Shared lib support.
This commit is contained in:
Alan Modra
parent
3231d22e8f
commit
30667bf3fc
3 changed files with 3283 additions and 816 deletions
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@ -1,5 +1,93 @@
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2000-09-05 Alan Modra <alan@linuxcare.com.au>
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Shared library and PIC support.
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* elf32-hppa.c (PLT_ENTRY_SIZE): New.
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(GOT_ENTRY_SIZE): New.
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(ELF_DYNAMIC_INTERPRETER): New.
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(STUB_SUFFIX): Define.
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(LONG_BRANCH_PIC_IN_SHLIB): Define.
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(RELATIVE_DYNAMIC_RELOCS): Define.
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(enum elf32_hppa_stub_type): New.
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(struct elf32_hppa_stub_hash_entry): Rename offset to
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stub_offset. Add a number of new fields.
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(struct elf32_hppa_link_hash_entry): New.
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(struct elf32_hppa_link_hash_table): Add numerous fields. Remove
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global_value.
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(elf32_hppa_hash_table): Rename to hppa_link_hash_table.
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(elf32_hppa_stub_hash_lookup): Rename to hppa_stub_hash_lookup.
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(elf32_hppa_stub_hash_newfunc): Rename to stub_hash_newfunc. Init
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new fields.
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(hppa_link_hash_newfunc): New function.
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(elf32_hppa_link_hash_table_create): Use above function. Init new
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fields.
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(elf32_hppa_stub_name): Rename to hppa_stub_name. Pass in reloc
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instead of addend, and remove sym_name from args. Don't use
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symbol name for local syms, instead use sym index.
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(elf32_hppa_size_of_stub): Rename to hppa_type_of_stub, and return
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stub type rather than size. Pass in hash and handle import stub
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case. Also pass in reloc instead of offset so we can calculate
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PCREL22F and PCREL12F branches properly.
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(elf32_hppa_build_one_stub): Rename to hppa_build_one_stub. Build
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import and export stubs too.
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(elf32_hppa_size_one_stub): Rename to hppa_size_one_stub. Handle
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import and export stub sizing.
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(elf32_hppa_check_relocs): New function.
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(elf32_hppa_adjust_dynamic_symbol): New function.
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(hppa_discard_copies): New function.
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(elf32_hppa_size_dynamic_sections): New function.
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(elf_backend_size_dynamic_sections): Define.
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(elf32_hppa_finish_dynamic_symbol): New function.
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(elf_backend_finish_dynamic_symbol): Define.
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(elf32_hppa_size_stubs): Stash params in link hash table, and move
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some local vars into the link hash table too. For shared links,
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trundle over function syms, generating export stubs. Handle
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PCREL22F branches. Break out stub creation code from here..
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(hppa_add_stub): .. to here. New function.
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(elf32_hppa_final_link): Rename to elf32_hppa_set_gp, and don't
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call the bfd linker. Use elf_gp to record global pointer.
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Calculate a value from sections if $global$ is missing.
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(bfd_elf32_bfd_final_link): Define as _bfd_elf32_gc_common_final_link.
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(elf32_hppa_gc_mark_hook): New function.
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(elf_backend_gc_mark_hook): Define.
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(elf32_hppa_gc_sweep_hook): New function.
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(elf_backend_gc_sweep_hook): Define.
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(elf32_hppa_bfd_final_link_relocate): Rename to final_link_relocate.
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Add rel to args, and remove howto, input_bfd, offset, addend,
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sym_name as we can recalculate these locally. Handle calls to
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dynamic objects, extra PIC relocs, PCREL22F branches. Change
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handling of undefined weak syms. Check that stubs are in range.
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Only look for import stubs on PCREL17F and PCREL22F relocs. Add
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message on hitting a DPREL21L reloc that needs fixing. Subtract
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off PC for PCREL14F. Break out code that does a stub lookup from
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here..
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(hppa_get_stub_entry): ..to here. New function.
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(elf32_hppa_relocate_insn): Merge into final_link_relocate.
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(elf32_hppa_relocate_section): Handle got and plt relocs, dynamic
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relocs, etc. etc.
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(elf32_hppa_finish_dynamic_sections): New function.
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(elf_backend_finish_dynamic_sections): Define.
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(elf_backend_final_write_processing) Define.
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(hppa_handle_PIC_calls): New function.
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(elf32_hppa_build_stubs): Call it. Pass link_info to
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hppa_build_one_stub.
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(elf32_hppa_create_dynamic_sections): New function
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to create .plt and .got then set .plt flags correctly.
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(elf_backend_create_dynamic_sections): Define.
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(elf32_hppa_object_p): New function.
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(elf_backend_object_p): Define.
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(elf32_hppa_elf_get_symbol_type): New function.
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(elf_backend_get_symbol_type): Define.
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(elf_backend_can_gc_sections): Define.
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(elf_backend_want_got_plt): Define.
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(elf_backend_plt_alignment): Set to 2.
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(elf_backend_plt_readonly): Define.
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(elf_backend_want_plt_sym): Define.
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(elf_backend_got_header_size): Reserve one entry.
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* elf32-hppa.h (elf32_hppa_build_stubs): Don't pass stub bfd.
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(elf32_hppa_size_stubs): Pass in multi_subspace.
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(elf32_hppa_set_gp): Declare.
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* section.c (SEC_HAS_GOT_REF): Define new flag for asection.
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(bfd_get_unique_section_name): New function.
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* bfd_in2.h: Regenerate.
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4004
bfd/elf32-hppa.c
4004
bfd/elf32-hppa.c
File diff suppressed because it is too large
Load diff
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@ -37,13 +37,16 @@
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#include "elf/hppa.h"
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boolean elf32_hppa_size_stubs
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PARAMS ((bfd *, struct bfd_link_info *,
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PARAMS ((bfd *, boolean, struct bfd_link_info *,
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asection * (*) PARAMS ((const char *, asection *)),
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void (*) PARAMS ((void))));
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boolean elf32_hppa_build_stubs
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boolean elf32_hppa_set_gp
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PARAMS ((bfd *, struct bfd_link_info *));
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boolean elf32_hppa_build_stubs
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PARAMS ((struct bfd_link_info *));
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extern elf_hppa_reloc_type ** _bfd_elf32_hppa_gen_reloc_type
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PARAMS ((bfd *, elf_hppa_reloc_type, int, unsigned int, int, asymbol *));
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