This adds some annotation to Power10 pcrel instructions, displaying
the target address (ie. pc + D34 field) plus a symbol if there is one
at exactly that target address. pld from the .got or .plt will also
look up the entry and display it, symbolically if there is a dynamic
relocation on the entry.
include/
* dis-asm.h (struct disassemble_info): Add dynrelbuf and dynrelcount.
binutils/
* objdump.c (struct objdump_disasm_info): Delete dynrelbuf and
dynrelcount.
(find_symbol_for_address): Adjust for dynrelbuf and dynrelcount move.
(disassemble_section, disassemble_data): Likewise.
opcodes/
* ppc-dis.c (struct dis_private): Add "special".
(POWERPC_DIALECT): Delete. Replace uses with..
(private_data): ..this. New inline function.
(disassemble_init_powerpc): Init "special" names.
(skip_optional_operands): Add is_pcrel arg, set when detecting R
field of prefix instructions.
(bsearch_reloc, print_got_plt): New functions.
(print_insn_powerpc): For pcrel instructions, print target address
and symbol if known, and decode plt and got loads too.
gas/
* testsuite/gas/ppc/prefix-pcrel.d: Update expected output.
* testsuite/gas/ppc/prefix-reloc.d: Likewise.
* gas/testsuite/gas/ppc/vsx_32byte.d: Likewise.
ld/
* testsuite/ld-powerpc/inlinepcrel-1.d: Update expected output.
* testsuite/ld-powerpc/inlinepcrel-2.d: Likewise.
* testsuite/ld-powerpc/notoc2.d: Likewise.
* testsuite/ld-powerpc/notoc3.d: Likewise.
* testsuite/ld-powerpc/pcrelopt.d: Likewise.
* testsuite/ld-powerpc/startstop.d: Likewise.
* testsuite/ld-powerpc/tlsget.d: Likewise.
* testsuite/ld-powerpc/tlsget2.d: Likewise.
* testsuite/ld-powerpc/tlsld.d: Likewise.
* testsuite/ld-powerpc/weak1.d: Likewise.
* testsuite/ld-powerpc/weak1so.d: Likewise.
The loads and stores handled in the second instruction of a sequence
marked by R_PPC64_PCREL_OPT may be a prefix instruction. For example:
pld ra,symbol@got@pcrel
0:
pld rt,off(ra)
.reloc 0b-8,R_PPC64_PCREL_OPT,(.-8)-(0b-8)
can be optimised to
pld rt,symbol+off@pcrel
pnop
* elf64-ppc.c (xlate_pcrel_opt): Handle prefix loads and stores
in second instruction.
(ppc64_elf_relocate_section): Likewise.
bfd/
* elf64-ppc.c (ppc64_elf_check_relocs): Set has_gotrel for
R_PPC64_GOT_PCREL34.
(xlate_pcrel_opt): New function.
(ppc64_elf_edit_toc): Handle R_PPC64_GOT_PCREL34.
(ppc64_elf_relocate_section): Edit GOT indirect to GOT relative
for R_PPC64_GOT_PCREL34. Implement R_PPC64_PCREL_OPT optimisation.
ld/
* testsuite/ld-powerpc/pcrelopt.s,
* testsuite/ld-powerpc/pcrelopt.d,
* testsuite/ld-powerpc/pcrelopt.sec: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
