Bug #758 ยป fbt_demo001.sh.txt
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export PATH='/usr/xpg6/bin:/usr/xpg4/bin:/usr/ccs/bin:/usr/bin:/usr/sbin' |
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|
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# |
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# prechecks |
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# |
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|
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print '# Prechecks...' |
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|
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if [[ $(/usr/bin/ppriv $$) != ~(X).*(dtrace_proc)&(dtrace_user).* && "$LOGNAME" != 'root' ]] ; then |
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print -u2 "User has no dtrace privs" |
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exit 1 |
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fi |
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|
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|
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# |
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# run test |
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# |
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|
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print '# Run tests' |
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# dtrace script to capture |ioctl()| output of a child |
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# process |
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typeset dtrace_script=' |
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#pragma D option flowindent |
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|
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syscall::ioctl:entry |
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/curpsinfo->pr_ppid==MAGICPPID && execname == "rksh"/ |
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{ |
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self->traceme = 1; |
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printf("fd: %d", arg0); |
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} |
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|
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syscall::ioctl:return |
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/self->traceme == 1/ |
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{ |
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self->traceme = 0; |
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} |
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|
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fbt::: |
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/self->traceme == 1/ |
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{ |
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} |
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' |
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|
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# modify script to include our pid as ppid |
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dtrace_script="${dtrace_script//MAGICPPID/$$}" |
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|
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/usr/sbin/dtrace -s '/dev/stdin' <<<"$dtrace_script" >'xxx' 2>&1 & |
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integer dt_pid=$! |
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|
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|
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# spin-wait until dtrace becomes ready |
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while [[ ! -f 'xxx' || "$( < 'xxx' )" != ~(E)dtrace:\ script.+matched.+probes ]] ; do |
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sleep 1 |
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printf '.' |
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done |
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printf '\n' |
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|
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# grrr... dtrace claims to be ready before all probes are active |
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# (and after a long search it seems that sleeping here is the only "solution") |
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sleep 30 |
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|
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|
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# run test application |
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rksh -c 'tty ; true' |
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|
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|
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# grrrr... give dtrace some time to log output |
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# (don't ask how we can programatically figure |
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# out when dtrace is done logging - ENOSUCHWAY) |
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sleep 15 |
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|
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# quit dtrace |
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kill ${dt_pid} |
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wait ${dt_pid} |
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|
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printf 'log output:\n-- snip --\n' |
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cat 'xxx' |
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printf -- '-- snip --\n' |
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|
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typeset out="$( <'xxx' )" |
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|
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print '# Processing results...' |
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|
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# check if we met our test's goals: |
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# (we define some simple patterns here as demo...) |
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typeset -a test_goals=( |
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'*ttcompatwput*' |
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'*WR*' |
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'*chicken*' |
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'*ldterm*' |
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) |
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|
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integer i |
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for (( i=0 ; i < ${#test_goals[@]} ; i++ )) ; do |
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tg="${test_goals[i]}" |
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|
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if [[ "$out" == ${tg} ]] ; then |
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printf '# test goal %s met.\n' "$tg" |
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else |
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printf '# FAIL: goal %s NOT met.\n' "$tg" |
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fi |
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done |
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|
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|
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# |
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# cleanup |
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# |
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|
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rm 'xxx' |
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|
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# EOF. |