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| author | Alan Modra <amodra@gmail.com> | 2012-12-06 03:13:17 +0000 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2012-12-06 03:13:17 +0000 |
| commit | 9e69ed506afe4d59c5524ba74284bb972bb0f59b (patch) | |
| tree | 8efe1952103fb18edd938e704be706111ee4ac80 /gold/options.h | |
| parent | c90a077350e441ae527b16a62719b1f2402ad9b4 (diff) | |
| download | gdb-9e69ed506afe4d59c5524ba74284bb972bb0f59b.zip gdb-9e69ed506afe4d59c5524ba74284bb972bb0f59b.tar.gz gdb-9e69ed506afe4d59c5524ba74284bb972bb0f59b.tar.bz2 | |
* options.h (General_options): Add plt_align, plt_static_chain,
plt_thread_safe. Update stub_group_size help text.
* powerpc.cc (Target_powerpc::plt_thread_safe): New access function
for new plt_thread_safe_ var.
(use_plt_offset): Correct comments.
(Target_powerpc::do_relax): Look for thread creation symbols to
determine default plt_thread_safe value. Clear plt call stubs
as well as branch stubs each iteration.
(add_2_2_11, add_12_12_11, bnectr_p4, cmpldi_2_0, xor_11_11_11): New
insn constants.
(l, hi, ha, write_insn): Move earlier.
(Stub_table): Delete prev_size, add last_plt_size and last_branch_size.
(Stub_table::clear_stubs): Rename from clear_long_branch_stubs, clear
plt stubs too.
(Stub_table::update_size): Adjust.
(Stub_table::prev_size, set_prev_size): Delete.
(Stub_table::stub_align): Let --plt-align affect result.
(Stub_table::plt_call_size): Calculate sizes for various stubs.
(Stub_table::branch_stub_size): Use last_plt_size in address calc.
(Stub_table::add_plt_call_stub): Pass iterator to plt_call_size.
(Stub_table::do_write): Support more stub variants.
Diffstat (limited to 'gold/options.h')
| -rw-r--r-- | gold/options.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/gold/options.h b/gold/options.h index 50762a5..216620a 100644 --- a/gold/options.h +++ b/gold/options.h @@ -936,6 +936,18 @@ class General_options DEFINE_bool(pipeline_knowledge, options::ONE_DASH, '\0', false, NULL, N_("(ARM only) Ignore for backward compatibility")); + DEFINE_var(plt_align, options::TWO_DASHES, '\0', 0, "5", + N_("(PowerPC64 only) Align PLT call stubs to fit cache lines"), + N_("[=P2ALIGN]"), true, int, int, options::parse_uint); + + 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")); + + DEFINE_bool(plt_thread_safe, options::TWO_DASHES, '\0', false, + N_("(PowerPC64 only) PLT call stubs with load-load barrier"), + N_("(PowerPC64 only) PLT call stubs without barrier")); + #ifdef ENABLE_PLUGINS DEFINE_special(plugin, options::TWO_DASHES, '\0', N_("Load a plugin library"), N_("PLUGIN")); @@ -1016,9 +1028,10 @@ class General_options N_("Strip LTO intermediate code sections"), NULL); DEFINE_int(stub_group_size, options::TWO_DASHES , '\0', 1, - N_("(ARM only) The maximum distance from instructions in a group " - "of sections to their stubs. Negative values mean stubs " - "are always after the group. 1 means using default size.\n"), + N_("(ARM, PowerPC only) The maximum distance from instructions " + "in a group of sections to their stubs. Negative values mean " + "stubs are always after (PowerPC before) the group. 1 means " + "use default size.\n"), N_("SIZE")); DEFINE_bool(no_keep_memory, options::TWO_DASHES, '\0', false, |