/* IBM S/390-specific support for ELF 32 and 64 bit functions
- Copyright (C) 2000-2017 Free Software Foundation, Inc.
+ Copyright (C) 2000-2020 Free Software Foundation, Inc.
Contributed by Andreas Krebbel.
This file is part of BFD, the Binary File Descriptor library.
return h->type == STT_GNU_IFUNC || eh->ifunc_resolver_address != 0;
}
+/* Return true if .got.plt is supposed to be emitted after .got. */
+
+static inline bfd_boolean
+s390_gotplt_after_got_p (struct bfd_link_info *info)
+{
+ struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info);
+
+ if (!htab->elf.sgot || !htab->elf.sgotplt)
+ return TRUE;
+
+ if (htab->elf.sgot->output_section == htab->elf.sgotplt->output_section)
+ {
+ if (htab->elf.sgot->output_offset < htab->elf.sgotplt->output_offset)
+ return TRUE;
+ }
+ else
+ {
+ if (htab->elf.sgot->output_section->vma
+ <= htab->elf.sgotplt->output_section->vma)
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/* Return the value of the _GLOBAL_OFFSET_TABLE_ symbol. */
+
+static inline bfd_vma
+s390_got_pointer (struct bfd_link_info *info)
+{
+ struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info);
+ bfd_vma got_pointer;
+
+ BFD_ASSERT (htab && htab->elf.hgot);
+
+ got_pointer = (htab->elf.hgot->root.u.def.section->output_section->vma
+ + htab->elf.hgot->root.u.def.section->output_offset);
+ /* Our ABI requires the GOT pointer to point at the very beginning
+ of the global offset table. */
+ BFD_ASSERT (got_pointer
+ <= (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset));
+ BFD_ASSERT (got_pointer
+ <= (htab->elf.sgotplt->output_section->vma
+ + htab->elf.sgotplt->output_offset));
+
+ return got_pointer;
+}
+
+
+/* Return the offset of the .got versus _GLOBAL_OFFSET_TABLE_. */
+
+static inline bfd_vma
+s390_got_offset (struct bfd_link_info *info)
+{
+ struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info);
+
+ /* The absolute address of the .got in the target image. */
+ bfd_vma got_address = (htab->elf.sgot->output_section->vma
+ + htab->elf.sgot->output_offset);
+
+ /* GOT offset must not be negative. */
+ BFD_ASSERT (s390_got_pointer (info) <= got_address);
+ return got_address - s390_got_pointer (info);
+}
+
+/* Return the offset of the .got.plt versus _GLOBAL_OFFSET_TABLE_. */
+
+static inline bfd_vma
+s390_gotplt_offset (struct bfd_link_info *info)
+{
+ struct elf_s390_link_hash_table *htab = elf_s390_hash_table (info);
+
+ /* The absolute address of the .got.plt in the target image. */
+ bfd_vma gotplt_address = (htab->elf.sgotplt->output_section->vma
+ + htab->elf.sgotplt->output_offset);
+
+ /* GOT offset must not be negative. */
+ BFD_ASSERT (s390_got_pointer (info) <= gotplt_address);
+ return gotplt_address - s390_got_pointer (info);
+}
+
/* Create sections needed by STT_GNU_IFUNC symbol. */
static bfd_boolean
s = bfd_make_section_with_flags (abfd, ".rela.ifunc",
flags | SEC_READONLY);
if (s == NULL
- || ! bfd_set_section_alignment (abfd, s,
- bed->s->log_file_align))
+ || !bfd_set_section_alignment (s, bed->s->log_file_align))
return FALSE;
htab->irelifunc = s;
}
s = bfd_make_section_with_flags (abfd, ".iplt",
flags | SEC_CODE | SEC_READONLY);
if (s == NULL
- || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
+ || !bfd_set_section_alignment (s, bed->plt_alignment))
return FALSE;
htab->iplt = s;
s = bfd_make_section_with_flags (abfd, ".rela.iplt", flags | SEC_READONLY);
if (s == NULL
- || ! bfd_set_section_alignment (abfd, s,
- bed->s->log_file_align))
+ || !bfd_set_section_alignment (s, bed->s->log_file_align))
return FALSE;
htab->irelplt = s;
s = bfd_make_section_with_flags (abfd, ".igot.plt", flags);
if (s == NULL
- || !bfd_set_section_alignment (abfd, s,
- bed->s->log_file_align))
+ || !bfd_set_section_alignment (s, bed->s->log_file_align))
return FALSE;
htab->igotplt = s;
struct elf_dyn_relocs *p;
struct elf_link_hash_table *htab;
struct elf_s390_link_hash_entry *eh = (struct elf_s390_link_hash_entry*)h;
- struct elf_dyn_relocs **head = &eh->dyn_relocs;
+ struct elf_dyn_relocs **head = &h->dyn_relocs;
htab = elf_hash_table (info);
eh->ifunc_resolver_address = h->root.u.def.value;
return TRUE;
}
-keep:
+ keep:
/* Without checking h->plt.refcount here we allocate a PLT slot.
When setting plt.refcount in check_relocs it might not have been
known that this will be an IFUNC symol. */
return TRUE;
}
-/* Pick ELFOSABI_GNU if IFUNC symbols are used. */
-
-static bfd_boolean
-elf_s390_add_symbol_hook (bfd *abfd,
- struct bfd_link_info *info,
- Elf_Internal_Sym *sym,
- const char **namep ATTRIBUTE_UNUSED,
- flagword *flagsp ATTRIBUTE_UNUSED,
- asection **secp ATTRIBUTE_UNUSED,
- bfd_vma *valp ATTRIBUTE_UNUSED)
-{
- if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC
- && (abfd->flags & DYNAMIC) == 0
- && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour)
- elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc;
-
- return TRUE;
-}
-
/* Whether to sort relocs output by ld -r or ld --emit-relocs, by
r_offset. Don't do so for code sections. We want to keep ordering
of GDCALL / PLT32DBL for TLS optimizations as is. On the other
if (in_attr->i > 2)
_bfd_error_handler
/* xgettext:c-format */
- (_("Warning: %B uses unknown vector ABI %d"), ibfd,
+ (_("warning: %pB uses unknown vector ABI %d"), ibfd,
in_attr->i);
else if (out_attr->i > 2)
_bfd_error_handler
/* xgettext:c-format */
- (_("Warning: %B uses unknown vector ABI %d"), obfd,
+ (_("warning: %pB uses unknown vector ABI %d"), obfd,
out_attr->i);
else if (in_attr->i != out_attr->i)
{
_bfd_error_handler
/* xgettext:c-format */
- (_("Warning: %B uses vector %s ABI, %B uses %s ABI"),
+ (_("warning: %pB uses vector %s ABI, %pB uses %s ABI"),
ibfd, abi_str[in_attr->i], obfd, abi_str[out_attr->i]);
}
if (in_attr->i > out_attr->i)
projects / deliverable / binutils-gdb.git / blobdiff