gdb: Remove a non-const reference parameter

[deliverable/binutils-gdb.git] / gdb / stap-probe.c

diff --git a/gdb/stap-probe.c b/gdb/stap-probe.c
index 866b41e7f04e367c1d94c81cbd783e3eae30017a..b6de873d2c935a42e21c6b19bcb667a3b5959348 100644 (file)
--- a/gdb/stap-probe.c
+++ b/gdb/stap-probe.c
@@ -774,23 +774,24 @@ stap_parse_register_operand (struct stap_parse_info *p)
      code would like to perform on the register name.  */
   if (gdbarch_stap_adjust_register_p (gdbarch))
     {
-      std::string oldregname = regname;
+      std::string newregname
+       = gdbarch_stap_adjust_register (gdbarch, p, regname, regnum);
 
-      gdbarch_stap_adjust_register (gdbarch, p, regname, regnum);
-
-      if (regname != oldregname)
+      if (regname != newregname)
        {
          /* This is just a check we perform to make sure that the
             arch-dependent code has provided us with a valid
             register name.  */
-         regnum = user_reg_map_name_to_regnum (gdbarch, regname.c_str (),
-                                               regname.size ());
+         regnum = user_reg_map_name_to_regnum (gdbarch, newregname.c_str (),
+                                               newregname.size ());
 
          if (regnum == -1)
            internal_error (__FILE__, __LINE__,
                            _("Invalid register name '%s' after replacing it"
                              " (previous name was '%s')"),
-                           regname.c_str (), oldregname.c_str ());
+                           newregname.c_str (), regname.c_str ());
+
+         regname = newregname;
        }
     }