Function verifyBaseAddress

src/symbols_linux.cpp:842–851

Check that the base address of the shared object has not changed

// Check that the base address of the shared object has not changed
static bool verifyBaseAddress(const CodeCache* cc, void* lib_handle) {
    Dl_info dl_info;
    struct link_map* map;

    if (dlinfo(lib_handle, RTLD_DI_LINKMAP, &map) != 0 || dladdr(map->l_ld, &dl_info) == 0) {
        return false;
    }

    return cc->imageBase() == (const char*)dl_info.dli_fbase;
}

UnloadProtection::UnloadProtection(const CodeCache *cc) {
    if (OS::isMusl() || isMainExecutable(cc->imageBase(), cc->maxAddress()) || isLoader(cc->imageBase())) {