| 1 | #!/usr/bin/env bash
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| 2 | #
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| 3 | # Usage:
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| 4 | # test/ltrace.sh <function name>
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| 5 |
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| 6 | : ${LIB_OSH=stdlib/osh}
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| 7 | source $LIB_OSH/bash-strict.sh
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| 8 | source $LIB_OSH/task-five.sh
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| 9 |
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| 10 | source test/common.sh # log
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| 11 |
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| 12 | BASE_DIR=_tmp/ltrace
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| 13 |
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| 14 | test-home-dir() {
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| 15 | mkdir -p $BASE_DIR
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| 16 | rm -f -v $BASE_DIR/*
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| 17 |
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| 18 | # ltrace doesn't work with ASAN, etc.
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| 19 | local osh=_bin/cxx-dbg/osh
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| 20 | ninja $osh
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| 21 |
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| 22 | # zsh calls getpwuid
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| 23 | # bash on my Ubuntu machine doesn't call it, but seems to in the Debian CI
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| 24 | # image
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| 25 | # could test mksh, but it's not in the CI image
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| 26 | for sh in $osh dash "$@"; do
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| 27 | local trace
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| 28 | trace=$BASE_DIR/$(basename $sh).txt
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| 29 |
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| 30 | set +o errexit
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| 31 |
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| 32 | set -x
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| 33 | ltrace -e getpwuid -- $sh -c 'echo hi' 2> $trace
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| 34 | local status=$?
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| 35 | set +x
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| 36 | echo "status=$status"
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| 37 |
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| 38 | set -o errexit
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| 39 | echo
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| 40 | done
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| 41 |
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| 42 | wc -l $BASE_DIR/*.txt
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| 43 | echo
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| 44 |
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| 45 | head $BASE_DIR/*.txt
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| 46 |
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| 47 | if grep getpwuid $BASE_DIR/*.txt; then
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| 48 | log "ERROR: shells should not call getpwuid()"
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| 49 | return 1
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| 50 | fi
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| 51 |
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| 52 | return 0
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| 53 | }
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| 54 |
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| 55 | soil-run() {
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| 56 | # 2025-11: ltrace doesn't seem to work on Github Actions, with podman, even
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| 57 | # podman 4.9 on Ubuntu
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| 58 | #
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| 59 | # This test does NOT fail, but it doesn't test anything either.
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| 60 | # This is even with PTRACE_FLAGS in soil/host-shim.sh, which fixed ASAN, but
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| 61 | # not ltrace.
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| 62 | #
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| 63 | # ==> _tmp/ltrace/dash.txt <==
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| 64 | # failed to init breakpoints 1648
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| 65 | # failed to initialize process 1648: Permission denied
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| 66 | # couldn't open program '/usr/bin/dash': Permission denied
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| 67 | #
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| 68 | # ==> _tmp/ltrace/osh.txt <==
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| 69 | # failed to init breakpoints 1645
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| 70 | # failed to initialize process 1645: Permission denied
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| 71 | # couldn't open program '_bin/cxx-dbg/osh': Permission denied
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| 72 |
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| 73 | # Did it ever work with Docker? It's not clear.
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| 74 | # In any case, we want to switch to podman, and this test is not that
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| 75 | # important.
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| 76 | # We could make it a separate Soil task in the future, so it's easier to
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| 77 | # debug.
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| 78 |
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| 79 | test-home-dir
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| 80 | }
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| 81 |
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| 82 | task-five "$@"
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