diff --git a/tools/gn2bp/Android.bp.swp b/tools/gn2bp/Android.bp.swp
index cc629db..2661f1b 100644
--- a/tools/gn2bp/Android.bp.swp
+++ b/tools/gn2bp/Android.bp.swp
@@ -1821,6 +1821,8 @@
         "buildtools/third_party/libunwind/trunk/src/Unwind-sjlj.c",
         "buildtools/third_party/libunwind/trunk/src/UnwindLevel1-gcc-ext.c",
         "buildtools/third_party/libunwind/trunk/src/UnwindLevel1.c",
+        "buildtools/third_party/libunwind/trunk/src/UnwindRegistersRestore.S",
+        "buildtools/third_party/libunwind/trunk/src/UnwindRegistersSave.S",
         "buildtools/third_party/libunwind/trunk/src/libunwind.cpp",
     ],
 }
@@ -5258,6 +5260,28 @@
 // GN: //third_party/boringssl:boringssl_asm
 filegroup {
     name: "cronet_aml_third_party_boringssl_boringssl_asm",
+    srcs: [
+        "third_party/boringssl/linux-x86_64/crypto/chacha/chacha-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/cipher_extra/aes128gcmsiv-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/cipher_extra/chacha20_poly1305_x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/aesni-gcm-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/aesni-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/ghash-ssse3-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/ghash-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/md5-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/p256-x86_64-asm.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/p256_beeu-x86_64-asm.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/rdrand-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/rsaz-avx2.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/sha1-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/sha256-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/sha512-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/vpaes-x86_64.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/x86_64-mont.S",
+        "third_party/boringssl/linux-x86_64/crypto/fipsmodule/x86_64-mont5.S",
+        "third_party/boringssl/linux-x86_64/crypto/test/trampoline-x86_64.S",
+        "third_party/boringssl/src/crypto/hrss/asm/poly_rq_mul.S",
+    ],
 }
 
 // GN: //third_party/boringssl/src/third_party/fiat:fiat_license
diff --git a/tools/gn2bp/gen_android_bp b/tools/gn2bp/gen_android_bp
index 66a7fc7..8a15ee1 100755
--- a/tools/gn2bp/gen_android_bp
+++ b/tools/gn2bp/gen_android_bp
@@ -503,7 +503,7 @@
 
 def is_supported_source_file(name):
   """Returns True if |name| can appear in a 'srcs' list."""
-  return os.path.splitext(name)[1] in ['.c', '.cc', '.cpp', '.java', '.proto']
+  return os.path.splitext(name)[1] in ['.c', '.cc', '.cpp', '.java', '.proto', '.S']
 
 
 def create_proto_modules(blueprint, gn, target):