travis: Force travis build to fail when core files are dumped

.ci/common.sh

@@ -7,10 +7,7 @@ asan_check() {
 }
 
 check_logs() {
-	# For some strange reason, now we need to give ubuntu some time to flush it's
-	# FS cache in order to see error logs, even though all commands are executing
-	# synchronously
-	sleep 1
+	check_core_dumps
 	# Iterate through each log to remove an useless warning
 	for log in $(find "$1" -type f -name "$2"); do
 		sed -i "$log" \
@@ -29,6 +26,15 @@ check_logs() {
 	fi
 }
 
+check_core_dumps() {
+	sleep 2
+	local c
+	for c in $(find ./ -name '*core*' -print); do
+	 	gdb -q -n -batch -ex bt build/bin/nvim $c
+		exit 1
+	done
+}
+
 set_environment() {
 	local prefix="$1/usr"
 	eval $($prefix/bin/luarocks path)

.ci/gcc-32.sh

@@ -23,4 +23,6 @@ CMAKE_EXTRA_FLAGS="-DTRAVIS_CI_BUILD=ON \
 
 $MAKE_CMD CMAKE_EXTRA_FLAGS="${CMAKE_EXTRA_FLAGS}" unittest
 $MAKE_CMD test
+check_core_dumps
 $MAKE_CMD oldtest
+check_core_dumps

.travis.yml

@@ -20,9 +20,9 @@ before_install:
   # Need xvfb for running some tests with xclip
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
-  - sudo apt-get install xclip
+  - sudo apt-get install xclip gdb
 script:
   # This will pass the environment variables down to a bash process which runs
   # as $USER, while retaining the environment variables defined and belonging
   # to secondary groups given above in usermod.
-  - sudo -E su ${USER} -c "sh -e \"${CI_SCRIPTS}/${CI_TARGET}.sh\""
+  - sudo -E su ${USER} -c "ulimit -c 102400; sh -e \"${CI_SCRIPTS}/${CI_TARGET}.sh\""