/* Used to pass x86-specific linker options from ld to bfd. */
struct elf_linker_x86_params
{
- /* TRUE if BND prefix in PLT entries is always generated. */
- unsigned int bndplt: 1;
-
/* TRUE if IBT-enabled PLT entries should be generated. */
unsigned int ibtplt: 1;
break;
case R_X86_64_PLT32:
- case R_X86_64_PLT32_BND:
/* This symbol requires a procedure linkage table entry. We
actually build the entry in adjust_dynamic_symbol,
because this might be a case of linking PIC code which is
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
- case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_64:
pointer:
}
}
}
- else if (r_type != R_X86_64_PC32_BND
- && r_type != R_X86_64_PC64)
+ else if (r_type != R_X86_64_PC64)
{
/* At run-time, R_X86_64_64 can be resolved for both
x86-64 and x32. But R_X86_64_32 and R_X86_64_32S
}
/* FALLTHROUGH */
case R_X86_64_PC32:
- case R_X86_64_PC32_BND:
case R_X86_64_PC64:
case R_X86_64_PLT32:
- case R_X86_64_PLT32_BND:
goto do_relocation;
}
}
break;
case R_X86_64_PLT32:
- case R_X86_64_PLT32_BND:
/* Relocation is to the entry for this symbol in the
procedure linkage table. */
case R_X86_64_PC8:
case R_X86_64_PC16:
case R_X86_64_PC32:
- case R_X86_64_PC32_BND:
/* Don't complain about -fPIC if the symbol is undefined when
building executable unless it is unresolved weak symbol,
references a dynamic definition in PIE or -z nocopyreloc
htab = elf_x86_hash_table (info, bed->target_id);
if (!htab)
abort ();
- if (htab->params->bndplt)
- {
- init_table.lazy_plt = &elf_x86_64_lazy_bnd_plt;
- init_table.non_lazy_plt = &elf_x86_64_non_lazy_bnd_plt;
- }
- else
- {
- init_table.lazy_plt = &elf_x86_64_lazy_plt;
- init_table.non_lazy_plt = &elf_x86_64_non_lazy_plt;
- }
+
+ init_table.lazy_plt = &elf_x86_64_lazy_plt;
+ init_table.non_lazy_plt = &elf_x86_64_non_lazy_plt;
init_table.lazy_ibt_plt = &elf_x32_lazy_ibt_plt;
init_table.non_lazy_ibt_plt = &elf_x32_non_lazy_ibt_plt;
if (!bfd_set_section_alignment (sec, plt_alignment))
goto error_alignment;
}
- else if (htab->params->bndplt && ABI_64_P (dynobj))
- {
- /* Create the second PLT for Intel MPX support. MPX
- PLT is supported only in 64-bit mode and is needed
- only for lazy binding. */
- sec = bfd_make_section_anyway_with_flags (dynobj,
- ".plt.sec",
- pltflags);
- if (sec == NULL)
- info->callbacks->einfo (_("%F%P: failed to create BND PLT section\n"));
-
- if (!bfd_set_section_alignment (sec, non_lazy_plt_alignment))
- goto error_alignment;
- }
htab->plt_second = sec;
}
htab->plt_sframe = sec;
- /* Second PLT is generated for Intel IBT / MPX Support + lazy plt. */
+ /* Second PLT is generated for Intel IBT + lazy plt. */
if (htab->plt_second != NULL)
{
sec = bfd_make_section_anyway_with_flags (dynobj,
((TYPE) == R_X86_64_PC8 \
|| (TYPE) == R_X86_64_PC16 \
|| (TYPE) == R_X86_64_PC32 \
- || (TYPE) == R_X86_64_PC32_BND \
|| (TYPE) == R_X86_64_PC64)
#define I386_PCREL_TYPE_P(TYPE) ((TYPE) == R_386_PC32)
#define X86_PCREL_TYPE_P(IS_X86_64, TYPE) \
((TYPE) == R_X86_64_PC8 \
|| (TYPE) == R_X86_64_PC16 \
|| (TYPE) == R_X86_64_PC32 \
- || (TYPE) == R_X86_64_PC32_BND \
|| (TYPE) == R_X86_64_PC64)
/* This must be the same as sframe_get_hdr_size (sfh). For x86-64, this value
* gold and dwp now support zstd compressed debug sections.
+
* The new option --compress-debug-sections=zstd compresses debug sections with
zstd.
+* Remove support for -z bndplt (MPX prefix instructions).
+
Changes in 1.16:
* Improve warning messages for relocations that refer to discarded sections.
// The -z options.
- DEFINE_bool(bndplt, options::DASH_Z, '\0', false,
- N_("(x86-64 only) Generate a BND PLT for Intel MPX"),
- N_("Generate a regular PLT"));
DEFINE_bool(combreloc, options::DASH_Z, '\0', true,
N_("Sort dynamic relocs"),
N_("Do not sort dynamic relocs"));
static const unsigned char plt_eh_frame_fde[plt_eh_frame_fde_size];
};
-class Output_data_plt_x86_64_bnd : public Output_data_plt_x86_64<64>
-{
- public:
- Output_data_plt_x86_64_bnd(Layout* layout,
- Output_data_got<64, false>* got,
- Output_data_got_plt_x86_64* got_plt,
- Output_data_space* got_irelative)
- : Output_data_plt_x86_64<64>(layout, plt_entry_size,
- got, got_plt, got_irelative),
- aplt_offset_(0)
- { }
-
- Output_data_plt_x86_64_bnd(Layout* layout,
- Output_data_got<64, false>* got,
- Output_data_got_plt_x86_64* got_plt,
- Output_data_space* got_irelative,
- unsigned int plt_count)
- : Output_data_plt_x86_64<64>(layout, plt_entry_size,
- got, got_plt, got_irelative,
- plt_count),
- aplt_offset_(0)
- { }
-
- protected:
- virtual unsigned int
- do_get_plt_entry_size() const
- { return plt_entry_size; }
-
- // Return the PLT address to use for a global symbol.
- uint64_t
- do_address_for_global(const Symbol*);
-
- // Return the PLT address to use for a local symbol.
- uint64_t
- do_address_for_local(const Relobj*, unsigned int symndx);
-
- virtual void
- do_add_eh_frame(Layout* layout)
- {
- layout->add_eh_frame_for_plt(this,
- this->plt_eh_frame_cie,
- this->plt_eh_frame_cie_size,
- plt_eh_frame_fde,
- plt_eh_frame_fde_size);
- }
-
- virtual void
- do_fill_first_plt_entry(unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_addr,
- elfcpp::Elf_types<64>::Elf_Addr plt_addr);
-
- virtual unsigned int
- do_fill_plt_entry(unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_address,
- elfcpp::Elf_types<64>::Elf_Addr plt_address,
- unsigned int got_offset,
- unsigned int plt_offset,
- unsigned int plt_index);
-
- virtual void
- do_fill_tlsdesc_entry(unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_address,
- elfcpp::Elf_types<64>::Elf_Addr plt_address,
- elfcpp::Elf_types<64>::Elf_Addr got_base,
- unsigned int tlsdesc_got_offset,
- unsigned int plt_offset);
-
- void
- fill_aplt_entry(unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_address,
- elfcpp::Elf_types<64>::Elf_Addr plt_address,
- unsigned int got_offset,
- unsigned int plt_offset,
- unsigned int plt_index);
-
- private:
- // Set the final size.
- void
- set_final_data_size();
-
- // Write out the BND PLT data.
- void
- do_write(Output_file*);
-
- // Offset of the Additional PLT (if using -z bndplt).
- unsigned int aplt_offset_;
-
- // The size of an entry in the PLT.
- static const int plt_entry_size = 16;
-
- // The size of an entry in the additional PLT.
- static const int aplt_entry_size = 8;
-
- // The first entry in the PLT.
- // From the AMD64 ABI: "Unlike Intel386 ABI, this ABI uses the same
- // procedure linkage table for both programs and shared objects."
- static const unsigned char first_plt_entry[plt_entry_size];
-
- // Other entries in the PLT for an executable.
- static const unsigned char plt_entry[plt_entry_size];
-
- // Entries in the additional PLT.
- static const unsigned char aplt_entry[aplt_entry_size];
-
- // The reserved TLSDESC entry in the PLT for an executable.
- static const unsigned char tlsdesc_plt_entry[plt_entry_size];
-
- // The .eh_frame unwind information for the PLT.
- static const int plt_eh_frame_fde_size = 32;
- static const unsigned char plt_eh_frame_fde[plt_eh_frame_fde_size];
-};
-
// We use this PLT when Indirect Branch Tracking (IBT) is enabled.
template <int size>
void
set_final_data_size();
- // Write out the BND PLT data.
+ // Write out the PLT data.
void
do_write(Output_file*);
+ 12)));
}
-// Return the APLT address to use for a global symbol (for -z bndplt).
-
-uint64_t
-Output_data_plt_x86_64_bnd::do_address_for_global(const Symbol* gsym)
-{
- uint64_t offset = this->aplt_offset_;
- // Convert the PLT offset into an APLT offset.
- unsigned int plt_offset = gsym->plt_offset();
- if (gsym->type() == elfcpp::STT_GNU_IFUNC
- && gsym->can_use_relative_reloc(false))
- offset += this->regular_count() * aplt_entry_size;
- else
- plt_offset -= plt_entry_size;
- plt_offset = plt_offset / (plt_entry_size / aplt_entry_size);
- return this->address() + offset + plt_offset;
-}
-
-// Return the PLT address to use for a local symbol. These are always
-// IRELATIVE relocs.
-
-uint64_t
-Output_data_plt_x86_64_bnd::do_address_for_local(const Relobj* object,
- unsigned int r_sym)
-{
- // Convert the PLT offset into an APLT offset.
- const Sized_relobj_file<64, false>* sized_relobj =
- static_cast<const Sized_relobj_file<64, false>*>(object);
- const Symbol_value<64>* psymval = sized_relobj->local_symbol(r_sym);
- unsigned int plt_offset = ((object->local_plt_offset(r_sym)
- - (psymval->is_ifunc_symbol()
- ? 0 : plt_entry_size))
- / (plt_entry_size / aplt_entry_size));
- return (this->address()
- + this->aplt_offset_
- + this->regular_count() * aplt_entry_size
- + plt_offset);
-}
-
-// Set the final size.
-void
-Output_data_plt_x86_64_bnd::set_final_data_size()
-{
- // Number of regular and IFUNC PLT entries.
- unsigned int count = this->entry_count();
- // Count the first entry and the TLSDESC entry, if present.
- unsigned int extra = this->has_tlsdesc_entry() ? 2 : 1;
- unsigned int plt_size = (count + extra) * plt_entry_size;
- // Offset of the APLT.
- this->aplt_offset_ = plt_size;
- // Size of the APLT.
- plt_size += count * aplt_entry_size;
- this->set_data_size(plt_size);
-}
-
-// The first entry in the BND PLT.
-
-const unsigned char
-Output_data_plt_x86_64_bnd::first_plt_entry[plt_entry_size] =
-{
- // From AMD64 ABI Draft 0.98, page 76
- 0xff, 0x35, // pushq contents of memory address
- 0, 0, 0, 0, // replaced with address of .got + 8
- 0xf2, 0xff, 0x25, // bnd jmp indirect
- 0, 0, 0, 0, // replaced with address of .got + 16
- 0x0f, 0x1f, 0x00 // nop
-};
-
-void
-Output_data_plt_x86_64_bnd::do_fill_first_plt_entry(
- unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_address,
- elfcpp::Elf_types<64>::Elf_Addr plt_address)
-{
- memcpy(pov, first_plt_entry, plt_entry_size);
- // We do a jmp relative to the PC at the end of this instruction.
- elfcpp::Swap_unaligned<32, false>::writeval(pov + 2,
- (got_address + 8
- - (plt_address + 6)));
- elfcpp::Swap<32, false>::writeval(pov + 9,
- (got_address + 16
- - (plt_address + 13)));
-}
-
-// Subsequent entries in the BND PLT.
-
-const unsigned char
-Output_data_plt_x86_64_bnd::plt_entry[plt_entry_size] =
-{
- // From AMD64 ABI Draft 0.99.8, page 139
- 0x68, // pushq immediate
- 0, 0, 0, 0, // replaced with offset into relocation table
- 0xf2, 0xe9, // bnd jmpq relative
- 0, 0, 0, 0, // replaced with offset to start of .plt
- 0x0f, 0x1f, 0x44, 0, 0 // nop
-};
-
-// Entries in the BND Additional PLT.
-
-const unsigned char
-Output_data_plt_x86_64_bnd::aplt_entry[aplt_entry_size] =
-{
- // From AMD64 ABI Draft 0.99.8, page 139
- 0xf2, 0xff, 0x25, // bnd jmpq indirect
- 0, 0, 0, 0, // replaced with address of symbol in .got
- 0x90, // nop
-};
-
-unsigned int
-Output_data_plt_x86_64_bnd::do_fill_plt_entry(
- unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr,
- elfcpp::Elf_types<64>::Elf_Addr,
- unsigned int,
- unsigned int plt_offset,
- unsigned int plt_index)
-{
- memcpy(pov, plt_entry, plt_entry_size);
- elfcpp::Swap_unaligned<32, false>::writeval(pov + 1, plt_index);
- elfcpp::Swap<32, false>::writeval(pov + 7, -(plt_offset + 11));
- return 0;
-}
-
-void
-Output_data_plt_x86_64_bnd::fill_aplt_entry(
- unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_address,
- elfcpp::Elf_types<64>::Elf_Addr plt_address,
- unsigned int got_offset,
- unsigned int plt_offset,
- unsigned int plt_index)
-{
- // Check PC-relative offset overflow in PLT entry.
- uint64_t plt_got_pcrel_offset = (got_address + got_offset
- - (plt_address + plt_offset + 7));
- if (Bits<32>::has_overflow(plt_got_pcrel_offset))
- gold_error(_("PC-relative offset overflow in APLT entry %d"),
- plt_index + 1);
-
- memcpy(pov, aplt_entry, aplt_entry_size);
- elfcpp::Swap_unaligned<32, false>::writeval(pov + 3, plt_got_pcrel_offset);
-}
-
-// The reserved TLSDESC entry in the PLT for an executable.
-
-const unsigned char
-Output_data_plt_x86_64_bnd::tlsdesc_plt_entry[plt_entry_size] =
-{
- // From Alexandre Oliva, "Thread-Local Storage Descriptors for IA32
- // and AMD64/EM64T", Version 0.9.4 (2005-10-10).
- 0xff, 0x35, // pushq x(%rip)
- 0, 0, 0, 0, // replaced with address of linkmap GOT entry (at PLTGOT + 8)
- 0xf2, 0xff, 0x25, // jmpq *y(%rip)
- 0, 0, 0, 0, // replaced with offset of reserved TLSDESC_GOT entry
- 0x0f, 0x1f, 0 // nop
-};
-
-void
-Output_data_plt_x86_64_bnd::do_fill_tlsdesc_entry(
- unsigned char* pov,
- elfcpp::Elf_types<64>::Elf_Addr got_address,
- elfcpp::Elf_types<64>::Elf_Addr plt_address,
- elfcpp::Elf_types<64>::Elf_Addr got_base,
- unsigned int tlsdesc_got_offset,
- unsigned int plt_offset)
-{
- memcpy(pov, tlsdesc_plt_entry, plt_entry_size);
- elfcpp::Swap_unaligned<32, false>::writeval(pov + 2,
- (got_address + 8
- - (plt_address + plt_offset
- + 6)));
- elfcpp::Swap_unaligned<32, false>::writeval(pov + 9,
- (got_base
- + tlsdesc_got_offset
- - (plt_address + plt_offset
- + 13)));
-}
-
// Return the APLT address to use for a global symbol (for IBT).
template<int size>
elfcpp::DW_CFA_nop
};
-// The .eh_frame unwind information for the BND PLT.
-const unsigned char
-Output_data_plt_x86_64_bnd::plt_eh_frame_fde[plt_eh_frame_fde_size] =
-{
- 0, 0, 0, 0, // Replaced with offset to .plt.
- 0, 0, 0, 0, // Replaced with size of .plt.
- 0, // Augmentation size.
- elfcpp::DW_CFA_def_cfa_offset, 16, // DW_CFA_def_cfa_offset: 16.
- elfcpp::DW_CFA_advance_loc + 6, // Advance 6 to __PLT__ + 6.
- elfcpp::DW_CFA_def_cfa_offset, 24, // DW_CFA_def_cfa_offset: 24.
- elfcpp::DW_CFA_advance_loc + 10, // Advance 10 to __PLT__ + 16.
- elfcpp::DW_CFA_def_cfa_expression, // DW_CFA_def_cfa_expression.
- 11, // Block length.
- elfcpp::DW_OP_breg7, 8, // Push %rsp + 8.
- elfcpp::DW_OP_breg16, 0, // Push %rip.
- elfcpp::DW_OP_lit15, // Push 0xf.
- elfcpp::DW_OP_and, // & (%rip & 0xf).
- elfcpp::DW_OP_lit5, // Push 5.
- elfcpp::DW_OP_ge, // >= ((%rip & 0xf) >= 5)
- elfcpp::DW_OP_lit3, // Push 3.
- elfcpp::DW_OP_shl, // << (((%rip & 0xf) >= 5) << 3)
- elfcpp::DW_OP_plus, // + ((((%rip&0xf)>=5)<<3)+%rsp+8
- elfcpp::DW_CFA_nop, // Align to 32 bytes.
- elfcpp::DW_CFA_nop,
- elfcpp::DW_CFA_nop,
- elfcpp::DW_CFA_nop
-};
-
-// The .eh_frame unwind information for the BND PLT.
+// The .eh_frame unwind information for the PLT.
template<int size>
const unsigned char
Output_data_plt_x86_64_ibt<size>::plt_eh_frame_fde[plt_eh_frame_fde_size] =
of->write_output_view(got_file_offset, got_size, got_view);
}
-// Write out the BND PLT.
-
-void
-Output_data_plt_x86_64_bnd::do_write(Output_file* of)
-{
- const off_t offset = this->offset();
- const section_size_type oview_size =
- convert_to_section_size_type(this->data_size());
- unsigned char* const oview = of->get_output_view(offset, oview_size);
-
- Output_data_got<64, false>* got = this->got();
- Output_data_got_plt_x86_64* got_plt = this->got_plt();
- Output_data_space* got_irelative = this->got_irelative();
-
- const off_t got_file_offset = got_plt->offset();
- gold_assert(parameters->incremental_update()
- || (got_file_offset + got_plt->data_size()
- == got_irelative->offset()));
- const section_size_type got_size =
- convert_to_section_size_type(got_plt->data_size()
- + got_irelative->data_size());
- unsigned char* const got_view = of->get_output_view(got_file_offset,
- got_size);
-
- unsigned char* pov = oview;
-
- // The base address of the .plt section.
- elfcpp::Elf_types<64>::Elf_Addr plt_address = this->address();
- // The base address of the .got section.
- elfcpp::Elf_types<64>::Elf_Addr got_base = got->address();
- // The base address of the PLT portion of the .got section,
- // which is where the GOT pointer will point, and where the
- // three reserved GOT entries are located.
- elfcpp::Elf_types<64>::Elf_Addr got_address = got_plt->address();
-
- this->fill_first_plt_entry(pov, got_address, plt_address);
- pov += plt_entry_size;
-
- // The first three entries in the GOT are reserved, and are written
- // by Output_data_got_plt_x86_64::do_write.
- unsigned char* got_pov = got_view + 24;
-
- unsigned int plt_offset = plt_entry_size;
- unsigned int got_offset = 24;
- const unsigned int count = this->entry_count();
- for (unsigned int plt_index = 0;
- plt_index < count;
- ++plt_index,
- pov += plt_entry_size,
- got_pov += 8,
- plt_offset += plt_entry_size,
- got_offset += 8)
- {
- // Set and adjust the PLT entry itself.
- unsigned int lazy_offset = this->fill_plt_entry(pov,
- got_address, plt_address,
- got_offset, plt_offset,
- plt_index);
-
- // Set the entry in the GOT.
- elfcpp::Swap<64, false>::writeval(got_pov,
- plt_address + plt_offset + lazy_offset);
- }
-
- if (this->has_tlsdesc_entry())
- {
- // Set and adjust the reserved TLSDESC PLT entry.
- unsigned int tlsdesc_got_offset = this->get_tlsdesc_got_offset();
- this->fill_tlsdesc_entry(pov, got_address, plt_address, got_base,
- tlsdesc_got_offset, plt_offset);
- pov += this->get_plt_entry_size();
- plt_offset += plt_entry_size;
- }
-
- // Write the additional PLT.
- got_offset = 24;
- for (unsigned int plt_index = 0;
- plt_index < count;
- ++plt_index,
- pov += aplt_entry_size,
- plt_offset += aplt_entry_size,
- got_offset += 8)
- {
- // Set and adjust the APLT entry.
- this->fill_aplt_entry(pov, got_address, plt_address, got_offset,
- plt_offset, plt_index);
- }
-
- gold_assert(static_cast<section_size_type>(pov - oview) == oview_size);
- gold_assert(static_cast<section_size_type>(got_pov - got_view) == got_size);
-
- of->write_output_view(offset, oview_size, oview);
- of->write_output_view(got_file_offset, got_size, got_view);
-}
-
// Write out the IBT PLT.
template<int size>
if (this->feature_1_ & elfcpp::GNU_PROPERTY_X86_FEATURE_1_IBT)
return new Output_data_plt_x86_64_ibt<64>(layout, got, got_plt,
got_irelative);
- else if (parameters->options().bndplt())
- return new Output_data_plt_x86_64_bnd(layout, got, got_plt,
- got_irelative);
else
return new Output_data_plt_x86_64_standard<64>(layout, got, got_plt,
got_irelative);
if (this->feature_1_ & elfcpp::GNU_PROPERTY_X86_FEATURE_1_IBT)
return new Output_data_plt_x86_64_ibt<64>(layout, got, got_plt,
got_irelative, plt_count);
- else if (parameters->options().bndplt())
- return new Output_data_plt_x86_64_bnd(layout, got, got_plt,
- got_irelative, plt_count);
else
return new Output_data_plt_x86_64_standard<64>(layout, got, got_plt,
got_irelative,
case elfcpp::R_X86_64_PC64:
case elfcpp::R_X86_64_PC32:
- case elfcpp::R_X86_64_PC32_BND:
case elfcpp::R_X86_64_PC16:
case elfcpp::R_X86_64_PC8:
case elfcpp::R_X86_64_GOTOFF64:
return Symbol::RELATIVE_REF;
case elfcpp::R_X86_64_PLT32:
- case elfcpp::R_X86_64_PLT32_BND:
case elfcpp::R_X86_64_PLTOFF64:
return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF;
// glibc supports these reloc types, but they can overflow.
case elfcpp::R_X86_64_PC32:
- case elfcpp::R_X86_64_PC32_BND:
// A PC relative reference is OK against a local symbol or if
// the symbol is defined locally.
if (gsym == NULL
case elfcpp::R_X86_64_PC32:
r_name = "R_X86_64_PC32";
break;
- case elfcpp::R_X86_64_PC32_BND:
- r_name = "R_X86_64_PC32_BND";
- break;
default:
gold_unreachable();
break;
case elfcpp::R_X86_64_PC64:
case elfcpp::R_X86_64_PC32:
- case elfcpp::R_X86_64_PC32_BND:
case elfcpp::R_X86_64_PC16:
case elfcpp::R_X86_64_PC8:
break;
case elfcpp::R_X86_64_PLT32:
- case elfcpp::R_X86_64_PLT32_BND:
// Since we know this is a local symbol, we can handle this as a
// PC32 reloc.
break;
case elfcpp::R_X86_64_PC64:
case elfcpp::R_X86_64_PC32:
- case elfcpp::R_X86_64_PC32_BND:
case elfcpp::R_X86_64_PC16:
case elfcpp::R_X86_64_PC8:
{
break;
case elfcpp::R_X86_64_PLT32:
- case elfcpp::R_X86_64_PLT32_BND:
// If the symbol is fully resolved, this is just a PC32 reloc.
// Otherwise we need a PLT entry.
if (gsym->final_value_is_known())
if ((r_type != elfcpp::R_X86_64_PLT32
&& r_type != elfcpp::R_X86_64_GOTPCREL
&& r_type != elfcpp::R_X86_64_GOTPCRELX
- && r_type != elfcpp::R_X86_64_PLT32_BND
- && r_type != elfcpp::R_X86_64_PC32_BND
&& r_type != elfcpp::R_X86_64_PC32)
|| gsym == NULL
|| strcmp(gsym->name(), "__tls_get_addr") != 0)
break;
case elfcpp::R_X86_64_PC32:
- case elfcpp::R_X86_64_PC32_BND:
rstatus = Reloc_funcs::pcrela32_check(view, object, psymval, addend,
address);
break;
break;
case elfcpp::R_X86_64_PLT32:
- case elfcpp::R_X86_64_PLT32_BND:
gold_assert(gsym == NULL
|| gsym->has_plt_offset()
|| gsym->final_value_is_known()
that selects the default compression algorithm
for --enable-compressed-debug-sections.
+* Remove support for -z bndplt (MPX prefix instructions).
+
Changes in 2.39:
* The ELF linker will now generate a warning message if the stack is made
case "$EMULATION_NAME" in
*64*)
LIBPATH_SUFFIX=64
- PARSE_AND_LIST_OPTIONS_BNDPLT='
- fprintf (file, _("\
- -z bndplt Always generate BND prefix in PLT entries\n"));
-'
- PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT='
- else if (strcmp (optarg, "bndplt") == 0)
- params.bndplt = true;
-'
- PARSE_AND_LIST_OPTIONS="$PARSE_AND_LIST_OPTIONS $PARSE_AND_LIST_OPTIONS_BNDPLT"
- PARSE_AND_LIST_ARGS_CASE_Z="$PARSE_AND_LIST_ARGS_CASE_Z $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT"
;;
esac
;;
The recognized keywords are:
@table @samp
-@item bndplt
-Always generate BND prefix in PLT entries. Supported for Linux/x86_64.
-
@item call-nop=prefix-addr
@itemx call-nop=suffix-nop
@itemx call-nop=prefix-@var{byte}
+++ /dev/null
-#source: bnd-branch-1.s -mx86-used-note=no
-#as: --64
-#ld: -z now -shared -melf_x86_64 --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw
-
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+230 <foo2@plt-0x10>:
- +[a-f0-9]+: ff 35 82 01 20 00 push 0x200182\(%rip\) # 2003b8 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: ff 25 84 01 20 00 jmp \*0x200184\(%rip\) # 2003c0 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 40 00 nopl 0x0\(%rax\)
-
-0+240 <foo2@plt>:
- +[a-f0-9]+: ff 25 82 01 20 00 jmp \*0x200182\(%rip\) # 2003c8 <foo2>
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: e9 e0 ff ff ff jmp 230 <foo2@plt-0x10>
-
-0+250 <foo3@plt>:
- +[a-f0-9]+: ff 25 7a 01 20 00 jmp \*0x20017a\(%rip\) # 2003d0 <foo3>
- +[a-f0-9]+: 68 01 00 00 00 push \$0x1
- +[a-f0-9]+: e9 d0 ff ff ff jmp 230 <foo2@plt-0x10>
-
-0+260 <foo1@plt>:
- +[a-f0-9]+: ff 25 72 01 20 00 jmp \*0x200172\(%rip\) # 2003d8 <foo1>
- +[a-f0-9]+: 68 02 00 00 00 push \$0x2
- +[a-f0-9]+: e9 c0 ff ff ff jmp 230 <foo2@plt-0x10>
-
-0+270 <foo4@plt>:
- +[a-f0-9]+: ff 25 6a 01 20 00 jmp \*0x20016a\(%rip\) # 2003e0 <foo4>
- +[a-f0-9]+: 68 03 00 00 00 push \$0x3
- +[a-f0-9]+: e9 b0 ff ff ff jmp 230 <foo2@plt-0x10>
-
-Disassembly of section .text:
-
-0+280 <_start>:
- +[a-f0-9]+: f2 e9 da ff ff ff bnd jmp 260 <foo1@plt>
- +[a-f0-9]+: e8 b5 ff ff ff call 240 <foo2@plt>
- +[a-f0-9]+: e9 c0 ff ff ff jmp 250 <foo3@plt>
- +[a-f0-9]+: e8 db ff ff ff call 270 <foo4@plt>
- +[a-f0-9]+: f2 e8 b5 ff ff ff bnd call 250 <foo3@plt>
- +[a-f0-9]+: e9 d0 ff ff ff jmp 270 <foo4@plt>
-#pass
+++ /dev/null
-#as: --64
-#ld: -shared -melf_x86_64
-#objdump: -dw
-
-.*: +file format .*
-
-
-#...
-Disassembly of section .text:
-
-#...
-[a-f0-9]+ <_start>:
-[ ]*[a-f0-9]+: f2 e9 [a-f0-9]+ ff ff ff bnd jmp [a-f0-9]+ <foo1@plt>
-[ ]*[a-f0-9]+: e8 [a-f0-9]+ ff ff ff call [a-f0-9]+ <foo2@plt>
-[ ]*[a-f0-9]+: e9 [a-f0-9]+ ff ff ff jmp [a-f0-9]+ <foo3@plt>
-[ ]*[a-f0-9]+: e8 [a-f0-9]+ ff ff ff call [a-f0-9]+ <foo4@plt>
-[ ]*[a-f0-9]+: f2 e8 [a-f0-9]+ ff ff ff bnd call [a-f0-9]+ <foo3@plt>
-[ ]*[a-f0-9]+: e9 [a-f0-9]+ ff ff ff jmp [a-f0-9]+ <foo4@plt>
-#pass
+++ /dev/null
- .text
- .globl _start
-_start:
-bnd jmp foo1@plt
- call foo2@plt
- jmp foo3@plt
- call foo4@plt
-bnd call foo3@plt
- jmp foo4@plt
+++ /dev/null
-#source: bnd-ifunc-1.s
-#as: --64 -madd-bnd-prefix -mx86-used-note=no
-#ld: -z now -shared -melf_x86_64 -z bndplt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw
-
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+170 <.plt>:
- +[a-f0-9]+: ff 35 4a 01 20 00 push 0x20014a\(%rip\) # 2002c0 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 4b 01 20 00 bnd jmp \*0x20014b\(%rip\) # 2002c8 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 170 <\*ABS\*\+0x198@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+190 <\*ABS\*\+0x198@plt>:
- +[a-f0-9]+: f2 ff 25 39 01 20 00 bnd jmp \*0x200139\(%rip\) # 2002d0 <_GLOBAL_OFFSET_TABLE_\+0x18>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+198 <foo>:
- +[a-f0-9]+: f2 c3 bnd ret
-
-0+19a <bar>:
- +[a-f0-9]+: f2 e8 f0 ff ff ff bnd call 190 <\*ABS\*\+0x198@plt>
- +[a-f0-9]+: f2 c3 bnd ret
-#pass
+++ /dev/null
-#as: --64 -madd-bnd-prefix
-#ld: -shared -melf_x86_64 -z bndplt --hash-style=sysv
-#objdump: -dw
-
-#...
-[ ]*[a-f0-9]+: f2 e8 f0 ff ff ff bnd call [a-f0-9]+ <\*ABS\*\+0x[a-f0-9]+@plt>
-#pass
+++ /dev/null
- .type foo, %gnu_indirect_function
- .global __GI_foo
- .hidden __GI_foo
- .set __GI_foo, foo
- .text
-.globl foo
- .type foo, @function
-foo:
- ret
- .size foo, .-foo
-.globl bar
- .type bar, @function
-bar:
- call __GI_foo@PLT
- ret
- .size bar, .-bar
+++ /dev/null
-#source: bnd-ifunc-2.s
-#as: --64 -madd-bnd-prefix -mx86-used-note=no
-#ld: -z now -shared -melf_x86_64 -z bndplt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw
-
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+240 <.plt>:
- +[a-f0-9]+: ff 35 9a 01 20 00 push 0x20019a\(%rip\) # 2003e0 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 9b 01 20 00 bnd jmp \*0x20019b\(%rip\) # 2003e8 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 03 00 00 00 push \$0x3
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 d5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
- +[a-f0-9]+: 68 01 00 00 00 push \$0x1
- +[a-f0-9]+: f2 e9 c5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
- +[a-f0-9]+: 68 02 00 00 00 push \$0x2
- +[a-f0-9]+: f2 e9 b5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+290 <\*ABS\*\+0x2bc@plt>:
- +[a-f0-9]+: f2 ff 25 59 01 20 00 bnd jmp \*0x200159\(%rip\) # 2003f0 <_GLOBAL_OFFSET_TABLE_\+0x18>
- +[a-f0-9]+: 90 nop
-
-0+298 <func1@plt>:
- +[a-f0-9]+: f2 ff 25 59 01 20 00 bnd jmp \*0x200159\(%rip\) # 2003f8 <func1>
- +[a-f0-9]+: 90 nop
-
-0+2a0 <func2@plt>:
- +[a-f0-9]+: f2 ff 25 59 01 20 00 bnd jmp \*0x200159\(%rip\) # 200400 <func2>
- +[a-f0-9]+: 90 nop
-
-0+2a8 <\*ABS\*\+0x2b0@plt>:
- +[a-f0-9]+: f2 ff 25 59 01 20 00 bnd jmp \*0x200159\(%rip\) # 200408 <_GLOBAL_OFFSET_TABLE_\+0x30>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+2b0 <resolve1>:
- +[a-f0-9]+: f2 e8 e2 ff ff ff bnd call 298 <func1@plt>
-
-0+2b6 <g1>:
- +[a-f0-9]+: f2 e9 ec ff ff ff bnd jmp 2a8 <\*ABS\*\+0x2b0@plt>
-
-0+2bc <resolve2>:
- +[a-f0-9]+: f2 e8 de ff ff ff bnd call 2a0 <func2@plt>
-
-0+2c2 <g2>:
- +[a-f0-9]+: f2 e9 c8 ff ff ff bnd jmp 290 <\*ABS\*\+0x2bc@plt>
-#pass
+++ /dev/null
-#as: --64 -madd-bnd-prefix -mx86-used-note=no
-#ld: -shared -melf_x86_64 -z bndplt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw
-
-#...
-0+240 <.plt>:
-[ ]*[a-f0-9]+: ff 35 7a 01 20 00 push 0x20017a\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: f2 ff 25 7b 01 20 00 bnd jmp \*0x20017b\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
-[ ]*[a-f0-9]+: 68 03 00 00 00 push \$0x3
-[ ]*[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-[ ]*[a-f0-9]+: 68 00 00 00 00 push \$0x0
-[ ]*[a-f0-9]+: f2 e9 d5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-[ ]*[a-f0-9]+: 68 01 00 00 00 push \$0x1
-[ ]*[a-f0-9]+: f2 e9 c5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-[ ]*[a-f0-9]+: 68 02 00 00 00 push \$0x2
-[ ]*[a-f0-9]+: f2 e9 b5 ff ff ff bnd jmp 240 <\*ABS\*\+0x2bc@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+290 <\*ABS\*\+0x2bc@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 39 01 20 00 bnd jmp \*0x200139\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-0+298 <func1@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 39 01 20 00 bnd jmp \*0x200139\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-0+2a0 <func2@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 39 01 20 00 bnd jmp \*0x200139\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-0+2a8 <\*ABS\*\+0x2b0@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 39 01 20 00 bnd jmp \*0x200139\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+2b0 <resolve1>:
-[ ]*[a-f0-9]+: f2 e8 e2 ff ff ff bnd call 298 <func1@plt>
-
-0+2b6 <g1>:
-[ ]*[a-f0-9]+: f2 e9 ec ff ff ff bnd jmp 2a8 <\*ABS\*\+0x2b0@plt>
-
-0+2bc <resolve2>:
-[ ]*[a-f0-9]+: f2 e8 de ff ff ff bnd call 2a0 <func2@plt>
-
-0+2c2 <g2>:
-[ ]*[a-f0-9]+: f2 e9 c8 ff ff ff bnd jmp 290 <\*ABS\*\+0x2bc@plt>
-#pass
+++ /dev/null
- .text
- .globl fct1
- .type fct1, @gnu_indirect_function
- .set fct1,resolve1
- .hidden int_fct1
- .globl int_fct1
- .set int_fct1,fct1
- .type resolve1, @function
-resolve1:
- call func1@PLT
- .globl g1
- .type g1, @function
-g1:
- jmp int_fct1@PLT
-
- .globl fct2
- .type fct2, @gnu_indirect_function
- .set fct2,resolve2
- .hidden int_fct2
- .globl int_fct2
- .set int_fct2,fct2
- .type resolve2, @function
-resolve2:
- call func2@PLT
- .globl g2
- .type g2, @function
-g2:
- jmp int_fct2@PLT
+++ /dev/null
-#source: bnd-branch-1.s
-#as: --64 -mx86-used-note=no
-#ld: -z now -shared -melf_x86_64 -z bndplt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw
-
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+230 <.plt>:
- +[a-f0-9]+: ff 35 a2 01 20 00 push 0x2001a2\(%rip\) # 2003d8 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 a3 01 20 00 bnd jmp \*0x2001a3\(%rip\) # 2003e0 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
- +[a-f0-9]+: 68 01 00 00 00 push \$0x1
- +[a-f0-9]+: f2 e9 d5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
- +[a-f0-9]+: 68 02 00 00 00 push \$0x2
- +[a-f0-9]+: f2 e9 c5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
- +[a-f0-9]+: 68 03 00 00 00 push \$0x3
- +[a-f0-9]+: f2 e9 b5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+280 <foo2@plt>:
- +[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 2003e8 <foo2>
- +[a-f0-9]+: 90 nop
-
-0+288 <foo3@plt>:
- +[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 2003f0 <foo3>
- +[a-f0-9]+: 90 nop
-
-0+290 <foo1@plt>:
- +[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 2003f8 <foo1>
- +[a-f0-9]+: 90 nop
-
-0+298 <foo4@plt>:
- +[a-f0-9]+: f2 ff 25 61 01 20 00 bnd jmp \*0x200161\(%rip\) # 200400 <foo4>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+2a0 <_start>:
- +[a-f0-9]+: f2 e9 ea ff ff ff bnd jmp 290 <foo1@plt>
- +[a-f0-9]+: e8 d5 ff ff ff call 280 <foo2@plt>
- +[a-f0-9]+: e9 d8 ff ff ff jmp 288 <foo3@plt>
- +[a-f0-9]+: e8 e3 ff ff ff call 298 <foo4@plt>
- +[a-f0-9]+: f2 e8 cd ff ff ff bnd call 288 <foo3@plt>
- +[a-f0-9]+: e9 d8 ff ff ff jmp 298 <foo4@plt>
-#pass
+++ /dev/null
-#source: bnd-branch-1.s
-#as: --64 -mx86-used-note=no
-#ld: -shared -melf_x86_64 -z bndplt --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw
-
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+230 <.plt>:
-[ ]*[a-f0-9]+: ff 35 82 01 20 00 push 0x200182\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: f2 ff 25 83 01 20 00 bnd jmp \*0x200183\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
-[ ]*[a-f0-9]+: 68 00 00 00 00 push \$0x0
-[ ]*[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-[ ]*[a-f0-9]+: 68 01 00 00 00 push \$0x1
-[ ]*[a-f0-9]+: f2 e9 d5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-[ ]*[a-f0-9]+: 68 02 00 00 00 push \$0x2
-[ ]*[a-f0-9]+: f2 e9 c5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-[ ]*[a-f0-9]+: 68 03 00 00 00 push \$0x3
-[ ]*[a-f0-9]+: f2 e9 b5 ff ff ff bnd jmp 230 <foo2@plt-0x50>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+280 <foo2@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 41 01 20 00 bnd jmp \*0x200141\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-0+288 <foo3@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 41 01 20 00 bnd jmp \*0x200141\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-0+290 <foo1@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 41 01 20 00 bnd jmp \*0x200141\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-0+298 <foo4@plt>:
-[ ]*[a-f0-9]+: f2 ff 25 41 01 20 00 bnd jmp \*0x200141\(%rip\)[ ]*(#.*)?
-[ ]*[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+2a0 <_start>:
-[ ]*[a-f0-9]+: f2 e9 ea ff ff ff bnd jmp 290 <foo1@plt>
-[ ]*[a-f0-9]+: e8 d5 ff ff ff call 280 <foo2@plt>
-[ ]*[a-f0-9]+: e9 d8 ff ff ff jmp 288 <foo3@plt>
-[ ]*[a-f0-9]+: e8 e3 ff ff ff call 298 <foo4@plt>
-[ ]*[a-f0-9]+: f2 e8 cd ff ff ff bnd call 288 <foo3@plt>
-[ ]*[a-f0-9]+: e9 d8 ff ff ff jmp 298 <foo4@plt>
-#pass
+++ /dev/null
-# Expect script for ELF MPX tests.
-# Copyright (C) 2013-2022 Free Software Foundation, Inc.
-#
-# This file is part of the GNU Binutils.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
-# MA 02110-1301, USA.
-#
-
-# The following tests require running the executable generated by ld,
-# or enough of a build environment to create a fully linked executable.
-# This is not commonly available when testing a cross-built linker.
-if ![isnative] {
- return
-}
-
-# Only on Linux for now.
-if ![istarget "x86_64-*-linux*"] {
- return
-}
-
-# Check to see if the C compiler works
-if { ![check_compiler_available] } {
- return
-}
-
-run_cc_link_tests [list \
- [list \
- "Build libmpx1a.a" \
- "" \
- "-Wa,-madd-bnd-prefix -fPIC $PLT_CFLAGS" \
- {mpx1a.c} \
- {{readelf {-r --wide} mpx1a.rd}} \
- "libmpx1a.a" \
- ] \
- [list \
- "Build libmpx1b.a" \
- "" \
- "" \
- {mpx1b.c} \
- {} \
- "libmpx1b.a" \
- ] \
- [list \
- "Build libmpx1c.a" \
- "" \
- "-Wa,-madd-bnd-prefix" \
- {mpx1c.c} \
- {{readelf {-r --wide} mpx1c.rd}} \
- "libmpx1c.a" \
- ] \
- [list \
- "Build libmpx2a.a" \
- "" \
- "-Wa,-madd-bnd-prefix -fPIE $PLT_CFLAGS" \
- {mpx2a.c} \
- {{readelf {-r --wide} mpx2a.rd}} \
- "libmpx2a.a" \
- ] \
- [list \
- "Build libmpx2b.a" \
- "" \
- "-fPIE" \
- {mpx2b.c} \
- {} \
- "libmpx2b.a" \
- ] \
- [list \
- "Build libmpx2c.a" \
- "" \
- "-Wa,-madd-bnd-prefix -fPIE $PLT_CFLAGS" \
- {mpx2c.c} \
- {{readelf {-r --wide} mpx2c.rd}} \
- "libmpx2c.a" \
- ] \
-]
-
-set run_tests {
- {"Run mpx1"
- "tmpdir/mpx1a.o tmpdir/mpx1b.o tmpdir/mpx1c.o" ""
- {dummy.s} "mpx1" "mpx1.out"}
- {"Run mpx1 with -static"
- "tmpdir/mpx1a.o tmpdir/mpx1b.o tmpdir/mpx1c.o -static" ""
- {dummy.s} "mpx1static" "mpx1.out"}
- {"Run mpx2"
- "tmpdir/mpx2a.o tmpdir/mpx2b.o tmpdir/mpx2c.o -pie" ""
- {dummy.s} "mpx2" "mpx2.out"}
- {"Run mpx2 with -static"
- "tmpdir/mpx2a.o tmpdir/mpx2b.o tmpdir/mpx2c.o -static" ""
- {dummy.s} "mpx2static" "mpx2.out"}
-}
-
-run_ld_link_tests {
- {"Build libcall.so"
- "-m elf_x86_64 -shared -z bndplt" ""
- "--64" {mpx3b.s} {} "libcall.so"}
- {"Build mpx3"
- "-m elf_x86_64 -z bndplt tmpdir/libcall.so" ""
- "--64" {mpx3a.s} {{objdump -dw mpx3.dd}} "mpx3"}
- {"Build libcall1.so"
- "-m elf_x86_64 -shared -z bndplt" ""
- "--64" {mpx4b.s} {} "libcall1.so"}
- {"Build mpx4"
- "-m elf_x86_64 -z bndplt --hash-style=sysv tmpdir/libcall1.so \
- -z max-page-size=0x200000 -z noseparate-code" ""
- "--64 -mx86-used-note=no" {mpx4a.s} {{objdump -dw mpx4.dd}} "mpx4"}
- {"Build mpx3 (-z now)"
- "-z now -m elf_x86_64 -z bndplt --hash-style=sysv tmpdir/libcall.so \
- -z max-page-size=0x200000 -z noseparate-code" ""
- "--64 -mx86-used-note=no" {mpx3a.s} {{objdump -dw mpx3n.dd}} "mpx3n"}
- {"Build mpx4 (-z now)"
- "-z now -m elf_x86_64 -z bndplt --hash-style=sysv tmpdir/libcall1.so \
- -z max-page-size=0x200000 -z noseparate-code" ""
- "--64 -mx86-used-note=no" {mpx4a.s} {{objdump -dw mpx4n.dd}} "mpx4n"}
-}
-
-run_ld_link_exec_tests $run_tests
-
-run_dump_test "bnd-branch-1"
-run_dump_test "bnd-ifunc-1"
-run_dump_test "bnd-ifunc-2"
-run_dump_test "bnd-plt-1"
-run_dump_test "bnd-branch-1-now"
-run_dump_test "bnd-ifunc-1-now"
-run_dump_test "bnd-ifunc-2-now"
-run_dump_test "bnd-plt-1-now"
+++ /dev/null
-foo1
-foo2
+++ /dev/null
-#include <stdio.h>
-
-void
-foo1 (void)
-{
- printf ("foo1\n");
-}
+++ /dev/null
-#...
-[0-9a-f ]+R_X86_64_PLT32 +0+ +.*
-#...
+++ /dev/null
-#include <stdio.h>
-
-void
-foo2 (void)
-{
- printf ("foo2\n");
-}
+++ /dev/null
-extern void foo1 (void);
-extern void foo2 (void);
-
-int
-main (void)
-{
- foo1 ();
- foo2 ();
- return 0;
-}
+++ /dev/null
-#...
-[0-9a-f ]+R_X86_64_PLT32 +0+ +.*
-#...
+++ /dev/null
-foo1
-foo2
+++ /dev/null
-#include <stdio.h>
-
-void
-foo1 (void)
-{
- printf ("foo1\n");
-}
+++ /dev/null
-#...
-[0-9a-f ]+R_X86_64_PLT32 +0+ +.*
-#...
+++ /dev/null
-#include <stdio.h>
-
-void
-foo2 (void)
-{
- printf ("foo2\n");
-}
+++ /dev/null
-extern void foo1 (void);
-extern void foo2 (void);
-
-int
-main (void)
-{
- foo1 ();
- foo2 ();
- return 0;
-}
+++ /dev/null
-#...
-[0-9a-f ]+R_X86_64_PLT32 +0+ +.*
-#...
+++ /dev/null
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+[a-f0-9]+ <.plt>:
-[ ]*[a-f0-9]+: ff ([0-9a-f]{2} ){5} push 0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <_GLOBAL_OFFSET_TABLE_\+0x8>
-[ ]*[a-f0-9]+: f2 ff ([0-9a-f]{2} ){5} bnd jmp \*0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <_GLOBAL_OFFSET_TABLE_\+0x10>
-[ ]*[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
-[ ]*[a-f0-9]+: 68 00 00 00 00 push \$0x0
-[ ]*[a-f0-9]+: f2 e9 ([0-9a-f]{2} ){4} bnd jmp [a-f0-9]+ <call1@plt-0x20>
-[ ]*[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+[a-f0-9]+ <call1@plt>:
-[ ]*[a-f0-9]+: f2 ff ([0-9a-f]{2} ){5} bnd jmp \*0x[a-f0-9]+\(%rip\) # [a-f0-9]+ <call1>
-[ ]*[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+[a-f0-9]+ <_start>:
-[ ]*[a-f0-9]+: bf ([0-9a-f]{2} ){4} mov \$0x[a-f0-9]+,%edi
-[ ]*[a-f0-9]+: f2 ff d7 bnd call \*%rdi
-[ ]*[a-f0-9]+: 48 8b ([0-9a-f]{2} ){5} mov 0x[a-f0-9]+\(%rip\),%rdi # [a-f0-9]+ <call2>
-[ ]*[a-f0-9]+: f2 ff d7 bnd call \*%rdi
-[ ]*[a-f0-9]+: c3 ret *
-#pass
+++ /dev/null
- .text
- .globl _start
- .type _start, @function
-_start:
- movl $call1, %edi
- bnd call *%rdi
- movq func(%rip), %rdi
- bnd call *%rdi
- ret
- .size _start, .-_start
- .globl func
- .data
- .type func, @object
- .size func, 8
-func:
- .quad call2
+++ /dev/null
- .text
- .globl call1
- .type call1, @function
-call1:
- ret
- .size call1, .-call1
- .globl call2
- .type call2, @function
-call2:
- ret
- .size call2, .-call2
+++ /dev/null
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+400220 <.plt>:
- +[a-f0-9]+: ff 35 a2 01 20 00 push 0x2001a2\(%rip\) # 6003c8 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 a3 01 20 00 bnd jmp \*0x2001a3\(%rip\) # 6003d0 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 400220 <call1@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+400240 <call1@plt>:
- +[a-f0-9]+: f2 ff 25 91 01 20 00 bnd jmp \*0x200191\(%rip\) # 6003d8 <call1>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+400248 <_start>:
- +[a-f0-9]+: bf 40 02 40 00 mov \$0x400240,%edi
- +[a-f0-9]+: f2 ff d7 bnd call \*%rdi
- +[a-f0-9]+: 48 8b 3d 89 01 20 00 mov 0x200189\(%rip\),%rdi # 6003e0 <call2>
- +[a-f0-9]+: f2 ff d7 bnd call \*%rdi
- +[a-f0-9]+: c3 ret *
-#pass
+++ /dev/null
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+4001f0 <.plt>:
- +[a-f0-9]+: ff 35 42 01 20 00 push 0x200142\(%rip\) # 600338 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 43 01 20 00 bnd jmp \*0x200143\(%rip\) # 600340 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 4001f0 <call1@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+400210 <call1@plt>:
- +[a-f0-9]+: f2 ff 25 31 01 20 00 bnd jmp \*0x200131\(%rip\) # 600348 <call1>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+400218 <_start>:
- +[a-f0-9]+: bf 10 02 40 00 mov \$0x400210,%edi
- +[a-f0-9]+: f2 ff d7 bnd call \*%rdi
+++ /dev/null
-.text
- .globl _start
- .type _start, @function
-_start:
- movl $call1, %edi
- bnd call *%rdi
+++ /dev/null
-.text
- .globl call1
- .type call1, @function
-call1:
- ret
+++ /dev/null
-.*: +file format .*
-
-
-Disassembly of section .plt:
-
-0+4001f0 <.plt>:
- +[a-f0-9]+: ff 35 62 01 20 00 push 0x200162\(%rip\) # 600358 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 63 01 20 00 bnd jmp \*0x200163\(%rip\) # 600360 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 4001f0 <call1@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+400210 <call1@plt>:
- +[a-f0-9]+: f2 ff 25 51 01 20 00 bnd jmp \*0x200151\(%rip\) # 600368 <call1>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+400218 <_start>:
- +[a-f0-9]+: bf 10 02 40 00 mov \$0x400210,%edi
- +[a-f0-9]+: f2 ff d7 bnd call \*%rdi
-#pass
+++ /dev/null
- .text
- .globl main
- .type main, @function
-main:
-.L2:
- leaq .L2(%rip), %rax
- movabsq $_GLOBAL_OFFSET_TABLE_-.L2, %r11
- movabsq $bar@PLTOFF, %rdx
- pushq %r15
- addq %r11, %rax
- movq %rax, %r15
- addq %rax, %rdx
- call *%rdx
- xorl %eax, %eax
- popq %r15
- ret
- .size main, .-main
- .section .note.GNU-stack
+++ /dev/null
- .section .rodata.str1.1,"aMS",@progbits,1
-.LC0:
- .string "PASS\n"
- .text
- .globl bar
- .type bar, @function
-bar:
-.L2:
- leaq .L2(%rip), %rdx
- movabsq $_GLOBAL_OFFSET_TABLE_-.L2, %r11
- movabsq $.LC0@GOTOFF, %rax
- pushq %r15
- movabsq $printf@PLTOFF, %rcx
- addq %r11, %rdx
- popq %r15
- leaq (%rdx,%rax), %rdi
- addq %rdx, %rcx
- xorl %eax, %eax
- jmp *%rcx
- .size bar, .-bar
- .section .note.GNU-stack,"",@progbits
+++ /dev/null
-#name: PR ld/21038 (.plt.got, -z now)
-#source: pr21038a.s
-#as: --64
-#ld: -z now -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw -Wf
-
-.*: +file format .*
-
-Contents of the .eh_frame section:
-
-
-0+ 0000000000000014 00000000 CIE
- Version: 1
- Augmentation: "zR"
- Code alignment factor: 1
- Data alignment factor: -8
- Return address column: 16
- Augmentation data: 1b
- DW_CFA_def_cfa: r7 \(rsp\) ofs 8
- DW_CFA_offset: r16 \(rip\) at cfa-8
- DW_CFA_nop
- DW_CFA_nop
-
-0+18 0000000000000014 0000001c FDE cie=00000000 pc=00000000000001c8..00000000000001d4
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001b0..00000000000001c0
- DW_CFA_def_cfa_offset: 16
- DW_CFA_advance_loc: 6 to 00000000000001b6
- DW_CFA_def_cfa_offset: 24
- DW_CFA_advance_loc: 10 to 00000000000001c0
- DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+58 0000000000000010 0000005c FDE cie=00000000 pc=00000000000001c0..00000000000001c8
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-
-Disassembly of section .plt:
-
-0+1b0 <.plt>:
- +[a-f0-9]+: ff 35 32 fe 3f 00 push 0x3ffe32\(%rip\) # 3fffe8 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 33 fe 3f 00 bnd jmp \*0x3ffe33\(%rip\) # 3ffff0 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
-
-Disassembly of section .plt.got:
-
-0+1c0 <func@plt>:
- +[a-f0-9]+: f2 ff 25 31 fe 3f 00 bnd jmp \*0x3ffe31\(%rip\) # 3ffff8 <func>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+1c8 <foo>:
- +[a-f0-9]+: e8 f3 ff ff ff call 1c0 <func@plt>
- +[a-f0-9]+: 48 8b 05 24 fe 3f 00 mov 0x3ffe24\(%rip\),%rax # 3ffff8 <func>
-#pass
+++ /dev/null
-#name: PR ld/21038 (.plt.got)
-#as: --64
-#ld: -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw -Wf
-
-.*: +file format .*
-
-Contents of the .eh_frame section:
-
-
-0+ 0000000000000014 00000000 CIE
- Version: 1
- Augmentation: "zR"
- Code alignment factor: 1
- Data alignment factor: -8
- Return address column: 16
- Augmentation data: 1b
- DW_CFA_def_cfa: r7 \(rsp\) ofs 8
- DW_CFA_offset: r16 \(rip\) at cfa-8
- DW_CFA_nop
- DW_CFA_nop
-
-0+18 0000000000000014 0000001c FDE cie=00000000 pc=00000000000001c8..00000000000001d4
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001b0..00000000000001c0
- DW_CFA_def_cfa_offset: 16
- DW_CFA_advance_loc: 6 to 00000000000001b6
- DW_CFA_def_cfa_offset: 24
- DW_CFA_advance_loc: 10 to 00000000000001c0
- DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+58 0000000000000010 0000005c FDE cie=00000000 pc=00000000000001c0..00000000000001c8
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-
-Disassembly of section .plt:
-
-0+1b0 <.plt>:
- +[a-f0-9]+: ff 35 3a fe 3f 00 push 0x3ffe3a\(%rip\) # 3ffff0 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 3b fe 3f 00 bnd jmp \*0x3ffe3b\(%rip\) # 3ffff8 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
-
-Disassembly of section .plt.got:
-
-0+1c0 <func@plt>:
- +[a-f0-9]+: f2 ff 25 19 fe 3f 00 bnd jmp \*0x3ffe19\(%rip\) # 3fffe0 <func>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+1c8 <foo>:
- +[a-f0-9]+: e8 f3 ff ff ff call 1c0 <func@plt>
- +[a-f0-9]+: 48 8b 05 0c fe 3f 00 mov 0x3ffe0c\(%rip\),%rax # 3fffe0 <func>
-#pass
+++ /dev/null
- .text
- .globl foo
- .type foo, @function
-foo:
- .cfi_startproc
- call func@plt
- movq func@GOTPCREL(%rip), %rax
- .cfi_endproc
+++ /dev/null
-#name: PR ld/21038 (.plt.sec, -z now)
-#source: pr21038b.s
-#as: --64
-#ld: -z now -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw -Wf
-
-.*: +file format .*
-
-Contents of the .eh_frame section:
-
-
-0+ 0000000000000014 00000000 CIE
- Version: 1
- Augmentation: "zR"
- Code alignment factor: 1
- Data alignment factor: -8
- Return address column: 16
- Augmentation data: 1b
- DW_CFA_def_cfa: r7 \(rsp\) ofs 8
- DW_CFA_offset: r16 \(rip\) at cfa-8
- DW_CFA_nop
- DW_CFA_nop
-
-0+18 0000000000000014 0000001c FDE cie=00000000 pc=00000000000001d8..00000000000001dd
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001b0..00000000000001d0
- DW_CFA_def_cfa_offset: 16
- DW_CFA_advance_loc: 6 to 00000000000001b6
- DW_CFA_def_cfa_offset: 24
- DW_CFA_advance_loc: 10 to 00000000000001c0
- DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+58 0000000000000010 0000005c FDE cie=00000000 pc=00000000000001d0..00000000000001d8
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-
-Disassembly of section .plt:
-
-0+1b0 <.plt>:
- +[a-f0-9]+: ff 35 32 fe 3f 00 push 0x3ffe32\(%rip\) # 3fffe8 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 33 fe 3f 00 bnd jmp \*0x3ffe33\(%rip\) # 3ffff0 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 1b0 <func@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+1d0 <func@plt>:
- +[a-f0-9]+: f2 ff 25 21 fe 3f 00 bnd jmp \*0x3ffe21\(%rip\) # 3ffff8 <func>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+1d8 <foo>:
- +[a-f0-9]+: e8 f3 ff ff ff call 1d0 <func@plt>
-#pass
+++ /dev/null
-#name: PR ld/21038 (.plt.sec)
-#as: --64
-#ld: -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code
-#objdump: -dw -Wf
-
-.*: +file format .*
-
-Contents of the .eh_frame section:
-
-
-0+ 0000000000000014 00000000 CIE
- Version: 1
- Augmentation: "zR"
- Code alignment factor: 1
- Data alignment factor: -8
- Return address column: 16
- Augmentation data: 1b
- DW_CFA_def_cfa: r7 \(rsp\) ofs 8
- DW_CFA_offset: r16 \(rip\) at cfa-8
- DW_CFA_nop
- DW_CFA_nop
-
-0+18 0000000000000014 0000001c FDE cie=00000000 pc=00000000000001d8..00000000000001dd
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001b0..00000000000001d0
- DW_CFA_def_cfa_offset: 16
- DW_CFA_advance_loc: 6 to 00000000000001b6
- DW_CFA_def_cfa_offset: 24
- DW_CFA_advance_loc: 10 to 00000000000001c0
- DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+58 0000000000000010 0000005c FDE cie=00000000 pc=00000000000001d0..00000000000001d8
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-
-Disassembly of section .plt:
-
-0+1b0 <.plt>:
- +[a-f0-9]+: ff 35 3a fe 3f 00 push 0x3ffe3a\(%rip\) # 3ffff0 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 3b fe 3f 00 bnd jmp \*0x3ffe3b\(%rip\) # 3ffff8 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 1b0 <func@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.sec:
-
-0+1d0 <func@plt>:
- +[a-f0-9]+: f2 ff 25 29 fe 3f 00 bnd jmp \*0x3ffe29\(%rip\) # 400000 <func>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+1d8 <foo>:
- +[a-f0-9]+: e8 f3 ff ff ff call 1d0 <func@plt>
-#pass
+++ /dev/null
- .text
- .globl foo
- .type foo, @function
-foo:
- .cfi_startproc
- call func@plt
- .cfi_endproc
+++ /dev/null
-#name: PR ld/21038 (.plt.got and .plt.sec, -z now)
-#source: pr21038c.s
-#as: --64
-#ld: -z now -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw -Wf
-
-.*: +file format .*
-
-Contents of the .eh_frame section:
-
-
-0+ 0000000000000014 00000000 CIE
- Version: 1
- Augmentation: "zR"
- Code alignment factor: 1
- Data alignment factor: -8
- Return address column: 16
- Augmentation data: 1b
- DW_CFA_def_cfa: r7 \(rsp\) ofs 8
- DW_CFA_offset: r16 \(rip\) at cfa-8
- DW_CFA_nop
- DW_CFA_nop
-
-0+18 0000000000000014 0000001c FDE cie=00000000 pc=0000000000000220..0000000000000231
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001f0..0000000000000210
- DW_CFA_def_cfa_offset: 16
- DW_CFA_advance_loc: 6 to 00000000000001f6
- DW_CFA_def_cfa_offset: 24
- DW_CFA_advance_loc: 10 to 0000000000000200
- DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+58 0000000000000014 0000005c FDE cie=00000000 pc=0000000000000210..0000000000000218
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+70 0000000000000010 00000074 FDE cie=00000000 pc=0000000000000218..0000000000000220
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-
-Disassembly of section .plt:
-
-0+1f0 <.plt>:
- +[a-f0-9]+: ff 35 ea fd 3f 00 push 0x3ffdea\(%rip\) # 3fffe0 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 eb fd 3f 00 bnd jmp \*0x3ffdeb\(%rip\) # 3fffe8 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 1f0 <func1@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.got:
-
-0+210 <func1@plt>:
- +[a-f0-9]+: f2 ff 25 e1 fd 3f 00 bnd jmp \*0x3ffde1\(%rip\) # 3ffff8 <func1>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .plt.sec:
-
-0+218 <func2@plt>:
- +[a-f0-9]+: f2 ff 25 d1 fd 3f 00 bnd jmp \*0x3ffdd1\(%rip\) # 3ffff0 <func2>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+220 <foo>:
- +[a-f0-9]+: e8 eb ff ff ff call 210 <func1@plt>
- +[a-f0-9]+: e8 ee ff ff ff call 218 <func2@plt>
- +[a-f0-9]+: 48 8b 05 c7 fd 3f 00 mov 0x3ffdc7\(%rip\),%rax # 3ffff8 <func1>
-#pass
+++ /dev/null
-#name: PR ld/21038 (.plt.got and .plt.sec)
-#as: --64
-#ld: -z bndplt -melf_x86_64 -shared -z relro --ld-generated-unwind-info --hash-style=sysv -z max-page-size=0x200000 -z noseparate-code $NO_DT_RELR_LDFLAGS
-#objdump: -dw -Wf
-
-.*: +file format .*
-
-Contents of the .eh_frame section:
-
-
-0+ 0000000000000014 00000000 CIE
- Version: 1
- Augmentation: "zR"
- Code alignment factor: 1
- Data alignment factor: -8
- Return address column: 16
- Augmentation data: 1b
- DW_CFA_def_cfa: r7 \(rsp\) ofs 8
- DW_CFA_offset: r16 \(rip\) at cfa-8
- DW_CFA_nop
- DW_CFA_nop
-
-0+18 0000000000000014 0000001c FDE cie=00000000 pc=0000000000000220..0000000000000231
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+30 0000000000000024 00000034 FDE cie=00000000 pc=00000000000001f0..0000000000000210
- DW_CFA_def_cfa_offset: 16
- DW_CFA_advance_loc: 6 to 00000000000001f6
- DW_CFA_def_cfa_offset: 24
- DW_CFA_advance_loc: 10 to 0000000000000200
- DW_CFA_def_cfa_expression \(DW_OP_breg7 \(rsp\): 8; DW_OP_breg16 \(rip\): 0; DW_OP_lit15; DW_OP_and; DW_OP_lit5; DW_OP_ge; DW_OP_lit3; DW_OP_shl; DW_OP_plus\)
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+58 0000000000000014 0000005c FDE cie=00000000 pc=0000000000000210..0000000000000218
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-0+70 0000000000000010 00000074 FDE cie=00000000 pc=0000000000000218..0000000000000220
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-
-
-Disassembly of section .plt:
-
-0+1f0 <.plt>:
- +[a-f0-9]+: ff 35 fa fd 3f 00 push 0x3ffdfa\(%rip\) # 3ffff0 <_GLOBAL_OFFSET_TABLE_\+0x8>
- +[a-f0-9]+: f2 ff 25 fb fd 3f 00 bnd jmp \*0x3ffdfb\(%rip\) # 3ffff8 <_GLOBAL_OFFSET_TABLE_\+0x10>
- +[a-f0-9]+: 0f 1f 00 nopl \(%rax\)
- +[a-f0-9]+: 68 00 00 00 00 push \$0x0
- +[a-f0-9]+: f2 e9 e5 ff ff ff bnd jmp 1f0 <func1@plt-0x20>
- +[a-f0-9]+: 0f 1f 44 00 00 nopl 0x0\(%rax,%rax,1\)
-
-Disassembly of section .plt.got:
-
-0+210 <func1@plt>:
- +[a-f0-9]+: f2 ff 25 c9 fd 3f 00 bnd jmp \*0x3ffdc9\(%rip\) # 3fffe0 <func1>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .plt.sec:
-
-0+218 <func2@plt>:
- +[a-f0-9]+: f2 ff 25 e1 fd 3f 00 bnd jmp \*0x3ffde1\(%rip\) # 400000 <func2>
- +[a-f0-9]+: 90 nop
-
-Disassembly of section .text:
-
-0+220 <foo>:
- +[a-f0-9]+: e8 eb ff ff ff call 210 <func1@plt>
- +[a-f0-9]+: e8 ee ff ff ff call 218 <func2@plt>
- +[a-f0-9]+: 48 8b 05 af fd 3f 00 mov 0x3ffdaf\(%rip\),%rax # 3fffe0 <func1>
-#pass
+++ /dev/null
- .text
- .globl foo
- .type foo, @function
-foo:
- .cfi_startproc
- call func1@plt
- call func2@plt
- movq func1@GOTPCREL(%rip), %rax
- .cfi_endproc
]
}
- if { [istarget "x86_64-*-linux*"] \
- && ![istarget "x86_64-*-linux*-gnux32"]} {
-
- run_cc_link_tests [list \
- [list \
- "Build plt-main with -z bndplt" \
- "tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so -Wl,-z,bndplt \
- -Wl,-z,noseparate-code,-z,max-page-size=0x200000" \
- "-Wa,-mx86-used-note=yes $NOCF_PROTECTION_CFLAGS" \
- { plt-main5.c } \
- {{objdump {-drw} plt-main-bnd.dd}} \
- "plt-main-bnd" \
- ] \
- [list \
- "Build plt-main with PIE and -z bndplt" \
- "tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so -pie \
- -Wl,-z,bndplt,-z,noseparate-code \
- -Wl,-z,max-page-size=0x200000" \
- "-fPIC -Wa,-mx86-used-note=yes $NOCF_PROTECTION_CFLAGS" \
- { plt-main5.c } \
- {{objdump {-drw} plt-main-bnd.dd}} \
- "plt-main-pie-bnd" \
- ] \
- [list \
- "Build plt-main with -z bndplt -z now" \
- "tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so -Wl,-z,bndplt \
- -Wl,-z,now,-z,noseparate-code,-z,max-page-size=0x200000" \
- "-Wa,-mx86-used-note=yes $NOCF_PROTECTION_CFLAGS" \
- { plt-main5.c } \
- {{readelf {-SW} plt-main-bnd-now.rd} {objdump {-drw} plt-main-bnd.dd}} \
- "plt-main-bnd-now" \
- ] \
- [list \
- "Build plt-main with PIE and -z bndplt -z now" \
- "tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so -pie \
- -Wl,-z,bndplt,-z,now,-z,noseparate-code \
- -Wl,-z,max-page-size=0x200000" \
- "-fPIC -Wa,-mx86-used-note=yes $NOCF_PROTECTION_CFLAGS" \
- { plt-main5.c } \
- {{readelf {-SW} plt-main-bnd-now.rd} {objdump {-drw} plt-main-bnd.dd}} \
- "plt-main-pie-bnd-now" \
- ] \
- ]
-
- run_ld_link_exec_tests [list \
- [list \
- "Run plt-main with -z bndplt" \
- "-Wl,--no-as-needed,-z,bndplt tmpdir/plt-main1.o \
- tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so" \
- "-Wa,-mx86-used-note=yes" \
- { plt-main5.c } \
- "plt-main-bnd" \
- "plt-main.out" \
- ] \
- [list \
- "Run plt-main with PIE and -z bndplt" \
- "-Wl,--no-as-needed,-z,bndplt -pie tmpdir/plt-main1.o \
- tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so" \
- "-Wa,-mx86-used-note=yes" \
- { plt-main5.c } \
- "plt-main-pie-bnd" \
- "plt-main.out" \
- "-fPIC" \
- ] \
- [list \
- "Run plt-main with -z bndplt -z now" \
- "-Wl,--no-as-needed,-z,bndplt,-z,now tmpdir/plt-main1.o \
- tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so" \
- "-Wa,-mx86-used-note=yes" \
- { plt-main5.c } \
- "plt-main-bnd-now" \
- "plt-main.out" \
- ] \
- [list \
- "Run plt-main with PIE and -z bndplt -z now" \
- "-Wl,--no-as-needed,-z,bndplt,-z,now -pie tmpdir/plt-main1.o \
- tmpdir/plt-main2.o tmpdir/plt-main3.o \
- tmpdir/plt-main4.o tmpdir/libplt-lib.so" \
- "-Wa,-mx86-used-note=yes" \
- { plt-main5.c } \
- "plt-main-pie-bnd-now" \
- "plt-main.out" \
- "-fPIC" \
- ] \
- [list \
- "Run pr20800" \
- "-Wl,-z,now -pie" \
- "-Wa,-mx86-used-note=yes" \
- { pr20800a.S pr20800b.S } \
- "pr20800" \
- "pass.out" \
- ] \
- ]
- if { [check_ifunc_attribute_available] } {
- run_ld_link_exec_tests [list \
- [list \
- "Run pr21481a" \
- "$NOPIE_LDFLAGS -Wl,-z,bndplt" \
- "-Wa,-mx86-used-note=yes" \
- { pr21481a.c pr21481b.S } \
- "pr21481a" \
- "pass.out" \
- "$NOPIE_CFLAGS" \
- ] \
- [list \
- "Run pr21481b" \
- "$NOPIE_LDFLAGS -Wl,-z,bndplt,-z,now" \
- "-Wa,-mx86-used-note=yes" \
- { pr21481a.c pr21481b.S } \
- "pr21481b" \
- "pass.out" \
- "$NOPIE_CFLAGS" \
- ] \
- ]
- }
- }
-
if { [istarget "x86_64-*-linux*"] } {
set pltdump {{objdump {-drw} plt-main-ibt.dd}}
set pltsecdump {{readelf {-SW} plt-main-ibt-now.rd} {objdump {-drw} plt-main-ibt.dd}}
run_dump_test "pltgot-2"
run_dump_test "pr20830a"
run_dump_test "pr20830b"
-run_dump_test "pr21038a"
-run_dump_test "pr21038b"
-run_dump_test "pr21038c"
run_dump_test "pr20830a-now"
run_dump_test "pr20830b-now"
-run_dump_test "pr21038a-now"
-run_dump_test "pr21038b-now"
-run_dump_test "pr21038c-now"
run_dump_test "ibt-plt-1"
run_dump_test "ibt-plt-1-x32"
run_dump_test "ibt-plt-2a"
projects / binutils-gdb.git / commitdiff