freebsd-dev/tests/sys/kern/coredump_phnum_test.sh
Conrad Meyer 695349e306 coredump_phnum_test: Make expected pheader count more flexible
Note: this test still requires binutils readelf (from ports) to pass, until a
few issues are resolved in elftoolchain.

PR:		215019
Reported by:	ngie@
Sponsored by:	Dell EMC Isilon
2016-12-04 03:50:57 +00:00

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#
# Copyright (c) 2016 Dell EMC Isilon
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions, and the following disclaimer,
# without modification.
# 2. Redistributions in binary form must reproduce at minimum a disclaimer
# substantially similar to the "NO WARRANTY" disclaimer below
# ("Disclaimer") and any redistribution must be conditioned upon
# including a substantially similar Disclaimer requirement for further
# binary redistribution.
#
# NO WARRANTY
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGES.
#
# $FreeBSD$
atf_test_case coredump_phnum cleanup
coredump_phnum_head()
{
atf_set "descr" "More than 65534 segments"
atf_set "require.config" "allow_sysctl_side_effects"
atf_set "require.progs" "readelf procstat"
atf_set "require.user" "root"
}
coredump_phnum_body()
{
atf_expect_fail "elftoolchain (base) readelf doesn't handle extended program header numbers; bug # 215019"
# Set up core dumping
cat > coredump_phnum_restore_state.sh <<-EOF
#!/bin/sh
ulimit -c '$(ulimit -c)'
sysctl kern.coredump=$(sysctl -n kern.coredump)
sysctl kern.corefile='$(sysctl -n kern.corefile)'
EOF
chmod +x coredump_phnum_restore_state.sh
ulimit -c unlimited
sysctl kern.coredump=1
sysctl kern.corefile="$(pwd)/coredump_phnum_helper.core"
atf_check -s signal:sigabrt "$(atf_get_srcdir)/coredump_phnum_helper"
# Check that core looks good
if [ ! -f coredump_phnum_helper.core ]; then
atf_fail "Helper program did not dump core"
fi
# These magic numbers don't have any real significance. They are just
# the result of running the helper program and dumping core. The only
# important bit is that they're larger than 65535 (UINT16_MAX).
readelf -h coredump_phnum_helper.core | \
atf_check -o "match:65535 \(66[0-9]{3}\)" \
grep "Number of program headers:"
readelf -l coredump_phnum_helper.core | \
atf_check -o "match:There are 66[0-9]{3} program headers" \
grep -1 "program headers"
readelf -S coredump_phnum_helper.core | \
atf_check -o "match: 0000000000000001 .* 66[0-9]{3} " \
grep -A1 "^ \[ 0\] "
procstat -v coredump_phnum_helper.core | \
atf_check -o "match:66[0-9]{3}" wc -l
}
coredump_phnum_cleanup()
{
rm -f coredump_phnum_helper.core
if [ -x coredump_phnum_restore_state.sh ]; then
./coredump_phnum_restore_state.sh
fi
rm -f coredump_phnum_restore_state.sh
}
atf_init_test_cases()
{
atf_add_test_case coredump_phnum
}