PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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#source: notoc2.s
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2020-05-11 07:54:14 +08:00
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#as: -a64 -mpower10
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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#ld: -shared -z norelro
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2020-05-11 07:54:14 +08:00
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#objdump: -d -Mpower10
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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#target: powerpc64*-*-*
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.*
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Disassembly of section \.text:
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.* <.*\.plt_call\.puts>:
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2021-04-06 17:33:35 +08:00
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.*: (04 10 00 01|01 00 10 04) pld r12,66200 # 10418 \[puts@plt\]
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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.*: (e5 80 02 98|98 02 80 e5)
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.*: (7d 89 03 a6|a6 03 89 7d) mtctr r12
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.*: (4e 80 04 20|20 04 80 4e) bctr
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#...
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2021-04-06 17:33:35 +08:00
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.*: (04 13 ff ff|ff ff 13 04) pld r12,-1 # 1bf
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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.*: (e5 80 ff ff|ff ff 80 e5)
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2021-04-06 17:33:35 +08:00
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.*: (04 10 00 00|00 00 10 04) pld r12,0 # 1c8
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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.*: (e5 80 00 00|00 00 80 e5)
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2021-04-06 17:33:35 +08:00
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.*: (06 13 ff ff|ff ff 13 06) pla r12,-1 # 1cf
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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.*: (39 80 ff ff|ff ff 80 39)
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2021-04-06 17:33:35 +08:00
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.*: (06 10 00 00|00 00 10 06) pla r12,0 # 1d8
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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.*: (39 80 00 00|00 00 80 39)
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2021-04-06 17:33:35 +08:00
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.*: (06 10 00 00|00 00 10 06) pla r3,88 # 238 <hello>
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PPC64_OPT_LOCALENTRY is incompatible with tail calls
The save of r2 in __glink_PLTresolve is the culprit. Remove it,
unless we know we need it for --plt-localentry. --plt-localentry
should not be used with power10 pc-relative code that makes tail
calls.
The patch also removes use of r2 as a scratch reg in the ELFv2
__glink_PLTresolve. Using r2 isn't a problem, this is just reducing
the number of scratch regs.
bfd/
* elf64-ppc.c (GLINK_PLTRESOLVE_SIZE): Depend on has_plt_localentry0.
(LD_R0_0R11, ADD_R11_R0_R11): Define.
(ppc64_elf_tls_setup): Disable params->plt_localentry0 when power10
code detected.
(ppc64_elf_size_stubs): Update __glink_PLTresolve eh_frame.
(ppc64_elf_build_stubs): Move r2 save to start of __glink_PLTresolve,
and only emit for has_plt_localentry0. Don't use r2 in the stub.
ld/
* testsuite/ld-powerpc/elfv2so.d,
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/tlsdesc.wf,
* testsuite/ld-powerpc/tlsdesc2.d,
* testsuite/ld-powerpc/tlsdesc2.wf,
* testsuite/ld-powerpc/tlsopt5.d,
* testsuite/ld-powerpc/tlsopt5.wf,
* testsuite/ld-powerpc/tlsopt6.d,
* testsuite/ld-powerpc/tlsopt6.wf: Update __glink_PLTresolve.
2020-09-26 13:40:09 +08:00
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.*: (38 60 00 58|58 00 60 38)
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PowerPC notoc linkage stubs
Use pcrel addressing instructions in linkage stubs.
bfd/
* elf64-ppc.c: Comment on powerxx _notoc stub variants.
(LI_R11_0, LIS_R11, ORI_R11_R11_0, SLDI_R11_R11_34): Define.
(PADDI_R12_PC, PLD_R12_PC, D34, HA34): Define.
(struct ppc_link_hash_table): Add powerxx_stubs.
(ppc64_elf_check_relocs): Set powerxx_stubs.
(build_powerxx_offset, size_powerxx_offset),
(num_relocs_for_powerxx_offset),
(emit_relocs_for_powerxx_offset): New functions.
(plt_stub_size): Size powerxx stubs.
(ppc_build_one_stub): Emit powerxx stubs.
(ppc_size_one_stub): Size powerxx stubs. Omit .eh_frame for
powerxx stubs.
ld/
* testsuite/ld-powerpc/notoc2.d,
* testsuite/ld-powerpc/notoc2.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
2018-08-09 21:23:00 +08:00
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.*: (4b ff ff 99|99 ff ff 4b) bl .* <.*\.plt_call\.puts>
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.*: (60 00 00 00|00 00 00 60) nop
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#pass
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