2003-02-04 14:52:11 +00:00
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#source: tlslib.s
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#source: tlstoc.s
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#as: -a64
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2013-10-29 02:09:30 +00:00
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#ld:
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2003-02-04 14:52:11 +00:00
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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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+\[[ 0-9]+\] \.interp +.*
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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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2011-10-10 09:05:41 +00:00
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+\[[ 0-9]+\] \.text +PROGBITS .* 0+e8 0+ +AX +0 +0 +32
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2007-09-30 01:33:15 +00:00
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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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include/elf/
* ppc.h (DT_PPC_TLSOPT): Define.
* ppc64.h (DT_PPC64_TLSOPT): Define.
bfd/
* elf32-ppc.c (TLS_GET_ADDR_GLINK_SIZE): Define.
(ADD_3_12_2, BEQLR, CMPWI_11_0, LWZ_11_3, LWZ_12_3): Define.
(MR_0_3, MR_3_0): Define.
(struct ppc_elf_link_hash_table): Add no_tls_get_addr_opt.
(ppc_elf_select_plt_layout): Save emit_stub_syms param earlier.
(ppc_elf_tls_setup): Add no_tls_get_addr_opt param and save to hash
table. Check for presense of __tls_get_addr_opt
(allocate_dynrelocs): Increase glink entry size for __tls_get_addr.
(ppc_elf_size_dynamic_sections): Add DT_PPC_TLS_OPT tag.
(write_glink_stub): Add param p.
(ppc_elf_relocate_section): Adjust write_glink_stub call.
(ppc_elf_finish_dynamic_symbol): Emit special glink call stub for
__tls_get_addr.
* elf32-ppc.h (ppc_elf_tls_setup): Update prototype.
* elf64-ppc.c (struct ppc_link_hash_table): Add no_tls_get_addr_opt.
(ppc64_elf_tls_setup): Add no_tls_get_addr_opt param and save to hash
table. Check for presense of __tls_get_addr_opt.
(ppc64_elf_size_dynamic_sections): Add DT_PPC64_TLS_OPT tag.
(LD_R11_0R3, LD_R12_0R3, MR_R0_R3, CMPDI_R11_0, ADD_R3_R12_R13,
BEQLR, MR_R3_R0, MFLR_R11, STD_R11_0R1, BCTRL, LD_R11_0R1,
LD_R2_0R1, MTLR_R11): Define.
(build_tls_get_addr_stub): New function.
(ppc_build_one_stub): Call it.
(ppc_size_one_stub): Add extra size for __tls_get_addr stub.
(ppc64_elf_relocate_section): Don't change nop to ld 2,40(1) for
__tls_get_addr plt call.
* elf64-ppc.h (ppc64_elf_tls_setup): Update prototype.
binutils/
* readelf.c (get_ppc_dynamic_type): Add TLSOPT.
(get_ppc64_dynamic_type): Likewise.
ld/
* emultempl/ppc32elf.em (no_tls_get_addr_opt): New var.
(ppc_before_allocation): Pass to ppc_elf_tls_setup.
(OPTION_NO_TLS_GET_ADDR_OPT): Define. Redefine other options in
terms of previous option.
(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add
--no-tls-get-addr-optimize.
(PARSE_AND_LIST_ARGS_CASES): Handle it.
* emultempl/ppc64elf.em (no_tls_get_addr_opt): New var.
(ppc_before_allocation): Pass to ppc64_elf_tls_setup.
(OPTION_NO_TLS_GET_ADDR_OPT): Define.
(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add
--no-tls-get-addr-optimize.
(PARSE_AND_LIST_ARGS_CASES): Handle it.
ld/testsuite/
* ld-powerpc/tlslib.s: Delete dot-symbol entry syms. Add
__tls_get_addr_opt.
* ld-powerpc/tlslib32.s: Add __tls_get_addr_opt.
* ld-powerpc/oldtlslib.s: New file, old-abi version of tlslib.s.
* ld-powerpc/powerpc.exp: Build old-abi library and use it in
two new link tests.
* ld-powerpc/tlsexe.d: Update for new __tls_get_addr stub.
* ld-powerpc/tlsexe.g, * ld-powerpc/tlsexe.r, *ld-powerpc/tlsexe32.d,
* ld-powerpc/tlsexe32.g, * ld-powerpc/tlsexe32.r,
* ld-powerpc/tlsexetoc.d, * ld-powerpc/tlsexetoc.g,
* ld-powerpc/tlsexetoc.r: Likewise.
2009-09-21 11:51:02 +00:00
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+\[[ 0-9]+\] \.dynamic +DYNAMIC .* 0+160 10 +WA +4 +0 +8
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2013-10-29 02:09:30 +00:00
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+\[[ 0-9]+\] \.opd .*
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2015-04-21 09:48:24 +00:00
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+\[[ 0-9]+\] \.got +PROGBITS .* 0+58 08 +WA +0 +0 +256
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2007-09-30 01:33:15 +00:00
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+\[[ 0-9]+\] \.plt +.*
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+\[[ 0-9]+\] \.symtab +.*
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+\[[ 0-9]+\] \.strtab +.*
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2016-08-19 08:16:30 +00:00
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+\[[ 0-9]+\] \.shstrtab +.*
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2003-02-04 14:52:11 +00:00
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#...
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Elf file type is EXEC \(Executable file\)
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2005-03-05 11:56:48 +00:00
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Entry point .*
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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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+PHDR +0x0+40 0x0+10000040 0x0+10000040 0x0+150 0x0+150 R E 0x8
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+INTERP +0x0+190 0x0+10000190 0x0+10000190 0x0+11 0x0+11 R +0x1
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+\[Requesting program interpreter: .*\]
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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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2003-02-09 04:37:04 +00:00
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+0+ +
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2013-10-29 02:09:30 +00:00
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+01 +\.interp *
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+02 +\.interp \.hash \.dynsym \.dynstr \.rela\.dyn \.rela\.plt \.text *
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+03 +\.tdata \.dynamic \.opd \.got \.plt *
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+04 +\.dynamic *
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+05 +\.tdata \.tbss *
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2003-02-04 14:52:11 +00:00
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2006-05-05 13:08:49 +00:00
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Relocation section '\.rela\.dyn' at offset .* contains 3 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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2006-05-05 13:08:49 +00:00
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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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2005-08-15 15:39:48 +00:00
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[0-9a-f ]+R_PPC64_DTPMOD64 +0+ ld \+ 0
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2003-02-04 14:52:11 +00:00
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2003-02-09 04:37:04 +00:00
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Relocation section '\.rela\.plt' at offset .* contains 1 entries:
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+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
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include/elf/
* ppc.h (DT_PPC_TLSOPT): Define.
* ppc64.h (DT_PPC64_TLSOPT): Define.
bfd/
* elf32-ppc.c (TLS_GET_ADDR_GLINK_SIZE): Define.
(ADD_3_12_2, BEQLR, CMPWI_11_0, LWZ_11_3, LWZ_12_3): Define.
(MR_0_3, MR_3_0): Define.
(struct ppc_elf_link_hash_table): Add no_tls_get_addr_opt.
(ppc_elf_select_plt_layout): Save emit_stub_syms param earlier.
(ppc_elf_tls_setup): Add no_tls_get_addr_opt param and save to hash
table. Check for presense of __tls_get_addr_opt
(allocate_dynrelocs): Increase glink entry size for __tls_get_addr.
(ppc_elf_size_dynamic_sections): Add DT_PPC_TLS_OPT tag.
(write_glink_stub): Add param p.
(ppc_elf_relocate_section): Adjust write_glink_stub call.
(ppc_elf_finish_dynamic_symbol): Emit special glink call stub for
__tls_get_addr.
* elf32-ppc.h (ppc_elf_tls_setup): Update prototype.
* elf64-ppc.c (struct ppc_link_hash_table): Add no_tls_get_addr_opt.
(ppc64_elf_tls_setup): Add no_tls_get_addr_opt param and save to hash
table. Check for presense of __tls_get_addr_opt.
(ppc64_elf_size_dynamic_sections): Add DT_PPC64_TLS_OPT tag.
(LD_R11_0R3, LD_R12_0R3, MR_R0_R3, CMPDI_R11_0, ADD_R3_R12_R13,
BEQLR, MR_R3_R0, MFLR_R11, STD_R11_0R1, BCTRL, LD_R11_0R1,
LD_R2_0R1, MTLR_R11): Define.
(build_tls_get_addr_stub): New function.
(ppc_build_one_stub): Call it.
(ppc_size_one_stub): Add extra size for __tls_get_addr stub.
(ppc64_elf_relocate_section): Don't change nop to ld 2,40(1) for
__tls_get_addr plt call.
* elf64-ppc.h (ppc64_elf_tls_setup): Update prototype.
binutils/
* readelf.c (get_ppc_dynamic_type): Add TLSOPT.
(get_ppc64_dynamic_type): Likewise.
ld/
* emultempl/ppc32elf.em (no_tls_get_addr_opt): New var.
(ppc_before_allocation): Pass to ppc_elf_tls_setup.
(OPTION_NO_TLS_GET_ADDR_OPT): Define. Redefine other options in
terms of previous option.
(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add
--no-tls-get-addr-optimize.
(PARSE_AND_LIST_ARGS_CASES): Handle it.
* emultempl/ppc64elf.em (no_tls_get_addr_opt): New var.
(ppc_before_allocation): Pass to ppc64_elf_tls_setup.
(OPTION_NO_TLS_GET_ADDR_OPT): Define.
(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add
--no-tls-get-addr-optimize.
(PARSE_AND_LIST_ARGS_CASES): Handle it.
ld/testsuite/
* ld-powerpc/tlslib.s: Delete dot-symbol entry syms. Add
__tls_get_addr_opt.
* ld-powerpc/tlslib32.s: Add __tls_get_addr_opt.
* ld-powerpc/oldtlslib.s: New file, old-abi version of tlslib.s.
* ld-powerpc/powerpc.exp: Build old-abi library and use it in
two new link tests.
* ld-powerpc/tlsexe.d: Update for new __tls_get_addr stub.
* ld-powerpc/tlsexe.g, * ld-powerpc/tlsexe.r, *ld-powerpc/tlsexe32.d,
* ld-powerpc/tlsexe32.g, * ld-powerpc/tlsexe32.r,
* ld-powerpc/tlsexetoc.d, * ld-powerpc/tlsexetoc.g,
* ld-powerpc/tlsexetoc.r: Likewise.
2009-09-21 11:51:02 +00:00
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[0-9a-f ]+R_PPC64_JMP_SLOT +0+ __tls_get_addr_opt \+ 0
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2003-02-09 04:37:04 +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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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +UND gd
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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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.* NOTYPE +GLOBAL +DEFAULT +13 __bss_start
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2009-09-23 03:12:28 +00:00
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.* FUNC +GLOBAL +DEFAULT +UND __tls_get_addr_opt
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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 +13 _edata
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +13 _end
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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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.* SECTION +LOCAL +DEFAULT +13 *
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2012-06-06 10:50:18 +00:00
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.* FILE +LOCAL +DEFAULT +ABS .*
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2007-02-13 01:53:03 +00:00
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.* TLS +LOCAL +DEFAULT +8 gd4
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.* TLS +LOCAL +DEFAULT +8 ld4
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.* TLS +LOCAL +DEFAULT +8 ld5
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.* TLS +LOCAL +DEFAULT +8 ld6
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.* TLS +LOCAL +DEFAULT +8 ie4
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.* TLS +LOCAL +DEFAULT +8 le4
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.* TLS +LOCAL +DEFAULT +8 le5
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +LOCAL +DEFAULT +12 \.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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2009-09-24 15:56:52 +00:00
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.* OBJECT +LOCAL +DEFAULT +10 _DYNAMIC
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Strip undefined symbols from .symtab
bfd/
PR ld/4317
* elflink.c (elf_link_input_bfd): Drop undefined local syms.
(elf_link_output_extsym): Drop local and global undefined syms.
Tidy. Expand comment.
ld/testsuite/
PR ld/4317
* ld-aarch64/gc-tls-relocs.d, * ld-cris/locref2.d,
* ld-elf/ehdr_start-weak.d, * ld-elf/group1.d,
* ld-i386/compressed1.d, * ld-ia64/error1.d, * ld-ia64/error2.d,
* ld-ia64/error3.d, * ld-mips-elf/pic-and-nonpic-1.nd,
* ld-mmix/undef-3.d, * ld-powerpc/tlsexe.r, * ld-powerpc/tlsexetoc.r,
* ld-powerpc/tlsso.r, * ld-powerpc/tlstocso.r,
* ld-x86-64/compressed1.d, * ld-x86-64/pie1.d: Update.
2015-02-18 06:32:39 +00:00
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.* NOTYPE +LOCAL +DEFAULT +7 __glink_PLTresolve
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.* NOTYPE +LOCAL +DEFAULT +7 .*\.plt_call\.__tls_get_addr(|_opt)
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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 +9 le0
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.* TLS +GLOBAL +DEFAULT +9 ld0
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.* TLS +GLOBAL +DEFAULT +9 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 +11 _start
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +9 ld2
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.* TLS +GLOBAL +DEFAULT +9 ld1
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +13 __bss_start
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2009-09-23 03:12:28 +00:00
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.* FUNC +GLOBAL +DEFAULT +UND __tls_get_addr_opt
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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 +13 _edata
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2013-10-29 02:09:30 +00:00
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.* NOTYPE +GLOBAL +DEFAULT +13 _end
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2009-09-23 03:12:28 +00:00
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.* TLS +GLOBAL +DEFAULT +9 gd0
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.* TLS +GLOBAL +DEFAULT +9 ie0
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