diff options
Diffstat (limited to 'bfd/elf64-x86-64.c')
-rw-r--r-- | bfd/elf64-x86-64.c | 175 |
1 files changed, 81 insertions, 94 deletions
diff --git a/bfd/elf64-x86-64.c b/bfd/elf64-x86-64.c index a3c36ff67dc..f13b4d2207c 100644 --- a/bfd/elf64-x86-64.c +++ b/bfd/elf64-x86-64.c @@ -1,22 +1,22 @@ /* X86-64 specific support for 64-bit ELF - Copyright 2000, 2001, 2002 Free Software Foundation, Inc. + Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc. Contributed by Jan Hubicka <jh@suse.cz>. -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" @@ -1091,9 +1091,6 @@ elf64_x86_64_gc_sweep_hook (abfd, info, sec, relocs) struct elf_link_hash_entry **sym_hashes; bfd_signed_vma *local_got_refcounts; const Elf_Internal_Rela *rel, *relend; - unsigned long r_symndx; - int r_type; - struct elf_link_hash_entry *h; elf_section_data (sec)->local_dynrel = NULL; @@ -1103,85 +1100,79 @@ elf64_x86_64_gc_sweep_hook (abfd, info, sec, relocs) relend = relocs + sec->reloc_count; for (rel = relocs; rel < relend; rel++) - switch ((r_type = elf64_x86_64_tls_transition (info, - ELF64_R_TYPE (rel->r_info), - ELF64_R_SYM (rel->r_info) - >= symtab_hdr->sh_info))) - { - case R_X86_64_TLSLD: - if (elf64_x86_64_hash_table (info)->tls_ld_got.refcount > 0) - elf64_x86_64_hash_table (info)->tls_ld_got.refcount -= 1; - break; - - case R_X86_64_TLSGD: - case R_X86_64_GOTTPOFF: - case R_X86_64_GOT32: - case R_X86_64_GOTPCREL: - r_symndx = ELF64_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - if (h->got.refcount > 0) - h->got.refcount -= 1; - } - else if (local_got_refcounts != NULL) - { - if (local_got_refcounts[r_symndx] > 0) - local_got_refcounts[r_symndx] -= 1; - } - break; + { + unsigned long r_symndx; + unsigned int r_type; + struct elf_link_hash_entry *h = NULL; - case R_X86_64_8: - case R_X86_64_16: - case R_X86_64_32: - case R_X86_64_64: - case R_X86_64_32S: - case R_X86_64_PC8: - case R_X86_64_PC16: - case R_X86_64_PC32: - r_symndx = ELF64_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - struct elf64_x86_64_link_hash_entry *eh; - struct elf64_x86_64_dyn_relocs **pp; - struct elf64_x86_64_dyn_relocs *p; + r_symndx = ELF64_R_SYM (rel->r_info); + if (r_symndx >= symtab_hdr->sh_info) + { + struct elf64_x86_64_link_hash_entry *eh; + struct elf64_x86_64_dyn_relocs **pp; + struct elf64_x86_64_dyn_relocs *p; - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + h = sym_hashes[r_symndx - symtab_hdr->sh_info]; + eh = (struct elf64_x86_64_link_hash_entry *) h; - if (!info->shared && h->plt.refcount > 0) - h->plt.refcount -= 1; + for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) + if (p->sec == sec) + { + /* Everything must go for SEC. */ + *pp = p->next; + break; + } + } - eh = (struct elf64_x86_64_link_hash_entry *) h; + r_type = ELF64_R_TYPE (rel->r_info); + r_type = elf64_x86_64_tls_transition (info, r_type, h != NULL); + switch (r_type) + { + case R_X86_64_TLSLD: + if (elf64_x86_64_hash_table (info)->tls_ld_got.refcount > 0) + elf64_x86_64_hash_table (info)->tls_ld_got.refcount -= 1; + break; - for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) - if (p->sec == sec) - { - if (ELF64_R_TYPE (rel->r_info) == R_X86_64_PC8 - || ELF64_R_TYPE (rel->r_info) == R_X86_64_PC16 - || ELF64_R_TYPE (rel->r_info) == R_X86_64_PC32) - p->pc_count -= 1; - p->count -= 1; - if (p->count == 0) - *pp = p->next; - break; - } - } - break; + case R_X86_64_TLSGD: + case R_X86_64_GOTTPOFF: + case R_X86_64_GOT32: + case R_X86_64_GOTPCREL: + if (h != NULL) + { + if (h->got.refcount > 0) + h->got.refcount -= 1; + } + else if (local_got_refcounts != NULL) + { + if (local_got_refcounts[r_symndx] > 0) + local_got_refcounts[r_symndx] -= 1; + } + break; + case R_X86_64_8: + case R_X86_64_16: + case R_X86_64_32: + case R_X86_64_64: + case R_X86_64_32S: + case R_X86_64_PC8: + case R_X86_64_PC16: + case R_X86_64_PC32: + if (info->shared) + break; + /* Fall thru */ - case R_X86_64_PLT32: - r_symndx = ELF64_R_SYM (rel->r_info); - if (r_symndx >= symtab_hdr->sh_info) - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - if (h->plt.refcount > 0) - h->plt.refcount -= 1; - } - break; + case R_X86_64_PLT32: + if (h != NULL) + { + if (h->plt.refcount > 0) + h->plt.refcount -= 1; + } + break; - default: - break; - } + default: + break; + } + } return TRUE; } @@ -1921,7 +1912,6 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section, else if (h->root.type == bfd_link_hash_undefweak) relocation = 0; else if (info->shared - && (!info->symbolic || info->allow_shlib_undefined) && !info->no_undefined && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) relocation = 0; @@ -2106,7 +2096,6 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section, /* When generating a shared object, these relocations are copied into the output file to be resolved at run time. */ - skip = FALSE; relocate = FALSE; @@ -2330,7 +2319,7 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section, if ((off & 1) != 0) off &= ~1; - else + else { Elf_Internal_Rela outrel; bfd_byte *loc; @@ -2408,12 +2397,12 @@ elf64_x86_64_relocate_section (output_bfd, info, input_bfd, input_section, addq foo@gottpoff(%rip), %rax */ BFD_ASSERT (rel->r_offset >= 4); for (i = 0; i < 4; i++) - BFD_ASSERT (bfd_get_8 (input_bfd, + BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset - 4 + i) == tlsgd[i]); BFD_ASSERT (rel->r_offset + 12 <= input_section->_raw_size); for (i = 0; i < 4; i++) - BFD_ASSERT (bfd_get_8 (input_bfd, + BFD_ASSERT (bfd_get_8 (input_bfd, contents + rel->r_offset + 4 + i) == tlsgd[i+4]); BFD_ASSERT (rel + 1 < relend); @@ -2592,7 +2581,6 @@ elf64_x86_64_finish_dynamic_symbol (output_bfd, info, h, sym) /* This symbol has an entry in the procedure linkage table. Set it up. */ - if (h->dynindx == -1 || htab->splt == NULL || htab->sgotplt == NULL @@ -2671,7 +2659,6 @@ elf64_x86_64_finish_dynamic_symbol (output_bfd, info, h, sym) /* This symbol has an entry in the global offset table. Set it up. */ - if (htab->sgot == NULL || htab->srelgot == NULL) abort (); |