1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* Copyright (C) 2019-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/linux/os_library_linux.h"
#include "shared/source/helpers/debug_helpers.h"
#include "shared/source/os_interface/linux/sys_calls.h"
#include <cstring>
#include <dlfcn.h>
#include <link.h>
namespace NEO {
OsLibrary *OsLibrary::load(const OsLibraryCreateProperties &properties) {
auto ptr = new (std::nothrow) Linux::OsLibrary(properties);
if (ptr == nullptr) {
return nullptr;
}
if (!ptr->isLoaded()) {
delete ptr;
return nullptr;
}
return ptr;
}
const std::string OsLibrary::createFullSystemPath(const std::string &name) {
return name;
}
bool getLoadedLibVersion(const std::string &libName, const std::string ®exVersionPattern, std::string &outVersion, std::string &errReason) {
return false;
}
namespace Linux {
OsLibrary::OsLibrary(const OsLibraryCreateProperties &properties) {
if (properties.libraryName.empty() || properties.performSelfLoad) {
this->handle = SysCalls::dlopen(0, RTLD_LAZY);
} else {
auto dlopenFlag = RTLD_LAZY;
dlopenFlag = properties.customLoadFlags ? *properties.customLoadFlags : dlopenFlag;
adjustLibraryFlags(dlopenFlag);
this->handle = SysCalls::dlopen(properties.libraryName.c_str(), dlopenFlag);
if (!this->handle && (properties.errorValue != nullptr)) {
properties.errorValue->assign(dlerror());
}
}
}
OsLibrary::~OsLibrary() {
if (this->handle != nullptr) {
dlclose(this->handle);
this->handle = nullptr;
}
}
bool OsLibrary::isLoaded() {
return this->handle != nullptr;
}
void *OsLibrary::getProcAddress(const std::string &procName) {
DEBUG_BREAK_IF(this->handle == nullptr);
return dlsym(this->handle, procName.c_str());
}
std::string OsLibrary::getFullPath() {
struct link_map *map = nullptr;
int retVal = NEO::SysCalls::dlinfo(this->handle, RTLD_DI_LINKMAP, &map);
if (retVal == 0 && map != nullptr) {
return std::string(map->l_name);
}
return std::string();
}
bool isLibraryLoaded(const std::string &libraryName) {
auto handle = SysCalls::dlopen(0, RTLD_LAZY);
if (!handle) {
return false;
}
struct link_map *map = nullptr;
int retVal = NEO::SysCalls::dlinfo(handle, RTLD_DI_LINKMAP, &map);
if (retVal == 0 && map != nullptr) {
while (map) {
if (strstr(map->l_name, libraryName.c_str())) {
dlclose(handle);
return true;
}
map = map->l_next;
}
}
dlclose(handle);
return false;
}
} // namespace Linux
} // namespace NEO
|
