void MachOObject::postConstruct()
{
detectAbsolutePath();
m_header = m_file->header();
for (std::string rpath : m_file->rpaths())
{
if (rpath.compare(0, 16, "@executable_path") == 0)
{
if (isMainModule())
rpath.replace(0, 16, directory());
else
{
MachOObject* mainModule = MachOMgr::instance()->mainModule();
if (!mainModule)
throw std::runtime_error("Cannot resolve @executable_path without a main module");
rpath.replace(0, 16, mainModule->directory());
}
}
else if (rpath.compare(0, 12, "@loader_path") == 0)
{
rpath = expandLoaderPath(rpath, this);
}
m_rpaths.push_back(rpath);
}
m_bindAllAtLoad = MachOMgr::instance()->bindAtLaunch();
}
std::string DylibSearch::resolve(std::string dylib, MachOObject* requester)
{
if (dylib.empty())
return std::string();
// expand @rpath, @executable_path and @loader_path
if (requester != nullptr && dylib[0] == '@')
{
if (dylib.compare(0, 16, "@executable_path") == 0)
{
MachOObject* mainModule = MachOMgr::instance()->mainModule();
if (!mainModule)
throw std::runtime_error("Cannot resolve @executable_path without a main module");
dylib.replace(0, 16, mainModule->directory());
}
else if (dylib.compare(0, 12, "@loader_path") == 0)
{
dylib.replace(0, 12, requester->directory());
}
else if (dylib.compare(0, 6, "@rpath") == 0)
{
return resolveViaRpath(dylib, requester);
}
}
// Search in configuration
if (const char* aliasTarget = resolveAlias(dylib))
{
std::string p;
if (!strchr(aliasTarget, '/'))
{
p = LIB_PATH;
p += '/';
p += aliasTarget;
// std::cout << p << std::endl;
}
return p;
}
// Search in extra paths
std::string epath;
epath = resolveInPathList(dylib, m_extraPaths);
if (!epath.empty())
return epath;
// Search in DYLD_LIBRARY_PATH
epath = resolveInLdPath(dylib);
if (!epath.empty())
return epath;
// Try the path as is
epath = checkPresence(dylib);
if (!epath.empty())
return epath;
// If absolute, search in sysroot
if (dylib[0] == '/')
{
const char* prefix = __prefix_get();
if (!MachOMgr::instance()->sysRoot().empty())
{
std::vector<std::string> roots = string_explode(MachOMgr::instance()->sysRoot(), ':');
for (const std::string& in_path : roots)
{
std::string path;
if (prefix != nullptr)
path = prefix;
path += in_path;
path += '/';
path += dylib;
epath = checkPresence(path);
if (!epath.empty())
return epath;
}
}
if (prefix != nullptr)
{
std::string path = prefix;
path += dylib;
epath = checkPresence(path);
if (!epath.empty())
return epath;
}
}
/*if (MachOMgr::instance()->ignoreMissingDependencies())
{
}*/
return std::string();
}
std::string DylibSearch::resolve(std::string dylib, MachOObject* requester)
{
if (dylib.empty())
return std::string();
// expand @rpath, @executable_path and @loader_path
if (requester != nullptr && dylib[0] == '@')
{
if (dylib.compare(0, 16, "@executable_path") == 0)
{
MachOObject* mainModule = MachOMgr::instance()->mainModule();
if (!mainModule)
throw std::runtime_error("Cannot resolve @executable_path without a main module");
dylib.replace(0, 16, mainModule->directory());
}
else if (dylib.compare(0, 12, "@loader_path") == 0)
{
dylib.replace(0, 12, requester->directory());
}
else if (dylib.compare(0, 6, "@rpath") == 0)
{
return resolveViaRpath(dylib, requester);
}
}
// Search in configuration
if (const char* aliasTarget = resolveAlias(dylib))
return aliasTarget;
// Search in extra paths
std::string epath;
epath = resolveInPathList(dylib, m_extraPaths);
if (!epath.empty())
return epath;
// Search in DYLD_LIBRARY_PATH
epath = resolveInLdPath(dylib);
if (!epath.empty())
return epath;
// Try the path as is
epath = checkPresence(dylib);
if (!epath.empty())
return epath;
// If absolute, search in sysroot
if (dylib[0] == '/' && !MachOMgr::instance()->sysRoot().empty())
{
std::string path = MachOMgr::instance()->sysRoot();
path += '/';
path += dylib;
epath = checkPresence(path);
if (!epath.empty())
return epath;
}
return std::string();
}