binutils-gdb/ld/emulparams/extern_protected_data.sh

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[x86] Resolve non-PIC undefweak symbols in executable For i386 and x86-64, non-PIC references to undefined weak symbols are resolved without dynamic relocation when creating executable. Resolved undefined weak symbols are removed from the dynamic symbol table in executable. One exception is on i386, we need resolved undefined weak symbols in the dynamic symbol table in PIE if input relocatable files contain branchs without PLT so that we can branch to 0 with dynamic relocation in text section. This makes behaviors of dynamic executable and position independent executable predictable with mixed PIC and non-PIC references to undefined weak symbols. If all references to undefined weak symbols are PIC, dynamic relocations against undefined weak symbols will be generated in executable unless -z nodynamic-undefined-weak is passed to linker. bfd/ PR ld/19636 PR ld/19704 PR ld/19719 * elf32-i386.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New. (elf_i386_link_hash_entry): Add has_got_reloc and has_non_got_reloc. (elf_i386_link_hash_table): Add interp. (elf_i386_link_hash_newfunc): Initialize has_got_reloc and has_non_got_reloc. (elf_i386_copy_indirect_symbol): Copy has_got_reloc and has_non_got_reloc. (elf_i386_check_relocs): Set has_got_reloc and has_non_got_reloc. (elf_i386_fixup_symbol): New function. (elf_i386_pie_finish_undefweak_symbol): Likewise. (elf_i386_allocate_dynrelocs): Don't allocate space for dynamic relocations and discard relocations against resolved undefined weak symbols in executable. Don't make resolved undefined weak symbols in executable dynamic. Keep dynamic non-GOT/non-PLT relocation against undefined weak symbols in PIE. (elf_i386_size_dynamic_sections): Set interp to .interp section. (elf_i386_relocate_section): Don't generate dynamic relocations against resolved undefined weak symbols in PIE, except for R_386_PC32. (elf_i386_finish_dynamic_symbol): Keep PLT/GOT entries without dynamic PLT/GOT relocations for resolved undefined weak symbols. Don't generate dynamic relocation against resolved undefined weak symbol in executable. (elf_i386_finish_dynamic_sections): Call elf_i386_pie_finish_undefweak_symbol on all symbols in PIE. (elf_backend_fixup_symbol): New. * elf64-x86-64.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New. (elf_x86_64_link_hash_entry): Add has_got_reloc and has_non_got_reloc. (elf_x86_64_link_hash_table): Add interp. (elf_x86_64_link_hash_newfunc): Initialize has_got_reloc and has_non_got_reloc. (elf_x86_64_copy_indirect_symbol): Copy has_got_reloc and has_non_got_reloc. (elf_x86_64_check_relocs): Set has_got_reloc and has_non_got_reloc. (elf_x86_64_fixup_symbol): New function. (elf_x86_64_pie_finish_undefweak_symbol): Likewise. (elf_x86_64_allocate_dynrelocs): Don't allocate space for dynamic relocations and discard relocations against resolved undefined weak symbols in executable. Don't make resolved undefined weak symbols in executable dynamic. (elf_x86_64_size_dynamic_sections): Set interp to .interp section. (elf_x86_64_relocate_section): Check relocation overflow for dynamic relocations against unresolved weak undefined symbols. Don't generate dynamic relocations against resolved weak undefined symbols in PIE. (elf_x86_64_finish_dynamic_symbol): Keep PLT/GOT entries without dynamic PLT/GOT relocations for resolved undefined weak symbols. Don't generate dynamic relocation against resolved undefined weak symbol in executable. (elf_x86_64_finish_dynamic_sections): Call elf_x86_64_pie_finish_undefweak_symbol on all symbols in PIE. (elf_backend_fixup_symbol): New. include/ PR ld/19636 PR ld/19704 PR ld/19719 * bfdlink.h (bfd_link_info): Add dynamic_undefined_weak. ld/ PR ld/19636 PR ld/19704 PR ld/19719 * Makefile.am (ELF_X86_DEPS): Add dynamic_undefined_weak.sh. * Makefile.in: Regenerated. * NEWS: Mention -z nodynamic-undefined-weak. * ld.texinfo: Document -z nodynamic-undefined-weak. * ldmain.c (main): Initialize dynamic_undefined_weak to -1. * emulparams/dynamic_undefined_weak.sh: New file. * emulparams/elf32_x86_64.sh: Source dynamic_undefined_weak.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/extern_protected_data.sh (PARSE_AND_LIST_OPTIONS): Append. (PARSE_AND_LIST_ARGS_CASE_Z): Likewise. * testsuite/ld-elf/pr19719a.c: New file. * testsuite/ld-elf/pr19719b.c: Likewise. * testsuite/ld-elf/pr19719c.c: Likewise. * testsuite/ld-elf/pr19719d.c: Likewise. * testsuite/ld-i386/pr19636-1.s: Likewise. * testsuite/ld-i386/pr19636-1a.d: Likewise. * testsuite/ld-i386/pr19636-1b.d: Likewise. * testsuite/ld-i386/pr19636-1c.d: Likewise. * testsuite/ld-i386/pr19636-1d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-1d.d: Likewise. * testsuite/ld-i386/pr19636-1e.d: Likewise. * testsuite/ld-i386/pr19636-1f.d: Likewise. * testsuite/ld-i386/pr19636-1g.d: Likewise. * testsuite/ld-i386/pr19636-1h.d: Likewise. * testsuite/ld-i386/pr19636-1i.d: Likewise. * testsuite/ld-i386/pr19636-2.s: Likewise. * testsuite/ld-i386/pr19636-2a.d: Likewise. * testsuite/ld-i386/pr19636-2b.d: Likewise. * testsuite/ld-i386/pr19636-2c-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2c.d: Likewise. * testsuite/ld-i386/pr19636-2d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2d.d: Likewise. * testsuite/ld-i386/pr19636-2e-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2e.d: Likewise. * testsuite/ld-i386/pr19636-3.s: Likewise. * testsuite/ld-i386/pr19636-3a.d: Likewise. * testsuite/ld-i386/pr19636-3b.d: Likewise. * testsuite/ld-i386/pr19636-3c.d: Likewise. * testsuite/ld-i386/pr19636-3d.d: Likewise. * testsuite/ld-i386/pr19636-3e.d: Likewise. * testsuite/ld-i386/pr19636-3f.d: Likewise. * testsuite/ld-i386/pr19636-3g.d: Likewise. * testsuite/ld-i386/pr19636-4.s: Likewise. * testsuite/ld-i386/pr19636-4a.d: Likewise. * testsuite/ld-i386/pr19636-4b.d: Likewise. * testsuite/ld-i386/pr19636-4c.d: Likewise. * testsuite/ld-i386/pr19636-4d.d: Likewise. * testsuite/ld-i386/pr19704.out: Likewise. * testsuite/ld-i386/pr19704a.c: Likewise. * testsuite/ld-i386/pr19704b.c: Likewise. * testsuite/ld-x86-64/pr19636-1.s: Likewise. * testsuite/ld-x86-64/pr19636-1a.d: Likewise. * testsuite/ld-x86-64/pr19636-1b.d: Likewise. * testsuite/ld-x86-64/pr19636-1c.d: Likewise. * testsuite/ld-x86-64/pr19636-1d.d: Likewise. * testsuite/ld-x86-64/pr19636-1e.d: Likewise. * testsuite/ld-x86-64/pr19636-1f.d: Likewise. * testsuite/ld-x86-64/pr19636-1g.d: Likewise. * testsuite/ld-x86-64/pr19636-2.s: Likewise. * testsuite/ld-x86-64/pr19636-2a.d: Likewise. * testsuite/ld-x86-64/pr19636-2b.d: Likewise. * testsuite/ld-x86-64/pr19636-2c.d: Likewise. * testsuite/ld-x86-64/pr19636-2d-nacl.d: Likewise. * testsuite/ld-x86-64/pr19636-2d.d: Likewise. * testsuite/ld-x86-64/pr19636-2e.d: Likewise. * testsuite/ld-x86-64/pr19636-2f.d: Likewise. * testsuite/ld-x86-64/pr19636-2g.d: Likewise. * testsuite/ld-x86-64/pr19636-2h.d: Likewise. * testsuite/ld-x86-64/pr19636-2i.d: Likewise. * testsuite/ld-x86-64/pr19636-3.s: Likewise. * testsuite/ld-x86-64/pr19636-3a.d: Likewise. * testsuite/ld-x86-64/pr19636-3b.d: Likewise. * testsuite/ld-x86-64/pr19636-3c.d: Likewise. * testsuite/ld-x86-64/pr19636-3d.d: Likewise. * testsuite/ld-x86-64/pr19704.out: Likewise. * testsuite/ld-x86-64/pr19704a.c: Likewise. * testsuite/ld-x86-64/pr19704b.c: Likewise. * testsuite/ld-elf/shared.exp (mix_pic_and_non_pic): New. Run mix_pic_and_non_pic. * testsuite/ld-i386/i386.exp (undefined_weak): New. Run undefined_weak and PR ld/19636 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-x86-64/pr13082-3b.d: Updated. * testsuite/ld-x86-64/pr13082-4b.d: Likewise.
2016-02-26 20:16:15 +08:00
PARSE_AND_LIST_OPTIONS_NOEXTEN_PROTECTED_DATA='
Add -z noextern-protected-data to ld for ELF/x86 Address of protected data defined in the shared library may be external, i.e., due to copy relocation. By default, linker backend checks if relocations against protected data symbols are valid for building shared library and issues an error if relocation isn't allowed. The new option override linker backend default. When -z noextern-protected-data is used, updates on protected data symbols by another module won't be visibile to the resulting shared library. This option is specific to ELF/i386 and ELF/x86-64. bfd/ PR ld/pr17709 * elflink.c (_bfd_elf_adjust_dynamic_copy): Check info->extern_protected_data when warning copy relocs against protected symbols. (_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data when checking protected non-function symbols. include/ PR ld/pr17709 * bfdlink.h (bfd_link_info): Add extern_protected_data. ld/ PR ld/pr17709 * ld.texinfo: Document "-z noextern-protected-data". * ldmain.c (main): Initialize link_info.extern_protected_data to -1. * lexsup.c (elf_shlib_list_options): Add "-z [no]extern-protected-data". * emulparams/elf32_x86_64.sh: Source extern_protected_data.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Source extern_protected_data.sh. (PARSE_AND_LIST_OPTIONS): Renamed to ... (PARSE_AND_LIST_OPTIONS_BNDPLT): This. (PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ... (PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This. (PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT. (PARSE_AND_LIST_ARGS_CASE_Z): Append $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT. * emulparams/extern_protected_data.sh: New file. ld/testsuite/ PR ld/pr17709 * ld-i386/i386.exp: Run protected6b. * ld-i386/protected6b.d: New file. * ld-x86-64/protected6b.d: Likewise. * ld-x86-64/x86-64.exp: Run protected6b.
2015-04-14 19:12:55 +08:00
fprintf (file, _("\
-z noextern-protected-data Do not treat protected data symbol as external\n"));
elf: Add GNU_PROPERTY_1_NEEDED check If GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS is set on any input relocatable files: 1. Don't generate copy relocations. 2. Turn off extern_protected_data since it implies GNU_PROPERTY_NO_COPY_ON_PROTECTED. 3. Treate reference to protected symbols with indirect external access as local. 4. Set GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS on output. 5. When generating executable, clear this bit when there are non-GOT or non-PLT relocations in input relocatable files without the bit set. 6. Add -z [no]indirect-extern-access to control indirect external access. bfd/ * elf-bfd (elf_obj_tdata): Add has_indirect_extern_access. (elf_has_indirect_extern_access): New. * elf-properties.c (_bfd_elf_parse_gnu_properties): Set elf_has_indirect_extern_access and elf_has_no_copy_on_protected when seeing GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. (elf_write_gnu_propertie): Add an argument to pass link_info. Set needed_1_p for GNU_PROPERTY_1_NEEDED in memory. (_bfd_elf_link_setup_gnu_properties): Handle GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS for -z indirect-extern-access. Set nocopyreloc to true and extern_protected_data to false for indirect external access. (_bfd_elf_convert_gnu_properties): Updated. * elf32-i386.c (elf_i386_check_relocs): Set non_got_ref_without_indirect_extern_access on legacy non-GOT or non-PLT references. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (_bfd_elf_symbol_refs_local_p): Return true for STV_PROTECTED symbols with indirect external access. * elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): Clear indirect_extern_access for legacy non-GOT/non-PLT references. * elfxx-x86.h (elf_x86_link_hash_entry): Add non_got_ref_without_indirect_extern_access. include/ * bfdlink.h (bfd_link_info): Add indirect_extern_access and needed_1_p. Change nocopyreloc to int. ld/ * NEWS: Mention -z [no]indirect-extern-access * ld.texi: Document -z [no]indirect-extern-access * ldmain.c (main): Initialize link_info.indirect_extern_access to -1. * emulparams/extern_protected_data.sh: Support -z [no]indirect-extern-access. * testsuite/ld-elf/indirect-extern-access-1.rd: New file * testsuite/ld-elf/indirect-extern-access-1a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-1b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2.rd: Likewise. * testsuite/ld-elf/indirect-extern-access-2a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-3.rd: Likewise. * testsuite/ld-elf/indirect-extern-access.S: Likewise. * testsuite/ld-elf/property-1_needed-1b.d: Likewise. * testsuite/ld-elf/property-1_needed-1c.d: Likewise. * testsuite/ld-x86-64/indirect-extern-access.rd: Likewise. * testsuite/ld-x86-64/protected-data-1.h: Likewise. * testsuite/ld-x86-64/protected-data-1a.c: Likewise. * testsuite/ld-x86-64/protected-data-1b.c: Likewise. * testsuite/ld-x86-64/protected-data-2a.S: Likewise. * testsuite/ld-x86-64/protected-data-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2a.S: Likewise. * testsuite/ld-x86-64/protected-func-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2c.c: Likewise. * testsuite/ld-elf/linux-x86.exp: Run test with GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. * testsuite/ld-x86-64/x86-64.exp: Run tests for protected function and data with indirect external access.
2021-06-18 05:11:28 +08:00
fprintf (file, _("\
-z indirect-extern-access Enable indirect external access\n"));
fprintf (file, _("\
-z noindirect-extern-access Disable indirect external access (default)\n"));
Add -z noextern-protected-data to ld for ELF/x86 Address of protected data defined in the shared library may be external, i.e., due to copy relocation. By default, linker backend checks if relocations against protected data symbols are valid for building shared library and issues an error if relocation isn't allowed. The new option override linker backend default. When -z noextern-protected-data is used, updates on protected data symbols by another module won't be visibile to the resulting shared library. This option is specific to ELF/i386 and ELF/x86-64. bfd/ PR ld/pr17709 * elflink.c (_bfd_elf_adjust_dynamic_copy): Check info->extern_protected_data when warning copy relocs against protected symbols. (_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data when checking protected non-function symbols. include/ PR ld/pr17709 * bfdlink.h (bfd_link_info): Add extern_protected_data. ld/ PR ld/pr17709 * ld.texinfo: Document "-z noextern-protected-data". * ldmain.c (main): Initialize link_info.extern_protected_data to -1. * lexsup.c (elf_shlib_list_options): Add "-z [no]extern-protected-data". * emulparams/elf32_x86_64.sh: Source extern_protected_data.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Source extern_protected_data.sh. (PARSE_AND_LIST_OPTIONS): Renamed to ... (PARSE_AND_LIST_OPTIONS_BNDPLT): This. (PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ... (PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This. (PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT. (PARSE_AND_LIST_ARGS_CASE_Z): Append $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT. * emulparams/extern_protected_data.sh: New file. ld/testsuite/ PR ld/pr17709 * ld-i386/i386.exp: Run protected6b. * ld-i386/protected6b.d: New file. * ld-x86-64/protected6b.d: Likewise. * ld-x86-64/x86-64.exp: Run protected6b.
2015-04-14 19:12:55 +08:00
'
elf: Add GNU_PROPERTY_1_NEEDED check If GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS is set on any input relocatable files: 1. Don't generate copy relocations. 2. Turn off extern_protected_data since it implies GNU_PROPERTY_NO_COPY_ON_PROTECTED. 3. Treate reference to protected symbols with indirect external access as local. 4. Set GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS on output. 5. When generating executable, clear this bit when there are non-GOT or non-PLT relocations in input relocatable files without the bit set. 6. Add -z [no]indirect-extern-access to control indirect external access. bfd/ * elf-bfd (elf_obj_tdata): Add has_indirect_extern_access. (elf_has_indirect_extern_access): New. * elf-properties.c (_bfd_elf_parse_gnu_properties): Set elf_has_indirect_extern_access and elf_has_no_copy_on_protected when seeing GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. (elf_write_gnu_propertie): Add an argument to pass link_info. Set needed_1_p for GNU_PROPERTY_1_NEEDED in memory. (_bfd_elf_link_setup_gnu_properties): Handle GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS for -z indirect-extern-access. Set nocopyreloc to true and extern_protected_data to false for indirect external access. (_bfd_elf_convert_gnu_properties): Updated. * elf32-i386.c (elf_i386_check_relocs): Set non_got_ref_without_indirect_extern_access on legacy non-GOT or non-PLT references. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (_bfd_elf_symbol_refs_local_p): Return true for STV_PROTECTED symbols with indirect external access. * elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): Clear indirect_extern_access for legacy non-GOT/non-PLT references. * elfxx-x86.h (elf_x86_link_hash_entry): Add non_got_ref_without_indirect_extern_access. include/ * bfdlink.h (bfd_link_info): Add indirect_extern_access and needed_1_p. Change nocopyreloc to int. ld/ * NEWS: Mention -z [no]indirect-extern-access * ld.texi: Document -z [no]indirect-extern-access * ldmain.c (main): Initialize link_info.indirect_extern_access to -1. * emulparams/extern_protected_data.sh: Support -z [no]indirect-extern-access. * testsuite/ld-elf/indirect-extern-access-1.rd: New file * testsuite/ld-elf/indirect-extern-access-1a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-1b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2.rd: Likewise. * testsuite/ld-elf/indirect-extern-access-2a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-3.rd: Likewise. * testsuite/ld-elf/indirect-extern-access.S: Likewise. * testsuite/ld-elf/property-1_needed-1b.d: Likewise. * testsuite/ld-elf/property-1_needed-1c.d: Likewise. * testsuite/ld-x86-64/indirect-extern-access.rd: Likewise. * testsuite/ld-x86-64/protected-data-1.h: Likewise. * testsuite/ld-x86-64/protected-data-1a.c: Likewise. * testsuite/ld-x86-64/protected-data-1b.c: Likewise. * testsuite/ld-x86-64/protected-data-2a.S: Likewise. * testsuite/ld-x86-64/protected-data-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2a.S: Likewise. * testsuite/ld-x86-64/protected-func-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2c.c: Likewise. * testsuite/ld-elf/linux-x86.exp: Run test with GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. * testsuite/ld-x86-64/x86-64.exp: Run tests for protected function and data with indirect external access.
2021-06-18 05:11:28 +08:00
# Set link_info.indirect_extern_access to 2 to indicate that it is set
# by "-z indirect-extern-access".
[x86] Resolve non-PIC undefweak symbols in executable For i386 and x86-64, non-PIC references to undefined weak symbols are resolved without dynamic relocation when creating executable. Resolved undefined weak symbols are removed from the dynamic symbol table in executable. One exception is on i386, we need resolved undefined weak symbols in the dynamic symbol table in PIE if input relocatable files contain branchs without PLT so that we can branch to 0 with dynamic relocation in text section. This makes behaviors of dynamic executable and position independent executable predictable with mixed PIC and non-PIC references to undefined weak symbols. If all references to undefined weak symbols are PIC, dynamic relocations against undefined weak symbols will be generated in executable unless -z nodynamic-undefined-weak is passed to linker. bfd/ PR ld/19636 PR ld/19704 PR ld/19719 * elf32-i386.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New. (elf_i386_link_hash_entry): Add has_got_reloc and has_non_got_reloc. (elf_i386_link_hash_table): Add interp. (elf_i386_link_hash_newfunc): Initialize has_got_reloc and has_non_got_reloc. (elf_i386_copy_indirect_symbol): Copy has_got_reloc and has_non_got_reloc. (elf_i386_check_relocs): Set has_got_reloc and has_non_got_reloc. (elf_i386_fixup_symbol): New function. (elf_i386_pie_finish_undefweak_symbol): Likewise. (elf_i386_allocate_dynrelocs): Don't allocate space for dynamic relocations and discard relocations against resolved undefined weak symbols in executable. Don't make resolved undefined weak symbols in executable dynamic. Keep dynamic non-GOT/non-PLT relocation against undefined weak symbols in PIE. (elf_i386_size_dynamic_sections): Set interp to .interp section. (elf_i386_relocate_section): Don't generate dynamic relocations against resolved undefined weak symbols in PIE, except for R_386_PC32. (elf_i386_finish_dynamic_symbol): Keep PLT/GOT entries without dynamic PLT/GOT relocations for resolved undefined weak symbols. Don't generate dynamic relocation against resolved undefined weak symbol in executable. (elf_i386_finish_dynamic_sections): Call elf_i386_pie_finish_undefweak_symbol on all symbols in PIE. (elf_backend_fixup_symbol): New. * elf64-x86-64.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New. (elf_x86_64_link_hash_entry): Add has_got_reloc and has_non_got_reloc. (elf_x86_64_link_hash_table): Add interp. (elf_x86_64_link_hash_newfunc): Initialize has_got_reloc and has_non_got_reloc. (elf_x86_64_copy_indirect_symbol): Copy has_got_reloc and has_non_got_reloc. (elf_x86_64_check_relocs): Set has_got_reloc and has_non_got_reloc. (elf_x86_64_fixup_symbol): New function. (elf_x86_64_pie_finish_undefweak_symbol): Likewise. (elf_x86_64_allocate_dynrelocs): Don't allocate space for dynamic relocations and discard relocations against resolved undefined weak symbols in executable. Don't make resolved undefined weak symbols in executable dynamic. (elf_x86_64_size_dynamic_sections): Set interp to .interp section. (elf_x86_64_relocate_section): Check relocation overflow for dynamic relocations against unresolved weak undefined symbols. Don't generate dynamic relocations against resolved weak undefined symbols in PIE. (elf_x86_64_finish_dynamic_symbol): Keep PLT/GOT entries without dynamic PLT/GOT relocations for resolved undefined weak symbols. Don't generate dynamic relocation against resolved undefined weak symbol in executable. (elf_x86_64_finish_dynamic_sections): Call elf_x86_64_pie_finish_undefweak_symbol on all symbols in PIE. (elf_backend_fixup_symbol): New. include/ PR ld/19636 PR ld/19704 PR ld/19719 * bfdlink.h (bfd_link_info): Add dynamic_undefined_weak. ld/ PR ld/19636 PR ld/19704 PR ld/19719 * Makefile.am (ELF_X86_DEPS): Add dynamic_undefined_weak.sh. * Makefile.in: Regenerated. * NEWS: Mention -z nodynamic-undefined-weak. * ld.texinfo: Document -z nodynamic-undefined-weak. * ldmain.c (main): Initialize dynamic_undefined_weak to -1. * emulparams/dynamic_undefined_weak.sh: New file. * emulparams/elf32_x86_64.sh: Source dynamic_undefined_weak.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/extern_protected_data.sh (PARSE_AND_LIST_OPTIONS): Append. (PARSE_AND_LIST_ARGS_CASE_Z): Likewise. * testsuite/ld-elf/pr19719a.c: New file. * testsuite/ld-elf/pr19719b.c: Likewise. * testsuite/ld-elf/pr19719c.c: Likewise. * testsuite/ld-elf/pr19719d.c: Likewise. * testsuite/ld-i386/pr19636-1.s: Likewise. * testsuite/ld-i386/pr19636-1a.d: Likewise. * testsuite/ld-i386/pr19636-1b.d: Likewise. * testsuite/ld-i386/pr19636-1c.d: Likewise. * testsuite/ld-i386/pr19636-1d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-1d.d: Likewise. * testsuite/ld-i386/pr19636-1e.d: Likewise. * testsuite/ld-i386/pr19636-1f.d: Likewise. * testsuite/ld-i386/pr19636-1g.d: Likewise. * testsuite/ld-i386/pr19636-1h.d: Likewise. * testsuite/ld-i386/pr19636-1i.d: Likewise. * testsuite/ld-i386/pr19636-2.s: Likewise. * testsuite/ld-i386/pr19636-2a.d: Likewise. * testsuite/ld-i386/pr19636-2b.d: Likewise. * testsuite/ld-i386/pr19636-2c-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2c.d: Likewise. * testsuite/ld-i386/pr19636-2d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2d.d: Likewise. * testsuite/ld-i386/pr19636-2e-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2e.d: Likewise. * testsuite/ld-i386/pr19636-3.s: Likewise. * testsuite/ld-i386/pr19636-3a.d: Likewise. * testsuite/ld-i386/pr19636-3b.d: Likewise. * testsuite/ld-i386/pr19636-3c.d: Likewise. * testsuite/ld-i386/pr19636-3d.d: Likewise. * testsuite/ld-i386/pr19636-3e.d: Likewise. * testsuite/ld-i386/pr19636-3f.d: Likewise. * testsuite/ld-i386/pr19636-3g.d: Likewise. * testsuite/ld-i386/pr19636-4.s: Likewise. * testsuite/ld-i386/pr19636-4a.d: Likewise. * testsuite/ld-i386/pr19636-4b.d: Likewise. * testsuite/ld-i386/pr19636-4c.d: Likewise. * testsuite/ld-i386/pr19636-4d.d: Likewise. * testsuite/ld-i386/pr19704.out: Likewise. * testsuite/ld-i386/pr19704a.c: Likewise. * testsuite/ld-i386/pr19704b.c: Likewise. * testsuite/ld-x86-64/pr19636-1.s: Likewise. * testsuite/ld-x86-64/pr19636-1a.d: Likewise. * testsuite/ld-x86-64/pr19636-1b.d: Likewise. * testsuite/ld-x86-64/pr19636-1c.d: Likewise. * testsuite/ld-x86-64/pr19636-1d.d: Likewise. * testsuite/ld-x86-64/pr19636-1e.d: Likewise. * testsuite/ld-x86-64/pr19636-1f.d: Likewise. * testsuite/ld-x86-64/pr19636-1g.d: Likewise. * testsuite/ld-x86-64/pr19636-2.s: Likewise. * testsuite/ld-x86-64/pr19636-2a.d: Likewise. * testsuite/ld-x86-64/pr19636-2b.d: Likewise. * testsuite/ld-x86-64/pr19636-2c.d: Likewise. * testsuite/ld-x86-64/pr19636-2d-nacl.d: Likewise. * testsuite/ld-x86-64/pr19636-2d.d: Likewise. * testsuite/ld-x86-64/pr19636-2e.d: Likewise. * testsuite/ld-x86-64/pr19636-2f.d: Likewise. * testsuite/ld-x86-64/pr19636-2g.d: Likewise. * testsuite/ld-x86-64/pr19636-2h.d: Likewise. * testsuite/ld-x86-64/pr19636-2i.d: Likewise. * testsuite/ld-x86-64/pr19636-3.s: Likewise. * testsuite/ld-x86-64/pr19636-3a.d: Likewise. * testsuite/ld-x86-64/pr19636-3b.d: Likewise. * testsuite/ld-x86-64/pr19636-3c.d: Likewise. * testsuite/ld-x86-64/pr19636-3d.d: Likewise. * testsuite/ld-x86-64/pr19704.out: Likewise. * testsuite/ld-x86-64/pr19704a.c: Likewise. * testsuite/ld-x86-64/pr19704b.c: Likewise. * testsuite/ld-elf/shared.exp (mix_pic_and_non_pic): New. Run mix_pic_and_non_pic. * testsuite/ld-i386/i386.exp (undefined_weak): New. Run undefined_weak and PR ld/19636 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-x86-64/pr13082-3b.d: Updated. * testsuite/ld-x86-64/pr13082-4b.d: Likewise.
2016-02-26 20:16:15 +08:00
PARSE_AND_LIST_ARGS_CASE_Z_NOEXTEN_PROTECTED_DATA='
Add -z noextern-protected-data to ld for ELF/x86 Address of protected data defined in the shared library may be external, i.e., due to copy relocation. By default, linker backend checks if relocations against protected data symbols are valid for building shared library and issues an error if relocation isn't allowed. The new option override linker backend default. When -z noextern-protected-data is used, updates on protected data symbols by another module won't be visibile to the resulting shared library. This option is specific to ELF/i386 and ELF/x86-64. bfd/ PR ld/pr17709 * elflink.c (_bfd_elf_adjust_dynamic_copy): Check info->extern_protected_data when warning copy relocs against protected symbols. (_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data when checking protected non-function symbols. include/ PR ld/pr17709 * bfdlink.h (bfd_link_info): Add extern_protected_data. ld/ PR ld/pr17709 * ld.texinfo: Document "-z noextern-protected-data". * ldmain.c (main): Initialize link_info.extern_protected_data to -1. * lexsup.c (elf_shlib_list_options): Add "-z [no]extern-protected-data". * emulparams/elf32_x86_64.sh: Source extern_protected_data.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Source extern_protected_data.sh. (PARSE_AND_LIST_OPTIONS): Renamed to ... (PARSE_AND_LIST_OPTIONS_BNDPLT): This. (PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ... (PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This. (PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT. (PARSE_AND_LIST_ARGS_CASE_Z): Append $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT. * emulparams/extern_protected_data.sh: New file. ld/testsuite/ PR ld/pr17709 * ld-i386/i386.exp: Run protected6b. * ld-i386/protected6b.d: New file. * ld-x86-64/protected6b.d: Likewise. * ld-x86-64/x86-64.exp: Run protected6b.
2015-04-14 19:12:55 +08:00
else if (strcmp (optarg, "noextern-protected-data") == 0)
Use bool in ld * sysdep.h (POISON_BFD_BOOLEAN): Define. * configure.ac (elf_list_options, elf_shlib_list_options=false), (elf_plt_unwind_list_options=false): Replace FALSE with false, and TRUE with true. * emulparams/call_nop.sh, * emulparams/cet.sh, * emulparams/dynamic_undefined_weak.sh, * emulparams/elf32b4300.sh, * emulparams/elf32lm32.sh, * emulparams/elf32lr5900.sh, * emulparams/elf32lr5900n32.sh, * emulparams/elf32visium.sh, * emulparams/elf_x86_64.sh, * emulparams/extern_protected_data.sh, * emulparams/plt_unwind.sh, * emulparams/reloc_overflow.sh, * emulparams/static.sh, * emulparams/x86-64-lam.sh, * emultempl/aarch64elf.em, * emultempl/aix.em, * emultempl/alphaelf.em, * emultempl/armcoff.em, * emultempl/armelf.em, * emultempl/avrelf.em, * emultempl/beos.em, * emultempl/bfin.em, * emultempl/cr16elf.em, * emultempl/crxelf.em, * emultempl/cskyelf.em, * emultempl/elf.em, * emultempl/genelf.em, * emultempl/hppaelf.em, * emultempl/linux.em, * emultempl/m68hc1xelf.em, * emultempl/metagelf.em, * emultempl/mipself.em, * emultempl/mmix-elfnmmo.em, * emultempl/mmixelf.em, * emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nios2elf.em, * emultempl/pdp11.em, * emultempl/pe.em, * emultempl/pep.em, * emultempl/ppc32elf.em, * emultempl/ppc64elf.em, * emultempl/rxelf.em, * emultempl/rxlinux.em, * emultempl/scoreelf.em, * emultempl/solaris2.em, * emultempl/spuelf.em, * emultempl/ticoff.em, * emultempl/v850elf.em, * emultempl/vms.em, * emultempl/xtensaelf.em, * emultempl/z80.em, * ld.h, * ldbuildid.c, * ldbuildid.h, * ldcref.c, * ldctor.c, * ldctor.h, * ldelf.c, * ldelf.h, * ldelfgen.c, * ldelfgen.h, * ldemul.c, * ldemul.h, * ldexp.c, * ldexp.h, * ldfile.c, * ldfile.h, * ldgram.y, * ldlang.c, * ldlang.h, * ldmain.c, * ldmain.h, * ldmisc.c, * ldmisc.h, * ldwrite.c, * lexsup.c, * mri.c, * pe-dll.c, * pe-dll.h, * pep-dll.h, * plugin.c, * plugin.h, * testplug.c, * testplug2.c, * testplug3.c, * testplug4.c: Replace bfd_boolean with bool, FALSE with false, and TRUE with true. * configure: Regenerate.
2021-03-31 08:09:51 +08:00
link_info.extern_protected_data = false;
elf: Add GNU_PROPERTY_1_NEEDED check If GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS is set on any input relocatable files: 1. Don't generate copy relocations. 2. Turn off extern_protected_data since it implies GNU_PROPERTY_NO_COPY_ON_PROTECTED. 3. Treate reference to protected symbols with indirect external access as local. 4. Set GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS on output. 5. When generating executable, clear this bit when there are non-GOT or non-PLT relocations in input relocatable files without the bit set. 6. Add -z [no]indirect-extern-access to control indirect external access. bfd/ * elf-bfd (elf_obj_tdata): Add has_indirect_extern_access. (elf_has_indirect_extern_access): New. * elf-properties.c (_bfd_elf_parse_gnu_properties): Set elf_has_indirect_extern_access and elf_has_no_copy_on_protected when seeing GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. (elf_write_gnu_propertie): Add an argument to pass link_info. Set needed_1_p for GNU_PROPERTY_1_NEEDED in memory. (_bfd_elf_link_setup_gnu_properties): Handle GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS for -z indirect-extern-access. Set nocopyreloc to true and extern_protected_data to false for indirect external access. (_bfd_elf_convert_gnu_properties): Updated. * elf32-i386.c (elf_i386_check_relocs): Set non_got_ref_without_indirect_extern_access on legacy non-GOT or non-PLT references. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (_bfd_elf_symbol_refs_local_p): Return true for STV_PROTECTED symbols with indirect external access. * elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): Clear indirect_extern_access for legacy non-GOT/non-PLT references. * elfxx-x86.h (elf_x86_link_hash_entry): Add non_got_ref_without_indirect_extern_access. include/ * bfdlink.h (bfd_link_info): Add indirect_extern_access and needed_1_p. Change nocopyreloc to int. ld/ * NEWS: Mention -z [no]indirect-extern-access * ld.texi: Document -z [no]indirect-extern-access * ldmain.c (main): Initialize link_info.indirect_extern_access to -1. * emulparams/extern_protected_data.sh: Support -z [no]indirect-extern-access. * testsuite/ld-elf/indirect-extern-access-1.rd: New file * testsuite/ld-elf/indirect-extern-access-1a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-1b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2.rd: Likewise. * testsuite/ld-elf/indirect-extern-access-2a.c: Likewise. * testsuite/ld-elf/indirect-extern-access-2b.c: Likewise. * testsuite/ld-elf/indirect-extern-access-3.rd: Likewise. * testsuite/ld-elf/indirect-extern-access.S: Likewise. * testsuite/ld-elf/property-1_needed-1b.d: Likewise. * testsuite/ld-elf/property-1_needed-1c.d: Likewise. * testsuite/ld-x86-64/indirect-extern-access.rd: Likewise. * testsuite/ld-x86-64/protected-data-1.h: Likewise. * testsuite/ld-x86-64/protected-data-1a.c: Likewise. * testsuite/ld-x86-64/protected-data-1b.c: Likewise. * testsuite/ld-x86-64/protected-data-2a.S: Likewise. * testsuite/ld-x86-64/protected-data-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2a.S: Likewise. * testsuite/ld-x86-64/protected-func-2b.S: Likewise. * testsuite/ld-x86-64/protected-func-2c.c: Likewise. * testsuite/ld-elf/linux-x86.exp: Run test with GNU_PROPERTY_1_NEEDED_INDIRECT_EXTERN_ACCESS. * testsuite/ld-x86-64/x86-64.exp: Run tests for protected function and data with indirect external access.
2021-06-18 05:11:28 +08:00
else if (strcmp (optarg, "indirect-extern-access") == 0)
link_info.indirect_extern_access = 2;
else if (strcmp (optarg, "noindirect-extern-access") == 0)
link_info.indirect_extern_access = 0;
Add -z noextern-protected-data to ld for ELF/x86 Address of protected data defined in the shared library may be external, i.e., due to copy relocation. By default, linker backend checks if relocations against protected data symbols are valid for building shared library and issues an error if relocation isn't allowed. The new option override linker backend default. When -z noextern-protected-data is used, updates on protected data symbols by another module won't be visibile to the resulting shared library. This option is specific to ELF/i386 and ELF/x86-64. bfd/ PR ld/pr17709 * elflink.c (_bfd_elf_adjust_dynamic_copy): Check info->extern_protected_data when warning copy relocs against protected symbols. (_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data when checking protected non-function symbols. include/ PR ld/pr17709 * bfdlink.h (bfd_link_info): Add extern_protected_data. ld/ PR ld/pr17709 * ld.texinfo: Document "-z noextern-protected-data". * ldmain.c (main): Initialize link_info.extern_protected_data to -1. * lexsup.c (elf_shlib_list_options): Add "-z [no]extern-protected-data". * emulparams/elf32_x86_64.sh: Source extern_protected_data.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Source extern_protected_data.sh. (PARSE_AND_LIST_OPTIONS): Renamed to ... (PARSE_AND_LIST_OPTIONS_BNDPLT): This. (PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ... (PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This. (PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT. (PARSE_AND_LIST_ARGS_CASE_Z): Append $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT. * emulparams/extern_protected_data.sh: New file. ld/testsuite/ PR ld/pr17709 * ld-i386/i386.exp: Run protected6b. * ld-i386/protected6b.d: New file. * ld-x86-64/protected6b.d: Likewise. * ld-x86-64/x86-64.exp: Run protected6b.
2015-04-14 19:12:55 +08:00
'
[x86] Resolve non-PIC undefweak symbols in executable For i386 and x86-64, non-PIC references to undefined weak symbols are resolved without dynamic relocation when creating executable. Resolved undefined weak symbols are removed from the dynamic symbol table in executable. One exception is on i386, we need resolved undefined weak symbols in the dynamic symbol table in PIE if input relocatable files contain branchs without PLT so that we can branch to 0 with dynamic relocation in text section. This makes behaviors of dynamic executable and position independent executable predictable with mixed PIC and non-PIC references to undefined weak symbols. If all references to undefined weak symbols are PIC, dynamic relocations against undefined weak symbols will be generated in executable unless -z nodynamic-undefined-weak is passed to linker. bfd/ PR ld/19636 PR ld/19704 PR ld/19719 * elf32-i386.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New. (elf_i386_link_hash_entry): Add has_got_reloc and has_non_got_reloc. (elf_i386_link_hash_table): Add interp. (elf_i386_link_hash_newfunc): Initialize has_got_reloc and has_non_got_reloc. (elf_i386_copy_indirect_symbol): Copy has_got_reloc and has_non_got_reloc. (elf_i386_check_relocs): Set has_got_reloc and has_non_got_reloc. (elf_i386_fixup_symbol): New function. (elf_i386_pie_finish_undefweak_symbol): Likewise. (elf_i386_allocate_dynrelocs): Don't allocate space for dynamic relocations and discard relocations against resolved undefined weak symbols in executable. Don't make resolved undefined weak symbols in executable dynamic. Keep dynamic non-GOT/non-PLT relocation against undefined weak symbols in PIE. (elf_i386_size_dynamic_sections): Set interp to .interp section. (elf_i386_relocate_section): Don't generate dynamic relocations against resolved undefined weak symbols in PIE, except for R_386_PC32. (elf_i386_finish_dynamic_symbol): Keep PLT/GOT entries without dynamic PLT/GOT relocations for resolved undefined weak symbols. Don't generate dynamic relocation against resolved undefined weak symbol in executable. (elf_i386_finish_dynamic_sections): Call elf_i386_pie_finish_undefweak_symbol on all symbols in PIE. (elf_backend_fixup_symbol): New. * elf64-x86-64.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): New. (elf_x86_64_link_hash_entry): Add has_got_reloc and has_non_got_reloc. (elf_x86_64_link_hash_table): Add interp. (elf_x86_64_link_hash_newfunc): Initialize has_got_reloc and has_non_got_reloc. (elf_x86_64_copy_indirect_symbol): Copy has_got_reloc and has_non_got_reloc. (elf_x86_64_check_relocs): Set has_got_reloc and has_non_got_reloc. (elf_x86_64_fixup_symbol): New function. (elf_x86_64_pie_finish_undefweak_symbol): Likewise. (elf_x86_64_allocate_dynrelocs): Don't allocate space for dynamic relocations and discard relocations against resolved undefined weak symbols in executable. Don't make resolved undefined weak symbols in executable dynamic. (elf_x86_64_size_dynamic_sections): Set interp to .interp section. (elf_x86_64_relocate_section): Check relocation overflow for dynamic relocations against unresolved weak undefined symbols. Don't generate dynamic relocations against resolved weak undefined symbols in PIE. (elf_x86_64_finish_dynamic_symbol): Keep PLT/GOT entries without dynamic PLT/GOT relocations for resolved undefined weak symbols. Don't generate dynamic relocation against resolved undefined weak symbol in executable. (elf_x86_64_finish_dynamic_sections): Call elf_x86_64_pie_finish_undefweak_symbol on all symbols in PIE. (elf_backend_fixup_symbol): New. include/ PR ld/19636 PR ld/19704 PR ld/19719 * bfdlink.h (bfd_link_info): Add dynamic_undefined_weak. ld/ PR ld/19636 PR ld/19704 PR ld/19719 * Makefile.am (ELF_X86_DEPS): Add dynamic_undefined_weak.sh. * Makefile.in: Regenerated. * NEWS: Mention -z nodynamic-undefined-weak. * ld.texinfo: Document -z nodynamic-undefined-weak. * ldmain.c (main): Initialize dynamic_undefined_weak to -1. * emulparams/dynamic_undefined_weak.sh: New file. * emulparams/elf32_x86_64.sh: Source dynamic_undefined_weak.sh. * emulparams/elf_i386.sh: Likewise. * emulparams/elf_i386_be.sh: Likewise. * emulparams/elf_i386_chaos.sh: Likewise. * emulparams/elf_i386_ldso.sh: Likewise. * emulparams/elf_i386_vxworks.sh: Likewise. * emulparams/elf_iamcu.sh: Likewise. * emulparams/elf_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Likewise. * emulparams/extern_protected_data.sh (PARSE_AND_LIST_OPTIONS): Append. (PARSE_AND_LIST_ARGS_CASE_Z): Likewise. * testsuite/ld-elf/pr19719a.c: New file. * testsuite/ld-elf/pr19719b.c: Likewise. * testsuite/ld-elf/pr19719c.c: Likewise. * testsuite/ld-elf/pr19719d.c: Likewise. * testsuite/ld-i386/pr19636-1.s: Likewise. * testsuite/ld-i386/pr19636-1a.d: Likewise. * testsuite/ld-i386/pr19636-1b.d: Likewise. * testsuite/ld-i386/pr19636-1c.d: Likewise. * testsuite/ld-i386/pr19636-1d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-1d.d: Likewise. * testsuite/ld-i386/pr19636-1e.d: Likewise. * testsuite/ld-i386/pr19636-1f.d: Likewise. * testsuite/ld-i386/pr19636-1g.d: Likewise. * testsuite/ld-i386/pr19636-1h.d: Likewise. * testsuite/ld-i386/pr19636-1i.d: Likewise. * testsuite/ld-i386/pr19636-2.s: Likewise. * testsuite/ld-i386/pr19636-2a.d: Likewise. * testsuite/ld-i386/pr19636-2b.d: Likewise. * testsuite/ld-i386/pr19636-2c-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2c.d: Likewise. * testsuite/ld-i386/pr19636-2d-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2d.d: Likewise. * testsuite/ld-i386/pr19636-2e-nacl.d: Likewise. * testsuite/ld-i386/pr19636-2e.d: Likewise. * testsuite/ld-i386/pr19636-3.s: Likewise. * testsuite/ld-i386/pr19636-3a.d: Likewise. * testsuite/ld-i386/pr19636-3b.d: Likewise. * testsuite/ld-i386/pr19636-3c.d: Likewise. * testsuite/ld-i386/pr19636-3d.d: Likewise. * testsuite/ld-i386/pr19636-3e.d: Likewise. * testsuite/ld-i386/pr19636-3f.d: Likewise. * testsuite/ld-i386/pr19636-3g.d: Likewise. * testsuite/ld-i386/pr19636-4.s: Likewise. * testsuite/ld-i386/pr19636-4a.d: Likewise. * testsuite/ld-i386/pr19636-4b.d: Likewise. * testsuite/ld-i386/pr19636-4c.d: Likewise. * testsuite/ld-i386/pr19636-4d.d: Likewise. * testsuite/ld-i386/pr19704.out: Likewise. * testsuite/ld-i386/pr19704a.c: Likewise. * testsuite/ld-i386/pr19704b.c: Likewise. * testsuite/ld-x86-64/pr19636-1.s: Likewise. * testsuite/ld-x86-64/pr19636-1a.d: Likewise. * testsuite/ld-x86-64/pr19636-1b.d: Likewise. * testsuite/ld-x86-64/pr19636-1c.d: Likewise. * testsuite/ld-x86-64/pr19636-1d.d: Likewise. * testsuite/ld-x86-64/pr19636-1e.d: Likewise. * testsuite/ld-x86-64/pr19636-1f.d: Likewise. * testsuite/ld-x86-64/pr19636-1g.d: Likewise. * testsuite/ld-x86-64/pr19636-2.s: Likewise. * testsuite/ld-x86-64/pr19636-2a.d: Likewise. * testsuite/ld-x86-64/pr19636-2b.d: Likewise. * testsuite/ld-x86-64/pr19636-2c.d: Likewise. * testsuite/ld-x86-64/pr19636-2d-nacl.d: Likewise. * testsuite/ld-x86-64/pr19636-2d.d: Likewise. * testsuite/ld-x86-64/pr19636-2e.d: Likewise. * testsuite/ld-x86-64/pr19636-2f.d: Likewise. * testsuite/ld-x86-64/pr19636-2g.d: Likewise. * testsuite/ld-x86-64/pr19636-2h.d: Likewise. * testsuite/ld-x86-64/pr19636-2i.d: Likewise. * testsuite/ld-x86-64/pr19636-3.s: Likewise. * testsuite/ld-x86-64/pr19636-3a.d: Likewise. * testsuite/ld-x86-64/pr19636-3b.d: Likewise. * testsuite/ld-x86-64/pr19636-3c.d: Likewise. * testsuite/ld-x86-64/pr19636-3d.d: Likewise. * testsuite/ld-x86-64/pr19704.out: Likewise. * testsuite/ld-x86-64/pr19704a.c: Likewise. * testsuite/ld-x86-64/pr19704b.c: Likewise. * testsuite/ld-elf/shared.exp (mix_pic_and_non_pic): New. Run mix_pic_and_non_pic. * testsuite/ld-i386/i386.exp (undefined_weak): New. Run undefined_weak and PR ld/19636 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-x86-64/pr13082-3b.d: Updated. * testsuite/ld-x86-64/pr13082-4b.d: Likewise.
2016-02-26 20:16:15 +08:00
PARSE_AND_LIST_OPTIONS="$PARSE_AND_LIST_OPTIONS $PARSE_AND_LIST_OPTIONS_NOEXTEN_PROTECTED_DATA"
PARSE_AND_LIST_ARGS_CASE_Z="$PARSE_AND_LIST_ARGS_CASE_Z $PARSE_AND_LIST_ARGS_CASE_Z_NOEXTEN_PROTECTED_DATA"