bfd/
* elfxx-mips.h (_bfd_mips_elf_get_synthetic_symtab): New prototype. * elf32-mips.c (elf_backend_plt_sym_val): Remove macro. (bfd_elf32_get_synthetic_symtab): New macro. * elfxx-mips.c (plt_entry): New structure. (mips_elf_link_hash_entry): Add use_plt_entry member. (mips_elf_link_hash_table): Rename plt_entry_size member to plt_mips_entry_size. Add plt_comp_entry_size, plt_mips_offset, plt_comp_offset, plt_got_index entries and plt_header_is_comp members. (STUB_LW_MICROMIPS, STUB_MOVE_MICROMIPS): New macros. (STUB_LUI_MICROMIPS, STUB_JALR_MICROMIPS): Likewise. (STUB_ORI_MICROMIPS, STUB_LI16U_MICROMIPS): Likewise. (STUB_LI16S_MICROMIPS): Likewise. (MICROMIPS_FUNCTION_STUB_NORMAL_SIZE): Likewise. (MICROMIPS_FUNCTION_STUB_BIG_SIZE): Likewise. (micromips_o32_exec_plt0_entry): New variable. (mips16_o32_exec_plt_entry): Likewise. (micromips_o32_exec_plt_entry): Likewise. (mips_elf_link_hash_newfunc): Initialize use_plt_entry. (mips_elf_output_extsym): Update to use gotplt_union's plist member rather than offset. (mips_elf_gotplt_index): Likewise. Remove the VxWorks restriction. Use MIPS_ELF_GOT_SIZE to calculate GOT address. (mips_elf_count_got_symbols): Update to use gotplt_union's plist member rather than offset. (mips_elf_calculate_relocation): Handle MIPS16/microMIPS PLT entries. (_bfd_mips_elf_create_dynamic_sections): Don't set PLT sizes here. (mips_elf_make_plt_record): New function. (_bfd_mips_elf_check_relocs): Update comment. Record occurences of JAL relocations that might need a PLT entry. (_bfd_mips_elf_adjust_dynamic_symbol): Update to use gotplt_union's plist member rather than offset. Set individual PLT entry sizes here. Handle MIPS16/microMIPS PLT entries. Don't set the symbol's value in the symbol table for PLT references here. Don't set the PLT or PLT GOT section sizes here. (mips_elf_estimate_stub_size): Handle microMIPS stubs. (mips_elf_allocate_lazy_stub): Likewise. (mips_elf_lay_out_lazy_stubs): Likewise. Define a _MIPS_STUBS_ magic symbol. (mips_elf_set_plt_sym_value): New function. (_bfd_mips_elf_size_dynamic_sections): Set PLT header size and PLT and PLT GOT section sizes here. Set the symbol values in the symbol table for PLT references here. Handle microMIPS annotation of the _PROCEDURE_LINKAGE_TABLE_ magic symbol. (_bfd_mips_elf_finish_dynamic_symbol): Update to use gotplt_union's plist member rather than offset. Handle MIPS16/microMIPS PLT entries. Handle microMIPS stubs. (_bfd_mips_vxworks_finish_dynamic_symbol): Update to use gotplt_union's plist member rather than offset. Use MIPS_ELF_GOT_SIZE to calculate GOT address. (mips_finish_exec_plt): Handle microMIPS PLT. Return status. (_bfd_mips_elf_finish_dynamic_sections): Handle result from mips_finish_exec_plt. (_bfd_mips_elf_link_hash_table_create): Update to use gotplt_union's plist member rather than offset. (_bfd_mips_elf_get_synthetic_symtab): New function. include/elf/ * mips.h (ELF_ST_IS_MIPS_PLT): Respect STO_MIPS16 setting. (ELF_ST_SET_MIPS_PLT): Likewise. gdb/ * mips-tdep.c (mips_elf_make_msymbol_special): Handle MIPS16 and microMIPS synthetic symbols. ld/ * emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed as close to .plt as possible. * scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and $PLT_NEXT_DATA variables. ld/testsuite/ * ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support. * ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_ magic symbol. * ld-mips-elf/pic-and-nonpic-3b.dd: Likewise. * ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise. * ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise. * ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise. * ld-mips-elf/stub-dynsym-1-10000.d: Likewise. * ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise. * ld-mips-elf/stub-dynsym-1-7fff.d: Likewise. * ld-mips-elf/stub-dynsym-1-8000.d: Likewise. * ld-mips-elf/stub-dynsym-1-fff0.d: Likewise. * ld-mips-elf/tlslib-o32.d: Likewise. opcodes/ * mips-dis.c (is_mips16_plt_tail): New function. (print_insn_mips16): Handle MIPS16 PLT entry's GOT slot address word. (is_compressed_mode_p): Handle MIPS16/microMIPS PLT entries.
This commit is contained in:
Maciej W. Rozycki
parent
b652c496ac
commit
1bbce13264
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@ -1,3 +1,66 @@
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2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
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* elfxx-mips.h (_bfd_mips_elf_get_synthetic_symtab): New
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prototype.
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* elf32-mips.c (elf_backend_plt_sym_val): Remove macro.
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(bfd_elf32_get_synthetic_symtab): New macro.
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* elfxx-mips.c (plt_entry): New structure.
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(mips_elf_link_hash_entry): Add use_plt_entry member.
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(mips_elf_link_hash_table): Rename plt_entry_size member to
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plt_mips_entry_size. Add plt_comp_entry_size, plt_mips_offset,
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plt_comp_offset, plt_got_index entries and plt_header_is_comp
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members.
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(STUB_LW_MICROMIPS, STUB_MOVE_MICROMIPS): New macros.
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(STUB_LUI_MICROMIPS, STUB_JALR_MICROMIPS): Likewise.
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(STUB_ORI_MICROMIPS, STUB_LI16U_MICROMIPS): Likewise.
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(STUB_LI16S_MICROMIPS): Likewise.
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(MICROMIPS_FUNCTION_STUB_NORMAL_SIZE): Likewise.
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(MICROMIPS_FUNCTION_STUB_BIG_SIZE): Likewise.
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(micromips_o32_exec_plt0_entry): New variable.
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(mips16_o32_exec_plt_entry): Likewise.
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(micromips_o32_exec_plt_entry): Likewise.
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(mips_elf_link_hash_newfunc): Initialize use_plt_entry.
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(mips_elf_output_extsym): Update to use gotplt_union's plist
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member rather than offset.
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(mips_elf_gotplt_index): Likewise. Remove the VxWorks
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restriction. Use MIPS_ELF_GOT_SIZE to calculate GOT address.
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(mips_elf_count_got_symbols): Update to use gotplt_union's plist
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member rather than offset.
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(mips_elf_calculate_relocation): Handle MIPS16/microMIPS PLT
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entries.
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(_bfd_mips_elf_create_dynamic_sections): Don't set PLT sizes
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here.
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(mips_elf_make_plt_record): New function.
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(_bfd_mips_elf_check_relocs): Update comment. Record occurences
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of JAL relocations that might need a PLT entry.
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(_bfd_mips_elf_adjust_dynamic_symbol): Update to use
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gotplt_union's plist member rather than offset. Set individual
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PLT entry sizes here. Handle MIPS16/microMIPS PLT entries.
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Don't set the symbol's value in the symbol table for PLT
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references here. Don't set the PLT or PLT GOT section sizes
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here.
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(mips_elf_estimate_stub_size): Handle microMIPS stubs.
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(mips_elf_allocate_lazy_stub): Likewise.
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(mips_elf_lay_out_lazy_stubs): Likewise. Define a _MIPS_STUBS_
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magic symbol.
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(mips_elf_set_plt_sym_value): New function.
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(_bfd_mips_elf_size_dynamic_sections): Set PLT header size and
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PLT and PLT GOT section sizes here. Set the symbol values in
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the symbol table for PLT references here. Handle microMIPS
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annotation of the _PROCEDURE_LINKAGE_TABLE_ magic symbol.
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(_bfd_mips_elf_finish_dynamic_symbol): Update to use
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gotplt_union's plist member rather than offset. Handle
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MIPS16/microMIPS PLT entries. Handle microMIPS stubs.
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(_bfd_mips_vxworks_finish_dynamic_symbol): Update to use
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gotplt_union's plist member rather than offset. Use
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MIPS_ELF_GOT_SIZE to calculate GOT address.
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(mips_finish_exec_plt): Handle microMIPS PLT. Return status.
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(_bfd_mips_elf_finish_dynamic_sections): Handle result from
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mips_finish_exec_plt.
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(_bfd_mips_elf_link_hash_table_create): Update to use
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gotplt_union's plist member rather than offset.
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(_bfd_mips_elf_get_synthetic_symtab): New function.
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2013-06-24 Wawa <caojinyu@msn.com>
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PR 15657
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@ -2366,7 +2366,6 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
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#define elf_backend_default_use_rela_p 0
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#define elf_backend_sign_extend_vma TRUE
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#define elf_backend_plt_readonly 1
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#define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val
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#define elf_backend_discard_info _bfd_mips_elf_discard_info
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#define elf_backend_ignore_discarded_relocs \
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@ -2378,6 +2377,7 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = {
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mips_elf_is_local_label_name
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#define bfd_elf32_bfd_is_target_special_symbol \
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_bfd_mips_elf_is_target_special_symbol
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#define bfd_elf32_get_synthetic_symtab _bfd_mips_elf_get_synthetic_symtab
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#define bfd_elf32_find_nearest_line _bfd_mips_elf_find_nearest_line
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#define bfd_elf32_find_inliner_info _bfd_mips_elf_find_inliner_info
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#define bfd_elf32_new_section_hook _bfd_mips_elf_new_section_hook
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@ -2505,7 +2505,6 @@ mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
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#define elf_backend_default_use_rela_p 1
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#undef elf_backend_got_header_size
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#define elf_backend_got_header_size (4 * 3)
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#undef elf_backend_plt_sym_val
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#undef elf_backend_finish_dynamic_symbol
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#define elf_backend_finish_dynamic_symbol \
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@ -2531,4 +2530,6 @@ mips_vxworks_final_write_processing (bfd *abfd, bfd_boolean linker)
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#undef elf_backend_symbol_processing
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/* NOTE: elf_backend_rela_normal is not defined for MIPS. */
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#undef bfd_elf32_get_synthetic_symtab
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#include "elf32-target.h"
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1124
bfd/elfxx-mips.c
1124
bfd/elfxx-mips.c
File diff suppressed because it is too large
Load Diff
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@ -152,6 +152,8 @@ extern bfd_boolean _bfd_mips_elf_init_stubs
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asection *(*) (const char *, asection *, asection *));
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extern bfd_vma _bfd_mips_elf_plt_sym_val
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(bfd_vma, const asection *, const arelent *rel);
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extern long _bfd_mips_elf_get_synthetic_symtab
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(bfd *, long, asymbol **, long, asymbol **, asymbol **);
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extern void _bfd_mips_post_process_headers
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(bfd *abfd, struct bfd_link_info *link_info);
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@ -1,3 +1,8 @@
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2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
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* mips-tdep.c (mips_elf_make_msymbol_special): Handle MIPS16 and
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microMIPS synthetic symbols.
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2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
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* objfiles.h (pc_in_section): New prototype.
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@ -343,8 +343,9 @@ make_compact_addr (CORE_ADDR addr)
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"special", i.e. refers to a MIPS16 or microMIPS function, and sets
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one of the "special" bits in a minimal symbol to mark it accordingly.
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The test checks an ELF-private flag that is valid for true function
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symbols only; in particular synthetic symbols such as for PLT stubs
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have no ELF-private part at all.
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symbols only; for synthetic symbols such as for PLT stubs that have
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no ELF-private part at all the MIPS BFD backend arranges for this
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information to be carried in the asymbol's udata field instead.
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msymbol_is_mips16 and msymbol_is_micromips test the "special" bit
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in a minimal symbol. */
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@ -353,13 +354,18 @@ static void
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mips_elf_make_msymbol_special (asymbol * sym, struct minimal_symbol *msym)
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{
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elf_symbol_type *elfsym = (elf_symbol_type *) sym;
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unsigned char st_other;
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if ((sym->flags & BSF_SYNTHETIC) != 0)
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if ((sym->flags & BSF_SYNTHETIC) == 0)
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st_other = elfsym->internal_elf_sym.st_other;
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else if ((sym->flags & BSF_FUNCTION) != 0)
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st_other = sym->udata.i;
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else
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return;
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if (ELF_ST_IS_MICROMIPS (elfsym->internal_elf_sym.st_other))
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if (ELF_ST_IS_MICROMIPS (st_other))
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MSYMBOL_TARGET_FLAG_2 (msym) = 1;
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else if (ELF_ST_IS_MIPS16 (elfsym->internal_elf_sym.st_other))
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else if (ELF_ST_IS_MIPS16 (st_other))
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MSYMBOL_TARGET_FLAG_1 (msym) = 1;
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}
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@ -1,3 +1,8 @@
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2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
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* mips.h (ELF_ST_IS_MIPS_PLT): Respect STO_MIPS16 setting.
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(ELF_ST_SET_MIPS_PLT): Likewise.
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2013-06-19 Will Newton <will.newton@linaro.org>
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* aarch64.h: Remove R_AARCH64_IRELATIVE.
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@ -803,8 +803,14 @@ extern void bfd_mips_elf32_swap_reginfo_out
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PLT entries and traditional MIPS lazy binding stubs. We mark the former
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with STO_MIPS_PLT to distinguish them from the latter. */
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#define STO_MIPS_PLT 0x8
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#define ELF_ST_IS_MIPS_PLT(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PLT)
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#define ELF_ST_SET_MIPS_PLT(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PLT)
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#define ELF_ST_IS_MIPS_PLT(other) \
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((ELF_ST_IS_MIPS16 (other) \
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? ((other) & (~STO_MIPS16 & STO_MIPS_FLAGS)) \
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: ((other) & STO_MIPS_FLAGS)) == STO_MIPS_PLT)
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#define ELF_ST_SET_MIPS_PLT(other) \
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((ELF_ST_IS_MIPS16 (other) \
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? ((other) & (STO_MIPS16 | ~STO_MIPS_FLAGS)) \
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: ((other) & ~STO_MIPS_FLAGS)) | STO_MIPS_PLT)
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/* This value is used to mark PIC functions in an object that mixes
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PIC and non-PIC. Note that this bit overlaps with STO_MIPS16,
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@ -1,3 +1,10 @@
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2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
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* emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed
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as close to .plt as possible.
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* scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and
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$PLT_NEXT_DATA variables.
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2013-06-23 Richard Sandiford <rdsandiford@googlemail.com>
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* Makefile.am (ALL_EMULATION_SOURCES): Move MIPS ELF emulations to...
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@ -8,3 +8,10 @@ LITTLE_OUTPUT_FORMAT="elf32-tradlittlemips"
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unset DATA_ADDR
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SHLIB_TEXT_START_ADDR=0
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ENTRY=__start
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# Place .got.plt as close to .plt as possible so that the former can be
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# referred to from the latter with the microMIPS ADDIUPC instruction
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# that only has a span of +/-16MB.
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PLT_NEXT_DATA=
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INITIAL_READWRITE_SECTIONS=$OTHER_READWRITE_SECTIONS
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unset OTHER_READWRITE_SECTIONS
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@ -10,6 +10,7 @@
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# OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
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# (e.g., .PARISC.milli)
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# OTHER_TEXT_SECTIONS - these get put in .text when relocating
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# INITIAL_READWRITE_SECTIONS - at start of data segment (after relro)
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# OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
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# (e.g., .PARISC.global)
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# OTHER_RELRO_SECTIONS - other than .data.rel.ro ...
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@ -33,6 +34,7 @@
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# OTHER_SDATA_SECTIONS - sections just after .sdata.
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# OTHER_BSS_SYMBOLS - symbols that appear at the start of the
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# .bss section besides __bss_start.
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# PLT_NEXT_DATA - .plt next to data segment when .plt is in text segment.
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# DATA_PLT - .plt should be in data segment, not text segment.
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# PLT_BEFORE_GOT - .plt just before .got when .plt is in data segement.
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# BSS_PLT - .plt should be in bss segment
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@ -132,7 +134,7 @@ if test -z "$PLT"; then
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PLT=".plt ${RELOCATING-0} : { *(.plt)${IREL_IN_PLT+ *(.iplt)} }
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${IREL_IN_PLT-$IPLT}"
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fi
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test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=yes
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test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=
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if test -z "$GOT"; then
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if test -z "$SEPARATE_GOTPLT"; then
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GOT=".got ${RELOCATING-0} : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }"
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@ -463,7 +465,7 @@ cat <<EOF
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${RELOCATING+${INIT_END}}
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} ${FILL}
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${TEXT_PLT+${PLT}}
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${TEXT_PLT+${PLT_NEXT_DATA-${PLT}}}
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${TINY_READONLY_SECTION}
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.text ${RELOCATING-0} :
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{
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@ -527,6 +529,7 @@ cat <<EOF
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/* These sections are generated by the Sun/Oracle C++ compiler. */
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.exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges
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.exception_ranges*) }
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${TEXT_PLT+${PLT_NEXT_DATA+${PLT}}}
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/* Adjust the address for the data segment. We want to adjust up to
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the same address within the page on the next page up. */
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@ -562,6 +565,7 @@ cat <<EOF
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${DATA_GOT+${RELRO_NOW+${GOTPLT}}}
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${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT+${GOT}}}}
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${RELOCATING+${DATA_SEGMENT_RELRO_END}}
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${INITIAL_READWRITE_SECTIONS}
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${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT-${GOT}}}}
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${DATA_GOT+${RELRO_NOW-${GOTPLT}}}
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@ -1,3 +1,19 @@
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2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
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* ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support.
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* ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_
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magic symbol.
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* ld-mips-elf/pic-and-nonpic-3b.dd: Likewise.
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* ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise.
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* ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise.
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* ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise.
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* ld-mips-elf/stub-dynsym-1-10000.d: Likewise.
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* ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise.
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* ld-mips-elf/stub-dynsym-1-7fff.d: Likewise.
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* ld-mips-elf/stub-dynsym-1-8000.d: Likewise.
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* ld-mips-elf/stub-dynsym-1-fff0.d: Likewise.
|
||||
* ld-mips-elf/tlslib-o32.d: Likewise.
|
||||
|
||||
2013-06-19 Will Newton <will.newton@linaro.org>
|
||||
|
||||
* ld-aarch64/aarch64-elf.exp: Remove ifunc tests.
|
||||
|
|
|
|||
|
|
@ -28,8 +28,8 @@ Disassembly of section \.text:
|
|||
4400034: f89e 0020 sw a0,32\(s8\)
|
||||
4400038: f8be 0024 sw a1,36\(s8\)
|
||||
440003c: 41a2 0440 lui v0,0x440
|
||||
4400040: 3082 02a0 addiu a0,v0,672
|
||||
4400044: f110 0028 jalx 44000a0 <printf@plt>
|
||||
4400040: 3082 0290 addiu a0,v0,656
|
||||
4400044: f620 004c jal 4400098 <printf@micromipsplt>
|
||||
4400048: 0000 0000 nop
|
||||
440004c: f620 0010 jal 4400020 <internal_function>
|
||||
4400050: 0000 0000 nop
|
||||
|
|
@ -44,17 +44,18 @@ Disassembly of section \.text:
|
|||
Disassembly of section \.plt:
|
||||
|
||||
04400080 <_PROCEDURE_LINKAGE_TABLE_>:
|
||||
4400080: 3c1c0440 lui gp,0x440
|
||||
4400084: 8f9900d8 lw t9,216\(gp\)
|
||||
4400088: 279c00d8 addiu gp,gp,216
|
||||
440008c: 031cc023 subu t8,t8,gp
|
||||
4400090: 03e07821 move t7,ra
|
||||
4400094: 0018c082 srl t8,t8,0x2
|
||||
4400098: 0320f809 jalr t9
|
||||
440009c: 2718fffe addiu t8,t8,-2
|
||||
4400080: 7980 0012 addiu v1,\$pc,72
|
||||
4400084: ff23 0000 lw t9,0\(v1\)
|
||||
4400088: 0535 subu v0,v0,v1
|
||||
440008a: 2525 srl v0,v0,2
|
||||
440008c: 3302 fffe addiu t8,v0,-2
|
||||
4400090: 0dff move t7,ra
|
||||
4400092: 45f9 jalrs t9
|
||||
4400094: 0f83 move gp,v1
|
||||
4400096: 0c00 nop
|
||||
|
||||
044000a0 <printf@plt>:
|
||||
44000a0: 3c0f0440 lui t7,0x440
|
||||
44000a4: 8df900e0 lw t9,224\(t7\)
|
||||
44000a8: 03200008 jr t9
|
||||
44000ac: 25f800e0 addiu t8,t7,224
|
||||
04400098 <printf@micromipsplt>:
|
||||
4400098: 7900 000e addiu v0,\$pc,56
|
||||
440009c: ff22 0000 lw t9,0\(v0\)
|
||||
44000a0: 4599 jr t9
|
||||
44000a2: 0f02 move t8,v0
|
||||
|
|
|
|||
|
|
@ -31,7 +31,7 @@ Disassembly of section \.text:
|
|||
#...
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
00000c00 <.MIPS.stubs>:
|
||||
00000c00 <_MIPS_STUBS_>:
|
||||
c00: 8f998010 lw t9,-32752\(gp\)
|
||||
c04: 03e07821 move t7,ra
|
||||
c08: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -42,9 +42,10 @@ Disassembly of section \.text:
|
|||
.*: 03200008 jr t9
|
||||
.*: 00000000 nop
|
||||
.*: 00000000 nop
|
||||
Disassembly of section .MIPS.stubs:
|
||||
|
||||
00044030 <\.MIPS\.stubs>:
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
00044030 <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -91,9 +91,10 @@ Disassembly of section \.text:
|
|||
44090: 3c02000a lui v0,0xa
|
||||
44094: 24422018 addiu v0,v0,8216
|
||||
\.\.\.
|
||||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
000440a0 <\.MIPS\.stubs>:
|
||||
000440a0 <_MIPS_STUBS_>:
|
||||
440a0: 8f998010 lw t9,-32752\(gp\)
|
||||
440a4: 03e07821 move t3,ra
|
||||
440a8: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -91,9 +91,10 @@ Disassembly of section \.text:
|
|||
44090: 3c02000a lui v0,0xa
|
||||
44094: 24422018 addiu v0,v0,8216
|
||||
\.\.\.
|
||||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
0+440a0 <\.MIPS\.stubs>:
|
||||
0+440a0 <_MIPS_STUBS_>:
|
||||
440a0: df998010 ld t9,-32752\(gp\)
|
||||
440a4: 03e0782d move t3,ra
|
||||
440a8: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -91,9 +91,10 @@ Disassembly of section \.text:
|
|||
44090: 3c02000a lui v0,0xa
|
||||
44094: 24422018 addiu v0,v0,8216
|
||||
\.\.\.
|
||||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
000440a0 <\.MIPS\.stubs>:
|
||||
000440a0 <_MIPS_STUBS_>:
|
||||
440a0: 8f998010 lw t9,-32752\(gp\)
|
||||
440a4: 03e07821 move t7,ra
|
||||
440a8: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
.* <\.MIPS.stubs>:
|
||||
.* <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 3c180001 lui t8,0x1
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
.* <\.MIPS.stubs>:
|
||||
.* <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 3c180002 lui t8,0x2
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
.* <\.MIPS.stubs>:
|
||||
.* <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
.* <\.MIPS.stubs>:
|
||||
.* <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
|
||||
Disassembly of section \.MIPS\.stubs:
|
||||
|
||||
.* <\.MIPS.stubs>:
|
||||
.* <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -35,9 +35,10 @@ Disassembly of section .text:
|
|||
.*: 03e00008 jr ra
|
||||
.*: 27bd0010 addiu sp,sp,16
|
||||
...
|
||||
|
||||
Disassembly of section .MIPS.stubs:
|
||||
|
||||
.* <.MIPS.stubs>:
|
||||
.* <_MIPS_STUBS_>:
|
||||
.*: 8f998010 lw t9,-32752\(gp\)
|
||||
.*: 03e07821 move t7,ra
|
||||
.*: 0320f809 jalr t9
|
||||
|
|
|
|||
|
|
@ -1,3 +1,10 @@
|
|||
2013-06-24 Maciej W. Rozycki <macro@codesourcery.com>
|
||||
|
||||
* mips-dis.c (is_mips16_plt_tail): New function.
|
||||
(print_insn_mips16): Handle MIPS16 PLT entry's GOT slot address
|
||||
word.
|
||||
(is_compressed_mode_p): Handle MIPS16/microMIPS PLT entries.
|
||||
|
||||
2013-06-21 DJ Delorie <dj@redhat.com>
|
||||
|
||||
* msp430-decode.opc: New.
|
||||
|
|
|
|||
|
|
@ -2056,6 +2056,23 @@ print_mips16_insn_arg (char type,
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
/* Check if the given address is the last word of a MIPS16 PLT entry.
|
||||
This word is data and depending on the value it may interfere with
|
||||
disassembly of further PLT entries. We make use of the fact PLT
|
||||
symbols are marked BSF_SYNTHETIC. */
|
||||
static bfd_boolean
|
||||
is_mips16_plt_tail (struct disassemble_info *info, bfd_vma addr)
|
||||
{
|
||||
if (info->symbols
|
||||
&& info->symbols[0]
|
||||
&& (info->symbols[0]->flags & BSF_SYNTHETIC)
|
||||
&& addr == bfd_asymbol_value (info->symbols[0]) + 12)
|
||||
return TRUE;
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* Disassemble mips16 instructions. */
|
||||
|
||||
static int
|
||||
|
|
@ -2063,7 +2080,7 @@ print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
|
|||
{
|
||||
const fprintf_ftype infprintf = info->fprintf_func;
|
||||
int status;
|
||||
bfd_byte buffer[2];
|
||||
bfd_byte buffer[4];
|
||||
int length;
|
||||
int insn;
|
||||
bfd_boolean use_extend;
|
||||
|
|
@ -2076,11 +2093,32 @@ print_insn_mips16 (bfd_vma memaddr, struct disassemble_info *info)
|
|||
info->insn_info_valid = 1;
|
||||
info->branch_delay_insns = 0;
|
||||
info->data_size = 0;
|
||||
info->insn_type = dis_nonbranch;
|
||||
info->target = 0;
|
||||
info->target2 = 0;
|
||||
|
||||
status = (*info->read_memory_func) (memaddr, buffer, 2, info);
|
||||
/* Decode PLT entry's GOT slot address word. */
|
||||
if (is_mips16_plt_tail (info, memaddr))
|
||||
{
|
||||
info->insn_type = dis_noninsn;
|
||||
status = (*info->read_memory_func) (memaddr, buffer, 4, info);
|
||||
if (status == 0)
|
||||
{
|
||||
unsigned int gotslot;
|
||||
|
||||
if (info->endian == BFD_ENDIAN_BIG)
|
||||
gotslot = bfd_getb32 (buffer);
|
||||
else
|
||||
gotslot = bfd_getl32 (buffer);
|
||||
infprintf (is, ".word\t0x%x", gotslot);
|
||||
|
||||
return 4;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
info->insn_type = dis_nonbranch;
|
||||
status = (*info->read_memory_func) (memaddr, buffer, 2, info);
|
||||
}
|
||||
if (status != 0)
|
||||
{
|
||||
(*info->memory_error_func) (status, memaddr, info);
|
||||
|
|
@ -2963,27 +3001,26 @@ print_insn_micromips (bfd_vma memaddr, struct disassemble_info *info)
|
|||
static bfd_boolean
|
||||
is_compressed_mode_p (struct disassemble_info *info)
|
||||
{
|
||||
elf_symbol_type *symbol;
|
||||
int pos;
|
||||
int i;
|
||||
int l;
|
||||
|
||||
for (i = 0; i < info->num_symbols; i++)
|
||||
{
|
||||
pos = info->symtab_pos + i;
|
||||
|
||||
if (bfd_asymbol_flavour (info->symtab[pos]) != bfd_target_elf_flavour)
|
||||
continue;
|
||||
|
||||
if (info->symtab[pos]->section != info->section)
|
||||
continue;
|
||||
|
||||
symbol = (elf_symbol_type *) info->symtab[pos];
|
||||
if ((!micromips_ase
|
||||
&& ELF_ST_IS_MIPS16 (symbol->internal_elf_sym.st_other))
|
||||
|| (micromips_ase
|
||||
&& ELF_ST_IS_MICROMIPS (symbol->internal_elf_sym.st_other)))
|
||||
return 1;
|
||||
}
|
||||
for (i = info->symtab_pos, l = i + info->num_symbols; i < l; i++)
|
||||
if (((info->symtab[i])->flags & BSF_SYNTHETIC) != 0
|
||||
&& ((!micromips_ase
|
||||
&& ELF_ST_IS_MIPS16 ((*info->symbols)->udata.i))
|
||||
|| (micromips_ase
|
||||
&& ELF_ST_IS_MICROMIPS ((*info->symbols)->udata.i))))
|
||||
return 1;
|
||||
else if (bfd_asymbol_flavour (info->symtab[i]) == bfd_target_elf_flavour
|
||||
&& info->symtab[i]->section == info->section)
|
||||
{
|
||||
elf_symbol_type *symbol = (elf_symbol_type *) info->symtab[i];
|
||||
if ((!micromips_ase
|
||||
&& ELF_ST_IS_MIPS16 (symbol->internal_elf_sym.st_other))
|
||||
|| (micromips_ase
|
||||
&& ELF_ST_IS_MICROMIPS (symbol->internal_elf_sym.st_other)))
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue