In my previous post i showed how to display process environment variables using series of mdb commands. Here is the example of debugger module that does the same thing.
Grab the source from http://www.curthread.org/download/mdbprintenv/mdbprintenv-1.0.tar.gz and compile it:
# gcc -fPIC -D_KERNEL -shared -R/usr/sfw/lib/sparcv9 \\
-m64 -mcpu=v9 printenv.c -o printenv.so
and install:
# install -s -f /usr/lib/mdb/kvm/sparcv9 -m 555 -u root \\
-g sys printenv.so
Run mdb in kernel mode and load new dmod:
# mdb -k
> ::load printenv
> ::dmods -l
...
printenv
----------------------------------------------
dcmd printenv - print process environment
...
And now:
> 0t12161::pid2proc | ::printenv
debugger context set to proc 6000ae9f7f8
PATH=/usr/sbin:/usr/bin
SMF_FMRI=svc:/system/sysevent:default
SMF_METHOD=/lib/svc/method/svc-syseventd start
SMF_RESTARTER=svc:/system/svc/restarter:default
TZ=Europe/Moscow
debugger context set to kernel
