diff --git a/tools/.gitignore b/tools/.gitignore
index adf79fa..29a2365 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -1,3 +1,8 @@
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+!aarch64-linux-android-4.9.tar.gz
+!aarch64-linux-gnu-gcc.tar.gz
+!llvm-arm-toolchain-ship.tar.gz
+
 aarch64-linux-android-4.9/
 aarch64-linux-gnu-gcc/
 llvm-arm-toolchain-ship/
diff --git a/tools/SecImage.tar.gz b/tools/SecImage.tar.gz
new file mode 100644
index 0000000..cac7b94
--- /dev/null
+++ b/tools/SecImage.tar.gz
@@ -0,0 +1,3 @@
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new file mode 100644
index 0000000..a3ba93b
--- /dev/null
+++ b/tools/aarch64-linux-android-4.9.tar.gz
@@ -0,0 +1,3 @@
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diff --git a/tools/aarch64-linux-gnu-gcc.tar.gz b/tools/aarch64-linux-gnu-gcc.tar.gz
new file mode 100644
index 0000000..fbd3817
--- /dev/null
+++ b/tools/aarch64-linux-gnu-gcc.tar.gz
@@ -0,0 +1,3 @@
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new file mode 100644
index 0000000..5e55f9a
--- /dev/null
+++ b/tools/llvm-arm-toolchain-ship.tar.gz
@@ -0,0 +1,3 @@
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