--- a/src/hotspot/share/utilities/debug.cpp	Wed Nov 13 09:09:41 2019 +0000
+++ b/src/hotspot/share/utilities/debug.cpp	Wed Nov 13 17:24:53 2019 +0800
@@ -642,6 +642,7 @@
   tty->print_cr("  pns(void* sp, void* fp, void* pc)  - print native (i.e. mixed) stack trace. E.g.");
   tty->print_cr("                   pns($sp, $rbp, $pc) on Linux/amd64 and Solaris/amd64 or");
   tty->print_cr("                   pns($sp, $ebp, $pc) on Linux/x86 or");
+  tty->print_cr("                   pns($sp, $fp, $pc)  on Linux/AArch64 or");
   tty->print_cr("                   pns($sp, 0, $pc)    on Linux/ppc64 or");
   tty->print_cr("                   pns($sp, $s8, $pc)  on Linux/mips or");
   tty->print_cr("                   pns($sp + 0x7ff, 0, $pc) on Solaris/SPARC");