mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-11-06 13:30:00 +00:00
Yunus Shaikh
60baf80572
Release builds fold a declared function's address compared with nullptr to false, so the tables' loops compiled away together with the tables' references to the exports, and the checks passed without the library exporting anything. Each test now gets its library's built file from its add_test line, opens it, looks up every name in its table, and requires one name the library doesn't export not to resolve. The table entries are read through a volatile copy, so the test binaries keep importing them.
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#pragma once
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#include <cstddef>
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#include <cstdio>
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <dlfcn.h>
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#endif
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inline bool LibraryExportsName(void* library, const char* name) {
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#ifdef _WIN32
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return GetProcAddress(static_cast<HMODULE>(library), name) != nullptr;
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#else
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return dlsym(library, name) != nullptr;
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#endif
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}
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template <typename Export, std::size_t Count>
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bool ExportsResolveByName(const char* path, const Export (&exports)[Count], const char* absentName) {
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if (path == nullptr) {
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std::fprintf(stderr, "no library path was given\n");
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return false;
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}
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#ifdef _WIN32
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void* library = LoadLibraryA(path);
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#else
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void* library = dlopen(path, RTLD_NOW | RTLD_LOCAL);
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#endif
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if (library == nullptr) {
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std::fprintf(stderr, "%s did not load\n", path);
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return false;
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}
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for (const auto& entry : exports) {
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auto* volatile function = entry.function;
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if (function == nullptr || !LibraryExportsName(library, entry.name)) {
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std::fprintf(stderr, "%s is not exported\n", entry.name);
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return false;
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}
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}
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if (LibraryExportsName(library, absentName)) {
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std::fprintf(stderr, "%s resolved although nothing exports it\n", absentName);
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return false;
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}
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return true;
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}
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