Richard Earnshaw [Thu, 15 Mar 2018 09:55:11 +0000 (09:55 +0000)]
[arm] Fix syscalls.c for newlib embedded syscalls builds
Newlib has a build configuration where syscalls can be directly
embedded in the newlib library rather than relying on libgloss.
This configuration was broken recently by an update to the libgloss
support for Arm that was not propagated to the syscalls interface in
newlib itself. This patch restores the build. It's essentially a
copy of https://sourceware.org/ml/newlib/2018/msg00128.html but there
are some other minor cleanups and changes that I've made at the same
time. None of those cleanups affect functionality.
The prototypes of the following functions have been updated: _link,
_sbrk, _getpid, _write, _swiwrite, _lseek, _swilseek, _read and
_swiread.
Signed-off-by: Richard Earnshaw <Richard.Earnshaw@arm.com>
Corinna Vinschen [Wed, 14 Mar 2018 09:36:34 +0000 (10:36 +0100)]
ctype: align size of category bit fields to small targets needs
E.g. arm ABI requires -fshort-enums for bare-metal toolchains.
Given there are only 29 category enums, the compiler chooses an
8 bit enum type, so a size of 11 bits for the bitfield leads to
a compile time error:
error: width of 'cat' exceeds its type
enum category cat: 11;
^~~
Fix this by aligning the size of the category members to byte
borders.
Thomas Wolff [Tue, 13 Mar 2018 17:26:19 +0000 (18:26 +0100)]
fix/enhance Unicode table generation scripts
Scripts do not try to acquire Unicode data by best-effort magic anymore.
Options supported:
-h for help
-i to copy Unicode data from /usr/share/unicode/ucd first
-u to download Unicode data from unicode.org first
If (despite of -i or -u if given) the necessary Unicode files are not
available locally, table generation is skipped, but no error code is
returned, so not to obstruct the build process if called from a Makefile.
Corinna Vinschen [Wed, 14 Mar 2018 09:36:34 +0000 (10:36 +0100)]
ctype: align size of category bit fields to small targets needs
E.g. arm ABI requires -fshort-enums for bare-metal toolchains.
Given there are only 29 category enums, the compiler chooses an
8 bit enum type, so a size of 11 bits for the bitfield leads to
a compile time error:
error: width of 'cat' exceeds its type
enum category cat: 11;
^~~
Fix this by aligning the size of the category members to byte
borders.
Corinna Vinschen [Mon, 12 Mar 2018 14:26:12 +0000 (15:26 +0100)]
Cygwin: AF_UNIX: store per-socket info in shared memory
Per-socket info in fhandler isn't correctly shared between multiple
instances of th same descriptor. Implement a basic shared info which
is shared between all instances of a socket.
This also requires to move the fhandler_socket status bits into
fhandler_socket_wsock since the data is moved to the shared region
for AF_UNIX sockets.
Also, drop backing file requirement for socketpair server socket.
This will be handled differently in recvmsg/sendmsg.
Thomas Wolff [Fri, 9 Mar 2018 12:30:33 +0000 (13:30 +0100)]
use generated character data
The tow* functions use an included case conversion table which can be
generated from Unicode data.
The isw* functions use a character categories table (provided by
categories.c) which can be generated from Unicode data.
Delegation between current-locale and specific-locale-dependent functions
was reverted towards the generic locale-dependent functions (*_l.c);
this is however only relevant on systems with non-Unicode wide character
locales, thus not on Cygwin.
Thomas Wolff [Sun, 25 Feb 2018 15:30:27 +0000 (16:30 +0100)]
generated character category data, Unicode 10.0
Table categories.t and tag enumeration categories.cat provide
character class data for most of the isw* functions.
These data are generated from Unicode data.
Bad idea. A file hidden from directory listings is not seen by
rm either, so it never calls unlink for the file and a recursive
removal of the parent directory fails with "directory not empty".
* Use correct cygwait/WFSO invocation to not die on cancel and signals
uncontrolled.
* Manage io handles under io_lock.
* Copy peer address to user space under SEH to avoid a resource leak.
Cygwin: AF_UNIX: make sure connect wait thread is cleanly interruptible
Using TerminateThread potentially leaks resources. In our case,
the connect wait thread may be forcefully terminated after
having successfully opened a client side pipe handle. If this
occurs, we have a stale pipe server instance, so the pipe will
never be closed as long as the process lives.
Avoid this by changing the npfs handle to non-blocking, so we can
wait on a termination event object from inside the thread itself
and cleanly exit from the thread instead of terminating.
Cygwin: move sun_name_t constructors into fhandler_socket_unix.cc
They are only used there anyway and it allows to use the AF_UNIX
macro without tweaking header files. While at it, improve
both constructors. The default constructor now creates the name
of an unnamed socket, the constructor taking parameters carefully
checks its input.
Thomas Wolff [Fri, 2 Mar 2018 19:21:09 +0000 (20:21 +0100)]
Locale modifier @cjkwide to adjust ambiguous-width in non-CJK locales
Locale modifier @cjkwide makes Unicode "ambiguous width" characters
wide. So ambiguous width characters can be enforced to have width 2
even in non-CJK locales. This gives e.g. users of "Powerline symbols"
the opportunity to adjust their width to the desired behaviour (and the
behaviour apparently expected by some tools) without having to set a CJK
locale and without losing consistence of terminal character width with
wcwidth/wcswidth locale width.
This function is going to be used for transposing sun_path of
abstract sockets. This also adds a transposition of the NUL
character to tfx_chars since NUL-bytes in abstract socket names
are perfectly valid.
Cygwin: add AF_UNIX reparse points to path handling
* check_reparse_point_target returns a path flag mask, rather than
just 1. Return PATH_SYMLINK | PATH_REP for symlinks and directory
mount points, PATH_SOCKET | PATH_REP for AF_UNIX sockets.
* Define Cygwin AF_UNIX socket reparse tag and GUID in ntdll.h.
Corinna Vinschen [Mon, 26 Feb 2018 19:39:48 +0000 (20:39 +0100)]
Cygwin: reduce size of fhandler_cygdrive
fhandler_cygdrive has a size of 696 bytes on x86_64, while the next
biggest fhandler type, fhandler_pty_master, is 584 bytes. The members
responsible for the size are private to opendir/readdir/closedir usage.
fhandler_disk_file stores private readdir data in DIR->__d_internal
instead. Use equivalent method with fhandler_cygdrive. This drops
the size to 464 bytes.
Corinna Vinschen [Fri, 23 Feb 2018 14:24:18 +0000 (15:24 +0100)]
Cygwin: encapsulate Winsock based fhandler_socket classes
Insert another class fhandler_socket_wsock between fhandler_socket
and fhandler_socket_inet/fhandler_socket_local.
Also, add a new method fhandler::is_wsock_socket to allow asking
for sockets in general (is_socket) vs. Winsock-based sockets
(is_wsock_socket).
This allows to develop a new handler_socket_unix class as derived
class from fhandler_socket without any trace of wsock code left
in fhandler_socket.
While this is basically a temporary measure at this time, it may
prove useful for later interoperability with the upcoming Windows 10
AF_UNIX implementation at one point.
Corinna Vinschen [Fri, 23 Feb 2018 12:32:51 +0000 (13:32 +0100)]
Cygwin: drop unused device nodes and clean up socket devices
* Rename DEV_TCP_MAJOR to DEV_SOCK_MAJOR
* Drop FH_TCP, FH_UDP, FH_ICMP in favor of single FH_INET
* Drop FH_UNIX, FH_STREAM, FH_DGRAM in favor of single FH_LOCAL
Corinna Vinschen [Wed, 21 Feb 2018 20:40:01 +0000 (21:40 +0100)]
Cygwin: split out fhandler_socket into inet and local classes
First cut, still incomplete
* fhandler_socket is now base class for other socket classes
* fhandler_socket_inet handles AF_INET and AF_INET6 sockets
* fhandler_socket_local handles AF_LOCAL/AF_UNIX sockets
* finally get rid of fdsock by using set_socket_handle in accept4
* align file-related calls (fstat, fstatvfs, fchown, fchmod, facl)
to Linux.
git://sourceware.org / newlib-cygwin.git / log