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| author | Alan Modra <amodra@gmail.com> | 2017-06-23 20:39:43 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-06-23 20:39:43 +0930 |
| commit | 7ee7ff7015840f2d0156bf386a050bd728d22fc4 (patch) | |
| tree | 3e12dac4d7ecf1c5df4748be3365e140a8058e5a /gold/options.h | |
| parent | 7e57d19e48f94ff9a19a9413cf25d1887e3a7f52 (diff) | |
| download | gdb-7ee7ff7015840f2d0156bf386a050bd728d22fc4.zip gdb-7ee7ff7015840f2d0156bf386a050bd728d22fc4.tar.gz gdb-7ee7ff7015840f2d0156bf386a050bd728d22fc4.tar.bz2 | |
[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.
Diffstat (limited to 'gold/options.h')
| -rw-r--r-- | gold/options.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gold/options.h b/gold/options.h index 202d4b0..c7c032b 100644 --- a/gold/options.h +++ b/gold/options.h @@ -1104,6 +1104,10 @@ class General_options N_("(PowerPC64 only) Align PLT call stubs to fit cache lines"), N_("[=P2ALIGN]"), true, int, int, options::parse_uint, false); + DEFINE_bool(plt_localentry, options::TWO_DASHES, '\0', false, + N_("(PowerPC64 only) Optimize calls to ELFv2 localentry:0 functions"), + N_("(PowerPC64 only) Don't optimize ELFv2 calls")); + DEFINE_bool(plt_static_chain, options::TWO_DASHES, '\0', false, N_("(PowerPC64 only) PLT call stubs should load r11"), N_("(PowerPC64 only) PLT call stubs should not load r11")); |