test/make: select ABI reference build for test

At given time we support two SPDK versions:
- last release
- LTS release

For ABI tests we need to select proper reference
build to check against.

Signed-off-by: Karol Latecki <karol.latecki@intel.com>
Change-Id: I674b6092199c4535288f5062ff0523a13890cbce
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5056
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Michal Berger <michalx.berger@intel.com>

test/make/check_so_deps.sh

@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 shopt -s extglob
 
+function get_git_tag() {
+	git -C "${1:-$rootdir}" describe --tags --abbrev=0
+}
+
 if [ "$(uname -s)" = "FreeBSD" ]; then
 	echo "Not testing for shared object dependencies on FreeBSD."
 	exit 0
@@ -18,13 +22,22 @@ source "$rootdir/test/common/autotest_common.sh"
 
 libdir="$rootdir/build/lib"
 libdeps_file="$rootdir/mk/spdk.lib_deps.mk"
-source_abi_dir="$HOME/spdk_abi_latest/build/lib"
 suppression_file="$HOME/abigail_suppressions.ini"
 
+spdk_tag=$(get_git_tag)
+spdk_lts_tag=$(get_git_tag "$HOME/spdk_abi_lts")
+repo="spdk_abi_latest"
+if [[ "$spdk_tag" == "$spdk_lts_tag" ]]; then
+	repo="spdk_abi_lts"
+fi
+source_abi_dir="$HOME/$repo/build/lib"
+
 function confirm_abi_deps() {
 	local processed_so=0
 	local abidiff_output
 
+	echo "* Running ${FUNCNAME[0]} against $repo" >&2
+
 	if ! hash abidiff; then
 		echo "Unable to check ABI compatibility. Please install abidiff."
 		return 1