Support PLT16 relocs against local symbols
[deliverable/binutils-gdb.git] / gold / ChangeLog
1 2018-04-09 Alan Modra <amodra@gmail.com>
2
3 * powerpc.cc (Target_powerpc::lplt_): New variable.
4 (Target_powerpc::lplt_section): Associated accessor.
5 (Target_powerpc::plt_off): Handle local non-ifunc symbols.
6 (Target_powerpc::make_lplt_section): New function.
7 (Target_powerpc::make_local_plt_entry): New function.
8 (Powerpc_relobj::do_relocate_sections): Write out lplt.
9 (Output_data_plt_powerpc::first_plt_entry_offset): Zero for lplt.
10 (Output_data_plt_powerpc::add_local_entry): New function.
11 (Output_data_plt_powerpc::do_write): Ignore lplt.
12 (Target_powerpc::make_iplt_section): Make lplt first.
13 (Target_powerpc::make_brlt_section): Make .branch_lt relro.
14 (Target_powerpc::Scan::local): Handle PLT16 relocs.
15
16 2018-04-09 Alan Modra <amodra@gmail.com>
17
18 * powerpc.cc (Target_powerpc::plt_off): New functions.
19 (is_plt16_reloc): New function.
20 (Stub_table::plt_off): Use Target_powerpc::plt_off.
21 (Stub_table::plt_call_size): Use plt_off.
22 (Stub_table::do_write): Likewise.
23 (Target_powerpc::Scan::get_reference_flags): Return RELATIVE_REF
24 for PLT16 relocations.
25 (Target_powerpc::Scan::reloc_needs_plt_for_ifunc): Return true
26 for PLT16 relocations.
27 (Target_powerpc::Scan::global): Make a PLT entry for PLT16 relocations.
28 (Target_powerpc::Relocate::relocate): Support PLT16 relocations.
29 (Powerpc_scan_relocatable_reloc::global_strategy): Return RELOC_SPECIAL
30 for ppc32 plt16 relocs.
31
32 2018-04-06 Cary Coutant <ccoutant@gmail.com>
33
34 * object.cc (Sized_relobj_file::include_section_group): Store
35 reference to Kept_section info for discarded comdat sections
36 regardless of size. Move size checking to map_to_kept_section.
37 (Sized_relobj_file::include_linkonce_section): Likewise.
38 (Sized_relobj_file::map_to_kept_section): Add section name parameter.
39 Insert size checking logic from above functions.
40 (Sized_relobj_file::find_kept_section_object): New method.
41 (Sized_relobj_file::get_symbol_name): New method.
42 * object.h (Sized_relobj_file::map_to_kept_section): Add section_name
43 parameter. Adjust all callers.
44 (Sized_relobj_file::find_kept_section_object): New method.
45 (Sized_relobj_file::get_symbol_name): New method.
46 (Sized_relobj_file::Kept_comdat_section): Replace object and shndx
47 fields with sh_size, kept_section, symndx, and is_comdat fields.
48 (Sized_relobj_file::set_kept_comdat_section): Replace kept_object
49 and kept_shndx parameters with is_comdat, symndx, sh_size, and
50 kept_section.
51 (Sized_relobj_file::get_kept_comdat_section): Likewise.
52 * target-reloc.h (enum Comdat_behavior): Change CB_WARNING to CB_ERROR.
53 Adjust all references.
54 (issue_undefined_symbol_error): New function template.
55 (relocate_section): Pass section name to map_to_kept_section.
56 Move discarded section code to new function above.
57 * aarch64.cc (Target_aarch64::scan_reloc_section_for_stubs): Move
58 declaration for gsym out one level. Call issue_discarded_error.
59 * arm.cc (Target_arm::scan_reloc_section_for_stubs): Likewise.
60 * powerpc.cc (Relocate_comdat_behavior): Change CB_WARNING to CB_ERROR.
61
62 2018-04-05 Cary Coutant <ccoutant@gmail.com>
63
64 * target-reloc.h (relocate_section): Add local symbol index or global
65 symbol name to warning about relocation that refers to discarded
66 section.
67
68 2018-04-05 James Cowgill <james.cowgill@mips.com>
69
70 Revert previous patch and apply revised patch.
71
72 PR gold/22770
73 * mips.cc (Mips_got_info::record_got_page_entry): Don't insert
74 Got_page_entry for object's GOT.
75 (Mips_got_info::add_got_page_entries): Add all pages from from's GOT.
76 Rename to add_got_page_count.
77 (Got_page_entry): Remove num_pages.
78
79 2018-04-05 James Cowgill <james.cowgill@mips.com>
80
81 PR gold/22770
82 * mips.cc (Mips_got_info::record_got_page_entry): Fetch existing
83 page entries for the object's GOT.
84
85 2018-04-05 Alan Modra <amodra@gmail.com>
86
87 * powerpc.cc (Target_powerpc::make_brlt_section): Make .branch_lt relro.
88
89 2018-04-04 Nick Clifton <nickc@redhat.com>
90
91 * po/es.po: Updated Spanish translation.
92
93 2018-04-02 Cary Coutant <ccoutant@gmail.com>
94
95 PR gold/23016
96 * incremental.cc (can_incremental_update): Check for unwind section
97 type.
98 * layout.h (Layout::layout): Add sh_type parameter.
99 * layout.cc (Layout::layout): Likewise.
100 (Layout::layout_reloc): Create new output reloc section if data
101 section does not already have one.
102 (Layout::layout_eh_frame): Check for unwind section type.
103 (Layout::make_eh_frame_section): Use unwind section type for .eh_frame
104 and .eh_frame_hdr.
105 * object.h (Sized_relobj_file::Shdr_write): New typedef.
106 (Sized_relobj_file::layout_section): Add sh_type parameter.
107 (Sized_relobj_file::Deferred_layout::Deferred_layout): Add sh_type
108 parameter.
109 * object.cc (Sized_relobj_file::check_eh_frame_flags): Check for
110 unwind section type.
111 (Sized_relobj_file::layout_section): Add sh_type parameter; pass it
112 to Layout::layout.
113 (Sized_relobj_file::do_layout): Make local copy of sh_type.
114 Force .eh_frame sections to unwind section type.
115 Pass sh_type to layout_section.
116 (Sized_relobj_file<size, big_endian>::do_layout_deferred_sections):
117 Pass sh_type to layout_section.
118 * output.cc (Output_section::Output_section): Initialize reloc_section_.
119 * output.h (Output_section::reloc_section): New method.
120 (Output_section::set_reloc_section): New method.
121 (Output_section::reloc_section_): New data member.
122 * target.h (Target::unwind_section_type): New method.
123 (Target::Target_info::unwind_section_type): New data member.
124
125 * aarch64.cc (aarch64_info): Add unwind_section_type.
126 * arm.cc (arm_info, arm_nacl_info): Likewise.
127 * i386.cc (i386_info, i386_nacl_info, iamcu_info): Likewise.
128 * mips.cc (mips_info, mips_nacl_info): Likewise.
129 * powerpc.cc (powerpc_info): Likewise.
130 * s390.cc (s390_info): Likewise.
131 * sparc.cc (sparc_info): Likewise.
132 * tilegx.cc (tilegx_info): Likewise.
133 * x86_64.cc (x86_64_info, x86_64_nacl_info): Likewise.
134
135 * testsuite/Makefile.am (pr23016_1, pr23016_2): New test cases.
136 * testsuite/Makefile.in: Regenerate.
137 * testsuite/testfile.cc: Add unwind_section_type.
138 * testsuite/pr23016_1.sh: New test script.
139 * testsuite/pr23016_1a.s: New source file.
140 * testsuite/pr23016_1b.s: New source file.
141 * testsuite/pr23016_2.sh: New test script.
142 * testsuite/pr23016_2a.s: New source file.
143 * testsuite/pr23016_2b.s: New source file.
144
145 2018-03-28 Cary Coutant <ccoutant@gmail.com>
146
147 PR gold/21423
148 PR gold/22500
149 * configure.ac: Call AC_USE_SYSTEM_EXTENSIONS.
150 Replace check for --enable-plugins with AC_PLUGINS.
151 * options.cc (parse_plugin, parse_plugin_opt): Remove #ifdef.
152 (General_options::finalize): Check if plugins enabled.
153 * options.h (--plugin, --plugin-opt): Define even if plugins not
154 enabled.
155 * Makefile.in: Regenerate.
156 * aclocal.m4: Regenerate.
157 * configure: Regenerate.
158 * testsuite/Makefile.in: Regenerate.
159
160 2018-03-28 Cary Coutant <ccoutant@gmail.com>
161
162 PR gold/22969
163 * aarch64-reloc.def: Add TLSLE_LDST* relocations.
164 * aarch64.cc (Target_aarch64::optimize_tls_reloc): Likewise.
165 (Target_aarch64::Scan::local): Likewise.
166 (Target_aarch64::Scan::global): Likewise.
167 (Target_aarch64::Relocate::relocate): Likewise.
168 (Target_aarch64::Relocate::relocate_tls): Likewise.
169
170 2018-03-27 Roland McGrath <mcgrathr@google.com>
171
172 * testsuite/split_x86_64.sh: Fix bad regexp.
173
174 2018-03-26 Cary Coutant <ccoutant@gmail.com>
175
176 PR gold/22868
177 * plugin.cc (Sized_pluginobj::do_add_symbols): Use a real section
178 index instead of SHN_ABS for defined symbols.
179 * testsuite/Makefile.am (plugin_pr22868): New test case.
180 * testsuite/Makefile.in: Regenerate
181 * testsuite/plugin_pr22868.sh: New test script.
182 * testsuite/plugin_pr22868_a.c: New source file.
183 * testsuite/plugin_pr22868_b.c: New source file.
184
185 2018-03-23 Cary Coutant <ccoutant@gmail.com>
186
187 * plugin.cc (link_or_copy_file): Remove newlines from warning messages.
188 Add pedantic check for return value from ::write.
189
190 2018-03-23 Cary Coutant <ccoutant@gmail.com>
191
192 * debug.h (DEBUG_PLUGIN): New constant.
193 (DEBUG_ALL): Add DEBUG_PLUGIN.
194 (debug_string_to_enum): Likewise.
195 * plugin.cc (make_sized_plugin_object): Add filename parameter.
196 (Plugin_recorder): New class.
197 (Plugin_manager::~Plugin_manager): Delete recorder_.
198 (Plugin_manager::load_plugins): Create and initialize recorder_.
199 (Plugin_manager::claim_file): Record claimed and unclaimed files.
200 (Plugin_manager::make_plugin_object): Use object name as name for
201 plugin object, if available.
202 (Plugin_manager::add_input_file): Record replacement files.
203 (Sized_pluginobj::do_add_symbols): Record plugin symbols.
204 (Plugin_finish::run): Call Plugin_recorder::finish().
205 (make_sized_plugin_object): Add filename parameter and pass to
206 Sized_pluginobj constructor.
207 * plugin.h (Plugin::filename): New method.
208 (Plugin::recorder): New method.
209 (Plugin::recorder_): New data member.
210
211 2018-03-07 Sriraman Tallam <tmsriram@google.com>
212
213 * layout.cc (Layout::default_section_order): Check for text section
214 prefixes.
215 (Layout::text_section_name_mapping): New static member.
216 (Layout::text_section_name_mapping_count): New static member.
217 (Layout::match_section_name): New static function.
218 (Layout::output_section_name): Check for text section prefixes.
219 * layout.h (Output_section_order::ORDER_TEXT_HOT): New enum value.
220 (Output_section_order::ORDER_TEXT_STARTUP): New enum value.
221 (Output_section_order::ORDER_TEXT_EXIT): New enum value.
222 (Output_section_order::ORDER_TEXT_UNLIKELY): New enum value.
223 (Layout::text_section_name_mapping): New static member.
224 (Layout::text_section_name_mapping_count): New static member.
225 (Layout::match_section_name): New static function.
226 * options.h (keep_text_section_prefix): New -z option.
227 * testsuite/Makefile.am (keep_text_section_prefix): New test.
228 * testsuite/Makefile.in: Regenerate.
229 * testsuite/keep_text_section_prefix.cc: New test source.
230 * testsuite/keep_text_section_prefix.sh: New test script.
231
232 2018-02-22 Sriraman Tallam <tmsriram@google.com>
233
234 * plugin.cc (get_wrap_symbols): New plugin interface.
235 (load): Add get_wrap_symbols to transfer vector.
236 * plugin-api.h (ld_plugin_get_wrap_symbols): New plugin interface.
237 * testsuite/plugin_test.c (onload): Call and check get_wrap_symbols
238 interface.
239 * testsuite/plugin_test_wrap_symbols.sh: New test script.
240 * testsuite/plugin_test_wrap_symbols_1.cc: New file.
241 * testsuite/plugin_test_wrap_symbols_2.cc: New file.
242 * testsuite/Makefile.am (plugin_test_wrap_symbols): New test.
243 * testsuite/Makefile.in: Regenerate.
244
245 2018-02-07 Sriraman Tallam <tmsriram@google.com>
246
247 * expression.cc (Symbol_expression::set_expr_sym_in_real_elf):
248 New method.
249 (Unary_expression::set_expr_sym_in_real_elf): New method.
250 (Binary_expression::set_expr_sym_in_real_elf): New method.
251 (Trinary_expression::set_expr_sym_in_real_elf): New method.
252 * plugin.cc (get_symbol_resolution_info): Fix symbol resolution if
253 defined or used in defsyms.
254 * plugin.h (Plugin_manager::is_defsym_def): New method.
255 (Plugin_manager::Plugin_manager): Initialize defsym_defines_set_.
256 (Plugin_manager::defsym_defines_set_): New member.
257 (Plugin_manager::Defsym_defines_set): New typedef.
258 * script.cc (Script_options::set_defsym_uses_in_real_elf): New method.
259 (Script_options::find_defsym_defs): New method.
260 * script.h (Expression::set_expr_sym_in_real_elf): New method.
261 (Symbol_assignment::is_defsym): New method.
262 (Symbol_assignment::value): New method.
263 (Script_options::find_defsym_defs): New method.
264 (Script_options::set_defsym_uses_in_real_elf): New method.
265 * testsuite/Makefile.am (plugin_test_defsym): New test.
266 * testsuite/Makefile.in: Regenerate.
267 * testsuite/plugin_test.c: Check for new symbol resolution.
268 * testsuite/plugin_test_defsym.sh: New script.
269 * testsuite/plugin_test_defsym.c: New test source.
270
271 2018-02-07 Alan Modra <amodra@gmail.com>
272
273 Revert 2018-01-17 Alan Modra <amodra@gmail.com>
274 * options.h: Remove --speculate-indirect-jumps support.
275 * powerpc.cc: Likewise.
276
277 2018-02-02 Cary Coutant <ccoutant@gmail.com>
278
279 * PR gold/22776
280 * dwarf_reader.cc (Sized_dwarf_line_info::read_header_prolog): Add
281 support for DWARF-4 line number tables.
282 * dwarf_reader.h (Sized_dwarf_line_info::max_ops_per_insn): New field.
283
284 2018-01-18 Alan Modra <amodra@gmail.com>
285
286 * powerpc.cc (param_plt_align): New function supplying default
287 --plt-align values. Use it..
288 (Stub_table::plt_call_align): ..here, and..
289 (Output_data_glink::global_entry_align): ..here.
290 (Stub_table::stub_align): Correct 32-bit minimum alignment.
291
292 2018-01-17 Alan Modra <amodra@gmail.com>
293
294 * options.h (speculate_indirect_jumps): New option.
295 * powerpc.cc (beqctrm, beqctrlm, crseteq): New insn constants.
296 (output_bctr): New function.
297 (Stub_table::plt_call_size): Add space for speculation barrier.
298 (Stub_table::branch_stub_size): Likewise.
299 (Output_data_glink::pltresolve_size): Likewise.
300 (Stub_table::do_write): Output speculation barriers.
301
302 2018-01-17 Alan Modra <amodra@gmail.com>
303
304 * options.h (plt_align): Support for PowerPC32 too.
305 * powerpc.cc (Stub_table::stub_align): Heed --plt-align for 32-bit.
306 (Stub_table::plt_call_size, branch_stub_size): Tidy.
307 (Stub_table::plt_call_align): Implement using stub_align.
308 (Output_data_glink::global_entry_align): New function.
309 (Output_data_glink::global_entry_off): New function.
310 (Output_data_glink::global_entry_address): Use global_entry_off.
311 (Output_data_glink::pltresolve_size): New function, replacing
312 pltresolve_size_ constant. Update all uses.
313 (Output_data_glink::add_global_entry): Align offset.
314 (Output_data_glink::set_final_data_size): Use global_entry_align.
315 (Stub_table::do_write): Don't pad __glink_PLTrelsolve with nops.
316 Tidy stub output. Use global_entry_off.
317
318 2018-01-15 Cary Coutant <ccoutant@gmail.com>
319
320 PR gold/22694
321 * options.h (-fuse-ld): Add correct helparg.
322
323 2018-01-15 Nick Clifton <nickc@redhat.com>
324
325 * po/uk.po: Updated Ukranian translation.
326
327 2018-01-13 Nick Clifton <nickc@redhat.com>
328
329 * po/gold.pot: Regenerated.
330
331 2018-01-13 Nick Clifton <nickc@redhat.com>
332
333 2.30 branch created.
334
335 2018-01-12 Cary Coutant <ccoutant@gmail.com>
336
337 * NEWS: Add new features in 1.15.
338 * version.cc (version_string): Bump to 1.15.
339
340 2018-01-12 Sterling Augustine <saugustine@google.com>
341
342 * cref.cc (Cref_inputs::Cref_table_compare::operator): Add
343 conditionals and calls to is_forwarder.
344
345 2018-01-03 Alan Modra <amodra@gmail.com>
346
347 Update year range in copyright notice of all files.
348
349 For older changes see ChangeLog-2017
350 \f
351 Copyright (C) 2018 Free Software Foundation, Inc.
352
353 Copying and distribution of this file, with or without modification,
354 are permitted in any medium without royalty provided the copyright
355 notice and this notice are preserved.
356
357 Local Variables:
358 mode: change-log
359 left-margin: 8
360 fill-column: 74
361 version-control: never
362 End:
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