[GOLD] PowerPC64 localentry:0 plt call optimization
authorAlan Modra <amodra@gmail.com>
Fri, 23 Jun 2017 11:09:43 +0000 (20:39 +0930)
committerAlan Modra <amodra@gmail.com>
Fri, 23 Jun 2017 11:09:43 +0000 (20:39 +0930)
commit7ee7ff7015840f2d0156bf386a050bd728d22fc4
tree3e12dac4d7ecf1c5df4748be3365e140a8058e5a
parent7e57d19e48f94ff9a19a9413cf25d1887e3a7f52
[GOLD] PowerPC64 localentry:0 plt call optimization

elfcpp/
* elfcpp.h (DT_PPC64_OPT): Define.
* powerpc.h (PPC64_OPT_TLS, PPC64_OPT_MULTI_TOC,
PPC64_OPT_LOCALENTRY): Define.
gold/
* options.h (General_options): Add plt_localentry.
* powerpc.cc (Target_powerpc::st_other): New function.
(Target_powerpc::plt_localentry0_, plt_localentry0_init_,
has_localentry0_): New vars.
(Target_powerpc::plt_localentry0, set_has_localentry0,
is_elfv2_localentry0): New functions.
(Target_powerpc::Branch_info::mark_pltcall): Don't set tocsave or
return true for localentry:0 calls.
(Stub_table::Plt_stub_ent::localentry0_): New var.
(Stub_table::add_plt_call_entry): Set localentry0_ and has_localentry0_.
Don't set r2save_ for localentry:0 calls.
(Output_data_glink::do_write): Save r2 in __glink_PLTresolve for elfv2.
(Target_powerpc::scan_relocs): Default plt_localentry0_.
(Target_powerpc::do_finalize_sections): Set DT_PPC64_OPT.
(Target_powerpc::Relocate::relocate): Don't require nop following
calls for localentry:0 plt calls, and don't change nop.
elfcpp/ChangeLog
elfcpp/elfcpp.h
elfcpp/powerpc.h
gold/ChangeLog
gold/options.h
gold/powerpc.cc