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<?php |
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/** |
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* This file is part of the sj-i/php-profiler package. |
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* |
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* (c) sji <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace PhpProfiler\Lib\Elf\Process; |
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use PhpProfiler\Lib\Elf\Parser\ElfParserException; |
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use PhpProfiler\Lib\Elf\SymbolResolver\SymbolResolverCreator; |
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use PhpProfiler\Lib\Process\MemoryMap\ProcessMemoryMap; |
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use PhpProfiler\Lib\Process\MemoryReader\MemoryReaderInterface; |
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/** |
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* Class ProcessModuleSymbolReaderCreator |
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* @package PhpProfiler\ProcessReader |
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*/ |
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final class ProcessModuleSymbolReaderCreator |
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{ |
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private SymbolResolverCreator $symbol_resolver_creator; |
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private MemoryReaderInterface $memory_reader; |
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/** |
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* ProcessSymbolReaderCreator constructor. |
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* |
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* @param SymbolResolverCreator $symbol_resolver_creator |
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* @param MemoryReaderInterface $memory_reader |
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*/ |
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public function __construct( |
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SymbolResolverCreator $symbol_resolver_creator, |
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MemoryReaderInterface $memory_reader |
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) { |
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$this->symbol_resolver_creator = $symbol_resolver_creator; |
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$this->memory_reader = $memory_reader; |
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} |
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/** |
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* @param int $pid |
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* @param ProcessMemoryMap $process_memory_map |
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* @param string $regex |
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* @param int|null $tls_block_address |
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* @return ProcessModuleSymbolReader|null |
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* @throws ElfParserException |
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*/ |
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public function createModuleReaderByNameRegex( |
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int $pid, |
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ProcessMemoryMap $process_memory_map, |
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string $regex, |
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?int $tls_block_address = null |
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): ?ProcessModuleSymbolReader { |
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$memory_areas = $process_memory_map->findByNameRegex($regex); |
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if ($memory_areas === []) { |
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return null; |
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} |
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$module_name = current($memory_areas)->name; |
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$container_aware_path = $this->createContainerAwarePath($pid, $module_name); |
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try { |
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$symbol_resolver = $this->symbol_resolver_creator->createLinearScanResolverFromPath($container_aware_path); |
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return new ProcessModuleSymbolReader( |
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$pid, |
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$symbol_resolver, |
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$memory_areas, |
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$this->memory_reader, |
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$tls_block_address |
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); |
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} catch (ElfParserException $e) { |
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$symbol_resolver = $this->symbol_resolver_creator->createDynamicResolverFromPath($container_aware_path); |
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return new ProcessModuleSymbolReader( |
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$pid, |
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$symbol_resolver, |
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$memory_areas, |
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$this->memory_reader, |
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$tls_block_address |
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); |
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} |
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} |
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/** |
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* @param int $pid |
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* @param string $path |
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* @return string |
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*/ |
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private function createContainerAwarePath(int $pid, string $path): string |
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{ |
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return "/proc/{$pid}/root{$path}"; |
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} |
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} |
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sj-i /
php-profiler
