// powerpc.cc -- powerpc target support for gold.
-// Copyright (C) 2008-2015 Free Software Foundation, Inc.
+// Copyright (C) 2008-2016 Free Software Foundation, Inc.
// Written by David S. Miller <davem@davemloft.net>
// and David Edelsohn <edelsohn@gnu.org>
void
do_calls_non_split(Relobj* object, unsigned int shndx,
section_offset_type fnoffset, section_size_type fnsize,
+ const unsigned char* prelocs, size_t reloc_count,
unsigned char* view, section_size_type view_size,
std::string* from, std::string* to) const;
const unsigned char* plocal_symbols,
Relocatable_relocs*);
+ // Scan the relocs for --emit-relocs.
+ void
+ emit_relocs_scan(Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_syms,
+ Relocatable_relocs* rr);
+
// Emit relocations for a section.
void
relocate_relocs(const Relocate_info<size, big_endian>*,
Output_section* output_section,
typename elfcpp::Elf_types<size>::Elf_Off
offset_in_output_section,
- const Relocatable_relocs*,
unsigned char*,
Address view_address,
section_size_type,
// Do a relocation. Return false if the caller should not issue
// any warnings about this relocation.
inline bool
- relocate(const Relocate_info<size, big_endian>*, Target_powerpc*,
- Output_section*, size_t relnum,
- const elfcpp::Rela<size, big_endian>&,
- unsigned int r_type, const Sized_symbol<size>*,
- const Symbol_value<size>*,
- unsigned char*,
- typename elfcpp::Elf_types<size>::Elf_Addr,
+ relocate(const Relocate_info<size, big_endian>*, unsigned int,
+ Target_powerpc*, Output_section*, size_t, const unsigned char*,
+ const Sized_symbol<size>*, const Symbol_value<size>*,
+ unsigned char*, typename elfcpp::Elf_types<size>::Elf_Addr,
section_size_type);
};
}
};
- // A class which returns the size required for a relocation type,
- // used while scanning relocs during a relocatable link.
- class Relocatable_size_for_reloc
- {
- public:
- unsigned int
- get_size_for_reloc(unsigned int, Relobj*)
- {
- gold_unreachable();
- return 0;
- }
- };
-
// Optimize the TLS relocation type based on what we know about the
// symbol. IS_FINAL is true if the final address of this symbol is
// known at link time.
private:
typedef Powerpc_relocate_functions<size, big_endian> This;
typedef typename elfcpp::Elf_types<size>::Elf_Addr Address;
+ typedef typename elfcpp::Elf_types<size>::Elf_Swxword SignedAddress;
template<int valsize>
static inline bool
return stat;
}
+ // R_POWERPC_ADDR16_DQ: (Symbol + Addend) & 0xfff0
+ static inline Status
+ addr16_dq(unsigned char* view, Address value, Overflow_check overflow)
+ {
+ Status stat = This::template rela<16,16>(view, 0, 0xfff0, value, overflow);
+ if ((value & 15) != 0)
+ stat = STATUS_OVERFLOW;
+ return stat;
+ }
+
// R_POWERPC_ADDR16_HI: ((Symbol + Addend) >> 16) & 0xffff
static inline void
addr16_hi(unsigned char* view, Address value)
stat = STATUS_OVERFLOW;
return stat;
}
+
+ // R_POWERPC_REL16DX_HA
+ static inline Status
+ addr16dx_ha(unsigned char *view, Address value, Overflow_check overflow)
+ {
+ typedef typename elfcpp::Swap<32, big_endian>::Valtype Valtype;
+ Valtype* wv = reinterpret_cast<Valtype*>(view);
+ Valtype val = elfcpp::Swap<32, big_endian>::readval(wv);
+ value += 0x8000;
+ value = static_cast<SignedAddress>(value) >> 16;
+ val |= (value & 0xffc1) | ((value & 0x3e) << 15);
+ elfcpp::Swap<32, big_endian>::writeval(wv, val);
+ return overflowed<16>(value, overflow);
+ }
};
// Set ABI version for input and output.
symtab_(symtab), layout_(layout),
header_ent_cnt_(size == 32 ? 3 : 1),
header_index_(size == 32 ? 0x2000 : 0)
- { }
+ {
+ if (size == 64)
+ this->set_addralign(256);
+ }
// Override all the Output_data_got methods we use so as to first call
// reserve_ent().
static const uint32_t add_0_11_11 = 0x7c0b5a14;
static const uint32_t add_2_2_11 = 0x7c425a14;
+static const uint32_t add_2_2_12 = 0x7c426214;
static const uint32_t add_3_3_2 = 0x7c631214;
static const uint32_t add_3_3_13 = 0x7c636a14;
static const uint32_t add_11_0_11 = 0x7d605a14;
static const uint32_t ld_2_1 = 0xe8410000;
static const uint32_t ld_2_2 = 0xe8420000;
static const uint32_t ld_2_11 = 0xe84b0000;
+static const uint32_t ld_2_12 = 0xe84c0000;
static const uint32_t ld_11_2 = 0xe9620000;
static const uint32_t ld_11_11 = 0xe96b0000;
static const uint32_t ld_12_2 = 0xe9820000;
static const uint32_t li_0_0 = 0x38000000;
static const uint32_t li_12_0 = 0x39800000;
static const uint32_t lis_0 = 0x3c000000;
+static const uint32_t lis_2 = 0x3c400000;
static const uint32_t lis_11 = 0x3d600000;
static const uint32_t lis_12 = 0x3d800000;
static const uint32_t lvx_0_12_0 = 0x7c0c00ce;
case elfcpp::R_PPC64_TOC16_HA:
case elfcpp::R_PPC64_TOC16_DS:
case elfcpp::R_PPC64_TOC16_LO_DS:
- // Absolute in GOT.
- ref = Symbol::ABSOLUTE_REF;
+ ref = Symbol::RELATIVE_REF;
break;
case elfcpp::R_POWERPC_GOT_TPREL16:
case elfcpp::R_POWERPC_GNU_VTENTRY:
case elfcpp::R_PPC64_TOCSAVE:
case elfcpp::R_POWERPC_TLS:
+ case elfcpp::R_PPC64_ENTRY:
break;
case elfcpp::R_PPC64_TOC:
case elfcpp::R_POWERPC_REL16_LO:
case elfcpp::R_POWERPC_REL16_HI:
case elfcpp::R_POWERPC_REL16_HA:
+ case elfcpp::R_POWERPC_REL16DX_HA:
case elfcpp::R_POWERPC_SECTOFF:
case elfcpp::R_POWERPC_SECTOFF_LO:
case elfcpp::R_POWERPC_SECTOFF_HI:
case elfcpp::R_POWERPC_GNU_VTENTRY:
case elfcpp::R_PPC_LOCAL24PC:
case elfcpp::R_POWERPC_TLS:
+ case elfcpp::R_PPC64_ENTRY:
break;
case elfcpp::R_PPC64_TOC:
case elfcpp::R_POWERPC_REL16_LO:
case elfcpp::R_POWERPC_REL16_HI:
case elfcpp::R_POWERPC_REL16_HA:
+ case elfcpp::R_POWERPC_REL16DX_HA:
case elfcpp::R_POWERPC_SECTOFF:
case elfcpp::R_POWERPC_SECTOFF_LO:
case elfcpp::R_POWERPC_SECTOFF_HI:
const unsigned char* plocal_symbols)
{
typedef Target_powerpc<size, big_endian> Powerpc;
- typedef typename Target_powerpc<size, big_endian>::Scan Scan;
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+
Powerpc_relobj<size, big_endian>* ppc_object
= static_cast<Powerpc_relobj<size, big_endian>*>(object);
if (size == 64)
return;
}
- gold::gc_process_relocs<size, big_endian, Powerpc, elfcpp::SHT_RELA, Scan,
- typename Target_powerpc::Relocatable_size_for_reloc>(
+ gold::gc_process_relocs<size, big_endian, Powerpc, Scan, Classify_reloc>(
symtab,
layout,
this,
unsigned int shndx,
section_offset_type fnoffset,
section_size_type fnsize,
+ const unsigned char* prelocs,
+ size_t reloc_count,
unsigned char* view,
section_size_type view_size,
std::string* from,
{
// warn
Target::do_calls_non_split(object, shndx, fnoffset, fnsize,
- view, view_size, from, to);
+ prelocs, reloc_count, view, view_size,
+ from, to);
return;
}
const unsigned char* plocal_symbols)
{
typedef Target_powerpc<size, big_endian> Powerpc;
- typedef typename Target_powerpc<size, big_endian>::Scan Scan;
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
if (sh_type == elfcpp::SHT_REL)
{
return;
}
- gold::scan_relocs<size, big_endian, Powerpc, elfcpp::SHT_RELA, Scan>(
+ gold::scan_relocs<size, big_endian, Powerpc, Scan, Classify_reloc>(
symtab,
layout,
this,
inline bool
Target_powerpc<size, big_endian>::Relocate::relocate(
const Relocate_info<size, big_endian>* relinfo,
+ unsigned int,
Target_powerpc* target,
Output_section* os,
size_t relnum,
- const elfcpp::Rela<size, big_endian>& rela,
- unsigned int r_type,
+ const unsigned char* preloc,
const Sized_symbol<size>* gsym,
const Symbol_value<size>* psymval,
unsigned char* view,
if (view == NULL)
return true;
+ const elfcpp::Rela<size, big_endian> rela(preloc);
+ unsigned int r_type = elfcpp::elf_r_type<size>(rela.get_r_info());
switch (this->maybe_skip_tls_get_addr_call(r_type, gsym))
{
case Track_tls::NOT_EXPECTED:
typedef Powerpc_relocate_functions<size, big_endian> Reloc;
typedef typename elfcpp::Swap<32, big_endian>::Valtype Insn;
+ typedef typename Reloc_types<elfcpp::SHT_RELA,
+ size, big_endian>::Reloc Reltype;
+ // Offset from start of insn to d-field reloc.
+ const int d_offset = big_endian ? 2 : 0;
+
Powerpc_relobj<size, big_endian>* const object
= static_cast<Powerpc_relobj<size, big_endian>*>(relinfo->object);
Address value = 0;
if (r_type == elfcpp::R_POWERPC_GOT_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO)
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
insn &= (1 << 26) - (1 << 16); // extract rt,ra from addi
if (size == 32)
if (r_type == elfcpp::R_POWERPC_GOT_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO)
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
insn &= (1 << 26) - (1 << 21); // extract rt
if (size == 32)
}
else
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = nop;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_NONE;
if (r_type == elfcpp::R_POWERPC_GOT_TLSLD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_LO)
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
insn &= (1 << 26) - (1 << 21); // extract rt
if (size == 32)
}
else
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = nop;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_NONE;
if (r_type == elfcpp::R_POWERPC_GOT_TPREL16
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_LO)
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
insn &= (1 << 26) - (1 << 21); // extract rt from ld
if (size == 32)
}
else
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = nop;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_NONE;
Insn insn = addi_3_3;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
- view += 2 * big_endian;
+ view += d_offset;
value = psymval->value(object, rela.get_r_addend());
}
this->skip_next_tls_get_addr_call();
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
this->skip_next_tls_get_addr_call();
r_type = elfcpp::R_POWERPC_TPREL16_LO;
- view += 2 * big_endian;
+ view += d_offset;
value = dtp_offset;
}
}
gold_assert(insn != 0);
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
- view += 2 * big_endian;
+ view += d_offset;
value = psymval->value(object, rela.get_r_addend());
}
}
case elfcpp::R_POWERPC_REL16_LO:
case elfcpp::R_POWERPC_REL16_HI:
case elfcpp::R_POWERPC_REL16_HA:
+ case elfcpp::R_POWERPC_REL16DX_HA:
case elfcpp::R_POWERPC_REL14:
case elfcpp::R_POWERPC_REL14_BRTAKEN:
case elfcpp::R_POWERPC_REL14_BRNTAKEN:
case elfcpp::R_PPC64_TOC16_HA:
if (parameters->options().toc_optimize())
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
if ((insn & ((0x3f << 26) | 0x1f << 16))
!= ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)
case elfcpp::R_PPC64_TOC16_LO_DS:
if (parameters->options().toc_optimize())
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
if (!ok_lo_toc_insn(insn))
gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
}
}
break;
+
+ case elfcpp::R_PPC64_ENTRY:
+ value = (target->got_section()->output_section()->address()
+ + object->toc_base_offset());
+ if (value + 0x80008000 <= 0xffffffff
+ && !parameters->options().output_is_position_independent())
+ {
+ Insn* iview = reinterpret_cast<Insn*>(view);
+ Insn insn1 = elfcpp::Swap<32, big_endian>::readval(iview);
+ Insn insn2 = elfcpp::Swap<32, big_endian>::readval(iview + 1);
+
+ if ((insn1 & ~0xfffc) == ld_2_12
+ && insn2 == add_2_2_12)
+ {
+ insn1 = lis_2 + ha(value);
+ elfcpp::Swap<32, big_endian>::writeval(iview, insn1);
+ insn2 = addi_2_2 + l(value);
+ elfcpp::Swap<32, big_endian>::writeval(iview + 1, insn2);
+ return true;
+ }
+ }
+ else
+ {
+ value -= address;
+ if (value + 0x80008000 <= 0xffffffff)
+ {
+ Insn* iview = reinterpret_cast<Insn*>(view);
+ Insn insn1 = elfcpp::Swap<32, big_endian>::readval(iview);
+ Insn insn2 = elfcpp::Swap<32, big_endian>::readval(iview + 1);
+
+ if ((insn1 & ~0xfffc) == ld_2_12
+ && insn2 == add_2_2_12)
+ {
+ insn1 = addis_2_12 + ha(value);
+ elfcpp::Swap<32, big_endian>::writeval(iview, insn1);
+ insn2 = addi_2_2 + l(value);
+ elfcpp::Swap<32, big_endian>::writeval(iview + 1, insn2);
+ return true;
+ }
+ }
+ }
+ break;
+
+ case elfcpp::R_POWERPC_REL16_LO:
+ // If we are generating a non-PIC executable, edit
+ // 0: addis 2,12,.TOC.-0b@ha
+ // addi 2,2,.TOC.-0b@l
+ // used by ELFv2 global entry points to set up r2, to
+ // lis 2,.TOC.@ha
+ // addi 2,2,.TOC.@l
+ // if .TOC. is in range. */
+ if (value + address - 4 + 0x80008000 <= 0xffffffff
+ && relnum != 0
+ && preloc != NULL
+ && target->abiversion() >= 2
+ && !parameters->options().output_is_position_independent()
+ && gsym != NULL
+ && strcmp(gsym->name(), ".TOC.") == 0)
+ {
+ const int reloc_size
+ = Reloc_types<elfcpp::SHT_RELA, size, big_endian>::reloc_size;
+ Reltype prev_rela(preloc - reloc_size);
+ if ((prev_rela.get_r_info()
+ == elfcpp::elf_r_info<size>(r_sym,
+ elfcpp::R_POWERPC_REL16_HA))
+ && prev_rela.get_r_offset() + 4 == rela.get_r_offset()
+ && prev_rela.get_r_addend() + 4 == rela.get_r_addend())
+ {
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
+ Insn insn1 = elfcpp::Swap<32, big_endian>::readval(iview - 1);
+ Insn insn2 = elfcpp::Swap<32, big_endian>::readval(iview);
+
+ if ((insn1 & 0xffff0000) == addis_2_12
+ && (insn2 & 0xffff0000) == addi_2_2)
+ {
+ insn1 = lis_2 + ha(value + address - 4);
+ elfcpp::Swap<32, big_endian>::writeval(iview - 1, insn1);
+ insn2 = addi_2_2 + l(value + address - 4);
+ elfcpp::Swap<32, big_endian>::writeval(iview, insn2);
+ if (relinfo->rr)
+ {
+ relinfo->rr->set_strategy(relnum - 1,
+ Relocatable_relocs::RELOC_SPECIAL);
+ relinfo->rr->set_strategy(relnum,
+ Relocatable_relocs::RELOC_SPECIAL);
+ }
+ return true;
+ }
+ }
+ }
+ break;
}
}
break;
case elfcpp::R_POWERPC_REL32:
+ case elfcpp::R_POWERPC_REL16DX_HA:
if (size == 64)
overflow = Reloc::CHECK_SIGNED;
break;
break;
}
+ Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
+ Insn insn = 0;
+
if (overflow == Reloc::CHECK_LOW_INSN
|| overflow == Reloc::CHECK_HIGH_INSN)
{
- Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
- Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
+ insn = elfcpp::Swap<32, big_endian>::readval(iview);
if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
overflow = Reloc::CHECK_BITFIELD;
overflow = Reloc::CHECK_SIGNED;
}
+ bool maybe_dq_reloc = false;
typename Powerpc_relocate_functions<size, big_endian>::Status status
= Powerpc_relocate_functions<size, big_endian>::STATUS_OK;
switch (r_type)
if (size == 64)
{
// On ppc64 these are all ds form
- status = Reloc::addr16_ds(view, value, overflow);
+ maybe_dq_reloc = true;
break;
}
case elfcpp::R_POWERPC_ADDR16:
case elfcpp::R_POWERPC_DTPREL16_LO:
case elfcpp::R_POWERPC_GOT_TLSGD16_LO:
case elfcpp::R_POWERPC_GOT_TLSLD16_LO:
- status = Reloc::addr16(view, value, overflow);
+ if (size == 64)
+ status = Reloc::addr16(view, value, overflow);
+ else
+ maybe_dq_reloc = true;
break;
case elfcpp::R_POWERPC_UADDR16:
Reloc::addr16_ha(view, value);
break;
+ case elfcpp::R_POWERPC_REL16DX_HA:
+ status = Reloc::addr16dx_ha(view, value, overflow);
+ break;
+
case elfcpp::R_PPC64_DTPREL16_HIGHER:
if (size == 32)
// R_PPC_EMB_NADDR16_LO
case elfcpp::R_PPC64_GOT16_LO_DS:
case elfcpp::R_PPC64_SECTOFF_DS:
case elfcpp::R_PPC64_SECTOFF_LO_DS:
- status = Reloc::addr16_ds(view, value, overflow);
+ maybe_dq_reloc = true;
break;
case elfcpp::R_POWERPC_ADDR14:
r_type);
break;
}
+
+ if (maybe_dq_reloc)
+ {
+ if (insn == 0)
+ insn = elfcpp::Swap<32, big_endian>::readval(iview);
+
+ if ((insn & (0x3f << 26)) == 56u << 26 /* lq */
+ || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
+ && (insn & 3) == 1))
+ status = Reloc::addr16_dq(view, value, overflow);
+ else if (size == 64
+ || (insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
+ || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
+ || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
+ || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */)
+ status = Reloc::addr16_ds(view, value, overflow);
+ else
+ status = Reloc::addr16(view, value, overflow);
+ }
+
if (status != Powerpc_relocate_functions<size, big_endian>::STATUS_OK
&& (has_stub_value
|| !(gsym != NULL
typedef typename Target_powerpc<size, big_endian>::Relocate Powerpc_relocate;
typedef typename Target_powerpc<size, big_endian>::Relocate_comdat_behavior
Powerpc_comdat_behavior;
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
gold_assert(sh_type == elfcpp::SHT_RELA);
- gold::relocate_section<size, big_endian, Powerpc, elfcpp::SHT_RELA,
- Powerpc_relocate, Powerpc_comdat_behavior>(
+ gold::relocate_section<size, big_endian, Powerpc, Powerpc_relocate,
+ Powerpc_comdat_behavior, Classify_reloc>(
relinfo,
this,
prelocs,
reloc_symbol_changes);
}
+template<int size, bool big_endian>
class Powerpc_scan_relocatable_reloc
{
public:
+ typedef typename Reloc_types<elfcpp::SHT_RELA, size, big_endian>::Reloc
+ Reltype;
+ static const int reloc_size =
+ Reloc_types<elfcpp::SHT_RELA, size, big_endian>::reloc_size;
+ static const int sh_type = elfcpp::SHT_RELA;
+
+ // Return the symbol referred to by the relocation.
+ static inline unsigned int
+ get_r_sym(const Reltype* reloc)
+ { return elfcpp::elf_r_sym<size>(reloc->get_r_info()); }
+
+ // Return the type of the relocation.
+ static inline unsigned int
+ get_r_type(const Reltype* reloc)
+ { return elfcpp::elf_r_type<size>(reloc->get_r_info()); }
+
// Return the strategy to use for a local symbol which is not a
// section symbol, given the relocation type.
inline Relocatable_relocs::Reloc_strategy
const unsigned char* plocal_symbols,
Relocatable_relocs* rr)
{
+ typedef Powerpc_scan_relocatable_reloc<size, big_endian> Scan_strategy;
+
gold_assert(sh_type == elfcpp::SHT_RELA);
- gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA,
- Powerpc_scan_relocatable_reloc>(
+ gold::scan_relocatable_relocs<size, big_endian, Scan_strategy>(
symtab,
layout,
object,
rr);
}
+// Scan the relocs for --emit-relocs.
+
+template<int size, bool big_endian>
+void
+Target_powerpc<size, big_endian>::emit_relocs_scan(
+ Symbol_table* symtab,
+ Layout* layout,
+ Sized_relobj_file<size, big_endian>* object,
+ unsigned int data_shndx,
+ unsigned int sh_type,
+ const unsigned char* prelocs,
+ size_t reloc_count,
+ Output_section* output_section,
+ bool needs_special_offset_handling,
+ size_t local_symbol_count,
+ const unsigned char* plocal_syms,
+ Relocatable_relocs* rr)
+{
+ typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian>
+ Classify_reloc;
+ typedef gold::Default_emit_relocs_strategy<Classify_reloc>
+ Emit_relocs_strategy;
+
+ gold_assert(sh_type == elfcpp::SHT_RELA);
+
+ gold::scan_relocatable_relocs<size, big_endian, Emit_relocs_strategy>(
+ symtab,
+ layout,
+ object,
+ data_shndx,
+ prelocs,
+ reloc_count,
+ output_section,
+ needs_special_offset_handling,
+ local_symbol_count,
+ plocal_syms,
+ rr);
+}
+
// Emit relocations for a section.
// This is a modified version of the function by the same name in
// target-reloc.h. Using relocate_special_relocatable for
size_t reloc_count,
Output_section* output_section,
typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section,
- const Relocatable_relocs* rr,
unsigned char*,
Address view_address,
section_size_type,
Reltype_write;
const int reloc_size
= Reloc_types<elfcpp::SHT_RELA, size, big_endian>::reloc_size;
+ // Offset from start of insn to d-field reloc.
+ const int d_offset = big_endian ? 2 : 0;
Powerpc_relobj<size, big_endian>* const object
= static_cast<Powerpc_relobj<size, big_endian>*>(relinfo->object);
bool zap_next = false;
for (size_t i = 0; i < reloc_count; ++i, prelocs += reloc_size)
{
- Relocatable_relocs::Reloc_strategy strategy = rr->strategy(i);
+ Relocatable_relocs::Reloc_strategy strategy = relinfo->rr->strategy(i);
if (strategy == Relocatable_relocs::RELOC_DISCARD)
continue;
}
else if (strategy == Relocatable_relocs::RELOC_SPECIAL)
{
- if (addend >= 32768)
- addend += got2_addend;
+ if (size == 32)
+ {
+ if (addend >= 32768)
+ addend += got2_addend;
+ }
+ else if (r_type == elfcpp::R_POWERPC_REL16_HA)
+ {
+ r_type = elfcpp::R_POWERPC_ADDR16_HA;
+ addend -= d_offset;
+ }
+ else if (r_type == elfcpp::R_POWERPC_REL16_LO)
+ {
+ r_type = elfcpp::R_POWERPC_ADDR16_LO;
+ addend -= d_offset + 4;
+ }
}
else
gold_unreachable();
else
{
r_type = elfcpp::R_POWERPC_NONE;
- offset -= 2 * big_endian;
+ offset -= d_offset;
}
break;
default:
else
{
r_type = elfcpp::R_POWERPC_NONE;
- offset -= 2 * big_endian;
+ offset -= d_offset;
}
}
}
else
{
r_type = elfcpp::R_POWERPC_NONE;
- offset -= 2 * big_endian;
+ offset -= d_offset;
}
}
}
break;
case tls::TLSOPT_TO_LE:
r_type = elfcpp::R_POWERPC_TPREL16_LO;
- offset += 2 * big_endian;
+ offset += d_offset;
zap_next = true;
break;
default:
r_sym = os->symtab_index();
addend = dtp_offset;
r_type = elfcpp::R_POWERPC_TPREL16_LO;
- offset += 2 * big_endian;
+ offset += d_offset;
zap_next = true;
}
}
if (this->optimize_tls_ie(final) == tls::TLSOPT_TO_LE)
{
r_type = elfcpp::R_POWERPC_TPREL16_LO;
- offset += 2 * big_endian;
+ offset += d_offset;
}
}
}
projects / deliverable / binutils-gdb.git / blobdiff