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/*
* Copyright (C) 2011 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.
*/
#include "compiled_method.h"
#include "driver/compiler_driver.h"
namespace art {
CompiledCode::CompiledCode(CompilerDriver* compiler_driver, InstructionSet instruction_set,
const ArrayRef<const uint8_t>& quick_code, bool owns_code_array)
: compiler_driver_(compiler_driver), instruction_set_(instruction_set),
owns_code_array_(owns_code_array), quick_code_(nullptr) {
SetCode(&quick_code);
}
void CompiledCode::SetCode(const ArrayRef<const uint8_t>* quick_code) {
if (quick_code != nullptr) {
CHECK(!quick_code->empty());
if (owns_code_array_) {
// If we are supposed to own the code, don't deduplicate it.
CHECK(quick_code_ == nullptr);
quick_code_ = new SwapVector<uint8_t>(quick_code->begin(), quick_code->end(),
compiler_driver_->GetSwapSpaceAllocator());
} else {
quick_code_ = compiler_driver_->DeduplicateCode(*quick_code);
}
}
}
CompiledCode::~CompiledCode() {
if (owns_code_array_) {
delete quick_code_;
}
}
bool CompiledCode::operator==(const CompiledCode& rhs) const {
if (quick_code_ != nullptr) {
if (rhs.quick_code_ == nullptr) {
return false;
} else if (quick_code_->size() != rhs.quick_code_->size()) {
return false;
} else {
return std::equal(quick_code_->begin(), quick_code_->end(), rhs.quick_code_->begin());
}
}
return (rhs.quick_code_ == nullptr);
}
size_t CompiledCode::AlignCode(size_t offset) const {
return AlignCode(offset, instruction_set_);
}
size_t CompiledCode::AlignCode(size_t offset, InstructionSet instruction_set) {
return RoundUp(offset, GetInstructionSetAlignment(instruction_set));
}
size_t CompiledCode::CodeDelta() const {
return CodeDelta(instruction_set_);
}
size_t CompiledCode::CodeDelta(InstructionSet instruction_set) {
switch (instruction_set) {
case kArm:
case kArm64:
case kMips:
case kMips64:
case kX86:
case kX86_64:
return 0;
case kThumb2: {
// +1 to set the low-order bit so a BLX will switch to Thumb mode
return 1;
}
default:
LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
return 0;
}
}
const void* CompiledCode::CodePointer(const void* code_pointer,
InstructionSet instruction_set) {
switch (instruction_set) {
case kArm:
case kArm64:
case kMips:
case kMips64:
case kX86:
case kX86_64:
return code_pointer;
case kThumb2: {
uintptr_t address = reinterpret_cast<uintptr_t>(code_pointer);
// Set the low-order bit so a BLX will switch to Thumb mode
address |= 0x1;
return reinterpret_cast<const void*>(address);
}
default:
LOG(FATAL) << "Unknown InstructionSet: " << instruction_set;
return nullptr;
}
}
const std::vector<uint32_t>& CompiledCode::GetOatdataOffsetsToCompliledCodeOffset() const {
CHECK_NE(0U, oatdata_offsets_to_compiled_code_offset_.size());
return oatdata_offsets_to_compiled_code_offset_;
}
void CompiledCode::AddOatdataOffsetToCompliledCodeOffset(uint32_t offset) {
oatdata_offsets_to_compiled_code_offset_.push_back(offset);
}
CompiledMethod::CompiledMethod(CompilerDriver* driver,
InstructionSet instruction_set,
const ArrayRef<const uint8_t>& quick_code,
const size_t frame_size_in_bytes,
const uint32_t core_spill_mask,
const uint32_t fp_spill_mask,
DefaultSrcMap* src_mapping_table,
const ArrayRef<const uint8_t>& mapping_table,
const ArrayRef<const uint8_t>& vmap_table,
const ArrayRef<const uint8_t>& native_gc_map,
const ArrayRef<const uint8_t>& cfi_info,
const ArrayRef<const LinkerPatch>& patches)
: CompiledCode(driver, instruction_set, quick_code, !driver->DedupeEnabled()),
owns_arrays_(!driver->DedupeEnabled()),
frame_size_in_bytes_(frame_size_in_bytes), core_spill_mask_(core_spill_mask),
fp_spill_mask_(fp_spill_mask),
patches_(patches.begin(), patches.end(), driver->GetSwapSpaceAllocator()) {
if (owns_arrays_) {
if (src_mapping_table == nullptr) {
src_mapping_table_ = new SwapSrcMap(driver->GetSwapSpaceAllocator());
} else {
src_mapping_table_ = new SwapSrcMap(src_mapping_table->begin(), src_mapping_table->end(),
driver->GetSwapSpaceAllocator());
}
mapping_table_ = mapping_table.empty() ?
nullptr : new SwapVector<uint8_t>(mapping_table.begin(), mapping_table.end(),
driver->GetSwapSpaceAllocator());
vmap_table_ = new SwapVector<uint8_t>(vmap_table.begin(), vmap_table.end(),
driver->GetSwapSpaceAllocator());
gc_map_ = native_gc_map.empty() ? nullptr :
new SwapVector<uint8_t>(native_gc_map.begin(), native_gc_map.end(),
driver->GetSwapSpaceAllocator());
cfi_info_ = cfi_info.empty() ? nullptr :
new SwapVector<uint8_t>(cfi_info.begin(), cfi_info.end(), driver->GetSwapSpaceAllocator());
} else {
src_mapping_table_ = src_mapping_table == nullptr ?
driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>()) :
driver->DeduplicateSrcMappingTable(ArrayRef<SrcMapElem>(*src_mapping_table));
mapping_table_ = mapping_table.empty() ?
nullptr : driver->DeduplicateMappingTable(mapping_table);
vmap_table_ = driver->DeduplicateVMapTable(vmap_table);
gc_map_ = native_gc_map.empty() ? nullptr : driver->DeduplicateGCMap(native_gc_map);
cfi_info_ = cfi_info.empty() ? nullptr : driver->DeduplicateCFIInfo(cfi_info);
}
}
CompiledMethod* CompiledMethod::SwapAllocCompiledMethod(
CompilerDriver* driver,
InstructionSet instruction_set,
const ArrayRef<const uint8_t>& quick_code,
const size_t frame_size_in_bytes,
const uint32_t core_spill_mask,
const uint32_t fp_spill_mask,
DefaultSrcMap* src_mapping_table,
const ArrayRef<const uint8_t>& mapping_table,
const ArrayRef<const uint8_t>& vmap_table,
const ArrayRef<const uint8_t>& native_gc_map,
const ArrayRef<const uint8_t>& cfi_info,
const ArrayRef<const LinkerPatch>& patches) {
SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
CompiledMethod* ret = alloc.allocate(1);
alloc.construct(ret, driver, instruction_set, quick_code, frame_size_in_bytes, core_spill_mask,
fp_spill_mask, src_mapping_table, mapping_table, vmap_table, native_gc_map,
cfi_info, patches);
return ret;
}
void CompiledMethod::ReleaseSwapAllocatedCompiledMethod(CompilerDriver* driver, CompiledMethod* m) {
SwapAllocator<CompiledMethod> alloc(driver->GetSwapSpaceAllocator());
alloc.destroy(m);
alloc.deallocate(m, 1);
}
CompiledMethod::~CompiledMethod() {
if (owns_arrays_) {
delete src_mapping_table_;
delete mapping_table_;
delete vmap_table_;
delete gc_map_;
delete cfi_info_;
}
}
} // namespace art
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