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-rw-r--r--gold/powerpc.cc680
1 files changed, 457 insertions, 223 deletions
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index 80f222d..d573666 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -1085,7 +1085,16 @@ class Target_powerpc : public Sized_target<size, big_endian>
void
set_power10_stubs()
{
- this->power10_stubs_ = true;
+ if (parameters->options().power10_stubs_enum()
+ != General_options::POWER10_STUBS_NO)
+ this->power10_stubs_ = true;
+ }
+
+ bool
+ power10_stubs_auto() const
+ {
+ return (parameters->options().power10_stubs_enum()
+ == General_options::POWER10_STUBS_AUTO);
}
bool
@@ -4621,26 +4630,32 @@ class Stub_table : public Output_relaxed_input_section
struct Plt_stub_ent
{
Plt_stub_ent(unsigned int off, unsigned int indx)
- : off_(off), indx_(indx), iter_(0), notoc_(0), r2save_(0), localentry0_(0)
+ : off_(off), indx_(indx), iter_(0), notoc_(0), toc_(0),
+ r2save_(0), localentry0_(0), tocoff_(0)
{ }
unsigned int off_;
- unsigned int indx_ : 28;
+ unsigned int indx_;
unsigned int iter_ : 1;
unsigned int notoc_ : 1;
+ unsigned int toc_ : 1;
unsigned int r2save_ : 1;
unsigned int localentry0_ : 1;
+ unsigned int tocoff_ : 8;
};
struct Branch_stub_ent
{
Branch_stub_ent(unsigned int off, bool notoc, bool save_res)
- : off_(off), iter_(false), notoc_(notoc), save_res_(save_res)
+ : off_(off), iter_(0), notoc_(notoc), toc_(0), save_res_(save_res),
+ tocoff_(0)
{ }
unsigned int off_;
- bool iter_;
- bool notoc_;
- bool save_res_;
+ unsigned int iter_ : 1;
+ unsigned int notoc_ : 1;
+ unsigned int toc_ : 1;
+ unsigned int save_res_ : 1;
+ unsigned int tocoff_ : 8;
};
typedef typename elfcpp::Elf_types<size>::Elf_Addr Address;
static const Address invalid_address = static_cast<Address>(0) - 1;
@@ -4888,7 +4903,7 @@ class Stub_table : public Output_relaxed_input_section
// Size of a given plt call stub.
unsigned int
- plt_call_size(typename Plt_stub_entries::const_iterator p) const;
+ plt_call_size(typename Plt_stub_entries::iterator p) const;
unsigned int
plt_call_align(unsigned int bytes) const
@@ -4899,16 +4914,14 @@ class Stub_table : public Output_relaxed_input_section
// Return long branch stub size.
unsigned int
- branch_stub_size(typename Branch_stub_entries::const_iterator p,
+ branch_stub_size(typename Branch_stub_entries::iterator p,
bool* need_lt);
- bool
- build_tls_opt_head(unsigned char** pp,
- typename Plt_stub_entries::const_iterator cs);
+ void
+ build_tls_opt_head(unsigned char** pp, bool save_lr);
- bool
- build_tls_opt_tail(unsigned char* p,
- typename Plt_stub_entries::const_iterator cs);
+ void
+ build_tls_opt_tail(unsigned char* p);
void
plt_error(const Plt_stub_key& p);
@@ -5073,15 +5086,22 @@ Stub_table<size, big_endian>::add_plt_call_entry(
if (r_type == elfcpp::R_PPC64_REL24_NOTOC)
{
if (!p.second && !p.first->second.notoc_
- && !this->targ_->power10_stubs())
+ && (!this->targ_->power10_stubs()
+ || this->targ_->power10_stubs_auto()))
this->need_resize_ = true;
p.first->second.notoc_ = 1;
}
- else if (!tocsave && !p.first->second.localentry0_)
+ else
{
- if (!p.second && !p.first->second.r2save_)
+ if (!p.second && !p.first->second.toc_)
this->need_resize_ = true;
- p.first->second.r2save_ = 1;
+ p.first->second.toc_ = 1;
+ if (!tocsave && !p.first->second.localentry0_)
+ {
+ if (!p.second && !p.first->second.r2save_)
+ this->need_resize_ = true;
+ p.first->second.r2save_ = 1;
+ }
}
}
if (p.second || (this->resizing_ && !p.first->second.iter_))
@@ -5124,15 +5144,22 @@ Stub_table<size, big_endian>::add_plt_call_entry(
if (r_type == elfcpp::R_PPC64_REL24_NOTOC)
{
if (!p.second && !p.first->second.notoc_
- && !this->targ_->power10_stubs())
+ && (!this->targ_->power10_stubs()
+ || this->targ_->power10_stubs_auto()))
this->need_resize_ = true;
p.first->second.notoc_ = 1;
}
- else if (!tocsave && !p.first->second.localentry0_)
+ else
{
- if (!p.second && !p.first->second.r2save_)
+ if (!p.second && !p.first->second.toc_)
this->need_resize_ = true;
- p.first->second.r2save_ = 1;
+ p.first->second.toc_ = 1;
+ if (!tocsave && !p.first->second.localentry0_)
+ {
+ if (!p.second && !p.first->second.r2save_)
+ this->need_resize_ = true;
+ p.first->second.r2save_ = 1;
+ }
}
}
if (p.second || (this->resizing_ && !p.first->second.iter_))
@@ -5221,11 +5248,18 @@ Stub_table<size, big_endian>::add_long_branch_entry(
Branch_stub_ent ent(this->branch_size_, notoc, save_res);
std::pair<typename Branch_stub_entries::iterator, bool> p
= this->long_branch_stubs_.insert(std::make_pair(key, ent));
- if (notoc && !p.first->second.notoc_)
+ if (notoc)
{
- this->need_resize_ = true;
+ if (!p.second && !p.first->second.notoc_)
+ this->need_resize_ = true;
p.first->second.notoc_ = true;
}
+ else
+ {
+ if (!p.second && !p.first->second.toc_)
+ this->need_resize_ = true;
+ p.first->second.toc_ = true;
+ }
gold_assert(save_res == p.first->second.save_res_);
if (p.second || (this->resizing_ && !p.first->second.iter_))
{
@@ -5320,7 +5354,7 @@ Stub_table<size, big_endian>::add_eh_frame(Layout* layout)
if (!this->targ_->has_glink())
return;
- typedef typename Plt_stub_entries::const_iterator plt_iter;
+ typedef typename Plt_stub_entries::iterator plt_iter;
std::vector<plt_iter> calls;
if (!this->plt_call_stubs_.empty())
for (plt_iter cs = this->plt_call_stubs_.begin();
@@ -5622,7 +5656,7 @@ Stub_table<size, big_endian>::define_stub_syms(Symbol_table* symtab)
// output .symtab ordering depends on the order in which symbols
// are added to the linker symtab. We want reproducible output
// so must sort the call stub symbols.
- typedef typename Plt_stub_entries::const_iterator plt_iter;
+ typedef typename Plt_stub_entries::iterator plt_iter;
std::vector<plt_iter> sorted;
sorted.resize(this->plt_call_stubs_.size());
@@ -5666,7 +5700,7 @@ Stub_table<size, big_endian>::define_stub_syms(Symbol_table* symtab)
}
}
- typedef typename Branch_stub_entries::const_iterator branch_iter;
+ typedef typename Branch_stub_entries::iterator branch_iter;
for (branch_iter bs = this->long_branch_stubs_.begin();
bs != this->long_branch_stubs_.end();
++bs)
@@ -5688,88 +5722,72 @@ Stub_table<size, big_endian>::define_stub_syms(Symbol_table* symtab)
// Emit the start of a __tls_get_addr_opt plt call stub.
template<int size, bool big_endian>
-bool
-Stub_table<size, big_endian>::build_tls_opt_head(
- unsigned char** pp,
- typename Plt_stub_entries::const_iterator cs)
+void
+Stub_table<size, big_endian>::build_tls_opt_head(unsigned char** pp,
+ bool save_lr)
{
- if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ unsigned char* p = *pp;
+ if (size == 64)
{
- unsigned char* p = *pp;
- if (size == 64)
- {
- write_insn<big_endian>(p, ld_11_3 + 0);
- p += 4;
- write_insn<big_endian>(p, ld_12_3 + 8);
- p += 4;
- write_insn<big_endian>(p, mr_0_3);
- p += 4;
- write_insn<big_endian>(p, cmpdi_11_0);
- p += 4;
- write_insn<big_endian>(p, add_3_12_13);
- p += 4;
- write_insn<big_endian>(p, beqlr);
- p += 4;
- write_insn<big_endian>(p, mr_3_0);
- p += 4;
- if (cs->second.r2save_ && !cs->second.localentry0_)
- {
- write_insn<big_endian>(p, mflr_11);
- p += 4;
- write_insn<big_endian>(p, (std_11_1 + this->targ_->stk_linker()));
- p += 4;
- }
- }
- else
+ write_insn<big_endian>(p, ld_11_3 + 0);
+ p += 4;
+ write_insn<big_endian>(p, ld_12_3 + 8);
+ p += 4;
+ write_insn<big_endian>(p, mr_0_3);
+ p += 4;
+ write_insn<big_endian>(p, cmpdi_11_0);
+ p += 4;
+ write_insn<big_endian>(p, add_3_12_13);
+ p += 4;
+ write_insn<big_endian>(p, beqlr);
+ p += 4;
+ write_insn<big_endian>(p, mr_3_0);
+ p += 4;
+ if (save_lr)
{
- write_insn<big_endian>(p, lwz_11_3 + 0);
- p += 4;
- write_insn<big_endian>(p, lwz_12_3 + 4);
+ write_insn<big_endian>(p, mflr_11);
p += 4;
- write_insn<big_endian>(p, mr_0_3);
- p += 4;
- write_insn<big_endian>(p, cmpwi_11_0);
- p += 4;
- write_insn<big_endian>(p, add_3_12_2);
- p += 4;
- write_insn<big_endian>(p, beqlr);
- p += 4;
- write_insn<big_endian>(p, mr_3_0);
- p += 4;
- write_insn<big_endian>(p, nop);
+ write_insn<big_endian>(p, (std_11_1 + this->targ_->stk_linker()));
p += 4;
}
- *pp = p;
- return true;
}
- return false;
-}
-
-// Emit the tail of a __tls_get_addr_opt plt call stub.
-
-template<int size, bool big_endian>
-bool
-Stub_table<size, big_endian>::build_tls_opt_tail(
- unsigned char* p,
- typename Plt_stub_entries::const_iterator cs)
-{
- if (size == 64
- && cs->second.r2save_
- && !cs->second.localentry0_
- && this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ else
{
- write_insn<big_endian>(p, bctrl);
+ write_insn<big_endian>(p, lwz_11_3 + 0);
p += 4;
- write_insn<big_endian>(p, ld_2_1 + this->targ_->stk_toc());
+ write_insn<big_endian>(p, lwz_12_3 + 4);
p += 4;
- write_insn<big_endian>(p, ld_11_1 + this->targ_->stk_linker());
+ write_insn<big_endian>(p, mr_0_3);
p += 4;
- write_insn<big_endian>(p, mtlr_11);
+ write_insn<big_endian>(p, cmpwi_11_0);
+ p += 4;
+ write_insn<big_endian>(p, add_3_12_2);
+ p += 4;
+ write_insn<big_endian>(p, beqlr);
+ p += 4;
+ write_insn<big_endian>(p, mr_3_0);
+ p += 4;
+ write_insn<big_endian>(p, nop);
p += 4;
- write_insn<big_endian>(p, blr);
- return true;
}
- return false;
+ *pp = p;
+}
+
+// Emit the tail of a __tls_get_addr_opt plt call stub.
+
+template<int size, bool big_endian>
+void
+Stub_table<size, big_endian>::build_tls_opt_tail(unsigned char* p)
+{
+ write_insn<big_endian>(p, bctrl);
+ p += 4;
+ write_insn<big_endian>(p, ld_2_1 + this->targ_->stk_toc());
+ p += 4;
+ write_insn<big_endian>(p, ld_11_1 + this->targ_->stk_linker());
+ p += 4;
+ write_insn<big_endian>(p, mtlr_11);
+ p += 4;
+ write_insn<big_endian>(p, blr);
}
// Emit pc-relative plt call stub code.
@@ -5939,7 +5957,7 @@ build_notoc_offset(unsigned char* p, uint64_t off, bool load)
template<int size, bool big_endian>
unsigned int
Stub_table<size, big_endian>::plt_call_size(
- typename Plt_stub_entries::const_iterator p) const
+ typename Plt_stub_entries::iterator p) const
{
if (size == 32)
{
@@ -5951,77 +5969,122 @@ Stub_table<size, big_endian>::plt_call_size(
const Output_data_plt_powerpc<size, big_endian>* plt;
uint64_t plt_addr = this->plt_off(p, &plt);
plt_addr += plt->address();
- unsigned int bytes = 0;
- const Symbol* gsym = p->first.sym_;
- if (this->targ_->is_tls_get_addr_opt(gsym))
+ if (this->targ_->power10_stubs()
+ && this->targ_->power10_stubs_auto())
{
- if (p->second.r2save_ && !p->second.localentry0_)
- bytes = 13 * 4;
- else
- bytes = 7 * 4;
+ unsigned int bytes = 0;
+ if (p->second.notoc_)
+ {
+ if (this->targ_->is_tls_get_addr_opt(p->first.sym_))
+ bytes = 7 * 4;
+ uint64_t from = this->stub_address() + p->second.off_ + bytes;
+ uint64_t odd = from & 4;
+ uint64_t off = plt_addr - from;
+ if (off - odd + (1ULL << 33) < 1ULL << 34)
+ bytes += odd + 4 * 4;
+ else if (off - (8 - odd) + (0x20002ULL << 32) < 0x40004ULL << 32)
+ bytes += 7 * 4;
+ else
+ bytes += 8 * 4;
+ bytes = this->plt_call_align(bytes);
+ }
+ unsigned int tail = 0;
+ if (p->second.toc_)
+ {
+ p->second.tocoff_ = bytes;
+ if (this->targ_->is_tls_get_addr_opt(p->first.sym_))
+ {
+ bytes += 7 * 4;
+ if (p->second.r2save_ && !p->second.localentry0_)
+ {
+ bytes += 2 * 4;
+ tail = 4 * 4;
+ }
+ }
+ if (p->second.r2save_)
+ bytes += 4;
+ uint64_t got_addr
+ = this->targ_->got_section()->output_section()->address();
+ const Powerpc_relobj<size, big_endian>* ppcobj = static_cast
+ <const Powerpc_relobj<size, big_endian>*>(p->first.object_);
+ got_addr += ppcobj->toc_base_offset();
+ uint64_t off = plt_addr - got_addr;
+ bytes += 3 * 4 + 4 * (ha(off) != 0);
+ }
+ return bytes + tail;
}
+ else
+ {
+ unsigned int bytes = 0;
+ unsigned int tail = 0;
+ if (this->targ_->is_tls_get_addr_opt(p->first.sym_))
+ {
+ bytes = 7 * 4;
+ if (p->second.r2save_ && !p->second.localentry0_)
+ {
+ bytes = 9 * 4;
+ tail = 4 * 4;
+ }
+ }
- if (p->second.r2save_)
- bytes += 4;
+ if (p->second.r2save_)
+ bytes += 4;
- if (this->targ_->power10_stubs())
- {
- uint64_t from = this->stub_address() + p->second.off_ + bytes;
- if (bytes > 8 * 4)
- from -= 4 * 4;
- uint64_t odd = from & 4;
- uint64_t off = plt_addr - from;
- if (off - odd + (1ULL << 33) < 1ULL << 34)
- bytes += odd + 4 * 4;
- else if (off - (8 - odd) + (0x20002ULL << 32) < 0x40004ULL << 32)
- bytes += 7 * 4;
- else
- bytes += 8 * 4;
- return bytes;
- }
+ if (this->targ_->power10_stubs())
+ {
+ uint64_t from = this->stub_address() + p->second.off_ + bytes;
+ uint64_t odd = from & 4;
+ uint64_t off = plt_addr - from;
+ if (off - odd + (1ULL << 33) < 1ULL << 34)
+ bytes += odd + 4 * 4;
+ else if (off - (8 - odd) + (0x20002ULL << 32) < 0x40004ULL << 32)
+ bytes += 7 * 4;
+ else
+ bytes += 8 * 4;
+ return bytes + tail;
+ }
- if (p->second.notoc_)
- {
- uint64_t from = this->stub_address() + p->second.off_ + bytes + 2 * 4;
- if (bytes > 32)
- from -= 4 * 4;
- uint64_t off = plt_addr - from;
- if (off + 0x8000 < 0x10000)
- bytes += 7 * 4;
- else if (off + 0x80008000ULL < 0x100000000ULL)
- bytes += 8 * 4;
- else
+ if (p->second.notoc_)
{
- bytes += 8 * 4;
- if (off + 0x800000000000ULL >= 0x1000000000000ULL
- && ((off >> 32) & 0xffff) != 0)
- bytes += 4;
- if (((off >> 32) & 0xffffffffULL) != 0)
- bytes += 4;
- if (hi(off) != 0)
- bytes += 4;
- if (l(off) != 0)
- bytes += 4;
+ uint64_t from = this->stub_address() + p->second.off_ + bytes + 2 * 4;
+ uint64_t off = plt_addr - from;
+ if (off + 0x8000 < 0x10000)
+ bytes += 7 * 4;
+ else if (off + 0x80008000ULL < 0x100000000ULL)
+ bytes += 8 * 4;
+ else
+ {
+ bytes += 8 * 4;
+ if (off + 0x800000000000ULL >= 0x1000000000000ULL
+ && ((off >> 32) & 0xffff) != 0)
+ bytes += 4;
+ if (((off >> 32) & 0xffffffffULL) != 0)
+ bytes += 4;
+ if (hi(off) != 0)
+ bytes += 4;
+ if (l(off) != 0)
+ bytes += 4;
+ }
+ return bytes + tail;
}
- return bytes;
- }
- uint64_t got_addr = this->targ_->got_section()->output_section()->address();
- const Powerpc_relobj<size, big_endian>* ppcobj = static_cast
- <const Powerpc_relobj<size, big_endian>*>(p->first.object_);
- got_addr += ppcobj->toc_base_offset();
- uint64_t off = plt_addr - got_addr;
- bytes += 3 * 4 + 4 * (ha(off) != 0);
- if (this->targ_->abiversion() < 2)
- {
- bool static_chain = parameters->options().plt_static_chain();
- bool thread_safe = this->targ_->plt_thread_safe();
- bytes += (4
- + 4 * static_chain
- + 8 * thread_safe
- + 4 * (ha(off + 8 + 8 * static_chain) != ha(off)));
+ uint64_t got_addr = this->targ_->got_section()->output_section()->address();
+ const Powerpc_relobj<size, big_endian>* ppcobj = static_cast
+ <const Powerpc_relobj<size, big_endian>*>(p->first.object_);
+ got_addr += ppcobj->toc_base_offset();
+ uint64_t off = plt_addr - got_addr;
+ bytes += 3 * 4 + 4 * (ha(off) != 0);
+ if (this->targ_->abiversion() < 2)
+ {
+ bool static_chain = parameters->options().plt_static_chain();
+ bool thread_safe = this->targ_->plt_thread_safe();
+ bytes += (4
+ + 4 * static_chain
+ + 8 * thread_safe
+ + 4 * (ha(off + 8 + 8 * static_chain) != ha(off)));
+ }
+ return bytes + tail;
}
- return bytes;
}
// Return long branch stub size.
@@ -6029,7 +6092,7 @@ Stub_table<size, big_endian>::plt_call_size(
template<int size, bool big_endian>
unsigned int
Stub_table<size, big_endian>::branch_stub_size(
- typename Branch_stub_entries::const_iterator p,
+ typename Branch_stub_entries::iterator p,
bool* need_lt)
{
Address loc = this->stub_address() + this->last_plt_size_ + p->second.off_;
@@ -6043,46 +6106,56 @@ Stub_table<size, big_endian>::branch_stub_size(
}
uint64_t off = p->first.dest_ - loc;
+ unsigned int bytes = 0;
if (p->second.notoc_)
{
if (this->targ_->power10_stubs())
{
Address odd = loc & 4;
if (off + (1 << 25) < 2 << 25)
- return odd + 12;
- if (off - odd + (1ULL << 33) < 1ULL << 34)
- return odd + 16;
- if (off - (8 - odd) + (0x20002ULL << 32) < 0x40004ULL << 32)
- return 28;
- return 32;
- }
- off -= 8;
- if (off + 0x8000 < 0x10000)
- return 24;
- if (off + 0x80008000ULL < 0x100000000ULL)
- {
- if (off + 24 + (1 << 25) < 2 << 25)
- return 28;
- return 32;
- }
- unsigned int bytes = 32;
- if (off + 0x800000000000ULL >= 0x1000000000000ULL
- && ((off >> 32) & 0xffff) != 0)
- bytes += 4;
- if (((off >> 32) & 0xffffffffULL) != 0)
- bytes += 4;
- if (hi(off) != 0)
- bytes += 4;
- if (l(off) != 0)
- bytes += 4;
- return bytes;
+ bytes = odd + 12;
+ else if (off - odd + (1ULL << 33) < 1ULL << 34)
+ bytes = odd + 16;
+ else if (off - (8 - odd) + (0x20002ULL << 32) < 0x40004ULL << 32)
+ bytes = 28;
+ else
+ bytes = 32;
+ if (!(p->second.toc_ && this->targ_->power10_stubs_auto()))
+ return bytes;
+ p->second.tocoff_ = bytes;
+ }
+ else
+ {
+ off -= 8;
+ if (off + 0x8000 < 0x10000)
+ return 24;
+ if (off + 0x80008000ULL < 0x100000000ULL)
+ {
+ if (off + 24 + (1 << 25) < 2 << 25)
+ return 28;
+ return 32;
+ }
+
+ bytes = 32;
+ if (off + 0x800000000000ULL >= 0x1000000000000ULL
+ && ((off >> 32) & 0xffff) != 0)
+ bytes += 4;
+ if (((off >> 32) & 0xffffffffULL) != 0)
+ bytes += 4;
+ if (hi(off) != 0)
+ bytes += 4;
+ if (l(off) != 0)
+ bytes += 4;
+ return bytes;
+ }
}
if (off + (1 << 25) < 2 << 25)
- return 4;
- if (!this->targ_->power10_stubs())
+ return bytes + 4;
+ if (!this->targ_->power10_stubs()
+ || (p->second.toc_ && this->targ_->power10_stubs_auto()))
*need_lt = true;
- return 16;
+ return bytes + 16;
}
template<int size, bool big_endian>
@@ -6118,6 +6191,10 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
if (size == 64
&& this->targ_->power10_stubs())
{
+ const Output_data_got_powerpc<size, big_endian>* got
+ = this->targ_->got_section();
+ Address got_os_addr = got->output_section()->address();
+
if (!this->plt_call_stubs_.empty())
{
// Write out plt call stubs.
@@ -6127,22 +6204,94 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
++cs)
{
p = oview + cs->second.off_;
- this->build_tls_opt_head(&p, cs);
- if (cs->second.r2save_)
- {
- write_insn<big_endian>(p, std_2_1 + this->targ_->stk_toc());
- p += 4;
- }
const Output_data_plt_powerpc<size, big_endian>* plt;
Address pltoff = this->plt_off(cs, &plt);
Address plt_addr = pltoff + plt->address();
- Address from = this->stub_address() + (p - oview);
- Address delta = plt_addr - from;
- p = build_power10_offset<big_endian>(p, delta, from & 4, true);
- write_insn<big_endian>(p, mtctr_12);
- p += 4;
- if (!this->build_tls_opt_tail(p, cs))
- write_insn<big_endian>(p, bctr);
+ if (this->targ_->power10_stubs_auto())
+ {
+ if (cs->second.notoc_)
+ {
+ if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ this->build_tls_opt_head(&p, false);
+ Address from = this->stub_address() + (p - oview);
+ Address delta = plt_addr - from;
+ p = build_power10_offset<big_endian>(p, delta, from & 4,
+ true);
+ write_insn<big_endian>(p, mtctr_12);
+ p += 4;
+ write_insn<big_endian>(p, bctr);
+ p += 4;
+ p = oview + this->plt_call_align(p - oview);
+ }
+ if (cs->second.toc_)
+ {
+ if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ {
+ bool save_lr
+ = cs->second.r2save_ && !cs->second.localentry0_;
+ this->build_tls_opt_head(&p, save_lr);
+ }
+ const Powerpc_relobj<size, big_endian>* ppcobj
+ = static_cast<const Powerpc_relobj<size, big_endian>*>(
+ cs->first.object_);
+ Address got_addr = got_os_addr + ppcobj->toc_base_offset();
+ Address off = plt_addr - got_addr;
+
+ if (off + 0x80008000 > 0xffffffff || (off & 7) != 0)
+ this->plt_error(cs->first);
+
+ if (cs->second.r2save_)
+ {
+ write_insn<big_endian>(p, std_2_1 + this->targ_->stk_toc());
+ p += 4;
+ }
+ if (ha(off) != 0)
+ {
+ write_insn<big_endian>(p, addis_12_2 + ha(off));
+ p += 4;
+ write_insn<big_endian>(p, ld_12_12 + l(off));
+ p += 4;
+ }
+ else
+ {
+ write_insn<big_endian>(p, ld_12_2 + l(off));
+ p += 4;
+ }
+ write_insn<big_endian>(p, mtctr_12);
+ p += 4;
+ if (cs->second.r2save_
+ && !cs->second.localentry0_
+ && this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ this->build_tls_opt_tail(p);
+ else
+ write_insn<big_endian>(p, bctr);
+ }
+ }
+ else
+ {
+ if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ {
+ bool save_lr
+ = cs->second.r2save_ && !cs->second.localentry0_;
+ this->build_tls_opt_head(&p, save_lr);
+ }
+ if (cs->second.r2save_)
+ {
+ write_insn<big_endian>(p, std_2_1 + this->targ_->stk_toc());
+ p += 4;
+ }
+ Address from = this->stub_address() + (p - oview);
+ Address delta = plt_addr - from;
+ p = build_power10_offset<big_endian>(p, delta, from & 4, true);
+ write_insn<big_endian>(p, mtctr_12);
+ p += 4;
+ if (cs->second.r2save_
+ && !cs->second.localentry0_
+ && this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ this->build_tls_opt_tail(p);
+ else
+ write_insn<big_endian>(p, bctr);
+ }
}
}
@@ -6158,19 +6307,76 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
p = oview + off;
Address loc = this->stub_address() + off;
Address delta = bs->first.dest_ - loc;
- if (bs->second.notoc_ || delta + (1 << 25) >= 2 << 25)
+ if (this->targ_->power10_stubs_auto())
{
- unsigned char* startp = p;
- p = build_power10_offset<big_endian>(p, delta, loc & 4, false);
- delta -= p - startp;
+ if (bs->second.notoc_)
+ {
+ unsigned char* startp = p;
+ p = build_power10_offset<big_endian>(p, delta,
+ loc & 4, false);
+ delta -= p - startp;
+ startp = p;
+ if (delta + (1 << 25) < 2 << 25)
+ write_insn<big_endian>(p, b | (delta & 0x3fffffc));
+ else
+ {
+ write_insn<big_endian>(p, mtctr_12);
+ p += 4;
+ write_insn<big_endian>(p, bctr);
+ }
+ p += 4;
+ delta -= p - startp;
+ }
+ if (bs->second.toc_)
+ {
+ if (delta + (1 << 25) >= 2 << 25)
+ {
+ Address brlt_addr
+ = this->targ_->find_branch_lookup_table(bs->first.dest_);
+ gold_assert(brlt_addr != invalid_address);
+ brlt_addr += this->targ_->brlt_section()->address();
+ Address got_addr = got_os_addr + bs->first.toc_base_off_;
+ Address brltoff = brlt_addr - got_addr;
+ if (ha(brltoff) == 0)
+ {
+ write_insn<big_endian>(p, ld_12_2 + l(brltoff));
+ p += 4;
+ }
+ else
+ {
+ write_insn<big_endian>(p, addis_12_2 + ha(brltoff));
+ p += 4;
+ write_insn<big_endian>(p, ld_12_12 + l(brltoff));
+ p += 4;
+ }
+ }
+ if (delta + (1 << 25) < 2 << 25)
+ write_insn<big_endian>(p, b | (delta & 0x3fffffc));
+ else
+ {
+ write_insn<big_endian>(p, mtctr_12);
+ p += 4;
+ write_insn<big_endian>(p, bctr);
+ }
+ }
}
- if (delta + (1 << 25) < 2 << 25)
- write_insn<big_endian>(p, b | (delta & 0x3fffffc));
else
{
- write_insn<big_endian>(p, mtctr_12);
- p += 4;
- write_insn<big_endian>(p, bctr);
+ if (bs->second.notoc_ || delta + (1 << 25) >= 2 << 25)
+ {
+ unsigned char* startp = p;
+ p = build_power10_offset<big_endian>(p, delta,
+ loc & 4, false);
+ delta -= p - startp;
+ }
+ if (delta + (1 << 25) < 2 << 25)
+ write_insn<big_endian>(p, b | (delta & 0x3fffffc));
+ else
+ {
+ write_insn<big_endian>(p, mtctr_12);
+ p += 4;
+ write_insn<big_endian>(p, bctr);
+ }
}
}
}
@@ -6194,7 +6400,11 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
Address plt_addr = pltoff + plt->address();
p = oview + cs->second.off_;
- this->build_tls_opt_head(&p, cs);
+ if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ {
+ bool save_lr = cs->second.r2save_ && !cs->second.localentry0_;
+ this->build_tls_opt_head(&p, save_lr);
+ }
if (cs->second.r2save_)
{
write_insn<big_endian>(p, std_2_1 + this->targ_->stk_toc());
@@ -6231,7 +6441,11 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
}
write_insn<big_endian>(p, mtctr_12);
p += 4;
- if (!this->build_tls_opt_tail(p, cs))
+ if (cs->second.r2save_
+ && !cs->second.localentry0_
+ && this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ this->build_tls_opt_tail(p);
+ else
write_insn<big_endian>(p, bctr);
}
}
@@ -6282,8 +6496,12 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
}
p = oview + cs->second.off_;
- if (this->build_tls_opt_head(&p, cs))
- use_fake_dep = thread_safe;
+ if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ {
+ bool save_lr = cs->second.r2save_ && !cs->second.localentry0_;
+ this->build_tls_opt_head(&p, save_lr);
+ use_fake_dep = thread_safe;
+ }
if (cs->second.r2save_)
{
write_insn<big_endian>(p, std_2_1 + this->targ_->stk_toc());
@@ -6345,8 +6563,10 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
write_insn<big_endian>(p, ld_2_2 + l(off + 8));
p += 4;
}
- if (this->build_tls_opt_tail(p, cs))
- ;
+ if (cs->second.r2save_
+ && !cs->second.localentry0_
+ && this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ this->build_tls_opt_tail(p);
else if (thread_safe && !use_fake_dep)
{
write_insn<big_endian>(p, cmpldi_2_0);
@@ -6427,7 +6647,8 @@ Stub_table<size, big_endian>::do_write(Output_file* of)
plt_addr += plt->address();
p = oview + cs->second.off_;
- this->build_tls_opt_head(&p, cs);
+ if (this->targ_->is_tls_get_addr_opt(cs->first.sym_))
+ this->build_tls_opt_head(&p, false);
if (parameters->options().output_is_position_independent())
{
Address got_addr;
@@ -10088,9 +10309,16 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
elfcpp::Shdr<size, big_endian> shdr(relinfo->reloc_shdr);
size_t reloc_count = shdr.get_sh_size() / reloc_size;
if (size == 64
+ && r_type != elfcpp::R_PPC64_REL24_NOTOC)
+ value += ent->tocoff_;
+ if (size == 64
&& ent->r2save_
&& r_type == elfcpp::R_PPC64_REL24_NOTOC)
- value += 4;
+ {
+ if (!(target->power10_stubs()
+ && target->power10_stubs_auto()))
+ value += 4;
+ }
else if (size == 64
&& ent->r2save_
&& relnum < reloc_count - 1)
@@ -10707,8 +10935,14 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
value = (value - target->savres_section()->address()
+ stub_table->branch_size());
else
- value = (stub_table->stub_address() + stub_table->plt_size()
- + ent->off_);
+ {
+ value = (stub_table->stub_address()
+ + stub_table->plt_size()
+ + ent->off_);
+ if (size == 64
+ && r_type != elfcpp::R_PPC64_REL24_NOTOC)
+ value += ent->tocoff_;
+ }
has_stub_value = true;
}
}
generated by cgit v1.1 at 2024-11-23 05:06:49 +0000