diff --git a/libc/Android.bp b/libc/Android.bp
index cbca35f..51c1cb0 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -507,6 +507,7 @@
         "upstream-openbsd/lib/libc/stdlib/atol.c",
         "upstream-openbsd/lib/libc/stdlib/atoll.c",
         "upstream-openbsd/lib/libc/stdlib/getenv.c",
+        "upstream-openbsd/lib/libc/stdlib/getsubopt.c",
         "upstream-openbsd/lib/libc/stdlib/insque.c",
         "upstream-openbsd/lib/libc/stdlib/imaxabs.c",
         "upstream-openbsd/lib/libc/stdlib/imaxdiv.c",
@@ -1345,12 +1346,17 @@
         "bionic/sigdelset.cpp",
         "bionic/sigemptyset.cpp",
         "bionic/sigfillset.cpp",
+        "bionic/sighold.cpp",
+        "bionic/sigignore.cpp",
         "bionic/sigismember.cpp",
         "bionic/signal.cpp",
         "bionic/signalfd.cpp",
+        "bionic/sigpause.cpp",
         "bionic/sigpending.cpp",
         "bionic/sigprocmask.cpp",
         "bionic/sigqueue.cpp",
+        "bionic/sigrelse.cpp",
+        "bionic/sigset.cpp",
         "bionic/sigsuspend.cpp",
         "bionic/sigtimedwait.cpp",
         "bionic/sigwait.cpp",