[PATCH] Cygwin: console: Make the console accessible from other terminals.
Takashi Yano
takashi.yano@nifty.ne.jp
Thu Dec 22 09:06:03 GMT 2022
On Wed, 21 Dec 2022 13:56:25 +0100
Corinna Vinschen wrote:
> However, there's something broken with these patches in terms of
> debugging:
>
> With current origin/master:
>
> $ ls -l /dev/cons0
> crw-rw-rw- 4 corinna vinschen 3, 0 Dec 21 13:46 /dev/cons0
> $ strace -o xxx /bin/ls /dev/cons0
> /dev/cons0
>
> After applying "pinfo: Align CTTY behavior to the statement of POSIX."
>
> $ ls -l /dev/cons0
> crw-rw-rw- 4 corinna vinschen 3, 0 Dec 21 13:51 /dev/cons0
> $ strace -o xxx /bin/ls /dev/cons0
> /usr/bin/ls: cannot access '/dev/cons0': No such device or address
>
> "devices: Make generic console devices invisible from pty." doesn't
> change this, but after applying "console: Make the console accessible
> from other terminals.":
>
> $ ls -l /dev/cons0
> crw------- 4 corinna vinschen 3, 0 Dec 21 13:55 /dev/cons0
> $ strace -o xxx /bin/ls /dev/cons0
> 670400 [main] ls 1630 C:\cygwin64\bin\ls.exe: *** fatal error - MapViewOfFileEx '(null)'(0x54), Win32 error 487. Terminating.
> 674526 [main] ls 1630 cygwin_exception::open_stackdumpfile: Dumping stack trace to ls.exe.stackdump
>
> FWIW:
>
> $ strace -o xxx /bin/ls
> 673796 [main] ls 1633 C:\cygwin64\bin\ls.exe: *** fatal error - MapViewOfFileEx '(null)'(0x54), Win32 error 487. Terminating.
> 676814 [main] ls 1633 cygwin_exception::open_stackdumpfile: Dumping stack trace to ls.exe.stackdump
Thank you for finding this. I think this can be easily fixed.
Please see v3 patch.
[PATCH v3] Cygwin: pinfo: Align CTTY behavior to the statement of POSIX.
--
Takashi Yano <takashi.yano@nifty.ne.jp>
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