* cygwin.din (pututline): New exported function.
* syscalls.cc (login): Use pututiline().
(setutent): Open utmp as read/write.
(endutent): Check if utmp file is open.
(utmpname): call endutent() to close current utmp file.
(getutid): Enable all cases, use strncmp() to compare ut_id fields.
(pututline): New.
* tty.cc (create_tty_master): Set ut_pid to current pid.
minchars.
(fhandler_serial::ioctl): Set errno if the ClearCommError fails.
(fhandler_serial::tcsetattr): Use correct value for vmin_.
(fhandler_serial::tcgetattr): Ditto.
size is equal to the old one. Send SIGWINCH if slave connected to a pseudo
tty.
(fhandler_pty_master::ioctl): Do nothing if the new window size is equal to the
old one.
* pinfo.h (SIGCOMMUNE): New signal type.
(commune_result): New structure for commune functions.
(picom): New enum for commune functions.
(_pinfo::hello_pid): New. Pid who's communicating with me.
(_pinfo::tothem): New. Handle of communicating pipe.
(_pinfo::fromthem): Ditto.
(_pinfo::commune_recv): Declare.
(_pinfo::commune_send): Declare.
(_pinfo::alive): Declare.
(_pinfo::cmdline): Declare.
(_pinfo::lock): Declare.
* pinfo.cc (set_myself): Initialize new _pinfo lock.
(_pinfo::alive): Define. Determines if process still exists.
(_pinfo::commune_recv): Define. Receive info from another cooperating process.
(_pinfo::commune_send): Define. Send info to another cooperating process.
(_pinfo::cmdline): Define. Determine command line of a given process.
* include/sys/cygwin.h (CW_CMDLINE): Define.
*sigproc.cc (talktome): Communicate with any processes who want to talk to me.
(wait_sig): Honor __SIGCOMMUNE.
* fhandler.cc (fhandler_virtual::fixup_after_exec): Declare.
* fhandler_proc.cc: Use malloc/free/realloc throughout rather than cmalloc
since buffers don't need to be propagated to subprocesses.
* fhandler_registry.cc: Ditto.
* fhandler_virtual.cc: Ditto.
(fhandler_virtual::fixup_after_exec): Define.
* fhandler_process.cc: Ditto for malloc/free/realloc.
(process_listin): Add "cmdline".
(fhandler_process::fill_filebuf): Implement PROCESS_CMDLINE.
* miscfuncs.cc (isalpha_array): New array populated with xor values for alpha
characters to switch from one case to another.
* string.h (cygwin_strcasematch): New asm implementation of case match.
* string.h (cygwin_nstrcasematch): New asm implementation of counted case
match.
(cygthread::initialized): Delete.
(cygthread::stub): Use exiting variable to determine when to exit.
(cygthread::runner): Delete.
(cygthread_protect): New variable.
(cygthread::init): Don't start runner thread. Initialize muto for list
protection.
(cygthread::freerange): Return pointer to cygthread.
(cygthread::operator new): Change logic to start threads on an as-needed basis.
(cygthread::detach): Don't zero id.
(cygthread::terminate): Don't kill any executing threads. Just set exiting
flag.
* cygthread.h (cygthread): Reflect above changes.
* dcrt0.cc (dll_crt0_1): Move cygthread initialization later.
* fork.cc (fork_child): Do fdtab fixup after dll fixup or (apparently) winsock
may allocate memory in dll load address.
cygheap->user, return the uid or gid from myself.
* security.cc (alloc_sd): If gid == myself->gid, return the group sid from
cygheap->user. Remove the test for uid == original_uid, which is
counter-productive.
(init_cheap): Ditto for declaration.
* fork.cc (fork_parent): Use user_heap element in cygheap.
* heap.h (inheap): Ditto.
* heap.cc (sbrk): Ditto.
(heap_init): Ditto. Reorganize to shrink heap chunk as required and record new
value in cygheap.
* dcrt0.cc (dll_crt0_1): More "move the cygthread init" games.
* shared.cc (open_shared): Rework memory protection to properly deal with
relocated shared segment.
(shared_info::heap_chunk_size): Rename element to 'heap_chunk'.
* shared_info.h (shared_info): Ditto for declaration.
* strace.cc (strace::hello): Report on heap chunk size from cygheap since it
may shrink.
* cygwin.din: Remove last vestiges (?) of newlib wrappers.
* cygthread.cc (cygthread::detach): Always wait for event or suffer an
apparently inavoidable race.
* dcrt0.cc (dll_crt0_1): Allocate threads after stack has been relocated.
* debub.cc (lock_debug): Don't acquire lock on exit.
* fork.cc (fork_child): Recreate mmaps before doing anything else since Windows
has a habit of using blocks of memory in the child that could previously have
been occupied by shared memory in the parent.
* mmap.cc (fhandler_disk_file::fixup_mmap_after_fork): Issue error here and
provide some details about what went wrong.
(fixup_mmaps_after_fork): Remove error message.
* shared.cc (open_shared): Move warning message so that more detail is
possible.
* sigproc.cc (sigproc_init): Initialize sync_proc_subproc to avoid a race.
(sigproc_terminate): Specifically wait for process thread to terminate.
Rename _pid() to pid() throughout.
* Makefile.in: Compile some objects with -fomit-frame-pointer.
* cygwin.din: Reverse aliasing for _kill.
* syscalls.cc (_getpid_r): New function, implemented for newlib compatibility.
* shared.cc (open_shared): Remove reserving of memory since previous change
eliminate the need for this hack.
* fork.cc (fork_child): Initialize cygwin thread later in process to avoid
allocating memory for thread stacks.
* shared.cc (open_shared): Issue warning if NT and shared segment is relocated.
* shared.cc (shared_info::heap_chunk_size): Store info as megabytes. Search
HKEY_LOCAL_MACHINE as well as HKEY_CURRENT_USER.
* shared_info.h (shared_info::initial_heap_size): Change element name to
reflect new functionality.
* strace.cc (strace::hello): Report on initial heap size.
* dtable.h (dtable::set_file_pointers_for_exec): Declare new function.
* spawn.cc (spawn_guts): Call dtable::set_file_pointers_for_exec to set
pointers to EOF when execing non-cygwin applications.
Corinna Vinschen
Christopher Faylor
Pierre Humblet
Robert Collins