#include "sysdep.h"
#include "bfd.h"
+#include "bfd_stdint.h"
#include "bfdlink.h"
#include "libbfd.h"
#define ARCH_SIZE 0
h = (struct elf_link_hash_entry *) bh;
h->def_regular = 1;
h->non_elf = 0;
+ h->root.linker_def = 1;
h->type = STT_OBJECT;
if (ELF_ST_VISIBILITY (h->other) != STV_INTERNAL)
h->other = (h->other & ~ELF_ST_VISIBILITY (-1)) | STV_HIDDEN;
if (symvis - 1 < hvis - 1)
h->other = symvis | (h->other & ~ELF_ST_VISIBILITY (-1));
}
+ else if (definition && ELF_ST_VISIBILITY (isym->st_other) != STV_DEFAULT)
+ h->protected_def = 1;
}
/* This function is called when we want to merge a new symbol with an
if (!h->def_dynamic
|| h->def_regular
|| h->dynindx == -1
- || h->verinfo.verdef == NULL)
+ || h->verinfo.verdef == NULL
+ || (elf_dyn_lib_class (h->verinfo.verdef->vd_bfd)
+ & (DYN_AS_NEEDED | DYN_DT_NEEDED | DYN_NO_NEEDED)))
return TRUE;
/* See if we already know about this version. */
DYNBSS. */
bfd_boolean
-_bfd_elf_adjust_dynamic_copy (struct elf_link_hash_entry *h,
+_bfd_elf_adjust_dynamic_copy (struct bfd_link_info *info,
+ struct elf_link_hash_entry *h,
asection *dynbss)
{
unsigned int power_of_two;
/* Increment the size of DYNBSS to make room for the symbol. */
dynbss->size += h->size;
+ if (h->protected_def)
+ {
+ info->callbacks->einfo
+ (_("%P: copy reloc against protected `%T' is invalid\n"),
+ h->root.root.string);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
+ }
+
return TRUE;
}
return r;
}
+/* qsort comparison functions sorting external relocs by r_offset. */
+
+static int
+cmp_ext32l_r_offset (const void *p, const void *q)
+{
+ union aligned32
+ {
+ uint32_t v;
+ unsigned char c[4];
+ };
+ const union aligned32 *a
+ = (const union aligned32 *) ((const Elf32_External_Rel *) p)->r_offset;
+ const union aligned32 *b
+ = (const union aligned32 *) ((const Elf32_External_Rel *) q)->r_offset;
+
+ uint32_t aval = ( (uint32_t) a->c[0]
+ | (uint32_t) a->c[1] << 8
+ | (uint32_t) a->c[2] << 16
+ | (uint32_t) a->c[3] << 24);
+ uint32_t bval = ( (uint32_t) b->c[0]
+ | (uint32_t) b->c[1] << 8
+ | (uint32_t) b->c[2] << 16
+ | (uint32_t) b->c[3] << 24);
+ if (aval < bval)
+ return -1;
+ else if (aval > bval)
+ return 1;
+ return 0;
+}
+
+static int
+cmp_ext32b_r_offset (const void *p, const void *q)
+{
+ union aligned32
+ {
+ uint32_t v;
+ unsigned char c[4];
+ };
+ const union aligned32 *a
+ = (const union aligned32 *) ((const Elf32_External_Rel *) p)->r_offset;
+ const union aligned32 *b
+ = (const union aligned32 *) ((const Elf32_External_Rel *) q)->r_offset;
+
+ uint32_t aval = ( (uint32_t) a->c[0] << 24
+ | (uint32_t) a->c[1] << 16
+ | (uint32_t) a->c[2] << 8
+ | (uint32_t) a->c[3]);
+ uint32_t bval = ( (uint32_t) b->c[0] << 24
+ | (uint32_t) b->c[1] << 16
+ | (uint32_t) b->c[2] << 8
+ | (uint32_t) b->c[3]);
+ if (aval < bval)
+ return -1;
+ else if (aval > bval)
+ return 1;
+ return 0;
+}
+
+#ifdef BFD_HOST_64_BIT
+static int
+cmp_ext64l_r_offset (const void *p, const void *q)
+{
+ union aligned64
+ {
+ uint64_t v;
+ unsigned char c[8];
+ };
+ const union aligned64 *a
+ = (const union aligned64 *) ((const Elf64_External_Rel *) p)->r_offset;
+ const union aligned64 *b
+ = (const union aligned64 *) ((const Elf64_External_Rel *) q)->r_offset;
+
+ uint64_t aval = ( (uint64_t) a->c[0]
+ | (uint64_t) a->c[1] << 8
+ | (uint64_t) a->c[2] << 16
+ | (uint64_t) a->c[3] << 24
+ | (uint64_t) a->c[4] << 32
+ | (uint64_t) a->c[5] << 40
+ | (uint64_t) a->c[6] << 48
+ | (uint64_t) a->c[7] << 56);
+ uint64_t bval = ( (uint64_t) b->c[0]
+ | (uint64_t) b->c[1] << 8
+ | (uint64_t) b->c[2] << 16
+ | (uint64_t) b->c[3] << 24
+ | (uint64_t) b->c[4] << 32
+ | (uint64_t) b->c[5] << 40
+ | (uint64_t) b->c[6] << 48
+ | (uint64_t) b->c[7] << 56);
+ if (aval < bval)
+ return -1;
+ else if (aval > bval)
+ return 1;
+ return 0;
+}
+
+static int
+cmp_ext64b_r_offset (const void *p, const void *q)
+{
+ union aligned64
+ {
+ uint64_t v;
+ unsigned char c[8];
+ };
+ const union aligned64 *a
+ = (const union aligned64 *) ((const Elf64_External_Rel *) p)->r_offset;
+ const union aligned64 *b
+ = (const union aligned64 *) ((const Elf64_External_Rel *) q)->r_offset;
+
+ uint64_t aval = ( (uint64_t) a->c[0] << 56
+ | (uint64_t) a->c[1] << 48
+ | (uint64_t) a->c[2] << 40
+ | (uint64_t) a->c[3] << 32
+ | (uint64_t) a->c[4] << 24
+ | (uint64_t) a->c[5] << 16
+ | (uint64_t) a->c[6] << 8
+ | (uint64_t) a->c[7]);
+ uint64_t bval = ( (uint64_t) b->c[0] << 56
+ | (uint64_t) b->c[1] << 48
+ | (uint64_t) b->c[2] << 40
+ | (uint64_t) b->c[3] << 32
+ | (uint64_t) b->c[4] << 24
+ | (uint64_t) b->c[5] << 16
+ | (uint64_t) b->c[6] << 8
+ | (uint64_t) b->c[7]);
+ if (aval < bval)
+ return -1;
+ else if (aval > bval)
+ return 1;
+ return 0;
+}
+#endif
+
/* When performing a relocatable link, the input relocations are
preserved. But, if they reference global symbols, the indices
referenced must be updated. Update all the relocations found in
static void
elf_link_adjust_relocs (bfd *abfd,
- struct bfd_elf_section_reloc_data *reldata)
+ struct bfd_elf_section_reloc_data *reldata,
+ bfd_boolean sort)
{
unsigned int i;
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
| (irela[j].r_info & r_type_mask));
(*swap_out) (abfd, irela, erela);
}
+
+ if (sort)
+ {
+ int (*compare) (const void *, const void *);
+
+ if (bed->s->arch_size == 32)
+ {
+ if (abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
+ compare = cmp_ext32l_r_offset;
+ else if (abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
+ compare = cmp_ext32b_r_offset;
+ else
+ abort ();
+ }
+ else
+ {
+#ifdef BFD_HOST_64_BIT
+ if (abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)
+ compare = cmp_ext64l_r_offset;
+ else if (abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
+ compare = cmp_ext64b_r_offset;
+ else
+#endif
+ abort ();
+ }
+ qsort (reldata->hdr->contents, count, reldata->hdr->sh_entsize, compare);
+ free (reldata->hashes);
+ reldata->hashes = NULL;
+ }
}
struct elf_link_sort_rela
if (!h->def_regular)
{
- if (h->verinfo.verdef == NULL)
+ if (h->verinfo.verdef == NULL
+ || (elf_dyn_lib_class (h->verinfo.verdef->vd_bfd)
+ & (DYN_AS_NEEDED | DYN_DT_NEEDED | DYN_NO_NEEDED)))
iversym.vs_vers = 0;
else
iversym.vs_vers = h->verinfo.verdef->vd_exp_refno + 1;
for (o = abfd->sections; o != NULL; o = o->next)
{
struct bfd_elf_section_data *esdo = elf_section_data (o);
+ bfd_boolean sort;
if ((o->flags & SEC_RELOC) == 0)
continue;
+ sort = bed->sort_relocs_p == NULL || (*bed->sort_relocs_p) (o);
if (esdo->rel.hdr != NULL)
- elf_link_adjust_relocs (abfd, &esdo->rel);
+ elf_link_adjust_relocs (abfd, &esdo->rel, sort);
if (esdo->rela.hdr != NULL)
- elf_link_adjust_relocs (abfd, &esdo->rela);
+ elf_link_adjust_relocs (abfd, &esdo->rela, sort);
/* Set the reloc_count field to 0 to prevent write_relocs from
trying to swap the relocs out itself. */
|| ELF_ST_BIND (cookie->locsyms[r_symndx].st_info) != STB_LOCAL)
{
h = cookie->sym_hashes[r_symndx - cookie->extsymoff];
+ if (h == NULL)
+ {
+ info->callbacks->einfo (_("%F%P: corrupt input: %B\n"),
+ sec->owner);
+ return NULL;
+ }
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
if ((h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
- && discarded_section (h->root.u.def.section))
+ && (h->root.u.def.section->owner != rcookie->abfd
+ || h->root.u.def.section->kept_section != NULL
+ || discarded_section (h->root.u.def.section)))
return TRUE;
- else
- return FALSE;
}
else
{
/* Need to: get the symbol; get the section. */
isym = &rcookie->locsyms[r_symndx];
isec = bfd_section_from_elf_index (rcookie->abfd, isym->st_shndx);
- if (isec != NULL && discarded_section (isec))
+ if (isec != NULL
+ && (isec->kept_section != NULL
+ || discarded_section (isec)))
return TRUE;
}
return FALSE;
}
}
- o = NULL;
- if (!info->relocatable)
- o = bfd_get_section_by_name (output_bfd, ".eh_frame");
+ o = bfd_get_section_by_name (output_bfd, ".eh_frame");
if (o != NULL)
{
asection *i;
projects / deliverable / binutils-gdb.git / blobdiff