105 lines
3.0 KiB
PHP
105 lines
3.0 KiB
PHP
<?php
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namespace Targets\TargetDescriptionFiles;
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require_once __DIR__ . "/AddressRange.php";
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require_once __DIR__ . "/MemorySegmentType.php";
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require_once __DIR__ . "/MemorySegmentSection.php";
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class MemorySegment
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{
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public ?string $key = null;
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public ?string $name = null;
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public ?MemorySegmentType $type = null;
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public ?AddressRange $addressRange = null;
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public ?int $addressSpaceUnitSize = null;
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public ?int $pageSize = null;
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public ?string $access = null;
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public ?bool $executable = null;
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/** @var MemorySegmentSection[] */
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public array $sections = [];
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public function __construct(
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?string $key,
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?string $name,
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?MemorySegmentType $type,
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?int $startAddress,
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?int $size,
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?int $addressSpaceUnitSize,
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?int $pageSize,
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?string $access,
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array $sections,
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?bool $executable
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) {
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$this->key = $key;
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$this->name = $name;
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$this->type = $type;
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$this->addressRange = is_numeric($startAddress) && is_numeric($size)
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? new AddressRange(
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$startAddress,
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$startAddress + ($size / ($addressSpaceUnitSize ?? 1)) - 1
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)
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: null;
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$this->addressSpaceUnitSize = $addressSpaceUnitSize;
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$this->pageSize = $pageSize;
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$this->access = $access;
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$this->sections = $sections;
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$this->executable = $executable;
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}
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public function size(): ?int
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{
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return $this->addressRange instanceof AddressRange
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? $this->addressRange->size() * ($this->addressSpaceUnitSize ?? 1)
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: null;
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}
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public function getSection(string $sectionId): ?MemorySegmentSection
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{
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foreach ($this->sections as $section) {
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if ($section->key !== $sectionId) {
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continue;
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}
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return $section;
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}
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return null;
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}
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public function getInnermostSectionContainingAddressRange(AddressRange $range)
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: ?MemorySegmentSection {
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foreach ($this->sections as $section) {
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if ($section->containsAddressRange($range)) {
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return $section->getInnermostSubSectionContainingAddressRange($range);
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}
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}
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return null;
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}
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public function contains(MemorySegment $other): bool
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{
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return $this->addressRange instanceof AddressRange && $this->addressRange->contains($other->addressRange);
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}
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public function intersectsWith(MemorySegment $other): bool
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{
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return
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$this->addressRange instanceof AddressRange
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&& $other->addressRange instanceof AddressRange
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&& $this->addressRange->intersectsWith($other->addressRange)
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;
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}
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public function totalSectionSize(): int
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{
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return array_sum(
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array_map(
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fn (MemorySegmentSection $section): int => (int) $section->size(),
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$this->sections
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)
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);
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}
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}
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