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Miscellaneous ld tidies Localise a struct, prevent an unneeded symbol lookup, and fix a testcase. ld/ * ld.h (struct map_symbol_def): Move to.. * ldlang.h: ..here. * ldlang.c (print_assignment): Don't set expld.assign_name to dot. ld/testsuite/ * ld-scripts/pr14962-2.d: Correct target triple.
2014-01-22 02:21:19 +00:00
2014-01-22 Alan Modra <amodra@gmail.com>
* ld.h (struct map_symbol_def): Move to..
* ldlang.h: ..here.
* ldlang.c (print_assignment): Don't set expld.assign_name to dot.
Make assignments to dot keep an empty output section. An assignment to dot in an output section that allocates space of course keeps the output section. Here, I'm changing the behaviour for assignments that don't allocate space. The idea is not so much to allow people to force output of an empty section with ". = .", but to fix cases where an otherwise empty section has padding added by an alignment expression that changes with relaxation or .eh_frame editing. Such a section might have zero size before relaxation and so be stripped incorrectly. ld/ * ld.texinfo (Output Section Discarding): Mention assigning to dot as a way of keeping otherwise empty sections. * ldexp.c (is_dot, is_value, is_sym_value, is_dot_ne_0, is_dot_plus_0, is_align_conditional): New predicates. (exp_fold_tree_1): Set SEC_KEEP when assigning to dot inside an output section, except for some special cases. * scripttempl/elfmicroblaze.sc: Use canonical form to align at end of .heap and .stack. ld/testsuite/ * ld-shared/elf-offset.ld: Align end of .bss with canonical form of ALIGN that allows an empty .bss to be removed. * ld-arm/arm-dyn.ld: Likewise. * ld-arm/arm-lib.ld: Likewise. * ld-elfvsb/elf-offset.ld: Likewise. * ld-mips-elf/mips-dyn.ld: Likewise. * ld-mips-elf/mips-lib.ld: Likewise. * ld-arm/arm-no-rel-plt.ld: Remove duplicate ALIGN. * ld-powerpc/vle-multiseg-1.ld: Remove ALIGN at start of section. ALIGN address of section instead. * ld-powerpc/vle-multiseg-2.ld: Likewise. * ld-powerpc/vle-multiseg-3.ld: Likewise. * ld-powerpc/vle-multiseg-4.ld: Likewise. * ld-powerpc/vle-multiseg-6.ld: Likewise. * ld-scripts/empty-aligned.d: Check section headers not program headers. Remove xfail and notarget. * ld-scripts/empty-aligned.t: Use canonical ALIGN for end of .text2.
2014-01-22 01:13:03 +00:00
2014-01-22 Alan Modra <amodra@gmail.com>
* ld.texinfo (Output Section Discarding): Mention assigning to dot
as a way of keeping otherwise empty sections.
* ldexp.c (is_dot, is_value, is_sym_value, is_dot_ne_0,
is_dot_plus_0, is_align_conditional): New predicates.
(exp_fold_tree_1): Set SEC_KEEP when assigning to dot inside an
output section, except for some special cases.
* scripttempl/elfmicroblaze.sc: Use canonical form to align at
end of .heap and .stack.
[AArch64] Define LP64 BE linker name.
2014-01-20 18:20:04 +00:00
2014-01-20 Marcus Shawcroft <marcus.shawcroft@arm.com>
* emulparams/aarch64linuxb.sh (ELF_INTERPRETER_NAME): Define.
[AArch64] Define LP64 LE loader name.
2014-01-20 18:18:52 +00:00
2014-01-20 Marcus Shawcroft <marcus.shawcroft@arm.com>
* emulparams/aarch64linux.sh (ELF_INTERPRETER_NAME): Define.
Allow self-assignment for absolute symbols defined in a linker script Modifies ld machinery tracking linker script assignments to notice all assignments, not just those symbols mentioned in DEFINED(). ld/ PR ld/14962 * ldlang.h (struct lang_definedness_hash_entry): Add by_object and by_script. Make iteration a single bit field. (lang_track_definedness, lang_symbol_definition_iteration): Delete. (lang_symbol_defined): Declare. * ldlang.c (lang_statement_iteration): Expand comment a little. (lang_init <lang_definedness_table>): Make it bigger. (lang_track_definedness, lang_symbol_definition): Delete. (lang_definedness_newfunc): Update. (lang_symbol_defined): New function. (lang_update_definedness): Create entries here. Do track whether script definition of symbol is valid, even when also defined in an object file. * ldexp.c (fold_name <DEFINED>): Update. (fold_name <NAME>): Allow self-assignment for absolute symbols defined in a linker script. ld/testsuite/ * ld-scripts/pr14962-2.d, * ld-scripts/pr14962-2.t: New test. * ld-scripts/expr.exp: Run it.
2014-01-20 10:58:42 +00:00
2014-01-20 Alan Modra <amodra@gmail.com>
* ldlang.h (struct lang_definedness_hash_entry): Add by_object and
by_script. Make iteration a single bit field.
(lang_track_definedness, lang_symbol_definition_iteration): Delete.
(lang_symbol_defined): Declare.
* ldlang.c (lang_statement_iteration): Expand comment a little.
(lang_init <lang_definedness_table>): Make it bigger.
(lang_track_definedness, lang_symbol_definition): Delete.
(lang_definedness_newfunc): Update.
(lang_symbol_defined): New function.
(lang_update_definedness): Create entries here. Do track whether
script definition of symbol is valid, even when also defined in
an object file.
* ldexp.c (fold_name <DEFINED>): Update.
(fold_name <NAME>): Allow self-assignment for absolute symbols
defined in a linker script.
Fix duplicate output section statement lookup Tie output section statements to their associated output section via output section userdata. This allows us to avoid hash lookups which are slower and fail when multiple output sections have the same name. * ldlang.h (lang_output_section_get): Define. * ldlang.c (lang_output_section_get): Likewise. (init_os): Set the output_section userdata to the output section statement. * emultempl/hppaelf.em: Use lang_output_section_get instead of lang_output_section_find where applicable. * emultempl/aarch64elf.em: Likewise. * emultempl/aix.em: Likewise. * emultempl/armelf.em: Likewise. * emultempl/m68hc1xelf.em: Likewise. * emultempl/metagelf.em: Likewise. * emultempl/mipself.em: Likewise. * emultempl/ppc64elf.em: Likewise. * emultempl/spuelf.em: Likewise.
2014-01-20 03:46:16 +00:00
2014-01-20 Guy Martin <gmsoft@tuxicoman.be>
Alan Modra <amodra@gmail.com>
* ldlang.h (lang_output_section_get): Define.
* ldlang.c (lang_output_section_get): Likewise.
(init_os): Set the output_section userdata to the output
section statement.
* emultempl/hppaelf.em: Use lang_output_section_get instead of
lang_output_section_find where applicable.
* emultempl/aarch64elf.em: Likewise.
* emultempl/aix.em: Likewise.
* emultempl/armelf.em: Likewise.
* emultempl/m68hc1xelf.em: Likewise.
* emultempl/metagelf.em: Likewise.
* emultempl/mipself.em: Likewise.
* emultempl/ppc64elf.em: Likewise.
* emultempl/spuelf.em: Likewise.
Allow ld target customiser script to force on disk scripts. Mucking with EMULATION_LIBPATH has unwanted side effects. Allow nds32 emulparams scripts to disable compiled-in scripts naturally, by setting COMPILE_IN=no. * genscripts.sh (COMPILE_IN): Don't set if already set. * emulparams/nds32elf.sh: Don't clear EMULATION_LIBPATH, set COMPILE_IN=no. * emulparams/nds32elf16m.sh: Likewise. * emulparams/nds32elf_linux.sh: Likewise. * emultempl/aix.em: Test COMPILE_IN value is "yes". * emultempl/armcoff.em: Likewise. * emultempl/elf32.em: Likewise. * emultempl/generic.em: Likewise. * emultempl/gld960.em: Likewise. * emultempl/gld960c.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/lnk960.em: Likewise. * emultempl/m68kcoff.em: Likewise. * emultempl/sunos.em: Likewise. * emultempl/ticoff.em: Likewise.
2014-01-17 00:09:50 +00:00
2014-01-17 Alan Modra <amodra@gmail.com>
* genscripts.sh (COMPILE_IN): Don't set if already set.
* emulparams/nds32elf.sh: Don't clear EMULATION_LIBPATH, set
COMPILE_IN=no.
* emulparams/nds32elf16m.sh: Likewise.
* emulparams/nds32elf_linux.sh: Likewise.
* emultempl/aix.em: Test COMPILE_IN value is "yes".
* emultempl/armcoff.em: Likewise.
* emultempl/elf32.em: Likewise.
* emultempl/generic.em: Likewise.
* emultempl/gld960.em: Likewise.
* emultempl/gld960c.em: Likewise.
* emultempl/linux.em: Likewise.
* emultempl/lnk960.em: Likewise.
* emultempl/m68kcoff.em: Likewise.
* emultempl/sunos.em: Likewise.
* emultempl/ticoff.em: Likewise.
Skip directories with LIBPATH_SUFFIX_SKIP suffix On Linux/x86-64, when binutils is configured with --libdir=/usr/lib64, genscripts.sh treats /usr/lib64 as the default search directory. It puts /usr/lib64 in linker scripts for all emulations, like --- /* Script for -z combreloc: combine and sort reloc sections */ OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") OUTPUT_ARCH(i386) ENTRY(_start) SEARCH_DIR("/usr/x86_64-redhat-linux/lib32"); SEARCH_DIR("/usr/i386-redhat-linux/lib32"); SEARCH_DIR("/usr/lib6432"); SEARCH_DIR("/usr/local/lib32"); SEARCH_DIR("/lib32"); SEARCH_DIR("/usr/lib32"); SEARCH_DIR("/usr/i386-redhat-linux/lib"); SEARCH_DIR("/usr/lib64"); SEARCH_DIR("/usr/local/lib"); SEARCH_DIR("/lib"); SEARCH_DIR("/usr/lib"); --- /usr/lib6432 is odd and /usr/lib64 is wrong. This patch changes genscripts.sh to check LIBPATH_SUFFIX_SKIP if it is defined. It skips directories with LIBPATH_SUFFIX_SKIP suffix. PR ld/16456 * genscripts.sh: Don't search directory with LIBPATH_SUFFIX_SKIP suffix. * emulparams/elf32_x86_64.sh (LIBPATH_SUFFIX_SKIP): Set to 64 for elf32_x86_64 emulation. * emulparams/elf_i386.sh (LIBPATH_SUFFIX_SKIP): Set to 64 for elf_i386 emulation.
2014-01-15 20:53:04 +00:00
2014-01-16 H.J. Lu <hongjiu.lu@intel.com>
PR ld/16456
* genscripts.sh: Don't search directory with LIBPATH_SUFFIX_SKIP
suffix.
* emulparams/elf32_x86_64.sh (LIBPATH_SUFFIX_SKIP): Set to 64
for elf32_x86_64 emulation.
* emulparams/elf_i386.sh (LIBPATH_SUFFIX_SKIP): Set to 64
for elf_i386 emulation.
Tidy ld use of bfd_section userdata. A long time ago ld made use of userdata to tie an output section to its lang_input_statement_struct object file. Some time later Joern made map file printing of symbols at lot faster, using userdata on input sections. That complicated allocation of userdata, and when the output section use disappeared a year later, the code wasn't properly cleaned up. This patch does that cleanup, and also tidies the symbol printing code to not allocate userdata where it won't be needed. We don't print symbols defined in the absolute section or in output sections. * ld.h (fat_section_userdata_type, get_userdata): Move to.. * ldlang.h (input_section_userdata_type, get_userdata): ..here. * ldlang.c (init_map_userdata): Delete. Fold into.. (sort_def_symbol): ..here. Don't attach input section userdata to output sections or global bfd sections. (lang_map): Don't pre-allocate input section userdata. (init_os): Don't allocate userdata for output sections. (print_all_symbols): Update.
2014-01-16 01:17:25 +00:00
2014-01-16 Alan Modra <amodra@gmail.com>
* ld.h (fat_section_userdata_type, get_userdata): Move to..
* ldlang.h (input_section_userdata_type, get_userdata): ..here.
* ldlang.c (init_map_userdata): Delete. Fold into..
(sort_def_symbol): ..here. Don't attach input section userdata
to output sections or global bfd sections.
(lang_map): Don't pre-allocate input section userdata.
(init_os): Don't allocate userdata for output sections.
(print_all_symbols): Update.
Silence uninitialized warning on ehdr_start_save Older GCC, like 4.1/4.2, will issue an uninitialized warning on ehdr_start_save. This patch silences by using struct bfd_link_hash_entry ehdr_start_save = ehdr_start_save; * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Silence uninitialized warning on ehdr_start_save with older GCC.
2014-01-15 15:43:19 +00:00
2014-01-15 H.J. Lu <hongjiu.lu@intel.com>
* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation):
Silence uninitialized warning on ehdr_start_save with older
GCC.
non-PIC references to __ehdr_start in pie and shared Rather than hacking every backend to not discard dynamic relocations against an undefined hidden __ehdr_start, make it appear to be defined early. We want __ehdr_start hidden before size_dynamic_sections so that it isn't put in .dynsym, but we do need the dynamic relocations for a PIE or shared library with a non-PIC reference. Defining it early is wrong if we don't actually define the symbol later to its proper value. (In some cases we want to leave the symbol undefined, for example, when the ELF header isn't loaded, and we don't have this infomation available in before_allocation.) ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Define __ehdr_start before size_dynamic_sections and restore afterwards. ld/testsuite/ * ld-elf/ehdr_start-shared.d: New. * ld-elf/ehdr_start-userdef.d: xfail frv. * ld-elf/ehdr_start-weak.d: Likewise. * ld-elf/ehdr_start.d: Likewise.
2014-01-15 11:20:55 +00:00
2014-01-15 Alan Modra <amodra@gmail.com>
* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Define
__ehdr_start before size_dynamic_sections and restore afterwards.
Don't adjust LOAD segment to match GNU_RELRO segment Instead, fix Jakub's original code setting up the PR_GNU_RELRO header from the PT_LOAD header. PR ld/14207 PR ld/16322 PR binutils/16323 bfd/ * elf.c (assign_file_positions_for_load_sections): Revert last change. (assign_file_positions_for_non_load_sections): When setting up PT_GNU_RELRO header, don't require a corresponding PT_LOAD header that completely covers the relro region. ld/ * ldlang.c (lang_size_sections): Remove unneeded RELRO base adjust. Tidy comments. * ld.texinfo (DATA_SEGMENT_RELRO_END): Correct description. ld/testsuite/ * ld-x86-64/pr14207.d: Adjust
2014-01-10 10:41:46 +00:00
2014-01-10 Alan Modra <amodra@gmail.com>
PR ld/14207
PR ld/16322
PR binutils/16323
* ldlang.c (lang_size_sections): Remove unneeded RELRO base
adjust. Tidy comments.
* ld.texinfo (DATA_SEGMENT_RELRO_END): Correct description.
* emulparams/crislinux.sh (COMMONPAGESIZE): Define.
2014-01-10 00:25:26 +00:00
2014-01-10 Hans-Peter Nilsson <hp@axis.com>
* emulparams/crislinux.sh (COMMONPAGESIZE): Define.
Adjust LOAD segment to generate GNU_RELRO segment This patch fixes 2 GNU_RELRO segment bugs: 1. lang_size_sections didn't properly align base to the maximum alignment power of sections between DATA_SEGMENT_ALIGN and DATA_SEGMENT_RELRO_END. 2. ld failed to adjust LOAD segment to generate GNU_RELRO segment when LOAD segment doesn't fit GNU_RELRO segment. This is https://sourceware.org/bugzilla/show_bug.cgi?id=14207 We "fixed" ld by not generating GNU_RELRO segment. This patch adjusts LOAD segment to generate GNU_RELRO segment. It fixes PR ld/16322 and at the same time it also fixes PR binutils/16323 since now we can adjust LOAD segment if it is too small. bfd/ PR ld/14207 PR ld/16322 PR binutils/16323 * elf.c (_bfd_elf_map_sections_to_segments): Don't check section size for PT_GNU_RELRO segment. (assign_file_positions_for_load_sections): If PT_LOAD segment doesn't fit PT_GNU_RELRO segment, adjust its p_filesz and p_memsz. ld/ PR ld/14207 PR ld/16322 PR binutils/16323 * ldlang.c (lang_size_sections): Properly align RELRO base. ld/testsuite/ PR ld/14207 PR ld/16322 PR binutils/16323 * ld-elf/pr16322.d: New file. * ld-elf/pr16322.s: Likewise. * ld-x86-64/pr14207.d: Expect PT_GNU_RELRO segment.
2013-12-12 18:35:47 +00:00
2014-01-08 H.J. Lu <hongjiu.lu@intel.com>
PR ld/14207
PR ld/16322
PR binutils/16323
* ldlang.c (lang_size_sections): Properly align RELRO base.
Update copyright year to 2014 binutils/ * version.c (print_version): Update copyright year to 2014. gas/ * as.c (parse_args): Update copyright year to 2014. gold/ * version.cc (print_version): Update copyright year to 2014. ld/ * ldver.c (ldversion): Update copyright year to 2014. opcodes/ * i386-gen.c (process_copyright): Update copyright year to 2014.
2014-01-08 13:48:12 +00:00
2014-01-08 H.J. Lu <hongjiu.lu@intel.com>
* ldver.c (ldversion): Update copyright year to 2014.
New Year - binutils ChangeLog rotation
2014-01-08 13:32:12 +00:00
For older changes see ChangeLog-2013
19990502 sourceware import
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New Year - binutils ChangeLog rotation
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Copyright (C) 2014 Free Software Foundation, Inc.
Add copyright notices
2012-12-10 12:48:03 +00:00
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
19990502 sourceware import
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