summaryrefslogtreecommitdiff
path: root/deps/v8/src/ia32/assembler-ia32-inl.h
diff options
context:
space:
mode:
Diffstat (limited to 'deps/v8/src/ia32/assembler-ia32-inl.h')
-rw-r--r--deps/v8/src/ia32/assembler-ia32-inl.h152
1 files changed, 92 insertions, 60 deletions
diff --git a/deps/v8/src/ia32/assembler-ia32-inl.h b/deps/v8/src/ia32/assembler-ia32-inl.h
index 97aeeae72..c7ec6d991 100644
--- a/deps/v8/src/ia32/assembler-ia32-inl.h
+++ b/deps/v8/src/ia32/assembler-ia32-inl.h
@@ -37,60 +37,63 @@
#ifndef V8_IA32_ASSEMBLER_IA32_INL_H_
#define V8_IA32_ASSEMBLER_IA32_INL_H_
-#include "ia32/assembler-ia32.h"
+#include "src/ia32/assembler-ia32.h"
-#include "cpu.h"
-#include "debug.h"
+#include "src/assembler.h"
+#include "src/debug.h"
namespace v8 {
namespace internal {
+bool CpuFeatures::SupportsCrankshaft() { return true; }
+
static const byte kCallOpcode = 0xE8;
static const int kNoCodeAgeSequenceLength = 5;
// The modes possibly affected by apply must be in kApplyMask.
-void RelocInfo::apply(intptr_t delta) {
+void RelocInfo::apply(intptr_t delta, ICacheFlushMode icache_flush_mode) {
+ bool flush_icache = icache_flush_mode != SKIP_ICACHE_FLUSH;
if (IsRuntimeEntry(rmode_) || IsCodeTarget(rmode_)) {
int32_t* p = reinterpret_cast<int32_t*>(pc_);
*p -= delta; // Relocate entry.
- CPU::FlushICache(p, sizeof(uint32_t));
+ if (flush_icache) CpuFeatures::FlushICache(p, sizeof(uint32_t));
} else if (rmode_ == CODE_AGE_SEQUENCE) {
if (*pc_ == kCallOpcode) {
int32_t* p = reinterpret_cast<int32_t*>(pc_ + 1);
*p -= delta; // Relocate entry.
- CPU::FlushICache(p, sizeof(uint32_t));
+ if (flush_icache) CpuFeatures::FlushICache(p, sizeof(uint32_t));
}
} else if (rmode_ == JS_RETURN && IsPatchedReturnSequence()) {
// Special handling of js_return when a break point is set (call
// instruction has been inserted).
int32_t* p = reinterpret_cast<int32_t*>(pc_ + 1);
*p -= delta; // Relocate entry.
- CPU::FlushICache(p, sizeof(uint32_t));
+ if (flush_icache) CpuFeatures::FlushICache(p, sizeof(uint32_t));
} else if (rmode_ == DEBUG_BREAK_SLOT && IsPatchedDebugBreakSlotSequence()) {
// Special handling of a debug break slot when a break point is set (call
// instruction has been inserted).
int32_t* p = reinterpret_cast<int32_t*>(pc_ + 1);
*p -= delta; // Relocate entry.
- CPU::FlushICache(p, sizeof(uint32_t));
+ if (flush_icache) CpuFeatures::FlushICache(p, sizeof(uint32_t));
} else if (IsInternalReference(rmode_)) {
// absolute code pointer inside code object moves with the code object.
int32_t* p = reinterpret_cast<int32_t*>(pc_);
*p += delta; // Relocate entry.
- CPU::FlushICache(p, sizeof(uint32_t));
+ if (flush_icache) CpuFeatures::FlushICache(p, sizeof(uint32_t));
}
}
Address RelocInfo::target_address() {
- ASSERT(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_));
+ DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_));
return Assembler::target_address_at(pc_, host_);
}
Address RelocInfo::target_address_address() {
- ASSERT(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)
+ DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_)
|| rmode_ == EMBEDDED_OBJECT
|| rmode_ == EXTERNAL_REFERENCE);
return reinterpret_cast<Address>(pc_);
@@ -108,10 +111,13 @@ int RelocInfo::target_address_size() {
}
-void RelocInfo::set_target_address(Address target, WriteBarrierMode mode) {
- Assembler::set_target_address_at(pc_, host_, target);
- ASSERT(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_));
- if (mode == UPDATE_WRITE_BARRIER && host() != NULL && IsCodeTarget(rmode_)) {
+void RelocInfo::set_target_address(Address target,
+ WriteBarrierMode write_barrier_mode,
+ ICacheFlushMode icache_flush_mode) {
+ Assembler::set_target_address_at(pc_, host_, target, icache_flush_mode);
+ DCHECK(IsCodeTarget(rmode_) || IsRuntimeEntry(rmode_));
+ if (write_barrier_mode == UPDATE_WRITE_BARRIER && host() != NULL &&
+ IsCodeTarget(rmode_)) {
Object* target_code = Code::GetCodeFromTargetAddress(target);
host()->GetHeap()->incremental_marking()->RecordWriteIntoCode(
host(), this, HeapObject::cast(target_code));
@@ -120,23 +126,26 @@ void RelocInfo::set_target_address(Address target, WriteBarrierMode mode) {
Object* RelocInfo::target_object() {
- ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
+ DCHECK(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
return Memory::Object_at(pc_);
}
Handle<Object> RelocInfo::target_object_handle(Assembler* origin) {
- ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
+ DCHECK(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
return Memory::Object_Handle_at(pc_);
}
-void RelocInfo::set_target_object(Object* target, WriteBarrierMode mode) {
- ASSERT(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
- ASSERT(!target->IsConsString());
+void RelocInfo::set_target_object(Object* target,
+ WriteBarrierMode write_barrier_mode,
+ ICacheFlushMode icache_flush_mode) {
+ DCHECK(IsCodeTarget(rmode_) || rmode_ == EMBEDDED_OBJECT);
Memory::Object_at(pc_) = target;
- CPU::FlushICache(pc_, sizeof(Address));
- if (mode == UPDATE_WRITE_BARRIER &&
+ if (icache_flush_mode != SKIP_ICACHE_FLUSH) {
+ CpuFeatures::FlushICache(pc_, sizeof(Address));
+ }
+ if (write_barrier_mode == UPDATE_WRITE_BARRIER &&
host() != NULL &&
target->IsHeapObject()) {
host()->GetHeap()->incremental_marking()->RecordWrite(
@@ -146,43 +155,50 @@ void RelocInfo::set_target_object(Object* target, WriteBarrierMode mode) {
Address RelocInfo::target_reference() {
- ASSERT(rmode_ == RelocInfo::EXTERNAL_REFERENCE);
+ DCHECK(rmode_ == RelocInfo::EXTERNAL_REFERENCE);
return Memory::Address_at(pc_);
}
Address RelocInfo::target_runtime_entry(Assembler* origin) {
- ASSERT(IsRuntimeEntry(rmode_));
+ DCHECK(IsRuntimeEntry(rmode_));
return reinterpret_cast<Address>(*reinterpret_cast<int32_t*>(pc_));
}
void RelocInfo::set_target_runtime_entry(Address target,
- WriteBarrierMode mode) {
- ASSERT(IsRuntimeEntry(rmode_));
- if (target_address() != target) set_target_address(target, mode);
+ WriteBarrierMode write_barrier_mode,
+ ICacheFlushMode icache_flush_mode) {
+ DCHECK(IsRuntimeEntry(rmode_));
+ if (target_address() != target) {
+ set_target_address(target, write_barrier_mode, icache_flush_mode);
+ }
}
Handle<Cell> RelocInfo::target_cell_handle() {
- ASSERT(rmode_ == RelocInfo::CELL);
+ DCHECK(rmode_ == RelocInfo::CELL);
Address address = Memory::Address_at(pc_);
return Handle<Cell>(reinterpret_cast<Cell**>(address));
}
Cell* RelocInfo::target_cell() {
- ASSERT(rmode_ == RelocInfo::CELL);
+ DCHECK(rmode_ == RelocInfo::CELL);
return Cell::FromValueAddress(Memory::Address_at(pc_));
}
-void RelocInfo::set_target_cell(Cell* cell, WriteBarrierMode mode) {
- ASSERT(rmode_ == RelocInfo::CELL);
+void RelocInfo::set_target_cell(Cell* cell,
+ WriteBarrierMode write_barrier_mode,
+ ICacheFlushMode icache_flush_mode) {
+ DCHECK(rmode_ == RelocInfo::CELL);
Address address = cell->address() + Cell::kValueOffset;
Memory::Address_at(pc_) = address;
- CPU::FlushICache(pc_, sizeof(Address));
- if (mode == UPDATE_WRITE_BARRIER && host() != NULL) {
+ if (icache_flush_mode != SKIP_ICACHE_FLUSH) {
+ CpuFeatures::FlushICache(pc_, sizeof(Address));
+ }
+ if (write_barrier_mode == UPDATE_WRITE_BARRIER && host() != NULL) {
// TODO(1550) We are passing NULL as a slot because cell can never be on
// evacuation candidate.
host()->GetHeap()->incremental_marking()->RecordWrite(
@@ -192,36 +208,38 @@ void RelocInfo::set_target_cell(Cell* cell, WriteBarrierMode mode) {
Handle<Object> RelocInfo::code_age_stub_handle(Assembler* origin) {
- ASSERT(rmode_ == RelocInfo::CODE_AGE_SEQUENCE);
- ASSERT(*pc_ == kCallOpcode);
+ DCHECK(rmode_ == RelocInfo::CODE_AGE_SEQUENCE);
+ DCHECK(*pc_ == kCallOpcode);
return Memory::Object_Handle_at(pc_ + 1);
}
Code* RelocInfo::code_age_stub() {
- ASSERT(rmode_ == RelocInfo::CODE_AGE_SEQUENCE);
- ASSERT(*pc_ == kCallOpcode);
+ DCHECK(rmode_ == RelocInfo::CODE_AGE_SEQUENCE);
+ DCHECK(*pc_ == kCallOpcode);
return Code::GetCodeFromTargetAddress(
Assembler::target_address_at(pc_ + 1, host_));
}
-void RelocInfo::set_code_age_stub(Code* stub) {
- ASSERT(*pc_ == kCallOpcode);
- ASSERT(rmode_ == RelocInfo::CODE_AGE_SEQUENCE);
- Assembler::set_target_address_at(pc_ + 1, host_, stub->instruction_start());
+void RelocInfo::set_code_age_stub(Code* stub,
+ ICacheFlushMode icache_flush_mode) {
+ DCHECK(*pc_ == kCallOpcode);
+ DCHECK(rmode_ == RelocInfo::CODE_AGE_SEQUENCE);
+ Assembler::set_target_address_at(pc_ + 1, host_, stub->instruction_start(),
+ icache_flush_mode);
}
Address RelocInfo::call_address() {
- ASSERT((IsJSReturn(rmode()) && IsPatchedReturnSequence()) ||
+ DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) ||
(IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence()));
return Assembler::target_address_at(pc_ + 1, host_);
}
void RelocInfo::set_call_address(Address target) {
- ASSERT((IsJSReturn(rmode()) && IsPatchedReturnSequence()) ||
+ DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) ||
(IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence()));
Assembler::set_target_address_at(pc_ + 1, host_, target);
if (host() != NULL) {
@@ -243,7 +261,7 @@ void RelocInfo::set_call_object(Object* target) {
Object** RelocInfo::call_object_address() {
- ASSERT((IsJSReturn(rmode()) && IsPatchedReturnSequence()) ||
+ DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) ||
(IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence()));
return reinterpret_cast<Object**>(pc_ + 1);
}
@@ -275,14 +293,14 @@ void RelocInfo::Visit(Isolate* isolate, ObjectVisitor* visitor) {
RelocInfo::Mode mode = rmode();
if (mode == RelocInfo::EMBEDDED_OBJECT) {
visitor->VisitEmbeddedPointer(this);
- CPU::FlushICache(pc_, sizeof(Address));
+ CpuFeatures::FlushICache(pc_, sizeof(Address));
} else if (RelocInfo::IsCodeTarget(mode)) {
visitor->VisitCodeTarget(this);
} else if (mode == RelocInfo::CELL) {
visitor->VisitCell(this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
visitor->VisitExternalReference(this);
- CPU::FlushICache(pc_, sizeof(Address));
+ CpuFeatures::FlushICache(pc_, sizeof(Address));
} else if (RelocInfo::IsCodeAgeSequence(mode)) {
visitor->VisitCodeAgeSequence(this);
} else if (((RelocInfo::IsJSReturn(mode) &&
@@ -302,14 +320,14 @@ void RelocInfo::Visit(Heap* heap) {
RelocInfo::Mode mode = rmode();
if (mode == RelocInfo::EMBEDDED_OBJECT) {
StaticVisitor::VisitEmbeddedPointer(heap, this);
- CPU::FlushICache(pc_, sizeof(Address));
+ CpuFeatures::FlushICache(pc_, sizeof(Address));
} else if (RelocInfo::IsCodeTarget(mode)) {
StaticVisitor::VisitCodeTarget(heap, this);
} else if (mode == RelocInfo::CELL) {
StaticVisitor::VisitCell(heap, this);
} else if (mode == RelocInfo::EXTERNAL_REFERENCE) {
StaticVisitor::VisitExternalReference(this);
- CPU::FlushICache(pc_, sizeof(Address));
+ CpuFeatures::FlushICache(pc_, sizeof(Address));
} else if (RelocInfo::IsCodeAgeSequence(mode)) {
StaticVisitor::VisitCodeAgeSequence(heap, this);
} else if (heap->isolate()->debug()->has_break_points() &&
@@ -348,7 +366,7 @@ Immediate::Immediate(Handle<Object> handle) {
// Verify all Objects referred by code are NOT in new space.
Object* obj = *handle;
if (obj->IsHeapObject()) {
- ASSERT(!HeapObject::cast(obj)->GetHeap()->InNewSpace(obj));
+ DCHECK(!HeapObject::cast(obj)->GetHeap()->InNewSpace(obj));
x_ = reinterpret_cast<intptr_t>(handle.location());
rmode_ = RelocInfo::EMBEDDED_OBJECT;
} else {
@@ -381,7 +399,7 @@ void Assembler::emit(Handle<Object> handle) {
AllowDeferredHandleDereference heap_object_check;
// Verify all Objects referred by code are NOT in new space.
Object* obj = *handle;
- ASSERT(!isolate()->heap()->InNewSpace(obj));
+ DCHECK(!isolate()->heap()->InNewSpace(obj));
if (obj->IsHeapObject()) {
emit(reinterpret_cast<intptr_t>(handle.location()),
RelocInfo::EMBEDDED_OBJECT);
@@ -434,7 +452,7 @@ void Assembler::emit_code_relative_offset(Label* label) {
void Assembler::emit_w(const Immediate& x) {
- ASSERT(RelocInfo::IsNone(x.rmode_));
+ DCHECK(RelocInfo::IsNone(x.rmode_));
uint16_t value = static_cast<uint16_t>(x.x_);
reinterpret_cast<uint16_t*>(pc_)[0] = value;
pc_ += sizeof(uint16_t);
@@ -449,10 +467,13 @@ Address Assembler::target_address_at(Address pc,
void Assembler::set_target_address_at(Address pc,
ConstantPoolArray* constant_pool,
- Address target) {
+ Address target,
+ ICacheFlushMode icache_flush_mode) {
int32_t* p = reinterpret_cast<int32_t*>(pc);
*p = target - (pc + sizeof(int32_t));
- CPU::FlushICache(p, sizeof(int32_t));
+ if (icache_flush_mode != SKIP_ICACHE_FLUSH) {
+ CpuFeatures::FlushICache(p, sizeof(int32_t));
+ }
}
@@ -461,6 +482,11 @@ Address Assembler::target_address_from_return_address(Address pc) {
}
+Address Assembler::break_address_from_return_address(Address pc) {
+ return pc - Assembler::kPatchDebugBreakSlotReturnOffset;
+}
+
+
Displacement Assembler::disp_at(Label* L) {
return Displacement(long_at(L->pos()));
}
@@ -482,7 +508,7 @@ void Assembler::emit_near_disp(Label* L) {
byte disp = 0x00;
if (L->is_near_linked()) {
int offset = L->near_link_pos() - pc_offset();
- ASSERT(is_int8(offset));
+ DCHECK(is_int8(offset));
disp = static_cast<byte>(offset & 0xFF);
}
L->link_to(pc_offset(), Label::kNear);
@@ -491,30 +517,30 @@ void Assembler::emit_near_disp(Label* L) {
void Operand::set_modrm(int mod, Register rm) {
- ASSERT((mod & -4) == 0);
+ DCHECK((mod & -4) == 0);
buf_[0] = mod << 6 | rm.code();
len_ = 1;
}
void Operand::set_sib(ScaleFactor scale, Register index, Register base) {
- ASSERT(len_ == 1);
- ASSERT((scale & -4) == 0);
+ DCHECK(len_ == 1);
+ DCHECK((scale & -4) == 0);
// Use SIB with no index register only for base esp.
- ASSERT(!index.is(esp) || base.is(esp));
+ DCHECK(!index.is(esp) || base.is(esp));
buf_[1] = scale << 6 | index.code() << 3 | base.code();
len_ = 2;
}
void Operand::set_disp8(int8_t disp) {
- ASSERT(len_ == 1 || len_ == 2);
+ DCHECK(len_ == 1 || len_ == 2);
*reinterpret_cast<int8_t*>(&buf_[len_++]) = disp;
}
void Operand::set_dispr(int32_t disp, RelocInfo::Mode rmode) {
- ASSERT(len_ == 1 || len_ == 2);
+ DCHECK(len_ == 1 || len_ == 2);
int32_t* p = reinterpret_cast<int32_t*>(&buf_[len_]);
*p = disp;
len_ += sizeof(int32_t);
@@ -539,6 +565,12 @@ Operand::Operand(int32_t disp, RelocInfo::Mode rmode) {
set_dispr(disp, rmode);
}
+
+Operand::Operand(Immediate imm) {
+ // [disp/r]
+ set_modrm(0, ebp);
+ set_dispr(imm.x_, imm.rmode_);
+}
} } // namespace v8::internal
#endif // V8_IA32_ASSEMBLER_IA32_INL_H_
View Lorry Controller Status