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https://github.com/genodelabs/genode.git
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libc: simplify initialization sequence
This patch reverts the interim patch "libc: init malloc_heap before VFS", which is no longer needed with the solved issue #3496 and issue #3487.
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@ -58,15 +58,16 @@ class Libc::Env_implementation : public Libc::Env, public Config_accessor
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private:
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Genode::Env &_env;
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Genode::Xml_node const _config;
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Genode::Attached_rom_dataspace _config { _env, "config" };
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Genode::Xml_node _vfs_config()
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{
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try { return _config.sub_node("vfs"); }
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try { return _config.xml().sub_node("vfs"); }
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catch (Genode::Xml_node::Nonexistent_sub_node) { }
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try {
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Genode::Xml_node node =
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_config.sub_node("libc").sub_node("vfs");
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_config.xml().sub_node("libc").sub_node("vfs");
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Genode::warning("'<config> <libc> <vfs/>' is deprecated, "
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"please move to '<config> <vfs/>'");
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return node;
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@ -78,7 +79,7 @@ class Libc::Env_implementation : public Libc::Env, public Config_accessor
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Genode::Xml_node _libc_config()
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{
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try { return _config.sub_node("libc"); }
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try { return _config.xml().sub_node("libc"); }
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catch (Genode::Xml_node::Nonexistent_sub_node) { }
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return Genode::Xml_node("<libc/>");
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@ -87,12 +88,12 @@ class Libc::Env_implementation : public Libc::Env, public Config_accessor
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Vfs::Simple_env _vfs_env;
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Genode::Xml_node _config_xml() const override {
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return _config; };
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return _config.xml(); };
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public:
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Env_implementation(Genode::Env &env, Genode::Allocator &alloc, Genode::Xml_node config)
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: _env(env), _config(config), _vfs_env(_env, alloc, _vfs_config()) { }
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Env_implementation(Genode::Env &env, Genode::Allocator &alloc)
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: _env(env), _vfs_env(_env, alloc, _vfs_config()) { }
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/*************************
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@ -110,7 +111,7 @@ class Libc::Env_implementation : public Libc::Env, public Config_accessor
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** Libc::Config_accessor interface **
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*************************************/
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Xml_node config() const override { return _config; }
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Xml_node config() const override { return _config.xml(); }
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/***************************
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@ -465,28 +466,11 @@ struct Libc::Kernel final : Vfs::Io_response_handler,
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*/
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void reset_malloc_heap() override;
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Genode::Attached_rom_dataspace _config_ds { _env, "config" };
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Xml_node const _config = _config_ds.xml();
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Env_implementation _libc_env { _env, _heap };
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Vfs_plugin _vfs { _libc_env, _heap, *this };
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bool const _cloned = _config.has_sub_node("libc") &&
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_config.sub_node("libc").attribute_value("cloned", false);
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void _init_malloc_heap()
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{
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if (_cloned)
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return;
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_malloc_heap.construct(*_malloc_ram, _env.rm());
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init_malloc(*_malloc_heap);
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}
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bool const _malloc_heap_initialized = (_init_malloc_heap(), true);
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Env_implementation _libc_env { _env, _heap, _config };
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pid_t const _pid = _libc_env.libc_config().attribute_value("pid", 0U);
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Vfs_plugin _vfs { _libc_env, _heap, *this };
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bool const _cloned = _libc_env.libc_config().attribute_value("cloned", false);
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pid_t const _pid = _libc_env.libc_config().attribute_value("pid", 0U);
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Genode::Reconstructible<Genode::Io_signal_handler<Kernel>> _resume_main_handler {
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_env.ep(), *this, &Kernel::_resume_main };
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@ -723,9 +707,14 @@ struct Libc::Kernel final : Vfs::Io_response_handler,
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{
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_env.ep().register_io_progress_handler(*this);
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if (_cloned)
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if (_cloned) {
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_clone_state_from_parent();
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} else {
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_malloc_heap.construct(*_malloc_ram, _env.rm());
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init_malloc(*_malloc_heap);
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}
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Libc::init_fork(_env, _libc_env, _heap, *_malloc_heap, _pid);
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Libc::init_execve(_env, _heap, _user_stack, *this);
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