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authorNick Clifton <nickc@redhat.com>2020-03-05 15:47:15 +0000
committerNick Clifton <nickc@redhat.com>2020-03-05 15:47:15 +0000
commita8e14f4cc2badfcf959f5e2cc57a941dc43f72d4 (patch)
tree444ec5de9720df67ac7202749119058278f3d9d7 /bfd/elfxx-target.h
parent842806cb6f1c321666dd086a79a0fdfbd35497ed (diff)
downloadbinutils-gdb-a8e14f4cc2badfcf959f5e2cc57a941dc43f72d4.tar.gz
Add support for ELF files which contain multiple reloc sections which all 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.
Diffstat (limited to 'bfd/elfxx-target.h')
-rw-r--r--bfd/elfxx-target.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h
index e9cac0a5352..1ae17f45ee2 100644
--- a/bfd/elfxx-target.h
+++ b/bfd/elfxx-target.h
@@ -758,7 +758,7 @@
#endif
#ifndef elf_backend_copy_special_section_fields
-#define elf_backend_copy_special_section_fields NULL
+#define elf_backend_copy_special_section_fields _bfd_elf_copy_special_section_fields
#endif
#ifndef elf_backend_compact_eh_encoding
@@ -766,7 +766,19 @@
#endif
#ifndef elf_backend_cant_unwind_opcode
-#define elf_backend_cant_unwind_opcode 0
+#define elf_backend_cant_unwind_opcode NULL
+#endif
+
+#ifndef elf_backend_init_secondary_reloc_section
+#define elf_backend_init_secondary_reloc_section _bfd_elf_init_secondary_reloc_section
+#endif
+
+#ifndef elf_backend_slurp_secondary_reloc_section
+#define elf_backend_slurp_secondary_reloc_section _bfd_elf_slurp_secondary_reloc_section
+#endif
+
+#ifndef elf_backend_write_secondary_reloc_section
+#define elf_backend_write_secondary_reloc_section _bfd_elf_write_secondary_reloc_section
#endif
#ifndef elf_backend_symbol_section_index
@@ -900,6 +912,9 @@ static struct elf_backend_data elfNN_bed =
elf_backend_compact_eh_encoding,
elf_backend_cant_unwind_opcode,
elf_backend_symbol_section_index,
+ elf_backend_init_secondary_reloc_section,
+ elf_backend_slurp_secondary_reloc_section,
+ elf_backend_write_secondary_reloc_section,
elf_backend_static_tls_alignment,
elf_backend_stack_align,
elf_backend_strtab_flags,