// Write line table for given set of methods.
// Returns the number of bytes written.
size_t WriteCompilationUnit(ElfCompilationUnit& compilation_unit) {
- const bool is64bit = Is64BitInstructionSet(builder_->GetIsa());
+ const InstructionSet isa = builder_->GetIsa();
+ const bool is64bit = Is64BitInstructionSet(isa);
const Elf_Addr base_address = compilation_unit.is_code_address_text_relative
? builder_->GetText()->GetAddress()
: 0;
std::unordered_map<std::string, size_t> directories_map;
int code_factor_bits_ = 0;
int dwarf_isa = -1;
- switch (builder_->GetIsa()) {
+ switch (isa) {
case kArm: // arm actually means thumb2.
case kThumb2:
code_factor_bits_ = 1; // 16-bit instuctions
for (uint32_t s = 0; s < code_info.GetNumberOfStackMaps(encoding); s++) {
StackMap stack_map = code_info.GetStackMapAt(s, encoding);
DCHECK(stack_map.IsValid());
- const uint32_t pc = stack_map.GetNativePcOffset(encoding.stack_map_encoding);
+ const uint32_t pc = stack_map.GetNativePcOffset(encoding.stack_map_encoding, isa);
const int32_t dex = stack_map.GetDexPc(encoding.stack_map_encoding);
pc2dex_map.push_back({pc, dex});
if (stack_map.HasDexRegisterMap(encoding.stack_map_encoding)) {
bool is64bitValue,
uint64_t compilation_unit_code_address,
uint32_t dex_pc_low,
- uint32_t dex_pc_high) {
+ uint32_t dex_pc_high,
+ InstructionSet isa) {
std::vector<VariableLocation> variable_locations;
// Get stack maps sorted by pc (they might not be sorted internally).
// The main reason for this is to save space by avoiding undefined gaps.
continue;
}
- const uint32_t pc_offset = stack_map.GetNativePcOffset(encoding.stack_map_encoding);
+ const uint32_t pc_offset = stack_map.GetNativePcOffset(encoding.stack_map_encoding, isa);
DCHECK_LE(pc_offset, method_info->code_size);
DCHECK_LE(compilation_unit_code_address, method_info->code_address);
const uint32_t low_pc = dchecked_integral_cast<uint32_t>(
is64bitValue,
compilation_unit_code_address,
dex_pc_low,
- dex_pc_high);
+ dex_pc_high,
+ isa);
// Write .debug_loc entries.
dwarf::Writer<> debug_loc(debug_loc_buffer);
ArenaPool pool;
ArenaAllocator allocator(&pool);
- StackMapStream stack_maps(&allocator);
+ StackMapStream stack_maps(&allocator, kRuntimeISA);
stack_maps.BeginStackMapEntry(/* dex_pc */ 3u,
/* native_pc_offset */ 3u,
/* register_mask */ 0u,
// last emitted is different than the native pc of the stack map just emitted.
size_t number_of_stack_maps = stack_map_stream_.GetNumberOfStackMaps();
if (number_of_stack_maps > 1) {
- DCHECK_NE(stack_map_stream_.GetStackMap(number_of_stack_maps - 1).native_pc_offset,
- stack_map_stream_.GetStackMap(number_of_stack_maps - 2).native_pc_offset);
+ DCHECK_NE(stack_map_stream_.GetStackMap(number_of_stack_maps - 1).native_pc_code_offset,
+ stack_map_stream_.GetStackMap(number_of_stack_maps - 2).native_pc_code_offset);
}
}
}
bool CodeGenerator::HasStackMapAtCurrentPc() {
uint32_t pc = GetAssembler()->CodeSize();
size_t count = stack_map_stream_.GetNumberOfStackMaps();
- return count > 0 && stack_map_stream_.GetStackMap(count - 1).native_pc_offset == pc;
+ CodeOffset native_pc_offset = stack_map_stream_.GetStackMap(count - 1).native_pc_code_offset;
+ return (count > 0) && (native_pc_offset.Uint32Value(GetInstructionSet()) == pc);
}
void CodeGenerator::MaybeRecordNativeDebugInfo(HInstruction* instruction,
number_of_register_pairs_(number_of_register_pairs),
core_callee_save_mask_(core_callee_save_mask),
fpu_callee_save_mask_(fpu_callee_save_mask),
- stack_map_stream_(graph->GetArena()),
+ stack_map_stream_(graph->GetArena(), graph->GetInstructionSet()),
block_order_(nullptr),
jit_string_roots_(StringReferenceValueComparator(),
graph->GetArena()->Adapter(kArenaAllocCodeGenerator)),
// Adjust native pc offsets in stack maps.
for (size_t i = 0, num = stack_map_stream_.GetNumberOfStackMaps(); i != num; ++i) {
- uint32_t old_position = stack_map_stream_.GetStackMap(i).native_pc_offset;
+ uint32_t old_position =
+ stack_map_stream_.GetStackMap(i).native_pc_code_offset.Uint32Value(kThumb2);
uint32_t new_position = __ GetAdjustedPosition(old_position);
stack_map_stream_.SetStackMapNativePcOffset(i, new_position);
}
// Adjust native pc offsets in stack maps.
for (size_t i = 0, num = stack_map_stream_.GetNumberOfStackMaps(); i != num; ++i) {
- uint32_t old_position = stack_map_stream_.GetStackMap(i).native_pc_offset;
+ uint32_t old_position =
+ stack_map_stream_.GetStackMap(i).native_pc_code_offset.Uint32Value(kMips);
uint32_t new_position = __ GetAdjustedPosition(old_position);
DCHECK_GE(new_position, old_position);
stack_map_stream_.SetStackMapNativePcOffset(i, new_position);
// Adjust native pc offsets in stack maps.
for (size_t i = 0, num = stack_map_stream_.GetNumberOfStackMaps(); i != num; ++i) {
- uint32_t old_position = stack_map_stream_.GetStackMap(i).native_pc_offset;
+ uint32_t old_position =
+ stack_map_stream_.GetStackMap(i).native_pc_code_offset.Uint32Value(kMips64);
uint32_t new_position = __ GetAdjustedPosition(old_position);
DCHECK_GE(new_position, old_position);
stack_map_stream_.SetStackMapNativePcOffset(i, new_position);
DCHECK_EQ(0u, current_entry_.dex_pc) << "EndStackMapEntry not called after BeginStackMapEntry";
DCHECK_NE(dex_pc, static_cast<uint32_t>(-1)) << "invalid dex_pc";
current_entry_.dex_pc = dex_pc;
- current_entry_.native_pc_offset = native_pc_offset;
+ current_entry_.native_pc_code_offset = CodeOffset::FromOffset(native_pc_offset, instruction_set_);
current_entry_.register_mask = register_mask;
current_entry_.sp_mask = sp_mask;
current_entry_.num_dex_registers = num_dex_registers;
current_inline_info_ = InlineInfoEntry();
}
-uint32_t StackMapStream::ComputeMaxNativePcOffset() const {
- uint32_t max_native_pc_offset = 0u;
+CodeOffset StackMapStream::ComputeMaxNativePcCodeOffset() const {
+ CodeOffset max_native_pc_offset;
for (const StackMapEntry& entry : stack_maps_) {
- max_native_pc_offset = std::max(max_native_pc_offset, entry.native_pc_offset);
+ max_native_pc_offset = std::max(max_native_pc_offset, entry.native_pc_code_offset);
}
return max_native_pc_offset;
}
dex_register_maps_size_ = ComputeDexRegisterMapsSize();
ComputeInlineInfoEncoding(); // needs dex_register_maps_size_.
inline_info_size_ = inline_infos_.size() * inline_info_encoding_.GetEntrySize();
- uint32_t max_native_pc_offset = ComputeMaxNativePcOffset();
- size_t stack_map_size = stack_map_encoding_.SetFromSizes(max_native_pc_offset,
+ CodeOffset max_native_pc_offset = ComputeMaxNativePcCodeOffset();
+ // The stack map contains compressed native offsets.
+ size_t stack_map_size = stack_map_encoding_.SetFromSizes(max_native_pc_offset.CompressedValue(),
dex_pc_max_,
dex_register_maps_size_,
inline_info_size_,
StackMapEntry entry = stack_maps_[i];
stack_map.SetDexPc(stack_map_encoding_, entry.dex_pc);
- stack_map.SetNativePcOffset(stack_map_encoding_, entry.native_pc_offset);
+ stack_map.SetNativePcCodeOffset(stack_map_encoding_, entry.native_pc_code_offset);
stack_map.SetRegisterMask(stack_map_encoding_, entry.register_mask);
size_t number_of_stack_mask_bits = stack_map.GetNumberOfStackMaskBits(stack_map_encoding_);
if (entry.sp_mask != nullptr) {
StackMapEntry entry = stack_maps_[s];
// Check main stack map fields.
- DCHECK_EQ(stack_map.GetNativePcOffset(stack_map_encoding), entry.native_pc_offset);
+ DCHECK_EQ(stack_map.GetNativePcOffset(stack_map_encoding, instruction_set_),
+ entry.native_pc_code_offset.Uint32Value(instruction_set_));
DCHECK_EQ(stack_map.GetDexPc(stack_map_encoding), entry.dex_pc);
DCHECK_EQ(stack_map.GetRegisterMask(stack_map_encoding), entry.register_mask);
size_t num_stack_mask_bits = stack_map.GetNumberOfStackMaskBits(stack_map_encoding);
*/
class StackMapStream : public ValueObject {
public:
- explicit StackMapStream(ArenaAllocator* allocator)
+ explicit StackMapStream(ArenaAllocator* allocator,
+ InstructionSet instruction_set)
: allocator_(allocator),
+ instruction_set_(instruction_set),
stack_maps_(allocator->Adapter(kArenaAllocStackMapStream)),
location_catalog_entries_(allocator->Adapter(kArenaAllocStackMapStream)),
location_catalog_entries_indices_(allocator->Adapter(kArenaAllocStackMapStream)),
// See runtime/stack_map.h to know what these fields contain.
struct StackMapEntry {
uint32_t dex_pc;
- uint32_t native_pc_offset;
+ CodeOffset native_pc_code_offset;
uint32_t register_mask;
BitVector* sp_mask;
uint32_t num_dex_registers;
}
void SetStackMapNativePcOffset(size_t i, uint32_t native_pc_offset) {
- stack_maps_[i].native_pc_offset = native_pc_offset;
+ stack_maps_[i].native_pc_code_offset = CodeOffset::FromOffset(native_pc_offset, instruction_set_);
}
- uint32_t ComputeMaxNativePcOffset() const;
-
// Prepares the stream to fill in a memory region. Must be called before FillIn.
// Returns the size (in bytes) needed to store this stream.
size_t PrepareForFillIn();
size_t ComputeDexRegisterMapsSize() const;
void ComputeInlineInfoEncoding();
+ CodeOffset ComputeMaxNativePcCodeOffset() const;
+
// Returns the index of an entry with the same dex register map as the current_entry,
// or kNoSameDexMapFound if no such entry exists.
size_t FindEntryWithTheSameDexMap();
void CheckCodeInfo(MemoryRegion region) const;
ArenaAllocator* allocator_;
+ const InstructionSet instruction_set_;
ArenaVector<StackMapEntry> stack_maps_;
// A catalog of unique [location_kind, register_value] pairs (per method).
TEST(StackMapTest, Test1) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArenaBitVector sp_mask(&arena, 0, false);
size_t number_of_dex_registers = 2;
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding)));
ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0x3u, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_TRUE(CheckStackMask(stack_map, encoding.stack_map_encoding, sp_mask));
TEST(StackMapTest, Test2) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArtMethod art_method;
ArenaBitVector sp_mask1(&arena, 0, true);
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding)));
ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0x3u, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_TRUE(CheckStackMask(stack_map, encoding.stack_map_encoding, sp_mask1));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(1u, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(128u, encoding)));
ASSERT_EQ(1u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(128u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(128u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0xFFu, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_TRUE(CheckStackMask(stack_map, encoding.stack_map_encoding, sp_mask2));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(2u, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(192u, encoding)));
ASSERT_EQ(2u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(192u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(192u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0xABu, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_TRUE(CheckStackMask(stack_map, encoding.stack_map_encoding, sp_mask3));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(3u, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(256u, encoding)));
ASSERT_EQ(3u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(256u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(256u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0xCDu, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_TRUE(CheckStackMask(stack_map, encoding.stack_map_encoding, sp_mask4));
TEST(StackMapTest, TestNonLiveDexRegisters) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArenaBitVector sp_mask(&arena, 0, false);
uint32_t number_of_dex_registers = 2;
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding)));
ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0x3u, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_TRUE(stack_map.HasDexRegisterMap(encoding.stack_map_encoding));
TEST(StackMapTest, DexRegisterMapOffsetOverflow) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArenaBitVector sp_mask(&arena, 0, false);
uint32_t number_of_dex_registers = 1024;
TEST(StackMapTest, TestShareDexRegisterMap) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArenaBitVector sp_mask(&arena, 0, false);
uint32_t number_of_dex_registers = 2;
TEST(StackMapTest, TestNoDexRegisterMap) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArenaBitVector sp_mask(&arena, 0, false);
uint32_t number_of_dex_registers = 0;
stream.EndStackMapEntry();
number_of_dex_registers = 1;
- stream.BeginStackMapEntry(1, 67, 0x4, &sp_mask, number_of_dex_registers, 0);
+ stream.BeginStackMapEntry(1, 68, 0x4, &sp_mask, number_of_dex_registers, 0);
stream.EndStackMapEntry();
size_t size = stream.PrepareForFillIn();
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(0, encoding)));
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(64, encoding)));
ASSERT_EQ(0u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(64u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0x3u, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_FALSE(stack_map.HasDexRegisterMap(encoding.stack_map_encoding));
stack_map = code_info.GetStackMapAt(1, encoding);
ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForDexPc(1, encoding)));
- ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(67, encoding)));
+ ASSERT_TRUE(stack_map.Equals(code_info.GetStackMapForNativePcOffset(68, encoding)));
ASSERT_EQ(1u, stack_map.GetDexPc(encoding.stack_map_encoding));
- ASSERT_EQ(67u, stack_map.GetNativePcOffset(encoding.stack_map_encoding));
+ ASSERT_EQ(68u, stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA));
ASSERT_EQ(0x4u, stack_map.GetRegisterMask(encoding.stack_map_encoding));
ASSERT_FALSE(stack_map.HasDexRegisterMap(encoding.stack_map_encoding));
TEST(StackMapTest, InlineTest) {
ArenaPool pool;
ArenaAllocator arena(&pool);
- StackMapStream stream(&arena);
+ StackMapStream stream(&arena, kRuntimeISA);
ArtMethod art_method;
ArenaBitVector sp_mask1(&arena, 0, true);
}
}
+TEST(StackMapTest, CodeOffsetTest) {
+ // Test minimum alignments, encoding, and decoding.
+ CodeOffset offset_thumb2 = CodeOffset::FromOffset(kThumb2InstructionAlignment, kThumb2);
+ CodeOffset offset_arm64 = CodeOffset::FromOffset(kArm64InstructionAlignment, kArm64);
+ CodeOffset offset_x86 = CodeOffset::FromOffset(kX86InstructionAlignment, kX86);
+ CodeOffset offset_x86_64 = CodeOffset::FromOffset(kX86_64InstructionAlignment, kX86_64);
+ CodeOffset offset_mips = CodeOffset::FromOffset(kMipsInstructionAlignment, kMips);
+ CodeOffset offset_mips64 = CodeOffset::FromOffset(kMips64InstructionAlignment, kMips64);
+ EXPECT_EQ(offset_thumb2.Uint32Value(kThumb2), kThumb2InstructionAlignment);
+ EXPECT_EQ(offset_arm64.Uint32Value(kArm64), kArm64InstructionAlignment);
+ EXPECT_EQ(offset_x86.Uint32Value(kX86), kX86InstructionAlignment);
+ EXPECT_EQ(offset_x86_64.Uint32Value(kX86_64), kX86_64InstructionAlignment);
+ EXPECT_EQ(offset_mips.Uint32Value(kMips), kMipsInstructionAlignment);
+ EXPECT_EQ(offset_mips64.Uint32Value(kMips64), kMips64InstructionAlignment);
+}
+
} // namespace art
code_info.Dump(vios,
oat_method.GetCodeOffset(),
code_item.registers_size_,
- options_.dump_code_info_stack_maps_);
+ options_.dump_code_info_stack_maps_,
+ instruction_set_);
}
void DumpVregLocations(std::ostream& os, const OatFile::OatMethod& oat_method,
// For identical native PCs, the order from the CodeInfo is preserved.
class StackMapsHelper {
public:
- explicit StackMapsHelper(const uint8_t* raw_code_info)
+ explicit StackMapsHelper(const uint8_t* raw_code_info, InstructionSet instruction_set)
: code_info_(raw_code_info),
encoding_(code_info_.ExtractEncoding()),
number_of_stack_maps_(code_info_.GetNumberOfStackMaps(encoding_)),
indexes_(),
- offset_(static_cast<size_t>(-1)),
- stack_map_index_(0u) {
+ offset_(static_cast<uint32_t>(-1)),
+ stack_map_index_(0u),
+ instruction_set_(instruction_set) {
if (number_of_stack_maps_ != 0u) {
// Check if native PCs are ordered.
bool ordered = true;
StackMap last = code_info_.GetStackMapAt(0u, encoding_);
for (size_t i = 1; i != number_of_stack_maps_; ++i) {
StackMap current = code_info_.GetStackMapAt(i, encoding_);
- if (last.GetNativePcOffset(encoding_.stack_map_encoding) >
- current.GetNativePcOffset(encoding_.stack_map_encoding)) {
+ if (last.GetNativePcOffset(encoding_.stack_map_encoding, instruction_set) >
+ current.GetNativePcOffset(encoding_.stack_map_encoding, instruction_set)) {
ordered = false;
break;
}
indexes_.end(),
[this](size_t lhs, size_t rhs) {
StackMap left = code_info_.GetStackMapAt(lhs, encoding_);
- uint32_t left_pc = left.GetNativePcOffset(encoding_.stack_map_encoding);
+ uint32_t left_pc = left.GetNativePcOffset(encoding_.stack_map_encoding,
+ instruction_set_);
StackMap right = code_info_.GetStackMapAt(rhs, encoding_);
- uint32_t right_pc = right.GetNativePcOffset(encoding_.stack_map_encoding);
+ uint32_t right_pc = right.GetNativePcOffset(encoding_.stack_map_encoding,
+ instruction_set_);
// If the PCs are the same, compare indexes to preserve the original order.
return (left_pc < right_pc) || (left_pc == right_pc && lhs < rhs);
});
}
- offset_ = GetStackMapAt(0).GetNativePcOffset(encoding_.stack_map_encoding);
+ offset_ = GetStackMapAt(0).GetNativePcOffset(encoding_.stack_map_encoding,
+ instruction_set_);
}
}
return encoding_;
}
- size_t GetOffset() const {
+ uint32_t GetOffset() const {
return offset_;
}
void Next() {
++stack_map_index_;
offset_ = (stack_map_index_ == number_of_stack_maps_)
- ? static_cast<size_t>(-1)
- : GetStackMapAt(stack_map_index_).GetNativePcOffset(encoding_.stack_map_encoding);
+ ? static_cast<uint32_t>(-1)
+ : GetStackMapAt(stack_map_index_).GetNativePcOffset(encoding_.stack_map_encoding,
+ instruction_set_);
}
private:
const CodeInfoEncoding encoding_;
const size_t number_of_stack_maps_;
dchecked_vector<size_t> indexes_; // Used if stack map native PCs are not ordered.
- size_t offset_;
+ uint32_t offset_;
size_t stack_map_index_;
+ const InstructionSet instruction_set_;
};
void DumpCode(VariableIndentationOutputStream* vios,
return;
} else if (!bad_input && IsMethodGeneratedByOptimizingCompiler(oat_method, code_item)) {
// The optimizing compiler outputs its CodeInfo data in the vmap table.
- StackMapsHelper helper(oat_method.GetVmapTable());
+ StackMapsHelper helper(oat_method.GetVmapTable(), instruction_set_);
const uint8_t* quick_native_pc = reinterpret_cast<const uint8_t*>(quick_code);
size_t offset = 0;
while (offset < code_size) {
helper.GetCodeInfo(),
helper.GetEncoding(),
oat_method.GetCodeOffset(),
- code_item->registers_size_);
+ code_item->registers_size_,
+ instruction_set_);
do {
helper.Next();
// There may be multiple stack maps at a given PC. We display only the first one.
--- /dev/null
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_ARCH_CODE_OFFSET_H_
+#define ART_RUNTIME_ARCH_CODE_OFFSET_H_
+
+#include <iosfwd>
+
+#include "base/bit_utils.h"
+#include "base/logging.h"
+#include "instruction_set.h"
+
+namespace art {
+
+// CodeOffset is a holder for compressed code offsets. Since some architectures have alignment
+// requirements it is possible to compress code offsets to reduce stack map sizes.
+class CodeOffset {
+ public:
+ ALWAYS_INLINE static CodeOffset FromOffset(uint32_t offset, InstructionSet isa = kRuntimeISA) {
+ return CodeOffset(offset / GetInstructionSetInstructionAlignment(isa));
+ }
+
+ ALWAYS_INLINE static CodeOffset FromCompressedOffset(uint32_t offset) {
+ return CodeOffset(offset);
+ }
+
+ ALWAYS_INLINE uint32_t Uint32Value(InstructionSet isa = kRuntimeISA) const {
+ uint32_t decoded = value_ * GetInstructionSetInstructionAlignment(isa);
+ DCHECK_GE(decoded, value_) << "Integer overflow";
+ return decoded;
+ }
+
+ // Return compressed internal value.
+ ALWAYS_INLINE uint32_t CompressedValue() const {
+ return value_;
+ }
+
+ ALWAYS_INLINE CodeOffset() = default;
+ ALWAYS_INLINE CodeOffset(const CodeOffset&) = default;
+ ALWAYS_INLINE CodeOffset& operator=(const CodeOffset&) = default;
+ ALWAYS_INLINE CodeOffset& operator=(CodeOffset&&) = default;
+
+ private:
+ ALWAYS_INLINE explicit CodeOffset(uint32_t value) : value_(value) {}
+
+ uint32_t value_ = 0u;
+};
+
+inline bool operator==(const CodeOffset& a, const CodeOffset& b) {
+ return a.CompressedValue() == b.CompressedValue();
+}
+
+inline bool operator!=(const CodeOffset& a, const CodeOffset& b) {
+ return !(a == b);
+}
+
+inline bool operator<(const CodeOffset& a, const CodeOffset& b) {
+ return a.CompressedValue() < b.CompressedValue();
+}
+
+inline bool operator<=(const CodeOffset& a, const CodeOffset& b) {
+ return a.CompressedValue() <= b.CompressedValue();
+}
+
+inline bool operator>(const CodeOffset& a, const CodeOffset& b) {
+ return a.CompressedValue() > b.CompressedValue();
+}
+
+inline bool operator>=(const CodeOffset& a, const CodeOffset& b) {
+ return a.CompressedValue() >= b.CompressedValue();
+}
+
+inline std::ostream& operator<<(std::ostream& os, const CodeOffset& offset) {
+ return os << offset.Uint32Value();
+}
+
+} // namespace art
+
+#endif // ART_RUNTIME_ARCH_CODE_OFFSET_H_
// X86 instruction alignment. This is the recommended alignment for maximum performance.
static constexpr size_t kX86Alignment = 16;
+// Different than code alignment since code alignment is only first instruction of method.
+static constexpr size_t kThumb2InstructionAlignment = 2;
+static constexpr size_t kArm64InstructionAlignment = 4;
+static constexpr size_t kX86InstructionAlignment = 1;
+static constexpr size_t kX86_64InstructionAlignment = 1;
+static constexpr size_t kMipsInstructionAlignment = 2;
+static constexpr size_t kMips64InstructionAlignment = 2;
+
const char* GetInstructionSetString(InstructionSet isa);
// Note: Returns kNone when the string cannot be parsed to a known value.
}
}
+ALWAYS_INLINE static inline constexpr size_t GetInstructionSetInstructionAlignment(
+ InstructionSet isa) {
+ return (isa == kThumb2 || isa == kArm) ? kThumb2InstructionAlignment :
+ (isa == kArm64) ? kArm64InstructionAlignment :
+ (isa == kX86) ? kX86InstructionAlignment :
+ (isa == kX86_64) ? kX86_64InstructionAlignment :
+ (isa == kMips) ? kMipsInstructionAlignment :
+ (isa == kMips64) ? kMips64InstructionAlignment :
+ 0; // Invalid case, but constexpr doesn't support asserts.
+}
+
static inline bool IsValidInstructionSet(InstructionSet isa) {
switch (isa) {
case kArm:
EXPECT_STREQ("none", GetInstructionSetString(kNone));
}
+TEST(InstructionSetTest, GetInstructionSetInstructionAlignment) {
+ EXPECT_EQ(GetInstructionSetInstructionAlignment(kThumb2), kThumb2InstructionAlignment);
+ EXPECT_EQ(GetInstructionSetInstructionAlignment(kArm64), kArm64InstructionAlignment);
+ EXPECT_EQ(GetInstructionSetInstructionAlignment(kX86), kX86InstructionAlignment);
+ EXPECT_EQ(GetInstructionSetInstructionAlignment(kX86_64), kX86_64InstructionAlignment);
+ EXPECT_EQ(GetInstructionSetInstructionAlignment(kMips), kMipsInstructionAlignment);
+ EXPECT_EQ(GetInstructionSetInstructionAlignment(kMips64), kMips64InstructionAlignment);
+}
+
TEST(InstructionSetTest, TestRoundTrip) {
EXPECT_EQ(kRuntimeISA, GetInstructionSetFromString(GetInstructionSetString(kRuntimeISA)));
}
}
}
- native_pc = stack_map.GetNativePcOffset(encoding.stack_map_encoding) +
+ native_pc = stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA) +
osr_method->GetEntryPoint();
VLOG(jit) << "Jumping to "
<< method_name
class PACKED(4) OatHeader {
public:
static constexpr uint8_t kOatMagic[] = { 'o', 'a', 't', '\n' };
- static constexpr uint8_t kOatVersion[] = { '1', '0', '2', '\0' }; // Enabling CC
+ static constexpr uint8_t kOatVersion[] = { '1', '0', '3', '\0' }; // Native pc change
static constexpr const char* kImageLocationKey = "image-location";
static constexpr const char* kDex2OatCmdLineKey = "dex2oat-cmdline";
: code_info.GetStackMapForDexPc(dex_pc, encoding);
if (stack_map.IsValid()) {
return reinterpret_cast<uintptr_t>(entry_point) +
- stack_map.GetNativePcOffset(encoding.stack_map_encoding);
+ stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA);
}
if (abort_on_failure) {
ScopedObjectAccess soa(Thread::Current());
void CodeInfo::Dump(VariableIndentationOutputStream* vios,
uint32_t code_offset,
uint16_t number_of_dex_registers,
- bool dump_stack_maps) const {
+ bool dump_stack_maps,
+ InstructionSet instruction_set) const {
CodeInfoEncoding encoding = ExtractEncoding();
size_t number_of_stack_maps = GetNumberOfStackMaps(encoding);
vios->Stream()
encoding,
code_offset,
number_of_dex_registers,
+ instruction_set,
" " + std::to_string(i));
}
}
const CodeInfoEncoding& encoding,
uint32_t code_offset,
uint16_t number_of_dex_registers,
+ InstructionSet instruction_set,
const std::string& header_suffix) const {
StackMapEncoding stack_map_encoding = encoding.stack_map_encoding;
+ const uint32_t pc_offset = GetNativePcOffset(stack_map_encoding, instruction_set);
vios->Stream()
<< "StackMap" << header_suffix
<< std::hex
- << " [native_pc=0x" << code_offset + GetNativePcOffset(stack_map_encoding) << "]"
+ << " [native_pc=0x" << code_offset + pc_offset << "]"
<< " (dex_pc=0x" << GetDexPc(stack_map_encoding)
- << ", native_pc_offset=0x" << GetNativePcOffset(stack_map_encoding)
+ << ", native_pc_offset=0x" << pc_offset
<< ", dex_register_map_offset=0x" << GetDexRegisterMapOffset(stack_map_encoding)
<< ", inline_info_offset=0x" << GetInlineDescriptorOffset(stack_map_encoding)
<< ", register_mask=0x" << GetRegisterMask(stack_map_encoding)
#ifndef ART_RUNTIME_STACK_MAP_H_
#define ART_RUNTIME_STACK_MAP_H_
+#include "arch/code_offset.h"
#include "base/bit_vector.h"
#include "base/bit_utils.h"
#include "dex_file.h"
encoding.GetDexPcEncoding().Store(region_, dex_pc);
}
- ALWAYS_INLINE uint32_t GetNativePcOffset(const StackMapEncoding& encoding) const {
- return encoding.GetNativePcEncoding().Load(region_);
+ ALWAYS_INLINE uint32_t GetNativePcOffset(const StackMapEncoding& encoding,
+ InstructionSet instruction_set) const {
+ CodeOffset offset(
+ CodeOffset::FromCompressedOffset(encoding.GetNativePcEncoding().Load(region_)));
+ return offset.Uint32Value(instruction_set);
}
- ALWAYS_INLINE void SetNativePcOffset(const StackMapEncoding& encoding, uint32_t native_pc_offset) {
- encoding.GetNativePcEncoding().Store(region_, native_pc_offset);
+ ALWAYS_INLINE void SetNativePcCodeOffset(const StackMapEncoding& encoding,
+ CodeOffset native_pc_offset) {
+ encoding.GetNativePcEncoding().Store(region_, native_pc_offset.CompressedValue());
}
ALWAYS_INLINE uint32_t GetDexRegisterMapOffset(const StackMapEncoding& encoding) const {
const CodeInfoEncoding& encoding,
uint32_t code_offset,
uint16_t number_of_dex_registers,
+ InstructionSet instruction_set,
const std::string& header_suffix = "") const;
// Special (invalid) offset for the DexRegisterMapOffset field meaning
if (stack_map.GetDexPc(stack_map_encoding) == dex_pc) {
StackMap other = GetStackMapAt(i + 1, encoding);
if (other.GetDexPc(stack_map_encoding) == dex_pc &&
- other.GetNativePcOffset(stack_map_encoding) ==
- stack_map.GetNativePcOffset(stack_map_encoding)) {
+ other.GetNativePcOffset(stack_map_encoding, kRuntimeISA) ==
+ stack_map.GetNativePcOffset(stack_map_encoding, kRuntimeISA)) {
DCHECK_EQ(other.GetDexRegisterMapOffset(stack_map_encoding),
stack_map.GetDexRegisterMapOffset(stack_map_encoding));
DCHECK(!stack_map.HasInlineInfo(stack_map_encoding));
if (i < e - 2) {
// Make sure there are not three identical stack maps following each other.
- DCHECK_NE(stack_map.GetNativePcOffset(stack_map_encoding),
- GetStackMapAt(i + 2, encoding).GetNativePcOffset(stack_map_encoding));
+ DCHECK_NE(
+ stack_map.GetNativePcOffset(stack_map_encoding, kRuntimeISA),
+ GetStackMapAt(i + 2, encoding).GetNativePcOffset(stack_map_encoding, kRuntimeISA));
}
return stack_map;
}
// we could do binary search.
for (size_t i = 0, e = GetNumberOfStackMaps(encoding); i < e; ++i) {
StackMap stack_map = GetStackMapAt(i, encoding);
- if (stack_map.GetNativePcOffset(encoding.stack_map_encoding) == native_pc_offset) {
+ if (stack_map.GetNativePcOffset(encoding.stack_map_encoding, kRuntimeISA) ==
+ native_pc_offset) {
return stack_map;
}
}
void Dump(VariableIndentationOutputStream* vios,
uint32_t code_offset,
uint16_t number_of_dex_registers,
- bool dump_stack_maps) const;
+ bool dump_stack_maps,
+ InstructionSet instruction_set) const;
// Check that the code info has valid stack map and abort if it does not.
void AssertValidStackMap(const CodeInfoEncoding& encoding) const {
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