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[GOLD] PowerPC64 pc-relative TLS support 

Gold version of git commit c213164ad2.

elfcpp/
	* powerpc.h (R_PPC64_TPREL34, R_PPC64_DTPREL34),
	(R_PPC64_GOT_TLSGD34, R_PPC64_GOT_TLSLD34),
	(R_PPC64_GOT_TPREL34, R_PPC64_GOT_DTPREL34): Define.
gold/
	* powerpc.cc (Target_powerpc::Scan::get_reference_flags): Set
	flags for new relocations, and some missing older relocs.
	(Target_powerpc::Scan::local): Handle new pcrel tls relocs.
	Call set_has_static_tls for tprel relocs.
	(Target_powerpc::Scan::global): Likewise.
	(Target_powerpc::Relocate::relocate): Handle new pcrel tls relocs.
This commit is contained in:
Alan Modra 2019-08-01 11:50:55 +09:30
parent 6a010cf67a
commit 89c52ae3a2
4 changed files with 359 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
elfcpp/ChangeLog
View File

@ -1,3 +1,9 @@
2019-08-02 Alan Modra <amodra@gmail.com>
* powerpc.h (R_PPC64_TPREL34, R_PPC64_DTPREL34),
(R_PPC64_GOT_TLSGD34, R_PPC64_GOT_TLSLD34),
(R_PPC64_GOT_TPREL34, R_PPC64_GOT_DTPREL34): Define.
2019-07-13 Alan Modra <amodra@gmail.com>
* powerpc.h (R_PPC64_PCREL_OPT, R_PPC64_D34, R_PPC64_D34_LO),

6
elfcpp/powerpc.h
View File

@ -203,6 +203,12 @@ enum
R_PPC64_REL16_HIGHESTA34 = 143,
R_PPC64_D28 = 144,
R_PPC64_PCREL28 = 145,
R_PPC64_TPREL34 = 146,
R_PPC64_DTPREL34 = 147,
R_PPC64_GOT_TLSGD34 = 148,
R_PPC64_GOT_TLSLD34 = 149,
R_PPC64_GOT_TPREL34 = 150,
R_PPC64_GOT_DTPREL34 = 151,
R_PPC_VLE_REL8 = 216,
R_PPC_VLE_REL15 = 217,

9
gold/ChangeLog
View File

@ -1,3 +1,12 @@
2019-08-02 Alan Modra <amodra@gmail.com>
* powerpc.cc (Target_powerpc::Scan::get_reference_flags): Set
flags for new relocations, and some missing older relocs.
(Target_powerpc::Scan::local): Handle new pcrel tls relocs.
Call set_has_static_tls for tprel relocs.
(Target_powerpc::Scan::global): Likewise.
(Target_powerpc::Relocate::relocate): Handle new pcrel tls relocs.
2019-08-02 Alan Modra <amodra@gmail.com>
* powerpc.cc (Powerpc_relocate_functions::rela, rela_ua): Perform

406
gold/powerpc.cc
View File

@ -7205,6 +7205,15 @@ Target_powerpc<size, big_endian>::Scan::get_reference_flags(
case elfcpp::R_POWERPC_ADDR16_LO:
case elfcpp::R_POWERPC_ADDR16_HI:
case elfcpp::R_POWERPC_ADDR16_HA:
case elfcpp::R_PPC64_ADDR16_HIGHER34:
case elfcpp::R_PPC64_ADDR16_HIGHERA34:
case elfcpp::R_PPC64_ADDR16_HIGHEST34:
case elfcpp::R_PPC64_ADDR16_HIGHESTA34:
case elfcpp::R_PPC64_D34:
case elfcpp::R_PPC64_D34_LO:
case elfcpp::R_PPC64_D34_HI30:
case elfcpp::R_PPC64_D34_HA30:
case elfcpp::R_PPC64_D28:
ref = Symbol::ABSOLUTE_REF;
break;
@ -7273,6 +7282,14 @@ Target_powerpc<size, big_endian>::Scan::get_reference_flags(
case elfcpp::R_POWERPC_GOT_TPREL16:
case elfcpp::R_POWERPC_TLS:
case elfcpp::R_PPC64_TLSGD:
case elfcpp::R_PPC64_TLSLD:
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_PPC64_GOT_TPREL34:
case elfcpp::R_PPC64_GOT_DTPREL34:
ref = Symbol::TLS_REF;
break;
@ -7617,8 +7634,6 @@ Target_powerpc<size, big_endian>::Scan::local(
case elfcpp::R_PPC64_REL16_HIGHERA34:
case elfcpp::R_PPC64_REL16_HIGHEST34:
case elfcpp::R_PPC64_REL16_HIGHESTA34:
break;
case elfcpp::R_PPC64_D34:
case elfcpp::R_PPC64_D34_LO:
case elfcpp::R_PPC64_D34_HI30:
@ -7626,7 +7641,8 @@ Target_powerpc<size, big_endian>::Scan::local(
case elfcpp::R_PPC64_D28:
case elfcpp::R_PPC64_PCREL34:
case elfcpp::R_PPC64_PCREL28:
target->set_powerxx_stubs();
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
break;
case elfcpp::R_PPC64_TOC:
@ -7720,8 +7736,6 @@ Target_powerpc<size, big_endian>::Scan::local(
case elfcpp::R_PPC64_PLT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
target->set_powerxx_stubs();
// Fall through.
case elfcpp::R_POWERPC_PLT16_LO:
case elfcpp::R_POWERPC_PLT16_HI:
case elfcpp::R_POWERPC_PLT16_HA:
@ -7821,8 +7835,6 @@ Target_powerpc<size, big_endian>::Scan::local(
break;
case elfcpp::R_PPC64_GOT_PCREL34:
target->set_powerxx_stubs();
// Fall through.
case elfcpp::R_POWERPC_GOT16:
case elfcpp::R_POWERPC_GOT16_LO:
case elfcpp::R_POWERPC_GOT16_HI:
@ -7871,6 +7883,7 @@ Target_powerpc<size, big_endian>::Scan::local(
target->got_section(symtab, layout);
break;
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_POWERPC_GOT_TLSGD16:
case elfcpp::R_POWERPC_GOT_TLSGD16_LO:
case elfcpp::R_POWERPC_GOT_TLSGD16_HI:
@ -7895,6 +7908,7 @@ Target_powerpc<size, big_endian>::Scan::local(
}
break;
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_POWERPC_GOT_TLSLD16:
case elfcpp::R_POWERPC_GOT_TLSLD16_LO:
case elfcpp::R_POWERPC_GOT_TLSLD16_HI:
@ -7918,6 +7932,7 @@ Target_powerpc<size, big_endian>::Scan::local(
}
break;
case elfcpp::R_PPC64_GOT_DTPREL34:
case elfcpp::R_POWERPC_GOT_DTPREL16:
case elfcpp::R_POWERPC_GOT_DTPREL16_LO:
case elfcpp::R_POWERPC_GOT_DTPREL16_HI:
@ -7930,6 +7945,7 @@ Target_powerpc<size, big_endian>::Scan::local(
}
break;
case elfcpp::R_PPC64_GOT_TPREL34:
case elfcpp::R_POWERPC_GOT_TPREL16:
case elfcpp::R_POWERPC_GOT_TPREL16_LO:
case elfcpp::R_POWERPC_GOT_TPREL16_HI:
@ -8121,6 +8137,52 @@ Target_powerpc<size, big_endian>::Scan::local(
case elfcpp::R_PPC64_TOC16:
case elfcpp::R_PPC64_TOC16_DS:
ppc_object->set_has_small_toc_reloc();
break;
default:
break;
}
switch (r_type)
{
case elfcpp::R_POWERPC_TPREL16:
case elfcpp::R_POWERPC_TPREL16_LO:
case elfcpp::R_POWERPC_TPREL16_HI:
case elfcpp::R_POWERPC_TPREL16_HA:
case elfcpp::R_PPC64_TPREL16_DS:
case elfcpp::R_PPC64_TPREL16_LO_DS:
case elfcpp::R_PPC64_TPREL16_HIGH:
case elfcpp::R_PPC64_TPREL16_HIGHA:
case elfcpp::R_PPC64_TPREL16_HIGHER:
case elfcpp::R_PPC64_TPREL16_HIGHERA:
case elfcpp::R_PPC64_TPREL16_HIGHEST:
case elfcpp::R_PPC64_TPREL16_HIGHESTA:
case elfcpp::R_PPC64_TPREL34:
layout->set_has_static_tls();
break;
default:
break;
}
switch (r_type)
{
case elfcpp::R_PPC64_D34:
case elfcpp::R_PPC64_D34_LO:
case elfcpp::R_PPC64_D34_HI30:
case elfcpp::R_PPC64_D34_HA30:
case elfcpp::R_PPC64_D28:
case elfcpp::R_PPC64_PCREL34:
case elfcpp::R_PPC64_PCREL28:
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
case elfcpp::R_PPC64_PLT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
case elfcpp::R_PPC64_GOT_PCREL34:
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_PPC64_GOT_DTPREL34:
case elfcpp::R_PPC64_GOT_TPREL34:
target->set_powerxx_stubs();
break;
default:
break;
}
@ -8217,8 +8279,6 @@ Target_powerpc<size, big_endian>::Scan::global(
case elfcpp::R_PPC64_REL16_HIGHERA34:
case elfcpp::R_PPC64_REL16_HIGHEST34:
case elfcpp::R_PPC64_REL16_HIGHESTA34:
break;
case elfcpp::R_PPC64_D34:
case elfcpp::R_PPC64_D34_LO:
case elfcpp::R_PPC64_D34_HI30:
@ -8226,7 +8286,8 @@ Target_powerpc<size, big_endian>::Scan::global(
case elfcpp::R_PPC64_D28:
case elfcpp::R_PPC64_PCREL34:
case elfcpp::R_PPC64_PCREL28:
target->set_powerxx_stubs();
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
break;
case elfcpp::R_PPC64_TOC:
@ -8364,8 +8425,6 @@ Target_powerpc<size, big_endian>::Scan::global(
case elfcpp::R_PPC64_PLT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
target->set_powerxx_stubs();
// Fall through.
case elfcpp::R_POWERPC_PLT16_LO:
case elfcpp::R_POWERPC_PLT16_HI:
case elfcpp::R_POWERPC_PLT16_HA:
@ -8499,8 +8558,6 @@ Target_powerpc<size, big_endian>::Scan::global(
break;
case elfcpp::R_PPC64_GOT_PCREL34:
target->set_powerxx_stubs();
// Fall through.
case elfcpp::R_POWERPC_GOT16:
case elfcpp::R_POWERPC_GOT16_LO:
case elfcpp::R_POWERPC_GOT16_HI:
@ -8559,6 +8616,7 @@ Target_powerpc<size, big_endian>::Scan::global(
target->got_section(symtab, layout);
break;
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_POWERPC_GOT_TLSGD16:
case elfcpp::R_POWERPC_GOT_TLSGD16_LO:
case elfcpp::R_POWERPC_GOT_TLSGD16_HI:
@ -8607,6 +8665,7 @@ Target_powerpc<size, big_endian>::Scan::global(
}
break;
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_POWERPC_GOT_TLSLD16:
case elfcpp::R_POWERPC_GOT_TLSLD16_LO:
case elfcpp::R_POWERPC_GOT_TLSLD16_HI:
@ -8630,6 +8689,7 @@ Target_powerpc<size, big_endian>::Scan::global(
}
break;
case elfcpp::R_PPC64_GOT_DTPREL34:
case elfcpp::R_POWERPC_GOT_DTPREL16:
case elfcpp::R_POWERPC_GOT_DTPREL16_LO:
case elfcpp::R_POWERPC_GOT_DTPREL16_HI:
@ -8649,6 +8709,7 @@ Target_powerpc<size, big_endian>::Scan::global(
}
break;
case elfcpp::R_PPC64_GOT_TPREL34:
case elfcpp::R_POWERPC_GOT_TPREL16:
case elfcpp::R_POWERPC_GOT_TPREL16_LO:
case elfcpp::R_POWERPC_GOT_TPREL16_HI:
@ -8834,6 +8895,52 @@ Target_powerpc<size, big_endian>::Scan::global(
case elfcpp::R_PPC64_TOC16:
case elfcpp::R_PPC64_TOC16_DS:
ppc_object->set_has_small_toc_reloc();
break;
default:
break;
}
switch (r_type)
{
case elfcpp::R_POWERPC_TPREL16:
case elfcpp::R_POWERPC_TPREL16_LO:
case elfcpp::R_POWERPC_TPREL16_HI:
case elfcpp::R_POWERPC_TPREL16_HA:
case elfcpp::R_PPC64_TPREL16_DS:
case elfcpp::R_PPC64_TPREL16_LO_DS:
case elfcpp::R_PPC64_TPREL16_HIGH:
case elfcpp::R_PPC64_TPREL16_HIGHA:
case elfcpp::R_PPC64_TPREL16_HIGHER:
case elfcpp::R_PPC64_TPREL16_HIGHERA:
case elfcpp::R_PPC64_TPREL16_HIGHEST:
case elfcpp::R_PPC64_TPREL16_HIGHESTA:
case elfcpp::R_PPC64_TPREL34:
layout->set_has_static_tls();
break;
default:
break;
}
switch (r_type)
{
case elfcpp::R_PPC64_D34:
case elfcpp::R_PPC64_D34_LO:
case elfcpp::R_PPC64_D34_HI30:
case elfcpp::R_PPC64_D34_HA30:
case elfcpp::R_PPC64_D28:
case elfcpp::R_PPC64_PCREL34:
case elfcpp::R_PPC64_PCREL28:
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
case elfcpp::R_PPC64_PLT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
case elfcpp::R_PPC64_GOT_PCREL34:
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_PPC64_GOT_DTPREL34:
case elfcpp::R_PPC64_GOT_TPREL34:
target->set_powerxx_stubs();
break;
default:
break;
}
@ -10141,7 +10248,8 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
else if (r_type == elfcpp::R_POWERPC_GOT_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_HI
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_HA)
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_HA
|| r_type == elfcpp::R_PPC64_GOT_TLSGD34)
{
// First instruction of a global dynamic sequence, arg setup insn.
const bool final = gsym == NULL || gsym->final_value_is_known();
@ -10163,67 +10271,121 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
gold_assert(object->local_has_got_offset(r_sym, got_type));
value = object->local_got_offset(r_sym, got_type);
}
value -= target->got_section()->got_base_offset(object);
if (r_type == elfcpp::R_PPC64_GOT_TLSGD34)
value += target->got_section()->address();
else
value -= target->got_section()->got_base_offset(object);
}
if (tls_type == tls::TLSOPT_TO_IE)
{
if (r_type == elfcpp::R_POWERPC_GOT_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO)
if (r_type == elfcpp::R_PPC64_GOT_TLSGD34)
{
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)
insn |= 32 << 26; // lwz
else
insn |= 58 << 26; // ld
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
Insn* iview = reinterpret_cast<Insn*>(view);
uint64_t pinsn = elfcpp::Swap<32, big_endian>::readval(iview);
pinsn <<= 32;
pinsn |= elfcpp::Swap<32, big_endian>::readval(iview + 1);
// pla -> pld
pinsn += (-2ULL << 56) + (57ULL << 26) - (14ULL << 26);
elfcpp::Swap<32, big_endian>::writeval(iview, pinsn >> 32);
elfcpp::Swap<32, big_endian>::writeval(iview + 1,
pinsn & 0xffffffff);
r_type = elfcpp::R_PPC64_GOT_TPREL34;
}
else
{
if (r_type == elfcpp::R_POWERPC_GOT_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO)
{
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)
insn |= 32 << 26; // lwz
else
insn |= 58 << 26; // ld
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
}
r_type += (elfcpp::R_POWERPC_GOT_TPREL16
- elfcpp::R_POWERPC_GOT_TLSGD16);
}
r_type += (elfcpp::R_POWERPC_GOT_TPREL16
- elfcpp::R_POWERPC_GOT_TLSGD16);
}
else if (tls_type == tls::TLSOPT_TO_LE)
{
if (r_type == elfcpp::R_POWERPC_GOT_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO)
if (r_type == elfcpp::R_PPC64_GOT_TLSGD34)
{
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)
insn |= addis_0_2;
else
insn |= addis_0_13;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_HA;
Insn* iview = reinterpret_cast<Insn*>(view);
uint64_t pinsn = elfcpp::Swap<32, big_endian>::readval(iview);
pinsn <<= 32;
pinsn |= elfcpp::Swap<32, big_endian>::readval(iview + 1);
// pla pcrel -> paddi r13
pinsn += (-1ULL << 52) + (13ULL << 16);
elfcpp::Swap<32, big_endian>::writeval(iview, pinsn >> 32);
elfcpp::Swap<32, big_endian>::writeval(iview + 1,
pinsn & 0xffffffff);
r_type = elfcpp::R_PPC64_TPREL34;
value = psymval->value(object, rela.get_r_addend());
}
else
{
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_TLSGD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSGD16_LO)
{
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)
insn |= addis_0_2;
else
insn |= addis_0_13;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_HA;
value = psymval->value(object, rela.get_r_addend());
}
else
{
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;
}
}
}
}
else if (r_type == elfcpp::R_POWERPC_GOT_TLSLD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_LO
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_HI
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_HA)
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_HA
|| r_type == elfcpp::R_PPC64_GOT_TLSLD34)
{
// First instruction of a local dynamic sequence, arg setup insn.
const tls::Tls_optimization tls_type = target->optimize_tls_ld();
if (tls_type == tls::TLSOPT_NONE)
{
value = target->tlsld_got_offset();
value -= target->got_section()->got_base_offset(object);
if (r_type == elfcpp::R_PPC64_GOT_TLSLD34)
value += target->got_section()->address();
else
value -= target->got_section()->got_base_offset(object);
}
else
{
gold_assert(tls_type == tls::TLSOPT_TO_LE);
if (r_type == elfcpp::R_POWERPC_GOT_TLSLD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_LO)
if (r_type == elfcpp::R_PPC64_GOT_TLSLD34)
{
Insn* iview = reinterpret_cast<Insn*>(view);
uint64_t pinsn = elfcpp::Swap<32, big_endian>::readval(iview);
pinsn <<= 32;
pinsn |= elfcpp::Swap<32, big_endian>::readval(iview + 1);
// pla pcrel -> paddi r13
pinsn += (-1ULL << 52) + (13ULL << 16);
elfcpp::Swap<32, big_endian>::writeval(iview, pinsn >> 32);
elfcpp::Swap<32, big_endian>::writeval(iview + 1,
pinsn & 0xffffffff);
r_type = elfcpp::R_PPC64_TPREL34;
value = dtp_offset;
}
else if (r_type == elfcpp::R_POWERPC_GOT_TLSLD16
|| r_type == elfcpp::R_POWERPC_GOT_TLSLD16_LO)
{
Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
@ -10248,7 +10410,8 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
else if (r_type == elfcpp::R_POWERPC_GOT_DTPREL16
|| r_type == elfcpp::R_POWERPC_GOT_DTPREL16_LO
|| r_type == elfcpp::R_POWERPC_GOT_DTPREL16_HI
|| r_type == elfcpp::R_POWERPC_GOT_DTPREL16_HA)
|| r_type == elfcpp::R_POWERPC_GOT_DTPREL16_HA
|| r_type == elfcpp::R_PPC64_GOT_DTPREL34)
{
// Accesses relative to a local dynamic sequence address,
// no optimisation here.
@ -10262,12 +10425,16 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_DTPREL));
value = object->local_got_offset(r_sym, GOT_TYPE_DTPREL);
}
value -= target->got_section()->got_base_offset(object);
if (r_type == elfcpp::R_PPC64_GOT_DTPREL34)
value += target->got_section()->address();
else
value -= target->got_section()->got_base_offset(object);
}
else if (r_type == elfcpp::R_POWERPC_GOT_TPREL16
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_LO
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_HI
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_HA)
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_HA
|| r_type == elfcpp::R_PPC64_GOT_TPREL34)
{
// First instruction of initial exec sequence.
const bool final = gsym == NULL || gsym->final_value_is_known();
@ -10284,13 +10451,31 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_TPREL));
value = object->local_got_offset(r_sym, GOT_TYPE_TPREL);
}
value -= target->got_section()->got_base_offset(object);
if (r_type == elfcpp::R_PPC64_GOT_TPREL34)
value += target->got_section()->address();
else
value -= target->got_section()->got_base_offset(object);
}
else
{
gold_assert(tls_type == tls::TLSOPT_TO_LE);
if (r_type == elfcpp::R_POWERPC_GOT_TPREL16
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_LO)
if (r_type == elfcpp::R_PPC64_GOT_TPREL34)
{
Insn* iview = reinterpret_cast<Insn*>(view);
uint64_t pinsn = elfcpp::Swap<32, big_endian>::readval(iview);
pinsn <<= 32;
pinsn |= elfcpp::Swap<32, big_endian>::readval(iview + 1);
// pld ra,sym@got@tprel@pcrel -> paddi ra,r13,sym@tprel
pinsn += ((2ULL << 56) + (-1ULL << 52)
+ (14ULL << 26) - (57ULL << 26) + (13ULL << 16));
elfcpp::Swap<32, big_endian>::writeval(iview, pinsn >> 32);
elfcpp::Swap<32, big_endian>::writeval(iview + 1,
pinsn & 0xffffffff);
r_type = elfcpp::R_PPC64_TPREL34;
value = psymval->value(object, rela.get_r_addend());
}
else if (r_type == elfcpp::R_POWERPC_GOT_TPREL16
|| r_type == elfcpp::R_POWERPC_GOT_TPREL16_LO)
{
Insn* iview = reinterpret_cast<Insn*>(view - d_offset);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
@ -10333,12 +10518,33 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
}
else
{
bool is_pcrel = false;
const int reloc_size = elfcpp::Elf_sizes<size>::rela_size;
elfcpp::Shdr<size, big_endian> shdr(relinfo->reloc_shdr);
size_t reloc_count = shdr.get_sh_size() / reloc_size;
if (relnum < reloc_count - 1)
{
Reltype next_rela(preloc + reloc_size);
unsigned int r_type2
= elfcpp::elf_r_type<size>(next_rela.get_r_info());
if ((r_type2 == elfcpp::R_PPC64_REL24_NOTOC
|| r_type2 == elfcpp::R_PPC64_PLTCALL_NOTOC)
&& next_rela.get_r_offset() == rela.get_r_offset())
is_pcrel = true;
}
Insn* iview = reinterpret_cast<Insn*>(view);
Insn insn = addi_3_3;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
view += d_offset;
value = psymval->value(object, rela.get_r_addend());
if (is_pcrel)
{
elfcpp::Swap<32, big_endian>::writeval(iview, nop);
r_type = elfcpp::R_POWERPC_NONE;
}
else
{
elfcpp::Swap<32, big_endian>::writeval(iview, addi_3_3);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
view += d_offset;
value = psymval->value(object, rela.get_r_addend());
}
}
this->skip_next_tls_get_addr_call();
}
@ -10352,13 +10558,34 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
const tls::Tls_optimization tls_type = target->optimize_tls_ld();
if (tls_type == tls::TLSOPT_TO_LE)
{
bool is_pcrel = false;
const int reloc_size = elfcpp::Elf_sizes<size>::rela_size;
elfcpp::Shdr<size, big_endian> shdr(relinfo->reloc_shdr);
size_t reloc_count = shdr.get_sh_size() / reloc_size;
if (relnum < reloc_count - 1)
{
Reltype next_rela(preloc + reloc_size);
unsigned int r_type2
= elfcpp::elf_r_type<size>(next_rela.get_r_info());
if ((r_type2 == elfcpp::R_PPC64_REL24_NOTOC
|| r_type2 == elfcpp::R_PPC64_PLTCALL_NOTOC)
&& next_rela.get_r_offset() == rela.get_r_offset())
is_pcrel = true;
}
Insn* iview = reinterpret_cast<Insn*>(view);
Insn insn = addi_3_3;
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
if (is_pcrel)
{
elfcpp::Swap<32, big_endian>::writeval(iview, nop);
r_type = elfcpp::R_POWERPC_NONE;
}
else
{
elfcpp::Swap<32, big_endian>::writeval(iview, addi_3_3);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
view += d_offset;
value = dtp_offset;
}
this->skip_next_tls_get_addr_call();
r_type = elfcpp::R_POWERPC_TPREL16_LO;
view += d_offset;
value = dtp_offset;
}
}
else if (r_type == elfcpp::R_POWERPC_TLS)
@ -10368,15 +10595,40 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
const tls::Tls_optimization tls_type = target->optimize_tls_ie(final);
if (tls_type == tls::TLSOPT_TO_LE)
{
Insn* iview = reinterpret_cast<Insn*>(view);
Address roff = rela.get_r_offset() & 3;
Insn* iview = reinterpret_cast<Insn*>(view - roff);
Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
unsigned int reg = size == 32 ? 2 : 13;
insn = at_tls_transform(insn, reg);
gold_assert(insn != 0);
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
view += d_offset;
value = psymval->value(object, rela.get_r_addend());
if (roff == 0)
{
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_TPREL16_LO;
view += d_offset;
value = psymval->value(object, rela.get_r_addend());
}
else if (roff == 1)
{
// For pcrel IE to LE we already have the full offset
// and thus don't need an addi here. A nop or mr will do.
if ((insn & (0x3f << 26)) == 14 << 26)
{
// Extract regs from addi rt,ra,si.
unsigned int rt = (insn >> 21) & 0x1f;
unsigned int ra = (insn >> 16) & 0x1f;
if (rt == ra)
insn = nop;
else
{
// Build or ra,rs,rb with rb==rs, ie. mr ra,rs.
insn = (rt << 16) | (ra << 21) | (ra << 11);
insn |= (31u << 26) | (444u << 1);
}
}
elfcpp::Swap<32, big_endian>::writeval(iview, insn);
r_type = elfcpp::R_POWERPC_NONE;
}
}
}
else if (!has_stub_value)
@ -10479,6 +10731,10 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
case elfcpp::R_PPC64_PLT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
case elfcpp::R_PPC64_PCREL28:
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_PPC64_GOT_TPREL34:
case elfcpp::R_PPC64_GOT_DTPREL34:
case elfcpp::R_PPC64_REL16_HIGHER34:
case elfcpp::R_PPC64_REL16_HIGHERA34:
case elfcpp::R_PPC64_REL16_HIGHEST34:
@ -10524,6 +10780,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
case elfcpp::R_PPC64_TPREL16_HIGHERA:
case elfcpp::R_PPC64_TPREL16_HIGHEST:
case elfcpp::R_PPC64_TPREL16_HIGHESTA:
case elfcpp::R_PPC64_TPREL34:
// tls symbol values are relative to tls_segment()->vaddr()
value -= tp_offset;
break;
@ -10546,6 +10803,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
case elfcpp::R_POWERPC_DTPREL:
case elfcpp::R_PPC64_DTPREL16_HIGH:
case elfcpp::R_PPC64_DTPREL16_HIGHA:
case elfcpp::R_PPC64_DTPREL34:
// tls symbol values are relative to tls_segment()->vaddr()
value -= dtp_offset;
break;
@ -11011,6 +11269,12 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
case elfcpp::R_PPC64_D28:
case elfcpp::R_PPC64_PCREL28:
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_PPC64_GOT_TPREL34:
case elfcpp::R_PPC64_GOT_DTPREL34:
overflow = Reloc::CHECK_SIGNED;
break;
}
@ -11307,6 +11571,12 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
case elfcpp::R_PPC64_GOT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34:
case elfcpp::R_PPC64_PLT_PCREL34_NOTOC:
case elfcpp::R_PPC64_TPREL34:
case elfcpp::R_PPC64_DTPREL34:
case elfcpp::R_PPC64_GOT_TLSGD34:
case elfcpp::R_PPC64_GOT_TLSLD34:
case elfcpp::R_PPC64_GOT_TPREL34:
case elfcpp::R_PPC64_GOT_DTPREL34:
if (size == 32)
goto unsupp;
status = Reloc::addr34(view, value, overflow);