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| author | Alan Modra <amodra@gmail.com> | 2018-07-06 01:08:16 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2018-07-06 15:18:51 +0930 |
| commit | 724436fccb68156ff53b7b03cb7f41547a65c30c (patch) | |
| tree | 2d3e5e03ccebc48c7e4c613c26a340cd6efcadd4 /elfcpp | |
| parent | 6821842f15efaec045d9e38f115af01ddffdaede (diff) | |
| download | gdb-724436fccb68156ff53b7b03cb7f41547a65c30c.zip gdb-724436fccb68156ff53b7b03cb7f41547a65c30c.tar.gz gdb-724436fccb68156ff53b7b03cb7f41547a65c30c.tar.bz2 | |
[GOLD] PowerPC .gnu.attributes support
elfcpp/
* powerpc.h (Tag_GNU_Power_ABI_FP): Define.
(Tag_GNU_Power_ABI_Vector, Tag_GNU_Power_ABI_Struct_Return): Define.
gold/
* powerpc.cc: Include attributes.h.
(Powerpc_relobj::attributes_section_data_): New variable, with
accessor and associated constructor and destructor support.
(Powerpc_dynobj::attributes_section_data_): Likewise.
(Powerpc_relobj::do_read_symbols): Stash SHT_GNU_ATTRIBUTES section
contents in attributes_section_data_.
(Powerpc_dynobj::do_read_symbols): Likewise.
(Target_powerpc): Add attributes_section_data_, last_fp_, last_ld_,
last_vec_, and last_struct_ vars.
(Target_powerpc::merge_object_attributes): New function.
(Target_powerpc::do_finalize_sections): Iterate over input objects
merging attributes. Create output attributes section.
Diffstat (limited to 'elfcpp')
| -rw-r--r-- | elfcpp/ChangeLog | 5 | ||||
| -rw-r--r-- | elfcpp/powerpc.h | 26 |
2 files changed, 31 insertions, 0 deletions
diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog index d031d1b..fa33bf1 100644 --- a/elfcpp/ChangeLog +++ b/elfcpp/ChangeLog @@ -1,3 +1,8 @@ +2018-07-06 Alan Modra <amodra@gmail.com> + + * powerpc.h (Tag_GNU_Power_ABI_FP): Define. + (Tag_GNU_Power_ABI_Vector, Tag_GNU_Power_ABI_Struct_Return): Define. + 2018-06-24 Nick Clifton <nickc@redhat.com> 2.31 branch created. diff --git a/elfcpp/powerpc.h b/elfcpp/powerpc.h index 71de459..5996691 100644 --- a/elfcpp/powerpc.h +++ b/elfcpp/powerpc.h @@ -230,6 +230,32 @@ enum EF_PPC64_ABI = 3 }; +// Object attribute tags. 0-3 are generic. +enum +{ + // FP ABI, low 2 bits: + // 1 for double precision hard-float, + // 2 for soft-float, + // 3 for single precision hard-float. + // 0 for not tagged or not using any ABIs affected by the differences. + // Next 2 bits: + // 1 for ibm long double + // 2 for 64-bit long double + // 3 for IEEE long double. + // 0 for not tagged or not using any ABIs affected by the differences. + Tag_GNU_Power_ABI_FP = 4, + + // Value 1 for general purpose registers only, 2 for AltiVec + // registers, 3 for SPE registers; 0 for not tagged or not using any + // ABIs affected by the differences. + Tag_GNU_Power_ABI_Vector = 8, + + // Value 1 for ABIs using r3/r4 for returning structures <= 8 bytes, + // 2 for ABIs using memory; 0 for not tagged or not using any ABIs + // affected by the differences. + Tag_GNU_Power_ABI_Struct_Return = 12 +}; + // DT_PPC_OPT bits enum { |