Hello,
This patch fixes the static link description in DWARF to comply with the
specification. In order to do so, it appends a field to all FRAME
objects to hold the frame base address (DW_AT_frame_base) so that the
nested subrograms can directly reference this field.
See <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53927> for the context
(in particular why we need this additional field in FRAME objects).
Bootstrapped and regtested successfuly on x86_64-linux. Ok for trunk?
Thank you in advance!
gcc/ChangeLog:
PR debug/53927
* tree-nested.c (finalize_nesting_tree_1): Append a field to
hold the frame base address.
* dwarf2out.c (gen_subprogram_die): Generate for
DW_AT_static_link a location description that computes the value
of this field.
--
Pierre-Marie de Rodat
