procmon doesn't capture cygwin's process arguments
Brian Inglis
Brian.Inglis@SystematicSw.ab.ca
Sun Nov 1 21:41:55 GMT 2020
On 2020-11-01 10:59, Oleksandr Gavenko via Cygwin wrote:
> I tried to find out what processes emacs-w32 is starting for my custom
> TRAMP method.
>
> "strace -f emacs-w32" fails.
>
> I expected to succeed with procmon & its filter " Command/ Process Start".
>
> Unfortunately procmon [1] doesn't report "argv" if a Cygwin executable is
> started from a Cygwin executable. If I run a Cygwin app from the Windows
> environment it captures positional arguments.
>
> Is there some option to make positional arguments visible to procmon?
>
> I could find it in:
>
> * https://cygwin.com/cygwin-ug-net/using-cygwinenv.html
> * https://cygwin.com/cygwin-ug-net/setup-env.html
>
> Please keep my email in CC...
>
> [1] https://docs.microsoft.com/en-us/sysinternals/downloads/procmon
Package procps-ng /usr/bin/procps, and /proc/*/cmdline (null terminated args):
$ procps -aeflw
Suggest:
$ alias cyg-proc=/usr/bin/proc
$ alias proc=/usr/bin/procps
$ head /proc/*/cmdline | cat -A; echo
see attached logs for output.
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]
-------------- next part --------------
$ head /proc/*/cmdline | cat -A; echo
==> /proc/17834/cmdline <==$
/bin/sh^@/usr/bin/startxwin^@$
==> /proc/17934/cmdline <==$
xinit^@/etc/X11/xinit/startxwinrc^@--^@/usr/bin/XWin^@:0^@-multiwindow^@-auth^@$HOME/.serverauth.17834^@$
==> /proc/17935/cmdline <==$
/usr/bin/XWin^@:0^@-multiwindow^@-auth^@$HOME/.serverauth.17834^@$
==> /proc/17938/cmdline <==$
/usr/bin/xwin-xdg-menu^@$
==> /proc/17951/cmdline <==$
dbus-launch^@--sh-syntax^@--exit-with-session^@$
==> /proc/17952/cmdline <==$
/usr/bin/dbus-daemon^@--fork^@--print-pid^@5^@--print-address^@7^@--session^@$
==> /proc/17956/cmdline <==$
/usr/bin/gnome-keyring-daemon^@--start^@--components=pkcs11^@$
==> /proc/17964/cmdline <==$
/usr/bin/fbxkb^@$
==> /proc/17966/cmdline <==$
/usr/libexec/gam_server^@$
==> /proc/32326/cmdline <==$
ssh-agent^@$
==> /proc/34859/cmdline <==$
pcmanfm^@$
==> /proc/349/cmdline <==$
/usr/bin/mintty^@-s^@120x60^@-p^@210,120^@-^@$
==> /proc/350/cmdline <==$
-bash^@$
==> /proc/374/cmdline <==$
/usr/bin/cygrunsrv$
==> /proc/375/cmdline <==$
/usr/bin/cygrunsrv$
==> /proc/376/cmdline <==$
/usr/sbin/cygserver$
==> /proc/377/cmdline <==$
/usr/bin/cygrunsrv$
==> /proc/378/cmdline <==$
/usr/sbin/cron$
==> /proc/379/cmdline <==$
/usr/sbin/syslog-ng$
==> /proc/41273/cmdline <==$
/usr/bin/xman^@-pagesize^@600x800+1300+200^@$
==> /proc/42875/cmdline <==$
head^@/proc/17834/cmdline^@/proc/17934/cmdline^@/proc/17935/cmdline^@/proc/17938/cmdline^@/proc/17951/cmdline^@/proc/17952/cmdline^@/proc/17956/cmdline^@/proc/17964/cmdline^@/proc/17966/cmdline^@/proc/32326/cmdline^@/proc/34859/cmdline^@/proc/349/cmdline^@/proc/350/cmdline^@/proc/374/cmdline^@/proc/375/cmdline^@/proc/376/cmdline^@/proc/377/cmdline^@/proc/378/cmdline^@/proc/379/cmdline^@/proc/41273/cmdline^@/proc/42875/cmdline^@/proc/49760/cmdline^@/proc/49765/cmdline^@/proc/self/cmdline^@
==> /proc/49760/cmdline <==$
dirmngr^@--daemon^@--homedir^@$HOME/.gnupg^@$
==> /proc/49765/cmdline <==$
gpg-agent^@--homedir^@$HOME/.gnupg^@--use-standard-socket^@--daemon^@$
==> /proc/self/cmdline <==$
head^@/proc/17834/cmdline^@/proc/17934/cmdline^@/proc/17935/cmdline^@/proc/17938/cmdline^@/proc/17951/cmdline^@/proc/17952/cmdline^@/proc/17956/cmdline^@/proc/17964/cmdline^@/proc/17966/cmdline^@/proc/32326/cmdline^@/proc/34859/cmdline^@/proc/349/cmdline^@/proc/350/cmdline^@/proc/374/cmdline^@/proc/375/cmdline^@/proc/376/cmdline^@/proc/377/cmdline^@/proc/378/cmdline^@/proc/379/cmdline^@/proc/41273/cmdline^@/proc/42875/cmdline^@/proc/49760/cmdline^@/proc/49765/cmdline^@/proc/self/cmdline^@
-------------- next part --------------
$ procps -aeflw
F S UID PID PPID C PRI NI ADDR SZ WCHAN STIME TTY TIME CMD
0 S $USER 350 349 0 80 0 - 140 - Oct24 pty0 00:01:13 -bash
0 S SYSTEM 376 374 0 80 0 - 0 - Oct13 ? 00:30:46 /usr/sbin/cygserver
0 S $USER 41273 350 0 80 0 - 231 - Oct31 pty0 00:00:03 /usr/bin/xman -pagesize 600x800+1300+200
0 S $USER 49765 1 0 80 0 - 95 - Oct26 ? 00:01:16 gpg-agent --homedir $HOME/.gnupg --use-standard-socket --daemon
0 S $USER 49760 1 0 80 0 - 349 - Oct26 ? 00:00:11 dirmngr --daemon --homedir $HOME/.gnupg
0 S SYSTEM 379 377 0 80 0 - 0 - Oct13 ? 00:00:46 /usr/sbin/syslog-ng
0 S $USER 32326 1 0 80 0 - 84 - Oct18 ? 00:00:00 ssh-agent
0 S $USER 17938 17934 0 80 0 - 201 - Oct13 ? 00:03:56 /usr/bin/xwin-xdg-menu
0 S $USER 34859 17938 0 80 0 - 252 - 08:39 ? 00:00:45 pcmanfm
0 S $USER 17966 1 1 80 0 - 217 - Oct13 ? 08:46:56 /usr/libexec/gam_server
0 S $USER 17951 1 0 80 0 - 84 - Oct13 ? 00:00:00 dbus-launch --sh-syntax --exit-with-session
0 S $USER 17935 17934 0 80 0 - 2112 - Oct13 cons0 00:57:53 /usr/bin/XWin :0 -multiwindow -auth $HOME/.serverauth.17834
0 S $USER 17956 1 0 80 0 - 128 - Oct13 ? 00:01:22 /usr/bin/gnome-keyring-daemon --start --components=pkcs11
0 S $USER 349 1 0 80 0 - 288 - Oct24 ? 01:26:40 /usr/bin/mintty -s 120x60 -p 210,120 -
0 R $USER 42895 350 0 80 0 - 98 - 14:34 pty0 00:00:00 procps -aeflw
0 S $USER 17952 1 0 80 0 - 89 - Oct13 ? 00:00:03 /usr/bin/dbus-daemon --fork --print-pid 5 --print-address 7 --session
0 S $USER 17964 17938 0 80 0 - 124 - Oct13 ? 00:00:47 /usr/bin/fbxkb
0 S $USER 17934 17834 0 80 0 - 84 - Oct13 cons0 00:00:00 xinit /etc/X11/xinit/startxwinrc -- /usr/bin/XWin :0 -multiwindow -auth $HOME/.serverauth.17834
0 S SYSTEM 378 375 0 80 0 - 0 - Oct13 ? 00:00:12 /usr/sbin/cron
0 S $USER 17834 1 0 80 0 - 80 - Oct13 cons0 00:00:00 /bin/sh /usr/bin/startxwin
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