|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* This file is part of the reliforp/reli-prof package. |
|
5
|
|
|
* |
|
6
|
|
|
* (c) sji <[email protected]> |
|
7
|
|
|
* |
|
8
|
|
|
* For the full copyright and license information, please view the LICENSE |
|
9
|
|
|
* file that was distributed with this source code. |
|
10
|
|
|
*/ |
|
11
|
|
|
|
|
12
|
|
|
declare(strict_types=1); |
|
13
|
|
|
|
|
14
|
|
|
namespace Reli\Lib\Elf\Process; |
|
15
|
|
|
|
|
16
|
|
|
use Reli\Lib\Elf\Parser\ElfParserException; |
|
17
|
|
|
use Reli\Lib\Elf\SymbolResolver\SymbolResolverCreatorInterface; |
|
18
|
|
|
use Reli\Lib\Process\MemoryMap\ProcessMemoryMap; |
|
19
|
|
|
use Reli\Lib\Process\MemoryMap\ProcessModuleMemoryMap; |
|
20
|
|
|
use Reli\Lib\Process\MemoryReader\MemoryReaderInterface; |
|
21
|
|
|
|
|
22
|
|
|
final class ProcessModuleSymbolReaderCreator |
|
23
|
|
|
{ |
|
24
|
|
|
public function __construct( |
|
25
|
|
|
private SymbolResolverCreatorInterface $symbol_resolver_creator, |
|
26
|
|
|
private MemoryReaderInterface $memory_reader |
|
27
|
|
|
) { |
|
28
|
|
|
} |
|
29
|
|
|
|
|
30
|
|
|
public function createModuleReaderByNameRegex( |
|
31
|
|
|
int $pid, |
|
32
|
|
|
ProcessMemoryMap $process_memory_map, |
|
33
|
|
|
string $regex, |
|
34
|
|
|
?string $binary_path, |
|
35
|
|
|
?int $tls_block_address = null |
|
36
|
|
|
): ?ProcessModuleSymbolReader { |
|
37
|
|
|
$memory_areas = $process_memory_map->findByNameRegex($regex); |
|
38
|
|
|
if ($memory_areas === []) { |
|
39
|
|
|
return null; |
|
40
|
|
|
} |
|
41
|
|
|
$module_memory_map = new ProcessModuleMemoryMap($memory_areas); |
|
42
|
|
|
|
|
43
|
|
|
$module_name = current($memory_areas)->name; |
|
44
|
|
|
$path = $binary_path ?? $this->createContainerAwarePath($pid, $module_name); |
|
45
|
|
|
try { |
|
46
|
|
|
$symbol_resolver = $this->symbol_resolver_creator->createLinearScanResolverFromPath($path); |
|
47
|
|
|
return new ProcessModuleSymbolReader( |
|
48
|
|
|
$pid, |
|
49
|
|
|
$symbol_resolver, |
|
50
|
|
|
$module_memory_map, |
|
51
|
|
|
$this->memory_reader, |
|
52
|
|
|
$tls_block_address |
|
53
|
|
|
); |
|
54
|
|
|
} catch (ElfParserException $e) { |
|
55
|
|
|
try { |
|
56
|
|
|
$symbol_resolver = $this->symbol_resolver_creator->createDynamicResolverFromPath($path); |
|
57
|
|
|
return new ProcessModuleSymbolReader( |
|
58
|
|
|
$pid, |
|
59
|
|
|
$symbol_resolver, |
|
60
|
|
|
$module_memory_map, |
|
61
|
|
|
$this->memory_reader, |
|
62
|
|
|
$tls_block_address |
|
63
|
|
|
); |
|
64
|
|
|
} catch (ElfParserException $e) { |
|
65
|
|
|
$symbol_resolver = $this->symbol_resolver_creator->createDynamicResolverFromProcessMemory( |
|
66
|
|
|
$this->memory_reader, |
|
67
|
|
|
$pid, |
|
68
|
|
|
$module_memory_map |
|
69
|
|
|
); |
|
70
|
|
|
return new ProcessModuleSymbolReader( |
|
71
|
|
|
$pid, |
|
72
|
|
|
$symbol_resolver, |
|
73
|
|
|
$module_memory_map, |
|
74
|
|
|
$this->memory_reader, |
|
75
|
|
|
$tls_block_address |
|
76
|
|
|
); |
|
77
|
|
|
} |
|
78
|
|
|
} |
|
79
|
|
|
} |
|
80
|
|
|
|
|
81
|
|
|
private function createContainerAwarePath(int $pid, string $path): string |
|
82
|
|
|
{ |
|
83
|
|
|
return "/proc/{$pid}/root{$path}"; |
|
84
|
|
|
} |
|
85
|
|
|
} |
|
86
|
|
|
|
reliforp /
reli-prof
