Add elfxx-x86.h and elfxx-x86.c
Move common codes in elf32-i386.c and elf64-x86-64.c to elfxx-x86.c. * Makefile.am (BFD32_BACKENDS): Add elfxx-x86.lo. (BFD64_BACKENDS): Likewise. (BFD32_BACKENDS_CFILES): Add elfxx-x86.c. (BFD64_BACKENDS_CFILES): Likewise. * Makefile.in: Regenerated. * configure.ac (bfd_backends): Add elfxx-x86.lo together with elf32-i386.lo and elf64-x86-64.lo. * configure: Regenerated. * elf32-i386.c: Include "elfxx-x86.h" instead of "sysdep.h", "bfd.h", "bfdlink.h", "libbfd.h", "elf-bfd.h", "bfd_stdint.h", "objalloc.h" and "hashtab.h". (ELIMINATE_COPY_RELOCS): Removed. (UNDEFINED_WEAK_RESOLVED_TO_ZERO):Likewise. (SYMBOL_NO_COPYRELOC): Likewise. (elf_i386_link_hash_entry): Likewise. (GOT_UNKNOWN): Likewise. (GOT_NORMAL): Likewise. (GOT_TLS_GD): Likewise. (elf_i386_hash_entry): Likewise. (elf_i386_obj_tdata): Likewise. (elf_i386_tdata): Likewise. (elf_i386_local_got_tls_type): Likewise. (elf_i386_local_tlsdesc_gotent): Likewise. (elf_i386_hash_table): Likewise. (elf_i386_link_hash_newfunc): Likewise. (elf_i386_local_htab_hash): Likewise. (elf_i386_local_htab_eq): Likewise. (elf_i386_get_local_sym_hash): Likewise. (elf_i386_link_hash_table_free): Likewise. (elf_i386_copy_indirect_symbol): Likewise. (elf_i386_fixup_symbol): Likewise. (elf_i386_readonly_dynrelocs): Likewise. (elf_i386_always_size_sections): Likewise. (elf_i386_set_tls_module_base): Likewise. (elf_i386_dtpoff_base): Likewise. (compare_relocs): Likewise. (elf_i386_hash_symbol): Likewise. (elf_i386_parse_gnu_properties): Likewise. (elf_i386_merge_gnu_properties): Likewise. (elf_i386_link_check_relocs): Likewise. (elf_i386_merge_symbol_attribute): Likewise. (bfd_elf32_bfd_link_check_relocs): Likewise. (elf_backend_copy_indirect_symbol): Likewise. (elf_backend_always_size_sections): Likewise. (elf_backend_omit_section_dynsym): Likewise. (elf_backend_hash_symbol): Likewise. (elf_backend_fixup_symbol): Likewise. (elf_backend_parse_gnu_properties): Likewise. (elf_backend_merge_gnu_properties): Likewise. (elf_backend_merge_symbol_attribute): Likewise. (elf_i386_mkobject): Updated. (elf_i386_link_hash_table_create): Likewise. (elf_i386_check_tls_transition): Likewise. (elf_i386_tls_transition): Likewise. (elf_i386_convert_load_reloc): Likewise. (elf_i386_check_relocs): Likewise. (elf_i386_adjust_dynamic_symbol): Likewise. (elf_i386_allocate_dynrelocs): Likewise. (elf_i386_convert_load): Likewise. (elf_i386_size_dynamic_sections): Likewise. (elf_i386_relocate_section): Likewise. (elf_i386_finish_dynamic_symbol ): Likewise. (elf_i386_finish_dynamic_sections): Likewise. (elf_i386_output_arch_local_syms): Likewise. (elf_i386_get_synthetic_symtab): Likewise. (elf_i386_link_setup_gnu_properties): Likewise. (elf_i386_link_hash_table): Use elf_x86_link_hash_table, instead of elf_link_hash_table, as base. (elf_i386_next_tls_desc_index): New. (elf_i386_srelplt2): Likewise. (elf_i386_plt): Likewise. (elf_i386_lazy_plt): Likewise. (elf_i386_non_lazy_plt): Likewise. * elf32-x86-64.c: Include "elfxx-x86.h" instead of "sysdep.h", "bfd.h", "bfdlink.h", "libbfd.h", "elf-bfd.h", "bfd_stdint.h", "objalloc.h" and "hashtab.h". (ELIMINATE_COPY_RELOCS): Removed. (UNDEFINED_WEAK_RESOLVED_TO_ZERO):Likewise. (SYMBOL_NO_COPYRELOC): Likewise. (elf_x86_64_link_hash_entry): Likewise. (GOT_UNKNOWN): Likewise. (GOT_NORMAL): Likewise. (GOT_TLS_GD): Likewise. (elf_x86_64_hash_entry): Likewise. (elf_x86_64_obj_tdata): Likewise. (elf_x86_64_tdata): Likewise. (elf_x86_64_local_got_tls_type): Likewise. (elf_x86_64_local_tlsdesc_gotent): Likewise. (elf_x86_64_hash_table): Likewise. (elf_x86_64_link_hash_newfunc): Likewise. (elf_x86_64_local_htab_hash): Likewise. (elf_x86_64_local_htab_eq): Likewise. (elf_x86_64_get_local_sym_hash): Likewise. (elf_x86_64_link_hash_table_free): Likewise. (elf_x86_64_copy_indirect_symbol): Likewise. (elf_x86_64_fixup_symbol): Likewise. (elf_x86_64_readonly_dynrelocs): Likewise. (elf_x86_64_always_size_sections): Likewise. (elf_x86_64_set_tls_module_base): Likewise. (elf_x86_64_dtpoff_base): Likewise. (compare_relocs): Likewise. (elf_x86_64_merge_symbol_attribute): Likewise. (elf_x86_64_hash_symbol): Likewise. (elf_x86_64_parse_gnu_properties): Likewise. (elf_x86_64_merge_gnu_properties): Likewise. (elf_x86_64_link_check_relocs): Likewise. (elf_backend_copy_indirect_symbol): Likewise. (elf_backend_always_size_sections): Likewise. (bfd_elf64_bfd_link_check_relocs): Likewise. (elf_backend_merge_symbol_attribute): Likewise. (elf_backend_hash_symbol): Likewise. (elf_backend_omit_section_dynsym): Likewise. (elf_backend_fixup_symbol): Likewise. (elf_backend_parse_gnu_properties): Likewise. (elf_backend_merge_gnu_properties): Likewise. (bfd_elf32_bfd_link_check_relocs): Likewise. (elf_x86_64_mkobject): Updated. (elf_x86_64_link_hash_table_create): Likewise. (elf_x86_64_check_tls_transition): Likewise. (elf_x86_64_tls_transition): Likewise. (elf_x86_64_convert_load_reloc): Likewise. (elf_x86_64_check_relocs): Likewise. (elf_x86_64_adjust_dynamic_symbol): Likewise. (elf_x86_64_allocate_dynrelocs): Likewise. (elf_x86_64_convert_load): Likewise. (elf_x86_64_size_dynamic_sections): Likewise. (elf_x86_64_relocate_section): Likewise. (elf_x86_64_finish_dynamic_symbol ): Likewise. (elf_x86_64_finish_dynamic_sections): Likewise. (elf_x86_64_output_arch_local_syms): Likewise. (elf_x86_64_get_synthetic_symtab): Likewise. (elf_x86_64_link_setup_gnu_properties): Likewise. (elf_x86_64_link_hash_table): Use elf_x86_link_hash_table, instead of elf_link_hash_table, as base. (elf_x86_64_next_tls_desc_index): New. (elf_x86_64_srelplt2): Likewise. (elf_x86_64_plt): Likewise. (elf_x86_64_lazy_plt): Likewise. (elf_x86_64_non_lazy_plt): Likewise. * elfxx-x86.c: New file. * elfxx-x86.h: Likewise.
This commit is contained in:
H.J. Lu
parent
823cb06774
commit
0afcef5384
@ -346,6 +346,7 @@ BFD32_BACKENDS = \
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elf32-hppa.lo \
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elf32-i370.lo \
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elf32-i386.lo \
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elfxx-x86.lo \
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elf32-i860.lo \
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elf32-i960.lo \
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elf32-ip2k.lo \
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@ -542,6 +543,7 @@ BFD32_BACKENDS_CFILES = \
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elf32-hppa.c \
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elf32-i370.c \
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elf32-i386.c \
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elfxx-x86.c \
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elf32-i860.c \
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elf32-i960.c \
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elf32-ip2k.c \
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@ -699,6 +701,7 @@ BFD64_BACKENDS = \
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elf64-sparc.lo \
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elf64-tilegx.lo \
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elf64-x86-64.lo \
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elfxx-x86.lo \
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elf64.lo \
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mach-o-aarch64.lo \
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mach-o-x86-64.lo \
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@ -734,6 +737,7 @@ BFD64_BACKENDS_CFILES = \
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elf64-sparc.c \
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elf64-tilegx.c \
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elf64-x86-64.c \
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elfxx-x86.c \
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elf64.c \
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elfn32-mips.c \
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elfxx-aarch64.c \
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@ -680,6 +680,7 @@ BFD32_BACKENDS = \
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elf32-hppa.lo \
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elf32-i370.lo \
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elf32-i386.lo \
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elfxx-x86.lo \
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elf32-i860.lo \
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elf32-i960.lo \
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elf32-ip2k.lo \
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@ -876,6 +877,7 @@ BFD32_BACKENDS_CFILES = \
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elf32-hppa.c \
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elf32-i370.c \
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elf32-i386.c \
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elfxx-x86.c \
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elf32-i860.c \
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elf32-i960.c \
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elf32-ip2k.c \
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@ -1034,6 +1036,7 @@ BFD64_BACKENDS = \
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elf64-sparc.lo \
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elf64-tilegx.lo \
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elf64-x86-64.lo \
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elfxx-x86.lo \
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elf64.lo \
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mach-o-aarch64.lo \
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mach-o-x86-64.lo \
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@ -1069,6 +1072,7 @@ BFD64_BACKENDS_CFILES = \
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elf64-sparc.c \
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elf64-tilegx.c \
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elf64-x86-64.c \
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elfxx-x86.c \
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elf64.c \
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elfn32-mips.c \
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elfxx-aarch64.c \
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@ -1574,6 +1578,7 @@ distclean-compile:
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-riscv.Plo@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-sparc.Plo@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-tilegx.Plo@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/elfxx-x86.Plo@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/epoc-pe-arm.Plo@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/epoc-pei-arm.Plo@am__quote@
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@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/format.Plo@am__quote@
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34
bfd/configure
vendored
34
bfd/configure
vendored
@ -14391,17 +14391,17 @@ do
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i386_coff_go32_vec) tb="$tb coff-go32.lo $coff" ;;
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i386_coff_go32stubbed_vec) tb="$tb coff-stgo32.lo $coff" ;;
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i386_coff_lynx_vec) tb="$tb cf-i386lynx.lo lynx-core.lo $coff" ;;
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i386_elf32_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_fbsd_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_nacl_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_sol2_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_vxworks_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_fbsd_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_nacl_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_sol2_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_vxworks_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_mach_o_vec) tb="$tb mach-o-i386.lo" ;;
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i386_msdos_vec) tb="$tb i386msdos.lo" ;;
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i386_nlm32_vec) tb="$tb nlm32-i386.lo nlm32.lo nlm.lo" ;;
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i386_pe_vec) tb="$tb pe-i386.lo peigen.lo $coff" ;;
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i386_pei_vec) tb="$tb pei-i386.lo peigen.lo $coff" ;;
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iamcu_elf32_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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iamcu_elf32_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i860_coff_vec) tb="$tb coff-i860.lo $coff" ;;
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i860_elf32_vec) tb="$tb elf32-i860.lo elf32.lo $elf" ;;
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i860_elf32_le_vec) tb="$tb elf32-i860.lo elf32.lo $elf" ;;
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@ -14418,10 +14418,10 @@ do
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ieee_vec) tb="$tb ieee.lo" ;;
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ip2k_elf32_vec) tb="$tb elf32-ip2k.lo elf32.lo $elf" ;;
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iq2000_elf32_vec) tb="$tb elf32-iq2000.lo elf32.lo $elf" ;;
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k1om_elf64_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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k1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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l1om_elf64_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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k1om_elf64_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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k1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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l1om_elf64_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
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lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
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m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;;
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@ -14623,13 +14623,13 @@ do
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wasm32_elf32_vec) tb="$tb elf32-wasm32.lo elf32.lo $elf" ;;
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we32k_coff_vec) tb="$tb coff-we32k.lo $coffgen" ;;
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x86_64_coff_vec) tb="$tb coff-x86_64.lo $coff"; target_size=64 ;;
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x86_64_elf32_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
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x86_64_elf32_nacl_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
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x86_64_elf64_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_cloudabi_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_nacl_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_sol2_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf32_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
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x86_64_elf32_nacl_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
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x86_64_elf64_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_cloudabi_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_nacl_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_elf64_sol2_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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x86_64_mach_o_vec) tb="$tb mach-o-x86-64.lo" ;;
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x86_64_pe_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;;
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x86_64_pe_be_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;;
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@ -473,17 +473,17 @@ do
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i386_coff_go32_vec) tb="$tb coff-go32.lo $coff" ;;
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i386_coff_go32stubbed_vec) tb="$tb coff-stgo32.lo $coff" ;;
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i386_coff_lynx_vec) tb="$tb cf-i386lynx.lo lynx-core.lo $coff" ;;
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i386_elf32_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_fbsd_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_nacl_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_sol2_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_vxworks_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_fbsd_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_nacl_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_sol2_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_elf32_vxworks_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i386_mach_o_vec) tb="$tb mach-o-i386.lo" ;;
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i386_msdos_vec) tb="$tb i386msdos.lo" ;;
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i386_nlm32_vec) tb="$tb nlm32-i386.lo nlm32.lo nlm.lo" ;;
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i386_pe_vec) tb="$tb pe-i386.lo peigen.lo $coff" ;;
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i386_pei_vec) tb="$tb pei-i386.lo peigen.lo $coff" ;;
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iamcu_elf32_vec) tb="$tb elf32-i386.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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iamcu_elf32_vec) tb="$tb elf32-i386.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf-vxworks.lo elf32.lo $elf" ;;
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i860_coff_vec) tb="$tb coff-i860.lo $coff" ;;
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i860_elf32_vec) tb="$tb elf32-i860.lo elf32.lo $elf" ;;
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i860_elf32_le_vec) tb="$tb elf32-i860.lo elf32.lo $elf" ;;
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@ -500,10 +500,10 @@ do
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ieee_vec) tb="$tb ieee.lo" ;;
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ip2k_elf32_vec) tb="$tb elf32-ip2k.lo elf32.lo $elf" ;;
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iq2000_elf32_vec) tb="$tb elf32-iq2000.lo elf32.lo $elf" ;;
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k1om_elf64_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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k1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
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l1om_elf64_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
k1om_elf64_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
k1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
l1om_elf64_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
l1om_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
lm32_elf32_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
|
||||
lm32_elf32_fdpic_vec) tb="$tb elf32-lm32.lo elf32.lo $elf" ;;
|
||||
m32c_elf32_vec) tb="$tb elf32-m32c.lo elf32.lo $elf" ;;
|
||||
@ -705,13 +705,13 @@ do
|
||||
wasm32_elf32_vec) tb="$tb elf32-wasm32.lo elf32.lo $elf" ;;
|
||||
we32k_coff_vec) tb="$tb coff-we32k.lo $coffgen" ;;
|
||||
x86_64_coff_vec) tb="$tb coff-x86_64.lo $coff"; target_size=64 ;;
|
||||
x86_64_elf32_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf32_nacl_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_cloudabi_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_nacl_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_sol2_vec) tb="$tb elf64-x86-64.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf32_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf32_nacl_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo elf32.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_cloudabi_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_fbsd_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_nacl_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_elf64_sol2_vec) tb="$tb elf64-x86-64.lo elfxx-x86.lo elf-ifunc.lo elf-nacl.lo elf64.lo $elf"; target_size=64 ;;
|
||||
x86_64_mach_o_vec) tb="$tb mach-o-x86-64.lo" ;;
|
||||
x86_64_pe_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;;
|
||||
x86_64_pe_be_vec) tb="$tb pe-x86_64.lo pex64igen.lo $coff"; target_size=64 ;;
|
||||
|
||||
1139
bfd/elf32-i386.c
1139
bfd/elf32-i386.c
File diff suppressed because it is too large
Load Diff
1147
bfd/elf64-x86-64.c
1147
bfd/elf64-x86-64.c
File diff suppressed because it is too large
Load Diff
580
bfd/elfxx-x86.c
Normal file
580
bfd/elfxx-x86.c
Normal file
@ -0,0 +1,580 @@
|
||||
/* x86 specific support for ELF
|
||||
Copyright (C) 2017 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of BFD, the Binary File Descriptor library.
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
||||
MA 02110-1301, USA. */
|
||||
|
||||
#include "elfxx-x86.h"
|
||||
|
||||
/* _TLS_MODULE_BASE_ needs to be treated especially when linking
|
||||
executables. Rather than setting it to the beginning of the TLS
|
||||
section, we have to set it to the end. This function may be called
|
||||
multiple times, it is idempotent. */
|
||||
|
||||
void
|
||||
_bfd_x86_elf_set_tls_module_base (struct bfd_link_info *info)
|
||||
{
|
||||
struct elf_x86_link_hash_table *htab;
|
||||
struct bfd_link_hash_entry *base;
|
||||
const struct elf_backend_data *bed;
|
||||
|
||||
if (!bfd_link_executable (info))
|
||||
return;
|
||||
|
||||
bed = get_elf_backend_data (info->output_bfd);
|
||||
htab = elf_x86_hash_table (info, bed->target_id);
|
||||
if (htab == NULL)
|
||||
return;
|
||||
|
||||
base = htab->tls_module_base;
|
||||
if (base == NULL)
|
||||
return;
|
||||
|
||||
base->u.def.value = htab->elf.tls_size;
|
||||
}
|
||||
|
||||
/* Return the base VMA address which should be subtracted from real addresses
|
||||
when resolving @dtpoff relocation.
|
||||
This is PT_TLS segment p_vaddr. */
|
||||
|
||||
bfd_vma
|
||||
_bfd_x86_elf_dtpoff_base (struct bfd_link_info *info)
|
||||
{
|
||||
/* If tls_sec is NULL, we should have signalled an error already. */
|
||||
if (elf_hash_table (info)->tls_sec == NULL)
|
||||
return 0;
|
||||
return elf_hash_table (info)->tls_sec->vma;
|
||||
}
|
||||
|
||||
/* Find any dynamic relocs that apply to read-only sections. */
|
||||
|
||||
bfd_boolean
|
||||
_bfd_x86_elf_readonly_dynrelocs (struct elf_link_hash_entry *h,
|
||||
void *inf)
|
||||
{
|
||||
struct elf_x86_link_hash_entry *eh;
|
||||
struct elf_dyn_relocs *p;
|
||||
|
||||
/* Skip local IFUNC symbols. */
|
||||
if (h->forced_local && h->type == STT_GNU_IFUNC)
|
||||
return TRUE;
|
||||
|
||||
eh = (struct elf_x86_link_hash_entry *) h;
|
||||
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
||||
{
|
||||
asection *s = p->sec->output_section;
|
||||
|
||||
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
||||
{
|
||||
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
||||
|
||||
info->flags |= DF_TEXTREL;
|
||||
|
||||
if ((info->warn_shared_textrel && bfd_link_pic (info))
|
||||
|| info->error_textrel)
|
||||
/* xgettext:c-format */
|
||||
info->callbacks->einfo (_("%P: %B: warning: relocation against `%s' in readonly section `%A'\n"),
|
||||
p->sec->owner, h->root.root.string,
|
||||
p->sec);
|
||||
|
||||
/* Not an error, just cut short the traversal. */
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Find and/or create a hash entry for local symbol. */
|
||||
|
||||
struct elf_link_hash_entry *
|
||||
_bfd_elf_x86_get_local_sym_hash (struct elf_x86_link_hash_table *htab,
|
||||
bfd *abfd, const Elf_Internal_Rela *rel,
|
||||
bfd_boolean create)
|
||||
{
|
||||
struct elf_x86_link_hash_entry e, *ret;
|
||||
asection *sec = abfd->sections;
|
||||
hashval_t h = ELF_LOCAL_SYMBOL_HASH (sec->id,
|
||||
htab->r_sym (rel->r_info));
|
||||
void **slot;
|
||||
|
||||
e.elf.indx = sec->id;
|
||||
e.elf.dynstr_index = htab->r_sym (rel->r_info);
|
||||
slot = htab_find_slot_with_hash (htab->loc_hash_table, &e, h,
|
||||
create ? INSERT : NO_INSERT);
|
||||
|
||||
if (!slot)
|
||||
return NULL;
|
||||
|
||||
if (*slot)
|
||||
{
|
||||
ret = (struct elf_x86_link_hash_entry *) *slot;
|
||||
return &ret->elf;
|
||||
}
|
||||
|
||||
ret = (struct elf_x86_link_hash_entry *)
|
||||
objalloc_alloc ((struct objalloc *) htab->loc_hash_memory,
|
||||
sizeof (struct elf_x86_link_hash_entry));
|
||||
if (ret)
|
||||
{
|
||||
memset (ret, 0, sizeof (*ret));
|
||||
ret->elf.indx = sec->id;
|
||||
ret->elf.dynstr_index = htab->r_sym (rel->r_info);
|
||||
ret->elf.dynindx = -1;
|
||||
ret->plt_got.offset = (bfd_vma) -1;
|
||||
*slot = ret;
|
||||
}
|
||||
return &ret->elf;
|
||||
}
|
||||
|
||||
/* Create an entry in a x86 ELF linker hash table. NB: THIS MUST BE IN
|
||||
SYNC WITH _bfd_elf_link_hash_newfunc. */
|
||||
|
||||
struct bfd_hash_entry *
|
||||
_bfd_x86_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
|
||||
struct bfd_hash_table *table,
|
||||
const char *string)
|
||||
{
|
||||
/* Allocate the structure if it has not already been allocated by a
|
||||
subclass. */
|
||||
if (entry == NULL)
|
||||
{
|
||||
entry = (struct bfd_hash_entry *)
|
||||
bfd_hash_allocate (table,
|
||||
sizeof (struct elf_x86_link_hash_entry));
|
||||
if (entry == NULL)
|
||||
return entry;
|
||||
}
|
||||
|
||||
/* Call the allocation method of the superclass. */
|
||||
entry = _bfd_link_hash_newfunc (entry, table, string);
|
||||
if (entry != NULL)
|
||||
{
|
||||
struct elf_x86_link_hash_entry *eh
|
||||
= (struct elf_x86_link_hash_entry *) entry;
|
||||
struct elf_link_hash_table *htab
|
||||
= (struct elf_link_hash_table *) table;
|
||||
|
||||
memset (&eh->elf.size, 0,
|
||||
(sizeof (struct elf_x86_link_hash_entry)
|
||||
- offsetof (struct elf_link_hash_entry, size)));
|
||||
/* Set local fields. */
|
||||
eh->elf.indx = -1;
|
||||
eh->elf.dynindx = -1;
|
||||
eh->elf.got = htab->init_got_refcount;
|
||||
eh->elf.plt = htab->init_plt_refcount;
|
||||
/* Assume that we have been called by a non-ELF symbol reader.
|
||||
This flag is then reset by the code which reads an ELF input
|
||||
file. This ensures that a symbol created by a non-ELF symbol
|
||||
reader will have the flag set correctly. */
|
||||
eh->elf.non_elf = 1;
|
||||
eh->plt_second.offset = (bfd_vma) -1;
|
||||
eh->plt_got.offset = (bfd_vma) -1;
|
||||
eh->tlsdesc_got = (bfd_vma) -1;
|
||||
}
|
||||
|
||||
return entry;
|
||||
}
|
||||
|
||||
/* Compute a hash of a local hash entry. We use elf_link_hash_entry
|
||||
for local symbol so that we can handle local STT_GNU_IFUNC symbols
|
||||
as global symbol. We reuse indx and dynstr_index for local symbol
|
||||
hash since they aren't used by global symbols in this backend. */
|
||||
|
||||
hashval_t
|
||||
_bfd_x86_elf_local_htab_hash (const void *ptr)
|
||||
{
|
||||
struct elf_link_hash_entry *h
|
||||
= (struct elf_link_hash_entry *) ptr;
|
||||
return ELF_LOCAL_SYMBOL_HASH (h->indx, h->dynstr_index);
|
||||
}
|
||||
|
||||
/* Compare local hash entries. */
|
||||
|
||||
int
|
||||
_bfd_x86_elf_local_htab_eq (const void *ptr1, const void *ptr2)
|
||||
{
|
||||
struct elf_link_hash_entry *h1
|
||||
= (struct elf_link_hash_entry *) ptr1;
|
||||
struct elf_link_hash_entry *h2
|
||||
= (struct elf_link_hash_entry *) ptr2;
|
||||
|
||||
return h1->indx == h2->indx && h1->dynstr_index == h2->dynstr_index;
|
||||
}
|
||||
|
||||
/* Destroy an x86 ELF linker hash table. */
|
||||
|
||||
void
|
||||
_bfd_x86_elf_link_hash_table_free (bfd *obfd)
|
||||
{
|
||||
struct elf_x86_link_hash_table *htab
|
||||
= (struct elf_x86_link_hash_table *) obfd->link.hash;
|
||||
|
||||
if (htab->loc_hash_table)
|
||||
htab_delete (htab->loc_hash_table);
|
||||
if (htab->loc_hash_memory)
|
||||
objalloc_free ((struct objalloc *) htab->loc_hash_memory);
|
||||
_bfd_elf_link_hash_table_free (obfd);
|
||||
}
|
||||
|
||||
/* Sort relocs into address order. */
|
||||
|
||||
int
|
||||
_bfd_x86_elf_compare_relocs (const void *ap, const void *bp)
|
||||
{
|
||||
const arelent *a = * (const arelent **) ap;
|
||||
const arelent *b = * (const arelent **) bp;
|
||||
|
||||
if (a->address > b->address)
|
||||
return 1;
|
||||
else if (a->address < b->address)
|
||||
return -1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
bfd_boolean
|
||||
_bfd_x86_elf_link_check_relocs (bfd *abfd, struct bfd_link_info *info)
|
||||
{
|
||||
if (!bfd_link_relocatable (info))
|
||||
{
|
||||
/* Check for __tls_get_addr reference. */
|
||||
struct elf_x86_link_hash_table *htab;
|
||||
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
|
||||
htab = elf_x86_hash_table (info, bed->target_id);
|
||||
if (htab)
|
||||
{
|
||||
struct elf_link_hash_entry *h
|
||||
= elf_link_hash_lookup (elf_hash_table (info),
|
||||
htab->tls_get_addr,
|
||||
FALSE, FALSE, FALSE);
|
||||
if (h != NULL)
|
||||
((struct elf_x86_link_hash_entry *) h)->tls_get_addr = 1;
|
||||
}
|
||||
}
|
||||
|
||||
/* Invoke the regular ELF backend linker to do all the work. */
|
||||
return _bfd_elf_link_check_relocs (abfd, info);
|
||||
}
|
||||
|
||||
bfd_boolean
|
||||
_bfd_x86_elf_always_size_sections (bfd *output_bfd,
|
||||
struct bfd_link_info *info)
|
||||
{
|
||||
asection *tls_sec = elf_hash_table (info)->tls_sec;
|
||||
|
||||
if (tls_sec)
|
||||
{
|
||||
struct elf_link_hash_entry *tlsbase;
|
||||
|
||||
tlsbase = elf_link_hash_lookup (elf_hash_table (info),
|
||||
"_TLS_MODULE_BASE_",
|
||||
FALSE, FALSE, FALSE);
|
||||
|
||||
if (tlsbase && tlsbase->type == STT_TLS)
|
||||
{
|
||||
struct elf_x86_link_hash_table *htab;
|
||||
struct bfd_link_hash_entry *bh = NULL;
|
||||
const struct elf_backend_data *bed
|
||||
= get_elf_backend_data (output_bfd);
|
||||
|
||||
htab = elf_x86_hash_table (info, bed->target_id);
|
||||
if (htab == NULL)
|
||||
return FALSE;
|
||||
|
||||
if (!(_bfd_generic_link_add_one_symbol
|
||||
(info, output_bfd, "_TLS_MODULE_BASE_", BSF_LOCAL,
|
||||
tls_sec, 0, NULL, FALSE,
|
||||
bed->collect, &bh)))
|
||||
return FALSE;
|
||||
|
||||
htab->tls_module_base = bh;
|
||||
|
||||
tlsbase = (struct elf_link_hash_entry *)bh;
|
||||
tlsbase->def_regular = 1;
|
||||
tlsbase->other = STV_HIDDEN;
|
||||
tlsbase->root.linker_def = 1;
|
||||
(*bed->elf_backend_hide_symbol) (info, tlsbase, TRUE);
|
||||
}
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
void
|
||||
_bfd_x86_elf_merge_symbol_attribute (struct elf_link_hash_entry *h,
|
||||
const Elf_Internal_Sym *isym,
|
||||
bfd_boolean definition,
|
||||
bfd_boolean dynamic ATTRIBUTE_UNUSED)
|
||||
{
|
||||
if (definition)
|
||||
{
|
||||
struct elf_x86_link_hash_entry *eh
|
||||
= (struct elf_x86_link_hash_entry *) h;
|
||||
eh->def_protected = (ELF_ST_VISIBILITY (isym->st_other)
|
||||
== STV_PROTECTED);
|
||||
}
|
||||
}
|
||||
|
||||
/* Copy the extra info we tack onto an elf_link_hash_entry. */
|
||||
|
||||
void
|
||||
_bfd_x86_elf_copy_indirect_symbol (struct bfd_link_info *info,
|
||||
struct elf_link_hash_entry *dir,
|
||||
struct elf_link_hash_entry *ind)
|
||||
{
|
||||
struct elf_x86_link_hash_entry *edir, *eind;
|
||||
|
||||
edir = (struct elf_x86_link_hash_entry *) dir;
|
||||
eind = (struct elf_x86_link_hash_entry *) ind;
|
||||
|
||||
if (eind->dyn_relocs != NULL)
|
||||
{
|
||||
if (edir->dyn_relocs != NULL)
|
||||
{
|
||||
struct elf_dyn_relocs **pp;
|
||||
struct elf_dyn_relocs *p;
|
||||
|
||||
/* Add reloc counts against the indirect sym to the direct sym
|
||||
list. Merge any entries against the same section. */
|
||||
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
|
||||
{
|
||||
struct elf_dyn_relocs *q;
|
||||
|
||||
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
||||
if (q->sec == p->sec)
|
||||
{
|
||||
q->pc_count += p->pc_count;
|
||||
q->count += p->count;
|
||||
*pp = p->next;
|
||||
break;
|
||||
}
|
||||
if (q == NULL)
|
||||
pp = &p->next;
|
||||
}
|
||||
*pp = edir->dyn_relocs;
|
||||
}
|
||||
|
||||
edir->dyn_relocs = eind->dyn_relocs;
|
||||
eind->dyn_relocs = NULL;
|
||||
}
|
||||
|
||||
if (ind->root.type == bfd_link_hash_indirect
|
||||
&& dir->got.refcount <= 0)
|
||||
{
|
||||
edir->tls_type = eind->tls_type;
|
||||
eind->tls_type = GOT_UNKNOWN;
|
||||
}
|
||||
|
||||
/* Copy gotoff_ref so that elf_i386_adjust_dynamic_symbol will
|
||||
generate a R_386_COPY reloc. */
|
||||
edir->gotoff_ref |= eind->gotoff_ref;
|
||||
|
||||
edir->has_got_reloc |= eind->has_got_reloc;
|
||||
edir->has_non_got_reloc |= eind->has_non_got_reloc;
|
||||
|
||||
if (ELIMINATE_COPY_RELOCS
|
||||
&& ind->root.type != bfd_link_hash_indirect
|
||||
&& dir->dynamic_adjusted)
|
||||
{
|
||||
/* If called to transfer flags for a weakdef during processing
|
||||
of elf_adjust_dynamic_symbol, don't copy non_got_ref.
|
||||
We clear it ourselves for ELIMINATE_COPY_RELOCS. */
|
||||
if (dir->versioned != versioned_hidden)
|
||||
dir->ref_dynamic |= ind->ref_dynamic;
|
||||
dir->ref_regular |= ind->ref_regular;
|
||||
dir->ref_regular_nonweak |= ind->ref_regular_nonweak;
|
||||
dir->needs_plt |= ind->needs_plt;
|
||||
dir->pointer_equality_needed |= ind->pointer_equality_needed;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (eind->func_pointer_refcount > 0)
|
||||
{
|
||||
edir->func_pointer_refcount += eind->func_pointer_refcount;
|
||||
eind->func_pointer_refcount = 0;
|
||||
}
|
||||
|
||||
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
|
||||
}
|
||||
}
|
||||
|
||||
/* Remove undefined weak symbol from the dynamic symbol table if it
|
||||
is resolved to 0. */
|
||||
|
||||
bfd_boolean
|
||||
_bfd_x86_elf_fixup_symbol (struct bfd_link_info *info,
|
||||
struct elf_link_hash_entry *h)
|
||||
{
|
||||
if (h->dynindx != -1)
|
||||
{
|
||||
const struct elf_backend_data *bed
|
||||
= get_elf_backend_data (info->output_bfd);
|
||||
if (UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
|
||||
bed->target_id,
|
||||
elf_x86_hash_entry (h)->has_got_reloc,
|
||||
elf_x86_hash_entry (h)))
|
||||
{
|
||||
h->dynindx = -1;
|
||||
_bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
|
||||
h->dynstr_index);
|
||||
}
|
||||
}
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */
|
||||
|
||||
bfd_boolean
|
||||
_bfd_x86_elf_hash_symbol (struct elf_link_hash_entry *h)
|
||||
{
|
||||
if (h->plt.offset != (bfd_vma) -1
|
||||
&& !h->def_regular
|
||||
&& !h->pointer_equality_needed)
|
||||
return FALSE;
|
||||
|
||||
return _bfd_elf_hash_symbol (h);
|
||||
}
|
||||
|
||||
/* Parse x86 GNU properties. */
|
||||
|
||||
enum elf_property_kind
|
||||
_bfd_x86_elf_parse_gnu_properties (bfd *abfd, unsigned int type,
|
||||
bfd_byte *ptr, unsigned int datasz)
|
||||
{
|
||||
elf_property *prop;
|
||||
|
||||
switch (type)
|
||||
{
|
||||
case GNU_PROPERTY_X86_ISA_1_USED:
|
||||
case GNU_PROPERTY_X86_ISA_1_NEEDED:
|
||||
case GNU_PROPERTY_X86_FEATURE_1_AND:
|
||||
if (datasz != 4)
|
||||
{
|
||||
_bfd_error_handler
|
||||
((type == GNU_PROPERTY_X86_ISA_1_USED
|
||||
? _("error: %B: <corrupt x86 ISA used size: 0x%x>")
|
||||
: (type == GNU_PROPERTY_X86_ISA_1_NEEDED
|
||||
? _("error: %B: <corrupt x86 ISA needed size: 0x%x>")
|
||||
: _("error: %B: <corrupt x86 feature size: 0x%x>"))),
|
||||
abfd, datasz);
|
||||
return property_corrupt;
|
||||
}
|
||||
prop = _bfd_elf_get_property (abfd, type, datasz);
|
||||
/* Combine properties of the same type. */
|
||||
prop->u.number |= bfd_h_get_32 (abfd, ptr);
|
||||
prop->pr_kind = property_number;
|
||||
break;
|
||||
|
||||
default:
|
||||
return property_ignored;
|
||||
}
|
||||
|
||||
return property_number;
|
||||
}
|
||||
|
||||
/* Merge x86 GNU property BPROP with APROP. If APROP isn't NULL,
|
||||
return TRUE if APROP is updated. Otherwise, return TRUE if BPROP
|
||||
should be merged with ABFD. */
|
||||
|
||||
bfd_boolean
|
||||
_bfd_x86_elf_merge_gnu_properties (struct bfd_link_info *info,
|
||||
bfd *abfd ATTRIBUTE_UNUSED,
|
||||
elf_property *aprop,
|
||||
elf_property *bprop)
|
||||
{
|
||||
unsigned int number, features;
|
||||
bfd_boolean updated = FALSE;
|
||||
unsigned int pr_type = aprop != NULL ? aprop->pr_type : bprop->pr_type;
|
||||
|
||||
switch (pr_type)
|
||||
{
|
||||
case GNU_PROPERTY_X86_ISA_1_USED:
|
||||
case GNU_PROPERTY_X86_ISA_1_NEEDED:
|
||||
if (aprop != NULL && bprop != NULL)
|
||||
{
|
||||
number = aprop->u.number;
|
||||
aprop->u.number = number | bprop->u.number;
|
||||
updated = number != (unsigned int) aprop->u.number;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Return TRUE if APROP is NULL to indicate that BPROP should
|
||||
be added to ABFD. */
|
||||
updated = aprop == NULL;
|
||||
}
|
||||
break;
|
||||
|
||||
case GNU_PROPERTY_X86_FEATURE_1_AND:
|
||||
/* Only one of APROP and BPROP can be NULL:
|
||||
1. APROP & BPROP when both APROP and BPROP aren't NULL.
|
||||
2. If APROP is NULL, remove x86 feature.
|
||||
3. Otherwise, do nothing.
|
||||
*/
|
||||
if (aprop != NULL && bprop != NULL)
|
||||
{
|
||||
features = 0;
|
||||
if (info->ibt)
|
||||
features = GNU_PROPERTY_X86_FEATURE_1_IBT;
|
||||
if (info->shstk)
|
||||
features |= GNU_PROPERTY_X86_FEATURE_1_SHSTK;
|
||||
number = aprop->u.number;
|
||||
/* Add GNU_PROPERTY_X86_FEATURE_1_IBT and
|
||||
GNU_PROPERTY_X86_FEATURE_1_SHSTK. */
|
||||
aprop->u.number = (number & bprop->u.number) | features;
|
||||
updated = number != (unsigned int) aprop->u.number;
|
||||
/* Remove the property if all feature bits are cleared. */
|
||||
if (aprop->u.number == 0)
|
||||
aprop->pr_kind = property_remove;
|
||||
}
|
||||
else
|
||||
{
|
||||
features = 0;
|
||||
if (info->ibt)
|
||||
features = GNU_PROPERTY_X86_FEATURE_1_IBT;
|
||||
if (info->shstk)
|
||||
features |= GNU_PROPERTY_X86_FEATURE_1_SHSTK;
|
||||
if (features)
|
||||
{
|
||||
/* Add GNU_PROPERTY_X86_FEATURE_1_IBT and
|
||||
GNU_PROPERTY_X86_FEATURE_1_SHSTK. */
|
||||
if (aprop != NULL)
|
||||
{
|
||||
number = aprop->u.number;
|
||||
aprop->u.number = number | features;
|
||||
updated = number != (unsigned int) aprop->u.number;
|
||||
}
|
||||
else
|
||||
{
|
||||
bprop->u.number |= features;
|
||||
updated = TRUE;
|
||||
}
|
||||
}
|
||||
else if (aprop != NULL)
|
||||
{
|
||||
aprop->pr_kind = property_remove;
|
||||
updated = TRUE;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
/* Never should happen. */
|
||||
abort ();
|
||||
}
|
||||
|
||||
return updated;
|
||||
}
|
||||
283
bfd/elfxx-x86.h
Normal file
283
bfd/elfxx-x86.h
Normal file
@ -0,0 +1,283 @@
|
||||
/* x86 specific support for ELF
|
||||
Copyright (C) 2017 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of BFD, the Binary File Descriptor library.
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
||||
MA 02110-1301, USA. */
|
||||
|
||||
#include "sysdep.h"
|
||||
#include "bfd.h"
|
||||
#include "bfdlink.h"
|
||||
#include "libbfd.h"
|
||||
#include "elf-bfd.h"
|
||||
#include "bfd_stdint.h"
|
||||
#include "objalloc.h"
|
||||
#include "hashtab.h"
|
||||
|
||||
/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
|
||||
copying dynamic variables from a shared lib into an app's dynbss
|
||||
section, and instead use a dynamic relocation to point into the
|
||||
shared lib. */
|
||||
#define ELIMINATE_COPY_RELOCS 1
|
||||
|
||||
#define elf_x86_hash_table(p, id) \
|
||||
(elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) == (id) \
|
||||
? ((struct elf_x86_link_hash_table *) ((p)->hash)) : NULL)
|
||||
|
||||
/* Is a undefined weak symbol which is resolved to 0. Reference to an
|
||||
undefined weak symbol is resolved to 0 when building executable if
|
||||
it isn't dynamic and
|
||||
1. Has non-GOT/non-PLT relocations in text section. Or
|
||||
2. Has no GOT/PLT relocation.
|
||||
Local undefined weak symbol is always resolved to 0.
|
||||
*/
|
||||
#define UNDEFINED_WEAK_RESOLVED_TO_ZERO(INFO, ID, GOT_RELOC, EH) \
|
||||
((EH)->elf.root.type == bfd_link_hash_undefweak \
|
||||
&& ((EH)->elf.forced_local \
|
||||
|| (bfd_link_executable (INFO) \
|
||||
&& (elf_x86_hash_table ((INFO), (ID))->interp == NULL \
|
||||
|| !(GOT_RELOC) \
|
||||
|| (EH)->has_non_got_reloc \
|
||||
|| !(INFO)->dynamic_undefined_weak))))
|
||||
|
||||
/* Should copy relocation be generated for a symbol. Don't generate
|
||||
copy relocation against a protected symbol defined in a shared
|
||||
object with GNU_PROPERTY_NO_COPY_ON_PROTECTED. */
|
||||
#define SYMBOL_NO_COPYRELOC(INFO, EH) \
|
||||
((EH)->def_protected \
|
||||
&& ((EH)->elf.root.type == bfd_link_hash_defined \
|
||||
|| (EH)->elf.root.type == bfd_link_hash_defweak) \
|
||||
&& elf_has_no_copy_on_protected ((EH)->elf.root.u.def.section->owner) \
|
||||
&& ((EH)->elf.root.u.def.section->owner->flags & DYNAMIC) != 0 \
|
||||
&& ((EH)->elf.root.u.def.section->flags & SEC_CODE) == 0)
|
||||
|
||||
/* x86 ELF linker hash entry. */
|
||||
|
||||
struct elf_x86_link_hash_entry
|
||||
{
|
||||
struct elf_link_hash_entry elf;
|
||||
|
||||
/* Track dynamic relocs copied for this symbol. */
|
||||
struct elf_dyn_relocs *dyn_relocs;
|
||||
|
||||
unsigned char tls_type;
|
||||
|
||||
/* TRUE if symbol has GOT or PLT relocations. */
|
||||
unsigned int has_got_reloc : 1;
|
||||
|
||||
/* TRUE if symbol has non-GOT/non-PLT relocations in text sections. */
|
||||
unsigned int has_non_got_reloc : 1;
|
||||
|
||||
/* Don't call finish_dynamic_symbol on this symbol. */
|
||||
unsigned int no_finish_dynamic_symbol : 1;
|
||||
|
||||
/* TRUE if symbol is __tls_get_addr. */
|
||||
unsigned int tls_get_addr : 1;
|
||||
|
||||
/* TRUE if symbol is defined as a protected symbol. */
|
||||
unsigned int def_protected : 1;
|
||||
|
||||
/* Symbol is referenced by R_386_GOTOFF relocation. This is only used
|
||||
by i386. */
|
||||
unsigned int gotoff_ref : 1;
|
||||
|
||||
/* TRUE if a weak symbol with a real definition needs a copy reloc.
|
||||
When there is a weak symbol with a real definition, the processor
|
||||
independent code will have arranged for us to see the real
|
||||
definition first. We need to copy the needs_copy bit from the
|
||||
real definition and check it when allowing copy reloc in PIE. This
|
||||
is only used by x86-64. */
|
||||
unsigned int needs_copy : 1;
|
||||
|
||||
/* Reference count of C/C++ function pointer relocations in read-write
|
||||
section which can be resolved at run-time. */
|
||||
bfd_signed_vma func_pointer_refcount;
|
||||
|
||||
/* Information about the GOT PLT entry. Filled when there are both
|
||||
GOT and PLT relocations against the same function. */
|
||||
union gotplt_union plt_got;
|
||||
|
||||
/* Information about the second PLT entry. */
|
||||
union gotplt_union plt_second;
|
||||
|
||||
/* Offset of the GOTPLT entry reserved for the TLS descriptor,
|
||||
starting at the end of the jump table. */
|
||||
bfd_vma tlsdesc_got;
|
||||
};
|
||||
|
||||
/* The first 3 values in tls_type of x86 ELF linker hash entry. */
|
||||
#define GOT_UNKNOWN 0
|
||||
#define GOT_NORMAL 1
|
||||
#define GOT_TLS_GD 2
|
||||
|
||||
#define elf_x86_hash_entry(ent) \
|
||||
((struct elf_x86_link_hash_entry *)(ent))
|
||||
|
||||
/* x86 ELF linker hash table. */
|
||||
|
||||
struct elf_x86_link_hash_table
|
||||
{
|
||||
struct elf_link_hash_table elf;
|
||||
|
||||
/* Short-cuts to get to dynamic linker sections. */
|
||||
asection *interp;
|
||||
asection *plt_eh_frame;
|
||||
asection *plt_second;
|
||||
asection *plt_second_eh_frame;
|
||||
asection *plt_got;
|
||||
asection *plt_got_eh_frame;
|
||||
|
||||
union
|
||||
{
|
||||
bfd_signed_vma refcount;
|
||||
bfd_vma offset;
|
||||
} tls_ld_or_ldm_got;
|
||||
|
||||
/* The amount of space used by the jump slots in the GOT. */
|
||||
bfd_vma sgotplt_jump_table_size;
|
||||
|
||||
/* Small local sym cache. */
|
||||
struct sym_cache sym_cache;
|
||||
|
||||
/* _TLS_MODULE_BASE_ symbol. */
|
||||
struct bfd_link_hash_entry *tls_module_base;
|
||||
|
||||
/* Used by local STT_GNU_IFUNC symbols. */
|
||||
htab_t loc_hash_table;
|
||||
void * loc_hash_memory;
|
||||
|
||||
/* The offset into splt of the PLT entry for the TLS descriptor
|
||||
resolver. Special values are 0, if not necessary (or not found
|
||||
to be necessary yet), and -1 if needed but not determined
|
||||
yet. */
|
||||
bfd_vma tlsdesc_plt;
|
||||
|
||||
/* The offset into sgot of the GOT entry used by the PLT entry
|
||||
above. */
|
||||
bfd_vma tlsdesc_got;
|
||||
|
||||
/* The index of the next R_X86_64_JUMP_SLOT entry in .rela.plt. */
|
||||
bfd_vma next_jump_slot_index;
|
||||
/* The index of the next R_X86_64_IRELATIVE entry in .rela.plt. */
|
||||
bfd_vma next_irelative_index;
|
||||
|
||||
/* TRUE if there are dynamic relocs against IFUNC symbols that apply
|
||||
to read-only sections. */
|
||||
bfd_boolean readonly_dynrelocs_against_ifunc;
|
||||
|
||||
bfd_vma (*r_info) (bfd_vma, bfd_vma);
|
||||
bfd_vma (*r_sym) (bfd_vma);
|
||||
unsigned int pointer_r_type;
|
||||
int dynamic_interpreter_size;
|
||||
const char *dynamic_interpreter;
|
||||
const char *tls_get_addr;
|
||||
};
|
||||
|
||||
struct elf_x86_obj_tdata
|
||||
{
|
||||
struct elf_obj_tdata root;
|
||||
|
||||
/* tls_type for each local got entry. */
|
||||
char *local_got_tls_type;
|
||||
|
||||
/* GOTPLT entries for TLS descriptors. */
|
||||
bfd_vma *local_tlsdesc_gotent;
|
||||
};
|
||||
|
||||
#define elf_x86_tdata(abfd) \
|
||||
((struct elf_x86_obj_tdata *) (abfd)->tdata.any)
|
||||
|
||||
#define elf_x86_local_got_tls_type(abfd) \
|
||||
(elf_x86_tdata (abfd)->local_got_tls_type)
|
||||
|
||||
#define elf_x86_local_tlsdesc_gotent(abfd) \
|
||||
(elf_x86_tdata (abfd)->local_tlsdesc_gotent)
|
||||
|
||||
extern void _bfd_x86_elf_set_tls_module_base
|
||||
(struct bfd_link_info *);
|
||||
|
||||
extern bfd_vma _bfd_x86_elf_dtpoff_base
|
||||
(struct bfd_link_info *);
|
||||
|
||||
extern bfd_boolean _bfd_x86_elf_readonly_dynrelocs
|
||||
(struct elf_link_hash_entry *, void *);
|
||||
|
||||
extern struct elf_link_hash_entry * _bfd_elf_x86_get_local_sym_hash
|
||||
(struct elf_x86_link_hash_table *, bfd *, const Elf_Internal_Rela *,
|
||||
bfd_boolean);
|
||||
|
||||
extern hashval_t _bfd_x86_elf_local_htab_hash
|
||||
(const void *);
|
||||
|
||||
extern int _bfd_x86_elf_local_htab_eq
|
||||
(const void *, const void *);
|
||||
|
||||
extern struct bfd_hash_entry * _bfd_x86_elf_link_hash_newfunc
|
||||
(struct bfd_hash_entry *, struct bfd_hash_table *, const char *);
|
||||
|
||||
extern void _bfd_x86_elf_link_hash_table_free
|
||||
(bfd *);
|
||||
|
||||
extern int _bfd_x86_elf_compare_relocs
|
||||
(const void *, const void *);
|
||||
|
||||
extern bfd_boolean _bfd_x86_elf_link_check_relocs
|
||||
(bfd *, struct bfd_link_info *);
|
||||
|
||||
extern bfd_boolean _bfd_x86_elf_always_size_sections
|
||||
(bfd *, struct bfd_link_info *);
|
||||
|
||||
extern void _bfd_x86_elf_merge_symbol_attribute
|
||||
(struct elf_link_hash_entry *, const Elf_Internal_Sym *,
|
||||
bfd_boolean, bfd_boolean);
|
||||
|
||||
extern void _bfd_x86_elf_copy_indirect_symbol
|
||||
(struct bfd_link_info *, struct elf_link_hash_entry *,
|
||||
struct elf_link_hash_entry *);
|
||||
|
||||
extern bfd_boolean _bfd_x86_elf_fixup_symbol
|
||||
(struct bfd_link_info *, struct elf_link_hash_entry *);
|
||||
|
||||
extern bfd_boolean _bfd_x86_elf_hash_symbol
|
||||
(struct elf_link_hash_entry *);
|
||||
|
||||
extern enum elf_property_kind _bfd_x86_elf_parse_gnu_properties
|
||||
(bfd *, unsigned int, bfd_byte *, unsigned int);
|
||||
|
||||
extern bfd_boolean _bfd_x86_elf_merge_gnu_properties
|
||||
(struct bfd_link_info *, bfd *, elf_property *, elf_property *);
|
||||
|
||||
#define bfd_elf64_bfd_link_check_relocs \
|
||||
_bfd_x86_elf_link_check_relocs
|
||||
#define bfd_elf32_bfd_link_check_relocs \
|
||||
_bfd_x86_elf_link_check_relocs
|
||||
|
||||
#define elf_backend_always_size_sections \
|
||||
_bfd_x86_elf_always_size_sections
|
||||
#define elf_backend_merge_symbol_attribute \
|
||||
_bfd_x86_elf_merge_symbol_attribute
|
||||
#define elf_backend_copy_indirect_symbol \
|
||||
_bfd_x86_elf_copy_indirect_symbol
|
||||
#define elf_backend_fixup_symbol \
|
||||
_bfd_x86_elf_fixup_symbol
|
||||
#define elf_backend_hash_symbol \
|
||||
_bfd_x86_elf_hash_symbol
|
||||
#define elf_backend_omit_section_dynsym \
|
||||
((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
|
||||
#define elf_backend_parse_gnu_properties \
|
||||
_bfd_x86_elf_parse_gnu_properties
|
||||
#define elf_backend_merge_gnu_properties \
|
||||
_bfd_x86_elf_merge_gnu_properties
|
||||
Loading…
Reference in New Issue
Block a user