| 1 | #!/usr/bin/env bash
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| 2 | #
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| 3 | # Test kernel state: which signals caught, ignored, etc.
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| 4 | #
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| 5 | # Usage:
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| 6 | # test/signal-state.sh <function name>
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| 7 |
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| 8 | do_child() {
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| 9 | echo
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| 10 | echo 'BACKGROUND CHILD'
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| 11 | $sh -c 'script=$1; sleep 0.5 & { sleep 0.2; $script report $!; }' -- $0
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| 12 |
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| 13 | # TODO: I think we need a foreground child too. It can just be a C program that
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| 14 | # prints its own PID, and then waits for a byte on stdin before it exits?
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| 15 | }
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| 16 |
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| 17 | compare-shells() {
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| 18 | local do_child=${1:-}
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| 19 | local do_trap=${2:-}
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| 20 |
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| 21 | local osh_cpp=_bin/cxx-dbg/osh
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| 22 | ninja $osh_cpp
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| 23 |
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| 24 | local -a shells=(bash dash mksh zsh bin/osh $osh_cpp)
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| 25 |
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| 26 | # Hm non-interactive shells have consistency.
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| 27 | # SIGCHLD and SIGINT are caught in bash, dash, zsh, mksh. mksh catches
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| 28 | # several more.
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| 29 |
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| 30 | for sh in ${shells[@]}; do
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| 31 | echo
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| 32 | echo "---- $sh ----"
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| 33 | echo
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| 34 |
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| 35 | #echo "Parent PID $$"
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| 36 | #grep '^SigIgn:' "/proc/$$/status"
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| 37 | #trap
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| 38 |
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| 39 | $sh test/signal-report.sh report "$do_trap"
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| 40 |
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| 41 | if test -n "$do_child"; then
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| 42 | do_child $sh
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| 43 | fi
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| 44 | done
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| 45 | }
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| 46 |
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| 47 | old() {
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| 48 | echo
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| 49 | echo
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| 50 |
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| 51 | # -i messes things up
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| 52 | return
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| 53 |
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| 54 | for sh in ${shells[@]}; do
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| 55 | echo
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| 56 | echo "---- $sh -i ----"
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| 57 | echo
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| 58 |
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| 59 | # NOTE: If we don't set --rcfile, somehow this parent shell gets
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| 60 | # [2]+ Stopped devtools/sigparse.sh compare-shells
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| 61 | # Seems related to spec test flakiness.
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| 62 |
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| 63 | local more_flags=''
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| 64 | case $sh in
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| 65 | bash|bin/osh)
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| 66 | more_flags='--rcfile /dev/null'
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| 67 | ;;
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| 68 | esac
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| 69 |
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| 70 | $sh $more_flags -i -c 'script=$1; $script report $$' -- $0
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| 71 |
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| 72 | if test -n "$do_child"; then
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| 73 | do-child $sh
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| 74 | fi
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| 75 | done
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| 76 | }
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| 77 |
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| 78 | "$@"
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