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| author | Jing Yu <jingyu@google.com> | 2015-03-30 14:06:12 -0700 |
|---|---|---|
| committer | Jing Yu <jingyu@google.com> | 2015-03-30 14:11:48 -0700 |
| commit | 6b0ad2ebf6024419c84f35552f4eb55aa0b23195 (patch) | |
| tree | 0fcd98625c2646f0577f449f46bb9a1b57fc5213 /gold/aarch64.cc | |
| parent | 5675acd9d4a62c4d402da7a436d810b29832d0e0 (diff) | |
| download | gdb-6b0ad2ebf6024419c84f35552f4eb55aa0b23195.zip gdb-6b0ad2ebf6024419c84f35552f4eb55aa0b23195.tar.gz gdb-6b0ad2ebf6024419c84f35552f4eb55aa0b23195.tar.bz2 | |
Support AARCH64_TLSLD_ADD_DTPREL_* relocations.
Also Change _TLS_MODULE_BASE_. Always let it point to the start
of TLS segment.
2015-03-28 Jing Yu <jingyu@google.com>
* aarch64-reloc.def: New TLSLD_ADD_DTPREL_HI12,
TLSLD_ADD_DTPREL_LO12_NC.
* aarch64.cc (Target_aarch64::define_tls_base_symbol): Always
let _TLS_MODULE_BASE_ point to the start of tls segment.
(Target_aarch64::optimize_tls_reloc): Add cases for
R_AARCH64_TLSLD_ADD_DTPREL_HI12 and
R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC.
(Target_aarch64::Scan::local): Likewise.
(Target_aarch64::Scan::global): Likewise.
(Target_aarch64::Relocate::relocate): Likewise.
(Target_aarch64::Relocate::relocate_tls): Likewise. And remove
subtracting tls segment size from symbol value for
TLSLD_*_DTPREL relocations.
Diffstat (limited to 'gold/aarch64.cc')
| -rw-r--r-- | gold/aarch64.cc | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/gold/aarch64.cc b/gold/aarch64.cc index 31176a4..4ae987f 100644 --- a/gold/aarch64.cc +++ b/gold/aarch64.cc @@ -4446,16 +4446,14 @@ Target_aarch64<size, big_endian>::define_tls_base_symbol( Output_segment* tls_segment = layout->tls_segment(); if (tls_segment != NULL) { - bool is_exec = parameters->options().output_is_executable(); + // _TLS_MODULE_BASE_ always points to the beginning of tls segment. symtab->define_in_output_segment("_TLS_MODULE_BASE_", NULL, Symbol_table::PREDEFINED, tls_segment, 0, 0, elfcpp::STT_TLS, elfcpp::STB_LOCAL, elfcpp::STV_HIDDEN, 0, - (is_exec - ? Symbol::SEGMENT_END - : Symbol::SEGMENT_START), + Symbol::SEGMENT_START, true); } this->tls_base_symbol_defined_ = true; @@ -4546,6 +4544,8 @@ Target_aarch64<size, big_endian>::optimize_tls_reloc(bool is_final, case elfcpp::R_AARCH64_TLSLD_ADD_LO12_NC: case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G1: case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_HI12: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: // These are Local-Dynamic, which refer to local symbols in the // dynamic TLS block. Since we know that we generating an // executable, we can switch to Local-Exec. @@ -4894,6 +4894,8 @@ Target_aarch64<size, big_endian>::Scan::local( case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G1: case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_HI12: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: break; case elfcpp::R_AARCH64_TLSDESC_ADR_PAGE21: @@ -5218,7 +5220,9 @@ Target_aarch64<size, big_endian>::Scan::global( break; case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G1: - case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: // Other local dynamic + case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_HI12: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: // Other local dynamic break; case elfcpp::R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: @@ -5784,6 +5788,8 @@ Target_aarch64<size, big_endian>::Relocate::relocate( case elfcpp::R_AARCH64_TLSLD_ADD_LO12_NC: case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G1: case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_HI12: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: case elfcpp::R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21: case elfcpp::R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC: case elfcpp::R_AARCH64_TLSLE_MOVW_TPREL_G2: @@ -5981,7 +5987,9 @@ Target_aarch64<size, big_endian>::Relocate::relocate_tls( break; case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G1: - case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: // Other local-dynamic + case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_HI12: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: // Other local-dynamic { AArch64_address value = psymval->value(object, 0); if (tlsopt == tls::TLSOPT_TO_LE) @@ -5992,9 +6000,6 @@ Target_aarch64<size, big_endian>::Relocate::relocate_tls( || issue_undefined_symbol_error(gsym)); return aarch64_reloc_funcs::STATUS_BAD_RELOC; } - // If building executable, _TLS_MODULE_BASE_ points to segment - // end. Thus we must subtract it from value. - value -= tls_segment->memsz(); } switch (r_type) { @@ -6004,6 +6009,8 @@ Target_aarch64<size, big_endian>::Relocate::relocate_tls( break; case elfcpp::R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_HI12: + case elfcpp::R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC: return aarch64_reloc_funcs::template rela_general<32>( view, value, addend, reloc_property); break; |