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1bbce13264
* 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.
103 lines
2.5 KiB
Plaintext
103 lines
2.5 KiB
Plaintext
# GOT layout:
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#
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# -32752: lazy resolution function
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# -32748: reserved for module pointer
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# -32744: extf2's GOT entry (undefined 0)
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# -32740: extf3's GOT entry (PLT entry)
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# -32736: extd2's GOT entry (copy reloc)
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# -32732: extf1's GOT entry (.MIPS.stubs entry)
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# -32728: extd1's GOT entry (undefined 0)
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# -32724: extf4's GOT entry (PLT entry)
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# -32620: extd4's GOT entry (undefined 0, reloc only)
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.*
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Disassembly of section \.plt:
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00043040 <.*>:
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.*: 3c0e0008 lui t2,0x8
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.*: 8dd91000 lw t9,4096\(t2\)
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.*: 25ce1000 addiu t2,t2,4096
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.*: 030ec023 subu t8,t8,t2
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.*: 03e07821 move t3,ra
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.*: 0018c082 srl t8,t8,0x2
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.*: 0320f809 jalr t9
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.*: 2718fffe addiu t8,t8,-2
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00043060 <extf4@plt>:
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.*: 3c0f0008 lui t3,0x8
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.*: 8df91008 lw t9,4104\(t3\)
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.*: 03200008 jr t9
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.*: 25f81008 addiu t8,t3,4104
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00043070 <extf5@plt>:
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.*: 3c0f0008 lui t3,0x8
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.*: 8df9100c lw t9,4108\(t3\)
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.*: 03200008 jr t9
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.*: 25f8100c addiu t8,t3,4108
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00043080 <extf3@plt>:
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.*: 3c0f0008 lui t3,0x8
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.*: 8df91010 lw t9,4112\(t3\)
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.*: 03200008 jr t9
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.*: 25f81010 addiu t8,t3,4112
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Disassembly of section \.text:
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00044000 <.*>:
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\.\.\.
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00044008 <\.pic\.f1>:
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44008: 3c190004 lui t9,0x4
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4400c: 27394010 addiu t9,t9,16400
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00044010 <f1>:
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44010: 0c011013 jal 4404c <f3>
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44014: 3c020004 lui v0,0x4
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44018: 03e00008 jr ra
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4401c: 24424020 addiu v0,v0,16416
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00044020 <f2>:
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44020: 3c1c0006 lui gp,0x6
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44024: 0399e021 addu gp,gp,t9
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44028: 279c3fd0 addiu gp,gp,16336
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4402c: 8f998024 lw t9,-32732\(gp\)
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44030: 8f848018 lw a0,-32744\(gp\)
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44034: 8f858028 lw a1,-32728\(gp\)
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44038: 0320f809 jalr t9
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4403c: 8f868020 lw a2,-32736\(gp\)
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44040: 8f99801c lw t9,-32740\(gp\)
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44044: 03200008 jr t9
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44048: 8f84802c lw a0,-32724\(gp\)
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0004404c <f3>:
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4404c: 03e00008 jr ra
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44050: 00000000 nop
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\.\.\.
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00044060 <__start>:
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44060: 0c011002 jal 44008 <\.pic\.f1>
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44064: 00000000 nop
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44068: 3c020004 lui v0,0x4
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4406c: 24424020 addiu v0,v0,16416
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44070: 0c010c20 jal 43080 <extf3@plt>
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44074: 00000000 nop
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44078: 0c010c18 jal 43060 <extf4@plt>
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4407c: 00000000 nop
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44080: 0c010c1c jal 43070 <extf5@plt>
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44084: 00000000 nop
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44088: 3c02000a lui v0,0xa
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4408c: 24422000 addiu v0,v0,8192
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44090: 3c02000a lui v0,0xa
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44094: 24422018 addiu v0,v0,8216
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\.\.\.
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Disassembly of section \.MIPS\.stubs:
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000440a0 <_MIPS_STUBS_>:
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440a0: 8f998010 lw t9,-32752\(gp\)
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440a4: 03e07821 move t3,ra
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440a8: 0320f809 jalr t9
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440ac: 24180009 li t8,9
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\.\.\.
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