Provide unit test driver

This adds a unit test driver for BIND with Automake.  It runs the unit
test program provided as its sole command line argument and then looks
for a core dump generated by that test program.  If one is found, the
driver prints the backtrace into the test log.

configure.ac

@@ -1637,6 +1637,9 @@ AC_CONFIG_FILES([lib/isc/tests/Makefile
 		 lib/isccc/tests/Makefile
 		 lib/isccfg/tests/Makefile])
 
+AC_CONFIG_FILES([lib/unit-test-driver.sh],
+		[chmod +x lib/unit-test-driver.sh])
+
 # System Tests
 
 AC_CONFIG_FILES([bin/tests/Makefile

lib/.gitignore

@@ -1,3 +1,4 @@
 platform.h
 netdb.h
 gen
+/unit-test-driver.sh

lib/dns/tests/Makefile.am

@@ -108,3 +108,5 @@ rsa_test_CPPFLAGS =		\
 	$(OPENSSL_CFLAGS)
 
 unit-local: check
+
+LOG_COMPILER = $(builddir)/../../unit-test-driver.sh

lib/irs/tests/Makefile.am

@@ -15,3 +15,5 @@ check_PROGRAMS = \
 TESTS = $(check_PROGRAMS)
 
 unit-local: check
+
+LOG_COMPILER = $(builddir)/../../unit-test-driver.sh

lib/isc/tests/Makefile.am

@@ -65,3 +65,5 @@ random_test_LDADD =	\
 	-lm
 
 unit-local: check
+
+LOG_COMPILER = $(builddir)/../../unit-test-driver.sh

lib/isccc/tests/Makefile.am

@@ -15,3 +15,5 @@ check_PROGRAMS =	\
 TESTS = $(check_PROGRAMS)
 
 unit-local: check
+
+LOG_COMPILER = $(builddir)/../../unit-test-driver.sh

lib/isccfg/tests/Makefile.am

@@ -17,3 +17,5 @@ check_PROGRAMS = \
 TESTS = $(check_PROGRAMS)
 
 unit-local: check
+
+LOG_COMPILER = $(builddir)/../../unit-test-driver.sh

lib/ns/tests/Makefile.am

@@ -45,3 +45,5 @@ query_test_LDFLAGS =			\
 endif
 
 unit-local: check
+
+LOG_COMPILER = $(builddir)/../../unit-test-driver.sh

lib/unit-test-driver.sh.in

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+TOP_BUILDDIR=@abs_top_builddir@
+TOP_SRCDIR=@abs_top_srcdir@
+
+if [ -z "${1}" ]; then
+    echo "Usage: ${0} test_program" >&2
+    exit 1
+fi
+
+TEST_PROGRAM="${1}"
+
+"${TEST_PROGRAM}"
+STATUS=${?}
+
+TEST_PROGRAM_NAME=$(basename "${TEST_PROGRAM}")
+TEST_PROGRAM_WORK_DIR=$(dirname "${TEST_PROGRAM}")
+find "${TEST_PROGRAM_WORK_DIR}" -name 'core*' -or -name '*.core' | while read -r CORE_DUMP; do
+    BINARY=$(gdb --batch --core="${CORE_DUMP}" 2>/dev/null | sed -n "s/^Core was generated by \`\(.*\)'\.\$/\1/p")
+    if ! echo "${BINARY}" | grep -q "${TEST_PROGRAM_NAME}\$"; then
+        continue
+    fi
+    echo "I:${TEST_PROGRAM_NAME}:Core dump found: ${CORE_DUMP}"
+    echo "D:${TEST_PROGRAM_NAME}:backtrace from ${CORE_DUMP} start"
+    "${TOP_BUILDDIR}/libtool" --mode=execute gdb \
+                              --batch \
+                              --command="${TOP_SRCDIR}/bin/tests/system/run.gdb" \
+                              --core="${CORE_DUMP}" \
+                              -- \
+                              "${BINARY}"
+    echo "D:${TEST_PROGRAM_NAME}:backtrace from ${CORE_DUMP} end"
+done
+
+exit ${STATUS}