack): Export.
(pthread_attr_setstackaddr): Export.
* init.cc (dll_entry): Remove wow64_test_stack_marker. Check for
unusual stack address by testing stack addresses from current TEB.
Check validity of _my_tls by testing if it's within the stack as
given in current TEB.
* miscfuncs.cc (struct thread_wrapper_arg): New structure used to
push all required information to thread_wrapper function.
(thread_wrapper): Wrapper function for actual thread function.
If an application stack has been given, change %ebp and %esp so that
the thread function runs on that stack. If the thread has been created
by CygwinCreateThread, set up the POSIX guard pages if necessary.
(CygwinCreateThread): New function.
* miscfuncs.h (CygwinCreateThread): Declare.
* ntdll.h (struct _TEB): Define all members up to Peb.
* posix.sgml (std-susv4): Move pthread_attr_getguardsize,
pthread_attr_setguardsize and pthread_attr_setstack here.
(std-deprec): Add pthread_attr_setstackaddr.
* sysconf.cc (sca): Set _SC_THREAD_ATTR_STACKADDR to
_POSIX_THREAD_ATTR_STACKADDR.
* thread.cc (pthread::precreate): Copy pthread_attr stackaddr and
guardsize members.
(pthread::create): Call CygwinCreateThread.
(pthread_attr::pthread_attr): Initialize guardsize.
(pthread_attr_setstack): New function.
(pthread_attr_setstackaddr): New function.
(pthread_attr_setguardsize): New function.
(pthread_attr_getguardsize): New function.
(pthread_getattr_np): Copy attr.guardsize.
* thread.h (pthread_attr): Add member guardsize.
* include/pthread.h (pthread_attr_getguardsize): Declare.
(pthread_attr_setguardsize): Declare.
* include/cygwin/version.h: Bump API minor number.
uintptr_t. Add heap_id, end, flags members.
(heap_info::heap_vm_chunks): Rename from heaps.
(heap_info::heap_info): Rearrange using RtlQueryProcessDebugInformation
to get information of heap virtual memory blocks. Store heap id and
flags, as well as end address of each block.
(heap_info::fill_if_match): Check incoming base address against full
address range of heap chunks. Convert flag values in extra heap
information.
(format_process_maps): Change order so that heap check is done before
MEM_MAPPED check since there are shareable heaps.
* ntdll.h (PDI_HEAP_BLOCKS): Define.
(HEAP_FLAG_NOSERIALIZE): Define.
(HEAP_FLAG_GROWABLE): Define.
(HEAP_FLAG_EXCEPTIONS): Define.
(HEAP_FLAG_NONDEFAULT): Define.
(HEAP_FLAG_SHAREABLE): Define.
(HEAP_FLAG_EXECUTABLE): Define.
(HEAP_FLAG_DEBUGGED): Define.
(struct _DEBUG_HEAP_ARRAY): Define.
(struct _DEBUG_HEAP_BLOCK): Define.
* libc/time/strptime.c (is_leap_year): New static function.
(first_day): Ditto.
(__strptime): Fill in tm_yday when all of tm_year, tm_mon and tm_mday
are updated. Fill in tm_mon, tm_mday and tm_wday when both of tm_year
and tm_yday are updated.
Support RAM and swap space larger than 4GB.
Remove output elements not found with modern Linux kernels.
(format_proc_swaps): Support paging files larger than 4GB.
* dlfcn.cc (dlopen): Make sure errno is set if an error occurs.
(dlsym): Rewrite using RtlQueryProcessDebugInformation instead of
EnumProcessModules.
* ntdll.h (struct _DEBUG_MODULE_ARRAY): Define.
(RtlCreateQueryDebugBuffer): Declare.
(RtlDestroyQueryDebugBuffer): Declare.
(RtlQueryProcessDebugInformation): Declare.
all mapped address space in a process (committed or reserved),
identifying the nature of the mapping (mapped file/image, heap,
shared memory) when possible.
(dos_drive_mappings): New helper classes.
(heap_info): Ditto.
* ntdll.h (struct _MEMORY_SECTION_NAME): Define.
Make waiting loop interruptible and cancelable. Check for SYSTEM DOS
flag before reading the file. Change return value to return 0 on
success, SOCKET_ERROR on failure.
(fhandler_socket::bind): Only set R/O DOS flag on filesystems not
supporting ACLs.
(fhandler_socket::connect): Accommodate changed return values from
get_inet_addr. Use SOCKET_ERROR instead of -1.
(fhandler_socket::sendto): Accommodate changed return values from
get_inet_addr.
* syslog.cc (connect_syslogd): Ditto.
Set errno to EINVAL if tv.tv_nsec is invalid, and to EPERM if
SetSystemTime fails. Return -1 in case of failure, all for
compatibility with BSD and Linux.
(clock_settime): New function.
* cygwin.din (clock_settime): Export.
* posix.sgml (std-susv4): Add clock_settime.
Move clock_setres from here...
(std-deprec): ... to here.
(std-notes): Correct limitation of clock_setres to only CLOCK_REALTIME.
Add limitation of clock_settime to only CLOCK_REALTIME.
* include/cygwin/version.h (CYGWIN_VERSION_API_MINOR): Bump.
an archetype.
* fhandler_console.cc (fhandler_console::invisible_console): Move to the top.
(fhandler_console::set_close_on_exec): Don't set close-on-exec on handle since
it's an archetype and you don't know how many things could be using it.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output): Put back
Sleep(10) for tty_master case.
* sigproc.cc (stopped_or_terminated): Don't consider a pid which has been
reaped to be terminated.
(fhandler_socket::write): Declare.
* fhandler_procsys.cc (fhandler_procsys::read): Add FIXME comment.
(fhandler_procsys::write): Ditto.
* fhandler_socket.cc (fhandler_socket::read): New method.
(fhandler_socket::write): New method.
* syscalls.cc: Rearrange order of read/write functions.
(read): Call fhandler read method directly instead of just readv.
(readv): Remove EINTR loop. This is done in all affected fhandler's
now.
(write): Call fhandler write method directly instead of just writev.
Fix debug output.
* debug.cc (close_handle): Call debugger on failure.
* devices.in (device::tty_to_real_device): Delete.
* devices.h (device::tty_to_real_device): Ditto.
* devices.cc: Regenerate.
* dtable.cc: Delete old ifdef'ed vfork code.
(dtable::release): Don't handle archetype here.
(dtable::init_std_file_from_handle): Consolidate console tests. Generate
major/minor for tty ASAP. Fix incorrect setting of DEV_TTYS* for serial.
(fh_alloc): New function derived from build_fh_pc. Pass current tty when
building tty.
(build_pc_pc): Use fh_alloc to create. Set name from fh->dev if appropriate.
Generate an archetype or point to one here.
(dtable::dup_worker): Deal with archetypes. Rely on = operator copying whole
class rather than just fhandler_base.
(dtable::fixup_after_exec): Call close_with_arch to handle closing of fhandlers
with archetypes.
* fhandler.cc (fhandler_base::operator =): Call memcpy with fhandler's size()
rather than sizeof fhandler_base.
(fhandler_base::open_with_arch): New function. Handles opening of fhandler's
with archetypes, dealing with usecounts, etc.
(fhandler_base::close_with_arch): Ditto for close.
* fhandler.h: Many changes for archetypes.
(fhandler_base::set_name): Set both normalized path and regular path.
(fhandler_base::open_with_arch): New function.
(fhandler_base::open_setup): Ditto.
(fhandler_base::use_archetype): Ditto.
(fhandler_base::_archetype_usecount): Ditto.
(fhandler_*::size): Ditto.
(fhandler_dev_tape::open): Remove virtual decoration.
(fhandler_console::use_archetype): New function. Return true.
(fhandler_console::open_setup): New function.
(fhandler_console::dup): Delete.
(fhandler_tty_slave::fhandler_tty_slave): Redeclare to take an argument.
(fhandler_tty_slave::use_archetype): New function. Return true.
(fhandler_tty_slave::cleanup): New function.
(fhandler_pty_master::use_archetype): New function. Return true.
(fhandler_pty_master::cleanup): New function.
(fhandler_pty_master::is_tty_master): New function. Return false.
(fhandler_tty_master::is_tty_master): New function. Return true.
(fhandler_dev_dsp::fhandler_dev_dsp): New function. Return true.
(report_tty_counts): Only report on archetype's usecount if there is one.
* fhandler_console.cc (fhandler_console::get_tty_stuff): Remove handling of
setsid, set_ctty, set_flags, and manage_console_count.
(fhandler_console::open_setup): New function. Implement functionality removed
from get_tty_stuff.
(fhandler_console::dup): Delete.
(fhandler_console::output_tcsetattr): Set errno on error.
(fhandler_console::fhandler_console): Set device early.
(fhandler_console::init): Use open_with_arch to open console handles.
(fhandler_console::fixup_after_fork_exec): Nuke most of the stuff for dealing
with console handles.
* fhandler_dsp.cc (fhandler_dev_dsp::open): Remove archetype handling.
(fhandler_dev_dsp::write): Ditto.
(fhandler_dev_dsp::read): Ditto.
(fhandler_dev_dsp::close): Ditto.
(fhandler_dev_dsp::dup): Ditto.
(fhandler_dev_dsp::ioctl): Ditto.
(fhandler_dev_dsp::fixup_after_fork): Ditto.
(fhandler_dev_dsp::fixup_after_exec): Ditto.
* fhandler_tty.cc (fhandler_tty_common::__acquire_output_mutex): Add a little
more debugging.
(fhandler_tty_common::__release_output_mutex): Ditto.
(fhandler_pty_master::process_slave_output): Ditto. Don't do signal handling
or pthread_cancel handling in the tty master thread.
(process_output): Minor reorg.
(fhandler_tty_slave::fhandler_tty_slave): Set device based on new ntty
argument.
(fhandler_tty_slave::open): Remove archetype handling. Move some processing
into open_setup().
(fhandler_tty_slave::open_setup): New function.
(fhandler_tty_slave::cleanup): New function.
(fhandler_tty_slave::close): Remove archetype handling. Move some processing
into cleanup().
(fhandler_tty_slave::init): Rename argument from f to h. Open device using
open_with_arch(). Remove archetype handling.
(fhandler_pty_master::dup): Ditto.
(fhandler_pty_master::open): Ditto.
(fhandler_pty_master::close): Ditto. Move some handling to cleanup().
(fhandler_pty_master::cleanup): New function.
(fhandler_tty_master::init_console): Give unique name to captive console
fhandler.
* pinfo.cc (_pinfo::set_ctty): Rename argument from arch to fh. Eliminate
archetype assumption.
* syscalls.cc (close_all_files): Use close_with_arch for closing.
(open): Use open_with_arch() rather than open().
(close): Use close_with_arch() rather than close().
parameter since we don't change the Win32 error here anymore.
(fhandler_base::raw_read): Accommodate change to is_at_eof.
* fhandler_disk_file.cc (fhandler_disk_file::pread): In binary mode use
direct call to NtReadFile, rather than lseek/read.
(fhandler_disk_file::pwrite): In binary mode use direct call to
NtWriteFile, rather than lseek/write.
in PID_EXITED state. Report pid 0 when pid does not exist rather than pid -1.
Make debug output reflect actual function call.
* sigproc.cc (stopped_or_terminated): Set process state to reaped when we've
finished waiting for it.
* include/sys/cygwin.h (PID_REAPED): New enum.
parent class to fhandler_base_overlapped. Remove declaration of
method write. Add declaraiotns for raw_read and raw_write.
* fhandler_mailslot.cc (fhandler_mailslot::fhandler_mailslot): Call
fhandler_base_overlapped constructor.
(fhandler_mailslot::fstat): Call fhandler_base_overlapped::fstat.
(fhandler_mailslot::open): Drop FILE_SYNCHRONOUS_IO_NONALERT flag from
call to NtOpenFile.
(fhandler_mailslot::raw_read): New method.
(fhandler_mailslot::raw_write): Ditto. Take over length algorithm from
former write method.
(fhandler_mailslot::write): Remove.
(fhandler_mailslot::ioctl): Call fhandler_base_overlapped::ioctl.
* fhandler_tape.cc (lock): Call _lock with false argument.
(_lock): Take bool cancelable parameter. Handle O_NONBLOCK.
Make cancelable if cancelabe parameter is true.
(fhandler_dev_tape::raw_read): Call _lock with true argument.
(fhandler_dev_tape::raw_write): Ditto.
(fhandler_dev_dsp::Audio_out::Audio_out): Take pointer to encapsulating
fhandler_dev_dsp as parameter.
(fhandler_dev_dsp::Audio_in::Audio_in): Ditto.
(fhandler_dev_dsp::Audio::Audio): Take pointer to encapsulating
fhandler_dev_dsp as parameter and store in fh.
(fhandler_dev_dsp::Audio_out::write): Change return type to int and
return number of bytes written. Return -1 if waitforspace returns false
and no bytes have been written so far.
(fhandler_dev_dsp::Audio_out::waitforspace): Change return type to bool.
Handle O_NONBLOCK. Make waiting loop interruptible and cancelable.
Return false in any of these cases, otherwise true.
(fhandler_dev_dsp::Audio_in::read): Set returned nBytes to -1 if
waitfordata returns false and nothing has been read so far.
(fhandler_dev_dsp::Audio_in::waitfordata): Change return type to bool.
Handle O_NONBLOCK. Make waiting loop interruptible and cancelable.
Return false in any of these cases, otherwise true.
(fhandler_dev_dsp::write): Call Audio_out constructor with this as
parameter.
(fhandler_dev_dsp::read): Call Audio_in constructor with this as
parameter.
(select_stuff::destroy): New inline method to delete memory taken
by select_stuff.
(select_stuff::~select_stuff): Call destroy.
(select_stuff::wait): Add case to allow canceling select.
* select.h (select_stuff::destroy): Declare.
* thread.cc: Mark poll, pselect and poll as cancelable.
nonblocking case. Drop useless waiter variable. Rewrite wait for
input_available_event to use a switch statement. Handle timeout and
failure more gracefully. Make restartable and cancelable. Rewrite
wait for input_mutex to use WFMO and a switch statement. Handle
timeout and failure more gracefully. Make restartable and cancelable.
after a signal. Add cancelability.
(fhandler_serial::raw_write): Wait for write to succeed if O_NONBLOCK
is not set. Add signal handling and cancelability.
* autoload.cc: Convert all definitions for ANSI user32 functions to
definitions for the corresponding UNICODE function.
(SendMessageA): Remove.
(SendNotifyMessageW): Define.
* fhandler_windows.cc (fhandler_windows::write): Use SendNotifyMessageW
call rather than SendMessage to make function always return immediately.
(fhandler_windows::read): Make function interruptible and a cancellation
point. Handle O_NONBLOCK.
* select.cc (peek_serial): Don't wait for signal_arrived here.
* window.cc (wininfo::winthread): Call CreateWindowExW directly rather
than CreateWindow wrapper.
* fhandler_socket.cc (fhandler_socket::connect): Ditto.
(fhandler_socket::accept4): Ditto.
(fhandler_socket::recvfrom): Ditto.
(fhandler_socket::recvmsg): Ditto.
(fhandler_socket::sendto): Ditto.
(fhandler_socket::sendmsg): Ditto.
* flock.cc (lf_setlock): Allow to cancel thread running blocking
file lock. Try to make code more readable.
(lockf): Call pthread_testcancel.
* mmap.cc (msync): Ditto.
* posix_ipc.cc (ipc_cond_timedwait): Call pthread::static_cancel_self
rather than pthread_testcancel.
* select.cc (cygwin_select): Call pthread_testcancel.
* syscalls.cc (pread): Ditto.
(pwrite): Ditto.
(readv): Ditto.
(writev): Ditto.
(open): Ditto.
(close): Ditto.
(fsync): Ditto.
* termios.cc (tcdrain): Ditto.
* thread.cc: Align list of cancellation points with above changes.
Mark not-implemented functions, too.
(cancelable_wait): Don't set unused object indices to WAIT_FAILED
since that could result in wrong behaviour. Set them to the invalid
value WAIT_TIMEOUT + 1 instead.
* thread.cc (pthread::pthread): Initialize canceled to false.
(pthread::cancel): Set canceled before setting cancel_event.
(pthread::testcancel): Check for canceled. Only wait for cancel_event
if canceled is true. Explain why.
(pthread::_fixup_after_fork): Set canceled to false.
* errno.cc (geterrno_from_nt_status): Define.
* flock.cc: Fix copyright dates.
* ntdll.h (enum _TIMER_TYPE): Define.
(PTIMER_APC_ROUTINE): Define.
(NtCancelTimer): Declare.
(NtCreateTimer): Declare.
(NtSetTimer): Declare.
* posix_ipc.cc (ipc_cond_timedwait): Rewrite to make interruptible and
restartable. Call pthread_testcancel in case of timeout to enable
pthread_cancel on waiting thread. Replace WFMO timeout with waiting
for a waitable timer. Explain why. Replace single call to WFMO with
two calls, one for the event, one for the mutex. Don't lock mutex in
case of error.
(ipc_cond_signal): Make void function.
(ipc_cond_close): Ditto.
(_mq_send): Immediately return -1 in case of error from
ipc_cond_timedwait.
(_mq_receive): Ditto.
Eric Blake
Corinna Vinschen
Yaakov Selkowitz
Christian Franke
Christopher Faylor