1 files changed, 10 insertions, 0 deletions

diff --git a/tools/lib/subcmd/sigchain.h b/tools/lib/subcmd/sigchain.h
new file mode 100644
index 000000000000..0c919f2874ca
--- /dev/null
+++ b/tools/lib/subcmd/sigchain.h
@@ -0,0 +1,10 @@
+#ifndef __SUBCMD_SIGCHAIN_H
+#define __SUBCMD_SIGCHAIN_H
+
+typedef void (*sigchain_fun)(int);
+
+int sigchain_pop(int sig);
+
+void sigchain_push_common(sigchain_fun f);
+
+#endif /* __SUBCMD_SIGCHAIN_H */