// aarch64.cc -- aarch64 target support for gold.
-// Copyright (C) 2014-2016 Free Software Foundation, Inc.
+// Copyright (C) 2014-2017 Free Software Foundation, Inc.
// Written by Jing Yu <jingyu@google.com> and Han Shen <shenhan@google.com>.
// This file is part of gold.
uint64_t imm = ((adrp >> 29) & mask2) | (((adrp >> 5) & mask19) << 2);
// Retrieve msb of 21-bit-signed imm for sign extension.
uint64_t msbt = (imm >> 20) & 1;
- // Real value is imm multipled by 4k. Value now has 33-bit information.
+ // Real value is imm multiplied by 4k. Value now has 33-bit information.
int64_t value = imm << 12;
// Sign extend to 64-bit by repeating msbt 31 (64-33) times and merge it
// with value.
0x14000000, /* b <label> */
};
- // ST_E_835769 has the same stub template as ST_E_843419.
- const static Insntype* ST_E_835769_INSNS = ST_E_843419_INSNS;
+ // ST_E_835769 has the same stub template as ST_E_843419
+ // but we reproduce the array here so that the sizeof
+ // expressions in install_insn_template will work.
+ const static Insntype ST_E_835769_INSNS[] =
+ {
+ 0x00000000, /* Placeholder for erratum insn. */
+ 0x14000000, /* b <label> */
+ };
#define install_insn_template(T) \
const static Stub_template<big_endian> template_##T = { \
{ this->erratum_address_ = addr; }
// Comparator used to group Erratum_stubs in a set by (obj, shndx,
- // sh_offset). We do not include 'type' in the calculation, becuase there is
+ // sh_offset). We do not include 'type' in the calculation, because there is
// at most one stub type at (obj, shndx, sh_offset).
bool
operator<(const Erratum_stub<size, big_endian>& k) const
const unsigned char* pshdrs, Output_file* of,
typename Sized_relobj_file<size, big_endian>::Views* pviews)
{
- // Call parent to relocate sections.
- Sized_relobj_file<size, big_endian>::do_relocate_sections(symtab, layout,
- pshdrs, of, pviews);
+ // Relocate the section data.
+ this->relocate_section_range(symtab, layout, pshdrs, of, pviews,
+ 1, this->shnum() - 1);
// We do not generate stubs if doing a relocatable link.
if (parameters->options().relocatable())
if (!is_defined_in_discarded_section)
{
typedef Sized_relobj_file<size, big_endian> ObjType;
+ if (psymval->is_section_symbol())
+ symval.set_is_section_symbol();
typename ObjType::Compute_final_local_value_status status =
object->compute_final_local_value(r_sym, psymval, &symval,
relinfo->symtab);
static_cast<Valtype>(val | (immed << doffset)));
}
+ public:
+
// Update selected bits in text.
template<int valsize>
: This::STATUS_OVERFLOW);
}
- public:
-
// Construct a B insn. Note, although we group it here with other relocation
// operation, there is actually no 'relocation' involved here.
static inline void
typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian>
Reloc_section;
- Output_data_got_aarch64<size, big_endian>* got =
- target->got_section(symtab, layout);
unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
// A local STT_GNU_IFUNC symbol may require a PLT entry.
switch (r_type)
{
+ case elfcpp::R_AARCH64_NONE:
+ break;
+
case elfcpp::R_AARCH64_ABS32:
case elfcpp::R_AARCH64_ABS16:
if (parameters->options().output_is_position_independent())
case elfcpp::R_AARCH64_ADR_GOT_PAGE:
case elfcpp::R_AARCH64_LD64_GOT_LO12_NC:
- // This pair of relocations is used to access a specific GOT entry.
+ case elfcpp::R_AARCH64_LD64_GOTPAGE_LO15:
+ // The above relocations are used to access GOT entries.
{
+ Output_data_got_aarch64<size, big_endian>* got =
+ target->got_section(symtab, layout);
bool is_new = false;
// This symbol requires a GOT entry.
if (is_ifunc)
}
break;
+ case elfcpp::R_AARCH64_MOVW_UABS_G0: // 263
+ case elfcpp::R_AARCH64_MOVW_UABS_G0_NC: // 264
+ case elfcpp::R_AARCH64_MOVW_UABS_G1: // 265
+ case elfcpp::R_AARCH64_MOVW_UABS_G1_NC: // 266
+ case elfcpp::R_AARCH64_MOVW_UABS_G2: // 267
+ case elfcpp::R_AARCH64_MOVW_UABS_G2_NC: // 268
+ case elfcpp::R_AARCH64_MOVW_UABS_G3: // 269
+ case elfcpp::R_AARCH64_MOVW_SABS_G0: // 270
+ case elfcpp::R_AARCH64_MOVW_SABS_G1: // 271
+ case elfcpp::R_AARCH64_MOVW_SABS_G2: // 272
+ if (parameters->options().output_is_position_independent())
+ {
+ gold_error(_("%s: unsupported reloc %u in pos independent link."),
+ object->name().c_str(), r_type);
+ }
+ break;
+
case elfcpp::R_AARCH64_LD_PREL_LO19: // 273
case elfcpp::R_AARCH64_ADR_PREL_LO21: // 274
case elfcpp::R_AARCH64_ADR_PREL_PG_HI21: // 275
// Create a GOT entry for the tp-relative offset.
if (!parameters->doing_static_link())
{
+ Output_data_got_aarch64<size, big_endian>* got =
+ target->got_section(symtab, layout);
got->add_local_with_rel(object, r_sym, GOT_TYPE_TLS_OFFSET,
target->rela_dyn_section(layout),
elfcpp::R_AARCH64_TLS_TPREL64);
else if (!object->local_has_got_offset(r_sym,
GOT_TYPE_TLS_OFFSET))
{
+ Output_data_got_aarch64<size, big_endian>* got =
+ target->got_section(symtab, layout);
got->add_local(object, r_sym, GOT_TYPE_TLS_OFFSET);
unsigned int got_offset =
object->local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET);
}
gold_assert(tlsopt == tls::TLSOPT_NONE);
+ Output_data_got_aarch64<size, big_endian>* got =
+ target->got_section(symtab, layout);
got->add_local_pair_with_rel(object,r_sym, data_shndx,
GOT_TYPE_TLS_PAIR,
target->rela_dyn_section(layout),
switch (r_type)
{
+ case elfcpp::R_AARCH64_NONE:
+ break;
+
case elfcpp::R_AARCH64_ABS16:
case elfcpp::R_AARCH64_ABS32:
case elfcpp::R_AARCH64_ABS64:
}
break;
+ case elfcpp::R_AARCH64_MOVW_UABS_G0: // 263
+ case elfcpp::R_AARCH64_MOVW_UABS_G0_NC: // 264
+ case elfcpp::R_AARCH64_MOVW_UABS_G1: // 265
+ case elfcpp::R_AARCH64_MOVW_UABS_G1_NC: // 266
+ case elfcpp::R_AARCH64_MOVW_UABS_G2: // 267
+ case elfcpp::R_AARCH64_MOVW_UABS_G2_NC: // 268
+ case elfcpp::R_AARCH64_MOVW_UABS_G3: // 269
+ case elfcpp::R_AARCH64_MOVW_SABS_G0: // 270
+ case elfcpp::R_AARCH64_MOVW_SABS_G1: // 271
+ case elfcpp::R_AARCH64_MOVW_SABS_G2: // 272
+ if (parameters->options().output_is_position_independent())
+ {
+ gold_error(_("%s: unsupported reloc %u in pos independent link."),
+ object->name().c_str(), r_type);
+ }
+ break;
+
case elfcpp::R_AARCH64_LD_PREL_LO19: // 273
case elfcpp::R_AARCH64_ADR_PREL_LO21: // 274
case elfcpp::R_AARCH64_ADR_PREL_PG_HI21: // 275
case elfcpp::R_AARCH64_ADR_GOT_PAGE:
case elfcpp::R_AARCH64_LD64_GOT_LO12_NC:
+ case elfcpp::R_AARCH64_LD64_GOTPAGE_LO15:
{
- // This pair of relocations is used to access a specific GOT entry.
+ // The above relocations are used to access GOT entries.
// Note a GOT entry is an *address* to a symbol.
// The symbol requires a GOT entry
Output_data_got_aarch64<size, big_endian>* got =
view, object, psymval, addend, address, reloc_property);
break;
+ case elfcpp::R_AARCH64_MOVW_UABS_G0:
+ case elfcpp::R_AARCH64_MOVW_UABS_G0_NC:
+ case elfcpp::R_AARCH64_MOVW_UABS_G1:
+ case elfcpp::R_AARCH64_MOVW_UABS_G1_NC:
+ case elfcpp::R_AARCH64_MOVW_UABS_G2:
+ case elfcpp::R_AARCH64_MOVW_UABS_G2_NC:
+ case elfcpp::R_AARCH64_MOVW_UABS_G3:
+ reloc_status = Reloc::template rela_general<32>(
+ view, object, psymval, addend, reloc_property);
+ break;
+ case elfcpp::R_AARCH64_MOVW_SABS_G0:
+ case elfcpp::R_AARCH64_MOVW_SABS_G1:
+ case elfcpp::R_AARCH64_MOVW_SABS_G2:
+ reloc_status = Reloc::movnz(view, psymval->value(object, addend),
+ reloc_property);
+ break;
+
case elfcpp::R_AARCH64_LD_PREL_LO19:
reloc_status = Reloc::template pcrela_general<32>(
view, object, psymval, addend, address, reloc_property);
// Return false to stop further processing this reloc.
return false;
}
- // Fallthrough
+ // Fall through.
case elfcpp::R_AARCH64_JUMP26:
if (Reloc::maybe_apply_stub(r_type, relinfo, rela, view, address,
gsym, psymval, object,
target->stub_group_size_))
break;
- // Fallthrough
+ // Fall through.
case elfcpp::R_AARCH64_TSTBR14:
case elfcpp::R_AARCH64_CONDBR19:
reloc_status = Reloc::template pcrela_general<32>(
view, value, addend, reloc_property);
break;
+ case elfcpp::R_AARCH64_LD64_GOTPAGE_LO15:
+ {
+ gold_assert(have_got_offset);
+ value = target->got_->address() + got_base + got_offset + addend -
+ Reloc::Page(target->got_->address() + got_base);
+ if ((value & 7) != 0)
+ reloc_status = Reloc::STATUS_OVERFLOW;
+ else
+ reloc_status = Reloc::template reloc_common<32>(
+ view, value, reloc_property);
+ break;
+ }
+
case elfcpp::R_AARCH64_TLSGD_ADR_PAGE21:
case elfcpp::R_AARCH64_TLSGD_ADD_LO12_NC:
case elfcpp::R_AARCH64_TLSLD_ADR_PAGE21:
typename elfcpp::Swap<32,big_endian>::Valtype insn2)
{
uint32_t rt;
- uint32_t rt2;
+ uint32_t rt2 = 0;
uint32_t rn;
uint32_t rm;
uint32_t ra;
}
if (do_report)
{
- gold_info(_("Erratum 843419 found and fixed at \"%s\", "
- "section %d, offset 0x%08x."),
- relobj->name().c_str(), shndx,
- (unsigned int)(span_start + offset));
unsigned int erratum_insn_offset =
span_start + offset + insn_offset;
Address erratum_address =