40937810e1
bfd/
Add TLS support for 64-bit Sparc ELF.
* elf64-sparc.c (sparc64_elf_dyn_relocs,
sparc64_elf_link_hash_entry, sparc64_elf_obj_tdata): New structs.
(GOT_UNKNOWN, GOT_NORMAL, GOT_TLD_GD, GOT_TLD_IE,
sparc64_elf_hash_entry, sparc64_elf_tdata,
sparc64_elf_local_got_tls_type): New defines.
(sparc64_elf_mkobject): New function.
(sparc64_elf_link_hash_table): Add members for dynamic linker
sections PLT, RELPLT, DYNBSS, and RELBSS. Add tls_ldm_got
uion to track TLS GOT references. Add sym_sec to cache
mappings from local sym to section.
(link_hash_newfunc): New function.
(sparc64_elf_bfd_link_hash_table_create): Rename to
sparc64_elf_link_hash_table_create for consistency.
Pass link_hash_newfunc to _bfd_elf_link_hash_table_init.
(sparc64_elf_create_dynamic_sections): Initialize new section
members of sparc64_elf_link_hash_table. Only init srelbss
if not-shared.
(sparc64_elf_copy_indirect_symbol, sparc64_elf_tls_transition):
New functions.
(SPARC_NOP): Define.
(sparc64_elf_build_plt, sparc64_elf_plt_entry_offset,
sparc64_elf_plt_ptr_offset): Delete.
(sparc64_plt_entry_build): New function to build PLT entries
gradually instread of all at once at the end of linking.
(sparc64_elf_check_relocs): Delete dynobj, sgot, and srelgot
local vars. Get them from sparc64_elf_hash_table instead.
Check early on if r_symndx is in bounds. Handle TLS transitions.
Account for TLS GOT references and DF_STATIC_TLS, as needed.
For TLS relocs, record the tls_type in either
sparc64_elf_local_got_tls_type or sparc64_elf_hash_entry as
appropriate. For R_SPARC_TLS_{GD,LDM}_CALL, emit a reference
to the __tls_get_addr symbol. For PLT relocs, track references
via h->plt.refcount. When R_SPARC_{PC10,PC22,PC_HH22,PC_HM10,
PC_LM22} and h not-NULL, set h->non_got_ref. For global data
symbol references, count the number of relocations needed for
that symbol. For default switch case, don't error, this lets
the TLS relocs not explicitly handled by this function get
accepted.
(sparc64_elf_gc_mark_hook, sparc64_gc_sweep_hook): New functions.
(sparc64_elf_adjust_dynamic_symbol): Remove dynobj local var, get
it from sparc64_elf_hash_table. Store the real PLT offset
in h->plt.offset, and build PLT entries one at a time. Also
get .dynbss section pointer from htab.
(allocate_dynrelocs, readonly_dynrelocs,
sparc64_omit_section_dynsym): New functions.
(sparc64_elf_omit_section_dynsym): Use these new functions as
helpers.
(dtpoff_base, tpoff): New functions.
(sparc64_elf_relocate_section): Kill dynobj, sgot, and splt
locals, get them from sparc64_elf_hash_table. Handle TLS
relocations and refcounting in main relocation loop.
(sparc64_elf_finish_dynamic_symbol): Use
sparc64_elf_link_hash_table. Build PLT entries as we see
them. Handle TLS GOT relocations.
(sparc64_elf_finish_dynamic_sections): Get sgot and dynobj
from sparc64_elf_hash_table. Initialize only PLT header
not all entries since we not build PLT entries one by one.
(elf_backend_copy_indirect_symbol, bfd_elf64_mkobject,
elf_backend_gc_mark_hook, elf_backend_gc_sweep_hook,
elf_backend_can_gc_sections, elf_backend_can_refcount): Define.
ld/testsuite/
* ld-selective/sel-dump.exp: Do not exclude sparc64-*.
* ld-selective/selective.exp: Likewise.
* ld-sparc/sparc.exp: Add {32,64}-bit prefix to test
names so we know which one is failing. Run sparc64 TLS
tests on multi-arch sparc platforms.
* ld-sparc/tls64.sd, ld-sparc/tlssunbin64.dd,
ld-sparc/tlssunbin64.rd, ld/testsuite/ld-sparc/tlssunbin64.sd,
ld-sparc/tlssunbin64.td, ld-sparc/tlssunnopic64.dd,
ld-sparc/tlssunnopic64.rd, ld-sparc/tlssunnopic64.sd,
ld-sparc/tlssunpic64.dd, ld-sparc/tlssunpic64.rd,
ld-sparc/tlssunpic64.sd, ld-sparc/tlssunpic64.td): Update now
that sparc64 ELF does support TLS.
133 lines
5.6 KiB
R
133 lines
5.6 KiB
R
#source: tlssunbin64.s
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#as: --64
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#ld: -shared -melf64_sparc tmpdir/libtlslib64.so tmpdir/tlssunbinpic64.o
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#readelf: -WSsrl
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#target: sparc*-*-*
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There are 15 section headers, starting at offset 0x[0-9a-f]+:
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Section Headers:
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+\[Nr\] Name +Type +Address +Off +Size +ES Flg Lk Inf Al
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+\[ 0\] +NULL +0+ 0+ 0+ 00 +0 +0 +0
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+\[ 1\] .interp +.*
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+\[ 2\] .hash +.*
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+\[ 3\] .dynsym +.*
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+\[ 4\] .dynstr +.*
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+\[ 5\] .rela.dyn +.*
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+\[ 6\] .text +PROGBITS +0+101000 0+1000 0+11a4 00 +AX +0 +0 4096
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+\[ 7\] .tdata +PROGBITS +0+2021a4 0+21a4 0+0060 00 WAT +0 +0 +4
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+\[ 8\] .tbss +NOBITS +0+202204 0+2204 0+40 00 WAT +0 +0 +4
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+\[ 9\] .dynamic +DYNAMIC +0+202208 0+2208 0+100 10 +WA +4 +0 +8
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+\[10\] .got +PROGBITS +0+202308 0+2308 0+28 08 +WA +0 +0 +8
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+\[11\] .plt +.*
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+\[12\] .shstrtab +.*
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+\[13\] .symtab +.*
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+\[14\] .strtab +.*
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#...
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Elf file type is EXEC \(Executable file\)
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Entry point 0x102000
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There are 6 program headers, starting at offset [0-9]+
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Program Headers:
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+Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align
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+PHDR +0x0+40 0x0+100040 0x0+100040 0x0+150 0x0+150 R E 0x8
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+INTERP +0x0+190 0x0+100190 0x0+100190 0x0+19 0x0+19 R +0x1
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.*Requesting program interpreter.*
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+LOAD +0x0+ 0x0+100000 0x0+100000 0x0+21a4 0x0+21a4 R E 0x100000
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+LOAD +0x0+21a4 0x0+2021a4 0x0+2021a4 0x0+25c 0x0+25c RWE 0x100000
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+DYNAMIC +0x0+2208 0x0+202208 0x0+202208 0x0+100 0x0+100 RW +0x8
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+TLS +0x0+21a4 0x0+2021a4 0x0+2021a4 0x0+60 0x0+a0 R +0x4
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#...
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Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains 4 entries:
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+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
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0+202310 +0+10000004f R_SPARC_TLS_TPOFF64 +0+ +sG5 \+ 0
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0+202318 +0+30000004f R_SPARC_TLS_TPOFF64 +0+ +sG2 \+ 0
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0+202320 +0+70000004f R_SPARC_TLS_TPOFF64 +0+ +sG6 \+ 0
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0+202328 +0+80000004f R_SPARC_TLS_TPOFF64 +0+ +sG1 \+ 0
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Symbol table '.dynsym' contains 11 entries:
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+Num: +Value +Size Type +Bind +Vis +Ndx Name
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+0: 0+ +0 NOTYPE +LOCAL +DEFAULT +UND *
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+1: 0+ +0 TLS +GLOBAL DEFAULT +UND sG5
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+2: 0+202208 +0 OBJECT +GLOBAL DEFAULT +ABS _DYNAMIC
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+3: 0+ +0 TLS +GLOBAL DEFAULT +UND sG2
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+4: [0-9a-f]+ +0 OBJECT +GLOBAL DEFAULT +ABS _PROCEDURE_LINKAGE_TABLE_
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+5: 0+ +0 FUNC +GLOBAL DEFAULT +UND __tls_get_addr
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+6: [0-9a-f]+ +0 NOTYPE +GLOBAL DEFAULT +ABS __bss_start
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+7: 0+ +0 TLS +GLOBAL DEFAULT +UND sG6
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+8: 0+ +0 TLS +GLOBAL DEFAULT +UND sG1
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+9: [0-9a-f]+ +0 NOTYPE +GLOBAL DEFAULT +ABS _edata
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+10: [0-9a-f]+ +0 NOTYPE +GLOBAL DEFAULT +ABS _end
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Symbol table '.symtab' contains 68 entries:
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+Num: +Value +Size Type +Bind +Vis +Ndx Name
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+0: 0+ +0 NOTYPE +LOCAL +DEFAULT +UND *
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+1: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +1 *
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+2: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +2 *
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+3: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +3 *
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+4: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +4 *
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+5: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +5 *
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+6: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +6 *
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+7: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +7 *
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+8: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +8 *
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+9: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +9 *
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+[0-9]+: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +10 *
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+[0-9]+: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +11 *
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+[0-9]+: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +12 *
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+[0-9]+: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +13 *
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+[0-9]+: [0-9a-f]+ +0 SECTION LOCAL +DEFAULT +14 *
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+[0-9]+: 0+20 +0 TLS +LOCAL +DEFAULT +7 sl1
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+[0-9]+: 0+24 +0 TLS +LOCAL +DEFAULT +7 sl2
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+[0-9]+: 0+28 +0 TLS +LOCAL +DEFAULT +7 sl3
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+[0-9]+: 0+2c +0 TLS +LOCAL +DEFAULT +7 sl4
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+[0-9]+: 0+30 +0 TLS +LOCAL +DEFAULT +7 sl5
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+[0-9]+: 0+34 +0 TLS +LOCAL +DEFAULT +7 sl6
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+[0-9]+: 0+38 +0 TLS +LOCAL +DEFAULT +7 sl7
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+[0-9]+: 0+3c +0 TLS +LOCAL +DEFAULT +7 sl8
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+[0-9]+: 0+80 +0 TLS +LOCAL +DEFAULT +8 bl1
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+[0-9]+: 0+84 +0 TLS +LOCAL +DEFAULT +8 bl2
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+[0-9]+: 0+88 +0 TLS +LOCAL +DEFAULT +8 bl3
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+[0-9]+: 0+8c +0 TLS +LOCAL +DEFAULT +8 bl4
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+[0-9]+: 0+90 +0 TLS +LOCAL +DEFAULT +8 bl5
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+[0-9]+: 0+94 +0 TLS +LOCAL +DEFAULT +8 bl6
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+[0-9]+: 0+98 +0 TLS +LOCAL +DEFAULT +8 bl7
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+[0-9]+: 0+9c +0 TLS +LOCAL +DEFAULT +8 bl8
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+[0-9]+: 0+1c +0 TLS +GLOBAL DEFAULT +7 sg8
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+[0-9]+: 0+7c +0 TLS +GLOBAL DEFAULT +8 bg8
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+[0-9]+: 0+74 +0 TLS +GLOBAL DEFAULT +8 bg6
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+[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +UND sG5
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+[0-9]+: 0+68 +0 TLS +GLOBAL DEFAULT +8 bg3
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+[0-9]+: 0+202208 +0 OBJECT +GLOBAL DEFAULT +ABS _DYNAMIC
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+[0-9]+: 0+08 +0 TLS +GLOBAL DEFAULT +7 sg3
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+[0-9]+: 0+48 +0 TLS +GLOBAL HIDDEN +7 sh3
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+[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +UND sG2
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+[0-9]+: 0+0c +0 TLS +GLOBAL DEFAULT +7 sg4
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+[0-9]+: 0+10 +0 TLS +GLOBAL DEFAULT +7 sg5
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+[0-9]+: [0-9a-f]+ +0 OBJECT +GLOBAL DEFAULT +ABS _PROCEDURE_LINKAGE_TABLE_
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+[0-9]+: 0+70 +0 TLS +GLOBAL DEFAULT +8 bg5
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+[0-9]+: 0+ +0 FUNC +GLOBAL DEFAULT +UND __tls_get_addr
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+[0-9]+: 0+58 +0 TLS +GLOBAL HIDDEN +7 sh7
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+[0-9]+: 0+5c +0 TLS +GLOBAL HIDDEN +7 sh8
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+[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +7 sg1
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+[0-9]+: 0+102000 +0 FUNC +GLOBAL DEFAULT +6 _start
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+[0-9]+: 0+4c +0 TLS +GLOBAL HIDDEN +7 sh4
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+[0-9]+: 0+78 +0 TLS +GLOBAL DEFAULT +8 bg7
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+[0-9]+: 0+50 +0 TLS +GLOBAL HIDDEN +7 sh5
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+[0-9]+: [0-9a-f]+ +0 NOTYPE +GLOBAL DEFAULT +ABS __bss_start
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+[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +UND sG6
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+[0-9]+: 0+101008 +0 FUNC +GLOBAL DEFAULT +6 fn2
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+[0-9]+: 0+04 +0 TLS +GLOBAL DEFAULT +7 sg2
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+[0-9]+: 0+ +0 TLS +GLOBAL DEFAULT +UND sG1
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+[0-9]+: 0+40 +0 TLS +GLOBAL HIDDEN +7 sh1
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+[0-9]+: 0+14 +0 TLS +GLOBAL DEFAULT +7 sg6
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+[0-9]+: 0+18 +0 TLS +GLOBAL DEFAULT +7 sg7
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+[0-9]+: [0-9a-f]+ +0 NOTYPE +GLOBAL DEFAULT +ABS _edata
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+[0-9]+: 0+202308 +0 OBJECT +GLOBAL +HIDDEN +10 _GLOBAL_OFFSET_TABLE_
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+[0-9]+: [0-9a-f]+ +0 NOTYPE +GLOBAL DEFAULT +ABS _end
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+[0-9]+: 0+44 +0 TLS +GLOBAL HIDDEN +7 sh2
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+[0-9]+: 0+54 +0 TLS +GLOBAL HIDDEN +7 sh6
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+[0-9]+: 0+64 +0 TLS +GLOBAL DEFAULT +8 bg2
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+[0-9]+: 0+60 +0 TLS +GLOBAL DEFAULT +8 bg1
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