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2020-04-17PR25842, Null pointer dereference in nm-newAlan Modra1-2/+6
PR 25842 * elf.c (_bfd_elf_get_symbol_version_string): Don't segfault on NULL nodename.
2020-04-14The assembler only supports 32-bit stabs. So set sh_entsize unconditionally ↵Fangrui Song1-3/+1
to 12. PR gas/25768 * elf.c (assign_section_numbers): Always set .stab sh_entsize to 12.
2020-04-03elf: Remove zero-sized relocation section from section groupH.J. Lu1-11/+26
Remove zero-sized relocation section from a section group since it has been removed from the output. PR ld/25767 * elf.c (_bfd_elf_fixup_group_sections): Remove zero-sized relocation section from section group.
2020-03-25PR25662, invalid sh_offset for first section in segment with phdrsAlan Modra1-3/+19
PR 25662 * elf.c (assign_file_positions_for_load_sections): Adjust offset for SHT_NOBITS section if first in segment.
2020-03-24bfd: Add a bfd_boolean argument to bfd_get_symbol_version_stringH.J. Lu1-12/+4
We can't call _bfd_elf_get_symbol_version_name from nm.c since it isn't available for all target configurations. This patch add a bfd_boolean argument to bfd_get_symbol_version_string instead. bfd/ PR binutils/25708 * elf-bfd.h (_bfd_elf_get_symbol_version_name): Renamed to ... (_bfd_elf_get_symbol_version_string): This. * elf.c (_bfd_elf_get_symbol_version_name): Renamed to ... (_bfd_elf_get_symbol_version_string): This. (bfd_elf_print_symbol): Pass TRUE to _bfd_elf_get_symbol_version_string. * libbfd-in.h (_bfd_nosymbols_get_symbol_version_string): Add a bfd_boolean argument. * syms.c (_bfd_nosymbols_get_symbol_version_string): Likewise. * targets.c (_bfd_get_symbol_version_string): Likewise. (bfd_get_symbol_version_string): Likewise. * bfd-in2.h: Regenerated. binutils/ PR binutils/25708 * nm.c (print_symname): Replace _bfd_elf_get_symbol_version_name with bfd_get_symbol_version_string. (print_symbo): Pass TRUE to bfd_get_symbol_version_string. * objdump.c (objdump_print_symname): Likewise.
2020-03-24Fix assertion failure in the BFD library when linking with --emit-relocs ↵Nick Clifton1-3/+6
enabled. PR 25681 * elf.c (_bfd_elf_map_sections_to_segments): When looking for a segment to use for PT_GNU_RELRO, ignore empty sections in a segment's current list.
2020-03-24bfd: Display symbol version for nm -DH.J. Lu1-6/+21
Extend _bfd_elf_get_symbol_version_string for nm -D to display symbol version. _bfd_elf_get_symbol_version_name is added to avoid updating all XXX_get_symbol_version_string functions. bfd/ PR binutils/25708 * elf-bfd.h (_bfd_elf_get_symbol_version_name): New. * elf.c (_bfd_elf_get_symbol_version_name): New function. Based on the previous _bfd_elf_get_symbol_version_string. (_bfd_elf_get_symbol_version_string): Use it. binutils/ PR binutils/25708 * nm.c (SYM_NAME): Removed. (print_symname): Add a pointer to struct extended_symbol_info argument. Call _bfd_elf_get_symbol_version_name to get symbol version. (print_symdef_entry): Pass NULL to print_symname. (print_symbol_info_bsd): Update call to print_symname. (print_symbol_info_sysv): Likewise. (print_symbol_info_posix): Likewise. ld/ PR binutils/25708 * testsuite/ld-elf/pr25708.d: New file.
2020-03-20tidy elf_backend callsAlan Modra1-18/+15
Function pointers in elfNN_bed that are initialized by elfxx-target.h to non-zero values generally don't need a non-NULL test before calling them. Targets don't set a non-NULL function to NULL. The one exception being elfnn-ia64.c and that exception is removed here. * elf.c (_bfd_elf_setup_sections): Don't test known non-NULL backend functions for NULL before calling. (copy_special_section_fields, _bfd_elf_copy_private_bfd_data), (bfd_section_from_shdr, assign_section_numbers): Likewise. * elfcode.h (elf_write_relocs, elf_slurp_reloc_table): Likewise. * elfnn-ia64.c (ignore_errors): New function. (elf_backend_link_order_error_handler): Redefine as ignore_errors.
2020-03-19Fix assertion failure in the BFD library when called to parse a file ↵Nick Clifton1-2/+7
containing corrupt ELF group information. PR 25699 * elf.c (bfd_elf_set_group_contents): Replace assertion with an error return.
2020-03-18Fix seg-fault in strip when copying a file containing corrupt secondary relocs.Nick Clifton1-40/+91
PR 25673 * elf.c (_bfd_elf_write_secondary_reloc_section): Fix illegal memory access when processing a corrupt secondary reloc section.
2020-03-17Replace a couple of assertions in the BFD library that can be triggered by ↵Nick Clifton1-5/+23
attempts to parse corrupt input files. PR 25633 * elf.c (_bfd_elf_copy_special_section_fields): Replace assertions with error messages.
2020-03-17Remove a double free in the BFD library triggered when parsing a corrupt file.Nick Clifton1-1/+3
PR 25687 * elf.c (_bfd_elf_slurp_secondary_reloc_section): Remove redundant free. Add free on another failure path.
2020-03-16PR25675: SIGSEGV in bfd_octets_per_byteAlan Modra1-7/+13
PR 25675 * elf.c (elf_sort_segments): Don't call bfd_octets_per_byte unless we have a non-zero section count. Do lma comparison in octets.
2020-03-14Implement NT_NETBSDCORE_LWPSTATUS (NetBSD-Core)Kamil Rytarowski1-1/+7
bfd/ChangeLog: * elf.c (elfcore_grok_netbsd_note): Add support for NT_NETBSDCORE_LWPSTATUS notes. binutils/ChangeLog: * readelf.c (get_netbsd_elfcore_note_type): Add support for NT_NETBSDCORE_LWPSTATUS notes. include/ChangeLog: * elf/common.h (NT_NETBSDCORE_LWPSTATUS): New define.
2020-03-13Recognize aarch64 PT_GETREGS and PT_GETFPREGS notes on NetBSDKamil Rytarowski1-0/+1
* elf.c (elfcore_grok_netbsd_note): Add support for aarch64.
2020-03-13Fix several mix up between octets and bytes in ELF program headersChristian Eggers1-27/+27
Fixes additional locations not handled in the first patch. When converting between addresses in ELF headers [octets] and bfd LMA/VMA [bytes], the number of octets per byte needs to be incorporated. include/ * bfdlink.h (struct bfd_link_order): Add unit (bytes/octets) to offset and size members. * elf/internal.h (struct elf_internal_phdr): Likewise for p_align member. (struct elf_segment_map): Likewise for p_paddr and p_size members bfd/ * bfd.c (bfd_record_phdr): New local "opb". Fix assignment of "p_paddr" from "at". * elfcode.h (bfd_from_remote_memory): Add units to several parameters. New local "opb". Fix usage of p_align. Fix calculation of "localbase" from "ehdr_vma" and "p_vaddr". Fix call of target_read_memory. * elflink.c (elf_fixup_link_order): Fix scope of "s" local. Fix calculation of "offset" and "output_offset". (bfd_elf_final_link): New local "opb". Fix calculation of "size" from "offset" and fix calculation of "end" from "vma+size". Fix comparison between "sh_addr" and "vma"/"output_offset". (bfd_elf_discard_info): Fix calculation of "eh_alignment". * elf-bfd.h (struct elf_link_hash_table): Add unit to tls_size member. * elf.c (_bfd_elf_map_sections_to_segments): Add unit (bytes/ octets) to "wrap_to2 and "phdr_size" locals. Fix calculation of "wrap_to" value. Add unit (bytes) to phdr_lma variable. Fix assignment of p_paddr from phdr_lma. Fix comparison between "lma+size" and "next->lma". (elf_sort_segments): Fix assignment from p_paddr to lma. (assign_file_positions_for_load_sections): Add unit (bytes) to local "align". Fix calculation of local "off_adjust". Fix calculation of local "filehdr_vaddr". (assign_file_positions_for_non_load_sections): New local "opb". Fix calculation of "end" from "p_size". Fix comparison between "vma+SECTION_SIZE" and "start". Fix calculation of "p_memsz" from "end" and "p_vaddr". (rewrite_elf_program_header): Fix comparison between p_vaddr and vma. Fix assignment to p_paddr from lma. Fix comparison between p_paddr and lma. Fix assignment to p_paddr from lma. * merge.c (sec_merge_emit): New local "opb". Convert "alignment_power" to octets. (_bfd_add_merge_section): New locals "alignment_power" and "opb". Fix comparison between "alignment_power" and "sizeof(align)". (_bfd_merge_sections): New local "opb". Divide size by opb before checking align mask.
2020-03-13Fix several mix up between octets and bytes in ELF program headersChristian Eggers1-56/+75
When converting between addresses in ELF headers [octets] and bfd LMA/VMA [bytes], the number of octets per byte needs to be incorporated. In ld, the SIZEOF_HEADERS linker script statement must be resolved to bytes instead of octets. include/ * elf/internal.h (struct elf_internal_phdr): Add unit (octets) to several member field comments. (Elf_Internal_Shdr): likewise. bfd/ * elf.c (_bfd_elf_make_section_from_shdr): Introduce new temp opb. Divide Elf_Internal_Shdr::sh_addr by opb when setting section LMA/VMA. (_bfd_elf_make_section_from_phdr): Similarly. (elf_fake_sections): Fix calculation of Elf_Internal_shdr::sh_addr from section VMA. (_bfd_elf_map_sections_to_segments): Fix mixup between octets and bytes. (assign_file_positions_for_load_sections): Fix calculations of Elf_Internal_shdr::p_vaddr and p_paddr from section LMA/VMA. Fix comparison between program header address and section LMA. (assign_file_positions_for_non_load_sections): Likewise. (rewrite_elf_program_header): Likewise. Introduce new temp opb. (IS_CONTAINED_BY_VMA): Add parameter opb. (IS_CONTAINED_BY_LMA,IS_SECTION_IN_INPUT_SEGMENT, INCLUDE_SECTION_IN_SEGMENT): Likewise. (copy_elf_program_header): Update call to ELF_SECTION_IN_SEGMENT. Fix calculations of p_addr_valid and p_vaddr_offset. * elflink.c (elf_link_add_object_symbols): Multiply section VMA with octets per byte when comparing against p_vaddr. ld/ * ldexp.c (fold_name): Return SIZEOF_HEADERS in bytes.
2020-03-06Fix an abort triggered when objcopy is used to set the "share" section flag ↵Nick Clifton1-7/+33
on an ELF section. binutils* objcopy.c (check_new_section_flags): New function. Reject the SEC_COFF_SHARED flag if the target is not a COFF binary. (copy_object): Call check_new_section_flags. (setup_section): Likewise. * doc/binutils.texi (objcopy): Add a note that the 'share' section flag cannot be applied to ELF binaries. bfd * elf.c (_bfd_elf_set_section_contents): Replace call to abort with error messages and failure return values.
2020-03-05Add support for ELF files which contain multiple reloc sections which all ↵Nick Clifton1-6/+371
target the same section. * elf-bfd.h (struct elf_backend_data): Add new fields: init_secondary_reloc_section, slurp_secondary_reloc_section, write_secondary_reloc_section. (_bfd_elf_init_secondary_reloc_section): Prototype. (_bfd_elf_slurp_secondary_reloc_section): Prototype. (_bfd_elf_write_secondary_reloc_section): Prototype. * elf.c ( bfd_section_from_shdr): Invoke the new init_secondary_reloc_section backend function, if defined, when a second reloc section is encountered. (swap_out_syms): Invoke the new symbol_section_index function, if defined, when computing the section index of an OS/PROC specific symbol. (_bfd_elf_init_secondary_reloc_section): New function. (_bfd_elf_slurp_secondary_reloc_section): New function. (_bfd_elf_write_secondary_reloc_section): New function. (_bfd_elf_copy_special_section_fields): New function. * elfcode.h (elf_write_relocs): Invoke the new write_secondary_relocs function, if defined, in order to emit secondary relocs. (elf_slurp_reloc_table): Invoke the new slurp_secondary_relocs function, if defined, in order to read in secondary relocs. * elfxx-target.h (elf_backend_copy_special_section_fields): Provide a non-NULL default definition. (elf_backend_init_secondary_reloc_section): Likewise. (elf_backend_slurp_secondary_reloc_section): Likewise. (elf_backend_write_secondary_reloc_section): Likewise. (struct elf_backend_data elfNN_bed): Add initialisers for the new fields. * configure.ac (score_elf32_[bl]e_vec): Add elf64.lo * configure: Regenerate.
2020-03-04sh_addralign inconsistent with sh_addrAlan Modra1-1/+5
The ELF gABI says in part of sh_addralign: "The value of sh_addr must be congruent to 0, modulo the value of sh_addralign." * elf.c (elf_fake_sections): Ensure sh_addralign is such that sh_addr mod sh_addalign is zero.
2020-03-02elf_backend_section_flags and _bfd_elf_init_private_section_dataAlan Modra1-34/+28
I was looking at elf_backend_section_flags as a means of setting SEC_SMALL_DATA for .sdata, .sbss and the like, and condidered adding an asection* parameter to access the section name easily before realising that hdr->bfd_section of course makes the section available. So no new parameter needed. In fact the flagword* parameter isn't needed either, so out it goes. The patch also tidies some horrible code in _bfd_elf_new_section_hook that can change whether known ABI sections have sh_type and sh_flags set up depending on which of the bfd_make_section functions is used. (Some of those set section flags before _bfd_elf_new_section_hook is called, others leave the flags zero.) The function also had some hacks for .init_array and .fini_array to affect how _bfd_elf_init_private_section_data behaved for those sections. It's cleaner to do that in _bfd_elf_init_private_section_data. So that all goes and we now init sh_type and sh_flags for all known ABI sections in _bfd_elf_new_section_hook. _bfd_elf_init_private_section_data is changed to suit, and now doesn't just single out SHT_INIT_ARRAY and SHT_FINI_ARRAY but rather any of the special section types. The _bfd_elf_new_section_hook change resulting in +FAIL: ld-aarch64/erratum835769-843419 exposing some errors in the aarch64 backend. elfNN_aarch64_size_stubs should not be looking at linker created sections in the stub bfd. Nor should code like "symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr" be run without first checking that input_bfd is ELF. * elf-bfd.h (elf_backend_section_flags): Remove flagword* param. * elf.c (_bfd_elf_make_section_from_shdr): Set section flags before calling elf_backend_section_flags with adjusted params. Use newsect->flags past that point. (_bfd_elf_new_section_hook): Always set sh_type and sh_flags for special sections. (_bfd_elf_init_private_section_data): Allow normal sh_type sections to have their type overridden, and all sh_flags but processor and os specific. * elf32-arm.c (elf32_arm_section_flags): Adjust for changed params. * elf32-mep.c (mep_elf_section_flags): Likewise. * elf32-nios2.c (nios2_elf32_section_flags): Likewise. * elf64-alpha.c (elf64_alpha_section_flags): Likewise. * elf64-ia64-vms.c (elf64_ia64_section_flags): Likewise. * elfnn-ia64.c (elfNN_ia64_section_flags): Likewise. * elfnn-aarch64.c (elfNN_aarch64_size_stubs): Exclude the linker stub BFD and non-aarch64 input files when scanning for stubs.
2020-02-26Indent labelsAlan Modra1-3/+3
Labels don't go in the first column according to standard emacs C indent rules, and I got annoyed enough at seeing diff -p show a label rather than the function name to fix this. bfd/ * aoutx.h: Indent labels correctly. Format error strings. * archive.c: Likewise. * archive64.c: Likewise. * coff-arm.c: Likewise. * coff-rs6000.c: Likewise. * coff-stgo32.c: Likewise. * cpu-arm.c: Likewise. * dwarf2.c: Likewise. * elf-ifunc.c: Likewise. * elf-properties.c: Likewise. * elf-s390-common.c: Likewise. * elf-strtab.c: Likewise. * elf.c: Likewise. * elf32-arm.c: Likewise. * elf32-bfin.c: Likewise. * elf32-cr16.c: Likewise. * elf32-csky.c: Likewise. * elf32-i386.c: Likewise. * elf32-m68k.c: Likewise. * elf32-msp430.c: Likewise. * elf32-nds32.c: Likewise. * elf32-nios2.c: Likewise. * elf32-pru.c: Likewise. * elf32-xtensa.c: Likewise. * elf64-ia64-vms.c: Likewise. * elf64-x86-64.c: Likewise. * elfcode.h: Likewise. * elfcore.h: Likewise. * elflink.c: Likewise. * elfnn-aarch64.c: Likewise. * elfnn-ia64.c: Likewise. * elfnn-riscv.c: Likewise. * elfxx-mips.c: Likewise. * elfxx-sparc.c: Likewise. * elfxx-x86.c: Likewise. * i386lynx.c: Likewise. * merge.c: Likewise. * pdp11.c: Likewise. * plugin.c: Likewise. * reloc.c: Likewise. binutils/ * elfedit.c: Indent labels correctly. * readelf.c: Likewise. * resres.c: Likewise. gas/ * config/obj-elf.c: Indent labels correctly. * config/obj-macho.c: Likewise. * config/tc-aarch64.c: Likewise. * config/tc-alpha.c: Likewise. * config/tc-arm.c: Likewise. * config/tc-cr16.c: Likewise. * config/tc-crx.c: Likewise. * config/tc-frv.c: Likewise. * config/tc-i386-intel.c: Likewise. * config/tc-i386.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-mn10200.c: Likewise. * config/tc-mn10300.c: Likewise. * config/tc-nds32.c: Likewise. * config/tc-riscv.c: Likewise. * config/tc-s12z.c: Likewise. * config/tc-xtensa.c: Likewise. * config/tc-z80.c: Likewise. * read.c: Likewise. * symbols.c: Likewise. * write.c: Likewise. ld/ * emultempl/cskyelf.em: Indent labels correctly. * ldfile.c: Likewise. * ldlang.c: Likewise. * plugin.c: Likewise. opcodes/ * aarch64-asm.c: Indent labels correctly. * aarch64-dis.c: Likewise. * aarch64-gen.c: Likewise. * aarch64-opc.c: Likewise. * alpha-dis.c: Likewise. * i386-dis.c: Likewise. * nds32-asm.c: Likewise. * nfp-dis.c: Likewise. * visium-dis.c: Likewise.
2020-02-22PR25585, PHDR segment not covered by LOAD segmentAlan Modra1-1/+5
I closed this bug as invalid, but I think it is worth mentioning in NEWS that older linkers didn't check PT_PHDR very well. The patch also allows people to force an output file with --noinhibit-exec after the error. bfd/ PR 25585 * elf.c (assign_file_positions_for_load_sections): Continue linking on "PHDR segment not covered by LOAD segment" errors. ld/ PR 25585 * NEWS: Mention better "PHDR segment not covered by LOAD segment" checking.
2020-02-20Stop the BFD library from automatically converting OS and PROC specific ↵Nick Clifton1-1/+18
symbol section indicies to SHN_ABS, and provide a hook for backends to decide how such indicies should be processed. * elf-bfd.h (struct elf_backend_data): Add symbol_section_index callback. * elfxx-target.h (elf_backend_symbol_section_index): Provide default definition. (elfNN_bed): Initialise the symbol_section_index field. * elf.c (swap_out_syms): Call symbol_section_index, if defined, on OS and PROC specific section indicies. Warn if converting other reserved incidies to SHN_ABS.
2020-02-19file size check in _bfd_alloc_and_readAlan Modra1-14/+0
* coffgen.c (_bfd_coff_get_external_symbols): Remove file size check. * elf.c (bfd_elf_get_str_section): Likewise. (_bfd_elf_slurp_version_tables): Likewise. * libbfd-in.h (_bfd_constant_p): Define. (_bfd_alloc_and_read, _bfd_malloc_and_read): Check read size against file size before allocating memory. * libbfd.h: Regenerate.
2020-02-19_bfd_alloc_and_readAlan Modra1-31/+14
This patch provides two new inline functions that are then used in places that allocate memory, read from file, and then deallocate on a read failure. * libbfd-in.h (_bfd_alloc_and_read, _bfd_malloc_and_read): New. * aoutx.h (aout_get_external_symbols): Replace calls to bfd_[m]alloc and bfd_bread with call to _bfd_[m]alloc_and_read. (slurp_reloc_table): Likewise. * archive.c (do_slurp_bsd_armap): Likewise. (do_slurp_coff_armap): Likewise. * archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise. * coff-rs6000.c (_bfd_xcoff_slurp_armap): Likewise. * coff64-rs6000.c (xcoff64_slurp_armap): Likewise. * coffcode.h (coff_set_arch_mach_hook, buy_and_read): Likewise. * coffgen.c (coff_real_object_p, coff_object_p, build_debug_section), (_bfd_coff_get_external_symbols): Likewise. * ecoff.c (ecoff_slurp_symbolic_header), (_bfd_ecoff_slurp_symbolic_info, ecoff_slurp_reloc_table), (_bfd_ecoff_slurp_armap, ecoff_link_add_object_symbols, READ), (ecoff_indirect_link_order): Likewise. * elf.c (bfd_elf_get_str_section, setup_group, elf_read_notes), (_bfd_elf_slurp_version_tables): Likewise. * elf32-m32c.c (m32c_elf_relax_section): Likewise. * elf32-rl78.c (rl78_elf_relax_section): Likewise. * elf32-rx.c (elf32_rx_relax_section): Likewise. * elf64-alpha.c (READ): Likewise. * elf64-mips.c (mips_elf64_slurp_one_reloc_table): Likewise. * elf64-sparc.c (elf64_sparc_slurp_one_reloc_table): Likewise. * elfcode.h (elf_slurp_symbol_table), (elf_slurp_reloc_table_from_section): Likewise. * elflink.c (elf_link_add_object_symbols), (elf_link_check_versioned_symbol): Likewise. * elfxx-mips.c (READ): Likewise. * i386lynx.c (slurp_reloc_table): Likewise. * lynx-core.c (lynx_core_file_p): Likewise. * mach-o.c (bfd_mach_o_canonicalize_relocs), (bfd_mach_o_read_symtab_strtab, bfd_mach_o_alloc_and_read), (bfd_mach_o_read_prebound_dylib, bfd_mach_o_read_dyld_content * pdp11.c (aout_get_external_symbols, slurp_reloc_table * pef.c (bfd_pef_print_loader_section, bfd_pef_scan_start_address), (bfd_pef_parse_symbols): Likewise. * peicode.h (pe_ILF_object_p, pe_bfd_object_p * som.c (setup_sections, som_slurp_string_table), (som_slurp_reloc_table, som_bfd_count_ar_symbols), (som_bfd_fill_in_ar_symbols): Likewise. * vms-alpha.c (module_find_nearest_line, evax_bfd_print_dst), (evax_bfd_print_image): Likewise. * vms-lib.c (_bfd_vms_lib_archive_p): Likewise. * wasm-module.c (wasm_scan): Likewise. * xcofflink.c (xcoff_link_add_symbols): Likewise. * xsym.c (bfd_sym_read_name_table), (bfd_sym_print_type_information_table_entry): Likewise. * libbfd.h: Regenerate.
2020-02-19_bfd_mul_overflowAlan Modra1-59/+85
This patch removes the bfd_alloc2 series of memory allocation functions, replacing them with __builtin_mul_overflow followed by bfd_alloc. Why do that? Well, a followup patch will implement _bfd_alloc_and_read and I don't want to implement alloc2 variants as well. * coffcode.h (buy_and_read, coff_slurp_line_table), (coff_slurp_symbol_table, coff_slurp_reloc_table): Replace bfd_[z][m]alloc2 calls with _bfd_mul_overflow followed by the corresponding bfd_alloc call. Adjust variables to suit. * coffgen.c (_bfd_coff_get_external_symbols): Likewise. * ecoff.c (_bfd_ecoff_slurp_symbolic_info), (_bfd_ecoff_slurp_symbol_table, READ): Likewise. * elf.c (bfd_elf_get_elf_syms, setup_group, bfd_section_from_shdr), (swap_out_syms, _bfd_elf_slurp_version_tables): Likewise. * elf32-m32c.c (m32c_elf_relax_section): Likewise. * elf32-rl78.c (rl78_elf_relax_section): Likewise. * elf32-rx.c (elf32_rx_relax_section): Likewise. * elf64-alpha.c (READ): Likewise. * elfcode.h (elf_object_p, elf_write_relocs, elf_write_shdrs_and_ehdr), (elf_slurp_symbol_table, elf_slurp_reloc_table), (bfd_from_remote_memory): Likewise. * elfcore.h (core_find_build_id): Likewise. * elfxx-mips.c (READ): Likewise. * mach-o.c (bfd_mach_o_mangle_sections), (bfd_mach_o_read_symtab_symbols, bfd_mach_o_read_thread), (bfd_mach_o_read_dysymtab, bfd_mach_o_flatten_sections), (bfd_mach_o_scan, bfd_mach_o_fat_archive_p): Likewise. * som.c (setup_sections, som_prep_for_fixups) (som_build_and_write_symbol_table, som_slurp_symbol_table), (som_slurp_reloc_table, som_bfd_count_ar_symbols), (som_bfd_fill_in_ar_symbols, som_slurp_armap), (som_bfd_ar_write_symbol_stuff): Likewise. * vms-alpha.c (vector_grow1): Likewise. * vms-lib.c (vms_add_index): Likewise. * wasm-module.c (wasm_scan_name_function_section): Likewise. * libbfd.c (bfd_malloc2, bfd_realloc2, bfd_zmalloc2): Delete. * opncls.c (bfd_alloc2, bfd_zalloc2): Delete. * libbfd-in.h (bfd_malloc2, bfd_realloc2, bfd_zmalloc2), (bfd_alloc2, bfd_zalloc2): Delete. (_bfd_mul_overflow): Define. * libbfd.h: Regenerate.
2020-02-19alloc2 used unnecessarilyAlan Modra1-18/+21
The bfd_alloc2 series of functions were invented to handle cases where nmemb * size can overflow. This patch changes some places where the calculation can't overflow. * elf.c (bfd_section_from_shdr): Use bfd_zalloc rather than bfd_zalloc2. (assign_section_numbers): Likewise. (elf_map_symbols): Likewise, and bfd_alloc rather than bfd_alloc2. (_bfd_elf_map_sections_to_segments): Use bfd_malloc rather than bfd_malloc2, size_t amt, and unsigned tls_count. (rewrite_elf_program_header): Use bfd_malloc and size_t amt. * elflink.c (elf_create_symbuf): Use bfd_malloc. (elf_output_implib): Use bfd_alloc.
2020-02-19Check return status of memory alloc functionsAlan Modra1-0/+2
This fixes a number of places that call a memory allocation function without checking for a NULL return before using. * mach-o.c (bfd_mach_o_flatten_sections): Return a bfd_boolean, FALSE if memory alloc fails. Adjust calls. * som.c (som_prep_for_fixups): Likewise. * vms-alpha.c (alpha_vms_add_fixup_lp, alpha_vms_add_fixup_ca), (alpha_vms_add_fixup_qr, alpha_vms_add_fixup_lr), (alpha_vms_add_lw_reloc, alpha_vms_add_qw_reloc): Likewise. * som.c (som_build_and_write_symbol_table): Return via error_return on seek failure. * vms-alpha.c (VEC_APPEND): Adjust for vector_grow1 changes. (VEC_APPEND_EL): Delete. (vector_grow1): Return pointer to element. Catch overflow. Return NULL on memory allocation failure. (alpha_vms_add_fixup_lp): Replace VEC_APPEND_EL with VEC_APPEND. (alpha_vms_add_fixup_ca): Likewise. (alpha_vms_link_add_object_symbols): Check VEC_APPEND result before using. * elf.c (bfd_section_from_shdr): Check bfd_zalloc2 result.
2020-02-19bfd_size_type to size_tAlan Modra1-3/+3
bfd_size_type was invented a long time ago in the K&R days. Many places in binutils ought to be using size_t instead (and there are lots of places that use long or unsigned long that really ought to use size_t too). Note that you can't change everything over to size_t: A 32-bit host needs a larger type than size_t to support reading and processing of 64-bit ELF object files. This patch just tidies some of the more obvious uses of bfd_size_type that could be size_t. There no doubt are more lurking in the source. Incidentally, practically all functions used for output of object files can use size_t and don't need to worry about overflow of size expressions. If you have something like symcount * sizeof (void *) when symcount is counting symbols already in memory then you know that this expression can't overflow since the size of a symbol in memory is larger by far than that of a pointer. * aix386-core.c (aix386_core_file_p): Use size_t for "amt". * aout-target.h (object_p): Likewise. * aout-tic30.c (tic30_aout_object_p): Likewise. * aoutx.h (some_aout_object_p, mkobject, make_empty_symbol), (emit_stringtab, write_syms, link_hash_table_create), (aout_link_write_other_symbol): Likewise. * archive.c (_bfd_generic_mkarchive, bfd_generic_archive_p), (bfd_ar_hdr_from_filesystem, _bfd_write_archive_contents), (_bfd_compute_and_write_armap): Likewise. * archures.c (bfd_arch_list): Likewise. * bfd.c (bfd_record_phdr): Likewise. * binary.c (binary_canonicalize_symtab): Likewise. * cisco-core.c (cisco_core_file_validate): Likewise. * coff-arm.c (coff_arm_link_hash_table_create, find_thumb_glue), (find_arm_glue, record_arm_to_thumb_glue), (record_thumb_to_arm_glue): Likewise. * coff-ppc.c (ppc_coff_link_hash_table_create, record_toc), (ppc_allocate_toc_section): Likewise. * coff-rs6000.c (_bfd_xcoff_mkobject, _bfd_xcoff_archive_p): Likewise. * coff-sh.c (sh_relax_section): Likewise. * coff64-rs6000.c (xcoff64_archive_p): Likewise. * coffcode.h (handle_COMDAT, coff_new_section_hook), (coff_set_alignment_hook, coff_mkobject), (coff_compute_section_file_positions): Likewise. * coffgen.c (coff_make_empty_symbol, coff_bfd_make_debug_symbol), (coff_find_nearest_line_with_names), ( bfd_coff_set_symbol_class): Likewise. * cofflink.c (_bfd_coff_link_hash_table_create), (_bfd_coff_link_input_bfd): Likewise. * dwarf1.c (alloc_dwarf1_unit, alloc_dwarf1_func): Likewise. * dwarf2.c (read_abbrevs, read_attribute_value, add_line_info), (build_line_info_table, sort_line_sequences), (line_info_add_include_dir, line_info_add_file_name), (decode_line_info, scan_unit_for_symbols, parse_comp_unit), (place_sections, _bfd_dwarf2_slurp_debug_info): Likewise. * ecoff.c (_bfd_ecoff_mkobject, _bfd_ecoff_make_empty_symbol), (_bfd_ecoff_find_nearest_line), (_bfd_ecoff_bfd_link_hash_table_create): Likewise. * ecofflink.c (bfd_ecoff_debug_init): Likewise. * elf-hppa.h (_bfd_elf_hppa_gen_reloc_type): Likewise. * elf-m10300.c (mn10300_elf_relax_section), (elf32_mn10300_link_hash_table_create): Likewise. * elf-strtab.c (_bfd_elf_strtab_init): Likewise. * elf.c (make_mapping, copy_elf_program_header): Likewise. * elf32-arm.c (elf32_arm_link_hash_table_create), (elf32_arm_setup_section_lists, elf32_arm_check_relocs), (elf32_arm_new_section_hook): Likewise. * elf32-avr.c (elf_avr_new_section_hook), (elf32_avr_link_hash_table_create, get_local_syms), (elf32_avr_setup_section_lists): Likewise. * elf32-bfin.c (bfinfdpic_elf_link_hash_table_create), (bfin_link_hash_table_create): Likewise. * elf32-cr16.c (elf32_cr16_link_hash_table_create): Likewise. * elf32-cris.c (elf_cris_link_hash_table_create): Likewise. * elf32-csky.c (csky_elf_link_hash_table_create), (csky_elf_check_relocs, elf32_csky_setup_section_lists): Likewise. * elf32-frv.c (frvfdpic_elf_link_hash_table_create): Likewise. * elf32-hppa.c (elf32_hppa_link_hash_table_create), (elf32_hppa_setup_section_lists, get_local_syms): Likewise. * elf32-i386.c (elf_i386_check_relocs): Likewise. * elf32-lm32.c (lm32_elf_link_hash_table_create): Likewise. * elf32-m32r.c (m32r_elf_link_hash_table_create), (m32r_elf_check_relocs): Likewise. * elf32-m68hc1x.c (m68hc11_elf_hash_table_create), (elf32_m68hc11_setup_section_lists), (elf32_m68hc11_size_stubs): Likewise. * elf32-m68k.c (elf_m68k_link_hash_table_create): Likewise. * elf32-metag.c (elf_metag_link_hash_table_create), (elf_metag_setup_section_lists): Likewise. * elf32-microblaze.c (microblaze_elf_link_hash_table_create), (microblaze_elf_check_relocs): Likewise. * elf32-nds32.c (nds32_elf_link_hash_table_create), (nds32_elf_check_relocs): Likewise. * elf32-nios2.c (nios2_elf32_setup_section_lists), (get_local_syms, nios2_elf32_check_relocs), (nios2_elf32_link_hash_table_create): Likewise. * elf32-or1k.c (or1k_elf_link_hash_table_create), (or1k_elf_check_relocs): Likewise. * elf32-ppc.c (ppc_elf_modify_segment_map, update_plt_info): Likewise. * elf32-pru.c (pru_elf32_link_hash_table_create): Likewise. * elf32-s390.c (elf_s390_link_hash_table_create), (elf_s390_check_relocs): Likewise. * elf32-score.c (score_elf_create_got_section), (s3_elf32_score_new_section_hook), (elf32_score_link_hash_table_create): Likewise. * elf32-score7.c (score_elf_create_got_section), (s7_elf32_score_new_section_hook): Likewise. * elf32-sh.c (sh_elf_link_hash_table_create), (sh_elf_check_relocs): Likewise. * elf32-tic6x.c (elf32_tic6x_link_hash_table_create), (elf32_tic6x_new_section_hook, elf32_tic6x_check_relocs): Likewise. * elf32-tilepro.c (tilepro_elf_link_hash_table_create), (tilepro_elf_check_relocs): Likewise. * elf32-v850.c (remember_hi16s_reloc): Likewise. * elf32-vax.c (elf_vax_link_hash_table_create): Likewise. * elf32-xtensa.c (elf_xtensa_link_hash_table_create), (elf_xtensa_new_section_hook): Likewise. * elf64-alpha.c (elf64_alpha_bfd_link_hash_table_create), (get_got_entry, elf64_alpha_check_relocs): Likewise. * elf64-hppa.c (elf64_hppa_hash_table_create): Likewise. * elf64-ia64-vms.c (elf64_ia64_object_p): Likewise. * elf64-mmix.c (mmix_elf_new_section_hook): Likewise. * elf64-ppc.c (ppc64_elf_new_section_hook), (ppc64_elf_link_hash_table_create, update_local_sym_info), (update_plt_info, ppc64_elf_check_relocs): Likewise. * elf64-s390.c (elf_s390_link_hash_table_create), (elf_s390_check_relocs): Likewise. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elflink.c (bfd_elf_link_record_local_dynamic_symbol), (_bfd_elf_link_find_version_dependencies, elf_link_add_object_symbols), (elf_link_add_archive_symbols, compute_bucket_count), (bfd_elf_size_dynsym_hash_dynstr, _bfd_elf_link_hash_table_create), (bfd_elf_get_bfd_needed_list, elf_link_swap_symbols_out), (bfd_elf_final_link): Likewise. * elfnn-aarch64.c (elfNN_aarch64_link_hash_table_create), (elfNN_aarch64_setup_section_lists, elfNN_aarch64_check_relocs), (elfNN_aarch64_new_section_hook): Likewise. * elfnn-ia64.c (elfNN_ia64_object_p): Likewise. * elfnn-riscv.c (riscv_elf_link_hash_table_create), (riscv_elf_check_relocs): Likewise. * elfxx-mips.c (_bfd_mips_elf_new_section_hook), (_bfd_mips_elf_add_symbol_hook, _bfd_mips_elf_check_relocs), (_bfd_mips_elf_modify_segment_map, _bfd_mips_elf_set_section_contents), (_bfd_mips_elf_link_hash_table_create): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_link_hash_table_create), (_bfd_sparc_elf_check_relocs), (_bfd_sparc_elf_new_section_hook): Likewise. * elfxx-tilegx.c (tilegx_elf_link_hash_table_create), (tilegx_elf_check_relocs): Likewise. * elfxx-x86.c (_bfd_x86_elf_link_hash_table_create): Likewise. * format.c (bfd_check_format_matches): Likewise. * hash.c (_bfd_stringtab_init): Likewise. * ihex.c (ihex_scan): Likewise. * irix-core.c (irix_core_core_file_p): Likewise. * linker.c (bfd_wrapped_link_hash_lookup), (_bfd_generic_link_hash_table_create), (_bfd_generic_reloc_link_order): Likewise. * lynx-core.c (lynx_core_file_p): Likewise. * netbsd-core.c (netbsd_core_file_p): Likewise. * osf-core.c (osf_core_core_file_p): Likewise. * pdp11.c (some_aout_object_p, mkobject, make_empty_symbol), (link_hash_table_create, aout_link_write_other_symbol): Likewise. * peXXigen.c (_bfd_XX_bfd_copy_private_section_data): Likewise. * peicode.h (pe_mkobject): Likewise. * ppcboot.c (ppcboot_mkobject, ppcboot_canonicalize_symtab): Likewise. * ptrace-core.c (ptrace_unix_core_file_p): Likewise. * sco5-core.c (read_uarea): Likewise. * som.c (hppa_som_gen_reloc_type, som_object_p, som_prep_headers), (som_write_fixups, som_write_space_strings, som_write_symbol_strings), (som_finish_writing, som_canonicalize_symtab, som_new_section_hook), (som_bfd_copy_private_section_data, bfd_som_set_section_attributes), (bfd_som_attach_aux_hdr, som_write_armap): Likewise. * srec.c (srec_scan): Likewise. * syms.c (_bfd_generic_make_empty_symbol): Likewise. * targets.c (bfd_target_list): Likewise. * tekhex.c (first_phase, tekhex_sizeof_headers): Likewise. * trad-core.c (trad_unix_core_file_p): Likewise. * vms-alpha.c (vms_initialize, alpha_vms_bfd_link_hash_table_create), (vms_new_section_hook): Likewise. * wasm-module.c (wasm_make_empty_symbol): Likewise. * xcofflink.c (xcoff_get_section_contents), (_bfd_xcoff_bfd_link_hash_table_create, xcoff_set_import_path), (xcoff_find_function, bfd_xcoff_link_record_set, xcoff_build_ldsym), (bfd_xcoff_size_dynamic_sections, xcoff_link_input_bfd): Likewise.
2020-02-07Stop the BFD library from complaining if a segment has no sections attached ↵Nick Clifton1-8/+9
to it. PR 23932 * elf.c (rewrite_elf_program_header): Do not complain if no sections are mapped to a segment.
2020-01-31OOM in setup_groupAlan Modra1-3/+3
We alloc, seek and read using section sizes in object files. Fuzzed objects can have silly sizes, but that's OK if the system supports memory over-commit. The read fails because we hit EOF and that usually results in a graceful exit. But if we memset before the read then the invalid size results in attempting to write to a huge number of memory pages, and an eventual Out Of Memory after probably swapping like crazy. So don't memset. There really isn't a need to clear the section contents anyway. All bytes are written with a good object file by the read and following loop converting section index in target order to ELF section header pointer, and the only untidy bytes are the 4 bytes past the group flags when pointers are 8 bytes. Those don't matter but the patch clears them for anyone poking around in a debugger. On error paths it's as good to free section contents as it is to clear them. Noticed when looking at PR4110 fourth test case. PR 4110 * elf.c (setup_group): Don't clear entire section contents, just the padding after group flags. Release alloc'd memory after a seek or read failure.
2020-01-23PR25444, Floating point exception in _bfd_elf_compute_section_file_positionsAlan Modra1-5/+11
PR 25444 * elf.c (assign_file_positions_for_load_sections): Avoid divide by zero when p_align is zero.
2020-01-01Update year range in copyright notice of binutils filesAlan Modra1-1/+1
2019-12-13Set no file contents PT_LOAD p_offset to first pageAlan Modra1-1/+9
PR 25237 * elf.c (assign_file_positions_for_load_sections): Attempt to keep meaningless p_offset for PT_LOAD segments without file contents within file size.
2019-11-27PR23652, Use symbols from debug bfd for _bfd_elf_find_functionAlan Modra1-4/+5
Sometimes DWARF info for a function is incomplete, and the function can be retrieved by examining symbols. However, when separate debug files are used it may be that the original file is completely stripped of symbols. This patch teaches BFD to look at symbols from the debug file in that case. The patch also removes arm_elf_find_function, instead implementing elf_backend_maybe_function_sym. arm_elf_find_function was written before the generic _bfd_elf_find_function called maybe_function_sym. aarch64 copied arm, so that file gets the same treatment. There is some chance this will speed up arm and aarch64 lookup of function/line. PR 23652 * dwarf2.c (_bfd_dwarf2_stash_syms): New function. (_bfd_dwarf2_find_nearest_line): Use it here, passing syms to _bfd_elf_find_function. Call _bfd_elf_find_function in cases where _bfd_elf_find_nearest_line would do so. * elf.c (_bfd_elf_find_nearest_line): Omit _bfd_elf_find_function for dwarf2. * elfxx-mips.c (_bfd_mips_elf_find_nearest_line): Similarly. Tidy. * elf32-arm.c (elf32_arm_maybe_function_sym): New function. (elf_backend_maybe_function_sym): Define. (arm_elf_find_function, elf32_arm_find_nearest_line): Delete. (bfd_elf32_find_nearest_line): Don't define. * elfnn-aarch64.c (elfNN_aarch64_maybe_function_sym): New function. (elf_backend_maybe_function_sym): Define. (aarch64_elf_find_function, elfNN_aarch64_find_nearest_line): Delete. (bfd_elfNN_find_nearest_line): Don't define.
2019-11-25Pass section when available to bfd_octets_per_byteAlan Modra1-27/+11
and other tidies. I think it's better to default to passing the section to bfd_octets_per_byte, even in cases where we know it won't make a difference. A number of the coff reloc functions used bfd_octets_per_byte wrongly, not factoring it into the offset into the data buffer. As it happens, the targets using those files always had bfd_octets_per_byte equal to one, so there wasn't any detectable wrong behaviour. However, it is wrong in the source and might cause trouble for anyone creating a new target. Besides fixing that, the patch also defines OCTETS_PER_BYTE as one in target files where that is appropriate. bfd/ * archures.c (bfd_octets_per_byte): Tail call bfd_arch_mach_octets_per_byte. * coff-arm.c (OCTETS_PER_BYTE): Define. (coff_arm_reloc): Introduce new "octets" temp. Use OCTETS_PER_BYTE with section. Correct "addr". Remove ATTRIBUTE_UNUSED. * coff-i386.c (coff_i386_reloc): Similarly. * coff-mips.c (mips_reflo_reloc): Similarly. * coff-x86_64.c (coff_amd64_reloc): Similarly. * elf32-msp430.c (OCTETS_PER_BYTE): Define. (rl78_sym_diff_handler): Use OCTETS_PER_BYTE, with section. * elf32-nds32.c (nds32_elf_get_relocated_section_contents): Similarly. * elf32-ppc.c (ppc_elf_addr16_ha_reloc): Similarly. * elf32-pru.c (pru_elf32_do_ldi32_relocate): Similarly. * elf32-s12z.c (opru18_reloc): Similarly. * elf32-sh.c (sh_elf_reloc): Similarly. * elf32-spu.c (spu_elf_rel9): Similarly. * elf32-xtensa.c (bfd_elf_xtensa_reloc): Similarly. * elf64-ppc.c (ppc64_elf_ha_reloc, ppc64_elf_brtaken_reloc), (ppc64_elf_toc64_reloc): Similarly. * bfd.c (bfd_get_section_limit): Pass section to bfd_octets_per_byte. * cofflink.c (_bfd_coff_link_input_bfd), (_bfd_coff_reloc_link_order): Likewise. * elf.c (_bfd_elf_section_offset): Likewise. * elflink.c (resolve_section, bfd_elf_perform_complex_relocation), (elf_link_input_bfd, elf_reloc_link_order, elf_fixup_link_order), (bfd_elf_final_link): Likewise. * elf.c (_bfd_elf_make_section_from_shdr): Don't strncmp twice to set SEC_ELF_OCTETS. * reloc.c (bfd_perform_relocation): Tidy SEC_ELF_OCTETS special case. (bfd_install_relocation): Likewise. (_bfd_final_link_relocate): Don't recalculate octets. * syms.c (_bfd_stab_section_find_nearest_line): Introduc new "octets" temp. * bfd-in2.h: Regenerate. ld/ * ldexp.c (fold_name): Pass section to bfd_octets_per_byte. * ldlang.c (init_opb): Don't call bfd_arch_mach_octets_per_byte unnecessarily.
2019-11-25Introduce new section flag: SEC_ELF_OCTETSChristian Eggers1-1/+11
All symbols, sizes and relocations in this section are octets instead of bytes. Required for DWARF debug sections as DWARF information is organized in octets, not bytes. bfd/ * section.c (struct bfd_section): New flag SEC_ELF_OCTETS. * archures.c (bfd_octets_per_byte): New parameter sec. If section is not NULL and SEC_ELF_OCTETS is set, one octet es returned [ELF targets only]. * bfd.c (bfd_get_section_limit): Provide section parameter to bfd_octets_per_byte. * bfd-in2.h: regenerate. * binary.c (binary_set_section_contents): Move call to bfd_octets_per_byte into section loop. Provide section parameter to bfd_octets_per_byte. * coff-arm.c (coff_arm_reloc): Provide section parameter to bfd_octets_per_byte. * coff-i386.c (coff_i386_reloc): likewise. * coff-mips.c (mips_reflo_reloc): likewise. * coff-x86_64.c (coff_amd64_reloc): likewise. * cofflink.c (_bfd_coff_link_input_bfd): likewise. (_bfd_coff_reloc_link_order): likewise. * elf.c (_bfd_elf_section_offset): likewise. (_bfd_elf_make_section_from_shdr): likewise. Set SEC_ELF_OCTETS for sections with names .gnu.build.attributes, .debug*, .zdebug* and .note.gnu*. * elf32-msp430.c (rl78_sym_diff_handler): Provide section parameter to bfd_octets_per_byte. * elf32-nds.c (nds32_elf_get_relocated_section_contents): likewise. * elf32-ppc.c (ppc_elf_addr16_ha_reloc): likewise. * elf32-pru.c (pru_elf32_do_ldi32_relocate): likewise. * elf32-s12z.c (opru18_reloc): likewise. * elf32-sh.c (sh_elf_reloc): likewise. * elf32-spu.c (spu_elf_rel9): likewise. * elf32-xtensa.c (bfd_elf_xtensa_reloc): likewise * elf64-ppc.c (ppc64_elf_brtaken_reloc): likewise. (ppc64_elf_addr16_ha_reloc): likewise. (ppc64_elf_toc64_reloc): likewise. * elflink.c (bfd_elf_final_link): likewise. (bfd_elf_perform_complex_relocation): likewise. (elf_fixup_link_order): likewise. (elf_link_input_bfd): likewise. (elf_link_sort_relocs): likewise. (elf_reloc_link_order): likewise. (resolve_section): likewise. * linker.c (_bfd_generic_reloc_link_order): likewise. (bfd_generic_define_common_symbol): likewise. (default_data_link_order): likewise. (default_indirect_link_order): likewise. * srec.c (srec_set_section_contents): likewise. (srec_write_section): likewise. * syms.c (_bfd_stab_section_find_nearest_line): likewise. * reloc.c (_bfd_final_link_relocate): likewise. (bfd_generic_get_relocated_section_contents): likewise. (bfd_install_relocation): likewise. For section which have SEC_ELF_OCTETS set, multiply output_base and output_offset with bfd_octets_per_byte. (bfd_perform_relocation): likewise. include/ * coff/ti.h (GET_SCNHDR_SIZE, PUT_SCNHDR_SIZE, GET_SCN_SCNLEN), (PUT_SCN_SCNLEN): Adjust bfd_octets_per_byte calls. binutils/ * objdump.c (disassemble_data): Provide section parameter to bfd_octets_per_byte. (dump_section): likewise (dump_section_header): likewise. Show SEC_ELF_OCTETS flag if set. gas/ * as.h: Define SEC_OCTETS as SEC_ELF_OCTETS if OBJ_ELF. * dwarf2dbg.c: (dwarf2_finish): Set section flag SEC_OCTETS for .debug_line, .debug_info, .debug_abbrev, .debug_aranges, .debug_str and .debug_ranges sections. * write.c (maybe_generate_build_notes): Set section flag SEC_OCTETS for .gnu.build.attributes section. * frags.c (frag_now_fix): Don't divide by OCTETS_PER_BYTE if SEC_OCTETS is set. * symbols.c (resolve_symbol_value): Likewise. ld/ * ldexp.c (fold_name): Provide section parameter to bfd_octets_per_byte. * ldlang (init_opb): New argument s. Set opb_shift to 0 if SEC_ELF_OCTETS for the current section is set. (print_input_section): Pass current section to init_opb. (print_data_statement,print_reloc_statement, print_padding_statement): Likewise. (lang_check_section_addresses): Call init_opb for each section. (lang_size_sections_1,lang_size_sections_1, lang_do_assignments_1): Likewise. (lang_process): Pass NULL to init_opb.
2019-11-19PR25200, SIGSEGV in _bfd_elf_validate_relocAlan Modra1-1/+1
PR 25200 * reloc.c (bfd_default_reloc_type_lookup): Don't BFD_FAIL. * elf.c (_bfd_elf_validate_reloc): Don't segfault on NULL howto.
2019-11-18elf_backend_init_file_headerAlan Modra1-24/+5
This patch renames elf_backend_post_process_headers and moves the prep_headers code into the new function. Naming the backend functions elf_backend_init_file_header and elf_backend_modify_headers makes it clear which function is called first. * elf-bfd.h (struct elf_backend_data <elf_backend_init_file_header>): Rename from elf_backend_post_process_headers. (_bfd_elf_post_process_headers): Delete. (_bfd_elf_init_file_header): Declare. * elf.c (_bfd_elf_compute_section_file_positions): Call new function in place of prep_headers and elf_backend_post_process_headers. (_bfd_elf_init_file_header): Renamed from prep_headers with updated args and made global. Delete dead code. (_bfd_elf_post_process_headers): Delete. * elf32-arm.c (elf32_arm_init_file_header): Rename from elf32_arm_post_process_headers and call _bfd_elf_init_file_header. Return status. (elf_backend_init_file_header): Define. (elf_backend_post_process_headers): Don't define. * elf32-i386.c (elf_i386_fbsd_init_file_header): Similarly. * elf32-m68hc1x.c (elf32_m68hc11_init_file_header): Similarly. * elf32-metag.c (elf_metag_init_file_header): Similarly. * elf32-spu.c (spu_elf_init_file_header * elf32-visium.c (visium_elf_init_file_header * elf64-alpha.c (elf64_alpha_fbsd_init_file_header * elf64-hppa.c (elf64_hppa_init_file_header * elf64-ia64-vms.c (elf64_vms_init_file_header * elfnn-aarch64.c (elfNN_aarch64_init_file_header * elfnn-ia64.c (elfNN_hpux_init_file_header * elfxx-mips.c (_bfd_mips_init_file_header * elfxx-mips.h (_bfd_mips_post_process_headers): Delete. (_bfd_mips_init_file_header): Declare. (elf_backend_post_process_headers): Delete. (elf_backend_init_file_header): Define. * elfxx-target.h (elf_backend_post_process_headers): Delete. (elf_backend_init_file_header): Define and use. * elf32-m68hc12.c (elf_backend_init_file_header): Define. (elf_backend_post_process_headers): Don't define. * elf32-m68hc1x.h (elf32_m68hc11_post_process_headers): Delete. (elf32_m68hc11_init_file_header): Declare. * elf32-ppc.c (elf_backend_post_process_headers): Remove unnecessary undef.
2019-11-18elf_backend_modify_headersAlan Modra1-35/+41
This patch renames elf_backend_modify_program_headers and moves the elf.c code tweaking the ELF file header for -pie -Ttext-segment to a new function, _bfd_elf_modify_headers, which then becomes the default elf_backed_modify_headers and is called from any other target elf_backed_modify_headers. * elf-bfd.h (struct elf_backend_data <elf_backend_modify_headers>): Rename from elf_backend_modify_program_headers. (_bfd_elf_modify_headers): Declare. * elf.c (assign_file_positions_except_relocs): Set elf_program_header_size. Always call elf_backend_modify_headers. Extract code modifying file header.. (_bfd_elf_modify_headers): ..to here. New function. * elf32-arm.c (elf_backend_modify_headers): Renamed from elf_backend_modify_program_headers. * elf32-i386.c: Similarly. * elf64-x86-64.c: Similarly. * elfxx-target.h: Similarly. Default elf_backend_modify_headers to _bfd_elf_modify_headers. * elf-nacl.h (nacl_modify_headers): Rename from nacl_modify_program_headers. * elf-nacl.c (nacl_modify_headers): Rename from nacl_modify_program_headers and call _bfd_elf_modify_headers. * elf32-rx.c (elf32_rx_modify_headers): Similarly. * elf32-spu.c (spu_elf_modify_headers): Similarly. * elfnn-ia64.c (elfNN_ia64_modify_headers): Similarly. * elf32-sh.c (elf_backend_modify_program_headers): Don't undef.
2019-11-18PR25196, abort in rewrite_elf_program_headerAlan Modra1-4/+5
This patch introduces a new "sorry, cannot handle this file" bfd error status. The idea is to use this error in cases where bfd hasn't found a bfd_bad_value error, ie. an input file or set of options that are invalid, but rather an input file that is simply too difficult to process. Typically this might happen with fuzzed object files such as the one in the PR, a wildly improbable core file. Some things are just not worth wasting time over to fix "properly". PR 25196 * bfd.c (bfd_error_type): Add bfd_error_sorry. (bfd_errmsgs): Likewise. * elf.c (rewrite_elf_program_header): Don't abort on confused lma/alignment. Replace bfd_error_bad_value with bfd_error_sorry. (_bfd_elf_validate_reloc): Use bfd_error_sorry. (_bfd_elf_final_write_processing): Likewise. * bfd-in2.h: Regenerate.
2019-10-30Add the ability to the BFD library to read build-ids from core flies.Keith Seitz1-5/+18
* elf-bfd.h (elf_backend_data) <elf_backend_core_find_build_id>: New field. (_bfd_elf32_core_find_build_id, _bfd_elf64_core_find_build_id): New functions. (elf_read_notes): Add declaration. * elf.c (elf_read_notes): Move elf-bfd.h. (_bfd_elf_core_find_build_id): New function. (bfd_section_from_phdr): Scan core file PT_LOAD segments for build-id if none is known. (elf_parse_notes): For core files, scan for notes. * elfcore.h (elf_core_file_matches_executable_p): If both BFDs have identical build-ids, then they match. (_bfd_elf_core_find_build_id): New function. * elfxx-target.h (elf_backend_core_find_build_id): Define. (elfNN_bed): Add elf_backend_core_find_build_id.
2019-10-25PR4499, assign file positions assumes segment offsets increasingAlan Modra1-236/+260
This rewrites much of assign_file_positions_for_non_load_sections to allow objcopy and strip to handle cases like that in PR4499 where program headers were not in their usual position immediately after the ELF file header, and PT_LOAD headers were not sorted by paddr. PR 4499 include/ * elf/internal.h (struct elf_segment_map): Delete header_size. Add no_sort_lma and idx. bfd/ * elf-nacl.c (nacl_modify_segment_map): Set no_sort_lma for all PT_LOAD segments. * elf32-spu.c (spu_elf_modify_segment_map): Likewise on overlay PT_LOAD segments. * elf.c (elf_sort_segments): New function. (assign_file_positions_except_relocs): Use shortcuts to elfheader and elf_tdata. Seek to e_phoff not sizeof_ehdr to write program headers. Move PT_PHDR check.. (assign_file_positions_for_non_load_sections): ..and code setting PT_PHDR p_vaddr and p_paddr, and code setting __ehdr_start value.. (assign_file_positions_for_load_sections): ..to here. Sort PT_LOAD headers. Delete header_pad code. Use actual number of headers rather than allocated in calculating size for program headers. Don't assume program headers follow ELF file header. Simplify pt_load_count code. Only set "off" for PT_LOAD or PT_NOTE in cores. (rewrite_elf_program_header): Set p_vaddr_offset for segments that include file and program headers. (copy_elf_program_header): Likewise, replacing header_size code.
2019-10-14qsort: elf_sort_sections use of target_indexAlan Modra1-10/+11
elf_sort_sections tried to ensure a stable qsort by using target_index as the final comparison, but target_index hasn't been set by anything at the time elf_sort_sections was run. This patch arrange to have target_index set. * elf.c (_bfd_elf_map_sections_to_segments): Init target_index for sections about to be sorted. (assign_file_positions_for_load_sections): Likewise. (elf_sort_sections): Don't bother optimising both TOEND case. * elflink.c (bfd_elf_final_link): Reset target_index.
2019-10-03bfd, ld: add CTF section linkingNick Alcock1-11/+34
This is quite complicated because the CTF section's contents depend on the final contents of the symtab and strtab, because it has two sections whose contents are shuffled to be in 1:1 correspondence with the symtab, and an internal strtab that gets deduplicated against the ELF strtab (with offsets adjusted to point into the ELF strtab instead). It is also compressed if large enough, so its size depends on its contents! So we cannot construct it as early as most sections: we cannot even *begin* construction until after the symtab and strtab are finalized. Thankfully there is already one section treated similarly: compressed debugging sections: the only differences are that compressed debugging sections have extra handling to deal with their changing name if compressed (CTF sections are always called ".ctf" for now, though we have reserved ".ctf.*" against future use), and that compressed debugging sections have previously-uncompressed content which has to be stashed away for later compression, while CTF sections have no content at all until we generate it (very late). BFD also cannot do the link itself: libctf knows how to do it, and BFD cannot call libctf directly because libctf already depends on bfd for file I/O. So we have to use a pair of callbacks, one, examine_strtab, which allows a caller to examine the symtab and strtab after finalization (called from elf_link_swap_symbols_out(), right before the symtabs are written, and after the strtab has been finalized), and one which actually does the emission (called emit_ctf simply because it is grouped with a bunch of section-specific late-emission function calls at the bottom of bfd_elf_final_link, and a section-specific name seems best for that). emit_ctf is actually called *twice*: once from lang_process if the emulation suggests that this bfd target does not examine the symtab or strtab, and once via a bfd callback if it does. (This means that non-ELF targets still get CTF emitted, even though the late CTF emission stage is never called for them). v2: merged with non-ELF support patch: slight commit message adjustments. v3: do not spend time merging CTF, or crash, if the CTF section is explicitly discarded. Do not try to merge or compress CTF unless linking. v4: add CTF_COMPRESSION_THRESHOLD. Annul the freed input ctf_file_t's after writeout: set SEC_IN_MEMORY on the output contents so a future bfd enhancement knows it could free it. Add SEC_LINKER_CREATED | SEC_KEEP to avoid having to add .ctf to the linker script. Drop now-unnecessary ldlang.h-level elf-bfd.h include and hackery around it. Adapt to elf32.em->elf.em and elf-generic.em->ldelf*.c changes. v5: fix tabdamage. Drop #inclusions in .h files: include in .c files, .em files, and use struct forwards instead. Use bfd_section_is_ctf inline function rather than SECTION_IS_CTF macro. Move a few comments. * Makefile.def (dependencies): all-ld depends on all-libctf. * Makefile.in: Regenerated. include/ * bfdlink.h (elf_strtab_hash): New forward. (elf_sym_strtab): Likewise. (struct bfd_link_callbacks <examine_strtab>): New. (struct bfd_link_callbacks <emit_ctf>): Likewise. bfd/ * elf-bfd.h (bfd_section_is_ctf): New inline function. * elf.c (special_sections_c): Add ".ctf". (assign_file_positions_for_non_load_sections): Note that compressed debugging sections etc are not assigned here. Treat CTF sections like SEC_ELF_COMPRESS sections when is_linker_output: sh_offset -1. (assign_file_positions_except_relocs): Likewise. (find_section_in_list): Note that debugging and CTF sections, as well as reloc sections, are assigned later. (_bfd_elf_assign_file_positions_for_non_load): CTF sections get their size and contents updated. (_bfd_elf_set_section_contents): Skip CTF sections: unlike compressed sections, they have no uncompressed content to copy at this stage. * elflink.c (elf_link_swap_symbols_out): Call the examine_strtab callback right before the strtab is written out. (bfd_elf_final_link): Don't cache the section contents of CTF sections: they are not populated yet. Call the emit_ctf callback right at the end, after all the symbols and strings are flushed out. ld/ * ldlang.h: (struct lang_input_statement_struct): Add the_ctf. (struct elf_sym_strtab): Add forward. (struct elf_strtab_hash): Likewise. (ldlang_ctf_apply_strsym): Declare. (ldlang_write_ctf_late): Likewise. * ldemul.h (ldemul_emit_ctf_early): New. (ldemul_examine_strtab_for_ctf): Likewise. (ld_emulation_xfer_type) <emit_ctf_early>: Likewise. (ld_emulation_xfer_type) <examine_strtab_for_ctf>: Likewise. * ldemul.c (ldemul_emit_ctf_early): New. (ldemul_examine_strtab_for_ctf): Likewise. * ldlang.c: Include ctf-api.h. (CTF_COMPRESSION_THRESHOLD): New. (ctf_output): New. Initialized in... (ldlang_open_ctf): ... this new function. Open all the CTF sections in the input files: mark them non-loaded and empty so as not to copy their contents to the output, but linker-created so the section gets created in the target. (ldlang_merge_ctf): New, merge types via ctf_link_add_ctf and ctf_link. (ldlang_ctf_apply_strsym): New, an examine_strtab callback: wrap ldemul_examine_strtab_for_ctf. (lang_write_ctf): New, write out the CTF section. (ldlang_write_ctf_late): New, late call via bfd's emit_ctf hook. (lang_process): Call ldlang_open_ctf, ldlang_merge_ctf, and lang_write_ctf. * ldmain.c (link_callbacks): Add ldlang_ctf_apply_strsym, ldlang_write_ctf_late. * emultempl/aix.em: Add ctf-api.h. * emultempl/armcoff.em: Likewise. * emultempl/beos.em: Likewise. * emultempl/elf.em: Likewise. * emultempl/generic.em: Likewise. * emultempl/linux.em: Likewise. * emultempl/msp430.em: Likewise. * emultempl/pe.em: Likewise. * emultempl/pep.em: Likewise. * emultempl/ticoff.em: Likewise. * emultempl/vanilla.em: Likewise. * ldcref.c: Likewise. * ldctor.c: Likewise. * ldelf.c: Likewise. * ldelfgen.c: Likewise. * ldemul.c: Likewise. * ldexp.c: Likewise. * ldfile.c: Likewise. * ldgram.c: Likewise. * ldlex.l: Likewise. * ldmain.c: Likewise. * ldmisc.c: Likewise. * ldver.c: Likewise. * ldwrite.c: Likewise. * lexsup.c: Likewise. * mri.c: Likewise. * pe-dll.c: Likewise. * plugin.c: Likewise. * ldelfgen.c (ldelf_emit_ctf_early): New. (ldelf_examine_strtab_for_ctf): tell libctf about the symtab and strtab. (struct ctf_strsym_iter_cb_arg): New, state to do so. (ldelf_ctf_strtab_iter_cb): New: tell libctf about each string in the strtab in turn. (ldelf_ctf_symbols_iter_cb): New, tell libctf about each symbol in the symtab in turn. * ldelfgen.h (struct elf_sym_strtab): Add forward. (struct elf_strtab_hash): Likewise. (struct ctf_file): Likewise. (ldelf_emit_ctf_early): Declare. (ldelf_examine_strtab_for_ctf): Likewise. * emultempl/elf-generic.em (LDEMUL_EMIT_CTF_EARLY): Set it. (LDEMUL_EXAMINE_STRTAB_FOR_CTF): Likewise. * emultempl/aix.em (ld_${EMULATION_NAME}_emulation): Add emit_ctf_early and examine_strtab_for_ctf, NULL by default. * emultempl/armcoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/beos.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/elf.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/generic.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/linux.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/msp430.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pe.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/pep.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/ticoff.em (ld_${EMULATION_NAME}_emulation): Likewise. * emultempl/vanilla.em (ld_vanilla_emulation): Likewise. * Makefile.am: Pull in libctf (and zlib, a transitive requirement for compressed CTF section emission). Pass it on to DejaGNU. * configure.ac: Add AM_ZLIB. * aclocal.m4: Added zlib.m4. * Makefile.in: Regenerated. * testsuite/ld-bootstrap/bootstrap.exp: Use it when relinking ld.
2019-10-03libctf, bfd: fix ctf_bfdopen_ctfsect opening symbol and string sectionsNick Alcock1-1/+1
The code in ctf_bfdopen_ctfsect (which is the ultimate place where you end up if you use ctf_open to open a CTF file and pull in the ELF string and symbol tables) was written before it was possible to actually test it, since the linker was not written. Now it is, it turns out that the previous code was completely nonfunctional: it assumed that you could load the symbol table via bfd_section_from_elf_index (...,elf_onesymtab()) and the string table via bfd_section_from_elf_index on the sh_link. Unfortunately BFD loads neither of these sections in the conventional fashion it uses for most others: the symbol table is immediately converted into internal form (which is useless for our purposes, since we also have to work in the absence of BFD for readelf, etc) and the string table is loaded specially via bfd_elf_get_str_section which is private to bfd/elf.c. So make this function public, export it in elf-bfd.h, and use it from libctf, which does something similar to what bfd_elf_sym_name and bfd_elf_string_from_elf_section do. Similarly, load the symbol table manually using bfd_elf_get_elf_syms and throw away the internal form it generates for us (we never use it). BFD allocates the strtab for us via bfd_alloc, so we can leave BFD to deallocate it: we allocate the symbol table ourselves before calling bfd_elf_get_elf_syms, so we still have to free it. Also change the rules around what you are allowed to provide: It is useful to provide a string section but no symbol table, because CTF sections can legitimately have no function info or data object sections while relying on the ELF strtab for some of their strings. So allow that combination. v4: adjust to upstream changes. ctf_bfdopen_ctfsect's first parameter is potentially unused again (if BFD is not in use for this link due to not supporting an ELF target). v5: fix tabdamage. bfd/ * elf-bfd.h (bfd_elf_get_str_section): Add. * elf.c (bfd_elf_get_str_section): No longer static. libctf/ * ctf-open-bfd.c: Add <assert.h>. (ctf_bfdopen_ctfsect): Open string and symbol tables using techniques borrowed from bfd_elf_sym_name. (ctf_new_archive_internal): Improve comment. * ctf-archive.c (ctf_arc_close): Do not free the ctfi_strsect. * ctf-open.c (ctf_bufopen): Allow opening with a string section but no symbol section, but not vice versa.
2019-09-19bfd_section_* macrosAlan Modra1-11/+9
This large patch removes the unnecessary bfd parameter from various bfd section macros and functions. The bfd is hardly ever used and if needed for the bfd_set_section_* or bfd_rename_section functions can be found via section->owner except for the com, und, abs, and ind std_section special sections. Those sections shouldn't be modified anyway. The patch also removes various bfd_get_section_<field> macros, replacing their use with bfd_section_<field>, and adds bfd_set_section_lma. I've also fixed a minor bug in gas where compressed section renaming was done directly rather than calling bfd_rename_section. This would have broken bfd_get_section_by_name and similar functions, but that hardly mattered at such a late stage in gas processing. bfd/ * bfd-in.h (bfd_get_section_name, bfd_get_section_vma), (bfd_get_section_lma, bfd_get_section_alignment), (bfd_get_section_size, bfd_get_section_flags), (bfd_get_section_userdata): Delete. (bfd_section_name, bfd_section_size, bfd_section_vma), (bfd_section_lma, bfd_section_alignment): Lose bfd parameter. (bfd_section_flags, bfd_section_userdata): New. (bfd_is_com_section): Rename parameter. * section.c (bfd_set_section_userdata, bfd_set_section_vma), (bfd_set_section_alignment, bfd_set_section_flags, bfd_rename_section), (bfd_set_section_size): Delete bfd parameter, rename section parameter. (bfd_set_section_lma): New. * bfd-in2.h: Regenerate. * mach-o.c (bfd_mach_o_init_section_from_mach_o): Delete bfd param, update callers. * aoutx.h, * bfd.c, * coff-alpha.c, * coff-arm.c, * coff-mips.c, * coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c, * compress.c, * ecoff.c, * elf-eh-frame.c, * elf-hppa.h, * elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-properties.c, * elf-s390-common.c, * elf-vxworks.c, * elf.c, * elf32-arc.c, * elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c, * elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-csky.c, * elf32-d10v.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c, * elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c, * elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c, * elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c, * elf32-mcore.c, * elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c, * elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c, * elf32-nios2.c, * elf32-or1k.c, * elf32-ppc.c, * elf32-pru.c, * elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c, * elf32-score7.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c, * elf32-tilepro.c, * elf32-v850.c, * elf32-vax.c, * elf32-visium.c, * elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c, * elf64-bpf.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mmix.c, * elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c, * elflink.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c, * elfxx-tilegx.c, * elfxx-x86.c, * i386msdos.c, * linker.c, * mach-o.c, * mmo.c, * opncls.c, * pdp11.c, * pei-x86_64.c, * peicode.h, * reloc.c, * section.c, * syms.c, * vms-alpha.c, * xcofflink.c: Update throughout for bfd section macro and function changes. binutils/ * addr2line.c, * bucomm.c, * coffgrok.c, * dlltool.c, * nm.c, * objcopy.c, * objdump.c, * od-elf32_avr.c, * od-macho.c, * od-xcoff.c, * prdbg.c, * rdcoff.c, * rddbg.c, * rescoff.c, * resres.c, * size.c, * srconv.c, * strings.c, * windmc.c: Update throughout for bfd section macro and function changes. gas/ * as.c, * as.h, * dw2gencfi.c, * dwarf2dbg.c, * ecoff.c, * read.c, * stabs.c, * subsegs.c, * subsegs.h, * write.c, * config/obj-coff-seh.c, * config/obj-coff.c, * config/obj-ecoff.c, * config/obj-elf.c, * config/obj-macho.c, * config/obj-som.c, * config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c, * config/tc-arm.c, * config/tc-avr.c, * config/tc-bfin.c, * config/tc-bpf.c, * config/tc-d10v.c, * config/tc-d30v.c, * config/tc-epiphany.c, * config/tc-fr30.c, * config/tc-frv.c, * config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386.c, * config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c, * config/tc-lm32.c, * config/tc-m32c.c, * config/tc-m32r.c, * config/tc-m68hc11.c, * config/tc-mep.c, * config/tc-microblaze.c, * config/tc-mips.c, * config/tc-mmix.c, * config/tc-mn10200.c, * config/tc-mn10300.c, * config/tc-msp430.c, * config/tc-mt.c, * config/tc-nds32.c, * config/tc-or1k.c, * config/tc-ppc.c, * config/tc-pru.c, * config/tc-rl78.c, * config/tc-rx.c, * config/tc-s12z.c, * config/tc-s390.c, * config/tc-score.c, * config/tc-score7.c, * config/tc-sh.c, * config/tc-sparc.c, * config/tc-spu.c, * config/tc-tic4x.c, * config/tc-tic54x.c, * config/tc-tic6x.c, * config/tc-tilegx.c, * config/tc-tilepro.c, * config/tc-v850.c, * config/tc-visium.c, * config/tc-wasm32.c, * config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c, * config/tc-xtensa.c, * config/tc-z8k.c: Update throughout for bfd section macro and function changes. * write.c (compress_debug): Use bfd_rename_section. gdb/ * aarch64-linux-tdep.c, * arm-tdep.c, * auto-load.c, * coff-pe-read.c, * coffread.c, * corelow.c, * dbxread.c, * dicos-tdep.c, * dwarf2-frame.c, * dwarf2read.c, * elfread.c, * exec.c, * fbsd-tdep.c, * gcore.c, * gdb_bfd.c, * gdb_bfd.h, * hppa-tdep.c, * i386-cygwin-tdep.c, * i386-fbsd-tdep.c, * i386-linux-tdep.c, * jit.c, * linux-tdep.c, * machoread.c, * maint.c, * mdebugread.c, * minidebug.c, * mips-linux-tdep.c, * mips-sde-tdep.c, * mips-tdep.c, * mipsread.c, * nto-tdep.c, * objfiles.c, * objfiles.h, * osabi.c, * ppc-linux-tdep.c, * ppc64-tdep.c, * record-btrace.c, * record-full.c, * remote.c, * rs6000-aix-tdep.c, * rs6000-tdep.c, * s390-linux-tdep.c, * s390-tdep.c, * solib-aix.c, * solib-dsbt.c, * solib-frv.c, * solib-spu.c, * solib-svr4.c, * solib-target.c, * spu-linux-nat.c, * spu-tdep.c, * symfile-mem.c, * symfile.c, * symmisc.c, * symtab.c, * target.c, * windows-nat.c, * xcoffread.c, * cli/cli-dump.c, * compile/compile-object-load.c, * mi/mi-interp.c: Update throughout for bfd section macro and function changes. * gcore (gcore_create_callback): Use bfd_set_section_lma. * spu-tdep.c (spu_overlay_new_objfile): Likewise. gprof/ * corefile.c, * symtab.c: Update throughout for bfd section macro and function changes. ld/ * ldcref.c, * ldctor.c, * ldelf.c, * ldlang.c, * pe-dll.c, * emultempl/aarch64elf.em, * emultempl/aix.em, * emultempl/armcoff.em, * emultempl/armelf.em, * emultempl/cr16elf.em, * emultempl/cskyelf.em, * emultempl/m68hc1xelf.em, * emultempl/m68kelf.em, * emultempl/mipself.em, * emultempl/mmix-elfnmmo.em, * emultempl/mmo.em, * emultempl/msp430.em, * emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em, * emultempl/ppc64elf.em, * emultempl/xtensaelf.em: Update throughout for bfd section macro and function changes. libctf/ * ctf-open-bfd.c: Update throughout for bfd section macro changes. opcodes/ * arc-ext.c: Update throughout for bfd section macro changes. sim/ * common/sim-load.c, * common/sim-utils.c, * cris/sim-if.c, * erc32/func.c, * lm32/sim-if.c, * m32c/load.c, * m32c/trace.c, * m68hc11/interp.c, * ppc/hw_htab.c, * ppc/hw_init.c, * rl78/load.c, * rl78/trace.c, * rx/gdb-if.c, * rx/load.c, * rx/trace.c: Update throughout for bfd section macro changes.
2019-09-18bfd_asymbol_* macrosAlan Modra1-2/+2
The main point of this patch is to give bfd_get_section a better name, bfd_asymbol_section. bfd/ * bfd-in.h (bfd_asymbol_section): Rename from bfd_get_section. (bfd_get_output_section): Delete. (bfd_asymbol_base): Delete. (bfd_asymbol_section, bfd_asymbol_value, bfd_asymbol_name), (bfd_asymbol_bfd, bfd_asymbol_flavour): Tidy. (bfd_set_asymbol_name): New macro. * bfd-in2.h: Regenerate. * aout-cris.c: Update throughout to use bfd_asymbol_section. * aoutx.h: Likewise. * cofflink.c: Likewise. * dwarf2.c: Likewise. * ecoff.c: Likewise. * elf.c: Likewise. * elf32-arm.c: Likewise. * elf32-mips.c: Likewise. * elf32-score.c: Likewise. * elf32-score7.c: Likewise. * elfn32-mips.c: Likewise. * elfnn-aarch64.c: Likewise. * elfxx-mips.c: Likewise. * linker.c: Likewise. * pdp11.c: Likewise. * elf64-mmix.c (mmix_elf_reloc): Expand bfd_get_output_section. binutils/ * nm.c: Update bfd_get_section to bfd_asymbol_section throughout. * objcopy.c: Likewise. * objdump.c: Likewise. * rdcoff.c: Likewise. * objcopy.c (create_new_symbol): Use bfd_set_asymbol_name. (filter_symbols): Likewise. gas/ * symbols.c (S_IS_LOCAL): Update bfd_get_section to bfd_asymbol_section. gdb/ * arm-tdep.c (arm_record_special_symbol): Update bfd_get_section to bfd_asymbol_section. ld/ * ldcref.c (check_reloc_refs): Update bfd_get_section to bfd_asymbol_section.
2019-09-18Don't use bfd_get_* macro to set bfd fieldsAlan Modra1-2/+2
* aoutx.h (slurp_symbol_table): Don't set symcount using bfd_get macros. * pdp11.c (slurp_symbol_table): Likewise. * som.c (som_slurp_symbol_table): Likewise. * coff-ppc.c (ppc_bfd_coff_final_link): Likewise. * coffcode.h (coff_slurp_symbol_table): Likewise. * cofflink.c (_bfd_coff_final_link): Likewise. * ecoff.c (ecoff_slurp_symbolic_header): Likewise. (_bfd_ecoff_slurp_symbolic_info): Likewise. (_bfd_ecoff_slurp_symbol_table): Likewise. (_bfd_ecoff_bfd_final_link): Likewise. * elf.c (_bfd_elf_canonicalize_symtab): Likewise. * elflink.c (elf_link_output_symstrtab): Likewise. (bfd_elf_final_link): Likewise. * peicode.h (pe_ILF_build_a_bfd): Likewise. * xcofflink.c (_bfd_xcoff_bfd_final_link): Likewise. * aoutx.h (some_aout_object_p, slurp_symbol_table): Don't set start_address or symcount using bfd_get macros. * coffgen.c (coff_real_object_p): Likewise. * pdp11.c (some_aout_object_p, slurp_symbol_table): Likewise. * som.c (som_object_setup, som_slurp_symbol_table): Likewise. * elfcore.h (elf_core_file_p): Don't set start_address using bfd_get macro. * elf.c (_bfd_elf_canonicalize_dynamic_symtab): Don't set dynsymcount using bfd_get macro. * bfd.c (bfd_set_file_flags): Don't set flags using bfd_get macro. * linker.c (bfd_generic_link_read_symbols): Don't set outsymbols or symcount using bfd_get macros. (_bfd_generic_final_link, generic_add_output_symbol): Likewise. * syms.c (bfd_set_symtab): Likewise. * vms-alpha.c (alpha_vms_bfd_final_link): Likewise. * archive.c (do_slurp_bsd_armap): Don't set has_armap using bfd_has_map macro. (do_slurp_coff_armap, bfd_slurp_armap): Likewise. * archive64.c (_bfd_archive_64_bit_slurp_armap): Likewise. * coff-rs6000.c (_bfd_xcoff_slurp_armap): Likewise. * coff64-rs6000.c (xcoff64_slurp_armap): Likewise. * ecoff.c (_bfd_ecoff_slurp_armap): Likewise. * som.c (som_slurp_armap): Likewise.