1 // Copyright 2016 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/external-reference-table.h"
6
7 #include "src/accessors.h"
8 #include "src/assembler.h"
9 #include "src/builtins/builtins.h"
10 #include "src/counters.h"
11 #include "src/deoptimizer.h"
12 #include "src/ic/stub-cache.h"
13 #include "src/objects-inl.h"
14
15 #if defined(DEBUG) && defined(V8_OS_LINUX) && !defined(V8_OS_ANDROID)
16 #define SYMBOLIZE_FUNCTION
17 #include <execinfo.h>
18 #endif // DEBUG && V8_OS_LINUX && !V8_OS_ANDROID
19
20 namespace v8 {
21 namespace internal {
22
23 // Forward declarations for C++ builtins.
24 #define FORWARD_DECLARE(Name) \
25 Object* Builtin_##Name(int argc, Object** args, Isolate* isolate);
BUILTIN_LIST_C(FORWARD_DECLARE)26 BUILTIN_LIST_C(FORWARD_DECLARE)
27 #undef FORWARD_DECLARE
28
29 ExternalReferenceTable* ExternalReferenceTable::instance(Isolate* isolate) {
30 ExternalReferenceTable* external_reference_table =
31 isolate->external_reference_table();
32 if (external_reference_table == NULL) {
33 external_reference_table = new ExternalReferenceTable(isolate);
34 isolate->set_external_reference_table(external_reference_table);
35 }
36 return external_reference_table;
37 }
38
ExternalReferenceTable(Isolate * isolate)39 ExternalReferenceTable::ExternalReferenceTable(Isolate* isolate) {
40 // nullptr is preserved through serialization/deserialization.
41 Add(nullptr, "nullptr");
42 AddReferences(isolate);
43 AddBuiltins(isolate);
44 AddRuntimeFunctions(isolate);
45 AddIsolateAddresses(isolate);
46 AddAccessors(isolate);
47 AddStubCache(isolate);
48 AddDeoptEntries(isolate);
49 AddApiReferences(isolate);
50 }
51
52 #ifdef DEBUG
ResetCount()53 void ExternalReferenceTable::ResetCount() {
54 for (ExternalReferenceEntry& entry : refs_) entry.count = 0;
55 }
56
PrintCount()57 void ExternalReferenceTable::PrintCount() {
58 for (int i = 0; i < refs_.length(); i++) {
59 v8::base::OS::Print("index=%5d count=%5d %-60s\n", i, refs_[i].count,
60 refs_[i].name);
61 }
62 }
63 #endif // DEBUG
64
65 // static
ResolveSymbol(void * address)66 const char* ExternalReferenceTable::ResolveSymbol(void* address) {
67 #ifdef SYMBOLIZE_FUNCTION
68 return backtrace_symbols(&address, 1)[0];
69 #else
70 return "<unresolved>";
71 #endif // SYMBOLIZE_FUNCTION
72 }
73
AddReferences(Isolate * isolate)74 void ExternalReferenceTable::AddReferences(Isolate* isolate) {
75 // Miscellaneous
76 Add(ExternalReference::roots_array_start(isolate).address(),
77 "Heap::roots_array_start()");
78 Add(ExternalReference::address_of_stack_limit(isolate).address(),
79 "StackGuard::address_of_jslimit()");
80 Add(ExternalReference::address_of_real_stack_limit(isolate).address(),
81 "StackGuard::address_of_real_jslimit()");
82 Add(ExternalReference::new_space_allocation_limit_address(isolate).address(),
83 "Heap::NewSpaceAllocationLimitAddress()");
84 Add(ExternalReference::new_space_allocation_top_address(isolate).address(),
85 "Heap::NewSpaceAllocationTopAddress()");
86 Add(ExternalReference::mod_two_doubles_operation(isolate).address(),
87 "mod_two_doubles");
88 Add(ExternalReference::handle_scope_next_address(isolate).address(),
89 "HandleScope::next");
90 Add(ExternalReference::handle_scope_limit_address(isolate).address(),
91 "HandleScope::limit");
92 Add(ExternalReference::handle_scope_level_address(isolate).address(),
93 "HandleScope::level");
94 Add(ExternalReference::new_deoptimizer_function(isolate).address(),
95 "Deoptimizer::New()");
96 Add(ExternalReference::compute_output_frames_function(isolate).address(),
97 "Deoptimizer::ComputeOutputFrames()");
98 Add(ExternalReference::address_of_min_int().address(),
99 "LDoubleConstant::min_int");
100 Add(ExternalReference::address_of_one_half().address(),
101 "LDoubleConstant::one_half");
102 Add(ExternalReference::isolate_address(isolate).address(), "isolate");
103 Add(ExternalReference::interpreter_dispatch_table_address(isolate).address(),
104 "Interpreter::dispatch_table_address");
105 Add(ExternalReference::address_of_negative_infinity().address(),
106 "LDoubleConstant::negative_infinity");
107 Add(ExternalReference::power_double_double_function(isolate).address(),
108 "power_double_double_function");
109 Add(ExternalReference::ieee754_acos_function(isolate).address(),
110 "base::ieee754::acos");
111 Add(ExternalReference::ieee754_acosh_function(isolate).address(),
112 "base::ieee754::acosh");
113 Add(ExternalReference::ieee754_asin_function(isolate).address(),
114 "base::ieee754::asin");
115 Add(ExternalReference::ieee754_asinh_function(isolate).address(),
116 "base::ieee754::asinh");
117 Add(ExternalReference::ieee754_atan_function(isolate).address(),
118 "base::ieee754::atan");
119 Add(ExternalReference::ieee754_atanh_function(isolate).address(),
120 "base::ieee754::atanh");
121 Add(ExternalReference::ieee754_atan2_function(isolate).address(),
122 "base::ieee754::atan2");
123 Add(ExternalReference::ieee754_cbrt_function(isolate).address(),
124 "base::ieee754::cbrt");
125 Add(ExternalReference::ieee754_cos_function(isolate).address(),
126 "base::ieee754::cos");
127 Add(ExternalReference::ieee754_cosh_function(isolate).address(),
128 "base::ieee754::cosh");
129 Add(ExternalReference::ieee754_exp_function(isolate).address(),
130 "base::ieee754::exp");
131 Add(ExternalReference::ieee754_expm1_function(isolate).address(),
132 "base::ieee754::expm1");
133 Add(ExternalReference::ieee754_log_function(isolate).address(),
134 "base::ieee754::log");
135 Add(ExternalReference::ieee754_log1p_function(isolate).address(),
136 "base::ieee754::log1p");
137 Add(ExternalReference::ieee754_log10_function(isolate).address(),
138 "base::ieee754::log10");
139 Add(ExternalReference::ieee754_log2_function(isolate).address(),
140 "base::ieee754::log2");
141 Add(ExternalReference::ieee754_sin_function(isolate).address(),
142 "base::ieee754::sin");
143 Add(ExternalReference::ieee754_sinh_function(isolate).address(),
144 "base::ieee754::sinh");
145 Add(ExternalReference::ieee754_tan_function(isolate).address(),
146 "base::ieee754::tan");
147 Add(ExternalReference::ieee754_tanh_function(isolate).address(),
148 "base::ieee754::tanh");
149 Add(ExternalReference::store_buffer_top(isolate).address(),
150 "store_buffer_top");
151 Add(ExternalReference::address_of_the_hole_nan().address(), "the_hole_nan");
152 Add(ExternalReference::get_date_field_function(isolate).address(),
153 "JSDate::GetField");
154 Add(ExternalReference::date_cache_stamp(isolate).address(),
155 "date_cache_stamp");
156 Add(ExternalReference::address_of_pending_message_obj(isolate).address(),
157 "address_of_pending_message_obj");
158 Add(ExternalReference::get_make_code_young_function(isolate).address(),
159 "Code::MakeCodeYoung");
160 Add(ExternalReference::cpu_features().address(), "cpu_features");
161 Add(ExternalReference::old_space_allocation_top_address(isolate).address(),
162 "Heap::OldSpaceAllocationTopAddress");
163 Add(ExternalReference::old_space_allocation_limit_address(isolate).address(),
164 "Heap::OldSpaceAllocationLimitAddress");
165 Add(ExternalReference::allocation_sites_list_address(isolate).address(),
166 "Heap::allocation_sites_list_address()");
167 Add(ExternalReference::address_of_uint32_bias().address(), "uint32_bias");
168 Add(ExternalReference::get_mark_code_as_executed_function(isolate).address(),
169 "Code::MarkCodeAsExecuted");
170 Add(ExternalReference::is_profiling_address(isolate).address(),
171 "Isolate::is_profiling");
172 Add(ExternalReference::scheduled_exception_address(isolate).address(),
173 "Isolate::scheduled_exception");
174 Add(ExternalReference::invoke_function_callback(isolate).address(),
175 "InvokeFunctionCallback");
176 Add(ExternalReference::invoke_accessor_getter_callback(isolate).address(),
177 "InvokeAccessorGetterCallback");
178 Add(ExternalReference::wasm_f32_trunc(isolate).address(),
179 "wasm::f32_trunc_wrapper");
180 Add(ExternalReference::wasm_f32_floor(isolate).address(),
181 "wasm::f32_floor_wrapper");
182 Add(ExternalReference::wasm_f32_ceil(isolate).address(),
183 "wasm::f32_ceil_wrapper");
184 Add(ExternalReference::wasm_f32_nearest_int(isolate).address(),
185 "wasm::f32_nearest_int_wrapper");
186 Add(ExternalReference::wasm_f64_trunc(isolate).address(),
187 "wasm::f64_trunc_wrapper");
188 Add(ExternalReference::wasm_f64_floor(isolate).address(),
189 "wasm::f64_floor_wrapper");
190 Add(ExternalReference::wasm_f64_ceil(isolate).address(),
191 "wasm::f64_ceil_wrapper");
192 Add(ExternalReference::wasm_f64_nearest_int(isolate).address(),
193 "wasm::f64_nearest_int_wrapper");
194 Add(ExternalReference::wasm_int64_to_float32(isolate).address(),
195 "wasm::int64_to_float32_wrapper");
196 Add(ExternalReference::wasm_uint64_to_float32(isolate).address(),
197 "wasm::uint64_to_float32_wrapper");
198 Add(ExternalReference::wasm_int64_to_float64(isolate).address(),
199 "wasm::int64_to_float64_wrapper");
200 Add(ExternalReference::wasm_uint64_to_float64(isolate).address(),
201 "wasm::uint64_to_float64_wrapper");
202 Add(ExternalReference::wasm_float32_to_int64(isolate).address(),
203 "wasm::float32_to_int64_wrapper");
204 Add(ExternalReference::wasm_float32_to_uint64(isolate).address(),
205 "wasm::float32_to_uint64_wrapper");
206 Add(ExternalReference::wasm_float64_to_int64(isolate).address(),
207 "wasm::float64_to_int64_wrapper");
208 Add(ExternalReference::wasm_float64_to_uint64(isolate).address(),
209 "wasm::float64_to_uint64_wrapper");
210 Add(ExternalReference::wasm_float64_pow(isolate).address(),
211 "wasm::float64_pow");
212 Add(ExternalReference::wasm_int64_div(isolate).address(), "wasm::int64_div");
213 Add(ExternalReference::wasm_int64_mod(isolate).address(), "wasm::int64_mod");
214 Add(ExternalReference::wasm_uint64_div(isolate).address(),
215 "wasm::uint64_div");
216 Add(ExternalReference::wasm_uint64_mod(isolate).address(),
217 "wasm::uint64_mod");
218 Add(ExternalReference::wasm_word32_ctz(isolate).address(),
219 "wasm::word32_ctz");
220 Add(ExternalReference::wasm_word64_ctz(isolate).address(),
221 "wasm::word64_ctz");
222 Add(ExternalReference::wasm_word32_popcnt(isolate).address(),
223 "wasm::word32_popcnt");
224 Add(ExternalReference::wasm_word64_popcnt(isolate).address(),
225 "wasm::word64_popcnt");
226 Add(ExternalReference::f64_acos_wrapper_function(isolate).address(),
227 "f64_acos_wrapper");
228 Add(ExternalReference::f64_asin_wrapper_function(isolate).address(),
229 "f64_asin_wrapper");
230 Add(ExternalReference::f64_mod_wrapper_function(isolate).address(),
231 "f64_mod_wrapper");
232 Add(ExternalReference::wasm_call_trap_callback_for_testing(isolate).address(),
233 "wasm::call_trap_callback_for_testing");
234 Add(ExternalReference::libc_memchr_function(isolate).address(),
235 "libc_memchr");
236 Add(ExternalReference::log_enter_external_function(isolate).address(),
237 "Logger::EnterExternal");
238 Add(ExternalReference::log_leave_external_function(isolate).address(),
239 "Logger::LeaveExternal");
240 Add(ExternalReference::address_of_minus_one_half().address(),
241 "double_constants.minus_one_half");
242 Add(ExternalReference::stress_deopt_count(isolate).address(),
243 "Isolate::stress_deopt_count_address()");
244 Add(ExternalReference::runtime_function_table_address(isolate).address(),
245 "Runtime::runtime_function_table_address()");
246 Add(ExternalReference::is_tail_call_elimination_enabled_address(isolate)
247 .address(),
248 "Isolate::is_tail_call_elimination_enabled_address()");
249 Add(ExternalReference::address_of_float_abs_constant().address(),
250 "float_absolute_constant");
251 Add(ExternalReference::address_of_float_neg_constant().address(),
252 "float_negate_constant");
253 Add(ExternalReference::address_of_double_abs_constant().address(),
254 "double_absolute_constant");
255 Add(ExternalReference::address_of_double_neg_constant().address(),
256 "double_negate_constant");
257 Add(ExternalReference::promise_hook_or_debug_is_active_address(isolate)
258 .address(),
259 "Isolate::promise_hook_or_debug_is_active_address()");
260
261 // Debug addresses
262 Add(ExternalReference::debug_is_active_address(isolate).address(),
263 "Debug::is_active_address()");
264 Add(ExternalReference::debug_hook_on_function_call_address(isolate).address(),
265 "Debug::hook_on_function_call_address()");
266 Add(ExternalReference::debug_last_step_action_address(isolate).address(),
267 "Debug::step_in_enabled_address()");
268 Add(ExternalReference::debug_suspended_generator_address(isolate).address(),
269 "Debug::step_suspended_generator_address()");
270 Add(ExternalReference::debug_restart_fp_address(isolate).address(),
271 "Debug::restart_fp_address()");
272
273 #ifndef V8_INTERPRETED_REGEXP
274 Add(ExternalReference::re_case_insensitive_compare_uc16(isolate).address(),
275 "NativeRegExpMacroAssembler::CaseInsensitiveCompareUC16()");
276 Add(ExternalReference::re_check_stack_guard_state(isolate).address(),
277 "RegExpMacroAssembler*::CheckStackGuardState()");
278 Add(ExternalReference::re_grow_stack(isolate).address(),
279 "NativeRegExpMacroAssembler::GrowStack()");
280 Add(ExternalReference::re_word_character_map().address(),
281 "NativeRegExpMacroAssembler::word_character_map");
282 Add(ExternalReference::address_of_regexp_stack_limit(isolate).address(),
283 "RegExpStack::limit_address()");
284 Add(ExternalReference::address_of_regexp_stack_memory_address(isolate)
285 .address(),
286 "RegExpStack::memory_address()");
287 Add(ExternalReference::address_of_regexp_stack_memory_size(isolate).address(),
288 "RegExpStack::memory_size()");
289 Add(ExternalReference::address_of_static_offsets_vector(isolate).address(),
290 "OffsetsVector::static_offsets_vector");
291 #endif // V8_INTERPRETED_REGEXP
292
293 // Runtime entries
294 Add(ExternalReference::delete_handle_scope_extensions(isolate).address(),
295 "HandleScope::DeleteExtensions");
296 Add(ExternalReference::incremental_marking_record_write_function(isolate)
297 .address(),
298 "IncrementalMarking::RecordWrite");
299 Add(ExternalReference::incremental_marking_record_write_code_entry_function(
300 isolate)
301 .address(),
302 "IncrementalMarking::RecordWriteOfCodeEntryFromCode");
303 Add(ExternalReference::store_buffer_overflow_function(isolate).address(),
304 "StoreBuffer::StoreBufferOverflow");
305 }
306
AddBuiltins(Isolate * isolate)307 void ExternalReferenceTable::AddBuiltins(Isolate* isolate) {
308 struct CBuiltinEntry {
309 Address address;
310 const char* name;
311 };
312 static const CBuiltinEntry c_builtins[] = {
313 #define DEF_ENTRY(Name, ...) {FUNCTION_ADDR(&Builtin_##Name), "Builtin_" #Name},
314 BUILTIN_LIST_C(DEF_ENTRY)
315 #undef DEF_ENTRY
316 };
317 for (unsigned i = 0; i < arraysize(c_builtins); ++i) {
318 Add(ExternalReference(c_builtins[i].address, isolate).address(),
319 c_builtins[i].name);
320 }
321
322 struct BuiltinEntry {
323 Builtins::Name id;
324 const char* name;
325 };
326 static const BuiltinEntry builtins[] = {
327 #define DEF_ENTRY(Name, ...) {Builtins::k##Name, "Builtin_" #Name},
328 BUILTIN_LIST_C(DEF_ENTRY) BUILTIN_LIST_A(DEF_ENTRY)
329 #undef DEF_ENTRY
330 };
331 for (unsigned i = 0; i < arraysize(builtins); ++i) {
332 Add(isolate->builtins()->builtin_address(builtins[i].id), builtins[i].name);
333 }
334 }
335
AddRuntimeFunctions(Isolate * isolate)336 void ExternalReferenceTable::AddRuntimeFunctions(Isolate* isolate) {
337 struct RuntimeEntry {
338 Runtime::FunctionId id;
339 const char* name;
340 };
341
342 static const RuntimeEntry runtime_functions[] = {
343 #define RUNTIME_ENTRY(name, i1, i2) {Runtime::k##name, "Runtime::" #name},
344 FOR_EACH_INTRINSIC(RUNTIME_ENTRY)
345 #undef RUNTIME_ENTRY
346 };
347
348 for (unsigned i = 0; i < arraysize(runtime_functions); ++i) {
349 ExternalReference ref(runtime_functions[i].id, isolate);
350 Add(ref.address(), runtime_functions[i].name);
351 }
352 }
353
AddIsolateAddresses(Isolate * isolate)354 void ExternalReferenceTable::AddIsolateAddresses(Isolate* isolate) {
355 // Top addresses
356 static const char* address_names[] = {
357 #define BUILD_NAME_LITERAL(Name, name) "Isolate::" #name "_address",
358 FOR_EACH_ISOLATE_ADDRESS_NAME(BUILD_NAME_LITERAL) NULL
359 #undef BUILD_NAME_LITERAL
360 };
361
362 for (int i = 0; i < Isolate::kIsolateAddressCount; ++i) {
363 Add(isolate->get_address_from_id(static_cast<Isolate::AddressId>(i)),
364 address_names[i]);
365 }
366 }
367
AddAccessors(Isolate * isolate)368 void ExternalReferenceTable::AddAccessors(Isolate* isolate) {
369 // Accessors
370 struct AccessorRefTable {
371 Address address;
372 const char* name;
373 };
374
375 static const AccessorRefTable getters[] = {
376 #define ACCESSOR_INFO_DECLARATION(name) \
377 {FUNCTION_ADDR(&Accessors::name##Getter), "Accessors::" #name "Getter"},
378 ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION)
379 #undef ACCESSOR_INFO_DECLARATION
380 };
381 static const AccessorRefTable setters[] = {
382 #define ACCESSOR_SETTER_DECLARATION(name) \
383 { FUNCTION_ADDR(&Accessors::name), "Accessors::" #name},
384 ACCESSOR_SETTER_LIST(ACCESSOR_SETTER_DECLARATION)
385 #undef ACCESSOR_INFO_DECLARATION
386 };
387
388 for (unsigned i = 0; i < arraysize(getters); ++i) {
389 Add(getters[i].address, getters[i].name);
390 }
391
392 for (unsigned i = 0; i < arraysize(setters); ++i) {
393 Add(setters[i].address, setters[i].name);
394 }
395 }
396
AddStubCache(Isolate * isolate)397 void ExternalReferenceTable::AddStubCache(Isolate* isolate) {
398 StubCache* load_stub_cache = isolate->load_stub_cache();
399
400 // Stub cache tables
401 Add(load_stub_cache->key_reference(StubCache::kPrimary).address(),
402 "Load StubCache::primary_->key");
403 Add(load_stub_cache->value_reference(StubCache::kPrimary).address(),
404 "Load StubCache::primary_->value");
405 Add(load_stub_cache->map_reference(StubCache::kPrimary).address(),
406 "Load StubCache::primary_->map");
407 Add(load_stub_cache->key_reference(StubCache::kSecondary).address(),
408 "Load StubCache::secondary_->key");
409 Add(load_stub_cache->value_reference(StubCache::kSecondary).address(),
410 "Load StubCache::secondary_->value");
411 Add(load_stub_cache->map_reference(StubCache::kSecondary).address(),
412 "Load StubCache::secondary_->map");
413
414 StubCache* store_stub_cache = isolate->store_stub_cache();
415
416 // Stub cache tables
417 Add(store_stub_cache->key_reference(StubCache::kPrimary).address(),
418 "Store StubCache::primary_->key");
419 Add(store_stub_cache->value_reference(StubCache::kPrimary).address(),
420 "Store StubCache::primary_->value");
421 Add(store_stub_cache->map_reference(StubCache::kPrimary).address(),
422 "Store StubCache::primary_->map");
423 Add(store_stub_cache->key_reference(StubCache::kSecondary).address(),
424 "Store StubCache::secondary_->key");
425 Add(store_stub_cache->value_reference(StubCache::kSecondary).address(),
426 "Store StubCache::secondary_->value");
427 Add(store_stub_cache->map_reference(StubCache::kSecondary).address(),
428 "Store StubCache::secondary_->map");
429 }
430
AddDeoptEntries(Isolate * isolate)431 void ExternalReferenceTable::AddDeoptEntries(Isolate* isolate) {
432 // Add a small set of deopt entry addresses to encoder without generating
433 // the
434 // deopt table code, which isn't possible at deserialization time.
435 HandleScope scope(isolate);
436 for (int entry = 0; entry < kDeoptTableSerializeEntryCount; ++entry) {
437 Address address = Deoptimizer::GetDeoptimizationEntry(
438 isolate, entry, Deoptimizer::LAZY,
439 Deoptimizer::CALCULATE_ENTRY_ADDRESS);
440 Add(address, "lazy_deopt");
441 }
442 }
443
AddApiReferences(Isolate * isolate)444 void ExternalReferenceTable::AddApiReferences(Isolate* isolate) {
445 // Add external references provided by the embedder (a null-terminated
446 // array).
447 api_refs_start_ = size();
448 intptr_t* api_external_references = isolate->api_external_references();
449 if (api_external_references != nullptr) {
450 while (*api_external_references != 0) {
451 Address address = reinterpret_cast<Address>(*api_external_references);
452 Add(address, ResolveSymbol(address));
453 api_external_references++;
454 }
455 }
456 }
457
458 } // namespace internal
459 } // namespace v8
460