3f99a376dd
This is a reland of f5d308510a
Original change's description:
> [builtins] Introduce further constant & external reference indirections
>
> This introduces further indirections for embedded constants and
> external references for builtins generated by the macro-assembler.
> The used mechanisms (LookupConstant and LookupExternalReference) are
> identical to what we already use in CSA.
>
> Almost all builtins are now isolate-independent in both release and
> debug modes. snapshot_blob.bin is roughly 670K smaller in embedded
> builds vs. non-embedded builds, while libv8.so is roughly 280K larger.
>
> Bug: v8:6666
> Change-Id: I7a6c2193ef5a763e6cf7543dd51597d6fff6c110
> Reviewed-on: https://chromium-review.googlesource.com/1006581
> Commit-Queue: Jakob Gruber <jgruber@chromium.org>
> Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#52810}
TBR=mstarzinger@chromium.org
Bug: v8:6666
Change-Id: I73dfe207f2c5f79a9a06c165c75f5619e88a5a17
Reviewed-on: https://chromium-review.googlesource.com/1030550
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52819}
292 lines
9.7 KiB
C++
292 lines
9.7 KiB
C++
// Copyright 2018 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 "test/cctest/cctest.h"
|
|
|
|
#include "src/assembler-inl.h"
|
|
#include "src/handles-inl.h"
|
|
#include "src/isolate.h"
|
|
#include "src/macro-assembler-inl.h"
|
|
#include "src/simulator.h"
|
|
#include "src/snapshot/macros.h"
|
|
#include "src/snapshot/snapshot.h"
|
|
|
|
// To generate the binary files for the test function, enable this section and
|
|
// run GenerateTestFunctionData once on each arch.
|
|
#define GENERATE_TEST_FUNCTION_DATA false
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
namespace test_isolate_independent_builtins {
|
|
|
|
#ifdef V8_EMBEDDED_BUILTINS
|
|
UNINITIALIZED_TEST(VerifyBuiltinsIsolateIndependence) {
|
|
v8::Isolate::CreateParams create_params;
|
|
create_params.array_buffer_allocator = CcTest::array_buffer_allocator();
|
|
v8::Isolate* v8_isolate = v8::Isolate::New(create_params);
|
|
|
|
{
|
|
v8::Isolate::Scope isolate_scope(v8_isolate);
|
|
v8::internal::Isolate* isolate =
|
|
reinterpret_cast<v8::internal::Isolate*>(v8_isolate);
|
|
HandleScope handle_scope(isolate);
|
|
|
|
Snapshot::EnsureAllBuiltinsAreDeserialized(isolate);
|
|
|
|
// TODO(jgruber,v8:6666): Investigate CONST_POOL and VENEER_POOL kinds.
|
|
// CONST_POOL is currently relevant on {arm,arm64,mips,mips64,ppc,s390}.
|
|
// Rumors are it will also become relevant on x64. My
|
|
// understanding is that we should be fine if we ensure it
|
|
// doesn't contain heap constants and we use pc-relative
|
|
// addressing.
|
|
// VENEER_POOL is arm64-only. From what I've seen, jumps are pc-relative
|
|
// and stay within the same code object and thus should be
|
|
// isolate-independent.
|
|
|
|
// Build a white-list of all isolate-independent RelocInfo entry kinds.
|
|
constexpr int all_real_modes_mask =
|
|
(1 << (RelocInfo::LAST_REAL_RELOC_MODE + 1)) - 1;
|
|
constexpr int mode_mask =
|
|
all_real_modes_mask & ~RelocInfo::ModeMask(RelocInfo::COMMENT) &
|
|
~RelocInfo::ModeMask(RelocInfo::INTERNAL_REFERENCE) &
|
|
~RelocInfo::ModeMask(RelocInfo::INTERNAL_REFERENCE_ENCODED) &
|
|
~RelocInfo::ModeMask(RelocInfo::OFF_HEAP_TARGET) &
|
|
~RelocInfo::ModeMask(RelocInfo::CONST_POOL) &
|
|
~RelocInfo::ModeMask(RelocInfo::VENEER_POOL);
|
|
STATIC_ASSERT(RelocInfo::LAST_REAL_RELOC_MODE == RelocInfo::VENEER_POOL);
|
|
STATIC_ASSERT(RelocInfo::ModeMask(RelocInfo::COMMENT) ==
|
|
(1 << RelocInfo::COMMENT));
|
|
STATIC_ASSERT(
|
|
mode_mask ==
|
|
(RelocInfo::ModeMask(RelocInfo::CODE_TARGET) |
|
|
RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) |
|
|
RelocInfo::ModeMask(RelocInfo::WASM_GLOBAL_HANDLE) |
|
|
RelocInfo::ModeMask(RelocInfo::WASM_CALL) |
|
|
RelocInfo::ModeMask(RelocInfo::JS_TO_WASM_CALL) |
|
|
RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY) |
|
|
RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE)));
|
|
|
|
constexpr bool kVerbose = false;
|
|
bool found_mismatch = false;
|
|
for (int i = 0; i < Builtins::builtin_count; i++) {
|
|
Code* code = isolate->builtins()->builtin(i);
|
|
|
|
bool is_isolate_independent = true;
|
|
for (RelocIterator it(code, mode_mask); !it.done(); it.next()) {
|
|
if (kVerbose) {
|
|
if (is_isolate_independent) {
|
|
printf("%s %s\n", Builtins::KindNameOf(i),
|
|
isolate->builtins()->name(i));
|
|
}
|
|
#ifdef ENABLE_DISASSEMBLER
|
|
RelocInfo::Mode mode = it.rinfo()->rmode();
|
|
printf(" %s\n", RelocInfo::RelocModeName(mode));
|
|
#endif
|
|
}
|
|
is_isolate_independent = false;
|
|
}
|
|
|
|
// Relaxed condition only checks whether the isolate-independent list is
|
|
// valid, not whether it is complete. This is to avoid constant work
|
|
// updating the list.
|
|
bool should_be_isolate_independent = Builtins::IsIsolateIndependent(i);
|
|
if (should_be_isolate_independent && !is_isolate_independent) {
|
|
found_mismatch = true;
|
|
printf("%s %s expected: %d, is: %d\n", Builtins::KindNameOf(i),
|
|
isolate->builtins()->name(i), should_be_isolate_independent,
|
|
is_isolate_independent);
|
|
}
|
|
}
|
|
|
|
CHECK(!found_mismatch);
|
|
}
|
|
|
|
v8_isolate->Dispose();
|
|
}
|
|
#endif // V8_EMBEDDED_BUILTINS
|
|
|
|
// V8_CC_MSVC is true for both MSVC and clang on windows. clang can handle
|
|
// __asm__-style inline assembly but MSVC cannot, and thus we need a more
|
|
// precise compiler detection that can distinguish between the two. clang on
|
|
// windows sets both __clang__ and _MSC_VER, MSVC sets only _MSC_VER.
|
|
#if defined(_MSC_VER) && !defined(__clang__)
|
|
#define V8_COMPILER_IS_MSVC
|
|
#endif
|
|
|
|
#ifndef V8_COMPILER_IS_MSVC
|
|
#if GENERATE_TEST_FUNCTION_DATA
|
|
|
|
// Arch-specific defines.
|
|
#if V8_TARGET_ARCH_IA32
|
|
#define TEST_FUNCTION_FILE "f-ia32.bin"
|
|
#elif V8_TARGET_ARCH_X64 && _WIN64
|
|
#define TEST_FUNCTION_FILE "f-x64-win.bin"
|
|
#elif V8_TARGET_ARCH_X64
|
|
#define TEST_FUNCTION_FILE "f-x64.bin"
|
|
#elif V8_TARGET_ARCH_ARM64
|
|
#define TEST_FUNCTION_FILE "f-arm64.bin"
|
|
#elif V8_TARGET_ARCH_ARM
|
|
#define TEST_FUNCTION_FILE "f-arm.bin"
|
|
#elif V8_TARGET_ARCH_PPC
|
|
#define TEST_FUNCTION_FILE "f-ppc.bin"
|
|
#elif V8_TARGET_ARCH_MIPS
|
|
#define TEST_FUNCTION_FILE "f-mips.bin"
|
|
#elif V8_TARGET_ARCH_MIPS64
|
|
#define TEST_FUNCTION_FILE "f-mips64.bin"
|
|
#elif V8_TARGET_ARCH_S390
|
|
#define TEST_FUNCTION_FILE "f-s390.bin"
|
|
#else
|
|
#error "Unknown architecture."
|
|
#endif
|
|
|
|
#define __ masm.
|
|
|
|
TEST(GenerateTestFunctionData) {
|
|
CcTest::InitializeVM();
|
|
Isolate* isolate = CcTest::i_isolate();
|
|
HandleScope scope(isolate);
|
|
|
|
#if V8_TARGET_ARCH_IA32
|
|
v8::internal::byte buffer[256];
|
|
Assembler masm(isolate, buffer, sizeof(buffer));
|
|
|
|
__ mov(eax, Operand(esp, 4));
|
|
__ add(eax, Operand(esp, 8));
|
|
__ ret(0);
|
|
#elif V8_TARGET_ARCH_X64
|
|
size_t allocated;
|
|
byte* buffer = AllocateAssemblerBuffer(&allocated);
|
|
Assembler masm(isolate, buffer, static_cast<int>(allocated));
|
|
|
|
#ifdef _WIN64
|
|
static const Register arg1 = rcx;
|
|
static const Register arg2 = rdx;
|
|
#else
|
|
static const Register arg1 = rdi;
|
|
static const Register arg2 = rsi;
|
|
#endif
|
|
|
|
__ movq(rax, arg2);
|
|
__ addq(rax, arg1);
|
|
__ ret(0);
|
|
#elif V8_TARGET_ARCH_ARM64
|
|
MacroAssembler masm(isolate, nullptr, 0,
|
|
v8::internal::CodeObjectRequired::kYes);
|
|
|
|
__ Add(x0, x0, x1);
|
|
__ Ret();
|
|
#elif V8_TARGET_ARCH_ARM
|
|
Assembler masm(isolate, nullptr, 0);
|
|
|
|
__ add(r0, r0, Operand(r1));
|
|
__ mov(pc, Operand(lr));
|
|
#elif V8_TARGET_ARCH_PPC
|
|
Assembler masm(isolate, nullptr, 0);
|
|
|
|
__ function_descriptor();
|
|
__ add(r3, r3, r4);
|
|
__ blr();
|
|
#elif V8_TARGET_ARCH_MIPS
|
|
MacroAssembler masm(isolate, nullptr, 0,
|
|
v8::internal::CodeObjectRequired::kYes);
|
|
|
|
__ addu(v0, a0, a1);
|
|
__ jr(ra);
|
|
__ nop();
|
|
#elif V8_TARGET_ARCH_MIPS64
|
|
MacroAssembler masm(isolate, nullptr, 0,
|
|
v8::internal::CodeObjectRequired::kYes);
|
|
|
|
__ addu(v0, a0, a1);
|
|
__ jr(ra);
|
|
__ nop();
|
|
#elif V8_TARGET_ARCH_S390
|
|
Assembler masm(isolate, nullptr, 0);
|
|
|
|
__ agr(r2, r3);
|
|
__ b(r14);
|
|
#else // Unknown architecture.
|
|
#error "Unknown architecture."
|
|
#endif // Target architecture.
|
|
|
|
CodeDesc desc;
|
|
masm.GetCode(isolate, &desc);
|
|
|
|
std::ofstream of(TEST_FUNCTION_FILE, std::ios::out | std::ios::binary);
|
|
of.write(reinterpret_cast<char*>(desc.buffer), desc.instr_size);
|
|
}
|
|
#undef __
|
|
#endif // GENERATE_TEST_FUNCTION_DATA
|
|
|
|
#if V8_TARGET_ARCH_IA32
|
|
#define FUNCTION_BYTES \
|
|
".byte 0x8b, 0x44, 0x24, 0x04, 0x03, 0x44, 0x24, 0x08, 0xc3\n"
|
|
#elif V8_TARGET_ARCH_X64 && _WIN64
|
|
#define FUNCTION_BYTES ".byte 0x48, 0x8b, 0xc2, 0x48, 0x03, 0xc1, 0xc3\n"
|
|
#elif V8_TARGET_ARCH_X64
|
|
#define FUNCTION_BYTES ".byte 0x48, 0x8b, 0xc6, 0x48, 0x03, 0xc7, 0xc3\n"
|
|
#elif V8_TARGET_ARCH_ARM64
|
|
#define FUNCTION_BYTES ".byte 0x00, 0x00, 0x01, 0x8b, 0xc0, 0x03, 0x5f, 0xd6\n"
|
|
#elif V8_TARGET_ARCH_ARM
|
|
#define FUNCTION_BYTES ".byte 0x01, 0x00, 0x80, 0xe0, 0x0e, 0xf0, 0xa0, 0xe1\n"
|
|
#elif V8_TARGET_ARCH_PPC
|
|
#if defined(V8_OS_AIX)
|
|
#define FUNCTION_BYTES ".byte 0x7c, 0x64, 0x1a, 0x14, 0x4e, 0x80, 0x00, 0x20\n"
|
|
#else
|
|
#define FUNCTION_BYTES ".byte 0x14, 0x22, 0x63, 0x7c, 0x20, 0x00, 0x80, 0x4e\n"
|
|
#endif
|
|
#elif defined(V8_TARGET_ARCH_MIPS) || defined(V8_TARGET_ARCH_MIPS64)
|
|
#if defined(V8_TARGET_BIG_ENDIAN)
|
|
#define FUNCTION_BYTES \
|
|
".byte 0x00, 0x85, 0x10, 0x21, 0x03, 0xe0, 0x00, " \
|
|
"0x08, 0x00, 0x00, 0x00, 0x00\n"
|
|
#else
|
|
#define FUNCTION_BYTES \
|
|
".byte 0x21, 0x10, 0x85, 0x00, 0x08, 0x00, 0xe0, " \
|
|
"0x03, 0x00, 0x00, 0x00, 0x00\n"
|
|
#endif
|
|
#elif V8_TARGET_ARCH_S390
|
|
#define FUNCTION_BYTES \
|
|
".byte 0xb9, 0x08, 0x00, 0x23, 0x07, 0xfe\n"
|
|
#else
|
|
#error "Unknown architecture."
|
|
#endif
|
|
|
|
V8_EMBEDDED_RODATA_HEADER(test_string0_bytes)
|
|
__asm__(".byte 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37\n"
|
|
".byte 0x38, 0x39, 0x0a, 0x00\n");
|
|
extern "C" V8_ALIGNED(16) const char test_string0_bytes[];
|
|
|
|
V8_EMBEDDED_TEXT_HEADER(test_function0_bytes)
|
|
__asm__(FUNCTION_BYTES);
|
|
extern "C" V8_ALIGNED(16) const char test_function0_bytes[];
|
|
// clang-format on
|
|
|
|
// A historical note: We use .byte over .incbin since the latter leads to
|
|
// complications involving generation of build-time dependencies. Goma parses
|
|
// #include statements, and clang has -MD/-MMD. Neither recognize .incbin.
|
|
|
|
TEST(ByteInRodata) {
|
|
CHECK_EQ(0, std::strcmp("0123456789\n", test_string0_bytes));
|
|
}
|
|
|
|
TEST(ByteInText) {
|
|
CcTest::InitializeVM();
|
|
Isolate* isolate = CcTest::i_isolate();
|
|
auto f = GeneratedCode<int(int, int)>::FromAddress(
|
|
isolate, reinterpret_cast<Address>(&test_function0_bytes[0]));
|
|
CHECK_EQ(7, f.Call(3, 4));
|
|
CHECK_EQ(11, f.Call(5, 6));
|
|
}
|
|
#endif // #ifndef V8_COMPILER_IS_MSVC
|
|
#undef V8_COMPILER_IS_MSVC
|
|
|
|
#undef FUNCTION_BYTES
|
|
#undef GENERATE_TEST_FUNCTION_DATA
|
|
#undef TEST_FUNCTION_FILE
|
|
|
|
} // namespace test_isolate_independent_builtins
|
|
} // namespace internal
|
|
} // namespace v8
|