Introduce a gdb_ref_ptr specialization for struct value

[deliverable/binutils-gdb.git] / gdb / dwarf2-frame-tailcall.c

diff --git a/gdb/dwarf2-frame-tailcall.c b/gdb/dwarf2-frame-tailcall.c
index 952bc142335129f7fbc495d0d85d9864296191f7..1d3e1f445bba24407c8d73c1018f55f03210406e 100644 (file)
--- a/gdb/dwarf2-frame-tailcall.c
+++ b/gdb/dwarf2-frame-tailcall.c
@@ -1,6 +1,6 @@
 /* Virtual tail call frames unwinder for GDB.
 
-   Copyright (C) 2010-2015 Free Software Foundation, Inc.
+   Copyright (C) 2010-2018 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -386,13 +386,15 @@ dwarf2_tailcall_sniffer_first (struct frame_info *this_frame,
       /* call_site_find_chain can throw an exception.  */
       chain = call_site_find_chain (prev_gdbarch, prev_pc, this_pc);
 
-      if (entry_cfa_sp_offsetp == NULL)
-       break;
-      sp_regnum = gdbarch_sp_regnum (prev_gdbarch);
-      if (sp_regnum == -1)
-       break;
-      prev_sp = frame_unwind_register_unsigned (this_frame, sp_regnum);
-      prev_sp_p = 1;
+      if (entry_cfa_sp_offsetp != NULL)
+       {
+         sp_regnum = gdbarch_sp_regnum (prev_gdbarch);
+         if (sp_regnum != -1)
+           {
+             prev_sp = frame_unwind_register_unsigned (this_frame, sp_regnum);
+             prev_sp_p = 1;
+           }
+       }
     }
   CATCH (except, RETURN_MASK_ERROR)
     {
@@ -462,9 +464,6 @@ const struct frame_unwind dwarf2_tailcall_frame_unwind =
   tailcall_frame_prev_arch
 };
 
-/* Provide a prototype to silence -Wmissing-prototypes.  */
-extern initialize_file_ftype _initialize_tailcall_frame;
-
 void
 _initialize_tailcall_frame (void)
 {