Introduce register_operation

This adds class register_operation, which implements OP_REGISTER.

gdb/ChangeLog
2021-03-08  Tom Tromey  <tom@tromey.com>

	* expop.h (class register_operation): New.
	* eval.c (eval_op_register): No longer static.
	* ax-gdb.c (register_operation::do_generate_ax): New method.

1 files changed, 1 insertions, 1 deletions

diff --git a/gdb/eval.c b/gdb/eval.c
index 56010ee..4601c92 100644
--- a/gdb/eval.c
+++ b/gdb/eval.c
@@ -1254,7 +1254,7 @@ eval_op_func_static_var (struct type *expect_type, struct expression *exp,
 
 /* Helper function that implements the body of OP_REGISTER.  */
 
-static struct value *
+struct value *
 eval_op_register (struct type *expect_type, struct expression *exp,
 		  enum noside noside, const char *name)
 {