/* Virtual tail call frames unwinder for GDB.
- Copyright (C) 2010-2015 Free Software Foundation, Inc.
+ Copyright (C) 2010-2019 Free Software Foundation, Inc.
This file is part of GDB.
int next_levels;
struct tailcall_cache *cache;
+ if (!dwarf2_frame_unwinders_enabled_p)
+ return 0;
+
/* Inner tail call element does not make sense for a sentinel frame. */
next_frame = get_next_frame (this_frame);
if (next_frame == NULL)
/* 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)
{
tailcall_frame_prev_arch
};
-/* Provide a prototype to silence -Wmissing-prototypes. */
-extern initialize_file_ftype _initialize_tailcall_frame;
-
void
_initialize_tailcall_frame (void)
{