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2019-08-09Add support for a MIPS specific .MIPS.xhash section.Mihailo Stojanovic1-0/+46
This patch is a reimplementation of [1] which was submitted in 2015 by Neil Schellenberger. Copyright issue was sorted out [2] last year. It proposed a new section (.gnu.xhash) and related dynamic tag (DT_GNU_XHASH). The new section would be virtually identical to the existing .gnu.hash except for the translation table (xlat) which would contain correct MIPS .dynsym indexes corresponding to the hashvals in chains. This is because MIPS ABI imposes a different ordering on the dynsyms than the one expected by the .gnu.hash section. Another addition would be a leading word (ngnusyms) which would contain the number of entries in the translation table. In this patch, the new section name and dynamic tag are changed to reflect the fact that the section should be treated as MIPS-specific (.MIPS.xhash and DT_MIPS_XHASH). This patch addresses the alignment issue as reported in [3], which is caused by the leading word added to the .MIPS.xhash section. Leading word is removed in this patch, and the number of entries in the translation table is now calculated using DT_MIPS_SYMTABNO dynamic tag (this is addressed by the corresponding glibc patch). Suggestions on coding style in [4] were taken into account. Existing GNU hash testcase was covered, and another one was added in the MIPS part of the testsuite. The other major change is reserving MIPS ABI version 5 for .MIPS.xhash, marking the need of support for .MIPS.xhash in the dynamic linker (again, addressed in the corresponding glibc patch). This is something which I am not sure of, especially after reading [5]. I am confused on whether this ABI version is reserved for IFUNC, or it can be used for this purpose. Already mentioned glibc patch is submitted at: https://sourceware.org/ml/libc-alpha/2019-06/msg00456.html [1] https://sourceware.org/ml/binutils/2015-10/msg00057.html [2] https://sourceware.org/ml/binutils/2018-03/msg00025.html [3] https://sourceware.org/ml/binutils/2016-01/msg00006.html [4] https://sourceware.org/ml/binutils/2016-02/msg00097.html [5] https://sourceware.org/ml/libc-alpha/2016-12/msg00853.html ld * emulparams/elf32bmip.sh: Add .MIPS.xhash section. * emulparams/elf32bmipn32-defs.sh: Add .MIPS.xhash section. * emulparams/elf64bmip-defs.sh: Add .MIPS.xhash section. * emultempl/mipself.em: Remove mips_after_parse function. * testsuite/ld-elf/hash.d: Update comment. * testsuite/ld-mips-elf/hash1.d: New test. * testsuite/ld-mips-elf/hash1.s: Ditto. * testsuite/ld-mips-elf/hash1a.d: Remove. * testsuite/ld-mips-elf/hash1b.d: Ditto. * testsuite/ld-mips-elf/hash1c.d: Ditto * testsuite/ld-mips-elf/hash2.d: New test. * testsuite/ld-mips-elf/mips-elf.exp: New tests. * testsuite/ld-mips-elf/start.s: New test. bfd * elf-bfd.h (struct elf_backend_data): New members. * elflink.c (_bfd_elf_link_create_dynamic_sections): Create .gnu.hash section if necessary. (struct collect_gnu_hash_codes): New member. (elf_gnu_hash_process_symidx): New function name. (elf_renumber_gnu_hash_syms): Ignore local and undefined symbols. Record xlat location for every symbol which should have a .MIPS.xhash entry. (bfd_elf_size_dynamic_sections): Add DT_GNU_HASH dynamic tag to dynamic section if necessary. (GNU_HASH_SECTION_NAME): New define. (bfd_elf_size_dynsym_hash_dynstr): Get .MIPS.xhash section. Update the section size info. * elfxx-mips.c (struct mips_elf_hash_sort_data): New members. (struct mips_elf_link_hash_entry): New member. (mips_elf_link_hash_newfunc): Initialize .MIPS.xhash translation table location. (mips_elf_sort_hash_table): Initialize the pointer to the .MIPS.xhash section. (mips_elf_sort_hash_table_f): Populate the .MIPS.xhash translation table entry with the symbol dynindx. (_bfd_mips_elf_section_from_shdr): Add SHT_MIPS_XHASH. (_bfd_mips_elf_fake_sections): Initialize .MIPS.xhash section info. (_bfd_mips_elf_create_dynamic_sections): Create .MIPS.xhash section. (_bfd_mips_elf_size_dynamic_sections): Add DT_MIPS_XHASH tag to dynamic section. (_bfd_mips_elf_finish_synamic_sections): Add DT_MIPS_XHASH. (_bfd_mips_elf_final_write_processing): Set .MIPS.xhash section sh_link info. (_bfd_mips_elf_get_target_dtag): Get DT_MIPS_XHASH tag. (MIPS_LIBC_ABI_XHASH): New ABI version enum value. (_bfd_mips_post_process_headers): Mark the ABI version as MIPS_LIBC_ABI_XHASH if there exists a .MIPS.xhash section, but not a .hash section. (_bfd_mips_elf_record_xhash_symbol): New function. Record a position in the translation table, associated with the hash entry. * elfxx-mips.h (literal_reloc_p): Define elf_backend_record_xhash_symbol backend hook. * elfxx-target.h: Initialize elf_backend_record_xhash_symbol backend hook. include * elf/mips.h (SHT_GNU_XHASH): New define. (DT_GNU_XHASH): New define. binutils * readelf.c (get_mips_dynamic_type): Return MIPS_XHASH dynamic type. (get_mips_section_type_name): Return MI{S_XHASH name string. (dynamic_section_mips_val): Initialize the .MIPS.xhash dynamic info. (process_symbol_table): Initialize the .MIPS.xhash section pointer. Adjust the readelf output to support the new section. (process_object): Set the .MIPS.xhash dynamic info to zero.
2019-08-07bfd: use the ELF linker to perform relocations in BPF targetsJose E. Marchesi1-0/+6
This patch changes the eBPF linker to provide a relocate_section function instead of relying on using special functions in relocation howtos. Tested in x86_64 host. No regressions. bfd/ChangeLog: 2019-08-07 Jose E. Marchesi <jose.marchesi@oracle.com> * elf64-bpf.c (bpf_elf_relocate_section): New function. (bpf_elf_insn_disp_reloc): Delete function. (elf_backend_relocate_section): Define.
2019-08-07PR24644, OOM-Bug in _bfd_archive_64_bit_slurp_armapAlan Modra1-0/+6
PR 24644 * archive64.c (_bfd_archive_64_bit_slurp_armap): Properly check for overflow in expressions involving nsymz.
2019-08-01RISC-V: Fix lui relax failure with relro.Jim Wilson1-0/+5
bfd/ChangeLog Ilia Diachkov <ilia.diachkov@optimitech.com> * elfnn-riscv.c (_bfd_riscv_relax_lui): Set lui relax safety area to two pages in relro presence.
2019-08-01xtensa: bfd: add special case to loop alignment checkMax Filippov1-0/+7
check_loop_aligned is used during link time relaxation to only allow transformations that don't violate loop body alignment requirements. Assembler can relax loops that have too long body by adding instructions between the loop instruction and the loop body. check_loop_aligned must check alignment of the first instruction of the actual loop body. Detect loop / rsr.lend / wsr.lbeg sequence used in assembly time relaxation and adjust alignment check when it's detected. bfd/ 2019-08-01 Max Filippov <jcmvbkbc@gmail.com> * elf32-xtensa.c (insn_num_slots, get_rsr_lend_opcode) (get_wsr_lbeg_opcode): New functions. (check_loop_aligned): Detect relaxed loops and adjust loop_len and insn_len for the first actual instruction of the loop.
2019-07-30Re: Support .gnu.lto_.lto section in ELF filesAlan Modra1-0/+6
PR 24768 * bfd.c (struct bfd): Add lto_slim_object flag. * bfd-in2.h: Regenerate.
2019-07-29Support .gnu.lto_.lto section in ELF files (PR 24768).Martin Liska1-0/+12
bfd/ChangeLog: 2019-07-22 Martin Liska <mliska@suse.cz> PR 24768 * archive.c (_bfd_compute_and_write_armap): Come up with report_plugin_err variable. * bfd-in2.h (struct bfd): Add lto_slim_object flag. * elf.c (struct lto_section): New. (_bfd_elf_make_section_from_shdr): Parse content of .gnu_lto_.lto section. * elflink.c: Report error for a missing LTO plugin. * linker.c (_bfd_generic_link_add_one_symbol): Likewise. binutils/ChangeLog: 2019-07-22 Martin Liska <mliska@suse.cz> PR 24768 * nm.c (filter_symbols): Set report_plugin_err if error is reported. (display_rel_file): Report error for a missing LTO plugin. gold/ChangeLog: 2019-07-22 Martin Liska <mliska@suse.cz> PR 24768 * layout.h (class Layout): Add is_lto_slim_object and set_lto_slim_object. * object.cc (struct lto_section): Add lto_slim_object_. (big_endian>::do_layout): Parse content of .gnu_lto_.lto section. (big_endian>::do_add_symbols): Report error for a missing LTO plugin.
2019-07-28PR24857, ld: error adding symbols: bad valueAlan Modra1-0/+9
This fixes two cases where elf_link_add_object_symbols returns an error, setting the catch-all bfd_error_bad_value without explaining the error. The second one is an internal error that can only be caused by a target elf_add_symbol_hook, so make that one abort. The first one is my PR24339 fix. PR24339 is another of those fuzzing bugs and the fix I made catches the problem when loading symbols, rather than when symbols are used in relocs. While ld is correct to reject the object file as not complying with the ELF standard, let's be a little more forgiving for dynamic objects. PR 24857 PR 24339 * elflink.c (elf_link_add_object_symbols): Report an informative error on finding local symbols with index equal or greater than symbol table sh_info. Correct comment. Allow such symbols in dynamic objects. Abort on NULL section for symbol.
2019-07-26Begone elf_linkerAlan Modra1-0/+6
This field effectively became usused a long time ago, perhaps as early as 1994. * elf-bfd.h (struct output_elf_obj_tdata): Delete "linker" field. (elf_linker): Don't define. * elflink.c (bfd_elf_final_link): Don't set elf_linker.
2019-07-25When linking binary files into MIPS executables, default to MIPS 3 ↵YunQiang Su1-0/+6
emaulation for 64-bit objects. PR 24832 * elfxx-mips.c (mips_set_isa_flags): Default to MIPS 3 for 64-bit mips inputs.
2019-07-24[ARC] [COMMITTED] Fix formatting.Claudiu Zissulescu1-0/+9
Small formatting fixes. 2019-07-24 Claudiu Zissulescu <claziss@synopsys.com> * elf32-arc.c (bfd_get_32_me): Add a small description, fix formatting. (reloc_type_to_name): Fix formatting. (arc_elf_object_p): Likewise. (debug_arc_reloc): Likewise. (arc_do_relocation): Likewise.
2019-07-24[ARC] Add linker relaxation.Claudiu Zissulescu1-0/+7
Add linker relaxation. The first relaxation added is converting GOTPC32 to PCREL relocations. This relaxation doesn't change the size of the binary. bfd/ xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com> * elf32-arc.c (bfd_get_32_me): New function. (bfd_put_32_me): Likewise. (arc_elf_relax_section): Likewise. (bfd_elf32_bfd_relax_section): Define. ld/testsuite/ xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com> * ld-arc/relax-local-pic.d: New test. * ld-arc/relax-local-pic.s: New file.
2019-07-24Complain about mbind, ifunc, and unique in final_writeAlan Modra1-0/+49
It's not as good as complaining in gas/config/obj-elf.c since you lose any reference to the source file. bfd/ * elf-bfd.h (struct elf_backend_data): Return bfd_boolean from elf_backend_final_write_processing, don't pass linker arg. (_bfd_elf_final_write_processing): Update prototype. * elf.c (_bfd_elf_write_object_contents): Adjust call. (_bfd_elf_final_write_processing): Return error on incompatible OSABI and has_gnu_osabi. Remove linker arg. * elf-nacl.h (nacl_final_write_processing): Update prototype. * elf-vxworks.h (elf_vxworks_final_write_processing): Likewise. * elfxx-mips.h (_bfd_mips_final_write_processing): Likewise. (_bfd_mips_elf_final_write_processing): Likewise. * elf-hppa.h (elf_hppa_final_write_processing): Return status and remove linker arg. * elf-m10300.c (_bfd_mn10300_elf_final_write_processing): Likewise. * elf-nacl.c (nacl_final_write_processing): Likewise. * elf-vxworks.c (elf_vxworks_final_write_processing): Likewise. * elf32-arc.c (arc_elf_final_write_processing): Likewise. * elf32-arm.c (arm_final_write_processing): Likewise. (elf32_arm_final_write_processing): Likewise. (elf32_arm_nacl_final_write_processing): Likewise. (elf32_arm_vxworks_final_write_processing): Likewise. * elf32-avr.c (bfd_elf_avr_final_write_processing): Likewise. * elf32-bfin.c (elf32_bfin_final_write_processing): Likewise. * elf32-cr16.c (_bfd_cr16_elf_final_write_processing): Likewise. * elf32-cris.c (cris_elf_final_write_processing): Likewise. * elf32-h8300.c (elf32_h8_final_write_processing): Likewise. * elf32-lm32.c (lm32_elf_final_write_processing): Likewise. * elf32-m32r.c (m32r_elf_final_write_processing): Likewise. * elf32-m68k.c (elf_m68k_final_write_processing): Likewise. * elf32-mips.c (mips_vxworks_final_write_processing): Likewise. * elf32-msp430.c (bfd_elf_msp430_final_write_processing): Likewise. * elf32-nds32.c (nds32_elf_final_write_processing): Likewise. * elf32-or1k.c (or1k_elf_final_write_processing): Likewise. * elf32-pj.c (pj_elf_final_write_processing): Likewise. * elf32-ppc.c (ppc_final_write_processing): Likewise. (ppc_elf_final_write_processing): Likewise. (ppc_elf_vxworks_final_write_processing): Likewise. * elf32-sparc.c (sparc_final_write_processing): Likewise. (elf32_sparc_final_write_processing): Likewise. (elf32_sparc_vxworks_final_write_processing): Likewise. * elf32-v850.c (v850_elf_final_write_processing): Likewise. * elf32-xc16x.c (elf32_xc16x_final_write_processing): Likewise. * elf32-xtensa.c (elf_xtensa_final_write_processing): Likewise. * elf64-ia64-vms.c (elf64_vms_final_write_processing): Likewise. * elfnn-ia64.c (elfNN_ia64_final_write_processing): Likewise. * elfxx-mips.c (_bfd_mips_final_write_processing): Likewise. (_bfd_mips_elf_final_write_processing): Likewise. gas/ * config/obj-elf.c (obj_elf_section, obj_elf_type): Set has_gnu_osabi. * testsuite/gas/elf/section12a.d: Update xfails. * testsuite/gas/elf/section12b.d: Likewise.
2019-07-24Re: ELF final_write_processingAlan Modra1-0/+7
I missed some early exits from final_write_processing that mean _bfd_elf_final_write_processing could be missed. * elf-vxworks.c (elf_vxworks_final_write_processing): Don't return early. * elf32-arc.c (arc_elf_final_write_processing): Likewise. * elf32-xtensa.c (elf_xtensa_final_write_processing): Likewise.
2019-07-24Define ELF_OSABI for visiumAlan Modra1-0/+6
and update expected results for gas mbind tests. bfd/ * elf32-visium.c (visium_elf_post_process_headers): Don't set EI_OSABI header byte here. (ELF_OSABI): Define. gas/ * testsuite/gas/elf/section12a.d: xfail visium and cloudabi. * testsuite/gas/elf/section12b.d: Likewise. * testsuite/gas/elf/section13.d: Likewise.
2019-07-23SHF_GNU_MBIND requires ELFOSABI_GNUAlan Modra1-0/+12
When SHF_GNU_MBIND was added in the SHF_LOOS to SHF_HIOS range, it should have required ELFOSABI_GNU since these flags are already in use by other OSes. HPUX SHF_HP_TLS in fact has the same value. That means no place in binutils should test SHF_GNU_MBIND without first checking OSABI, and SHF_GNU_MBIND should not be set without also setting OSABI. At least, that's the ideal, but the patch accepts SHF_GNU_MBIND on ELFOSABI_NONE object files since gas didn't always set OSABI. However, to reinforce the fact that SHF_GNU_MBIND isn't proper without a non-zero OSABI, readelf will display the flag as LOOS+0 if OSABI isn't set. The clash with SHF_HP_TLS means that hppa64-linux either has that flag on .tbss sections or supports GNU_MBIND, not both. (hppa64-linux users, if there are any, may have noticed that GNU ld since 2017 mysteriously aligned their .tbss sections to a 4k boundary. That was one consequence of SHF_HP_TLS being blindly interpreted as SHF_GNU_MBIND.) Since it seems that binutils, gdb, gcc, glibc, and the linux kernel don't care about SHF_HP_TLS I took that flag out of .tbss for hppa64-linux. bfd/ * elf-bfd.h (enum elf_gnu_osabi): Add elf_gnu_osabi_mbind. * elf.c (_bfd_elf_make_section_from_shdr): Set elf_gnu_osabi_mbind. (get_program_header_size): Formatting. Only test SH_GNU_MBIND when elf_gnu_osabi_mbind is set. (_bfd_elf_map_sections_to_segments): Likewise. (_bfd_elf_init_private_section_data): Likewise. (_bfd_elf_final_write_processing): Update comment. * elf64-hppa.c (elf64_hppa_special_sections): Move .tbss entry. (elf_backend_special_sections): Define without .tbss for linux. binutils/ * readelf.c (get_parisc_segment_type): Split off hpux entries.. (get_ia64_segment_type): ..and these.. (get_hpux_segment_type): ..to here. (get_segment_type): Condition GNU_MBIND on osabi. Use get_hpux_segment_type. (get_symbol_binding): Do not print UNIQUE for ELFOSABI_NONE. (get_symbol_type): Do not print IFUNC for ELFOSABI_NONE. gas/ * config/obj-elf.c (obj_elf_change_section): Don't emit a fatal error for non-SHF_ALLOC SHF_GNU_MBIND here. (obj_elf_parse_section_letters): Return SHF_GNU_MBIND in new gnu_attr param. (obj_elf_section): Adjust obj_elf_parse_section_letters call. Formatting. Set SHF_GNU_MBIND and elf_osabi from gnu_attr. Emit normal error for non-SHF_ALLOC SHF_GNU_MBIND and wrong osabi. (obj_elf_type): Set elf_osabi for ifunc. * testsuite/gas/elf/section12a.d: xfail msp430 and hpux. * testsuite/gas/elf/section12b.d: Likewise. * testsuite/gas/elf/section13.d: Likewise. * testsuite/gas/elf/section13.l: Adjust expected error. ld/ * emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Condition SHF_GNU_MBIND on osabi. Set output elf_gnu_osabi_mbind.
2019-07-23ELF final_write_processingAlan Modra1-0/+64
Move setting of OSABI to final_write_processing, after symbols are written. This allows OSABI to be set based on symbols actually written to the output rather than assuming input symbols will be output. Corrects object files such as the one generated on powerpc64le-linux by ld-powerpc/pr23927.s which has a local STT_GNU_IFUNC symbol but prior to this patch the file was marked ELFOSABI_NONE. * elf-bfd.h (enum elf_gnu_osabi): Rename from elf_gnu_symbols. Remove none, any, all enums. (struct elf_obj_tdata): Rename has_gnu_symbols field to has_gnu_osabi. (_bfd_elf_final_write_processing): Declare. * elf.c (_bfd_elf_write_object_contents): Unconditionally call elf_backend_final_write_processing. (_bfd_elf_post_process_headers): Move body of function to.. (_bfd_elf_final_write_processing): ..here, but set EI_OSABI byte only when not already set. Adjust for rename. * elfxx-target.h (elf_backend_final_write_processing): Default to _bfd_elf_final_write_processing. * elf-hppa.h (elf_hppa_final_write_processing): Call _bfd_elf_final_write_processing. * elf-m10300.c (_bfd_mn10300_elf_final_write_processing): Likewise. * elf-nacl.c (nacl_final_write_processing): Likewise. * elf-vxworks.c (elf_vxworks_final_write_processing): Likewise. * elf32-arc.c (arc_elf_final_write_processing): Likewise. * elf32-avr.c (bfd_elf_avr_final_write_processing): Likewise. * elf32-bfin.c (elf32_bfin_final_write_processing): Likewise. * elf32-cr16.c (_bfd_cr16_elf_final_write_processing): Likewise. * elf32-cris.c (cris_elf_final_write_processing): Likewise. * elf32-h8300.c (elf32_h8_final_write_processing): Likewise. * elf32-lm32.c (lm32_elf_final_write_processing): Likewise. * elf32-m32r.c (m32r_elf_final_write_processing): Likewise. * elf32-m68k.c (elf_m68k_final_write_processing): Likewise. * elf32-msp430.c (bfd_elf_msp430_final_write_processing): Likewise. * elf32-nds32.c (nds32_elf_final_write_processing): Likewise. * elf32-or1k.c (or1k_elf_final_write_processing): Likewise. * elf32-pj.c (pj_elf_final_write_processing): Likewise. * elf32-v850.c (v850_elf_final_write_processing): Likewise. * elf32-xc16x.c (elf32_xc16x_final_write_processing): Likewise. * elf32-xtensa.c (elf_xtensa_final_write_processing): Likewise. * elf64-ia64-vms.c (elf64_vms_final_write_processing): Likewise. * elfnn-ia64.c (elfNN_ia64_final_write_processing): Likewise. * elf32-arm.c (arm_final_write_processing): Split out from.. (elf32_arm_final_write_processing): ..here. Call _bfd_elf_final_write_processing. (elf32_arm_nacl_final_write_processing): Adjust. * elfxx-mips.c (_bfd_mips_final_write_processing): Split out from.. (_bfd_mips_elf_final_write_processing): ..here. Call _bfd_elf_final_write_processing. * elfxx-mips.h (_bfd_mips_final_write_processing): Declare. * elf32-mips.c (mips_vxworks_final_write_processing): Adjust. * elf32-ppc.c (ppc_final_write_processing): Split out from.. (ppc_elf_final_write_processing): ..here. Call _bfd_elf_final_write_processing. (ppc_elf_vxworks_final_write_processing): Adjust. * elf32-sparc.c (sparc_final_write_processing): Split out from.. (elf32_sparc_final_write_processing): ..here. Call _bfd_elf_final_write_processing. (elf32_sparc_vxworks_final_write_processing): Adjust. * elf32-d10v.c (elf_backend_final_write_processing): Don't define. * elf32-d30v.c (elf_backend_final_write_processing): Don't define. * elf32-m68hc11.c (elf_backend_final_write_processing): Don't define. * elf32-m68hc12.c (elf_backend_final_write_processing): Don't define. * elf32-s12z.c (elf_backend_final_write_processing): Don't define. * elf32-i386.c (elf_i386_check_relocs): Don't set has_gnu_symbols. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (elf_link_add_object_symbols): Likewise. (elf_link_output_symstrtab): Set has_gnu_osabi for symbols here instead.
2019-07-23Allow objdump to recognise the System.Runtime.dll files that get shipped ↵Omar Majid1-0/+8
with .NET Core 2.1. include * coff/i386.h (IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE): Define. (IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE): Define. (IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE): Define. (IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE): Define. (I386_APPLE_MAGIC): Define. (I386_FREEBSD_MAGIC): Define. (I386_LINUX_MAGIC): Define. (I386_NETBSD_MAGIC): Define. (I386BADMAG): Extend macro to allow new magic numbers. * coff/x86_64.h (IMAGE_FILE_MACHINE_NATIVE_APPLE_OVERRIDE): Define. (IMAGE_FILE_MACHINE_NATIVE_FREEBSD_OVERRIDE): Define. (IMAGE_FILE_MACHINE_NATIVE_LINUX_OVERRIDE): Define. (IMAGE_FILE_MACHINE_NATIVE_NETBSD_OVERRIDE): Define. (AMD64_APPLE_MAGIC): Define. (AMD64_FREEBSD_MAGIC): Define. (AMD64_LINUX_MAGIC): Define. (AMD64_NETBSD_MAGIC): Define. (AMD64BADMAG): Extend macro to allow new magic numbers. bfd * coffcode.h (coff_set_arch_mach_hook): Handle I386_APPLE_MAGIC, I386_FREEBSD_MAGIC, I386_LINUX_MAGIC, I386_NETBSD_MAGIC, AMD64_APPLE_MAGIC, AMD64_FREEBSD_MAGIC, AMD64_LINUX_MAGIC, AMD64_NETBSD_MAGIC. * peXXigen.c: Add comment about source of .NET magic numbers. binutils* Makefile.am (AUTOMAKE_OPTIONS): Add subdir-objects (GENTESTDLLSPROG): Define. (TEST_PROGS): Add GENTESTDLLSPROG. * Makefile.in: Regenerate. * testsuite/binutils-all/objdump.exp (test_objdump_dotnet_assemblies): New proc. Run the new proc. * testsuite/gentestdlls.c: New source file.
2019-07-19[PowerPC64] pc-relative TLS relocationsAlan Modra1-0/+14
This patch supports using pcrel instructions in TLS code sequences. A number of new relocations are needed, gas operand modifiers to generate those relocations, and new TLS optimisation. For optimisation it turns out that the new pcrel GD and LD sequences can be distinguished from the non-pcrel GD and LD sequences by there being different relocations on the new sequence. The final "add ra,rb,13" on IE sequences similarly needs a new relocation, or as I chose, a modification of R_PPC64_TLS. On pcrel IE code, the R_PPC64_TLS points one byte into the "add" instruction rather than being on the instruction boundary. GD: pla 3,z@got@tlsgd@pcrel # R_PPC64_GOT_TLSGD34 bl __tls_get_addr@notoc(z@tlsgd) # R_PPC64_TLSGD and R_PPC64_REL24_NOTOC edited to IE pld 3,z@got@tprel@pcrel add 3,3,13 edited to LE paddi 3,13,z@tprel nop LD: pla 3,z@got@tlsld@pcrel # R_PPC64_GOT_TLSLD34 bl __tls_get_addr@notoc(z@tlsld) # R_PPC64_TLSLD and R_PPC64_REL24_NOTOC .. paddi 9,3,z2@dtprel pld 10,z3@got@dtprel@pcrel add 10,10,3 edited to LE paddi 3,13,0x1000 nop IE: pld 9,z@got@tprel@pcrel # R_PPC64_GOT_TPREL34 add 3,9,z@tls@pcrel # R_PPC64_TLS at insn+1 ldx 4,9,z@tls@pcrel lwax 5,9,z@tls@pcrel stdx 5,9,z@tls@pcrel edited to LE paddi 9,13,z@tprel nop ld 4,0(9) lwa 5,0(9) std 5,0(9) LE: paddi 10,13,z@tprel include/ * elf/ppc64.h (R_PPC64_TPREL34, R_PPC64_DTPREL34), (R_PPC64_GOT_TLSGD34, R_PPC64_GOT_TLSLD34), (R_PPC64_GOT_TPREL34, R_PPC64_GOT_DTPREL34): Define. (IS_PPC64_TLS_RELOC): Include new tls relocs. bfd/ * reloc.c (BFD_RELOC_PPC64_TPREL34, BFD_RELOC_PPC64_DTPREL34), (BFD_RELOC_PPC64_GOT_TLSGD34, BFD_RELOC_PPC64_GOT_TLSLD34), (BFD_RELOC_PPC64_GOT_TPREL34, BFD_RELOC_PPC64_GOT_DTPREL34), (BFD_RELOC_PPC64_TLS_PCREL): New pcrel tls relocs. * elf64-ppc.c (ppc64_elf_howto_raw): Add howtos for pcrel tls relocs. (ppc64_elf_reloc_type_lookup): Translate pcrel tls relocs. (must_be_dyn_reloc, dec_dynrel_count): Add R_PPC64_TPREL64. (ppc64_elf_check_relocs): Support pcrel tls relocs. (ppc64_elf_tls_optimize, ppc64_elf_relocate_section): Likewise. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. gas/ * config/tc-ppc.c (ppc_elf_suffix): Map "tls@pcrel", "got@tlsgd@pcrel", "got@tlsld@pcrel", "got@tprel@pcrel", and "got@dtprel@pcrel". (fixup_size, md_assemble): Handle pcrel tls relocs. (ppc_force_relocation, ppc_fix_adjustable): Likewise. (md_apply_fix, tc_gen_reloc): Likewise. ld/ * testsuite/ld-powerpc/tlsgd.d, * testsuite/ld-powerpc/tlsgd.s, * testsuite/ld-powerpc/tlsie.d, * testsuite/ld-powerpc/tlsie.s, * testsuite/ld-powerpc/tlsld.d, * testsuite/ld-powerpc/tlsld.s: New tests. * testsuite/ld-powerpc/powerpc.exp: Run them.
2019-07-18[PowerPC64] Use STN_UNDEF internally for edited relocsAlan Modra1-0/+6
It's not correct to use non-STT_TLS symbols with TLS relocation, not that it matters much when editing relocs, but this edited reloc can be output by --emit-relocs. So don't use a symbol on the reloc. * elf64-ppc.c (ppc64_elf_relocate_section): Don't bother selecting a TLS section symbol for edited relocs. Tighten TLS symbol/reloc match test.
2019-07-18[PowerPC64] Don't store TLS_EXPLICIT in tls_maskAlan Modra1-0/+10
This saves a bit in tls_mask, and fixes a bug that could be triggered in the unlikely case that both @got (usual ELF style) and @toc (PowerOpen style) code was used to set up args for __tls_get_addr. * elf64-ppc.c (TLS_EXPLICIT): Define as 256. (ppc64_elf_check_relocs): Don't store TLS_EXPLICIT even if char is more than 8 bits. (ppc64_elf_tls_optimize): Likewise. Make tls_set, tls_clear, and tls_type vars unsigned int. (ppc64_elf_relocate_section): Use r_type rather than TLS_EXPLICIT to select r_type edit.
2019-07-18[PowerPC] Rename TLS_TPRELGD to TLS_GDIEAlan Modra1-0/+6
Choose a better name, that reflects why the flag is set (GD to IE optimisation) rather than what the flag produces (TPREL64 reloc on a single GOT entry replacing a tls_index pair). * elf32-ppc.c (TLS_GDIE): Rename from TLS_TPRELGD throughout file. Correct comment. * elf64-ppc.c (TLS_GDIE): Likewise.
2019-07-18[PowerPC64] correct tprel offset limitAlan Modra1-0/+5
I don't expect anyone will have hit this bug. You'd need a TLS segment of 2G before you'd notice. * elf64-ppc.c (ppc64_elf_tls_optimize): Correct test for allowed range of tp-relative offsets.
2019-07-15Fix __bss_start assertion failure in _bfd_elf_fix_symbol_flagsAlan Modra1-0/+5
> Building LLVM 6.0 on FreeBSD/powerpc (devel/llvm60 port) the assertion > in the subject trips (displays twice) when linking libLTO.so.1. The > issue has been filed in FreeBSD's bugzilla, at > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=237068 . It appears > the 'llvm::hashing::detail::get_execution_seed()::seed@@JL_LLVM_6.0' > symbol is being weakly aliased to an indirect symbol > __bss_start@@JL_LLVM_6.0. Since __bss_start@@JL_LLVM_6.0 is an > indirect symbol, it fails the assertion. I haven't looked under a debugger at your testcase but I think I know what is going on here. You have a shared library with a weakly defined llvm::hashing::detail::get_execution_seed()::seed which happens to be at the same location as __bss_start in that library. At the time the linker loads symbols for that library, it sees they are both versioned and thus introduces non-versioned indirect symbols for them. The linker considers the symbols as possibly being aliases, setting up h->u.alias and h->is_weakalias such that __bss_start@@JL_LLVM_6.0 is the definition. No real problem so far, the definition is bfd_link_hash_defined, except that the zero size, no type __bss_start symbol possibly should not be considered an alias in the first place. Later, __bss_start as defined by the linker script is entered into the linker symbol table. This is similar to __bss_start being defined by a regular object file in that ELF symbol resolution rules say that the value of __bss_start in the library is overridden by __bss_start in the executable/library being produced. So to accomplish the override, ld flips __bss_start from being an indirect symbol pointing at __bss_start@@JL_LLVM_6.0 to __bss_start@@JL_LLVM_6.0 being an indirect symbol pointing at __bss_start. That's how we get an unexpected indirect symbol and hit the assert. What should happen I think, is for the def->def_regular code above the assert to run in this case. The symbols are no longer aliases. * elflink.c (_bfd_elf_fix_symbol_flags): If the def for an alias is no longer bfd_link_hash_defined, clear the alias.
2019-07-13Dynamic TLS section symbolsAlan Modra1-0/+12
It is possible to create shared libraries on PowerPC using -ftls-model=inital-exec or -ftls-model=local-exec. The first is half reasonable, getting you a shared library that can't be dlopen'd but otherwise is reasonable. The second is quite bad. Not only do you lose being able to dlopen, the library also has dynamic text relocations. Worse, the TPREL16_LO, TPREL16_HA and other TPREL16 dynamic relocs emitted were wrong, resulting in wrong values being applied by ld.so. Using the first TLS section symbol in dynamic relocations for local TLS symbols doesn't work. It's wrong because TLS symbols used by TLS relocs have values relative to the TLS segment, whereas the TLS section symbols are addresses. This patch instead uses a symbol index of zero which is used elsewhere by PowerPC on dynamic TLS relocs. It's not strictly ABI compliant to use a non-TLS symbol with TLS relocs but symbol index zero can be interpreted as "no symbol". Not using the first TLS section symbol means it doesn't need to be dynamic. The patch also fixes a further problem with PowerPC32 dynamic TPREL16* relocs, which shouldn't have the symbol value in the addend as we do for non-TLS symbols. bfd/ * elflink.c (_bfd_elf_omit_section_dynsym_default): Don't keep tls_sec. (_bfd_elf_init_1_index_section): Prefer not using TLS sections. (_bfd_elf_init_2_index_sections): Likewise. * elf64-ppc.c (ppc64_elf_relocate_section): When emitting dynamic relocations for local TLS symbols, use STN_UNDEF as the relocation symbol. * elf32-ppc.c (ppc_elf_relocate_section): Likewise, and don't leave TLS symbol value in the addend. ld/ * testsuite/ld-powerpc/tlsso.r: Update. * testsuite/ld-powerpc/tlsso32.g: Update. * testsuite/ld-powerpc/tlsso32.r: Update. * testsuite/ld-powerpc/tlstocso.r: Update. * testsuite/ld-cris/tls-dso-dtpoffd2.d: Update. * testsuite/ld-cris/tls-dso-dtpoffd4.d: Update. * testsuite/ld-cris/tls-dso-tpoffgotcomm1.d: Update. * testsuite/ld-cris/tls-gd-1.d: Update. * testsuite/ld-cris/tls-gd-1h.d: Update. * testsuite/ld-cris/tls-gd-2.d: Update. * testsuite/ld-cris/tls-gd-2h.d: Update. * testsuite/ld-cris/tls-ie-10.d: Update. * testsuite/ld-cris/tls-ie-11.d: Update. * testsuite/ld-cris/tls-ie-8.d: Update. * testsuite/ld-cris/tls-ie-9.d: Update. * testsuite/ld-cris/tls-js1.d: Update. * testsuite/ld-cris/tls-ld-4.d: Update. * testsuite/ld-cris/tls-ld-5.d: Update. * testsuite/ld-cris/tls-ld-6.d: Update. * testsuite/ld-cris/tls-ld-7.d: Update. * testsuite/ld-cris/tls-ldgd-14.d: Update. * testsuite/ld-cris/tls-ldgd-15.d: Update. * testsuite/ld-cris/tls-ldgdx-14.d: Update. * testsuite/ld-cris/tls-ldgdx-15.d: Update. * testsuite/ld-cris/tls-local-54.d: Update. * testsuite/ld-cris/tls-local-60.d: Update. * testsuite/ld-cris/tls-local-61.d: Update. * testsuite/ld-cris/tls-local-63.d: Update. * testsuite/ld-cris/tls-local-64.d: Update. * testsuite/ld-cris/tls-ok-30.d: Update. * testsuite/ld-cris/tls-ok-32.d: Update. * testsuite/ld-cris/tls-ok-34.d: Update. * testsuite/ld-mips-elf/tls-multi-got-1.got: Update. * testsuite/ld-mips-elf/tls-multi-got-1.r: Update. * testsuite/ld-mips-elf/tlsdyn-pie-o32.d: Update. * testsuite/ld-mips-elf/tlsdyn-pie-o32.got: Update. * testsuite/ld-mips-elf/tlslib-o32-hidden.got: Update. * testsuite/ld-mips-elf/tlslib-o32-ver.got: Update. * testsuite/ld-mips-elf/tlslib-o32.got: Update. * testsuite/ld-s390/tlspic.rd: Update. * testsuite/ld-s390/tlspic_64.rd: Update. * testsuite/ld-sparc/tlssunnopic32.rd: Update. * testsuite/ld-sparc/tlssunnopic64.rd: Update. * testsuite/ld-sparc/tlssunpic32.rd: Update. * testsuite/ld-sparc/tlssunpic64.rd: Update.
2019-07-08PR24785, bfd crashes on empty .PPC.EMB.apuinfo sectionAlan Modra1-0/+6
PR 24785 * elf32-ppc.c (_bfd_elf_ppc_set_arch): Sanity check .PPC.EMB.apuinfo size before reading first word.
2019-07-02Stop the BFD library from issuing a warning message when processing ↵Nick Clifton1-0/+9
allocated sections in debuginfo files that lie outside of any loadable segment. PR 24717 * elf.c (is_debuginfo_file): New function. (assign_file_positions_for_non_load_sections): Do not warn about allocated sections outside of loadable segments if they are found in a debuginfo file. * elf-bfd.h (is_debuginfo_file): Prototype.
2019-07-02Fix a bug recently introduced to the linker where it would complain about a ↵Nick Clifton1-0/+6
section being larger than a file, even if the section was artificial. PR 24753 bfd * compress.c (bfd_get_full_section_contents): Do not complain about linker created sections that are larger than the file size. ld * emultempl/aarch64elf.em (_aarch64_add_stub_section): Include the LINKER_CREATED section flag when creating the stub section.
2019-07-02PR ld/24709 [arm] linker crash and assertion failure with CMSEChristophe Lyon1-0/+7
As discussed in the PR, we do not support the case where CMSE stubs are inserted too far from their destination. This would require an intermediate long-branch stub, which is tricky in this context. Instead of crashing, this patch emit an error message and exits. 2019-07-02 Christophe Lyon <christophe.lyon@linaro.org> * bfd/elf32-arm.c (CMSE_STUB_NAME): New define. (elf32_arm_get_stub_entry): Do not try to emit long-branch stubs for CMSE stubs. (arm_dedicated_stub_output_section_name): Use CMSE_STUB_NAME. Change-Id: I6d4e1c0fdee6bb9f4b07e5e1b46700b5ba31c62e
2019-07-02Ensure that debug information is retained for ARMv8-M security functions.Srinath Parvathaneni1-0/+6
Consider a file containing only Armv8-M secure entry functions. This file is compiled and linked with "-march=armv8-m.main -mfloat-abi=hard -mfpu=fpv5-sp-d16 -mcmse -static --specs=rdimon.specs -Wl,--section-start,.gnu.sgstubs=0x190000 -ffunction-sections -fdata-sections -Wl,--gc-sections -g" options to generate an executable. The executable generated does not contain any debug information of these secure entry functions even though it contains secure entry functions in the .text section. This patch fixes this problem.
2019-07-01Correct the calculation of offsets for ARM exidx relocs when performing a ↵Nick Clifton1-0/+6
partial link. PR 23839 bfd * elf32-arm.c (elf32_arm_update_relocs): Do not include the section VMA in the offset used to update exidx relocs. ld * testsuite/ld-arm/unwind-4.d: Adjust for corrected calculation of exidx relocs.
2019-06-28Prevent attempts to allocate excessive amounts of memory when parsing ↵Nick Clifton1-0/+8
corrupt ELF files. PR 24708 * elf.c (_bfd_elf_slurp_version_tables): Check for an excessively large version reference section. * compress.c (bfd_get_full_section_contents): Check for an uncompressed section whose size is larger than the file size.
2019-06-28Plugin target handlingAlan Modra1-0/+11
This patch fixes failures with LTO on mingw32 targets. Since git commit 7cf7fcc83c all possible targets (minus binary) are matched in bfd_check_format_matches rather than lower priority targets being excluded once a higher priority target matches. During linking that results in the ld/plugin.c plugin_object_p function being called with the input file xvec set to plugin_vec, which means plugin_get_ir_dummy_bfd doesn't see the real format of the file (pe-i386). It defaults to the output format instead, which happens to be pei-i386, and this wrong choice persists for the dummy bfd. pei-i386 isn't recognised as a valid linker input file. So, omit recognizing a plugin object in bfd_check_format_matches when some other object format matches, and make sure those other object formats are checked first. * format.c (bfd_check_format_matches): Don't match plugin target if another target matches. Expand comment. * targets.c (_bfd_target_vector): Move plugin_vec after all other non-corefile targets, outside !SELECT_VECS. * config.bfd: Don't handle targ=plugin here. * configure.ac: Don't add plugin to enable_targets or handle in target loop setting selvecs and other target vars. * configure: Regenerate.
2019-06-26Ensure that when attempting to process an ARM Mach-O file with unknown ↵Nick Clifton1-0/+8
relocs, that a suitable error message is displayed. PR 24703 binutils* bucomm.c (bfd_nonfatal): If no bfd error code has been set then indicate this in the output. (bfd_nonfatal_message): Likewise. bfd * mach-o-arm.c (bfd_mach_o_arm_canonicalize_one_reloc): Add error messages for failures. * mach-o.c (bfd_mach_o_canonicalize_relocs): Set an bfd error code if returning an error value.
2019-06-25bfd/elf-properties: avoid shadowing a C library symbolJan Beulich1-0/+5
With my (oldish) gcc/glibc combination I'm seeing .../bfd/elf-properties.c: In function ‘elf_find_and_remove_property’: .../bfd/elf-properties.c:244: error: declaration of ‘remove’ shadows a global declaration /usr/include/stdio.h:157: error: shadowed declaration is here
2019-06-24RISC-V: Enable lui relaxation for CODE and MERGE sections.Jim Wilson1-0/+9
2019-06-24 Ilia Diachkov <ilia.diachkov@optimitech.com> bfd/ * elfnn-riscv.c (_bfd_riscv_relax_lui): Delete early exit when SEC_MERGE or SEC_CODE flags are set. (_bfd_riscv_relax_section): New local symtype. Set sym_sec and symtype consistently. Don't include sec_addr (sym_sec) in symval. Add check for SEC_INFO_TYPE_MERGE and call _bfd_merged_section_offset. Add sec_addr (sym_sec) after handling merge sections.
2019-06-24elf: Remove the property after reporting its removalH.J. Lu1-0/+6
commit d2ef37ebd9f771d06edf1fdea37970f60b242b2d Author: H.J. Lu <hjl.tools@gmail.com> Date: Fri Dec 7 08:30:30 2018 -0800 elf: Report property change when merging properties failed to remove the property after reporting it has been removed. This patch corrects it. bfd/ PR ld/24721 * elf-properties.c (elf_merge_gnu_property_list): Remove the property after reporting property removal. ld/ PR ld/24721 * testsuite/ld-x86-64/x86-64.exp: Run PR ld/24721 tests. * testsuite/ld-x86-64/pr24721-x32.d: New file. * testsuite/ld-x86-64/pr24721.d: Likewise. * testsuite/ld-x86-64/pr24721.map: Likewise. * testsuite/ld-x86-64/pr24721a.s: Likewise. * testsuite/ld-x86-64/pr24721b.s: Likewise.
2019-06-23PR24704, Internal error building skiboot for powerpc64-linux-gnuAlan Modra1-0/+7
While the skiboot linker script bears some culpability in this PR, it's also true that the GOT indirect to GOT relative optimisation for 16-bit offsets isn't safe. At least, it isn't safe to remove the GOT entry based on distance between the GOT pointer and symbol calculated from the preliminary layout. So this patch removes that optimisation, and reduces the range allowed for 32-bit and 34-bit offsets. PR 24704 bfd/ * elf64-ppc.c (R_PPC64_GOT16_DS): Don't set has_gotrel. (ppc64_elf_edit_toc): Don't remove R_PPC64_GOT16_DS got entries. Reduce range of offsets allowed for other GOT relocs. ld/ * testsuite/ld-powerpc/elfv2exe.d: Update. * testsuite/ld-powerpc/elfv2so.d: Update.
2019-06-23PR24689 again, string table corruptionAlan Modra1-0/+5
Depending on optimisation level and gcc version, git commit 890f750a3b introduces a false positive warning that i_shdrp may be used uninitialized. PR 24689 * elfcode.h (elf_object_p): Warning fix.
2019-06-21PR24689, string table corruptionAlan Modra1-0/+5
The testcase in the PR had a e_shstrndx section of type SHT_GROUP. hdr->contents were initialized by setup_group rather than being read from the file, thus last byte was not zero and string dereference ran off the end of the buffer. PR 24689 * elfcode.h (elf_object_p): Check type of e_shstrndx section.
2019-06-19PR24697, R_PPC_EMB_SDA21 relocationAlan Modra1-0/+6
PR 24697 * elf32-ppc.c (ppc_elf_relocate_section): Don't read insn for R_PPC_EMB_RELSDA. Mask low bit of R_PPC_EMB_SDA21 r_offset.
2019-06-19PowerPC64 notoc callsAlan Modra1-0/+6
Calls from functions that don't have a valid toc pointer in r2 (these calls are marked with _NOTOC relocs) to functions that require r2 valid must go via the callee global entry point. This patch corrects the condition the linker was using to detect functions that require r2 to be valid. Values of both zero and one in st_other local entry bits mean a function doesn't care about r2. * elf64-ppc.c (ppc64_elf_inline_plt): Correct st_other test for functions that require r2 valid to use local entry. (ppc64_elf_size_stubs, ppc64_elf_relocate_section): Likewise.
2019-06-17aarch64: remove unnecessary loc_hash_table traversalSzabolcs Nagy1-0/+6
The loc_hash_table should only contain local ifunc symbols. The current code already aborts if there is anything else and for defined ifunc symbols elfNN_aarch64_allocate_dynrelocs is a no-op. bfd/ChangeLog: * elfnn-aarch64.c (elfNN_aarch64_allocate_local_dynrelocs): Remove. (elfNN_aarch64_size_dynamic_sections): Remove loc_hash_table traversal with elfNN_aarch64_allocate_local_dynrelocs.
2019-06-14Add R_AARCH64_P32_MOVW_PREL_* ELF32 relocsSzabolcs Nagy1-0/+4
These ilp32 relocations were missing for some reason. bfd/ChangeLog: * elfnn-aarch64.c: Enable MOVW_PREL relocs for ELF32. include/ChangeLog: * elf/aarch64.h (R_AARCH64_P32_MOVW_PREL_G0): Define. (R_AARCH64_P32_MOVW_PREL_G0_NC): Define. (R_AARCH64_P32_MOVW_PREL_G1): Define. ld/ChangeLog: * testsuite/ld-aarch64/aarch64-elf.exp: Add emit-relocs-22 and -23. * testsuite/ld-aarch64/emit-relocs-22.d: New test. * testsuite/ld-aarch64/emit-relocs-22.s: New test. * testsuite/ld-aarch64/emit-relocs-23.d: New test. * testsuite/ld-aarch64/emit-relocs-23.s: New test.
2019-06-14Regenerate with approved autotools versionAlan Modra1-0/+5
bfd/ * Makefile.in: Regenerate. * configure: Regenerate. binutils/ * Makefile.in: Regenerate. * aclocal.m4: Regenerate. * doc/Makefile.in: Regenerate. gas/ * Makefile.in: Regenerate. * configure: Regenerate. * doc/Makefile.in: Regenerate. ld/ * Makefile.in: Regenerate. * configure: Regenerate. libctf/ * configure: Regenerate.
2019-06-14PowerPC comment fixesAlan Modra1-0/+4
"paddi rt,sym@pcrel" as an abbreviation for "paddi rt,0,sym@pcrel,1" is invalid, so replace with "pla rt,sym@pcrel" which is a valid form of "pla rt,sym@pcrel(0),1". * elf64-ppc.c: Fix comments involving paddi.
2019-06-12Prevent a seg-fault from objdup when disassembling binaries which do not ↵Adam Lackorzymski1-0/+7
contain a symbol table. PR 24643 * elf32-arm.c (arm_elf_find_function): Fail if the symol table is absent, or the bfd is not in the ELF formart. * elfnn-aarch64.c (aarch64_elf_find_function): Likewise.
2019-06-10Add support for NetBSD/sh3 core file sections. Merge multiple copies of ↵Christos Zoulas1-0/+10
auxv section creation into one function. PR 24650 * elf.c (elfcore_make_auxv_note_section): New function. (elfcore_grok_note): Use it. (elfcore_grok_freebsd_note): Likewise. (elfcore_grok_openbsd_note): Likewise. (elfcore_grok_netbsd_note): Likewise. Plus add support for NT_NETBSDCORE_AUXV notes.
2019-06-06[BFD, AArch64] Fix PT_GNU_PROPERTY alignment issueSudakshina Das1-0/+5
If the new GNU property section was being created by the linker (this will happen only if none of the inputs have any GNU property section but the command line to the linker forces a bti with --force-bti), the alignment of the section and hence the program header of PT_GNU_PROPERTY type was not being set correctly. This patch fixes this issue. bfd/ChangeLog: 2019-06-06 Sudakshina Das <sudi.das@arm.com> * elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Set alignment of the new gnu property section. ld/ChangeLog: 2019-06-06 Sudakshina Das <sudi.das@arm.com> * testsuite/ld-aarch64/aarch64-elf.exp: Add new tests. * testsuite/ld-aarch64/property-bti-pac4-a.d: New test. * testsuite/ld-aarch64/property-bti-pac4-b.d: New test. * testsuite/ld-aarch64/property-bti-pac4.s: New test.
2019-06-06[LD, AArch64] Move ELF options behind -zSudakshina Das1-0/+8
This patch moves the current AArch64 ld options of --force-bti and --pac-plt to -z force-bti and -z pac-plt since these are ELF specific options. *** bfd/ChangeLog *** 2019-06-06 Sudakshina Das <sudi.das@arm.com> * bfd-in.h: Change comment. * bfd-in2.h: Regenerate. * elfnn-aarch64.c (elfNN_aarch64_merge_gnu_properties): Update warning. * elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Likwise. *** ld/ChangeLog *** 2019-06-06 Sudakshina Das <sudi.das@arm.com> * NEWS: Update options names. * emultempl/aarch64elf.em (OPTION_FORCE_BTI, OPTION_PAC_PLT): Remove. (PARSE_AND_LIST_LONGOPTS): Remove force-bti and pac-plt. (PARSE_AND_LIST_OPTIONS): Update to -z. (PARSE_AND_LIST_ARGS_CASE_Z_AARCH64): New. (PARSE_AND_LIST_ARGS_CASE_Z): Add PARSE_AND_LIST_ARGS_CASE_Z_AARCH64. (PARSE_AND_LIST_ARGS_CASES): Move cases for these options. * testsuite/ld-aarch64/bti-pac-plt-1.d: Update option. * testsuite/ld-aarch64/bti-pac-plt-2.d: Likewise. * testsuite/ld-aarch64/bti-plt-1.d: Likewise. * testsuite/ld-aarch64/bti-plt-2.d: Likewise. * testsuite/ld-aarch64/bti-plt-3.d: Likewise. * testsuite/ld-aarch64/bti-plt-4.d: Likewise. * testsuite/ld-aarch64/bti-plt-6.d: Likewise. * testsuite/ld-aarch64/bti-plt-7.d: Likewise. * testsuite/ld-aarch64/bti-warn.d: Likewise. * testsuite/ld-aarch64/pac-plt-1.d: Likewise. * testsuite/ld-aarch64/pac-plt-2.d: Likewise.
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