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kldxref: Implement aarch64 R_AARCH64_AB64 relocation

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Doing nothing seems to be sufficient but is strange, inconsistent with
other architectures, and not necessary when it's easy to support
properly.
This commit is contained in:
Jessica Clarke 2023-12-14 20:17:20 +00:00
parent ae7925cafe
commit aaba1490ec
1 changed files with 5 additions and 2 deletions
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7
usr.sbin/kldxref/ef_aarch64.c
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@ -43,8 +43,8 @@ ef_aarch64_reloc(struct elf_file *ef, const void *reldata, Elf_Type reltype,
GElf_Addr relbase, GElf_Addr dataoff, size_t len, void *dest)
{
char *where;
Elf64_Addr addend;
GElf_Size rtype;
GElf_Addr addr, addend;
GElf_Size rtype, symidx;
const GElf_Rela *rela;
if (reltype != ELF_T_RELA)
@ -54,6 +54,7 @@ ef_aarch64_reloc(struct elf_file *ef, const void *reldata, Elf_Type reltype,
where = (char *)dest - dataoff + rela->r_offset;
addend = rela->r_addend;
rtype = GELF_R_TYPE(rela->r_info);
symidx = GELF_R_SYM(rela->r_info);
if (where < (char *)dest || where >= (char *)dest + len)
return (0);
@ -63,6 +64,8 @@ ef_aarch64_reloc(struct elf_file *ef, const void *reldata, Elf_Type reltype,
le64enc(where, relbase + addend);
break;
case R_AARCH64_ABS64:
addr = EF_SYMADDR(ef, symidx) + addend;
le64enc(where, addr);
break;
default:
warnx("unhandled relocation type %d", (int)rtype);