gold/ChangeLog

   1 2017-06-23  Alan Modra  <amodra@gmail.com>
   2
   3         * options.h (General_options): Add plt_localentry.
   4         * powerpc.cc (Target_powerpc::st_other): New function.
   5         (Target_powerpc::plt_localentry0_, plt_localentry0_init_,
   6         has_localentry0_): New vars.
   7         (Target_powerpc::plt_localentry0, set_has_localentry0,
   8         is_elfv2_localentry0): New functions.
   9         (Target_powerpc::Branch_info::mark_pltcall): Don't set tocsave or
  10         return true for localentry:0 calls.
  11         (Stub_table::Plt_stub_ent::localentry0_): New var.
  12         (Stub_table::add_plt_call_entry): Set localentry0_ and has_localentry0_.
  13         Don't set r2save_ for localentry:0 calls.
  14         (Output_data_glink::do_write): Save r2 in __glink_PLTresolve for elfv2.
  15         (Target_powerpc::scan_relocs): Default plt_localentry0_.
  16         (Target_powerpc::do_finalize_sections): Set DT_PPC64_OPT.
  17         (Target_powerpc::Relocate::relocate): Don't require nop following
  18         calls for localentry:0 plt calls, and don't change nop.
  19
  20 2017-06-23  Alan Modra  <amodra@gmail.com>
  21
  22         * powerpc.cc (Target_powerpc::tocsave_loc_): New var.
  23         (Target_powerpc::mark_pltcall, add_tocsave, tocsave_loc): New functions.
  24         (Target_powerpc::Branch_info::tocsave_): New var.
  25         (Target_powerpc::Branch_info::mark_pltcall): New function.
  26         (Target_powerpc::Branch_info::make_stub): Pass tocsave_ to
  27         add_plt_call_entry.
  28         (Stub_table::Plt_stub_ent): Make public.  Add r2save_.
  29         (Stub_table::add_plt_call_entry): Add bool tocsave_ param.  Set
  30         r2save_.
  31         (Stub_table::find_plt_call_entry): Return Plt_stub_ent*.  Adjust
  32         use throughout.
  33         (Stub_table::do_write): Conditionally output r2 save in plt stubs.
  34         (Target_powerpc::Scan::local): Handle R_PPC64_TOCSAVE.
  35         (Target_powerpc::Scan::global): Likewise.
  36         (Target_powerpc::Relocate::relocate): Skip r2 save in plt call stub
  37         with tocsave reloc.  Replace header tocsave nop with r2 save.
  38         * symtab.h (struct Symbol_location_hash): Make public.
  39
  40 2017-06-21  Alan Modra  <amodra@gmail.com>
  41
  42         * powerpc.cc (Plt_stub_key): Rename from Plt_stub_ent.  Remove indx_.
  43         (Plt_stub_key_hash): Rename from Plt_stub_ent_hash.
  44         (struct Plt_stub_ent): New.
  45         (Plt_stub_entries): Map from Plt_stub_key to Plt_stub_ent.  Adjust
  46         use throughout file.
  47
  48 2017-06-20  Eric Christopher  <echristo@gmail.com>
  49
  50         * aarch64.cc (scan_reloc_for_stub): Use plt_address_for_global to
  51         calculate the symbol value.
  52         (scan_reloc_section_for_stubs): Allow stubs to be created for
  53         section symbols.
  54         (maybe_apply_stub): Handle creating stubs for weak symbols to
  55         match the code in scan_reloc_for_stub.
  56
  57 2017-06-20  James Clarke  <jrtc27@jrtc27.com>
  58
  59         * powerpc.cc (Stub_table::define_stub_syms): Always include object's
  60         uniq_ value.
  61
  62 2017-06-15  Eric Christopher  <echristo@gmail.com>
  63
  64         * aarch64.cc: Fix a few typos and grammar-os.
  65
  66 2017-06-15  Jiong Wang  <jiong.wang@arm.com>
  67
  68         * aarch64.cc (Insn_utilities::is_mrs_tpidr_el0): New method.
  69         (AArch64_relobj<size, big_endian>::try_fix_erratum_843419_optimized):
  70         Return ture for some TLS relaxed sequences.
  71
  72 2017-06-07  Eric Christopher  <echristo@gmail.com>
  73
  74         * aarch64.cc (maybe_apply_stub): Add debug logging for looking
  75         up stubs to undefined symbols and early return rather than
  76         fail to look them up.
  77         (scan_reloc_for_stub): Add debug logging for no stub creation
  78         for undefined symbols.
  79
  80 2017-05-23  Alan Modra  <amodra@gmail.com>
  81
  82         PR 21503
  83         * options.h: Add --emit-stub-syms option.
  84         * powerpc.cc (object_id): New.
  85         (Powerpc_relobj): Add uniq_ and accessor.  Sort variables for
  86         better packing.
  87         (Powerpc_dynobj): Sort variables for better packing.
  88         (Target_powerpc::define_local): New function.
  89         (Target_powerpc::group_sections): Pass stub table size to
  90         Stub_table constructor.
  91         (Target_powerpc::do_relax): Define stub and glink symbols.
  92         (Stub_table): Add uniq_ variable, and id param to constructor.
  93         (Stub_table::Plt_stub_ent): Add indx_ variable.
  94         (Stub_table::Branch_stub_entries): Move typedef earlier.
  95         (Stub_table::branch_stub_size): Replace "to" parameter with a
  96         Branch_stub_entries iterator.
  97         (Stub_table::add_long_branch_entry): Adjust to suit.
  98         (Stub_table::add_plt_call_entry): Set indx_.
  99         (Stub_table::define_stub_syms): New function.
 100
 101 2017-05-15  Eric Christopher <echristo@gmail.com>
 102
 103         * layout.cc (Layout::segment_precedes): Add a case for testing
 104         pointer equality when determining which segment precedes
 105         another.
 106
 107 2017-05-13  James Clarke  <jrtc27@jrtc27.com>
 108
 109         PR gold/21444
 110         * gold.cc (Target_sparc::Relocate::relocate_tls): Local
 111         variables are final for position-independent executables. This
 112         has to be consistent with Target_sparc::Scan::local otherwise
 113         they will disagree as to whether local-exec is used.
 114
 115 2017-05-12  Igor Kudrin  <ikudrin@accesssoftek.com>
 116
 117         PR gold/21430
 118         * aarch64.cc
 119         (AArch64_relobj::convert_input_section_to_relaxed_section):
 120         Set the section offset to -1ULL.
 121         (Target_aarch64::relocate_section): Adjust the view in case
 122         of a relaxed input section.
 123         * testsuite/Makefile.am (pr21430): New test.
 124         * testsuite/Makefile.in: Regenerate
 125         * testsuite/pr21430.s: New test source file.
 126         * testsuite/pr21430.sh: New test script.
 127
 128 2017-04-27  Alan Modra  <amodra@gmail.com>
 129
 130         * testsuite/plugin_section_order.c (onload): Add missing break.
 131
 132 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 133
 134         * mips.cc (Mips_got_entry::hash()): Shift addend to reduce
 135         possibility of collisions.
 136         (Mips_got_entry::equals): Fix case for GOT_TLS_LDM
 137         entries.
 138
 139 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 140
 141         * mips.cc (Mips_relobj::merge_processor_specific_data_): New data
 142         member.
 143         (Mips_relobj::merge_processor_specific_data): New method.
 144         (Mips_relobj::do_read_symbols): Set merge_processor_specific_data_
 145         to false, only if the input file is a binary or if object has no
 146         contents except the section name string table and an empty symbol
 147         table with the undefined symbol.
 148         (Target_mips::do_finalize_sections): Refactor.  Skip empty object files
 149         for merging processor-specific data.
 150
 151 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 152
 153         * mips.cc (Target_mips::Relocate::calculated_value_): New data
 154         member.
 155         (Target_mips::Relocate::calculate_only_): Likewise.
 156         (Target_mips::Relocate::relocate): Handle multiple consecutive
 157         relocations with the same offset.
 158
 159 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 160
 161         * mips.cc (Target_mips::Relocate::relocate): Remove redundant
 162         checks for relocatable link.
 163         (Mips_relocate_functions::reljalr): Likewise.
 164
 165 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 166
 167         * mips.cc (class Mips_output_section_options): New class.
 168         (Target_mips::do_make_output_section): New method.
 169
 170 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 171
 172         * mips.cc (Mips_relocate_functions::rel26): Don't print relocation
 173         overflow error message.
 174         (Target_mips::relocate_special_relocatable): Improve relocation
 175         overflow error message.
 176         (Target_mips::Relocate::relocate): Likewise.
 177
 178 2017-03-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 179
 180         * mips.cc (symbol_refs_local): Return false if a symbol
 181         is from a dynamic object.
 182         (Target_mips::got_section): Make _GLOBAL_OFFSET_TABLE_ STV_HIDDEN.
 183         (Target_mips::set_gp): Refactor.  Make _gp STT_NOTYPE and
 184         STB_LOCAL.
 185         (Target_mips::do_finalize_sections): Set _gp after all the checks
 186         for creating .got are done.
 187         (Target_mips::Scan::global): Remove unused code.
 188
 189 2017-02-22  Alan Modra  <amodra@gmail.com>
 190
 191         * powerpc.cc (Target_powerpc::make_iplt_section): Check that
 192         output_section exists before attempting add_output_section_data.
 193         (Target_powerpc::make_brlt_section): Likewise.
 194
 195 2017-02-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 196
 197         * mips.cc (Target_mips::Scan::get_reference_flags): Remove
 198         gold_unreachable from default case.
 199
 200 2017-02-15  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 201
 202         PR gold/21111
 203         * mips.cc (Mips_relocate_functions::relhigher): New method.
 204         (Mips_relocate_functions::relhighest): Likewise.
 205         (mips_get_size_for_reloc): Add support for relocs: R_MIPS_HIGHER and
 206         R_MIPS_HIGHEST.
 207         (Target_mips::Scan::local): Add support for relocs: R_MIPS_HIGHER,
 208         R_MIPS_HIGHEST, R_MICROMIPS_HIGHER and R_MICROMIPS_HIGHEST.
 209         (Target_mips::Scan::global): Likewise.
 210         (Target_mips::Scan::get_reference_flags): Likewise.
 211         (Target_mips::Relocate::relocate): Call static methods for resolving
 212         HIGHER and HIGHEST relocations.
 213
 214 2017-02-03  Rahul Chaudhry  <rahulchaudhry@google.com>
 215
 216         * x86_64.cc (Target_x86_64::do_can_check_for_function_pointers):
 217         Return true even when building pie binaries.
 218         (Target_x86_64::possible_function_pointer_reloc): Check opcode
 219         for R_X86_64_PC32 relocations.
 220         (Target_x86_64::local_reloc_may_be_function_pointer): Pass
 221         extra arguments to local_reloc_may_be_function_pointer.
 222         (Target_x86_64::global_reloc_may_be_function_pointer): Likewise.
 223         * gc.h (gc_process_relocs): Add check for STT_FUNC.
 224         * testsuite/Makefile.am (icf_safe_pie_test): New test case.
 225         * testsuite/Makefile.in: Regenerate.
 226         * testsuite/icf_safe_pie_test.sh: New shell script.
 227
 228 2017-02-03  Alan Modra  <amodra@gmail.com>
 229
 230         * powerpc.cc (Powerpc_relobj::make_toc_relative): Don't crash
 231         when no .toc section exists.
 232
 233 2017-01-31  Cary Coutant  <ccoutant@gmail.com>
 234
 235         PR gold/21090
 236         * x86_64.cc (Target_x86_64::can_convert_mov_to_lea): Add check
 237         for predefined symbol.
 238         (Target_x86_64::Relocate::relocate): Fix formatting.
 239
 240 2017-01-23  Rahul Chaudhry  <rahulchaudhry@google.com>
 241
 242         * testsuite/icf_safe_so_test.sh: Use "set -e".
 243         * testsuite/icf_safe_test.sh: Likewise.
 244         * testsuite/icf_test.sh: Likewise.
 245
 246 2017-01-23  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 247
 248         * mips.cc (Mips_output_data_plt::rel_plt): Remove const from return
 249         type.
 250         (Target_mips::make_plt_entry): Make the sh_info field of .rel.plt
 251         point to .plt.
 252
 253 2017-01-23  Vladimir Radosavljevic  <Vladimir.Radosavljevic@imgtec.com>
 254
 255         PR gold/21054
 256         * mips.cc (Mips_got_info::record_global_got_symbol): Don't add symbol
 257         to the dynamic symbol table if it is forced to local visibility.
 258         (Target_mips::do_finalize_sections): Don't add __RLD_MAP symbol to the
 259         dynamic symbol table if it is forced to local visibility.
 260
 261 2017-01-20  Nick Clifton  <nickc@redhat.com>
 262
 263         * aarch64.cc (Stub_template_repertoire): Change ST_E_835769_INSNS
 264         from a pointer to an array.
 265
 266 2017-01-13  H.J. Lu  <hongjiu.lu@intel.com>
 267
 268         PR gold/21040
 269         * powerpc.cc (Powerpc_relobj<size, big_endian>::make_toc_relative):
 270         Cast 0x80008000 to uint64_t.
 271
 272 2017-01-12  Cary Coutant  <ccoutant@gmail.com>
 273
 274         * object.cc (Sized_relobj_file): Fix byte counts for calls to memmem.
 275
 276 2017-01-11  Cary Coutant  <ccoutant@gmail.com>
 277
 278         PR gold/21040
 279         * x86_64.cc (Output_data_plt_x86_64_bnd::do_fill_first_plt_entry):
 280         Remove unnecessary 'typename' keyword.
 281         (Output_data_plt_x86_64_bnd::do_fill_plt_entry): Likewise.
 282         (Output_data_plt_x86_64_bnd::fill_aplt_entry): Likewise.
 283         (Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry): Likewise.
 284         (Output_data_plt_x86_64_bnd::do_write): Likewise.
 285
 286 2017-01-11  Cary Coutant  <ccoutant@gmail.com>
 287
 288         PR gold/21040
 289         * x86_64.cc (Output_data_plt_x86_64_bnd::do_fill_first_plt_entry):
 290         Remove unnecessary 'typename' keyword.
 291         (Output_data_plt_x86_64_bnd::do_fill_plt_entry): Likewise.
 292         (Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry): Likewise.
 293         (Output_data_plt_x86_64_bnd::fill_aplt_entry): Likewise.
 294         * testsuite/copy_test_relro_1.cc (p, b, c, q): Add separate extern
 295         declarations.
 296
 297 2017-01-11  Cary Coutant  <ccoutant@gmail.com>
 298
 299         PR gold/21039
 300         * testsuite/script_test_13.sh: Adjust patterns to work for i386.
 301         * testsuite/script_test_15a.sh: Likewise.
 302         * testsuite/script_test_15b.sh: Likewise.
 303         * testsuite/script_test_15c.sh: Likewise.
 304
 305 2017-01-11  Alan Modra  <amodra@gmail.com>
 306
 307         * powerpc.cc (class Powerpc_copy_relocs): New.
 308         (Powerpc_copy_relocs::emit): New function.
 309         (Powerpc_relobj::relatoc_, toc_, no_toc_opt_): New variables.
 310         (Powerpc_relobj::toc_shndx, set_no_toc_opt, no_toc_opt): New inlines.
 311         (Powerpc_relobj::do_relocate_sections): New function.
 312         (Powerpc_relobj::make_toc_relative): Likewise.
 313         (Powerpc_relobj::do_find_special_sections): Stash away .rela.toc
 314         and .toc too.
 315         (ok_lo_toc_insn): Move earlier, and handle more insns.
 316         (Target_powerpc::Scan::local): If optimizing toc accesses, set
 317         no_toc_opt for entries we can't edit.  Check insn validity.
 318         Emit "toc optimization is not supported" warning, downgraded
 319         from error.
 320         (Target_powerpc::Scan::global): Likewise.
 321         (Target_powerpc::Relocate::relocate): Edit TOC indirect code
 322         to TOC relative.  Don't emit "toc optimization is not supported"
 323         error here.
 324
 325 2017-01-10  Cary Coutant  <ccoutant@gmail.com>
 326
 327         * aarch64.cc (AArch64_relobj::do_relocate_sections): Call
 328         Sized_relobj_file::relocate_section_range().
 329         * arm.cc (Arm_relobj::do_relocate_sections): Likewise.
 330         * object.h (Sized_relobj_file::relocate_section_range): New method.
 331         * reloc.cc (Sized_relobj_file::do_relocate_sections): Move
 332         implementation...
 333         (Sized_relobj_file::relocate_section_range): ...to new method.
 334
 335 2017-01-10  Alan Modra  <amodra@gmail.com>
 336
 337         * testsuite/ver_test_8.sh: Accept .TOC. in lieu of
 338         _GLOBAL_OFFSET_TABLE_.  Allow zero count.
 339         * testsuite/copy_test_relro_1.cc (c, q): New vars.
 340         * testsuite/copy_test_relro.cc: Rewrite to test read-only
 341         status of variables directly.  Reference new vars in
 342         read-only data.
 343
 344 2017-01-10  Alan Modra  <amodra@gmail.com>
 345
 346         * options.h: Add --secure-plt option.
 347         * powerpc.cc (Target_powerpc::Scan::local): Detect and error
 348         on -fPIC -mbss-plt code.
 349         (Target_powerpc::Scan::global): Likewise.
 350
 351 2017-01-09  Alan Modra  <amodra@gmail.com>
 352
 353         * powerpc.cc (Target_powerpc::make_plt_section): Point sh_info of
 354         ".rela.plt" at ".plt".
 355
 356 2017-01-07  Alan Modra  <amodra@gmail.com>
 357
 358         * powerpc.cc: Use shorter equivalent elfcpp typedef for
 359         Reltype and reloc_size throughout.
 360         (Target_powerpc::symval_for_branch): Exclude dynamic symbols.
 361         (Target_powerpc::Scan::local): Use local var r_sym.
 362         (Target_powerpc::Scan::global: Likewise.
 363         (Target_powerpc::Relocate::relocate): Delete shadowing r_sym.
 364
 365 2017-01-02  Alan Modra  <amodra@gmail.com>
 366
 367         Update year range in copyright notice of all files.
 368
 369 For older changes see ChangeLog-2016
 370 \f
 371 Copyright (C) 2017 Free Software Foundation, Inc.
 372
 373 Copying and distribution of this file, with or without modification,
 374 are permitted in any medium without royalty provided the copyright
 375 notice and this notice are preserved.
 376
 377 Local Variables:
 378 mode: change-log
 379 left-margin: 8
 380 fill-column: 74
 381 version-control: never
 382 End: