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281 lines
6.6 KiB
Bash
Executable File
281 lines
6.6 KiB
Bash
Executable File
#!/bin/bash
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# test-wrapper script for NaCl.
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# Copyright (C) 2015-2016 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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progname="$(basename "$0")"
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usage="usage: ${progname} --arch=ARCH [VAR=VAL...] COMMAND ..."
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help="
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"
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use_bootstrap=true
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arch=
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env=()
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envi=0
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while [ $# -gt 0 ]; do
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case "$1" in
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--help)
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echo "$usage"
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echo "$help"
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exit 0
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;;
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--arch=*)
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arch="${1#--arch=}"
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shift
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;;
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*=*)
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env[envi++]='-E'
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env[envi++]="$1"
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shift
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;;
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--)
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shift
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break
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;;
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*)
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break
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;;
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esac
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done
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if [ $# -lt 1 -o -z "$arch" ]; then
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echo "$usage" >&2
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echo "Type '${progname} --help' for more detailed help." >&2
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exit 1
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fi
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test_args=("$@")
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if [ -z "$NACL_SDK_ROOT" ]; then
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echo >&2 "$0: NACL_SDK_ROOT must be set in the environment"
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exit 77
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fi
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# We use a handful of things from the NaCl SDK, or at least
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# from a directory matching the layout of the NaCl SDK.
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sdk_tools="${NACL_SDK_ROOT}/tools"
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NACL_BOOTSTRAP="${sdk_tools}/nacl_helper_bootstrap_${arch}"
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NACL_SEL_LDR="${sdk_tools}/sel_ldr_${arch}"
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NACL_IRT="${sdk_tools}/irt_core_${arch}.nexe"
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NACL_LOADER="${sdk_tools}/elf_loader_${arch}.nexe"
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if [ ! -x "$NACL_BOOTSTRAP" -o ! -x "$NACL_SEL_LDR" ]; then
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echo >&2 "$0: sel_ldr_${arch} and/or nacl_helper_bootstrap_${arch} missing"
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echo >&2 "$0: from directory $sdk_tools"
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exit 77
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fi
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if [ ! -r "$NACL_IRT" -o ! -r "$NACL_LOADER" ]; then
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echo >&2 "$0: irt_core_${arch}.nexe and/or loader_${arch}.nexe missing"
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echo >&2 "$0: from directory $sdk_tools"
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exit 77
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fi
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# Figure out if we are building for the native machine or not.
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# If not, we'll run sel_ldr under qemu.
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decide_use_emulator()
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{
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local arg
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for arg; do
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if [[ "$(uname -m)" = "$1" ]]; then
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return
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fi
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done
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use_emulator=true
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}
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use_emulator=false
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case "$arch" in
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arm)
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decide_use_emulator 'arm*'
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emulator=(qemu-arm -cpu cortex-a15 -L "${sdk_tools}/arm_trusted")
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;;
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x86_32)
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decide_use_emulator 'i?86' 'x86_64*'
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emulator=(qemu-i386)
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;;
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x86_64)
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decide_use_emulator 'x86_64*'
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emulator=(qemu-x86_64)
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;;
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esac
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if $use_emulator; then
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ldr_args=('-Q')
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emulator_factor=10
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else
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emulator=()
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ldr_args=()
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emulator_factor=1
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fi
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if $use_bootstrap; then
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ldr=(
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"${NACL_BOOTSTRAP}"
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"${NACL_SEL_LDR}"
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'--r_debug=0xXXXXXXXXXXXXXXXX'
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'--reserved_at_zero=0xXXXXXXXXXXXXXXXX'
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)
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else
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ldr=("${NACL_SEL_LDR}")
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fi
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static=true
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case "$1" in
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*/ld-nacl*) static=false ;;
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esac
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if $static; then
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loader=()
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else
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loader=(-f "${NACL_LOADER}")
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fi
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run_test()
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{
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local test_fifo="$1"
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local cmd=(
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"${emulator[@]}" "${ldr[@]}" -q -S -a "${ldr_args[@]}" -B "${NACL_IRT}"
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"${loader[@]}" "${env[@]}" -E TEST_DIRECT="$test_fifo" -- "${test_args[@]}"
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)
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if [ "${NACLVERBOSITY:+set}" = set ]; then
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"${cmd[@]}"
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else
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NACLLOG=/dev/null "${cmd[@]}"
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fi
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}
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temp_files=()
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test_fifo=
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do_cleanup()
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{
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rm -rf "$test_fifo" "${temp_files[@]}"
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}
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trap do_cleanup EXIT HUP INT TERM
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# Create a named pipe to receive the TEST_DIRECT information from the test
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# program.
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test_fifo=${TMPDIR:-/tmp}/libc-test-fifo.$$
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rm -f "$test_fifo"
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mkfifo "$test_fifo" || {
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echo "Cannot create test FIFO '$test_fifo'"
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exit 1
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}
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# Run the test in the background, so we can implement a timeout.
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# The no-op redirection defeats the default behavior of "< /dev/null"
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# for a background command.
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run_test "$test_fifo" <&0 & test_pid=$!
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# Set up a short timeout before we read from the FIFO, in case
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# the program doesn't actually write to the FIFO at all (it is
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# not a test-skeleton.c program, or it dies very early).
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no_skeleton=false
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script_pid=$$
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trap 'no_skeleton=true' USR1
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(sleep 2; kill -USR1 $script_pid) 2> /dev/null &
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# The test should first write into the FIFO to describe its expectations.
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# Our open-for-reading of the FIFO will block until the test starts up and
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# opens it for writing. Then our reads will block until the test finishes
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# writing out info and closes the FIFO. At that point we will have
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# collected (and evaluated) what it emitted. It sets these variables:
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# timeout=%u
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# timeoutfactor=%u
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# exit=%u
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# signal=%s
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unset exit signal
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. "$test_fifo" 2> /dev/null
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# If we got this far, either the 'no_skeleton=true' watchdog already
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# fired, or else we don't want it to.
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trap '' USR1
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if $no_skeleton; then
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# We hit the timeout, so we didn't get full information about test
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# expectations. Reset any partial results we may have gotten.
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unset exit signal
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else
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# Now we know the expected timeout, so we can start the timer running.
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((sleep_time = timeout * timeoutfactor * emulator_factor))
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# Now start a background subshell to enforce the timeout.
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(sleep "$sleep_time"; kill -ALRM $test_pid) 2> /dev/null &
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fi
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# This corresponds to '#ifdef EXPECTED_STATUS' in test-skeleton.c.
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expected_status()
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{
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test "${exit+yes}" = yes
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}
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# This corresponds to '#ifdef EXPECTED_SIGNAL' in test-skeleton.c.
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expected_signal()
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{
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test "${signal+yes}" = yes
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}
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# This corresponds to 'if (WIFEXITED (status))' in test-skeleton.c.
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wifexited()
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{
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test $test_rc -lt 128
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}
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# Now wait for the test process to finish.
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wait $test_pid
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test_rc=$?
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# This exactly duplicates the logic in test-skeleton.c.
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if wifexited; then
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if ! expected_status; then
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if ! expected_signal; then
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# Simply exit with the return value of the test. */
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exit $test_rc
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else
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echo "Expected signal '${signal}' from child, got none"
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exit 1
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fi
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else
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if [ $test_rc -ne $exit ]; then
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echo "Expected status $exit, got $test_rc"
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exit 1
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fi
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exit 0
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fi
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else
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# Process was killed by timer or other signal.
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((test_signal = test_rc > 192 ? 256 - test_rc : test_rc - 128 ))
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test_signame=$(kill -l "$test_signal")
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if ! expected_signal; then
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echo "Didn't expect signal from child; got '${test_signame}'"
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exit 1
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else
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if [ "$test_signame" != "$signal" ]; then
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echo "\
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Incorrect signal from child: got '${test_signame}', need '${signal}'"
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exit 1
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fi
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exit 0
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fi
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fi
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