/* MIPS-specific support for ELF
- Copyright (C) 1993-2016 Free Software Foundation, Inc.
+ Copyright (C) 1993-2017 Free Software Foundation, Inc.
Most of the information added by Ian Lance Taylor, Cygnus Support,
<ian@cygnus.com>.
struct elf_link_hash_entry *low;
/* The least dynamic symbol table index corresponding to a non-TLS
symbol with a GOT entry. */
- long min_got_dynindx;
+ bfd_size_type min_got_dynindx;
/* The greatest dynamic symbol table index corresponding to a symbol
with a GOT entry that is not referenced (e.g., a dynamic symbol
with dynamic relocations pointing to it from non-primary GOTs). */
- long max_unref_got_dynindx;
- /* The greatest dynamic symbol table index not corresponding to a
+ bfd_size_type max_unref_got_dynindx;
+ /* The greatest dynamic symbol table index corresponding to a local
+ symbol. */
+ bfd_size_type max_local_dynindx;
+ /* The greatest dynamic symbol table index corresponding to an external
symbol without a GOT entry. */
- long max_non_got_dynindx;
+ bfd_size_type max_non_got_dynindx;
};
/* We make up to two PLT entries if needed, one for standard MIPS code
/* True if we can only use 32-bit microMIPS instructions. */
bfd_boolean insn32;
+ /* True if we suppress checks for invalid branches between ISA modes. */
+ bfd_boolean ignore_branch_isa;
+
/* True if we're generating code for VxWorks. */
bfd_boolean is_vxworks;
/* Shortcuts to some dynamic sections, or NULL if they are not
being used. */
- asection *srelbss;
- asection *sdynbss;
- asection *srelplt;
asection *srelplt2;
- asection *sgotplt;
- asection *splt;
asection *sstubs;
- asection *sgot;
/* The master GOT information. */
struct mips_got_info *got_info;
: 0x8f998010)) /* lw t9,0x8010(gp) */
#define STUB_MOVE 0x03e07825 /* or t7,ra,zero */
#define STUB_LUI(VAL) (0x3c180000 + (VAL)) /* lui t8,VAL */
-#define STUB_JALR 0x0320f809 /* jalr t9,ra */
+#define STUB_JALR 0x0320f809 /* jalr ra,t9 */
#define STUB_ORI(VAL) (0x37180000 + (VAL)) /* ori t8,t8,VAL */
#define STUB_LI16U(VAL) (0x34180000 + (VAL)) /* ori t8,zero,VAL unsigned */
#define STUB_LI16S(abfd, VAL) \
if (htab == NULL)
return;
- sgot = htab->sgot;
+ sgot = htab->root.sgot;
indx = 0;
if (h != NULL)
BFD_ASSERT (h->plt.plist->gotplt_index != MINUS_ONE);
/* Calculate the address of the associated .got.plt entry. */
- got_address = (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
+ got_address = (htab->root.sgotplt->output_section->vma
+ + htab->root.sgotplt->output_offset
+ (h->plt.plist->gotplt_index
* MIPS_ELF_GOT_SIZE (info->output_bfd)));
g = mips_elf_bfd_got (obfd, FALSE);
got_index = ((h->dynindx - global_got_dynindx + g->local_gotno)
* MIPS_ELF_GOT_SIZE (obfd));
- BFD_ASSERT (got_index < htab->sgot->size);
+ BFD_ASSERT (got_index < htab->root.sgot->size);
return got_index;
}
BFD_ASSERT (entry);
gotidx = entry->gotidx;
- BFD_ASSERT (gotidx > 0 && gotidx < htab->sgot->size);
+ BFD_ASSERT (gotidx > 0 && gotidx < htab->root.sgot->size);
if (lookup.tls_type)
{
htab = mips_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
- sgot = htab->sgot;
+ sgot = htab->root.sgot;
gp = _bfd_get_gp_value (output_bfd)
+ mips_elf_adjust_gp (output_bfd, htab->got_info, input_bfd);
BFD_ASSERT (entry);
gotidx = entry->gotidx;
- BFD_ASSERT (gotidx > 0 && gotidx < htab->sgot->size);
+ BFD_ASSERT (gotidx > 0 && gotidx < htab->root.sgot->size);
return entry;
}
*entry = lookup;
*loc = entry;
- MIPS_ELF_PUT_WORD (abfd, value, htab->sgot->contents + entry->gotidx);
+ MIPS_ELF_PUT_WORD (abfd, value, htab->root.sgot->contents + entry->gotidx);
/* These GOT entries need a dynamic relocation on VxWorks. */
if (htab->is_vxworks)
bfd_vma got_address;
s = mips_elf_rel_dyn_section (info, FALSE);
- got_address = (htab->sgot->output_section->vma
- + htab->sgot->output_offset
+ got_address = (htab->root.sgot->output_section->vma
+ + htab->root.sgot->output_offset
+ entry->gotidx);
rloc = s->contents + (s->reloc_count++ * sizeof (Elf32_External_Rela));
struct mips_elf_hash_sort_data hsd;
struct mips_got_info *g;
- if (elf_hash_table (info)->dynsymcount == 0)
- return TRUE;
-
htab = mips_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
+ if (htab->root.dynsymcount == 0)
+ return TRUE;
+
g = htab->got_info;
if (g == NULL)
return TRUE;
hsd.low = NULL;
hsd.max_unref_got_dynindx
= hsd.min_got_dynindx
- = (elf_hash_table (info)->dynsymcount - g->reloc_only_gotno);
- hsd.max_non_got_dynindx = count_section_dynsyms (abfd, info) + 1;
- mips_elf_link_hash_traverse (((struct mips_elf_link_hash_table *)
- elf_hash_table (info)),
- mips_elf_sort_hash_table_f,
- &hsd);
+ = (htab->root.dynsymcount - g->reloc_only_gotno);
+ /* Add 1 to local symbol indices to account for the mandatory NULL entry
+ at the head of the table; see `_bfd_elf_link_renumber_dynsyms'. */
+ hsd.max_local_dynindx = count_section_dynsyms (abfd, info) + 1;
+ hsd.max_non_got_dynindx = htab->root.local_dynsymcount + 1;
+ mips_elf_link_hash_traverse (htab, mips_elf_sort_hash_table_f, &hsd);
/* There should have been enough room in the symbol table to
accommodate both the GOT and non-GOT symbols. */
+ BFD_ASSERT (hsd.max_local_dynindx <= htab->root.local_dynsymcount + 1);
BFD_ASSERT (hsd.max_non_got_dynindx <= hsd.min_got_dynindx);
- BFD_ASSERT ((unsigned long) hsd.max_unref_got_dynindx
- == elf_hash_table (info)->dynsymcount);
- BFD_ASSERT (elf_hash_table (info)->dynsymcount - hsd.min_got_dynindx
- == g->global_gotno);
+ BFD_ASSERT (hsd.max_unref_got_dynindx == htab->root.dynsymcount);
+ BFD_ASSERT (htab->root.dynsymcount - hsd.min_got_dynindx == g->global_gotno);
/* Now we know which dynamic symbol has the lowest dynamic symbol
table index in the GOT. */
switch (h->global_got_area)
{
case GGA_NONE:
- h->root.dynindx = hsd->max_non_got_dynindx++;
+ if (h->root.forced_local)
+ h->root.dynindx = hsd->max_local_dynindx++;
+ else
+ h->root.dynindx = hsd->max_non_got_dynindx++;
break;
case GGA_NORMAL:
BFD_ASSERT (htab != NULL);
/* This function may be called more than once. */
- if (htab->sgot)
+ if (htab->root.sgot)
return TRUE;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
if (s == NULL
|| ! bfd_set_section_alignment (abfd, s, 4))
return FALSE;
- htab->sgot = s;
+ htab->root.sgot = s;
/* Define the symbol _GLOBAL_OFFSET_TABLE_. We don't do this in the
linker script because we don't want to define the symbol if we
| SEC_LINKER_CREATED);
if (s == NULL)
return FALSE;
- htab->sgotplt = s;
+ htab->root.sgotplt = s;
return TRUE;
}
{
bfd_boolean micromips_p = MICROMIPS_P (abfd);
- sec = htab->splt;
+ sec = htab->root.splt;
symbol = (sec->output_section->vma
+ sec->output_offset
+ htab->plt_header_size
if (!TLS_RELOC_P (r_type)
&& !elf_hash_table (info)->dynamic_sections_created)
/* This is a static link. We must initialize the GOT entry. */
- MIPS_ELF_PUT_WORD (dynobj, symbol, htab->sgot->contents + g);
+ MIPS_ELF_PUT_WORD (dynobj, symbol, htab->root.sgot->contents + g);
}
}
else if (!htab->is_vxworks
value = mips_elf_high (addend + gp - p - 1);
else
value = mips_elf_high (addend + gp - p);
- overflowed_p = mips_elf_overflow_p (value, 16);
}
break;
when the symbol does not resolve locally. */
if (h != NULL && !SYMBOL_CALLS_LOCAL (info, &h->root))
return bfd_reloc_continue;
+ /* We can't optimize cross-mode jumps either. */
+ if (*cross_mode_jump_p)
+ return bfd_reloc_continue;
value = symbol + addend;
+ /* Neither we can non-instruction-aligned targets. */
+ if (r_type == R_MIPS_JALR ? (value & 3) != 0 : (value & 1) == 0)
+ return bfd_reloc_continue;
break;
case R_MIPS_PJUMP:
value <<= 2;
}
- if (bfd_link_pic (info) || !ok)
+ if (ok && !bfd_link_pic (info))
{
- info->callbacks->einfo
- (_("%X%H: Unsupported branch between ISA modes\n"),
- input_bfd, input_section, relocation->r_offset);
- return TRUE;
- }
+ addr = (input_section->output_section->vma
+ + input_section->output_offset
+ + relocation->r_offset
+ + 4);
+ dest = addr + (((value & 0x3ffff) ^ 0x20000) - 0x20000);
- addr = (input_section->output_section->vma
- + input_section->output_offset
- + relocation->r_offset
- + 4);
- dest = addr + (((value & 0x3ffff) ^ 0x20000) - 0x20000);
+ if ((addr >> 28) << 28 != (dest >> 28) << 28)
+ {
+ info->callbacks->einfo
+ (_("%X%H: Cannot convert branch between ISA modes "
+ "to JALX: relocation out of range\n"),
+ input_bfd, input_section, relocation->r_offset);
+ return TRUE;
+ }
- if ((addr >> 28) << 28 != (dest >> 28) << 28)
+ /* Make this the JALX opcode. */
+ x = ((dest >> 2) & 0x3ffffff) | jalx_opcode << 26;
+ }
+ else if (!mips_elf_hash_table (info)->ignore_branch_isa)
{
info->callbacks->einfo
- (_("%X%H: Cannot convert branch between ISA modes "
- "to JALX: relocation out of range\n"),
+ (_("%X%H: Unsupported branch between ISA modes\n"),
input_bfd, input_section, relocation->r_offset);
return TRUE;
}
-
- /* Make this the JALX opcode. */
- x = ((dest >> 2) & 0x3ffffff) | jalx_opcode << 26;
}
/* Try converting JAL to BAL and J(AL)R to B(AL), if the target is in
&& !cross_mode_jump_p
&& ((JAL_TO_BAL_P (input_bfd)
&& r_type == R_MIPS_26
- && (x >> 26) == 0x3) /* jal addr */
+ && (x >> 26) == 0x3) /* jal addr */
|| (JALR_TO_BAL_P (input_bfd)
&& r_type == R_MIPS_JALR
- && x == 0x0320f809) /* jalr t9 */
+ && x == 0x0320f809) /* jalr t9 */
|| (JR_TO_B_P (input_bfd)
&& r_type == R_MIPS_JALR
- && x == 0x03200008))) /* jr t9 */
+ && (x & ~1) == 0x03200008))) /* jr t9 / jalr zero, t9 */
{
bfd_vma addr;
bfd_vma dest;
off = dest - addr;
if (off <= 0x1ffff && off >= -0x20000)
{
- if (x == 0x03200008) /* jr t9 */
+ if ((x & ~1) == 0x03200008) /* jr t9 / jalr zero, t9 */
x = 0x10000000 | (((bfd_vma) off >> 2) & 0xffff); /* b addr */
else
x = 0x04110000 | (((bfd_vma) off >> 2) & 0xffff); /* bal addr */
if (!_bfd_elf_create_dynamic_sections (abfd, info))
return FALSE;
- /* Cache the sections created above. */
- htab->splt = bfd_get_linker_section (abfd, ".plt");
- htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss");
- if (htab->is_vxworks)
- {
- htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss");
- htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt");
- }
- else
- htab->srelplt = bfd_get_linker_section (abfd, ".rel.plt");
- if (!htab->sdynbss
- || (htab->is_vxworks && !htab->srelbss && !bfd_link_pic (info))
- || !htab->srelplt
- || !htab->splt)
- abort ();
-
/* Do the usual VxWorks handling. */
if (htab->is_vxworks
&& !elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2))
return TRUE;
}
\f
-bfd_boolean
-_bfd_mips_relax_section (bfd *abfd, asection *sec,
- struct bfd_link_info *link_info,
- bfd_boolean *again)
-{
- Elf_Internal_Rela *internal_relocs;
- Elf_Internal_Rela *irel, *irelend;
- Elf_Internal_Shdr *symtab_hdr;
- bfd_byte *contents = NULL;
- size_t extsymoff;
- bfd_boolean changed_contents = FALSE;
- bfd_vma sec_start = sec->output_section->vma + sec->output_offset;
- Elf_Internal_Sym *isymbuf = NULL;
-
- /* We are not currently changing any sizes, so only one pass. */
- *again = FALSE;
-
- if (bfd_link_relocatable (link_info))
- return TRUE;
-
- internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL,
- link_info->keep_memory);
- if (internal_relocs == NULL)
- return TRUE;
-
- irelend = internal_relocs + sec->reloc_count
- * get_elf_backend_data (abfd)->s->int_rels_per_ext_rel;
- symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
- extsymoff = (elf_bad_symtab (abfd)) ? 0 : symtab_hdr->sh_info;
-
- for (irel = internal_relocs; irel < irelend; irel++)
- {
- bfd_vma symval;
- bfd_signed_vma sym_offset;
- unsigned int r_type;
- unsigned long r_symndx;
- asection *sym_sec;
- unsigned long instruction;
-
- /* Turn jalr into bgezal, and jr into beq, if they're marked
- with a JALR relocation, that indicate where they jump to.
- This saves some pipeline bubbles. */
- r_type = ELF_R_TYPE (abfd, irel->r_info);
- if (r_type != R_MIPS_JALR)
- continue;
-
- r_symndx = ELF_R_SYM (abfd, irel->r_info);
- /* Compute the address of the jump target. */
- if (r_symndx >= extsymoff)
- {
- struct mips_elf_link_hash_entry *h
- = ((struct mips_elf_link_hash_entry *)
- elf_sym_hashes (abfd) [r_symndx - extsymoff]);
-
- while (h->root.root.type == bfd_link_hash_indirect
- || h->root.root.type == bfd_link_hash_warning)
- h = (struct mips_elf_link_hash_entry *) h->root.root.u.i.link;
-
- /* If a symbol is undefined, or if it may be overridden,
- skip it. */
- if (! ((h->root.root.type == bfd_link_hash_defined
- || h->root.root.type == bfd_link_hash_defweak)
- && h->root.root.u.def.section)
- || (bfd_link_pic (link_info) && ! link_info->symbolic
- && !h->root.forced_local))
- continue;
-
- sym_sec = h->root.root.u.def.section;
- if (sym_sec->output_section)
- symval = (h->root.root.u.def.value
- + sym_sec->output_section->vma
- + sym_sec->output_offset);
- else
- symval = h->root.root.u.def.value;
- }
- else
- {
- Elf_Internal_Sym *isym;
-
- /* Read this BFD's symbols if we haven't done so already. */
- if (isymbuf == NULL && symtab_hdr->sh_info != 0)
- {
- isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
- if (isymbuf == NULL)
- isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
- symtab_hdr->sh_info, 0,
- NULL, NULL, NULL);
- if (isymbuf == NULL)
- goto relax_return;
- }
-
- isym = isymbuf + r_symndx;
- if (isym->st_shndx == SHN_UNDEF)
- continue;
- else if (isym->st_shndx == SHN_ABS)
- sym_sec = bfd_abs_section_ptr;
- else if (isym->st_shndx == SHN_COMMON)
- sym_sec = bfd_com_section_ptr;
- else
- sym_sec
- = bfd_section_from_elf_index (abfd, isym->st_shndx);
- symval = isym->st_value
- + sym_sec->output_section->vma
- + sym_sec->output_offset;
- }
-
- /* Compute branch offset, from delay slot of the jump to the
- branch target. */
- sym_offset = (symval + irel->r_addend)
- - (sec_start + irel->r_offset + 4);
-
- /* Branch offset must be properly aligned. */
- if ((sym_offset & 3) != 0)
- continue;
-
- sym_offset >>= 2;
-
- /* Check that it's in range. */
- if (sym_offset < -0x8000 || sym_offset >= 0x8000)
- continue;
-
- /* Get the section contents if we haven't done so already. */
- if (!mips_elf_get_section_contents (abfd, sec, &contents))
- goto relax_return;
-
- instruction = bfd_get_32 (abfd, contents + irel->r_offset);
-
- /* If it was jalr <reg>, turn it into bgezal $zero, <target>. */
- if ((instruction & 0xfc1fffff) == 0x0000f809)
- instruction = 0x04110000;
- /* If it was jr <reg>, turn it into b <target>. */
- else if ((instruction & 0xfc1fffff) == 0x00000008)
- instruction = 0x10000000;
- else
- continue;
-
- instruction |= (sym_offset & 0xffff);
- bfd_put_32 (abfd, instruction, contents + irel->r_offset);
- changed_contents = TRUE;
- }
-
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- {
- if (!changed_contents && !link_info->keep_memory)
- free (contents);
- else
- {
- /* Cache the section contents for elf_link_input_bfd. */
- elf_section_data (sec)->this_hdr.contents = contents;
- }
- }
- return TRUE;
-
- relax_return:
- if (contents != NULL
- && elf_section_data (sec)->this_hdr.contents != contents)
- free (contents);
- return FALSE;
-}
-\f
/* Allocate space for global sym dynamic relocs. */
static bfd_boolean
bfd *dynobj;
struct mips_elf_link_hash_entry *hmips;
struct mips_elf_link_hash_table *htab;
+ asection *s, *srel;
htab = mips_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
for PLT offset calculations. */
if (htab->plt_mips_offset + htab->plt_comp_offset == 0)
{
- BFD_ASSERT (htab->sgotplt->size == 0);
+ BFD_ASSERT (htab->root.sgotplt->size == 0);
BFD_ASSERT (htab->plt_got_index == 0);
/* If we're using the PLT additions to the psABI, each PLT
Encourage better cache usage by aligning. We do this
lazily to avoid pessimizing traditional objects. */
if (!htab->is_vxworks
- && !bfd_set_section_alignment (dynobj, htab->splt, 5))
+ && !bfd_set_section_alignment (dynobj, htab->root.splt, 5))
return FALSE;
/* Make sure that .got.plt is word-aligned. We do this lazily
for the same reason as above. */
- if (!bfd_set_section_alignment (dynobj, htab->sgotplt,
+ if (!bfd_set_section_alignment (dynobj, htab->root.sgotplt,
MIPS_ELF_LOG_FILE_ALIGN (dynobj)))
return FALSE;
hmips->use_plt_entry = TRUE;
/* Make room for the R_MIPS_JUMP_SLOT relocation. */
- htab->srelplt->size += (htab->is_vxworks
- ? MIPS_ELF_RELA_SIZE (dynobj)
- : MIPS_ELF_REL_SIZE (dynobj));
+ htab->root.srelplt->size += (htab->is_vxworks
+ ? MIPS_ELF_RELA_SIZE (dynobj)
+ : MIPS_ELF_REL_SIZE (dynobj));
/* Make room for the .rela.plt.unloaded relocations. */
if (htab->is_vxworks && !bfd_link_pic (info))
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
+ if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
+ {
+ s = htab->root.sdynrelro;
+ srel = htab->root.sreldynrelro;
+ }
+ else
+ {
+ s = htab->root.sdynbss;
+ srel = htab->root.srelbss;
+ }
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
{
if (htab->is_vxworks)
- htab->srelbss->size += sizeof (Elf32_External_Rela);
+ srel->size += sizeof (Elf32_External_Rela);
else
mips_elf_allocate_dynamic_relocations (dynobj, info, 1);
h->needs_copy = 1;
dynamic will now refer to the local copy instead. */
hmips->possibly_dynamic_relocs = 0;
- return _bfd_elf_adjust_dynamic_copy (info, h, htab->sdynbss);
+ return _bfd_elf_adjust_dynamic_copy (info, h, s);
}
\f
/* This function is called after all the input files have been read,
htab = mips_elf_hash_table (info);
BFD_ASSERT (htab != NULL);
- s = htab->sgot;
+ s = htab->root.sgot;
if (s == NULL)
return TRUE;
if (htab->is_vxworks)
val += 8;
- h->root.root.u.def.section = htab->splt;
+ h->root.root.u.def.section = htab->root.splt;
h->root.root.u.def.value = val;
h->root.other = other;
}
Also create the _PROCEDURE_LINKAGE_TABLE_ symbol if we
haven't already in _bfd_elf_create_dynamic_sections. */
- if (htab->splt && htab->plt_mips_offset + htab->plt_comp_offset != 0)
+ if (htab->root.splt && htab->plt_mips_offset + htab->plt_comp_offset != 0)
{
bfd_boolean micromips_p = (MICROMIPS_P (output_bfd)
&& !htab->plt_mips_offset);
bfd_vma size;
BFD_ASSERT (htab->use_plts_and_copy_relocs);
- BFD_ASSERT (htab->sgotplt->size == 0);
- BFD_ASSERT (htab->splt->size == 0);
+ BFD_ASSERT (htab->root.sgotplt->size == 0);
+ BFD_ASSERT (htab->root.splt->size == 0);
if (htab->is_vxworks && bfd_link_pic (info))
size = 4 * ARRAY_SIZE (mips_vxworks_shared_plt0_entry);
htab->plt_header_is_comp = micromips_p;
htab->plt_header_size = size;
- htab->splt->size = (size
- + htab->plt_mips_offset
- + htab->plt_comp_offset);
- htab->sgotplt->size = (htab->plt_got_index
- * MIPS_ELF_GOT_SIZE (dynobj));
+ htab->root.splt->size = (size
+ + htab->plt_mips_offset
+ + htab->plt_comp_offset);
+ htab->root.sgotplt->size = (htab->plt_got_index
+ * MIPS_ELF_GOT_SIZE (dynobj));
mips_elf_link_hash_traverse (htab, mips_elf_set_plt_sym_value, info);
if (htab->root.hplt == NULL)
{
- h = _bfd_elf_define_linkage_sym (dynobj, info, htab->splt,
+ h = _bfd_elf_define_linkage_sym (dynobj, info, htab->root.splt,
"_PROCEDURE_LINKAGE_TABLE_");
htab->root.hplt = h;
if (h == NULL)
else if (SGI_COMPAT (output_bfd)
&& CONST_STRNEQ (name, ".compact_rel"))
s->size += mips_elf_hash_table (info)->compact_rel_size;
- else if (s == htab->splt)
+ else if (s == htab->root.splt)
{
/* If the last PLT entry has a branch delay slot, allocate
room for an extra nop to fill the delay slot. This is
s->size += 4;
}
else if (! CONST_STRNEQ (name, ".init")
- && s != htab->sgot
- && s != htab->sgotplt
+ && s != htab->root.sgot
+ && s != htab->root.sgotplt
&& s != htab->sstubs
- && s != htab->sdynbss)
+ && s != htab->root.sdynbss
+ && s != htab->root.sdynrelro)
{
/* It's not one of our sections, so don't allocate space. */
continue;
&& !MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_MIPS_OPTIONS, 0))
return FALSE;
}
- if (htab->splt->size > 0)
+ if (htab->root.splt->size > 0)
{
if (! MIPS_ELF_ADD_DYNAMIC_ENTRY (info, DT_PLTREL, 0))
return FALSE;
BFD_ASSERT (htab->use_plts_and_copy_relocs);
BFD_ASSERT (h->dynindx != -1);
- BFD_ASSERT (htab->splt != NULL);
+ BFD_ASSERT (htab->root.splt != NULL);
BFD_ASSERT (got_index != MINUS_ONE);
BFD_ASSERT (!h->def_regular);
/* Calculate the address of the PLT header. */
isa_bit = htab->plt_header_is_comp;
- header_address = (htab->splt->output_section->vma
- + htab->splt->output_offset + isa_bit);
+ header_address = (htab->root.splt->output_section->vma
+ + htab->root.splt->output_offset + isa_bit);
/* Calculate the address of the .got.plt entry. */
- got_address = (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
+ got_address = (htab->root.sgotplt->output_section->vma
+ + htab->root.sgotplt->output_offset
+ got_index * MIPS_ELF_GOT_SIZE (dynobj));
got_address_high = ((got_address + 0x8000) >> 16) & 0xffff;
got_address_low = got_address & 0xffff;
/* Initially point the .got.plt entry at the PLT header. */
- loc = (htab->sgotplt->contents + got_index * MIPS_ELF_GOT_SIZE (dynobj));
+ loc = (htab->root.sgotplt->contents + got_index * MIPS_ELF_GOT_SIZE (dynobj));
if (ABI_64_P (output_bfd))
bfd_put_64 (output_bfd, header_address, loc);
else
plt_offset = htab->plt_header_size + h->plt.plist->mips_offset;
- BFD_ASSERT (plt_offset <= htab->splt->size);
+ BFD_ASSERT (plt_offset <= htab->root.splt->size);
/* Find out where the .plt entry should go. */
- loc = htab->splt->contents + plt_offset;
+ loc = htab->root.splt->contents + plt_offset;
/* Pick the load opcode. */
load = MIPS_ELF_LOAD_WORD (output_bfd);
plt_offset = (htab->plt_header_size + htab->plt_mips_offset
+ h->plt.plist->comp_offset);
- BFD_ASSERT (plt_offset <= htab->splt->size);
+ BFD_ASSERT (plt_offset <= htab->root.splt->size);
/* Find out where the .plt entry should go. */
- loc = htab->splt->contents + plt_offset;
+ loc = htab->root.splt->contents + plt_offset;
/* Fill in the PLT entry itself. */
if (!MICROMIPS_P (output_bfd))
BFD_ASSERT (got_address % 4 == 0);
- loc_address = (htab->splt->output_section->vma
- + htab->splt->output_offset + plt_offset);
+ loc_address = (htab->root.splt->output_section->vma
+ + htab->root.splt->output_offset + plt_offset);
gotpc_offset = got_address - ((loc_address | 3) ^ 3);
/* ADDIUPC has a span of +/-16MB, check we're in range. */
(_("%B: `%A' offset of %ld from `%A' "
"beyond the range of ADDIUPC"),
output_bfd,
- htab->sgotplt->output_section,
- htab->splt->output_section,
+ htab->root.sgotplt->output_section,
+ htab->root.splt->output_section,
(long) gotpc_offset);
bfd_set_error (bfd_error_no_error);
return FALSE;
}
/* Emit an R_MIPS_JUMP_SLOT relocation against the .got.plt entry. */
- mips_elf_output_dynamic_relocation (output_bfd, htab->srelplt,
+ mips_elf_output_dynamic_relocation (output_bfd, htab->root.srelplt,
got_index - 2, h->dynindx,
R_MIPS_JUMP_SLOT, got_address);
BFD_ASSERT (h->dynindx != -1
|| h->forced_local);
- sgot = htab->sgot;
+ sgot = htab->root.sgot;
g = htab->got_info;
BFD_ASSERT (g != NULL);
&e)))
{
offset = p->gotidx;
- BFD_ASSERT (offset > 0 && offset < htab->sgot->size);
+ BFD_ASSERT (offset > 0 && offset < htab->root.sgot->size);
if (bfd_link_pic (info)
|| (elf_hash_table (info)->dynamic_sections_created
&& p->d.h != NULL
gotplt_index = h->plt.plist->gotplt_index;
BFD_ASSERT (h->dynindx != -1);
- BFD_ASSERT (htab->splt != NULL);
+ BFD_ASSERT (htab->root.splt != NULL);
BFD_ASSERT (gotplt_index != MINUS_ONE);
- BFD_ASSERT (plt_offset <= htab->splt->size);
+ BFD_ASSERT (plt_offset <= htab->root.splt->size);
/* Calculate the address of the .plt entry. */
- plt_address = (htab->splt->output_section->vma
- + htab->splt->output_offset
+ plt_address = (htab->root.splt->output_section->vma
+ + htab->root.splt->output_offset
+ plt_offset);
/* Calculate the address of the .got.plt entry. */
- got_address = (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset
+ got_address = (htab->root.sgotplt->output_section->vma
+ + htab->root.sgotplt->output_offset
+ gotplt_index * MIPS_ELF_GOT_SIZE (output_bfd));
/* Calculate the offset of the .got.plt entry from
/* Fill in the initial value of the .got.plt entry. */
bfd_put_32 (output_bfd, plt_address,
- (htab->sgotplt->contents
+ (htab->root.sgotplt->contents
+ gotplt_index * MIPS_ELF_GOT_SIZE (output_bfd)));
/* Find out where the .plt entry should go. */
- loc = htab->splt->contents + plt_offset;
+ loc = htab->root.splt->contents + plt_offset;
if (bfd_link_pic (info))
{
}
/* Emit an R_MIPS_JUMP_SLOT relocation against the .got.plt entry. */
- loc = (htab->srelplt->contents
+ loc = (htab->root.srelplt->contents
+ gotplt_index * sizeof (Elf32_External_Rela));
rel.r_offset = got_address;
rel.r_info = ELF32_R_INFO (h->dynindx, R_MIPS_JUMP_SLOT);
BFD_ASSERT (h->dynindx != -1 || h->forced_local);
- sgot = htab->sgot;
+ sgot = htab->root.sgot;
g = htab->got_info;
BFD_ASSERT (g != NULL);
if (h->needs_copy)
{
Elf_Internal_Rela rel;
+ asection *srel;
+ bfd_byte *loc;
BFD_ASSERT (h->dynindx != -1);
+ h->root.u.def.value);
rel.r_info = ELF32_R_INFO (h->dynindx, R_MIPS_COPY);
rel.r_addend = 0;
- bfd_elf32_swap_reloca_out (output_bfd, &rel,
- htab->srelbss->contents
- + (htab->srelbss->reloc_count
- * sizeof (Elf32_External_Rela)));
- ++htab->srelbss->reloc_count;
+ if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
+ srel = htab->root.sreldynrelro;
+ else
+ srel = htab->root.srelbss;
+ loc = srel->contents + srel->reloc_count * sizeof (Elf32_External_Rela);
+ bfd_elf32_swap_reloca_out (output_bfd, &rel, loc);
+ ++srel->reloc_count;
}
/* If this is a mips16/microMIPS symbol, force the value to be even. */
plt_entry = micromips_o32_exec_plt0_entry;
/* Calculate the value of .got.plt. */
- gotplt_value = (htab->sgotplt->output_section->vma
- + htab->sgotplt->output_offset);
+ gotplt_value = (htab->root.sgotplt->output_section->vma
+ + htab->root.sgotplt->output_offset);
gotplt_value_high = ((gotplt_value + 0x8000) >> 16) & 0xffff;
gotplt_value_low = gotplt_value & 0xffff;
|| ~(gotplt_value | 0x7fffffff) == 0);
/* Install the PLT header. */
- loc = htab->splt->contents;
+ loc = htab->root.splt->contents;
if (plt_entry == micromips_o32_exec_plt0_entry)
{
bfd_vma gotpc_offset;
BFD_ASSERT (gotplt_value % 4 == 0);
- loc_address = (htab->splt->output_section->vma
- + htab->splt->output_offset);
+ loc_address = (htab->root.splt->output_section->vma
+ + htab->root.splt->output_offset);
gotpc_offset = gotplt_value - ((loc_address | 3) ^ 3);
/* ADDIUPC has a span of +/-16MB, check we're in range. */
/* xgettext:c-format */
(_("%B: `%A' offset of %ld from `%A' beyond the range of ADDIUPC"),
output_bfd,
- htab->sgotplt->output_section,
- htab->splt->output_section,
+ htab->root.sgotplt->output_section,
+ htab->root.splt->output_section,
(long) gotpc_offset);
bfd_set_error (bfd_error_no_error);
return FALSE;
got_value_low = got_value & 0xffff;
/* Calculate the address of the PLT header. */
- plt_address = htab->splt->output_section->vma + htab->splt->output_offset;
+ plt_address = (htab->root.splt->output_section->vma
+ + htab->root.splt->output_offset);
/* Install the PLT header. */
- loc = htab->splt->contents;
+ loc = htab->root.splt->contents;
bfd_put_32 (output_bfd, plt_entry[0] | got_value_high, loc);
bfd_put_32 (output_bfd, plt_entry[1] | got_value_low, loc + 4);
bfd_put_32 (output_bfd, plt_entry[2], loc + 8);
/* We just need to copy the entry byte-by-byte. */
for (i = 0; i < ARRAY_SIZE (mips_vxworks_shared_plt0_entry); i++)
bfd_put_32 (output_bfd, mips_vxworks_shared_plt0_entry[i],
- htab->splt->contents + i * 4);
+ htab->root.splt->contents + i * 4);
}
/* Finish up the dynamic sections. */
sdyn = bfd_get_linker_section (dynobj, ".dynamic");
- sgot = htab->sgot;
+ sgot = htab->root.sgot;
gg = htab->got_info;
if (elf_hash_table (info)->dynamic_sections_created)
break;
case DT_PLTGOT:
- s = htab->sgot;
+ s = htab->root.sgot;
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
break;
case DT_MIPS_PLTGOT:
- s = htab->sgotplt;
+ s = htab->root.sgotplt;
dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
break;
dyn.d_un.d_ptr = s->vma;
break;
- case DT_RELASZ:
- BFD_ASSERT (htab->is_vxworks);
- /* The count does not include the JUMP_SLOT relocations. */
- if (htab->srelplt)
- dyn.d_un.d_val -= htab->srelplt->size;
- break;
-
case DT_PLTREL:
BFD_ASSERT (htab->use_plts_and_copy_relocs);
if (htab->is_vxworks)
case DT_PLTRELSZ:
BFD_ASSERT (htab->use_plts_and_copy_relocs);
- dyn.d_un.d_val = htab->srelplt->size;
+ dyn.d_un.d_val = htab->root.srelplt->size;
break;
case DT_JMPREL:
BFD_ASSERT (htab->use_plts_and_copy_relocs);
- dyn.d_un.d_ptr = (htab->srelplt->output_section->vma
- + htab->srelplt->output_offset);
+ dyn.d_un.d_ptr = (htab->root.srelplt->output_section->vma
+ + htab->root.srelplt->output_offset);
break;
case DT_TEXTREL:
}
}
- if (htab->splt && htab->splt->size > 0)
+ if (htab->root.splt && htab->root.splt->size > 0)
{
if (htab->is_vxworks)
{
}
/* A function that the linker calls to select between all or only
- 32-bit microMIPS instructions. */
+ 32-bit microMIPS instructions, and between making or ignoring
+ branch relocation checks for invalid transitions between ISA modes. */
void
-_bfd_mips_elf_insn32 (struct bfd_link_info *info, bfd_boolean on)
+_bfd_mips_elf_linker_flags (struct bfd_link_info *info, bfd_boolean insn32,
+ bfd_boolean ignore_branch_isa)
{
- mips_elf_hash_table (info)->insn32 = on;
+ mips_elf_hash_table (info)->insn32 = insn32;
+ mips_elf_hash_table (info)->ignore_branch_isa = ignore_branch_isa;
}
\f
/* Structure for saying that BFD machine EXTENSION extends BASE. */
return n;
}
+/* Return the ABI flags associated with ABFD if available. */
+
+Elf_Internal_ABIFlags_v0 *
+bfd_mips_elf_get_abiflags (bfd *abfd)
+{
+ struct mips_elf_obj_tdata *tdata = mips_elf_tdata (abfd);
+
+ return tdata->abiflags_valid ? &tdata->abiflags : NULL;
+}
+
void
_bfd_mips_post_process_headers (bfd *abfd, struct bfd_link_info *link_info)
{
if (mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64
|| mips_elf_tdata (abfd)->abiflags.fp_abi == Val_GNU_MIPS_ABI_FP_64A)
i_ehdrp->e_ident[EI_ABIVERSION] = 3;
-
- if (elf_stack_flags (abfd) && !(elf_stack_flags (abfd) & PF_X))
- i_ehdrp->e_ident[EI_ABIVERSION] = 5;
}
int
projects / deliverable / binutils-gdb.git / blobdiff