gdb, amd64: return after amd64_analyze_frame_setup if current_pc reached

Make sure the function bails out early if CURRENT_PC is reached, to
avoid the call to amd64_analyze_register_saves.

Reviewed-By: Guinevere Larsen <guinevere@redhat.com>
Approved-By: Andrew Burgess <aburgess@redhat.com>

diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index 47eb2ec30260380df25c421cba3a699faa4fa64e..b69256509d91b813351544de5372d30c2a85eae5 100755 (executable)
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -2681,6 +2681,9 @@ amd64_analyze_prologue (gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR current_pc,
     return current_pc;
 
   pc = amd64_analyze_frame_setup (gdbarch, pc, current_pc, cache);
+  if (current_pc <= pc)
+    return current_pc;
+
   return amd64_analyze_register_saves (pc, current_pc, cache);
 }