127 lines
4.3 KiB
Plaintext
127 lines
4.3 KiB
Plaintext
What's new:
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-----------
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- New getconf tool for querying confstr(3), pathconf(3), sysconf(3), and
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limits.h configuration.
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- New tzset utility to generate a POSIX-compatible TZ environment
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variable from the Windows timezone settings.
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- The passwd tool now allows an administrator to use the -R command for
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other user accounts: passwd -R username.
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- Experimental: Change the way sockets are created so that Cygwin always
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circumvents so-called "layered service providers" (LSPs) starting with
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Windows Vista.
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- signal handler functions are now dispatched in threads other than the
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main thread.
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- Support NcFsd filesystem.
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- clock_gettime(3) and clock_getres(3) accept per-process and per-thread
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CPU-time clocks, including CLOCK_PROCESS_CPUTIME_ID and
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CLOCK_THREAD_CPUTIME_ID.
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- New pthread functions:
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- Spin Locks: pthread_spin_destroy, pthread_spin_init, pthread_spin_lock,
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pthread_spin_trylock, pthread_spin_unlock.
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- Stack management: pthread_attr_getstack, pthread_attr_getstackaddr,
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pthread_attr_getguardsize, pthread_attr_setstack, pthread_attr_setstackaddr,
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pthread_attr_setguardsize, pthread_getattr_np.
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- Clock Selection: pthread_getcpuclockid, pthread_condattr_getclock,
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pthread_condattr_setclock.
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- Scheduling: pthread_setschedprio.
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- Signalling: pthread_sigqueue.
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- Add /proc/devices, /proc/misc, /proc/sysvipc, /proc/swaps.
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- Make various system functions thread cancelation points per POSIX.
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- Add ioctl FIONREAD handling for non-sockets.
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- dlopen now supports the Glibc-specific RTLD_NODELETE and RTLD_NOOPEN flags.
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- The printf and wprintf families of functions now support the %m conversion
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flag.
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- Execed processes now inherit the children of their predecessor.
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- Fifos have been rewritten and should now be more reliable.
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- GNU/glibc error.h error reporting functions: error, error_at_line,
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error_message_count, error_one_per_line, error_print_progname.
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- C99 <tgmath.h> type-generic macros.
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- Other new API: clock_getcpuclockid, clock_nanosleep, clock_settime, __fpurge,
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get_current_dir_name, getgrouplist, getpt, ppoll, psiginfo, psignal,
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ptsname_r, sys_siglist, sysinfo.
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- cygwin_conv_path_list finally supports CCP_WIN_W_TO_POSIX and
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CCP_POSIX_TO_WIN_W conversions.
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What changed:
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-------------
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- Drop support for Windows NT4.
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- The CYGWIN=tty mode using pipes to communicate with the console in a pseudo
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tty-like mode has been removed. Either just use the normal Windows console
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as is, or use a terminal application like mintty.
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- The CYGWIN environment variable options "envcache", "strip_title", "title",
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"tty", and "upcaseenv" have been removed.
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- New heap management. Drop registry setting "heap_chunk_in_mb" in favor of
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a new per-executable setting in the executable file header which can be set
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using the peflags tool. Drop registry setting "heap_slop_in_mb" entirely.
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- Revamp console and pseudo tty handling. Rename /dev/ttyX to /dev/consX,
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/dev/ttyX to /dev/ptyX.
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- Improve fork/exec performance on 64 bit systems.
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- Improve Ctrl-C handling in console.
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- Try harder to let fork not fail if DLLs are moved in memory which should,
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in some cases, minimize the need for rebaseall.
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- Try harder to send SIGHUP to children when process group leader fails.
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- Deal with Windows problem where non-blocking pipe I/O was not flushed
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properly on close.
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- Attempt to regularize most syscall-related strace output.
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- Improve behavior of Cygwin when started from a 64-bit process, especially
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under Windows 2003.
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- Improve multi-thread/reentrancy safety with syscalls that deal with fds.
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- dlopen can now find "cygFOO.dll", even if the caller specified "libFOO.so".
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This is supposed to support applications which are no aware of Windows DLLs.
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- Make accept(2), poll(2) and shutdown(2) behave more like on Linux.
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- Raise max number of mount points from 30 to 64.
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- Output of /proc/maps is closer to what Linux prints and much more useful to
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examine process VM layout.
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- /proc/loadavg now shows the number of currently running processes and the
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total number of processes.
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- /proc/version now shows the username of whomever compiled the Cygwin DLL
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as well as the version of GCC used when compiling.
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- Various assorted bugfixes and improvements.
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- Preliminary, no guarantee, may be broken in subtle ways, Windows 8 support.
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