diff --git a/tools/testing/selftests/alsa/Makefile b/tools/testing/selftests/alsa/Makefile
index 8ac22d2eb2ba..a8c0383878d3 100644
--- a/tools/testing/selftests/alsa/Makefile
+++ b/tools/testing/selftests/alsa/Makefile
@@ -6,9 +6,20 @@ LDLIBS += $(shell pkg-config --libs alsa)
 ifeq ($(LDLIBS),)
 LDLIBS += -lasound
 endif
+CFLAGS += -L$(OUTPUT) -Wl,-rpath=./
+
+OVERRIDE_TARGETS = 1
 
 TEST_GEN_PROGS := mixer-test pcm-test
 
-pcm-test: pcm-test.c conf.c
+TEST_GEN_PROGS_EXTENDED := libatest.so
+
+TEST_FILES := conf.d
 
 include ../lib.mk
+
+$(OUTPUT)/libatest.so: conf.c alsa-local.h
+	$(CC) $(CFLAGS) -shared -fPIC $< $(LDLIBS) -o $@
+
+$(OUTPUT)/%: %.c $(TEST_GEN_PROGS_EXTENDED) alsa-local.h
+	$(CC) $(CFLAGS) $< $(LDLIBS) -latest -o $@
diff --git a/tools/testing/selftests/alsa/alsa-local.h b/tools/testing/selftests/alsa/alsa-local.h
index fd0771ac600d..65f197ea9773 100644
--- a/tools/testing/selftests/alsa/alsa-local.h
+++ b/tools/testing/selftests/alsa/alsa-local.h
@@ -10,6 +10,8 @@
 
 #include <alsa/asoundlib.h>
 
+snd_config_t *get_alsalib_config(void);
+
 void conf_load(void);
 void conf_free(void);
 snd_config_t *conf_by_card(int card);
diff --git a/tools/testing/selftests/alsa/conf.c b/tools/testing/selftests/alsa/conf.c
index dd6aa90deef9..c7ffc8f04195 100644
--- a/tools/testing/selftests/alsa/conf.c
+++ b/tools/testing/selftests/alsa/conf.c
@@ -28,6 +28,75 @@ struct card_data {
 
 static struct card_data *conf_cards;
 
+static const char *alsa_config =
+"ctl.hw {\n"
+"	@args [ CARD ]\n"
+"	@args.CARD.type string\n"
+"	type hw\n"
+"	card $CARD\n"
+"}\n"
+"pcm.hw {\n"
+"	@args [ CARD DEV SUBDEV ]\n"
+"	@args.CARD.type string\n"
+"	@args.DEV.type integer\n"
+"	@args.SUBDEV.type integer\n"
+"	type hw\n"
+"	card $CARD\n"
+"	device $DEV\n"
+"	subdevice $SUBDEV\n"
+"}\n"
+;
+
+#ifdef SND_LIB_VER
+#if SND_LIB_VERSION >= SND_LIB_VER(1, 2, 6)
+#define LIB_HAS_LOAD_STRING
+#endif
+#endif
+
+#ifndef LIB_HAS_LOAD_STRING
+static int snd_config_load_string(snd_config_t **config, const char *s,
+				  size_t size)
+{
+	snd_input_t *input;
+	snd_config_t *dst;
+	int err;
+
+	assert(config && s);
+	if (size == 0)
+		size = strlen(s);
+	err = snd_input_buffer_open(&input, s, size);
+	if (err < 0)
+		return err;
+	err = snd_config_top(&dst);
+	if (err < 0) {
+		snd_input_close(input);
+		return err;
+	}
+	err = snd_config_load(dst, input);
+	snd_input_close(input);
+	if (err < 0) {
+		snd_config_delete(dst);
+		return err;
+	}
+	*config = dst;
+	return 0;
+}
+#endif
+
+snd_config_t *get_alsalib_config(void)
+{
+	snd_config_t *config;
+	int err;
+
+	err = snd_config_load_string(&config, alsa_config, strlen(alsa_config));
+	if (err < 0) {
+		ksft_print_msg("Unable to parse custom alsa-lib configuration: %s\n",
+			       snd_strerror(err));
+		ksft_exit_fail();
+	}
+	return config;
+}
+
 static struct card_data *conf_data_by_card(int card, bool msg)
 {
 	struct card_data *conf;
diff --git a/tools/testing/selftests/alsa/mixer-test.c b/tools/testing/selftests/alsa/mixer-test.c
index a38b89c28030..05f1749ae19d 100644
--- a/tools/testing/selftests/alsa/mixer-test.c
+++ b/tools/testing/selftests/alsa/mixer-test.c
@@ -26,6 +26,7 @@
 #include <stdint.h>
 
 #include "../kselftest.h"
+#include "alsa-local.h"
 
 #define TESTS_PER_CONTROL 7
 
@@ -50,56 +51,11 @@ struct ctl_data {
 	struct ctl_data *next;
 };
 
-static const char *alsa_config =
-"ctl.hw {\n"
-"	@args [ CARD ]\n"
-"	@args.CARD.type string\n"
-"	type hw\n"
-"	card $CARD\n"
-"}\n"
-;
-
 int num_cards = 0;
 int num_controls = 0;
 struct card_data *card_list = NULL;
 struct ctl_data *ctl_list = NULL;
 
-#ifdef SND_LIB_VER
-#if SND_LIB_VERSION >= SND_LIB_VER(1, 2, 6)
-#define LIB_HAS_LOAD_STRING
-#endif
-#endif
-
-#ifndef LIB_HAS_LOAD_STRING
-static int snd_config_load_string(snd_config_t **config, const char *s,
-				  size_t size)
-{
-	snd_input_t *input;
-	snd_config_t *dst;
-	int err;
-
-	assert(config && s);
-	if (size == 0)
-		size = strlen(s);
-	err = snd_input_buffer_open(&input, s, size);
-	if (err < 0)
-		return err;
-	err = snd_config_top(&dst);
-	if (err < 0) {
-		snd_input_close(input);
-		return err;
-	}
-	err = snd_config_load(dst, input);
-	snd_input_close(input);
-	if (err < 0) {
-		snd_config_delete(dst);
-		return err;
-	}
-	*config = dst;
-	return 0;
-}
-#endif
-
 static void find_controls(void)
 {
 	char name[32];
@@ -112,12 +68,7 @@ static void find_controls(void)
 	if (snd_card_next(&card) < 0 || card < 0)
 		return;
 
-	err = snd_config_load_string(&config, alsa_config, strlen(alsa_config));
-	if (err < 0) {
-		ksft_print_msg("Unable to parse custom alsa-lib configuration: %s\n",
-			       snd_strerror(err));
-		ksft_exit_fail();
-	}
+	config = get_alsalib_config();
 
 	while (card >= 0) {
 		sprintf(name, "hw:%d", card);
diff --git a/tools/testing/selftests/alsa/pcm-test.c b/tools/testing/selftests/alsa/pcm-test.c
index 2814d8f74f82..6e7dfc395b98 100644
--- a/tools/testing/selftests/alsa/pcm-test.c
+++ b/tools/testing/selftests/alsa/pcm-test.c
@@ -31,26 +31,6 @@ struct pcm_data {
 	struct pcm_data *next;
 };
 
-static const char *alsa_config =
-"ctl.hw {\n"
-"	@args [ CARD ]\n"
-"	@args.CARD.type string\n"
-"	type hw\n"
-"	card $CARD\n"
-"}\n"
-"pcm.hw {\n"
-"	@args [ CARD DEV SUBDEV ]\n"
-"	@args.CARD.type string\n"
-"	@args.DEV.type integer\n"
-"	@args.SUBDEV.type integer\n"
-"	type hw\n"
-"	card $CARD\n"
-"	device $DEV\n"
-"	subdevice $SUBDEV\n"
-"}\n"
-
-;
-
 int num_pcms = 0;
 struct pcm_data *pcm_list = NULL;
 
@@ -77,56 +57,6 @@ long long timestamp_diff_ms(timestamp_t *tstamp)
 	return (diff.tv_sec * 1000) + ((diff.tv_nsec + 500000L) / 1000000L);
 }
 
-#ifdef SND_LIB_VER
-#if SND_LIB_VERSION >= SND_LIB_VER(1, 2, 6)
-#define LIB_HAS_LOAD_STRING
-#endif
-#endif
-
-#ifndef LIB_HAS_LOAD_STRING
-static int snd_config_load_string(snd_config_t **config, const char *s,
-				  size_t size)
-{
-	snd_input_t *input;
-	snd_config_t *dst;
-	int err;
-
-	assert(config && s);
-	if (size == 0)
-		size = strlen(s);
-	err = snd_input_buffer_open(&input, s, size);
-	if (err < 0)
-		return err;
-	err = snd_config_top(&dst);
-	if (err < 0) {
-		snd_input_close(input);
-		return err;
-	}
-	err = snd_config_load(dst, input);
-	snd_input_close(input);
-	if (err < 0) {
-		snd_config_delete(dst);
-		return err;
-	}
-	*config = dst;
-	return 0;
-}
-#endif
-
-static snd_config_t *get_alsalib_config(void)
-{
-	snd_config_t *config;
-	int err;
-
-	err = snd_config_load_string(&config, alsa_config, strlen(alsa_config));
-	if (err < 0) {
-		ksft_print_msg("Unable to parse custom alsa-lib configuration: %s\n",
-			       snd_strerror(err));
-		ksft_exit_fail();
-	}
-	return config;
-}
-
 static long device_from_id(snd_config_t *node)
 {
 	const char *id;