gdbserver: turn target op 'read_loadmap' into a method

gdbserver/ChangeLog:
2020-02-20  Tankut Baris Aktemur  <tankut.baris.aktemur@intel.com>

	Turn process_stratum_target's read_loadmap op into a method of
	process_target.

	* target.h (struct process_stratum_target): Remove the target op.
	(class process_target): Add the target op.  Also add
	'supports_read_loadmap'.
	* target.cc (process_target::read_loadmap): Define.
	(process_target::supports_read_loadmap): Define.

	Update the derived classes and callers below.

	* server.cc (handle_qxfer_fdpic): Update.
	(handle_query): Update.
	* linux-low.cc (linux_target_ops): Update.
	(linux_process_target::supports_read_loadmap): Define.
	(linux_read_loadmap): Turn into ...
	(linux_process_target::read_loadmap): ... this.
	* linux-low.h (class linux_process_target): Update.
	* lynx-low.cc (lynx_target_ops): Update.
	* nto-low.cc (nto_target_ops): Update.
	* win32-low.cc (win32_target_ops): Update.

1 files changed, 13 insertions, 0 deletions

diff --git a/gdbserver/target.cc b/gdbserver/target.cc
index e1c802d65bc..26b9d8b6afe 100644
--- a/gdbserver/target.cc
+++ b/gdbserver/target.cc
@@ -589,3 +589,16 @@ process_target::core_of_thread (ptid_t ptid)
 {
   return -1;
 }
+
+bool
+process_target::supports_read_loadmap ()
+{
+  return false;
+}
+
+int
+process_target::read_loadmap (const char *annex, CORE_ADDR offset,
+			      unsigned char *myaddr, unsigned int len)
+{
+  gdb_assert_not_reached ("target op read_loadmap not supported");
+}