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// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "src/external-reference-table.h"
#include "src/accessors.h"
#include "src/counters.h"
#include "src/external-reference.h"
#include "src/ic/stub-cache.h"
#if defined(DEBUG) && defined(V8_OS_LINUX) && !defined(V8_OS_ANDROID)
#define SYMBOLIZE_FUNCTION
#include <execinfo.h>
#include <vector>
#endif // DEBUG && V8_OS_LINUX && !V8_OS_ANDROID
namespace v8 {
namespace internal {
// Forward declarations for C++ builtins.
#define FORWARD_DECLARE(Name) \
Object* Builtin_##Name(int argc, Object** args, Isolate* isolate);
BUILTIN_LIST_C(FORWARD_DECLARE)
#undef FORWARD_DECLARE
void ExternalReferenceTable::Init(Isolate* isolate) {
int index = 0;
// kNullAddress is preserved through serialization/deserialization.
Add(kNullAddress, "nullptr", &index);
AddReferences(isolate, &index);
AddBuiltins(&index);
AddRuntimeFunctions(&index);
AddIsolateAddresses(isolate, &index);
AddAccessors(&index);
AddStubCache(isolate, &index);
is_initialized_ = static_cast<uint32_t>(true);
USE(unused_padding_);
CHECK_EQ(kSize, index);
}
const char* ExternalReferenceTable::ResolveSymbol(void* address) {
#ifdef SYMBOLIZE_FUNCTION
char** names = backtrace_symbols(&address, 1);
const char* name = names[0];
// The array of names is malloc'ed. However, each name string is static
// and do not need to be freed.
free(names);
return name;
#else
return "<unresolved>";
#endif // SYMBOLIZE_FUNCTION
}
void ExternalReferenceTable::Add(Address address, const char* name,
int* index) {
refs_[(*index)++] = {address, name};
}
void ExternalReferenceTable::AddReferences(Isolate* isolate, int* index) {
CHECK_EQ(kSpecialReferenceCount, *index);
#define ADD_EXTERNAL_REFERENCE(name, desc) \
Add(ExternalReference::name().address(), desc, index);
EXTERNAL_REFERENCE_LIST(ADD_EXTERNAL_REFERENCE)
#undef ADD_EXTERNAL_REFERENCE
#define ADD_EXTERNAL_REFERENCE(name, desc) \
Add(ExternalReference::name(isolate).address(), desc, index);
EXTERNAL_REFERENCE_LIST_WITH_ISOLATE(ADD_EXTERNAL_REFERENCE)
#undef ADD_EXTERNAL_REFERENCE
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount, *index);
}
void ExternalReferenceTable::AddBuiltins(int* index) {
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount, *index);
struct CBuiltinEntry {
Address address;
const char* name;
};
static const CBuiltinEntry c_builtins[] = {
#define DEF_ENTRY(Name, ...) {FUNCTION_ADDR(&Builtin_##Name), "Builtin_" #Name},
BUILTIN_LIST_C(DEF_ENTRY)
#undef DEF_ENTRY
};
for (unsigned i = 0; i < arraysize(c_builtins); ++i) {
Add(ExternalReference::Create(c_builtins[i].address).address(),
c_builtins[i].name, index);
}
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount,
*index);
}
void ExternalReferenceTable::AddRuntimeFunctions(int* index) {
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount,
*index);
struct RuntimeEntry {
Runtime::FunctionId id;
const char* name;
};
static const RuntimeEntry runtime_functions[] = {
#define RUNTIME_ENTRY(name, i1, i2) {Runtime::k##name, "Runtime::" #name},
FOR_EACH_INTRINSIC(RUNTIME_ENTRY)
#undef RUNTIME_ENTRY
};
for (unsigned i = 0; i < arraysize(runtime_functions); ++i) {
ExternalReference ref = ExternalReference::Create(runtime_functions[i].id);
Add(ref.address(), runtime_functions[i].name, index);
}
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount,
*index);
}
void ExternalReferenceTable::AddIsolateAddresses(Isolate* isolate, int* index) {
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount,
*index);
// Top addresses
static const char* address_names[] = {
#define BUILD_NAME_LITERAL(Name, name) "Isolate::" #name "_address",
FOR_EACH_ISOLATE_ADDRESS_NAME(BUILD_NAME_LITERAL) nullptr
#undef BUILD_NAME_LITERAL
};
for (int i = 0; i < IsolateAddressId::kIsolateAddressCount; ++i) {
Add(isolate->get_address_from_id(static_cast<IsolateAddressId>(i)),
address_names[i], index);
}
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount +
kIsolateAddressReferenceCount,
*index);
}
void ExternalReferenceTable::AddAccessors(int* index) {
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount +
kIsolateAddressReferenceCount,
*index);
// Accessors
struct AccessorRefTable {
Address address;
const char* name;
};
static const AccessorRefTable getters[] = {
#define ACCESSOR_INFO_DECLARATION(_, accessor_name, AccessorName, ...) \
{FUNCTION_ADDR(&Accessors::AccessorName##Getter), \
"Accessors::" #AccessorName "Getter"}, /* NOLINT(whitespace/indent) */
ACCESSOR_INFO_LIST_GENERATOR(ACCESSOR_INFO_DECLARATION, /* not used */)
#undef ACCESSOR_INFO_DECLARATION
};
static const AccessorRefTable setters[] = {
#define ACCESSOR_SETTER_DECLARATION(name) \
{ FUNCTION_ADDR(&Accessors::name), "Accessors::" #name},
ACCESSOR_SETTER_LIST(ACCESSOR_SETTER_DECLARATION)
#undef ACCESSOR_SETTER_DECLARATION
};
for (unsigned i = 0; i < arraysize(getters); ++i) {
Add(getters[i].address, getters[i].name, index);
}
for (unsigned i = 0; i < arraysize(setters); ++i) {
Add(setters[i].address, setters[i].name, index);
}
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount +
kIsolateAddressReferenceCount + kAccessorReferenceCount,
*index);
}
void ExternalReferenceTable::AddStubCache(Isolate* isolate, int* index) {
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount +
kIsolateAddressReferenceCount + kAccessorReferenceCount,
*index);
StubCache* load_stub_cache = isolate->load_stub_cache();
// Stub cache tables
Add(load_stub_cache->key_reference(StubCache::kPrimary).address(),
"Load StubCache::primary_->key", index);
Add(load_stub_cache->value_reference(StubCache::kPrimary).address(),
"Load StubCache::primary_->value", index);
Add(load_stub_cache->map_reference(StubCache::kPrimary).address(),
"Load StubCache::primary_->map", index);
Add(load_stub_cache->key_reference(StubCache::kSecondary).address(),
"Load StubCache::secondary_->key", index);
Add(load_stub_cache->value_reference(StubCache::kSecondary).address(),
"Load StubCache::secondary_->value", index);
Add(load_stub_cache->map_reference(StubCache::kSecondary).address(),
"Load StubCache::secondary_->map", index);
StubCache* store_stub_cache = isolate->store_stub_cache();
// Stub cache tables
Add(store_stub_cache->key_reference(StubCache::kPrimary).address(),
"Store StubCache::primary_->key", index);
Add(store_stub_cache->value_reference(StubCache::kPrimary).address(),
"Store StubCache::primary_->value", index);
Add(store_stub_cache->map_reference(StubCache::kPrimary).address(),
"Store StubCache::primary_->map", index);
Add(store_stub_cache->key_reference(StubCache::kSecondary).address(),
"Store StubCache::secondary_->key", index);
Add(store_stub_cache->value_reference(StubCache::kSecondary).address(),
"Store StubCache::secondary_->value", index);
Add(store_stub_cache->map_reference(StubCache::kSecondary).address(),
"Store StubCache::secondary_->map", index);
CHECK_EQ(kSpecialReferenceCount + kExternalReferenceCount +
kBuiltinsReferenceCount + kRuntimeReferenceCount +
kIsolateAddressReferenceCount + kAccessorReferenceCount +
kStubCacheReferenceCount,
*index);
CHECK_EQ(kSize, *index);
}
} // namespace internal
} // namespace v8
#undef SYMBOLIZE_FUNCTION
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