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* new-features.sgml (ov-new1.7.12): Create. Move mountinfo here.

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Add /dev notice.
	* pathnames.sgml (pathnames-posixdevices): Rephrase to account for
	/dev change in 1.7.12.
This commit is contained in:
Corinna Vinschen 2012-03-29 18:23:32 +00:00
parent 9ca7bca3c3
commit b255aece50
3 changed files with 41 additions and 15 deletions
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7
winsup/doc/ChangeLog
View File

@ -1,3 +1,10 @@
2012-03-27 Corinna Vinschen <corinna@vinschen.de>
* new-features.sgml (ov-new1.7.12): Create. Move mountinfo here.
Add /dev notice.
* pathnames.sgml (pathnames-posixdevices): Rephrase to account for
/dev change in 1.7.12.
2012-03-27 Corinna Vinschen <corinna@vinschen.de>
* new-features.sgml (ov-new1.7.11): Add mountinfo.

21
winsup/doc/new-features.sgml
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@ -1,5 +1,22 @@
<sect1 id="ov-new1.7"><title>What's new and what changed in Cygwin 1.7</title>
<sect2 id="ov-new1.7.12"><title>What's new and what changed from 1.7.11 to 1.7.12</title>
<itemizedlist mark="bullet">
<listitem><para>
Cygwin now automatically populates the /dev directory with all existing
POSIX devices.
</para></listitem>
<listitem><para>
Add virtual /proc/PID/mountinfo file.
</para></listitem>
</itemizedlist>
</sect2>
<sect2 id="ov-new1.7.11"><title>What's new and what changed from 1.7.10 to 1.7.11</title>
<itemizedlist mark="bullet">
@ -18,10 +35,6 @@ creating the cygdrive directory. If Windows claims the drive is
unavailable, don't show it in the cygdrive directory listing.
</para></listitem>
<listitem><para>
Add virtual /proc/PID/mountinfo file.
</para></listitem>
<listitem><para>
Raise default stacksize of pthreads from 512K to 1 Meg. It can still be
changed using the pthread_attr_setstacksize call.

28
winsup/doc/pathnames.sgml
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@ -689,19 +689,25 @@ Read on for more information.</para>
</sect2>
<sect2 id="pathnames-posixdevices"> <title>POSIX devices</title>
<para>There is no need to create a POSIX <filename>/dev</filename>
directory as Cygwin automatically simulates it internally.
These devices cannot be seen with the command <command>ls /dev/</command>
although commands such as <command>ls /dev/tty</command> work fine.
If you want to be able to see all well-known devices in
<filename>/dev/</filename>, you can use Igor Pechtchanski's
<ulink
url="http://cygwin.com/ml/cygwin/2004-03/txt00028.txt">create_devices.sh</ulink>
script. This script does not add the raw disk devices, though. Again,
it's not necessary to see an existing device in /dev to access it. The script
is just for the fun of it.
<para>While there is no need to create a POSIX <filename>/dev</filename>
directory, the directory is automatically created as part of a Cygwin
installation. It's existence is often a prerequisit to run certain
applications which create symbolic links, fifos, or UNIX sockets in
<filename>/dev</filename>. Also, the directories <filename>/dev/shm</filename>
and <filename>/dev/mqueue</filename> are required to exist to use named POSIX
semaphores, shared memory, and message queues, so a system without a real
<filename>/dev</filename> directory is functionally crippled.
</para>
<para>Apart from that, Cygwin automatically simulates POSIX devices
internally. Up to Cygwin 1.7.11, these devices couldn't be seen with the
command <command>ls /dev/</command> although commands such as
<command>ls /dev/tty</command> worked fine. Starting with Cygwin 1.7.12,
the <filename>/dev</filename> directory is automagically populated with
existing POSIX devices by Cygwin in a way comparable with a
<ulink url="http://en.wikipedia.org/wiki/Udev">udev</ulink> based virtual
<filename>/dev</filename> directory under Linux.</para>
<para>
Cygwin supports the following character devices commonly found on POSIX systems:
</para>