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| author | H.J. Lu <hjl.tools@gmail.com> | 2017-07-28 13:39:42 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2017-07-28 13:40:01 -0700 |
| commit | 49ba15a23a9d3d8a109ce2fd5053822eee7f1fdf (patch) | |
| tree | 5441efd64dce3456b6fb9e6dbcb941517190a03c | |
| parent | 894dde0ba7eb0789fbc1009c9541ac6d68389968 (diff) | |
| download | gdb-49ba15a23a9d3d8a109ce2fd5053822eee7f1fdf.zip gdb-49ba15a23a9d3d8a109ce2fd5053822eee7f1fdf.tar.gz gdb-49ba15a23a9d3d8a109ce2fd5053822eee7f1fdf.tar.bz2 | |
gold: Add put_ch_reserved to 64-bit Chdr_write
The 64-bit ELF compression header has a reserved field. It should be
cleared to avoid random bits in it.
elfcpp/
PR gold/21857
* elfcpp.h (Chdr_write): Add put_ch_reserved.
(Chdr_write<64, true>::put_ch_reserved): New.
(Chdr_write<64, false>::put_ch_reserved): Likewise.
gold/
PR gold/21857
* compressed_output.cc (Output_compressed_section::set_final_data_size):
Call put_ch_reserved to clear the reserved field for 64-bit ELF.
| -rw-r--r-- | elfcpp/ChangeLog | 7 | ||||
| -rw-r--r-- | elfcpp/elfcpp.h | 17 | ||||
| -rw-r--r-- | gold/ChangeLog | 6 | ||||
| -rw-r--r-- | gold/compressed_output.cc | 4 |
4 files changed, 34 insertions, 0 deletions
diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog index fc864bf..f669248 100644 --- a/elfcpp/ChangeLog +++ b/elfcpp/ChangeLog @@ -1,3 +1,10 @@ +2017-07-28 H.J. Lu <hongjiu.lu@intel.com> + + PR gold/21857 + * elfcpp.h (Chdr_write): Add put_ch_reserved. + (Chdr_write<64, true>::put_ch_reserved): New. + (Chdr_write<64, false>::put_ch_reserved): Likewise. + 2017-07-03 Alan Modra <amodra@gmail.com> * dwarf.h (DW_FIRST_IDX, DW_IDX, DW_IDX_DUP, DW_END_IDX): Define, diff --git a/elfcpp/elfcpp.h b/elfcpp/elfcpp.h index a57f547..cccec4c 100644 --- a/elfcpp/elfcpp.h +++ b/elfcpp/elfcpp.h @@ -1351,10 +1351,27 @@ class Chdr_write put_ch_addralign(typename Elf_types<size>::Elf_WXword v) { this->p_->ch_addralign = Convert<size, big_endian>::convert_host(v); } + void + put_ch_reserved(Elf_Word); + private: internal::Chdr_data<size>* p_; }; +template<> +inline void +elfcpp::Chdr_write<64, true>::put_ch_reserved(Elf_Word v) +{ + this->p_->ch_reserved = v; +} + +template<> +inline void +elfcpp::Chdr_write<64, false>::put_ch_reserved(Elf_Word v) +{ + this->p_->ch_reserved = v; +} + // Accessor class for an ELF segment header. template<int size, bool big_endian> diff --git a/gold/ChangeLog b/gold/ChangeLog index 502af85..fdac931 100644 --- a/gold/ChangeLog +++ b/gold/ChangeLog @@ -1,3 +1,9 @@ +2017-07-28 H.J. Lu <hongjiu.lu@intel.com> + + PR gold/21857 + * compressed_output.cc (Output_compressed_section::set_final_data_size): + Call put_ch_reserved to clear the reserved field for 64-bit ELF. + 2017-07-26 H.J. Lu <hongjiu.lu@intel.com> * mips.cc (Mips_relocate_functions): Add "llu" suffix to diff --git a/gold/compressed_output.cc b/gold/compressed_output.cc index 4374ba1..45077f7 100644 --- a/gold/compressed_output.cc +++ b/gold/compressed_output.cc @@ -286,6 +286,8 @@ Output_compressed_section::set_final_data_size() chdr.put_ch_type(elfcpp::ELFCOMPRESS_ZLIB); chdr.put_ch_size(uncompressed_size); chdr.put_ch_addralign(addralign); + // Clear the reserved field. + chdr.put_ch_reserved(0); } else { @@ -293,6 +295,8 @@ Output_compressed_section::set_final_data_size() chdr.put_ch_type(elfcpp::ELFCOMPRESS_ZLIB); chdr.put_ch_size(uncompressed_size); chdr.put_ch_addralign(addralign); + // Clear the reserved field. + chdr.put_ch_reserved(0); } } else |