* fhandler_console.cc (fhandler_console::tcsetpgrp): Eliminate.
* fork.cc (fork_parent): Avoid returning same pid twice in a row regardless of
OS.
* pinfo.cc (pinfo::init): Rename create argument to flags and treat it as such.
* signal.cc (set_sigcatchers): New function.
(signal): Use set_sigcatchers to increment or decrement sigcatcher tracker.
(sigaction): Ditto. Add debugging output.
* spawn.cc (spawn_guts): Always quote first argv[0] argument when it's a
COMSPEC shell.
finding execed processes twice.
* signal.cc (kill_pgrp): Ditto.
* spawn.cc (spawn_guts): Avoid passing first argument to CreateProcess when
running a windows shell so that CreateProcess will locate the shell.
Reorganize so that correct error is returned when CreateProcess fails.
bindist targets to be more standard.
* config.guess: Update with the currently published file.
* config.sub: ditto.
* configure.in: Use value of build_alias instead of testing for
directory names to set BUILDENV.
* configure: ditto.
* lib/Makefile.in: Change the name of the targets install,
install-headers and install-libraries to xinstall, xinstall-headers
and xinstall-libraries for system target specified installation.
Recreate targets install, install-headers and install-libraries for
exec-prefix specified installation. Ditto for the uninstall targets of
the same name.
bindist targets to be more standard.
* config.guess: Update with the currently published file.
* config.sub: ditto.
* configure.in: Use value of build_alias instead of testing for
directory names to set BUILDENV.
* configure: ditto.
* lib/Makefile.in: Change the name of the targets install,
install-headers and install-libraries to xinstall, xinstall-headers
and xinstall-libraries for system target specified installation.
Recreate targets install, install-headers and install-libraries for
exec-prefix specified installation. Ditto for the uninstall targets of
the same name.
is not available.
* dcrt0.cc (sigthread::init): Ditto.
(dll_crt0_1): Move set_process_privileges call (temporarily?) to pinfo_init.
(pinfo_init): Only call set_process_privileges when allow_ntsec.
* environ.cc (conv_start_chars): Cache a table of "first
characters" for environment variables needing conversion.
(getwinenv): Use it.
(environ_init): Create it, also check first chars for TERM and
CYGWIN.
* path.cc: Use lookup table for case insensitive comparisons.
active.
* syscalls.cc (_read): Don't clear errno.
* sigproc.cc (wait_sig): Don't scan the waiting process list after a SIGCHLD if
there are no zombies to reap.
* winsup.h: Use __builtin_strcmp.
* environ.cc (posify): Don't initialize len unless it is required
(from DJ Delorie <dj@redhat.com>).
PROC_ADDCHILD. Return 0 when terminated child has just been reparented.
(wait_subproc): Only send SIGCHLD when proc_subproc returns != 0.
* strace.cc (strace::vsprntf): Only strip .exe extension from program name.
* Makefile.in: include fhandler_clipboard.o in DLL_OFILES list.
* fhandler.h: add FH_CLIPBOARD to the devices enum.
(fhandler_dev_clipboard): new
* path.cc (windows_device_names): add "\\dev\\clipboard"
(get_device_number): check for "clipboard"
* dcrt0.cc: declare a few more functions from winuser.h
* dtable.cc (dtable::build_fhandler): check for FH_CLIPBOARD in
switch().
than once.
* fhandler_tty.cc (fhandler_tty_slave::open): Protect some handles.
(fhandler_tty_common::close): Use proper name when closing handles.
(fhandler_pty_master::close): Don't close to_slave or from_slave since they've
already been closed earlier in the function.
* sigproc.cc (proc_subproc): Don't protect vchild->hProcess. Expect that the
caller will do this, instead.
* tty.cc (tty_list::terminate): Use proper name when closing handles.
(tty::make_pipes): Protect some handles.
* dcrt0.cc (dll_crt0_1): Call signal_fixup_after_exec where appropriate. Set
myself->uid from parent version. Just use ThreadItem Init method. Close or
store hexec_proc as appropriate.
(_dll_crt0): Store user_data->forkee here so that proper tests can be made
subsequently.
(do_exit): Remove hExeced stuff.
* environ.cc (environ_init): Accept environ count as well as environ pointer.
* environ.h: Reflect above change.
* pinfo.cc (pinfo_init): Ditto. Accept environ count.
(fixup_in_spawned_child): Remove.
* spawn.cc (spawn_guts): Move signal code to dll_crt0_1. Don't suspend execing
process since it is no longer necessary. Store envc.
* exceptions.cc (signal_fixup_after_exec): New function.
(call_handler): Remove hExeced test.
* child_info.h (cygheap_exec_info): Store envc as well as envp.
(child_info_spawn): Store hexec_proc so that it can be closed in child.
* path.cc (normalize_posix_path): Avoid intermediate use of temporary cwd buf.
(normalize_win32_path): Ditto.
(cwdstuff::get_initial): Always set lock.
* sigproc.h: Remove hExeced.
* strace.cc (strace::vsprntf): Modify to accomodate for lack of hExeced.
* thread.cc (MTinterface::Init): Merge Init1 and ClearReent into this method.
(MTinterface::Init1): Eliminate.
(MTinterface::ClearReent): Eliminate.
* thread.h: Reflect above changes.
* include/sys/strace.h (strace): Make microseconds() public. Make various
functions 'regparm', throughout.
* pinfo.h (_pinfo): Inline simple signal manipulation functions. Requires
inclusion of thread.h which was removed from .cc files, where appropriate.
throughout.
* pinfo.cc: Eliminate signal manipulation functions.
(_pinfo::exit): Calculate total rusage for exiting process here.
* cygheap.cc (size2bucket): Eliminate.
(init_buckets): Ditto.
(_cmalloc): Calculate size and bits in a loop rather than going through a
function call.
(_crealloc): Use stored array index to calculate allocated size.
* spawn.cc (spawn_guts): Use _pinfo exit method to exit, calculating cpu usage.
console_handler_thread_waiter. It is obsolete.
(ctrl_c_handler): Don't use console_handler_thread_waiter.
* path.cc (hash_path_name): Fix handling of relative names. Make case
insensitive.
* path.h (suffix_info): Use initializers.
* pinfo.h (_pinfo): Avoid initializers for null case.
* resource.cc (fill_rusage): Zero rest of rusage structure.
* security.cc (set_process_privileges): Don't reopen parent process. Just use
hMainProc.
* signal.cc (signal): Track when a signal handler has been used.
(sigaction): Ditto.
* sigproc.cc (pchildren): Use default initializer.
(zombies): Ditto.
(sigproc_terminate): Avoid closing handles that will be closed on exit anyway.
(wait_sig): Send signal to "parent" on EXECing, not FORKing.
(wait_subproc): Send SIGCHLD here rather than in proc_wait to avoid potential
muto conflicts.
* sigproc.h (sigthread): Don't initialize to zero. It's the default.
* spawn.cc (spawn_guts): Fill in resources from exec parent prior to
termination.
* sync.h (muto): Don't initialize to zero.
* syscalls.cc (close_all_files): Use one lock around entire loop and call
fhandler close/release stuff directly.
(_read): Don't use ready_for_read if there are not signal handlers active.
* dcrt0.cc (dll_crt0_1): Fix display of "title".
(do_exit): Use pinfo exit method to exit.
(__api_fatal): Ditto.
* exceptions.cc (signal_exit): Ditto.
* fork.cc (fork_child): Remove debugging stuff. Use pinfo_fixup_after fork in
place of exec_fixup_after_fork.
* pinfo.cc (pinfo_fixup_after_fork): New method.
(pinfo_fixup_in_spawned_child): Ditto.
(_pinfo::exit): New method.
(_pinfo::init): Remove recursion. Detect pathological case where pinfo
structure already exists for new pid.
* pinfo.h (_pinfo): Reorganize slightly. Add new method and new function
declarations.
* sigproc.cc (proc_exists): Previous simplification was a little to simple.
Try harder to detect if a process exists.
(proc_terminate): Use PID_EXITED setting to determine if process is still
around.
(WFSO): Remove debugging statement.
(WFMO): Ditto.
* spawn.cc (exec_fixup_after_fork): Eliminate.
(spawn_guts): Always set old_title to NULL. Is it really needed? Move
hexec_proc to pinfo.cc. Call pinfo_fixup_in_spawned_child to eliminate handle
link after a spawn.
* include/sys/cygwin.h: Remove PID_NOT_IN_USE. Add PID_EXITED.
* net.cc: Change meaning of member `s' of struct host_errmap.
(set_host_errno): Fix error in loop condition.
(hstrerror): Ditto.
(herror): Add appropriate functionality.
* include/netdb.h: Add declaration of hstrerror.
* include/cygwin/version.h: Bump CYGWIN_VERSION_API_MINOR to 29.
parent.
* dcrt0.cc (do_exit): Don't cleanup pinfo on exit. That happens automatically
now.
* exceptions.cc (signal_exit): Ditto.
* fork.cc (fork_parent): Use stack_here value passed in from fork().
(fork): Figure out top of stack here and pass it to fork_parent.
* pinfo.cc (_pinfo::record_death): Eliminate.
* pinfo.h (_pinfo): Ditto.
* sigproc.cc (proc_exists): Simplify.
(proc_terminate): Ditto.
(remove_zombie): Don't cleanup pinfo stuff.
(wait_sig): Send subproc_ready signal whether execed or spawned.
* spawn.cc (spawn_guts): Always create subproc_ready event. Use it for both
exec and spawn.
(_spawnve): Send proper mode to spawn_guts when mode != _P_OVERLAY.
(child_info): Move some fields from child_info_spawn to here.
* cygheap.cc: Make cygheap pointers NOCOPY.
* dcrt0.cc (dll_crt0_1): Copy cygwin heap here regardless of whether we've been
forked or execed.
* dtable.cc (dtable::fixup_after_fork): Just release close-on-exec fds.
* exceptions.cc (stackdump): Respond to C warning.
* fork.cc: Reorganize to minimize stack copying.
(fork_child): New function.
(fork_parent): Ditto.
(sync_with_child): Don't suspend the forkee.
(sync_with_parent): Ditto. Make into a function.
* heap.cc (heap_init): Add some debugging output.
* path.cc (path_conv::check): Add an assertion.
(has_suffix): Ditto.
* security.cc (get_pw_sid): Defend against NULL.
* sigproc.cc (proc_subproc): Fix debugging output.
(wait_sig): Ditto.
* strace.cc: Make statics NO_COPY throughout.
(strace::vsprntf): Defend against NULL.
* fhandler.cc (fhandler_base::fstat): Move to inline method in fhandler.h.
(fhandler_base::set_io_handle): Ditto.
* fhandler.h (fhandler_base): Make some methods inline.
* fhandler_console.cc (fhandler_console::write_normal): Make buffer larger.
* sigproc.h (sigframe::sigframe): Actually use set ebp parameter correctly.
* spawn.cc (spawn_guts): Set dwProcessId when exec'ing. Just exit immediately
after reparenting.
* syscalls.cc: Sprinkle sigframe stuff throughout.
* wait.cc (wait4): Set signal frame here.
* dcrt0.cc (__api_fatal): Don't rely on small_printf to display errors. Always
display problems to the console, if possible.
member function `init'.
* fhandler_mem.cc: Add typedefs for NT internal data types
`SYSTEM_INFORMATION_CLASS' and `SYSTEM_BASIC_INFORMATION'.
Add prototype for `NtQuerySystemInformation' function.
(fhandler_dev_mem::fhandler_dev_mem): Takes over initialization task
from `init'. Use `NtQuerySystemInformation' function to evaluate the
size of physical memory instead of interval search.
(fhandler_dev_mem::init): Eliminated.
(fhandler_dev_mem::open): Don't call `init'.
(fhandler_dev_mem::read): Eliminate check for `init_phase'.
(dummy_autoload): Add load statement for `NtQuerySystemInformation'.
more obvious.
* strace.cc (add_child): Just add child's pid directly.
(remove_child): No need to close the child process pid since ContinueDebugEvent
does that automatically.
(proc_child): Ditto for child thread.
settings.
(dtable::fixup_after_fork): Ditto.
* exceptions.cc (set_sig_errno): Remove some debugging output.
* path.cc (path_conv::check): Don't OR need_directory with flags sent to
symlink_info::check.
(symlink_info::check): Use PATH_ALL_EXEC to determine when a file is
executable.
* path.h (path_types): Add PATH_ALL_EXEC.
(isexec): Use PATH_ALL_EXEC so that cygexec types will be considered
executable.
* pinfo.h (_pinfo): Add a process handle that is kept open throughout the life
of a cygwin pid.
* sigproc.cc (proc_exists): Remove hopefully obsolete stuff.
(proc_subproc): Set up process handle that is kept open throughout the life of
a cygwin pid. Reorganize PROC_WAIT stuff to use common code.
(proc_terminate): Close pid lifetime process handle.
(checkstate): Cleanup.
(stopped_or_terminated): Move zombie cleanup.
(remove_zombie): To here.
* spawn.cc (spawn_guts): Reorganize reparenting code for 1247th time.
* include/subauth.h: Ditto.
* include/ipexport.h: Fix global header define not to contain
trailing underscore. Change layout according to standard.
* include/iphlpapi.h: Ditto.
* include/ipifcons.h: Ditto.
* include/iptypes.h: Ditto.
* include/ntdef.h: Ditto. Define conditional datatypes dependent
of inclusion of ntdecapi.h and subauth.h.
* lib/secur32.def: New stub for secur32.dll.
* fhandler.cc (fhandler_base::open): Ditto.
* fhandler.cc (fhandler_base::fhandler_base): Ditto.
(fhandler_base::read): Ditto. Add more debugging output. Don't issue a \r
when \r\n detected.
* pipe.cc (make_pipe): Streamline slightly. Make debug output more
interesting.
* strace.cc (strace::vsprintf): Use __progname where appropriate to distinguish
strace output when exec'ing.
Add `unit' member.
* fhandler_mem.cc (fhandler_dev_mem): Initialize `unit' as well.
(init): Care for differences between /dev/mem, /dev/kmem (not
implemented yet) and /dev/port.
(open): Change debug message to reflect the device.
(mmap): New function.
(munmap): Ditto.
(msync): Ditto.
(fstat): Use unit when setting st_dev in stat structure.
* mmap.cc (mmap): Handle MAP_ANONYMOUS flag.
Change error handling slightly.
* path.cc (get_device_number): Handle /dev/port.
specific call when appropriate.
(__set_winsock_errno): Rename from set_winsock_errno. Accept function and line
as arguments.
* path.cc (path_conv::check): Continue the neverending battle to make cygwin
properly understand that path specs ending in a slash require that the path
refer to a directory. Windows does not do this by default.
(symlink_info::check): Remove ENOTDIR test. Move it to path_conv::check.
* path.h: Remove obsolete constant.
* winsup.h (set_winsock_errno): New macro.
These changes require rebuilding all.
=====================================
* fhandler.h: Add mmap(), munmap() and msync() to fhandler_base
and fhandler_disk_file.
* mmem.cc (mmap): Eliminated device dependent implementation details.
These are moved to the appropriate fhandler class.
(munmap): Ditto.
(msync): Ditto.
(fhandler_base::mmap): New method.
(fhandler_base::munmap): Ditto.
(fhandler_base::msync): Ditto.
(fhandler_disk_file::mmap): Ditto.
(fhandler_disk_file::munmap): Ditto.
(fhandler_disk_file::msync): Ditto.
`mem_size' and `init_phase'.
* fhandler_mem.cc (init): New function to figure out the size of
the physical memory.
(open): Add checking for illegal flags. Change usage of access mode.
(write): Add intended functionality.
(read): Add parameter checking. Eliminate page size constant. Use
getpagesize() instead. Don't touch errno and don't create debug output
while init() is running.
(lseek): Add bounds checking. Fix SEEK_END.
(fstat): Eliminate page size constant. Use getpagesize() instead.
(dup): Add intended functionality.
(_cmalloc): Reorganize to accomodate muto locking.
(_cfree): Use muto lock to avoid multi-thread problems.
* cygheap.h (incygheap): Just use cygheap_max to find upper cygwin heap bounds.
* dcrt0.cc (dll_crt0_1): Reinstitute cygheap_init call.
* path.cc (getcwd): Just return cwdstuff::get result, allowing correct handling
of negative length.
(cwdstuff::get): Malloc a buffer if one is not available.
* dtable.cc (dtable::build_fhandler): Add case for FH_MEM.
* fhandler.h: Add FH_MEM device type. Add class fhandler_dev_mem.
* fhandler_mem.cc: New file. Implementation of class fhandler_dev_mem.
* path.cc: Add /dev/mem to windows_device_names.
(get_device_number): Add FH_MEM type.
(_csbrk): Make logic for detecting when to alloc cognizant of initialization
condition.
(_cmalloc): Use a structure to hold bucket size and heap chain pointer. Store
pointer to next freed block in bucket size location so that it will be easy to
see if a block is allocated.
(_cfree): Store pointer to next freed block in bucket size location.
(_crealloc): Use macro to retrieve bucket size.
(cygheap_init): Eliminate.
(cygheap_fixup_in_child): Add second argument to determine if we were execed or
not. In execed case, walk the heap, cleaning up any orphaned blocks.
* cygheap.h: Add a "MAX" value to cygheap_types. Remove cygheap_init
declaration. Accomodate new argument to cygheap_fixup_in child.
* fork.cc (fork): Accomodate extra argument to cygheap_fixup_in_child.
* dcrt0.cc (dll_crt0_1): Ditto. Remove call to cygheap_init.
(check_keys): New function. Perform checking keycodes.
(main): Add option `-k' for invoking check_keys.
Change option processing to use long options and getopt_long.
* cygkeycheck.cc: Removed. Functionality moved to `cygcheck.cc'.
* Makefile.in: Remove cygkeycheck from the dependencies.
subfunctions instead.
(get_9x_ifconf): New function for 9X systems, called by get_ifconf.
(get_nt_ifconf): New function for NT systems, called by get_ifconf.
(get_2k_ifconf): New function for W2K systems, called by get_ifconf.
* fhandler.h (fhandler_socket::~fhandler_socket): Delete declaration.
* net.cc: Remove unnecessary "number_of_sockets" usage.
(fhandler_socket::fhandler_socket): Ditto.
(fhandler_socket::~fhandler_socket): Delete definition.
* spawn.cc (spawn_guts): Force first argument passed to CreateProcess as a
command line to be windows style.
* environ.cc (environ_init): Remember to reparse CYGWIN if envp is
supplied.
* heap.cc (_sbrk): Remember frame for signal handling.
* syscalls.cc (read_handler): Eliminate.
(_read): Move read_handler code here. Reorganize for one path through
'ready_for_read'.
* path.cc (path::check): Detect trailing slash before converting to windows
path. Tell symlink_info::check to check for directory if one is found.
(symlink_info::check): Set errno when path is not a directory if pflags &
PATH_NEEDDIR.
points have the cygdrive prefix.
* (mount_info::add_reg_mount): Properly catch errors on registry operations.
* (mount_info::write_cygdrive_info_to_registry): Ditto.
* (mount_info::del_reg_mount): Cosmetic changes to be consistent with other
methods.
* (mount_info::add_item): Check arguments more precisely. Increment nmounts
only when registry operations succeed.
only.
(spawn_guts): Use methods for manipulating most newargv stuff.
* child_info.h (child_info_spawn::~child_info_spawn): Avoid memory leaks in
cygheap.
* spawn.cc (spawn_guts): Ditto.
* dcrt0.cc (quoted): Return next character after a quoted string when not doing
special quote processing. Also ensure that non-NULL is returned in all circumstances.
* spawn.cc (spawn_guts): Ensure that argv[0] is correctly set to the full path
when a script is detected. Suggested by Kazuhiro Fujieda
<fujieda@jaist.ac.jp>.
cygwin process after waiting 2 tenths of a second for it to terminate.
(forcekill): Add an extra argument determining whether to wait for the process
to exit.
* exceptions.cc (signal_exit): Don't terminate the main thread. Just try to
exit in this thread really quickly.
* signal.cc (kill_pgrp): Fix typo which caused pinfo structure to be assigned
incorrectly.
to strings of dots > 2 to be an error. Pass 'dir' argument to cygcwd.set.
(cwdstuff::set): Need to treat arguments from chdir differently.
* path.h (cwdstuff): Add an argument to set.
frame pointer rather than using this within the function, which is unstable
when this method is not inlined.
* net.cc: Eliminate use of second argument to sigframe.set throughout.
* select.cc (cygwin_select): Ditto.
* sigproc.cc (sig_send): Ditto.
throughout.
* shared.h: Remove.
* cygwin_version.h: New file.
* delqueue.h: New file.
* environ.h: New file.
* host_dependent.h: New file.
* perprocess.h: New file.
* registry.h: New file.
* security.h: New file.
Include sys/termios.h for files which need it.
* tty.h: New file.
* shared_info.h: New file.
* fhandler.h: Move inline methods that rely on tty stuff to
fhandler_console.cc.
* fhandler_tty.cc (fhandler_pty_master::process_slave_output): Set
output_done_event immediately after reading data to speed up tty output
processing.
(process_output): Set write_error to errno or zero.
(fhandler_tty_slave::write): Check previous write error prior to writing to
slave end of pipe. This allows tty output to be slightly less synchronous.
* fhandler_console.cc (fhandler_console::tcsetpgrp): Moved here from
fhandler.h.
(fhandler_console::set_input_state): Ditto.
(cwd_posix): Eliminate.
(cwd_hash): Eliminate.
(cwdstuff::init): Rename from cwd_init.
(cwdstuff::fixup_after_exec): Rename from cwd_fixup_after_exec.
(cwdstuff::get): Rename from get_cwd_inner.
(normalize_posix_path): Eliminate cwd argument. Just calculate when necessary.
(normalize_win32_path): Ditto.
(mount_info::conv_to_win32_path): Eliminate cwd retrieval here.
(mount_info::conv_to_posix_path): Ditto.
(hash_path_name): Accomodate additional methods in cwdstuff.
(get_cwd_win32): Eliminate.
(getcwd): Use cwdstuff methods. Properly handle case where buf == NULL and len
< 0.
(cwdstuff::get_hash): New method.
(cwdstuff::get_initial): New method.
(cwdstuff::set): New method.
(cwdstuff::get): New method.
(cwdstuff::copy): New method.
* path.h: Move cwdstuff struct here. Add a bunch of stuff to cwdstuff. Make
cygcwd an extern.
* spawn.cc (spawn_guts): Use copy method to get copies of cwd info to pass to
execed process.
* dcrt0.cc (dll_crt0_1): Use cygcwd methods for cwd initialization.
* child_info.h: Add specific exec class.
* cygheap.h: New file. Contains declarations for cygwin heap.
* cygheap.cc: New file. Implements cygwin heap functions.
* dcrt0.cc (quoted): Simplify due to new method for passing arguments between
cygwin programs.
(alloc_stack_hard_way): Attempt to handle overlapped stack.
(dll_crt0_1): Move child_info processing here. Accomodate new method for
passing arguments between cygwin programs. Initialize cygwin heap. Establish
__argc and __argv variables.
(_dll_crt0): Move most of child_info processing to dll_crt0_1.
(cygwin_dll_init): Remove duplication.
* dtable.cc (dtable::extend): Allocate dtable using cygwin heap.
(dtable::build_fhandler): Ditto for fhandler type being constructed.
(dtable::dup_worker): Free new fhandler from cygwin heap on error.
(dtable::select_*): Don't assume that this == fdtab.
(dtable::linearize_fd_array): Delete.
(dtable::delinearize_fd_array): Delete.
(dtable::fixup_after_exec): New file.
(dtable::vfork_child_dup): Use cygwin heap.
(dtable::vfork_parent_restore): Ditto.
* dtable.h: Remove obsolete methods. Add new method.
* environ.cc (posify): Eliminate already_posix parameter and logic.
(envsize): New function.
(_addenv): Use envsize.
(environ_init): Accept an argument pointing to an existing environment list.
If supplied, allocate space for this in the the program's heap.
* fhandler.cc (fhandler_base::operator =): Move here from fhandler.h. Use
cygwin heap to allocate filenames.
(fhandler_base::set_name): Allocate/free names from cygwin heap.
(fhandler_base::linearize): Delete.
(fhandler_base::de_linearize): Delete.
(fhandler_base::operator delete): Free from cygwin heap.
(fhandler_base::~fhandler_base): Ditto.
* fhandler.h: Accomodate elimination of *linearize and other changes above.
* fhandler_console.cc (fhandler_console::fixup_after_exec): Rename from
de_linearize.
* heap.h: New file.
* fhandler_tty.cc (fhandler_tty_slave::fhandler_tty_slave): Use cygwin heap for
name. fhandler_tty::fixup_after_exec): Rename from de_linearize.
* fork.cc (fork): Call cygheap_fixup_in_child.
* heap.cc: Use declarations in heap.h.
* malloc.cc: Sprinkle assertions throughout to catch attempts to free/realloc
something from the cygwin heap.
* path.cc: Throughout, eliminate use of per-thread cache for cwd. Use cwd_*
functions rather than cwd_* variables to access cwd_win32 and cwd_posix.
(cwd_win32): New function.
(cwd_posix): New function.
(cwd_hash): New function.
(cwd_fixup_after_exec): New function.
* path.h: Accomodate path.cc changes.
* pinfo.cc (pinfo_init): Accept a pointer to an environment table. Pass this
to environ_init. Eliminate old 'title' tests.
* pinfo.h: Accomodate above change in argument.
* spawn.cc (struct av): New method for building argv list.
(av::unshift): New method.
(spawn_guts): Allocate everything that the child process needs in the cygwin
heap and pass a pointer to this to the child. Build argv list using new
method. Eliminate delinearize stuff.
* thread.h: Eliminate _cwd_win32 and _cwd_posix buffers.
* winsup.h: Eliminate obsolete functions. Add envsize() declaration.
* exceptions.cc (unused_sig_wrapper): Remove _raise.
* sigproc.h (class sigframe): Default frames to skip to zero or suffer from
exuberant optimization.
* fhandler_tty.cc (fhandler_tty::write): Set appropriate errno when WriteFile
to pipe fails.
* pinfo.cc (pinfo::release): Move here from pinfo.h.
* sigproc.cc (proc_terminate): Remove bogus 'pinfo child' which caused strange
destruction of random regions of memory when destructor was invoked.
(_dll_crt0): To here.
(cygwin_dll_init): And here.
* external.cc (fillout_pinfo): Use more foolproof method for scanning for pids.
* pinfo.cc (set_myself): Eliminate myself_identity.init.
* sigproc.cc (wait_sig): Do it here instead to reduce the amount of time where
there could potentially be two processes with the same pid.
* spawn.cc (spawn_guts): Eliminate duplicate initialization.
* include/sys/cygwin.h: Mark unused PID_* elements.
exception handling on threads not created by cygwin.
* sigproc.cc (proc_terminate): Don't release pinfo structs since we are
exiting.
* include/sys/cygwin.h: Add CW_INIT_EXCEPTIONS.
(regopt): Use correct path to find LOCAL_MACHINE registry options.
* fhandler.cc (fhandler_base::open): Set binary mode only when binmode ==
O_BINARY.
* pipe.cc (pipe): Pipe handling should rely on binmode not _fmode now that the
two are different.
the process. Use new second argument to set_myself.
(cygwin_dll_init): Initialize exception list and constructor stuff here.
(_dll_crt0): And here. Also, deal with inherited pinfo shared memory region
from parent.
* pinfo.cc (set_myself): Accept a second argument signifying the a shared
memory region, passed from an execing parent.
(pinfo_init): Ditto.
* pinfo.h: Ditto.
* shared.h (child_info): Add a handle field to pass to child.
* spawn.cc (spawn_guts): Create a shared handle to pass to an execed child.
* winsup.h: Remove extraneous declaration.
required.
* errno.cc: Use DWORD to hold Windows errors.
(geterrno_from_win_error): New function.
(seterrno_from_win_error): Use geterrno_from_win_error to convert supplied
windows error (suggested by Corinna Vinschen).
* path.cc (symlink_info): Add error element.
* path.cc (path_conv::check): Remove errno setting. Use new symlink_info errno
element to set path_conv error, where appropriate.
(symlink_info::check): Set error element rather than attempting to manipulate
errno. Add more checks for trailing / and /.. even though they are currently
useless. Avoid setting EINVAL.
* path.cc (normalize_posix_path): Correct check for trailing /.
if fd is invalid. Return POLLERR for each valid fd if cygwin_select
returned with error.
include/sys/poll.h: Change POLLERR comment according to above change.
(cygwin_select): Move fd_set copying logic from ::wait to here. Use common
return through sell.poll.
(select_stuff::wait): Just return success or failure and let caller fill in
fd_set.
* pinfo.h (pinfo): Eliminate self-referential pointer to sidbuf since pinfo
structure exists at random locations now.
* fork.cc (fork): Use 'use_psid' element to control when the psid is relevant.
* shared.cc (sec_user): Ditto.
* spawn.cc (spawn_guts): Ditto.
* uinfo.cc (internal_getlogin): Ditto.
* syscall.cc (seteuid): Ditto. Set use_psid element.
since we are already bounds checked by default.
* thread.cc (ResourceLocks::Lock): Streamline this function since it is called
a lot.
(ReleaseResourceLock): Ditto.
recovery.
* spawn.cc (spawn_guts): Reorganize slightly to consolidate handling when there
is a CreateProcess error.
(_spawnve): Only longjmp back to vfork handling when a process has been
successfuly started.
* winsup.h (vfork_save): Extend to include frame info. Remove obsolete cpplus
conditionals.
* *.cc: put winsup.h before other headers (for __INSIDE_CYGWIN__);
use cur_environ() instead of just environ
* times.cc: remove import protections
* glob.c: add winsup.h
* localtime.c: ditto
* smallprint.c: ditto
* Makefile.in: don't __INSIDE_CYGWIN__ as it messes up profiling.
variable argument macros when possible.
* sigproc.cc: Throughout, use sigproc_printf rather than sip_printf.
* strace.cc (strace::prntf): Remove 'active' check, since callers are supposed
to ensure this.
(__system_printf): Remove. Subsumed by strace::prntf.
* winsup.h: Define "NEW_MACRO_VARARGS" to indicate when to use new macro
varargs capability.
(get_nonascii_key): Simplify previous patch to return ascii char if it is
non-zero. Add a second "temporary buffer" argument to help with thread safety.
* select.cc (peek_console): Pass a temporary buffer argument to
get_nonascii_key.
(forcekill): New function.
* ps.cc (main): Add '-W' option to list Windows pids as well as Cygwin pids.
(dummyprocessmodules): New function.
(GetModuleFileNameEx95): New function.
(init_win): New function.
(to_time_t): New function.
the changes below. Redefine process structure to avoid a fixed size table.
Redefine pinfo/_pinfo classes. Use these throughout.
* dcrt0.cc (dll_crt0_1): Accomodate set_myself argument change.
(__api_fatal): Accomodate _pinfo::record_death argument change.
* exceptions.cc (really_exit): Ditto.
(sig_handle_tty_stop): Use pinfo constructor to access process info.
(events_init): Don't create pinfo_mutex since it is no longer required.
* external.cc (fillout_pinfo): Use winpids class to iterate over all system
pids.
(cygwin_internal): lock_pinfo_for_update and unlock_pinfo are now noops.
* fhandler_termios.cc (fhandler_termios::set_ctty): Use pinfo constructor to
access process info.
* fork.cc (fork): Reorganize to initialize child info after the child has
started since that is when we know the child's winpid, which is necessary to
allocate the pinfo shared memory.
* mmap.cc (recreate_mmaps_after_fork): Change arg type to _pinfo.
* pinfo.cc: Rename pinfo methods to _pinfo throughout. Eliminate pinfo_list
stuff.
(set_myself): Accept a pid argument now. Call pinfo initializer to initialize
myself. Detect when this is an "execed" process and create an "indirect" pid
block.
(pinfo_init): Accomodate set_myself arg change.
(procinfo): Remove.
(pinfo::lock_pinfo): Remove.
(pinfo::unlock_pinfo): Remove.
(pinfo::init): New method. Allocates shared memory space for process pinfo
structure.
(pinfo::record_death): Don't call locking functions.
(cygwin_winpid_to_pid): Simplify by using new pinfo constructor.
(EnumProcessesW95): New function for iterating over processes on Windows 95.
(winpids::winpids): New constructor for winpids class. Sets up a list of
process ids.
(enum_init): Initialize w95/wnt pid enumerators.
* shared.cc (shared-info::initialize): Remove pid initialization.
* shared.h: Move pinfo stuff into pinfo.h.
(class shared_info): Remove pinfo_list element.
* signal.cc (kill_worker): Use pinfo constructor to access process info.
(kill_pgrp): Ditto. Use winpids methods to access list of processes.
* sigproc.cc: Throughout, modify to use _pinfo where appropriate.
(proc_exists (pid_t)): New function. Determines if a process exists based on
the pid.
(proc_exists (_pinfo *p): Use new proc_exists function above.
(proc_subproc): Copy pinfo stuff around rather than _pinfo pointers. Try to be
careful about releasing shared memory when we don't need it anymore. Remove
pinfo locks.
(remove_zombies): Remove pinfo memory when zombie is going away.
* sigproc.h: Reflect _pinfo/pinfo changes in sigproc.cc.
* spawn.cc (spawn_guts): Eliminate pinfo *child argument. Reorganize to only
initialize child pinfo after process has been started and we know the windows
pid.
(_spawnve): Reflect spawn_guts changes.
* syscalls.cc (setpgid): Use pinfo constructor to access process info.
(getpgid): Ditto.
(internal_getlogin): Use _pinfo.
* winsup.h: Eliminate pinfo_mutex. Eliminate spawn_guts declaration since it
is static now. Reflect set_myself argument change.
* include/sys/cygwin.h: Add some PID_* enums to accomodate new pinfo stuff.
* include/cygwin/version.h: Update minor version for cygdrive changes below.
* lib/cygwin_crt0.c: Inexplicably need to define alloca for newer compilers.
* fhandler.h (fhandler_console): Add new method.
* fhandler.cc (fhandler_console::set_cursor_maybe): New method.
(fhandler_console::read): Set cursor if it has moved to make it visible.
* external.cc (get_cygdrive_prefixes): New function.
(cygwin_internal): Add CW_GET_CYGDRIVE_PREFIXES case.
* path.cc (mount_info::read_cygdrive_info_from_registry): Read system cygdrive
prefix if user one is undefined.
(mount_info::write_cygdrive_info_to_registry): Write cygdrive prefix to the
appropriate registry hive. Overwrite in-memory copy of cygdrive, if
appropriate.
(mount_info::remove_cygdrive_info_from_registry): New method.
(mount_info::get_cygdrive_prefixes): New method.
(cygwin_umount): Remove cygdrive prefix, if appropriate.
* registry.cc (reg_key::killvalue): New method.
* shared.h (class reg_key): Add killvalue, remove_cygdrive_info_to_registry,
and get_cygdrive_prefixes declarations.
* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_GET_CYGDRIVE_PREFIXES.
- 'Why is gcc failing'
- 'Why can't bison find bison.simple or bison.hairy?'
Remove disclaimer from up-to-date entries (possibly with some minor changes):
- 'How is fork() implemented?'
- 'How do symbolic links work?'
- 'How do I compile a Win32 executable that doesn't use Cygwin?'
- 'How do I make the console window go away?'
- 'Why does make complain about a "missing separator"?'
- 'Why can't we redistribute Microsoft's Win32 headers?'
- 'How can I debug what's going on?'
- 'Can I use a system trace mechanism instead?'
- 'Can I use the gdb debugger to debug programs built by VC++?'
- 'Where can I find info on x86 assembly?'
- 'Why not use DJGPP?'
Christopher Faylor
DJ Delorie
Earnie Boyd
David Starks-Browning
Corinna Vinschen
Egor Duda