diff options
Diffstat (limited to 'util/cbfstool/rmodule.c')
| -rw-r--r-- | util/cbfstool/rmodule.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/util/cbfstool/rmodule.c b/util/cbfstool/rmodule.c index ce005108edb8..02f1d90785df 100644 --- a/util/cbfstool/rmodule.c +++ b/util/cbfstool/rmodule.c @@ -155,6 +155,19 @@ static int relocation_for_absolute_symbol(struct rmod_context *ctx, Elf64_Rela * return 0; } +static int relocation_for_weak_extern_symbols(struct rmod_context *ctx, Elf64_Rela *r) +{ + Elf64_Sym *s = &ctx->pelf.syms[ELF64_R_SYM(r->r_info)]; + + if (ELF64_ST_BIND(s->st_info) == STB_WEAK && ELF64_ST_TYPE(s->st_info) == STT_NOTYPE) { + DEBUG("Omitting relocation for undefined extern: %s\n", + &ctx->strtab[s->st_name]); + return 1; + } + + return 0; +} + /* * Relocation processing loops. */ @@ -197,6 +210,9 @@ static int for_each_reloc(struct rmod_context *ctx, struct reloc_filter *f, if (relocation_for_absolute_symbol(ctx, r)) continue; + if (relocation_for_weak_extern_symbols(ctx, r)) + continue; + /* Allow the provided filter to have precedence. */ if (f != NULL) { filter_emit = f->filter(f, r); |