diff --git a/lib/x1000-installer/.gitignore b/lib/x1000-installer/.gitignore
index dae360e116..e7ad25b29f 100644
--- a/lib/x1000-installer/.gitignore
+++ b/lib/x1000-installer/.gitignore
@@ -1,3 +1,5 @@
 xf_test
 fakeNAND.bin
 fakeNAND_meta.bin
+*.profraw
+*.profdata
diff --git a/lib/x1000-installer/Makefile b/lib/x1000-installer/Makefile
index 35fa747aab..1a63e6d5b3 100644
--- a/lib/x1000-installer/Makefile
+++ b/lib/x1000-installer/Makefile
@@ -20,19 +20,61 @@ MTARINC = -I../microtar/src
 MTARLIB = ../microtar/libmicrotar.a
 
 CPPFLAGS = -Iinclude -Itest_lib $(MTARINC) -D_XOPEN_SOURCE=500 -D_POSIX_C_SOURCE=200809L
-CFLAGS = -std=c99 -Wall -Wextra -O2
+CFLAGS = -std=c99 -Wall -Wextra
+LDFLAGS =
 
+PROFRAW_FILE=$(TBIN).profraw
+PROFDATA_FILE=$(TBIN).profdata
+
+export LLVM_PROFILE_FILE=$(PROFRAW_FILE)
+
+ifeq ($(COVERAGE),1)
+  CC = clang
+  CFLAGS += -g -Og -fprofile-instr-generate -fcoverage-mapping
+  LDFLAGS += -fprofile-instr-generate -fcoverage-mapping
+else
+  CFLAGS += -O2
+endif
+
+ifeq ($(SANITIZE),1)
+  CFLAGS += -fsanitize=address -fsanitize=undefined
+  LDFLAGS += -fsanitize=address -fsanitize=undefined
+endif
+
+.PHONY: all
 all: $(LIB) $(TBIN)
 
-%.o: %.c
-	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+.PHONY: test
+test: $(TBIN)
+	@./$(TBIN)
+
+.PHONY: cov
+cov: $(PROFDATA_FILE)
+	@llvm-cov report $(TBIN) -instr-profile=$(PROFDATA_FILE)
+
+.PHONY: cov-show
+cov-show: $(PROFDATA_FILE)
+	@llvm-cov show $(TBIN) --use-color -instr-profile=$(PROFDATA_FILE) $(f) | less -R
+
+.PHONY: clean
+clean:
+	rm -f $(LIB) $(OBJ)
+	rm -f $(TBIN) $(TOBJ)
+	rm -f $(PROFRAW_FILE) $(PROFDATA_FILE)
+	rm -f fakeNAND.bin fakeNAND_meta.bin
 
 $(LIB): $(OBJ)
 	$(AR) rcs $@ $^ >/dev/null
 
 $(TBIN): $(TOBJ) $(LIB) $(MTARLIB)
-	$(CC) -o $@ $^
+	$(CC) -o $@ $^ $(LDFLAGS)
 
-clean:
-	rm -f $(LIB) $(OBJ)
-	rm -f $(TBIN) $(TOBJ)
+%.o: %.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+
+# use separate rule instead of depending on 'test' to avoid re-running
+$(PROFRAW_FILE): $(TBIN)
+	@./$(TBIN)
+
+$(PROFDATA_FILE): $(PROFRAW_FILE)
+	@llvm-profdata merge -sparse $(PROFRAW_FILE) -o $(PROFDATA_FILE)