For some reason symfile-mem.o is not included in the configuration for
"s390*-*-linux*". It was added to the configuration of most GNU/Linux
targets with a patch from Andrew Cagney:
"Add symfile-mem to all linux targets" --
https://sourceware.org/ml/gdb-patches/2005-02/msg00053.html
But the s390 target was overlooked at that time. Thus the command
"add-symbol-file-from-memory" is missing and VDSO symbols are not loaded.
This is fixed.
gdb/ChangeLog:
* configure.tgt (s390*-*-linux*): Add symfile-mem.o.
+2017-12-08 Andreas Arnez <arnez@linux.vnet.ibm.com>
+
+ * configure.tgt (s390*-*-linux*): Add symfile-mem.o.
+
2017-12-07 Keith Seitz <keiths@redhat.com>
PR breakpoints/22569
s390*-*-linux*)
# Target: S390 running Linux
gdb_target_obs="s390-linux-tdep.o solib-svr4.o linux-tdep.o \
- linux-record.o"
+ linux-record.o symfile-mem.o"
build_gdbserver=yes
;;