From 605f3766434cbed0e7a719545639b8a1e926e14c Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Fri, 18 Jan 2013 22:50:26 +0000 Subject: Resolve size relocation against non-zero TLS symbol bfd/ * elf32-i386.c (elf_i386_allocate_dynrelocs): Clear pc_count for non-zero TLS symbol. (elf_i386_relocate_section): Resolve size relocation against non-zero TLS symbol. * elf64-x86-64.c (elf_x86_64_allocate_dynrelocs): Clear pc_count for non-zero TLS symbol. (elf_x86_64_relocate_section): Resolve size relocation against non-zero TLS symbol. ld/testsuite/ * ld-size/size-10.rd: Updated. * ld-size/size-8.rd: Likewise. * ld-size/size32-2-i386.d: Likewise. * ld-size/size32-2-x32.d: Likewise. * ld-size/size32-2-x86-64.d: Likewise. * ld-size/size64-2-x32.d: Likewise. * ld-size/size64-2-x86-64.d: Likewise. --- bfd/elf64-x86-64.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'bfd/elf64-x86-64.c') diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index 79b6dc6060..71f33e2b80 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -2400,6 +2400,24 @@ elf_x86_64_allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) if (eh->dyn_relocs == NULL) return TRUE; + /* Since pc_count for TLS symbol can only have size relocations and + we always resolve size relocation against non-zero TLS symbol, we + clear pc_count for non-zero TLS symbol. */ + if (h->type == STT_TLS && h->size != 0) + { + struct elf_dyn_relocs **pp; + + for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) + { + p->count -= p->pc_count; + p->pc_count = 0; + if (p->count == 0) + *pp = p->next; + else + pp = &p->next; + } + } + /* In the shared -Bsymbolic case, discard space allocated for dynamic pc-relative relocs against symbols which turn out to be defined in regular objects. For the normal shared case, discard @@ -3687,6 +3705,12 @@ elf_x86_64_relocate_section (bfd *output_bfd, case R_X86_64_SIZE64: /* Set to symbol size. */ relocation = st_size; + if (h && h->type == STT_TLS && st_size != 0) + { + /* Resolve size relocation against non-zero TLS symbol. */ + unresolved_reloc = FALSE; + break; + } goto direct; case R_X86_64_PC8: -- cgit v1.2.1