commit a7fd11862703e45d2774981a4888bc127d473b06
author Fangrui Song <maskray@google.com> Tue Nov 16 13:03:57 2021 -0800
committer Fangrui Song <maskray@google.com> Tue Nov 16 13:04:33 2021 -0800
tree 6caa5fcbd7a7b71a0b6ab895a2bf9a4a00193fa9
parent 830070c66d25e6749b7159009f1d87d85f02eaa3

readelf: Support SHT_RELR/DT_RELR for -r

The -r output for SHT_RELR looks like:

Relocation section '.relr.dyn' at offset 0x530 contains 4 entries:
  7 offsets
00000000000028c0
00000000000028c8
0000000000003ad0
0000000000003ad8
0000000000003ae0
0000000000003ae8
0000000000003af0

For --use-dynamic, the header looks like

    'RELR' relocation section at offset 0x530 contains 32 bytes:

include/
    * elf/common.h (DT_ENCODING): Bump to 38.
    * elf/external.h (Elf32_External_Relr): New.
    (Elf64_External_Relr): New.
binutils/
    * readelf.c (enum relocation_type): New.
    (slurp_relr_relocs): New.
    (dump_relocations): Change is_rela to rel_type.
    Dump RELR.
    (dynamic_relocations): Add DT_RELR.
    (process_relocs): Check SHT_RELR and DT_RELR.
    (process_dynamic_section): Store into dynamic_info for
    DT_RELR/DT_RELRENT/DT_RELRSZ.