diff --git a/.gitmodules b/.gitmodules
index 6b38bda36469e41405d98f61249eb1f4d70efae5..52cb3706fdcdfb331cacc271b2d895f08aeec229 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -118,3 +118,6 @@
 	ignore = all
 	path = boards/riscv64/tiny-riscv-box/bsp
 	url = https://gitee.com/tinylab/tiny-riscv-box.git
+[submodule "tools/tinybpt"]
+	path = tools/tinybpt
+	url = https://gitee.com/tinylab/tinybpt
diff --git a/tools/tinybpt b/tools/tinybpt
new file mode 160000
index 0000000000000000000000000000000000000000..b490fcc77bdd9639cbe44761c13b6015e1086096
--- /dev/null
+++ b/tools/tinybpt
@@ -0,0 +1 @@
+Subproject commit b490fcc77bdd9639cbe44761c13b6015e1086096