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Diffstat (limited to 'bfd/ChangeLog')
| -rw-r--r-- | bfd/ChangeLog | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 0bdc2ad..a1131c8 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,103 @@ 2011-03-14 Richard Sandiford <richard.sandiford@linaro.org> + * reloc.c (BFD_RELOC_ARM_IRELATIVE): New relocation. + * bfd-in2.h: Regenerate. + * elf32-arm.c (elf32_arm_howto_table_2): Rename existing definition + to elf32_arm_howto_table_3 and replace with a single R_ARM_IRELATIVE + entry. + (elf32_arm_howto_from_type): Update accordingly. + (elf32_arm_reloc_map): Map BFD_RELOC_ARM_IRELATIVE to R_ARM_IRELATIVE. + (elf32_arm_reloc_name_lookup): Handle elf32_arm_howto_table_3. + (arm_plt_info): New structure, split out from elf32_arm_link_hash_entry + with an extra noncall_refcount field. + (arm_local_iplt_info): New structure. + (elf_arm_obj_tdata): Add local_iplt. + (elf32_arm_local_iplt): New accessor macro. + (elf32_arm_link_hash_entry): Replace plt_thumb_refcount, + plt_maybe_thumb_refcount and plt_got_offset with an arm_plt_info. + Change tls_type to a bitfield and add is_iplt. + (elf32_arm_link_hash_newfunc): Update accordingly. + (elf32_arm_allocate_local_sym_info): New function. + (elf32_arm_create_local_iplt): Likewise. + (elf32_arm_get_plt_info): Likewise. + (elf32_arm_plt_needs_thumb_stub_p): Likewise. + (elf32_arm_get_local_dynreloc_list): Likewise. + (create_ifunc_sections): Likewise. + (elf32_arm_copy_indirect_symbol): Update after the changes to + elf32_arm_link_hash_entry. Assert the is_iplt has not yet been set. + (arm_type_of_stub): Add an st_type argument. Use elf32_arm_get_plt_info + to get PLT information. Assert that all STT_GNU_IFUNC references + are turned into PLT references. + (arm_build_one_stub): Pass the symbol type to + elf32_arm_final_link_relocate. + (elf32_arm_size_stubs): Pass the symbol type to arm_type_of_stub. + (elf32_arm_allocate_irelocs): New function. + (elf32_arm_add_dynreloc): In static objects, use .rel.iplt for + all R_ARM_IRELATIVE. + (elf32_arm_allocate_plt_entry): New function. + (elf32_arm_populate_plt_entry): Likewise. + (elf32_arm_final_link_relocate): Add an st_type parameter. + Set srelgot to null for static objects. Use separate variables + to record which st_value and st_type should be used when generating + a dynamic relocation. Use elf32_arm_get_plt_info to find the + symbol's PLT information, setting has_iplt_entry, splt, + plt_offset and gotplt_offset accordingly. Check whether + STT_GNU_IFUNC symbols should resolve to an .iplt entry, and change + the relocation target accordingly. Broaden assert to include + .iplts. Don't set sreloc for static relocations. Assert that + we only generate dynamic R_ARM_RELATIVE relocations for R_ARM_ABS32 + and R_ARM_ABS32_NOI. Generate R_ARM_IRELATIVE relocations instead + of R_ARM_RELATIVE relocations if the target is an STT_GNU_IFUNC + symbol. Pass the symbol type to arm_type_of_stub. Conditionally + resolve GOT references to the .igot.plt entry. + (elf32_arm_relocate_section): Update the call to + elf32_arm_final_link_relocate. + (elf32_arm_gc_sweep_hook): Use elf32_arm_get_plt_info to get PLT + information. Treat R_ARM_REL32 and R_ARM_REL32_NOI as call + relocations in shared libraries and relocatable executables. + Count non-call PLT references. Use elf32_arm_get_local_dynreloc_list + to get the list of dynamic relocations for a local symbol. + (elf32_arm_check_relocs): Always create ifunc sections. Set isym + at the same time as setting h. Use elf32_arm_allocate_local_sym_info + to allocate local symbol information. Treat R_ARM_REL32 and + R_ARM_REL32_NOI as call relocations in shared libraries and + relocatable executables. Record PLT information for local + STT_GNU_IFUNC functions as well as global functions. Count + non-call PLT references. Use elf32_arm_get_local_dynreloc_list + to get the list of dynamic relocations for a local symbol. + (elf32_arm_adjust_dynamic_symbol): Handle STT_GNU_IFUNC symbols. + Don't remove STT_GNU_IFUNC PLTs unless all references have been + removed. Update after the changes to elf32_arm_link_hash_entry. + (allocate_dynrelocs_for_symbol): Decide whether STT_GNU_IFUNC PLT + entries should live in .plt or .iplt. Check whether the .igot.plt + and .got entries can be combined. Use elf32_arm_allocate_plt_entry + to allocate .plt and .(i)got.plt entries. Detect which .got + entries will need R_ARM_IRELATIVE relocations and use + elf32_arm_allocate_irelocs to allocate them. Likewise other + non-.got dynamic relocations. + (elf32_arm_size_dynamic_sections): Allocate .iplt, .igot.plt + and dynamic relocations for local STT_GNU_IFUNC symbols. + Check whether the .igot.plt and .got entries can be combined. + Detect which .got entries will need R_ARM_IRELATIVE relocations + and use elf32_arm_allocate_irelocs to allocate them. Use stashed + section pointers intead of strcmp checks. Handle iplt and igotplt. + (elf32_arm_finish_dynamic_symbol): Use elf32_arm_populate_plt_entry + to fill in .plt, .got.plt and .rel(a).plt entries. Point + STT_GNU_IFUNC symbols at an .iplt entry if non-call relocations + resolve to it. + (elf32_arm_output_plt_map_1): New function, split out from + elf32_arm_output_plt_map. Handle .iplt entries. Use + elf32_arm_plt_needs_thumb_stub_p. + (elf32_arm_output_plt_map): Call it. + (elf32_arm_output_arch_local_syms): Add mapping symbols for + local .iplt entries. + (elf32_arm_swap_symbol_in): Handle Thumb STT_GNU_IFUNC symbols. + (elf32_arm_swap_symbol_out): Likewise. + (elf32_arm_add_symbol_hook): New function. + (elf_backend_add_symbol_hook): Define for all targets. + +2011-03-14 Richard Sandiford <richard.sandiford@linaro.org> + * elf-bfd.h (elf_link_hash_entry): Add target_internal. * elf.c (swap_out_syms): Set st_target_internal for each Elf_Internal_Sym. |