Method startProcess

source/kernel/kprocess.cpp:544–616

}

KThread* KProcess::startProcess(BString currentDirectory, const std::vector<BString>& argValues, const std::vector<BString>& envValues, int userId, int groupId, int effectiveUserId, int effectiveGroupId) {
    std::shared_ptr<FsNode> node = Fs::getNodeFromLocalPath(currentDirectory, argValues[0], true);

    if (!node) {
        kwarn_fmt("Could not find %s", argValues[0].c_str());
        return nullptr;
    }

    BString interpreter;
    BString loader;
    std::vector<BString> interpreterArgs;
    std::vector<BString> args;
    std::vector<BString> env;
    this->memory = KMemory::create(this);
    KThread* thread = this->createThread();
    BString name;

    KThread::setCurrentThread(thread);
    thread->setupStack();
    this->parentId = 1;
    this->userId = userId;
    this->effectiveUserId = effectiveUserId;
    this->groupId = groupId;	
    this->effectiveGroupId = effectiveGroupId;
    this->setupCommandlineNode();
    this->exe = argValues[0];
    this->name = Fs::getFileNameFromPath(this->exe);
    
    for (U32 i=0;i<argValues.size();i++) {
        if (i>0)
            this->commandLine+=" ";
        this->commandLine+=argValues[i];
    }
    
    this->initStdio();
    FsOpenNode* openNode=ElfLoader::inspectNode(currentDirectory, node, loader, interpreter, interpreterArgs);
    if (!openNode) {
        return nullptr;
    }    
    if (ElfLoader::loadProgram(thread, openNode, &thread->cpu->eip.u32)) {
        // :TODO: why will it crash in strchr libc if I remove this
        //syscall_mmap64(thread, ADDRESS_PROCESS_LOADER << PAGE_SHIFT, 4096, K_PROT_READ | K_PROT_WRITE, K_MAP_ANONYMOUS|K_MAP_PRIVATE, -1, 0);
        
        if (loader.length())
            args.push_back(loader);
        if (interpreter.length()) {
            exe = interpreter;
            args.push_back(interpreter);
        }
        args.push_back(BString(Fs::getFullPath(currentDirectory, argValues[0])));
        for (U32 i=1;i<argValues.size();i++) {
            args.push_back(argValues[i]);
        }
        for (U32 i=0;i<envValues.size();i++) {
            env.push_back(envValues[i]);
        }
        setupThreadStack(thread, thread->cpu, this->name, args, env);