diff --git a/sig/Compiler/sig-info.yaml b/sig/Compiler/sig-info.yaml
index 79e82a6d5e38636fafe25cf82d5164100df3ab15..c3bacb18e69a82caec0e47aaea60acc9c56e9599 100644
--- a/sig/Compiler/sig-info.yaml
+++ b/sig/Compiler/sig-info.yaml
@@ -339,7 +339,9 @@ repositories:
     name: yunfei Li
     organization: Huawei
     email: liyunfei33@huawei.com
-
+- repo:
+  - src-openeuler/llvm-libc
+  
 #################################################
 # miscellaneous repos
 #################################################
diff --git a/sig/Compiler/src-openeuler/l/llvm-libc.yaml b/sig/Compiler/src-openeuler/l/llvm-libc.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..c2383950c7257cfb0d030690c657e9896eff3e10
--- /dev/null
+++ b/sig/Compiler/src-openeuler/l/llvm-libc.yaml
@@ -0,0 +1,7 @@
+name: llvm-libc
+description: LLVM's C standard library
+upstream: https://github.com/llvm/llvm-project
+branches:
+- name: master
+  type: protected
+type: public