[GOLD] PowerPC tls_get_addr_optimize

[deliverable/binutils-gdb.git] / gold / ChangeLog

diff --git a/gold/ChangeLog b/gold/ChangeLog
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@@ -1,3 +1,44 @@
+2017-08-29  Alan Modra  <amodra@gmail.com>
+
+       * options.h (tls_get_addr_optimize): New option.
+       * symtab.h (Symbol::clear_in_reg, clone): New functions.
+       (Sized_symbol::clone): New function.
+       (Symbol_table::clone): New function.
+       * resolve.cc (Symbol::clone, Sized_symbol::clone): New functions.
+       * powerpc.cc (Target_powerpc::has_tls_get_addr_opt_,
+       tls_get_addr_, tls_get_addr_opt_): New vars.
+       (Target_powerpc::tls_get_addr_opt, tls_get_addr,
+       is_tls_get_addr_opt, replace_tls_get_addr,
+       set_has_tls_get_addr_opt, stk_linker): New functions.
+       (Target_powerpc::Track_tls::maybe_skip_tls_get_addr_call): Add
+       target param.  Update callers.  Compare symbols rather than names.
+       (Target_powerpc::do_define_standard_symbols): Init tls_get_addr_
+       and tls_get_addr_opt_.
+       (Target_powerpc::Branch_info::mark_pltcall): Translate tls_get_addr
+       sym to tls_get_addr_opt.
+       (Target_powerpc::Branch_info::make_stub): Likewise.
+       (Stub_table::define_stub_syms): Likewise.
+       (Target_powerpc::Scan::global): Likewise.
+       (Target_powerpc::Relocate::relocate): Likewise.
+       (add_3_12_2, add_3_12_13, bctrl, beqlr, cmpdi_11_0, cmpwi_11_0,
+       ld_11_1, ld_11_3, ld_12_3, lwz_11_3, lwz_12_3, mr_0_3, mr_3_0,
+       mtlr_11, std_11_1): New constants.
+       (Stub_table::eh_frame_added_): Delete.
+       (Stub_table::tls_get_addr_opt_bctrl_, plt_fde_len_, plt_fde_): New vars.
+       (Stub_table::init_plt_fde): New functions.
+       (Stub_table::add_eh_frame, replace_eh_frame): Move definition out
+       of line.  Init and use plt_fde_.
+       (Stub_table::plt_call_size): Return size for tls_get_addr stub.
+       Extract alignment code to..
+       (Stub_table::plt_call_align): ..this new function.  Adjust all callers.
+       (Stub_table::add_plt_call_entry): Set has_tls_get_addr_opt and
+       tls_get_addr_opt_bctrl, and align after that.
+       (Stub_table::do_write): Write out tls_get_addr stub.
+       (Target_powerpc::do_finalize_sections): Emit DT_PPC_OPT
+       PPC_OPT_TLS/PPC64_OPT_TLS bit.
+       (Target_powerpc::Relocate::relocate): Don't check for or modify
+       nop following bl for tls_get_addr stub.
+
 2017-08-29  Alan Modra  <amodra@gmail.com>
 
        * symtab.h (Symbol): Split u_ into u1_ and u2_.  Adjust accessors