Initialize gdb::optional empty payload to quiet false -Wmaybe-uninitialized warnings

[deliverable/binutils-gdb.git] / gdb / frame.c

diff --git a/gdb/frame.c b/gdb/frame.c
index 00001bcf3f5728c2e136c5e9bbce70449d01852c..05a3be400c35ada0de48fd529e9cc83e0eaa941d 100644 (file)
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -1,6 +1,6 @@
 /* Cache and manage frames for GDB, the GNU debugger.
 
-   Copyright (C) 1986-2016 Free Software Foundation, Inc.
+   Copyright (C) 1986-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -1410,16 +1410,21 @@ get_frame_register_bytes (struct frame_info *frame, int regnum,
        }
       else
        {
-         gdb_byte buf[MAX_REGISTER_SIZE];
-         enum lval_type lval;
-         CORE_ADDR addr;
-         int realnum;
+         struct value *value = frame_unwind_register_value (frame->next,
+                                                            regnum);
+         gdb_assert (value != NULL);
+         *optimizedp = value_optimized_out (value);
+         *unavailablep = !value_entirely_available (value);
 
-         frame_register (frame, regnum, optimizedp, unavailablep,
-                         &lval, &addr, &realnum, buf);
          if (*optimizedp || *unavailablep)
-           return 0;
-         memcpy (myaddr, buf + offset, curr_len);
+           {
+             release_value (value);
+             value_free (value);
+             return 0;
+           }
+         memcpy (myaddr, value_contents_all (value) + offset, curr_len);
+         release_value (value);
+         value_free (value);
        }
 
       myaddr += curr_len;
@@ -1460,11 +1465,15 @@ put_frame_register_bytes (struct frame_info *frame, int regnum,
        }
       else
        {
-         gdb_byte buf[MAX_REGISTER_SIZE];
-
-         deprecated_frame_register_read (frame, regnum, buf);
-         memcpy (buf + offset, myaddr, curr_len);
-         put_frame_register (frame, regnum, buf);
+         struct value *value = frame_unwind_register_value (frame->next,
+                                                            regnum);
+         gdb_assert (value != NULL);
+
+         memcpy ((char *) value_contents_writeable (value) + offset, myaddr,
+                 curr_len);
+         put_frame_register (frame, regnum, value_contents_raw (value));
+         release_value (value);
+         value_free (value);
        }
 
       myaddr += curr_len;