28dbbc0203
bfd/
* elf-bfd.h (elf_object_id): Add XTENSA_ELF_TDATA.
* elf32-xtensa.c (elf_howto_table): Add TLS relocations.
(elf_xtensa_reloc_type_lookup): Likewise.
(TCB_SIZE): Define.
(elf_xtensa_link_hash_entry): New.
(GOT_UNKNOWN, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_TLS_ANY): Define.
(elf_xtensa_hash_entry): Define.
(elf_xtensa_obj_tdata): New.
(elf_xtensa_tdata): Define.
(elf_xtensa_local_got_tls_type): Define.
(elf_xtensa_local_tlsfunc_refcounts): Define.
(is_xtensa_elf): Define.
(elf_xtensa_mkobject): New.
(elf_xtensa_link_hash_table): Add tlsbase field.
(elf_xtensa_link_hash_newfunc): New.
(elf_xtensa_link_hash_table_create): Use elf_xtensa_link_hash_newfunc.
Create an entry for "_TLS_MODULE_BASE_" and save it in tlsbase field.
(elf_xtensa_copy_indirect_symbol): New.
(elf_xtensa_check_relocs): Rewrite to handle TLS relocations.
(elf_xtensa_gc_sweep_hook): Likewise.
(elf_xtensa_allocate_dynrelocs): Optimize away GOT entries for
TLSDESC_FN relocations when an IE reference is seen.
(elf_xtensa_allocate_local_got_size): Likewise.
(elf_xtensa_always_size_sections): New.
(dtpoff_base, tpoff): New.
(elf_xtensa_do_reloc): Handle TLS relocations.
(replace_tls_insn): New.
(IS_XTENSA_TLS_RELOC): Define.
(elf_xtensa_relocate_section): Handle TLS relocations.
(get_indirect_call_dest_reg): New.
(bfd_elf32_mkobject): Define.
(elf_backend_always_size_sections): New.
(elf_backend_copy_indirect_symbol): New.
* reloc.c (BFD_RELOC_XTENSA_TLSDESC_FN, BFD_RELOC_XTENSA_TLSDESC_ARG)
(BFD_RELOC_XTENSA_TLS_DTPOFF, BFD_RELOC_XTENSA_TLS_TPOFF)
(BFD_RELOC_XTENSA_TLS_FUNC, BFD_RELOC_XTENSA_TLS_ARG)
(BFD_RELOC_XTENSA_TLS_CALL): New.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
gas/
* config/tc-xtensa.c (O_tlsfunc, O_tlsarg, O_tlscall): Define.
(O_tpoff, O_dtpoff): Define.
(suffix_relocs): Add entries for TLS suffixes.
(xtensa_elf_cons): Check for invalid use of TLS relocations.
(map_operator_to_reloc): Add is_literal parameter and use it to
control translating TLS instruction relocations to the corresponding
literal relocations.
(xg_valid_literal_expression): Allow TLS operators.
(xg_build_to_insn): Copy TLS operators from pseudo-instruction
operands to generated literals.
(xg_assemble_literal): Handle TLS operators. Update call to
map_operator_to_reloc.
(md_assemble): Handle CALLXn.TLS pseudo-instruction.
(md_apply_fix): Handle TLS relocations.
(emit_single_op): Handle TLS operators.
(convert_frag_immed): Update call to map_operator_to_reloc.
(vinsn_to_insnbuf): Emit relocations for TLS-related instructions.
* config/xtensa-istack.h (tinsn_struct): Add tls_reloc field.
* config/xtensa-relax.c (append_literal_op): Add src_op parameter
to initialize the op_data field of the BuildOp.
(build_transition): Use it here to record the source operand
corresponding to a generated literal.
* config/xtensa-relax.h (build_op): Comment op_data use for literals.
include/elf/
* xtensa.h (R_XTENSA_TLSDESC_FN, R_XTENSA_TLSDESC_ARG)
(R_XTENSA_TLS_DTPOFF, R_XTENSA_TLS_TPOFF, R_XTENSA_TLS_FUNC)
(R_XTENSA_TLS_ARG, R_XTENSA_TLS_CALL): New.
ld/testsuite/
* ld-xtensa/tlsbin.dd, ld-xtensa/tlsbin.rd, ld-xtensa/tlsbin.s,
ld-xtensa/tlsbin.sd, ld-xtensa/tlsbin.td, ld-xtensa/tlslib.s,
ld-xtensa/tlspic.dd, ld-xtensa/tlspic.rd, ld-xtensa/tlspic.sd,
ld-xtensa/tlspic.td, ld-xtensa/tlspic1.s, ld-xtensa/tlspic2.s: New.
* ld-xtensa/xtensa.exp: Run them.
66 lines
2.5 KiB
Plaintext
66 lines
2.5 KiB
Plaintext
#source: tlsbin.s
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#as:
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#ld: -melf32xtensa
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#objdump: -drj.text --start-address=0x400238
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#target: xtensa*-*-linux*
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.*: +file format elf32-xtensa-.e
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Disassembly of section \.text:
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0+400238 <_start>:
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[0-9a-f]+: [0-9a-f]+[ ]+entry a1, 32
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# GD -> IE because variable is not defined in executable
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 4001ec <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
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# GD -> IE because variable is not defined in executable where
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# the variable is referenced through IE too
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 4001f4 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
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# GD -> LE with global variable defined in executable
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 4001fc <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
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# GD -> LE with local variable defined in executable
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 400204 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
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# GD -> LE with hidden variable defined in executable
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a10, 40020c <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a10, a10, a8
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# LD -> LE
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[0-9a-f]+: [0-9a-f]+[ ]+nop.*
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[0-9a-f]+: [0-9a-f]+[ ]+nop.*
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a10
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 400218 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 40021c <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
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# LD -> LE against hidden variables
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a12, 400220 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a12, a12, a10
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a13, 400224 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a13, a13, a10
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#
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# IE against global var
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a2
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a3, 400228 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a3, a3, a2
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# IE -> LE against global var defined in exec
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a4
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a5, 40022c <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a5, a5, a4
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# IE -> LE against local var
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a6
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a7, 400230 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a7, a7, a6
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# IE -> LE against hidden var
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[0-9a-f]+: [0-9a-f]+[ ]+rur.threadptr a8
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[0-9a-f]+: [0-9a-f]+[ ]+l32r a9, 400234 <.*>
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[0-9a-f]+: [0-9a-f]+[ ]+add.* a9, a9, a8
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#
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[0-9a-f]+: [0-9a-f]+[ ]+retw.*
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