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-rw-r--r--deps/v8/src/gdb-jit.cc128
-rw-r--r--deps/v8/src/mark-compact.cc12
2 files changed, 76 insertions, 64 deletions
diff --git a/deps/v8/src/gdb-jit.cc b/deps/v8/src/gdb-jit.cc
index d3cd44707..dde6bbdaa 100644
--- a/deps/v8/src/gdb-jit.cc
+++ b/deps/v8/src/gdb-jit.cc
@@ -31,11 +31,13 @@
#include "bootstrapper.h"
#include "compiler.h"
+#include "frames.h"
+#include "frames-inl.h"
#include "global-handles.h"
#include "messages.h"
-#include "platform.h"
#include "natives.h"
-#include "scopeinfo.h"
+#include "platform.h"
+#include "scopes.h"
namespace v8 {
namespace internal {
@@ -194,7 +196,7 @@ class DebugSectionBase : public ZoneObject {
virtual void WriteBody(Writer::Slot<THeader> header, Writer* writer) {
uintptr_t start = writer->position();
- if (WriteBody(writer)) {
+ if (WriteBodyInternal(writer)) {
uintptr_t end = writer->position();
header->offset = start;
#if defined(__MACH_O)
@@ -204,7 +206,7 @@ class DebugSectionBase : public ZoneObject {
}
}
- virtual bool WriteBody(Writer* writer) {
+ virtual bool WriteBodyInternal(Writer* writer) {
return false;
}
@@ -340,14 +342,14 @@ class ELFSection : public DebugSectionBase<ELFSectionHeader> {
virtual void WriteBody(Writer::Slot<Header> header, Writer* w) {
uintptr_t start = w->position();
- if (WriteBody(w)) {
+ if (WriteBodyInternal(w)) {
uintptr_t end = w->position();
header->offset = start;
header->size = end - start;
}
}
- virtual bool WriteBody(Writer* w) {
+ virtual bool WriteBodyInternal(Writer* w) {
return false;
}
@@ -627,9 +629,9 @@ class MachO BASE_EMBEDDED {
#if defined(__ELF)
class ELF BASE_EMBEDDED {
public:
- ELF() : sections_(6) {
- sections_.Add(new ELFSection("", ELFSection::TYPE_NULL, 0));
- sections_.Add(new StringTable(".shstrtab"));
+ ELF(Zone* zone) : sections_(6, zone) {
+ sections_.Add(new(zone) ELFSection("", ELFSection::TYPE_NULL, 0), zone);
+ sections_.Add(new(zone) StringTable(".shstrtab"), zone);
}
void Write(Writer* w) {
@@ -642,8 +644,8 @@ class ELF BASE_EMBEDDED {
return sections_[index];
}
- uint32_t AddSection(ELFSection* section) {
- sections_.Add(section);
+ uint32_t AddSection(ELFSection* section, Zone* zone) {
+ sections_.Add(section, zone);
section->set_index(sections_.length() - 1);
return sections_.length() - 1;
}
@@ -675,7 +677,7 @@ class ELF BASE_EMBEDDED {
{ 0x7f, 'E', 'L', 'F', 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0};
#elif defined(V8_TARGET_ARCH_X64)
const uint8_t ident[16] =
- { 0x7f, 'E', 'L', 'F', 2, 1, 1, 0, 0, 0 , 0, 0, 0, 0, 0, 0};
+ { 0x7f, 'E', 'L', 'F', 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0};
#else
#error Unsupported target architecture.
#endif
@@ -852,10 +854,10 @@ class ELFSymbol BASE_EMBEDDED {
class ELFSymbolTable : public ELFSection {
public:
- explicit ELFSymbolTable(const char* name)
+ ELFSymbolTable(const char* name, Zone* zone)
: ELFSection(name, TYPE_SYMTAB, sizeof(uintptr_t)),
- locals_(1),
- globals_(1) {
+ locals_(1, zone),
+ globals_(1, zone) {
}
virtual void WriteBody(Writer::Slot<Header> header, Writer* w) {
@@ -883,11 +885,11 @@ class ELFSymbolTable : public ELFSection {
strtab->DetachWriter();
}
- void Add(const ELFSymbol& symbol) {
+ void Add(const ELFSymbol& symbol, Zone* zone) {
if (symbol.binding() == ELFSymbol::BIND_LOCAL) {
- locals_.Add(symbol);
+ locals_.Add(symbol, zone);
} else {
- globals_.Add(symbol);
+ globals_.Add(symbol, zone);
}
}
@@ -1019,26 +1021,29 @@ class CodeDescription BASE_EMBEDDED {
static void CreateSymbolsTable(CodeDescription* desc,
ELF* elf,
int text_section_index) {
- ELFSymbolTable* symtab = new ELFSymbolTable(".symtab");
- StringTable* strtab = new StringTable(".strtab");
+ Zone* zone = desc->info()->zone();
+ ELFSymbolTable* symtab = new(zone) ELFSymbolTable(".symtab", zone);
+ StringTable* strtab = new(zone) StringTable(".strtab");
// Symbol table should be followed by the linked string table.
- elf->AddSection(symtab);
- elf->AddSection(strtab);
+ elf->AddSection(symtab, zone);
+ elf->AddSection(strtab, zone);
symtab->Add(ELFSymbol("V8 Code",
0,
0,
ELFSymbol::BIND_LOCAL,
ELFSymbol::TYPE_FILE,
- ELFSection::INDEX_ABSOLUTE));
+ ELFSection::INDEX_ABSOLUTE),
+ zone);
symtab->Add(ELFSymbol(desc->name(),
0,
desc->CodeSize(),
ELFSymbol::BIND_GLOBAL,
ELFSymbol::TYPE_FUNC,
- text_section_index));
+ text_section_index),
+ zone);
}
#endif // defined(__ELF)
@@ -1074,7 +1079,7 @@ class DebugInfoSection : public DebugSection {
DW_ATE_SIGNED = 0x5
};
- bool WriteBody(Writer* w) {
+ bool WriteBodyInternal(Writer* w) {
uintptr_t cu_start = w->position();
Writer::Slot<uint32_t> size = w->CreateSlotHere<uint32_t>();
uintptr_t start = w->position();
@@ -1094,8 +1099,7 @@ class DebugInfoSection : public DebugSection {
w->WriteString("v8value");
if (desc_->IsInfoAvailable()) {
- CompilationInfo* info = desc_->info();
- ScopeInfo<FreeStoreAllocationPolicy> scope_info(info->scope());
+ Scope* scope = desc_->info()->scope();
w->WriteULEB128(2);
w->WriteString(desc_->name());
w->Write<intptr_t>(desc_->CodeStart());
@@ -1106,23 +1110,27 @@ class DebugInfoSection : public DebugSection {
w->Write<uint8_t>(DW_OP_reg5); // The frame pointer's here on ia32
#elif defined(V8_TARGET_ARCH_X64)
w->Write<uint8_t>(DW_OP_reg6); // and here on x64.
+#elif defined(V8_TARGET_ARCH_ARM)
+ UNIMPLEMENTED();
+#elif defined(V8_TARGET_ARCH_MIPS)
+ UNIMPLEMENTED();
#else
#error Unsupported target architecture.
#endif
fb_block_size.set(static_cast<uint32_t>(w->position() - fb_block_start));
- int params = scope_info.number_of_parameters();
- int slots = scope_info.number_of_stack_slots();
- int context_slots = scope_info.number_of_context_slots();
+ int params = scope->num_parameters();
+ int slots = scope->num_stack_slots();
+ int context_slots = scope->ContextLocalCount();
// The real slot ID is internal_slots + context_slot_id.
int internal_slots = Context::MIN_CONTEXT_SLOTS;
- int locals = scope_info.LocalCount();
+ int locals = scope->StackLocalCount();
int current_abbreviation = 4;
for (int param = 0; param < params; ++param) {
w->WriteULEB128(current_abbreviation++);
w->WriteString(
- *scope_info.ParameterName(param)->ToCString(DISALLOW_NULLS));
+ *scope->parameter(param)->name()->ToCString(DISALLOW_NULLS));
w->Write<uint32_t>(ty_offset);
Writer::Slot<uint32_t> block_size = w->CreateSlotHere<uint32_t>();
uintptr_t block_start = w->position();
@@ -1148,7 +1156,7 @@ class DebugInfoSection : public DebugSection {
ASSERT(Context::CLOSURE_INDEX == 0);
ASSERT(Context::PREVIOUS_INDEX == 1);
ASSERT(Context::EXTENSION_INDEX == 2);
- ASSERT(Context::GLOBAL_INDEX == 3);
+ ASSERT(Context::GLOBAL_OBJECT_INDEX == 3);
w->WriteULEB128(current_abbreviation++);
w->WriteString(".closure");
w->WriteULEB128(current_abbreviation++);
@@ -1167,10 +1175,13 @@ class DebugInfoSection : public DebugSection {
w->WriteString(builder.Finalize());
}
+ ZoneList<Variable*> stack_locals(locals, scope->zone());
+ ZoneList<Variable*> context_locals(context_slots, scope->zone());
+ scope->CollectStackAndContextLocals(&stack_locals, &context_locals);
for (int local = 0; local < locals; ++local) {
w->WriteULEB128(current_abbreviation++);
w->WriteString(
- *scope_info.LocalName(local)->ToCString(DISALLOW_NULLS));
+ *stack_locals[local]->name()->ToCString(DISALLOW_NULLS));
w->Write<uint32_t>(ty_offset);
Writer::Slot<uint32_t> block_size = w->CreateSlotHere<uint32_t>();
uintptr_t block_start = w->position();
@@ -1287,7 +1298,7 @@ class DebugAbbrevSection : public DebugSection {
w->WriteULEB128(0);
}
- bool WriteBody(Writer* w) {
+ bool WriteBodyInternal(Writer* w) {
int current_abbreviation = 1;
bool extra_info = desc_->IsInfoAvailable();
ASSERT(desc_->IsLineInfoAvailable());
@@ -1306,14 +1317,13 @@ class DebugAbbrevSection : public DebugSection {
w->WriteULEB128(0);
if (extra_info) {
- CompilationInfo* info = desc_->info();
- ScopeInfo<FreeStoreAllocationPolicy> scope_info(info->scope());
- int params = scope_info.number_of_parameters();
- int slots = scope_info.number_of_stack_slots();
- int context_slots = scope_info.number_of_context_slots();
+ Scope* scope = desc_->info()->scope();
+ int params = scope->num_parameters();
+ int slots = scope->num_stack_slots();
+ int context_slots = scope->ContextLocalCount();
// The real slot ID is internal_slots + context_slot_id.
int internal_slots = Context::MIN_CONTEXT_SLOTS;
- int locals = scope_info.LocalCount();
+ int locals = scope->StackLocalCount();
int total_children =
params + slots + context_slots + internal_slots + locals + 2;
@@ -1418,7 +1428,7 @@ class DebugLineSection : public DebugSection {
DW_LNE_DEFINE_FILE = 3
};
- bool WriteBody(Writer* w) {
+ bool WriteBodyInternal(Writer* w) {
// Write prologue.
Writer::Slot<uint32_t> total_length = w->CreateSlotHere<uint32_t>();
uintptr_t start = w->position();
@@ -1558,7 +1568,7 @@ class DebugLineSection : public DebugSection {
class UnwindInfoSection : public DebugSection {
public:
explicit UnwindInfoSection(CodeDescription* desc);
- virtual bool WriteBody(Writer* w);
+ virtual bool WriteBodyInternal(Writer* w);
int WriteCIE(Writer* w);
void WriteFDE(Writer* w, int);
@@ -1770,7 +1780,7 @@ void UnwindInfoSection::WriteFDEStateAfterRBPPop(Writer* w) {
}
-bool UnwindInfoSection::WriteBody(Writer* w) {
+bool UnwindInfoSection::WriteBodyInternal(Writer* w) {
uint32_t cie_position = WriteCIE(w);
WriteFDE(w, cie_position);
return true;
@@ -1780,13 +1790,14 @@ bool UnwindInfoSection::WriteBody(Writer* w) {
#endif // V8_TARGET_ARCH_X64
static void CreateDWARFSections(CodeDescription* desc, DebugObject* obj) {
+ Zone* zone = desc->info()->zone();
if (desc->IsLineInfoAvailable()) {
- obj->AddSection(new DebugInfoSection(desc));
- obj->AddSection(new DebugAbbrevSection(desc));
- obj->AddSection(new DebugLineSection(desc));
+ obj->AddSection(new(zone) DebugInfoSection(desc), zone);
+ obj->AddSection(new(zone) DebugAbbrevSection(desc), zone);
+ obj->AddSection(new(zone) DebugLineSection(desc), zone);
}
#ifdef V8_TARGET_ARCH_X64
- obj->AddSection(new UnwindInfoSection(desc));
+ obj->AddSection(new(zone) UnwindInfoSection(desc), zone);
#endif
}
@@ -1905,7 +1916,8 @@ static void UnregisterCodeEntry(JITCodeEntry* entry) {
static JITCodeEntry* CreateELFObject(CodeDescription* desc) {
- ZoneScope zone_scope(Isolate::Current(), DELETE_ON_EXIT);
+ Zone* zone = desc->info()->zone();
+ ZoneScope zone_scope(zone, DELETE_ON_EXIT);
#ifdef __MACH_O
MachO mach_o;
Writer w(&mach_o);
@@ -1918,17 +1930,19 @@ static JITCodeEntry* CreateELFObject(CodeDescription* desc) {
mach_o.Write(&w, desc->CodeStart(), desc->CodeSize());
#else
- ELF elf;
+ ELF elf(zone);
Writer w(&elf);
int text_section_index = elf.AddSection(
- new FullHeaderELFSection(".text",
- ELFSection::TYPE_NOBITS,
- kCodeAlignment,
- desc->CodeStart(),
- 0,
- desc->CodeSize(),
- ELFSection::FLAG_ALLOC | ELFSection::FLAG_EXEC));
+ new(zone) FullHeaderELFSection(
+ ".text",
+ ELFSection::TYPE_NOBITS,
+ kCodeAlignment,
+ desc->CodeStart(),
+ 0,
+ desc->CodeSize(),
+ ELFSection::FLAG_ALLOC | ELFSection::FLAG_EXEC),
+ zone);
CreateSymbolsTable(desc, &elf, text_section_index);
diff --git a/deps/v8/src/mark-compact.cc b/deps/v8/src/mark-compact.cc
index df4739ea0..7d8c09f3a 100644
--- a/deps/v8/src/mark-compact.cc
+++ b/deps/v8/src/mark-compact.cc
@@ -340,6 +340,11 @@ bool MarkCompactCollector::StartCompaction(CompactionMode mode) {
if (!compacting_) {
ASSERT(evacuation_candidates_.length() == 0);
+#ifdef ENABLE_GDB_JIT_INTERFACE
+ // If GDBJIT interface is active disable compaction.
+ if (FLAG_gdbjit) return false;
+#endif
+
CollectEvacuationCandidates(heap()->old_pointer_space());
CollectEvacuationCandidates(heap()->old_data_space());
@@ -777,13 +782,6 @@ void MarkCompactCollector::Prepare(GCTracer* tracer) {
ASSERT(!FLAG_never_compact || !FLAG_always_compact);
-#ifdef ENABLE_GDB_JIT_INTERFACE
- if (FLAG_gdbjit) {
- // If GDBJIT interface is active disable compaction.
- compacting_collection_ = false;
- }
-#endif
-
// Clear marking bits if incremental marking is aborted.
if (was_marked_incrementally_ && abort_incremental_marking_) {
heap()->incremental_marking()->Abort();
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