diff options
author | Daniel Jacobowitz <drow@false.org> | 2008-08-08 19:24:49 +0000 |
---|---|---|
committer | Daniel Jacobowitz <drow@false.org> | 2008-08-08 19:24:49 +0000 |
commit | 861fb55ab50ac986e273334639c4c44bb3353efb (patch) | |
tree | 59222b43abbb363ff95f4d0b6fb94ded6a32f9bf /binutils | |
parent | 532f93bd8e3c0f2e072037e6cdbad4a8f83ee411 (diff) | |
download | gdb-861fb55ab50ac986e273334639c4c44bb3353efb.zip gdb-861fb55ab50ac986e273334639c4c44bb3353efb.tar.gz gdb-861fb55ab50ac986e273334639c4c44bb3353efb.tar.bz2 |
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
Catherine Moore <clm@codesourcery.com>
Mark Shinwell <shinwell@codesourcery.com>
Maxim Kuvyrkov <maxim@codesourcery.com>
* elf32-mips.c (mips_vxworks_copy_howto_rela): Replace with...
(elf_mips_copy_howto): ...this howto. Clear the size fields.
(mips_vxworks_jump_slot_howto_rela): Replace with...
(elf_mips_jump_slot_howto): ...this howto.
(bfd_elf32_bfd_reloc_type_lookup): Handle BFD_RELOC_MIPS_COPY
and BFD_RELOC_MIPS_JUMP_SLOT.
(bfd_elf32_bfd_reloc_name_lookup): Handle "R_MIPS_COPY" and
"R_MIPS_JUMP_SLOT".
(mips_elf32_rtype_to_howto): Handle R_MIPS_COPY and R_MIPS_JUMP_SLOT.
(elf_backend_plt_readonly): Define.
(elf_backend_plt_sym_val): Define for non-VxWorks targets.
(mips_vxworks_bfd_reloc_type_lookup): Delete.
(mips_vxworks_bfd_reloc_name_lookup): Likewise.
(mips_vxworks_rtype_to_howto): Likewise.
(elf_backend_want_dynbss): Don't define for VxWorks.
(elf_backend_plt_readonly): Likewise.
(bfd_elf32_bfd_reloc_type_lookup): Likewise.
(bfd_elf32_bfd_reloc_name_lookup): Likewise.
(elf_backend_mips_rtype_to_howto): Likewise.
(elf_backend_adjust_dynamic_symbol): Likewise.
(elf_backend_got_symbol_offset): Don't define.
* elfn32-mips.c (elf_mips_copy_howto, elf_mips_jump_slot_howto): New.
(bfd_elf32_bfd_reloc_type_lookup): Handle BFD_RELOC_MIPS_COPY
and BFD_RELOC_MIPS_JUMP_SLOT.
(bfd_elf32_bfd_reloc_name_lookup): Handle "R_MIPS_COPY" and
"R_MIPS_JUMP_SLOT".
(mips_elf32_n32_rtype_to_howto): Handle R_MIPS_COPY and
R_MIPS_JUMP_SLOT.
(elf_backend_rela_plts_and_copies_p, elf_backend_plt_readonly)
(elf_backend_plt_sym_val): Define.
* elf64-mips.c (elf_mips_copy_howto, elf_mips_jump_slot_howto): New.
(bfd_elf64_bfd_reloc_type_lookup): Handle BFD_RELOC_MIPS_COPY
and BFD_RELOC_MIPS_JUMP_SLOT.
(bfd_elf64_bfd_reloc_name_lookup): Handle "R_MIPS_COPY" and
"R_MIPS_JUMP_SLOT".
(mips_elf64_rtype_to_howto): Handle R_MIPS_COPY and R_MIPS_JUMP_SLOT.
(elf_backend_rela_plts_and_copies_p, elf_backend_plt_readonly)
(elf_backend_plt_sym_val): Define.
* elfxx-mips.h (_bfd_mips_vxworks_adjust_dynamic_symbol): Delete.
(_bfd_mips_elf_use_plts_and_copy_relocs, _bfd_mips_elf_init_stubs)
(_bfd_mips_elf_plt_sym_val, _bfd_mips_post_process_headers): Declare.
* elfxx-mips.c (mips_elf_la25_stub): New structure.
(LA25_LUI, LA25_J, LA25_ADDIU): New macros.
(mips_elf_link_hash_entry): Add "la25_stubs", "has_static_relocs"
and "has_nonpic_branches" fields. Remove "is_relocation_target" and
"is_branch_target".
(mips_elf_link_hash_table): Add blank lines. Add
"use_plts_and_copy_relocs", "reserved_gotno", "strampoline",
"la25_stubs" and "add_stub_section" fields.
(mips_htab_traverse_info): New structure.
(PIC_OBJECT_P, MIPS_ELF_LOAD_WORD): New macros.
(MIPS_RESERVED_GOTNO): Delete.
(mips_o32_exec_plt0_entry, mips_n32_exec_plt0_entry)
(mips_n64_exec_plt0_entry, mips_exec_plt_entry): New tables.
(mips_elf_link_hash_newfunc): Update after the changes to
mips_elf_link_hash_entry.
(mips_elf_check_mips16_stubs): Replace the DATA parameter with
an INFO parameter. Don't look through warnings symbols here;
do it in mips_elf_check_symbols instead.
(mips_elf_create_stub_symbol): New function.
(mips_elf_la25_stub_hash, mips_elf_la25_stub_eq): New functions.
(_bfd_mips_elf_init_stubs, mips_elf_local_pic_function_p): Likewise.
(mips_elf_add_la25_intro, mips_elf_add_la25_trampoline): Likewise.
(mips_elf_add_la25_stub, mips_elf_check_symbols): New functions.
(mips_elf_gotplt_index): Check for VxWorks.
(mips_elf_output_dynamic_relocation): Take the relocation index
as an extra parameter. Do not increment reloc_count here.
(mips_elf_initialize_tls_slots): Update the calls to
mips_elf_output_dynamic_relocation accordingly.
(mips_elf_multi_got): Use htab->reserved_gotno instead of
MIPS_RESERVED_GOTNO.
(mips_elf_create_got_section): Don't allocate reserved GOT
entries here. Unconditionally create .got.plt, but don't
set its alignment here.
(mips_elf_relocation_needs_la25_stub): New function.
(mips_elf_calculate_relocation): Redirect branches and jumps to
a non-PIC stub if one exists. Check !h->has_static_relocs instead
of !htab->is_vxworks when deciding whether to create dynamic
relocations for R_MIPS_32, R_MIPS_REL32 and R_MIPS_64.
(_bfd_mips_elf_create_dynamic_sections): Unconditionally call
_bfd_elf_create_dynamic_sections. Unconditionally set up
htab->splt and htab->sdynbss. Set htab->srelplt to ".rel.plt"
if !htab->is_vxworks. Add non-VxWorks values of
htab->plt_header_size and htab->plt_entry_size.
(_bfd_mips_elf_check_relocs): Set pointer_equality_needed for
non-branch static relocations. Set has_nonpic_branches when an la25
stub might be required. Set can_make_dynamic_p to TRUE if R_MIPS_32,
R_MIPS_REL32 and R_MIPS_64 relocations can be made dynamic,
rather than duplicating the condition. Do not make them dynamic
for read-only sections in non-PIC executable objects.
Do not protect this code with dynobj == NULL || htab->sgot == NULL;
handle each group of cases separately. Add a default case that
sets has_static_relocs for non-GOT relocations that cannot be
made dynamic. Don't set is_relocation_target and is_branch_target.
Reject non-PIC static relocations in shared objects.
(_bfd_mips_vxworks_adjust_dynamic_symbol): Fold into...
(_bfd_mips_elf_adjust_dynamic_symbol): ...here, using
htab->use_plts_and_copy_relocs instead of htab->is_vxworks
to select PLT and copy-reloc handling. Set the alignment of
.plt and .got.plt when allocating the first entry. Generalize
code to handle REL as well as RELA sections and 64-bit as well as
32-bit GOT entries. Complain if we find a static-only reloc
against an externally-defined symbol and if we cannot create
dynamic relocations for it. Allocate copy relocs using
mips_elf_allocate_dynamic_relocations on non-VxWorks targets.
Set possibly_dynamic_relocs to 0 when using PLTs or copy relocs.
Skip reserved .got.plt entries.
(_bfd_mips_elf_always_size_sections): Use mips_elf_check_symbols
instead of mips_elf_check_mips16_stubs to process each symbol.
Do the traversal for relocatable objects too.
(mips_elf_lay_out_got): Use htab->reserved_gotno instead of
MIPS_RESERVED_GOTNO.
(_bfd_mips_elf_size_dynamic_sections): Exclude sdynbss if it
is empty. Extend the DT_PLTREL, DT_JMPREL and DT_PLTRELSZ handling
to non-VxWorks targets. Only add DT_REL{,A}, DT_REL{,A}SZ and
DT_REL{,A}ENT if .rel.dyn is nonempty. Create a symbol for the
PLT. Allocate a nop at the end of the PLT. Allocate DT_MIPS_PLTGOT.
(mips_elf_create_la25_stub_info): New function.
(_bfd_mips_elf_finish_dynamic_symbol): Write out PLT entries
and copy relocs where necessary. Check pointer_equality_needed.
(mips_finish_exec_plt): New function.
(_bfd_mips_elf_finish_dynamic_sections): Always set DT_PLTGOT
to the beginning of htab->sgot. Use htab->reserved_gotno instead
of MIPS_RESERVED_GOTNO. Assert htab->use_plts_and_copy_relocs
instead of htab->is_vxworks for DT_PLTREL, DT_PLTRELSZ and DT_JMPREL.
Set DT_PLTREL to DT_REL instead of DT_RELA on non-VxWorks targets.
Use mips_finish_exec_plt to create non-VxWorks PLT headers. Set
DT_MIPS_PLTGOT.
(_bfd_mips_elf_copy_indirect_symbol): Copy has_static_relocs
from the indirect symbol to the direct symbol. Also copy
has_nonpic_branches for indirect symbols.
(_bfd_mips_elf_get_target_dtag): Handle DT_MIPS_PLTGOT and
DT_MIPS_RWPLT.
(_bfd_mips_elf_link_hash_table_create): Initialize the new
mips_elf_link_hash_table fields.
(_bfd_mips_vxworks_link_hash_table_create): Set
use_plts_and_copy_relocs to TRUE. Use TRUE rather than 1
when setting is_vxworks.
(_bfd_mips_elf_use_plts_and_copy_relocs): New function.
(_bfd_mips_elf_final_link): Call mips_elf_create_la25_stub for
each la25_stub.
(_bfd_mips_elf_merge_private_bfd_data): Treat dynamic objects
as PIC. Generalize message about linking PIC and non-PIC.
(_bfd_mips_elf_plt_sym_val, _bfd_mips_post_process_headers): New
functions.
* reloc.c: Update comment near BFD_RELOC_MIPS_JUMP_SLOT.
* bfd-in2.h: Regenerated.
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
Catherine Moore <clm@codesourcery.com>
Mark Shinwell <shinwell@codesourcery.com>
* readelf.c (get_mips_symbol_other): Handle STO_MIPS_PLT and
STO_MIPS_PIC.
(slurp_rela_relocs, slurp_rel_relocs): Handle MIPS ELF64 here.
(dump_relocations, debug_apply_relocations): Don't handle it here.
(get_mips_dynamic_type): Handle DT_MIPS_PLTGOT and DT_MIPS_RWPLT.
(print_mips_pltgot_entry): New function.
(process_mips_specific): Dump the PLT GOT.
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
* config/tc-mips.c (OPTION_CALL_NONPIC): New macro.
(OPTION_NON_SHARED, OPTION_XGOT, OPTION_MABI, OPTION_32)
(OPTION_N32, OPTION_64, OPTION_MDEBUG, OPTION_NO_MDEBUG)
(OPTION_PDR, OPTION_NO_PDR, OPTION_MVXWORKS_PIC): Bump by 1.
(md_longopts): Add -call_nonpic.
(md_parse_option): Handle OPTION_CALL_NONPIC.
(md_show_usage): Add -call_nonpic.
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
* gas/mips/call-nonpic-1.s, gas/mips/call-nonpic-1.d: New test.
* gas/mips/mips.exp: Run it.
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
Catherine Moore <clm@codesourcery.com>
Mark Shinwell <shinwell@codesourcery.com>
* mips.h (STO_MIPS_PLT, ELF_ST_IS_MIPS_PLT, ELF_ST_SET_MIPS_PLT)
(STO_MIPS_PIC, DT_MIPS_PLTGOT, DT_MIPS_RWPLT): New macros.
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
* emulparams/elf32bmip.sh (GOT): Define, moving .got.plt to...
(OTHER_RELRO_SECTIONS, OTHER_READWRITE_SECTIONS): ...one of these
two variables.
* emulparams/elf32bmipn32-defs.sh: Likewise.
* emultempl/mipself.em: Include ldctor.h, elf/mips.h and elfxx-mips.h.
(is_mips_elf): New macro.
(stub_file, stub_bfd): New variables.
(hook_stub_info): New structure.
(hook_in_stub): New function.
(mips_add_stub_section): Likewise.
(mips_create_output_section_statements): Likewise.
(mips_before_allocation): Likewise.
(real_func): New variable.
(mips_for_each_input_file_wrapper): New function.
(mips_lang_for_each_input_file): Likewise.
(lang_for_each_input_file): Define.
(LDEMUL_BEFORE_ALLOCATION): Likewise.
(LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS): Likewise.
2008-08-08 Richard Sandiford <rdsandiford@googlemail.com>
Daniel Jacobowitz <dan@codesourcery.com>
* ld-mips-elf/mips16-pic-3a.s,
ld-mips-elf/mips16-pic-3b.s,
ld-mips-elf/mips16-pic-3.dd,
ld-mips-elf/mips16-pic-3.gd,
ld-mips-elf/mips16-pic-3.rd,
ld-mips-elf/mips16-pic-3.inc,
ld-mips-elf/pic-and-nonpic-1a.s,
ld-mips-elf/pic-and-nonpic-1b.s,
ld-mips-elf/pic-and-nonpic-1.ld,
ld-mips-elf/pic-and-nonpic-1.dd,
ld-mips-elf/pic-and-nonpic-1.nd,
ld-mips-elf/pic-and-nonpic-1-rel.dd,
ld-mips-elf/pic-and-nonpic-1-rel.nd,
ld-mips-elf/pic-and-nonpic-2a.s,
ld-mips-elf/pic-and-nonpic-2b.s,
ld-mips-elf/pic-and-nonpic-2.d,
ld-mips-elf/pic-and-nonpic-3a.s,
ld-mips-elf/pic-and-nonpic-3a.ld,
ld-mips-elf/pic-and-nonpic-3a.dd,
ld-mips-elf/pic-and-nonpic-3a.gd,
ld-mips-elf/pic-and-nonpic-3a.sd,
ld-mips-elf/pic-and-nonpic-3b.s,
ld-mips-elf/pic-and-nonpic-3b.ld,
ld-mips-elf/pic-and-nonpic-3b.ad,
ld-mips-elf/pic-and-nonpic-3b.dd,
ld-mips-elf/pic-and-nonpic-3b.gd,
ld-mips-elf/pic-and-nonpic-3b.nd,
ld-mips-elf/pic-and-nonpic-3b.pd,
ld-mips-elf/pic-and-nonpic-3b.rd,
ld-mips-elf/pic-and-nonpic-3b.sd,
ld-mips-elf/pic-and-nonpic-3-error.d,
ld-mips-elf/pic-and-nonpic-4a.s,
ld-mips-elf/pic-and-nonpic-4b.s,
ld-mips-elf/pic-and-nonpic-4b.ld,
ld-mips-elf/pic-and-nonpic-4b.ad,
ld-mips-elf/pic-and-nonpic-4b.dd,
ld-mips-elf/pic-and-nonpic-4b.gd,
ld-mips-elf/pic-and-nonpic-4b.nd,
ld-mips-elf/pic-and-nonpic-4b.rd,
ld-mips-elf/pic-and-nonpic-4b.sd,
ld-mips-elf/pic-and-nonpic-4-error.d,
ld-mips-elf/pic-and-nonpic-5a.s,
ld-mips-elf/pic-and-nonpic-5b.s,
ld-mips-elf/pic-and-nonpic-5b.ld,
ld-mips-elf/pic-and-nonpic-5b.ad,
ld-mips-elf/pic-and-nonpic-5b.dd,
ld-mips-elf/pic-and-nonpic-5b.gd,
ld-mips-elf/pic-and-nonpic-5b.nd,
ld-mips-elf/pic-and-nonpic-5b.rd,
ld-mips-elf/pic-and-nonpic-5b.sd,
ld-mips-elf/pic-and-nonpic-5b.pd,
ld-mips-elf/pic-and-nonpic-6.ld,
ld-mips-elf/pic-and-nonpic-6-o32a.s,
ld-mips-elf/pic-and-nonpic-6-o32b.s,
ld-mips-elf/pic-and-nonpic-6-o32c.s,
ld-mips-elf/pic-and-nonpic-6-o32.ad,
ld-mips-elf/pic-and-nonpic-6-o32.dd,
ld-mips-elf/pic-and-nonpic-6-o32.gd,
ld-mips-elf/pic-and-nonpic-6-o32.nd,
ld-mips-elf/pic-and-nonpic-6-o32.pd,
ld-mips-elf/pic-and-nonpic-6-o32.rd,
ld-mips-elf/pic-and-nonpic-6-o32.sd,
ld-mips-elf/pic-and-nonpic-6-n32a.s,
ld-mips-elf/pic-and-nonpic-6-n32b.s,
ld-mips-elf/pic-and-nonpic-6-n32c.s,
ld-mips-elf/pic-and-nonpic-6-n32.ad,
ld-mips-elf/pic-and-nonpic-6-n32.dd,
ld-mips-elf/pic-and-nonpic-6-n32.gd,
ld-mips-elf/pic-and-nonpic-6-n32.nd,
ld-mips-elf/pic-and-nonpic-6-n32.pd,
ld-mips-elf/pic-and-nonpic-6-n32.rd,
ld-mips-elf/pic-and-nonpic-6-n32.sd,
ld-mips-elf/pic-and-nonpic-6-n64a.s,
ld-mips-elf/pic-and-nonpic-6-n64b.s,
ld-mips-elf/pic-and-nonpic-6-n64c.s,
ld-mips-elf/pic-and-nonpic-6-n64.ad,
ld-mips-elf/pic-and-nonpic-6-n64.dd,
ld-mips-elf/pic-and-nonpic-6-n64.gd,
ld-mips-elf/pic-and-nonpic-6-n64.nd,
ld-mips-elf/pic-and-nonpic-6-n64.pd,
ld-mips-elf/pic-and-nonpic-6-n64.rd,
ld-mips-elf/pic-and-nonpic-6-n64.sd: New tests.
* ld-mips-elf/mips-elf.exp: Run them.
Diffstat (limited to 'binutils')
-rw-r--r-- | binutils/ChangeLog | 13 | ||||
-rw-r--r-- | binutils/readelf.c | 189 |
2 files changed, 168 insertions, 34 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 9cb36ce..f169cab 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,16 @@ +2008-08-08 Richard Sandiford <rdsandiford@googlemail.com> + Daniel Jacobowitz <dan@codesourcery.com> + Catherine Moore <clm@codesourcery.com> + Mark Shinwell <shinwell@codesourcery.com> + + * readelf.c (get_mips_symbol_other): Handle STO_MIPS_PLT and + STO_MIPS_PIC. + (slurp_rela_relocs, slurp_rel_relocs): Handle MIPS ELF64 here. + (dump_relocations, debug_apply_relocations): Don't handle it here. + (get_mips_dynamic_type): Handle DT_MIPS_PLTGOT and DT_MIPS_RWPLT. + (print_mips_pltgot_entry): New function. + (process_mips_specific): Dump the PLT GOT. + 2008-08-08 Alan Modra <amodra@bigpond.net.au> * readelf.c (is_64bit_abs_reloc): Return true for R_MIPS_64. diff --git a/binutils/readelf.c b/binutils/readelf.c index ce1203e..609edc6 100644 --- a/binutils/readelf.c +++ b/binutils/readelf.c @@ -707,6 +707,28 @@ slurp_rela_relocs (FILE *file, relas[i].r_offset = BYTE_GET (erelas[i].r_offset); relas[i].r_info = BYTE_GET (erelas[i].r_info); relas[i].r_addend = BYTE_GET (erelas[i].r_addend); + + /* The #ifdef BFD64 below is to prevent a compile time + warning. We know that if we do not have a 64 bit data + type that we will never execute this code anyway. */ +#ifdef BFD64 + if (elf_header.e_machine == EM_MIPS + && elf_header.e_ident[EI_DATA] != ELFDATA2MSB) + { + /* In little-endian objects, r_info isn't really a + 64-bit little-endian value: it has a 32-bit + little-endian symbol index followed by four + individual byte fields. Reorder INFO + accordingly. */ + bfd_vma info = relas[i].r_info; + info = (((info & 0xffffffff) << 32) + | ((info >> 56) & 0xff) + | ((info >> 40) & 0xff00) + | ((info >> 24) & 0xff0000) + | ((info >> 8) & 0xff000000)); + relas[i].r_info = info; + } +#endif /* BFD64 */ } free (erelas); @@ -779,6 +801,28 @@ slurp_rel_relocs (FILE *file, rels[i].r_offset = BYTE_GET (erels[i].r_offset); rels[i].r_info = BYTE_GET (erels[i].r_info); rels[i].r_addend = 0; + + /* The #ifdef BFD64 below is to prevent a compile time + warning. We know that if we do not have a 64 bit data + type that we will never execute this code anyway. */ +#ifdef BFD64 + if (elf_header.e_machine == EM_MIPS + && elf_header.e_ident[EI_DATA] != ELFDATA2MSB) + { + /* In little-endian objects, r_info isn't really a + 64-bit little-endian value: it has a 32-bit + little-endian symbol index followed by four + individual byte fields. Reorder INFO + accordingly. */ + bfd_vma info = rels[i].r_info; + info = (((info & 0xffffffff) << 32) + | ((info >> 56) & 0xff) + | ((info >> 40) & 0xff00) + | ((info >> 24) & 0xff0000) + | ((info >> 8) & 0xff000000)); + rels[i].r_info = info; + } +#endif /* BFD64 */ } free (erels); @@ -895,26 +939,6 @@ dump_relocations (FILE *file, offset = rels[i].r_offset; info = rels[i].r_info; - /* The #ifdef BFD64 below is to prevent a compile time warning. - We know that if we do not have a 64 bit data type that we - will never execute this code anyway. */ -#ifdef BFD64 - if (!is_32bit_elf - && elf_header.e_machine == EM_MIPS - && elf_header.e_ident[EI_DATA] != ELFDATA2MSB) - { - /* In little-endian objects, r_info isn't really a 64-bit - little-endian value: it has a 32-bit little-endian - symbol index followed by four individual byte fields. - Reorder INFO accordingly. */ - info = (((info & 0xffffffff) << 32) - | ((info >> 56) & 0xff) - | ((info >> 40) & 0xff00) - | ((info >> 24) & 0xff0000) - | ((info >> 8) & 0xff000000)); - } -#endif /* BFD64 */ - type = get_reloc_type (info); symtab_index = get_reloc_symindex (info); @@ -1366,6 +1390,8 @@ get_mips_dynamic_type (unsigned long type) case DT_MIPS_COMPACT_SIZE: return "MIPS_COMPACT_SIZE"; case DT_MIPS_GP_VALUE: return "MIPS_GP_VALUE"; case DT_MIPS_AUX_DYNAMIC: return "MIPS_AUX_DYNAMIC"; + case DT_MIPS_PLTGOT: return "MIPS_PLTGOT"; + case DT_MIPS_RWPLT: return "MIPS_RWPLT"; default: return NULL; } @@ -7020,6 +7046,8 @@ get_mips_symbol_other (unsigned int other) { case STO_OPTIONAL: return "OPTIONAL"; case STO_MIPS16: return "MIPS16"; + case STO_MIPS_PLT: return "MIPS PLT"; + case STO_MIPS_PIC: return "MIPS PIC"; default: return NULL; } } @@ -8359,19 +8387,6 @@ debug_apply_relocations (void *file, unsigned int reloc_size; unsigned char * loc; - /* In MIPS little-endian objects, r_info isn't really a - 64-bit little-endian value: it has a 32-bit little-endian - symbol index followed by four individual byte fields. - Reorder INFO accordingly. */ - if (!is_32bit_elf - && elf_header.e_machine == EM_MIPS - && elf_header.e_ident[EI_DATA] != ELFDATA2MSB) - rp->r_info = (((rp->r_info & 0xffffffff) << 32) - | ((rp->r_info >> 56) & 0xff) - | ((rp->r_info >> 40) & 0xff00) - | ((rp->r_info >> 24) & 0xff0000) - | ((rp->r_info >> 8) & 0xff000000)); - reloc_type = get_reloc_type (rp->r_info); if (is_32bit_abs_reloc (reloc_type) @@ -9204,6 +9219,28 @@ print_mips_got_entry (unsigned char *data, bfd_vma pltgot, bfd_vma addr) return addr + (is_32bit_elf ? 4 : 8); } +/* DATA points to the contents of a MIPS PLT GOT that starts at VMA + PLTGOT. Print the Address and Initial fields of an entry at VMA + ADDR and return the VMA of the next entry. */ + +static bfd_vma +print_mips_pltgot_entry (unsigned char *data, bfd_vma pltgot, bfd_vma addr) +{ + printf (" "); + print_vma (addr, LONG_HEX); + printf (" "); + if (data == NULL) + printf ("%*s", is_32bit_elf ? 8 : 16, "<unknown>"); + else + { + bfd_vma entry; + + entry = byte_get (data + addr - pltgot, is_32bit_elf ? 4 : 8); + print_vma (entry, LONG_HEX); + } + return addr + (is_32bit_elf ? 4 : 8); +} + static int process_mips_specific (FILE *file) { @@ -9213,7 +9250,11 @@ process_mips_specific (FILE *file) size_t conflictsno = 0; size_t options_offset = 0; size_t conflicts_offset = 0; + size_t pltrelsz = 0; + size_t pltrel = 0; bfd_vma pltgot = 0; + bfd_vma mips_pltgot = 0; + bfd_vma jmprel = 0; bfd_vma local_gotno = 0; bfd_vma gotsym = 0; bfd_vma symtabno = 0; @@ -9249,7 +9290,8 @@ process_mips_specific (FILE *file) conflictsno = entry->d_un.d_val; break; case DT_PLTGOT: - pltgot = entry->d_un.d_val; + pltgot = entry->d_un.d_ptr; + break; case DT_MIPS_LOCAL_GOTNO: local_gotno = entry->d_un.d_val; break; @@ -9259,6 +9301,18 @@ process_mips_specific (FILE *file) case DT_MIPS_SYMTABNO: symtabno = entry->d_un.d_val; break; + case DT_MIPS_PLTGOT: + mips_pltgot = entry->d_un.d_ptr; + break; + case DT_PLTREL: + pltrel = entry->d_un.d_val; + break; + case DT_PLTRELSZ: + pltrelsz = entry->d_un.d_val; + break; + case DT_JMPREL: + jmprel = entry->d_un.d_ptr; + break; default: break; } @@ -9691,6 +9745,73 @@ process_mips_specific (FILE *file) free (data); } + if (mips_pltgot != 0 && jmprel != 0 && pltrel != 0 && pltrelsz != 0) + { + bfd_vma entry, end; + size_t offset, rel_offset; + unsigned long count, i; + unsigned char *data; + int addr_size, sym_width; + Elf_Internal_Rela *rels; + + rel_offset = offset_from_vma (file, jmprel, pltrelsz); + if (pltrel == DT_RELA) + { + if (!slurp_rela_relocs (file, rel_offset, pltrelsz, &rels, &count)) + return 0; + } + else + { + if (!slurp_rel_relocs (file, rel_offset, pltrelsz, &rels, &count)) + return 0; + } + + entry = mips_pltgot; + addr_size = (is_32bit_elf ? 4 : 8); + end = mips_pltgot + (2 + count) * addr_size; + + offset = offset_from_vma (file, mips_pltgot, end - mips_pltgot); + data = get_data (NULL, file, offset, end - mips_pltgot, 1, _("PLT GOT")); + printf (_("\nPLT GOT:\n\n")); + printf (_(" Reserved entries:\n")); + printf (_(" %*s %*s Purpose\n"), + addr_size * 2, "Address", addr_size * 2, "Initial"); + entry = print_mips_pltgot_entry (data, mips_pltgot, entry); + printf (" PLT lazy resolver\n"); + entry = print_mips_pltgot_entry (data, mips_pltgot, entry); + printf (" Module pointer\n"); + printf ("\n"); + + printf (_(" Entries:\n")); + printf (_(" %*s %*s %*s %-7s %3s %s\n"), + addr_size * 2, "Address", + addr_size * 2, "Initial", + addr_size * 2, "Sym.Val.", "Type", "Ndx", "Name"); + sym_width = (is_32bit_elf ? 80 : 160) - 17 - addr_size * 6 - 1; + for (i = 0; i < count; i++) + { + Elf_Internal_Sym *psym; + + psym = dynamic_symbols + get_reloc_symindex (rels[i].r_info); + entry = print_mips_pltgot_entry (data, mips_pltgot, entry); + printf (" "); + print_vma (psym->st_value, LONG_HEX); + printf (" %-7s %3s ", + get_symbol_type (ELF_ST_TYPE (psym->st_info)), + get_symbol_index_type (psym->st_shndx)); + if (VALID_DYNAMIC_NAME (psym->st_name)) + print_symbol (sym_width, GET_DYNAMIC_NAME (psym->st_name)); + else + printf ("<corrupt: %14ld>", psym->st_name); + printf ("\n"); + } + printf ("\n"); + + if (data) + free (data); + free (rels); + } + return 1; } |