-On Android signal handlers are setup by the linker (through debuggerd_client):
-https://github.com/android/platform_system_core/blob/6fff551728f75e35b69bd59f2bc722a72d5c6d61/debuggerd/client/debuggerd_client.cpp#L290
-
-diff -u -r ../gdb-7.12/gdb/common/signals-state-save-restore.c ./gdb/common/signals-state-save-restore.c
---- ../gdb-7.12/gdb/common/signals-state-save-restore.c 2016-10-07 13:04:17.000000000 -0400
-+++ ./gdb/common/signals-state-save-restore.c 2016-10-09 18:39:27.866619885 -0400
-@@ -58,10 +58,12 @@
- else if (res == -1)
- perror_with_name (("sigaction"));
-
+diff -u -r ../gdb-8.1/gdb/common/signals-state-save-restore.c ./gdb/common/signals-state-save-restore.c
+--- ../gdb-8.1/gdb/common/signals-state-save-restore.c 2018-01-31 03:58:50.000000000 +0100
++++ ./gdb/common/signals-state-save-restore.c 2018-02-01 21:38:47.791540495 +0100
+@@ -69,6 +69,7 @@
+ && oldact->sa_handler != SIG_DFL
+ && oldact->sa_handler != SIG_IGN)
+ {