/* 32-bit ELF support for ARM
- Copyright (C) 1998-2016 Free Software Foundation, Inc.
+ Copyright (C) 1998-2017 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
/* How many R_ARM_TLS_DESC relocations were generated so far. */
bfd_vma num_tls_desc;
- /* Short-cuts to get to dynamic linker sections. */
- asection *sdynbss;
- asection *srelbss;
-
/* The (unloaded but important) VxWorks .rela.plt.unloaded section. */
asection *srelplt2;
}
static inline int
-popcount (unsigned int mask)
+elf32_arm_popcount (unsigned int mask)
{
#if GCC_VERSION >= 3004
return __builtin_popcount (mask);
#else
- unsigned int i, sum = 0;
+ unsigned int i;
+ int sum = 0;
for (i = 0; i < 8 * sizeof (mask); i++)
{
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
return FALSE;
- htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss");
- if (!bfd_link_pic (info))
- htab->srelbss = bfd_get_linker_section (dynobj,
- RELOC_SECTION (htab, ".bss"));
-
if (htab->vxworks_p)
{
if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
if (!htab->root.splt
|| !htab->root.srelplt
- || !htab->sdynbss
- || (!bfd_link_pic (info) && !htab->srelbss))
+ || !htab->root.sdynbss
+ || (!bfd_link_pic (info) && !htab->root.srelbss))
abort ();
return TRUE;
/* The field encoding the register list is the same for both LDMIA
and LDMDB encodings. */
if (is_thumb2_ldmia (insn) || is_thumb2_ldmdb (insn))
- nb_words = popcount (insn & 0x0000ffff);
+ nb_words = elf32_arm_popcount (insn & 0x0000ffff);
else if (is_thumb2_vldm (insn))
nb_words = (insn & 0xff);
else if (h != NULL
&& h->dynindx != -1
&& (!bfd_link_pic (info)
- || !SYMBOLIC_BIND (info, h)
+ || !(bfd_link_pie (info)
+ || SYMBOLIC_BIND (info, h))
|| !h->def_regular))
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
else
struct elf_link_hash_entry * h)
{
bfd * dynobj;
- asection * s;
+ asection *s, *srel;
struct elf32_arm_link_hash_entry * eh;
struct elf32_arm_link_hash_table *globals;
determine the address it must put in the global offset table, so
both the dynamic object and the regular object will refer to the
same memory location for the variable. */
- s = bfd_get_linker_section (dynobj, ".dynbss");
- BFD_ASSERT (s != NULL);
-
/* If allowed, we must generate a R_ARM_COPY reloc to tell the dynamic
linker to copy the initial value out of the dynamic object and into
the runtime process image. We need to remember the offset into the
.rel(a).bss section we are going to use. */
+ if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
+ {
+ s = globals->root.sdynrelro;
+ srel = globals->root.sreldynrelro;
+ }
+ else
+ {
+ s = globals->root.sdynbss;
+ srel = globals->root.srelbss;
+ }
if (info->nocopyreloc == 0
&& (h->root.u.def.section->flags & SEC_ALLOC) != 0
&& h->size != 0)
{
- asection *srel;
-
- srel = bfd_get_linker_section (dynobj, RELOC_SECTION (globals, ".bss"));
elf32_arm_allocate_dynrelocs (info, srel, 1);
h->needs_copy = 1;
}
&& s != htab->root.sgotplt
&& s != htab->root.iplt
&& s != htab->root.igotplt
- && s != htab->sdynbss)
+ && s != htab->root.sdynbss
+ && s != htab->root.sdynrelro)
{
/* It's not one of our sections, so don't allocate space. */
continue;
&& (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak));
- s = htab->srelbss;
- BFD_ASSERT (s != NULL);
-
rel.r_addend = 0;
rel.r_offset = (h->root.u.def.value
+ h->root.u.def.section->output_section->vma
+ h->root.u.def.section->output_offset);
rel.r_info = ELF32_R_INFO (h->dynindx, R_ARM_COPY);
+ if (h->root.u.def.section == htab->root.sdynrelro)
+ s = htab->root.sreldynrelro;
+ else
+ s = htab->root.srelbss;
elf32_arm_add_dynreloc (output_bfd, info, s, &rel);
}
int insn_all_registers = initial_insn & 0x0000ffff;
int insn_low_registers, insn_high_registers;
int usable_register_mask;
- int nb_registers = popcount (insn_all_registers);
+ int nb_registers = elf32_arm_popcount (insn_all_registers);
int restore_pc = (insn_all_registers & (1 << 15)) ? 1 : 0;
int restore_rn = (insn_all_registers & (1 << rn)) ? 1 : 0;
bfd_byte *current_stub_contents = base_stub_contents;
BFD_ASSERT (!wback || !restore_rn);
/* - nb_registers > 8. */
- BFD_ASSERT (popcount (insn_all_registers) > 8);
+ BFD_ASSERT (elf32_arm_popcount (insn_all_registers) > 8);
/* At this point, LDMxx initial insn loads between 9 and 14 registers. */
int usable_register_mask;
int restore_pc = (insn_all_registers & (1 << 15)) ? 1 : 0;
int restore_rn = (insn_all_registers & (1 << rn)) ? 1 : 0;
- int nb_registers = popcount (insn_all_registers);
+ int nb_registers = elf32_arm_popcount (insn_all_registers);
bfd_byte *current_stub_contents = base_stub_contents;
BFD_ASSERT (is_thumb2_ldmdb (initial_insn));
BFD_ASSERT (!wback || !restore_rn);
/* - nb_registers > 8. */
- BFD_ASSERT (popcount (insn_all_registers) > 8);
+ BFD_ASSERT (elf32_arm_popcount (insn_all_registers) > 8);
/* At this point, LDMxx initial insn loads between 9 and 14 registers. */
#define elf_backend_plt_readonly 1
#define elf_backend_want_got_plt 1
#define elf_backend_want_plt_sym 0
+#define elf_backend_want_dynrelro 1
#define elf_backend_may_use_rel_p 1
#define elf_backend_may_use_rela_p 0
#define elf_backend_default_use_rela_p 0
projects / deliverable / binutils-gdb.git / blobdiff