2003-02-04 14:52:11 +00:00
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#source: tlstoc.s
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#as: -a64
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#ld: -shared -melf64ppc
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#readelf: -WSsrl
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#target: powerpc64*-*-*
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2007-09-30 01:33:15 +00:00
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There are [0-9]+ section headers, starting at offset 0x[0-9a-f]+:
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2003-02-04 14:52:11 +00:00
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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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2007-09-30 01:33:15 +00:00
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+\[[ 0-9]+\] +NULL +0+ 0+ 0+ 0+ +0 +0 +0
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+\[[ 0-9]+\] \.hash .*
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+\[[ 0-9]+\] \.dynsym .*
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+\[[ 0-9]+\] \.dynstr .*
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+\[[ 0-9]+\] \.rela\.dyn .*
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+\[[ 0-9]+\] \.rela\.plt .*
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+\[[ 0-9]+\] \.text .*
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+\[[ 0-9]+\] \.tdata +PROGBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.tbss +NOBITS .* 0+38 0+ WAT +0 +0 +8
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+\[[ 0-9]+\] \.dynamic .*
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2013-10-29 02:09:30 +00:00
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+\[[ 0-9]+\] \.opd .*
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2007-09-30 01:33:15 +00:00
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+\[[ 0-9]+\] \.got .*
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+\[[ 0-9]+\] \.plt .*
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+\[[ 0-9]+\] \.shstrtab .*
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+\[[ 0-9]+\] \.symtab .*
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+\[[ 0-9]+\] \.strtab .*
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2003-02-04 14:52:11 +00:00
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#...
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Elf file type is DYN \(Shared object file\)
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2004-05-11 17:08:38 +00:00
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Entry point 0x[0-9a-f]+
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2007-09-30 01:33:15 +00:00
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There are [0-9]+ program headers, starting at offset [0-9]+
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2003-02-04 14:52:11 +00:00
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Program Headers:
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+Type +Offset +VirtAddr +PhysAddr +FileSiz +MemSiz +Flg Align
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2005-08-15 15:39:48 +00:00
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+LOAD .* R E 0x10000
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+LOAD .* RW +0x10000
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+DYNAMIC .* RW +0x8
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+TLS .* 0x0+38 0x0+70 R +0x8
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2003-02-04 14:52:11 +00:00
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Section to Segment mapping:
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+Segment Sections\.\.\.
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2013-10-29 02:09:30 +00:00
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+0+ +\.hash \.dynsym \.dynstr \.rela\.dyn \.rela\.plt \.text *
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+01 +\.tdata \.dynamic \.opd \.got \.plt *
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+02 +\.dynamic *
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+03 +\.tdata \.tbss *
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2003-02-04 14:52:11 +00:00
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2013-10-29 02:09:30 +00:00
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Relocation section '\.rela\.dyn' at offset .* contains 13 entries:
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2003-02-04 14:52:11 +00:00
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+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
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2013-10-29 02:09:30 +00:00
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[0-9a-f ]+R_PPC64_RELATIVE +4dc
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[0-9a-f ]+R_PPC64_RELATIVE +18720
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2005-07-08 06:22:04 +00:00
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[0-9a-f ]+R_PPC64_TPREL16 +0+60 le0 \+ 0
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[0-9a-f ]+R_PPC64_TPREL16_HA +0+68 le1 \+ 0
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[0-9a-f ]+R_PPC64_TPREL16_LO +0+68 le1 \+ 0
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[0-9a-f ]+R_PPC64_DTPMOD64 +0+ gd \+ 0
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[0-9a-f ]+R_PPC64_DTPREL64 +0+ gd \+ 0
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[0-9a-f ]+R_PPC64_DTPMOD64 +0+ ld \+ 0
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[0-9a-f ]+R_PPC64_DTPMOD64 +0+38 gd0 \+ 0
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[0-9a-f ]+R_PPC64_DTPREL64 +0+38 gd0 \+ 0
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[0-9a-f ]+R_PPC64_DTPMOD64 +0+40 ld0 \+ 0
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[0-9a-f ]+R_PPC64_DTPREL64 +0+50 ld2 \+ 0
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[0-9a-f ]+R_PPC64_TPREL64 +0+58 ie0 \+ 0
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2003-02-04 14:52:11 +00:00
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2003-06-10 04:36:01 +00:00
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Relocation section '\.rela\.plt' at offset .* contains 1 entries:
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2003-02-04 14:52:11 +00:00
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+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
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2005-07-08 06:22:04 +00:00
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[0-9a-f ]+R_PPC64_JMP_SLOT +0+ __tls_get_addr \+ 0
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2003-02-04 14:52:11 +00:00
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2005-08-15 15:39:48 +00:00
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Symbol table '\.dynsym' contains [0-9]+ entries:
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2009-09-23 03:12:28 +00:00
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+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +LOCAL +DEFAULT +UND *
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.* SECTION +LOCAL +DEFAULT +6 *
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.* SECTION +LOCAL +DEFAULT +7 *
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +UND gd
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.* TLS +GLOBAL +DEFAULT +8 le0
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.* NOTYPE +GLOBAL +DEFAULT +UND __tls_get_addr
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.* TLS +GLOBAL +DEFAULT +8 ld0
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.* TLS +GLOBAL +DEFAULT +8 le1
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.* TLS +GLOBAL +DEFAULT +UND ld
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2013-10-29 02:09:30 +00:00
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.* FUNC +GLOBAL +DEFAULT +10 _start
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +8 ld2
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.* TLS +GLOBAL +DEFAULT +8 ld1
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +12 __bss_start
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Reorder more powerpc64 sections for -z relro
This moves .got too, which requires .sdata and .sbss to move with it,
because these sections share addressing via the toc pointer and with
small-model code must be within a 16-bit signed offset. .plt, .iplt
and .branch_lt must also be moved since they are addressed via a
32-bit offset from the toc pointer, and we might have a very large
.data section.
This change means we may have some bss style sections before the data
segment, necessitating another PT_LOAD header. Also, since _edata is
defined at the end of the data segment it's possible with an empty
.data to have _edata at the end of .plt which looks a little unusual
since .plt is a bss style section. That should only happen rarely in
real world binaries, but does occur in the ld testsuite.
ld/
* emulparams/elf64ppc.sh (BSS_PLT): Don't define.
(OTHER_READWRITE_SECTIONS): Move .branch_lt to..
(OTHER_RELRO_SECTIONS_2): ..here.
(DATA_GOT, SEPARATE_GOTPLT, DATA_SDATA, DATA_PLT,
PLT_BEFORE_GOT): Define.
* scripttempl/elf.sc: Handle DATA_SDATA and DATA_GOT/DATA_PLT/
PLT_BEFORE_GOT combination.
(DATA_GOT, SDATA_GOT): Don't define if either is already defined.
ld/testsuite/
* ld-powerpc/ambiguousv1.d,
* ld-powerpc/ambiguousv1b.d,
* ld-powerpc/ambiguousv2.d,
* ld-powerpc/ambiguousv2b.d,
* ld-powerpc/elfv2exe.d,
* ld-powerpc/elfv2so.d,
* ld-powerpc/tlsexe.r,
* ld-powerpc/tlsexetoc.r,
* ld-powerpc/tlsso.r,
* ld-powerpc/tlstocso.r: Update.
2015-01-20 06:49:15 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +12 _edata
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +12 _end
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +8 gd0
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.* TLS +GLOBAL +DEFAULT +8 ie0
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2003-02-04 14:52:11 +00:00
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2007-09-30 01:33:15 +00:00
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Symbol table '\.symtab' contains [0-9]+ entries:
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2009-09-23 03:12:28 +00:00
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+Num: +Value +Size +Type +Bind +Vis +Ndx +Name
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +LOCAL +DEFAULT +UND *
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.* SECTION +LOCAL +DEFAULT +1 *
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.* SECTION +LOCAL +DEFAULT +2 *
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.* SECTION +LOCAL +DEFAULT +3 *
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.* SECTION +LOCAL +DEFAULT +4 *
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.* SECTION +LOCAL +DEFAULT +5 *
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.* SECTION +LOCAL +DEFAULT +6 *
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.* SECTION +LOCAL +DEFAULT +7 *
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.* SECTION +LOCAL +DEFAULT +8 *
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.* SECTION +LOCAL +DEFAULT +9 *
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.* SECTION +LOCAL +DEFAULT +10 *
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.* SECTION +LOCAL +DEFAULT +11 *
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.* SECTION +LOCAL +DEFAULT +12 *
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2012-06-06 10:50:18 +00:00
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.* FILE +LOCAL +DEFAULT +ABS .*
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2005-08-15 15:39:48 +00:00
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.* TLS +LOCAL +DEFAULT +7 gd4
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.* TLS +LOCAL +DEFAULT +7 ld4
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.* TLS +LOCAL +DEFAULT +7 ld5
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.* TLS +LOCAL +DEFAULT +7 ld6
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.* TLS +LOCAL +DEFAULT +7 ie4
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.* TLS +LOCAL +DEFAULT +7 le4
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.* TLS +LOCAL +DEFAULT +7 le5
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +LOCAL +DEFAULT +11 \.Lie0
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2015-02-16 16:35:17 +00:00
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.* FILE +LOCAL +DEFAULT +ABS
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2012-05-17 02:43:36 +00:00
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.* OBJECT +LOCAL +DEFAULT +9 _DYNAMIC
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2013-04-22 03:11:40 +00:00
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.* NOTYPE +LOCAL +DEFAULT +6 .*\.plt_call\.__tls_get_addr
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2009-10-02 15:00:30 +00:00
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.* NOTYPE +LOCAL +DEFAULT +6 __glink_PLTresolve
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Properly place the NULL STT_FILE symbol revistited
I was having a little closer look at what is going on here and noticed
that HJ unconditionally emits a NULL STT_FILE symbol before emitting
forced local symbols. That means we really don't need a second pass
over forced local symbols. The only reason for two passes is when
some forced local symbol can be emitted before the NULL STT_FILE. So
I set about removing the second pass, updating the testsuite all over
again. It's also unnecessary to emit the NULL STT_FILE when no
previous file symbol has been emitted.
bfd/
PR ld/17975
* elflink.c (struct elf_outext_info): Remove need_second_pass
and second_pass.
(elf_link_output_extsym): Delete code handling second forced
local pass. Move code emitting NULL STT_FILE symbol later, so
that it can be omitted if forced local is stripped. Don't
emit the NULL STT_FILE if no file symbols have been output.
(bfd_elf_final_link): Remove second forced local pass.
* elf32-ppc.c (add_stub_sym): Set linker_def on linker syms.
(ppc_elf_size_dynamic_sections): Likewise.
* elf64-ppc.c (ppc_build_one_stub): Likewise.
(build_global_entry_stubs): Likewise.
(ppc64_elf_build_stubs): Likewise.
ld/testsuite/
PR ld/17975
* ld-aarch64/gc-tls-relocs.d, * ld-alpha/tlspic.rd,
* ld-cris/libdso-2.d, * ld-i386/tlsdesc-nacl.rd, * ld-i386/tlsdesc.rd,
* ld-i386/tlsnopic-nacl.rd, * ld-i386/tlsnopic.rd,
* ld-i386/tlspic-nacl.rd, * ld-i386/tlspic.rd, * ld-ia64/tlspic.rd,
* ld-powerpc/tlsexe.r, * ld-powerpc/tlsexetoc.r,
* ld-powerpc/tlsso.r, * ld-powerpc/tlstocso.r,
* ld-s390/tlspic.rd, * ld-s390/tlspic_64.rd,
* ld-sparc/tlssunnopic32.rd, * ld-sparc/tlssunnopic64.rd,
* ld-sparc/tlssunpic32.rd, * ld-sparc/tlssunpic64.rd,
* ld-tic6x/shlib-1.rd, * ld-tic6x/shlib-1b.rd, * ld-tic6x/shlib-1r.rd,
* ld-tic6x/shlib-1rb.rd, * ld-tic6x/shlib-noindex.rd,
* ld-x86-64/tlsdesc-nacl.rd, * ld-x86-64/tlsdesc.rd,
* ld-x86-64/tlspic-nacl.rd, * ld-x86-64/tlspic.rd: Update.
2015-02-16 22:44:59 +00:00
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.* NOTYPE +LOCAL +DEFAULT +UND \.__tls_get_addr
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +UND gd
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.* TLS +GLOBAL +DEFAULT +8 le0
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.* NOTYPE +GLOBAL +DEFAULT +UND __tls_get_addr
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.* TLS +GLOBAL +DEFAULT +8 ld0
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.* TLS +GLOBAL +DEFAULT +8 le1
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.* TLS +GLOBAL +DEFAULT +UND ld
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2013-10-29 02:09:30 +00:00
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.* FUNC +GLOBAL +DEFAULT +10 _start
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +8 ld2
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.* TLS +GLOBAL +DEFAULT +8 ld1
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +12 __bss_start
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Reorder more powerpc64 sections for -z relro
This moves .got too, which requires .sdata and .sbss to move with it,
because these sections share addressing via the toc pointer and with
small-model code must be within a 16-bit signed offset. .plt, .iplt
and .branch_lt must also be moved since they are addressed via a
32-bit offset from the toc pointer, and we might have a very large
.data section.
This change means we may have some bss style sections before the data
segment, necessitating another PT_LOAD header. Also, since _edata is
defined at the end of the data segment it's possible with an empty
.data to have _edata at the end of .plt which looks a little unusual
since .plt is a bss style section. That should only happen rarely in
real world binaries, but does occur in the ld testsuite.
ld/
* emulparams/elf64ppc.sh (BSS_PLT): Don't define.
(OTHER_READWRITE_SECTIONS): Move .branch_lt to..
(OTHER_RELRO_SECTIONS_2): ..here.
(DATA_GOT, SEPARATE_GOTPLT, DATA_SDATA, DATA_PLT,
PLT_BEFORE_GOT): Define.
* scripttempl/elf.sc: Handle DATA_SDATA and DATA_GOT/DATA_PLT/
PLT_BEFORE_GOT combination.
(DATA_GOT, SDATA_GOT): Don't define if either is already defined.
ld/testsuite/
* ld-powerpc/ambiguousv1.d,
* ld-powerpc/ambiguousv1b.d,
* ld-powerpc/ambiguousv2.d,
* ld-powerpc/ambiguousv2b.d,
* ld-powerpc/elfv2exe.d,
* ld-powerpc/elfv2so.d,
* ld-powerpc/tlsexe.r,
* ld-powerpc/tlsexetoc.r,
* ld-powerpc/tlsso.r,
* ld-powerpc/tlstocso.r: Update.
2015-01-20 06:49:15 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +12 _edata
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +12 _end
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +8 gd0
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.* TLS +GLOBAL +DEFAULT +8 ie0
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