def collect_memsection_element(ms_el, ignore_name, namespace, image, machine, pools): """Collect the details of a memsection, or other mem obj, element.""" attrs = collect_memobj_attrs(ms_el, namespace, image, machine) # New namespace for objects living in the memsection. ms_namespace = attrs.ns_node memsect = \ weaver.cells.iguana.bootinfo.MemSection(image, machine, pools, attrs = attrs) # Add the standard caps for the memsection. create_standard_caps(memsect, ms_namespace) # Collect any custom caps for the memsection. for cap_el in ms_el.find_children("cap"): if not ignore_name.match(cap_el.name): cap = weaver.cells.iguana.bootinfo.Cap(cap_el.name) for right in cap_el.find_children("right"): cap.add_right(right.value) memsect.add_cap(cap) ms_namespace.add(cap.get_name(), cap) return memsect
def collect_memsections(self, el, space, namespace, image, machine, pools): memsection_objs = [] for memsection_el in el.find_children('memsection'): memsection_attr = \ collect_memobj_attrs(memsection_el, namespace, image, machine) memsection_ns = memsection_attr.ns_node memsection_ms = image.add_memsection(memsection_attr, machine, pools) memsection_objs.append(memsection_ms) mapping = space.register_mapping(memsection_ms.attrs) self.add_standard_mem_caps(memsection_ns, mapping, memsection_ms.attrs) return memsection_objs
def collect_thread(self, elf, el, namespace, image, machine, pools, kernel, space, entry, thread_name=None, cell_create_thread=False): """Collect the attributes of a thread element.""" if entry is None: raise MergeError, "No entry point specified for thread %s" % el.name user_main = getattr(el, 'start', entry) entry = start_to_value(entry, elf) user_main = start_to_value(user_main, elf) priority = getattr(el, 'priority', kernel.kernel.DEFAULT_PRIORITY) physpool = getattr(el, 'physpool', None) virtpool = getattr(el, 'virtpool', None) # New namespace for objects living in the thread. if thread_name == None: thread_name = el.name thread_namespace = namespace.add_namespace(thread_name) # Push the overriding pools for the thread. image.push_attrs(virtual=virtpool, physical=physpool) utcb = image.new_attrs(thread_namespace.add_namespace("utcb")) # Create the cell thread and assign the entry point thread = space.register_thread(entry, user_main, utcb, priority, create=cell_create_thread) thread_namespace.add('master', ThreadCellCap('master', thread)) # Collect the stack. Is there no element, create a fake one for # the collection code to use. stack_el = el.find_child('stack') if stack_el is None: stack_el = ParsedElement('stack') stack_attr = collect_memobj_attrs(stack_el, thread_namespace, image, machine) if stack_attr.size == None: stack_attr.size = DEFAULT_STACK_SIZE stack_ms = image.add_memsection(stack_attr, machine, pools) mapping = space.register_mapping(stack_ms.attrs) self.add_standard_mem_caps(stack_attr.ns_node, mapping, stack_attr) # Setup the stack for the new cell thread thread.stack = stack_ms.attrs thread.stack_ms = stack_ms # If this is the very first collect_thread call, we assume it is # the cell's main thread and we set the stack_ms accordingly. if self.stack_ms is None: self.stack_ms = stack_ms image.pop_attrs() return thread
def collect_xml(self, okl4_el, ignore_name, namespace, machine, pools, kernel, image): """Handle an Iguana Server Compound Object""" self.cell = \ kernel.register_cell(okl4_el.name, okl4_el.kernel_heap, max_caps = getattr(okl4_el, "caps", None), max_priority = getattr(okl4_el, "max_priority", None)) self.name = okl4_el.name self.namespace = namespace.add_namespace(self.name) self.space = \ self.cell.register_space(self.namespace, "MAIN", is_privileged = True, max_clists = getattr(okl4_el, "clists", None), max_spaces = getattr(okl4_el, "spaces", None), max_mutexes = getattr(okl4_el, "mutexes", None), max_threads = getattr(okl4_el, "threads", None), max_priority = getattr(okl4_el, "max_priority", None), plat_control = \ getattr(okl4_el, "platform_control", False)) image.push_attrs(virtual=getattr(okl4_el, "virtpool", None), physical=getattr(okl4_el, "physpool", None), pager=make_pager_attr(getattr(okl4_el, "pager", None)), direct=getattr(okl4_el, "direct", None)) (self.def_virtpool, self.def_physpool) = image.current_pools() self.collect_mutexes(okl4_el, self.namespace, self.space) env_el = okl4_el.find_child("environment") self.env = CellEnvironment(okl4_el.name, self.namespace, machine, image, kernel, self.space.mappings) if env_el != None: self._collect_environment(env_el, self.env) # Set these up now even though we can't actually assign values # till later self.phys_attrs = image.new_attrs( self.namespace.add_namespace("default_physpool")) self.phys_attrs.attach = PF_R | PF_W | PF_X self.phys_attrs.mem_type = self.phys_attrs.unmapped mapping = self.space.register_mapping(self.phys_attrs) self.env.add_physmem_segpool_entry("MAIN_PHYSMEM_SEGPOOL", mapping) self.virt_attrs = image.new_attrs( self.namespace.add_namespace("default_virtpool")) self.env.add_virtmem_pool_entry("MAIN_VIRTMEM_POOL", self.virt_attrs) self.space.utcb = image.new_attrs( self.namespace.add_namespace("main_utcb_area")) self.space.utcb.attach = PF_R filename = os.path.join(okl4_el._path, okl4_el.file) self.elf = UnpreparedElfFile(filename=filename) if self.elf.elf_type != ET_EXEC: raise MergeError("All the merged ELF files must be of EXEC type.") # Find out which version of libokl4 that the cell was built # against sym = self.elf.find_symbol("okl4_api_version") if sym == None: raise MergeError( "Unable to locate the symbol 'okl4_api_version' in file \"%s\". Cells must link with libokl4." % filename) self.api_version = self.elf.get_value(sym.value, sym.size, self.elf.endianess) if self.api_version == None: raise MergeError( "Unable to read the symbol 'okl4_api_version' in file \"%s\". Cells must link with libokl4." % filename) self.env.add_elf_info_entry(os.path.basename(okl4_el.file), image.PROGRAM, self.elf.entry_point) segment_els = okl4_el.find_children("segment") segs = collect_elf_segments(self.elf, image.PROGRAM, segment_els, filename, [], self.namespace, image, machine, pools) self.elf_prog_segments = segs for seg in segs: self.env.add_elf_segment_entry( okl4_el.name + '.' + seg.attrs.ns_node.name, seg.segment) seg_ns = seg.attrs.ns_node mapping = self.space.register_mapping(seg.attrs) self.add_standard_mem_caps(seg_ns, mapping, seg.attrs) patch_els = okl4_el.find_children("patch") collect_patches(self.elf, patch_els, filename, image) # Record any IRQs that are assigned to the initial program. for irq_el in okl4_el.find_children("irq"): self.space.register_irq(irq_el.value) self.env.add_device_irq_list("NO_DEVICE", [irq_el.value for irq_el \ in okl4_el.find_children("irq")]) # Collect the implicit thread if not hasattr(okl4_el, 'priority'): okl4_el.priority = kernel.kernel.MAX_PRIORITY threads = [] threads.append( self.collect_thread(self.elf, okl4_el, self.namespace, image, machine, pools, kernel, self.space, self.elf.entry_point, "main", True)) # FIXME: Need to check up on actual entry point's for thread_el in okl4_el.find_children("thread"): threads.append( self.collect_thread(self.elf, thread_el, self.namespace, image, machine, pools, kernel, self.space, "thread_start", cell_create_thread=True)) device_mem = \ self.collect_use_devices(okl4_el, self.space, self.namespace, image, machine, pools) memsection_objs = \ self.collect_memsections(okl4_el, self.space, self.namespace, image, machine, pools) # Collect all data for any extra spaces defined in the XML for space_el in okl4_el.find_children("space"): space_ns = self.namespace.add_namespace(space_el.name) space = self.cell.register_space(space_ns, space_el.name, max_priority = getattr(space_el, "max_priority", \ getattr(okl4_el, "max_priority", None))) image.push_attrs(virtual=getattr(space_el, "virtpool", None), physical=getattr(space_el, "physpool", None), pager=make_pager_attr( getattr(space_el, "pager", None)), direct=getattr(space_el, "direct", None)) for thread_el in space_el.find_children("thread"): threads.append( self.collect_thread(self.elf, thread_el, space_ns, image, machine, pools, kernel, space, "thread_start", cell_create_thread=True)) self.collect_mutexes(space_el, space_ns, space) device_mem.extend( self.collect_use_devices(space_el, space, space_ns, image, machine, pools)) memsection_objs.extend( self.collect_memsections(space_el, space, space_ns, image, machine, pools)) self.env.add_kspace_entry(space_el.name + "_KSPACE", space) space.utcb = image.new_attrs( space_ns.add_namespace(space_el.name + "_utcb_area")) space.utcb.attach = PF_R # Weave a kclist for the main space. main_kclist = self.env.add_kclist_entry("MAIN_KCLIST", self.cell) # Weave the root kspace object. main_kspace = self.env.add_kspace_entry("MAIN_KSPACE", self.space) # Weave the root protection domain object. self.env.add_pd_entry("MAIN_PD", self.space, main_kspace, 32, machine.min_page_size(), self.elf) # Find heap and add it heap_el = okl4_el.find_child('heap') if heap_el is None: heap_el = ParsedElement('heap') heap_attr = collect_memobj_attrs(heap_el, self.namespace, image, machine) if heap_attr.size == None: heap_attr.size = DEFAULT_HEAP_SIZE self.heap_ms = image.add_memsection(heap_attr, machine, pools) self.cell.heap = self.heap_ms.attrs mapping = self.space.register_mapping(self.heap_ms.attrs) self.add_standard_mem_caps(heap_attr.ns_node, mapping, heap_attr) self.elf_segments = \ [thread.get_stack_ms() for thread in threads] + \ [self.heap_ms] + memsection_objs + device_mem self.env.add_kernel_info_entry(0, 0, kernel) # Add command line arguments commandline_el = okl4_el.find_child("commandline") if commandline_el is not None: args = [ arg_el.value for arg_el in commandline_el.find_children("arg") ] else: args = [] self.env.add_arg_list(args) self.cell.env = self.env
def collect_thread(self, elf, el, namespace, image, machine, pools, kernel, space, entry, thread_name = None, cell_create_thread = False): """Collect the attributes of a thread element.""" if entry is None: raise MergeError, "No entry point specified for thread %s" % el.name user_main = getattr(el, 'start', entry) entry = start_to_value(entry, elf) user_main = start_to_value(user_main, elf) priority = getattr(el, 'priority', kernel.kernel.DEFAULT_PRIORITY) physpool = getattr(el, 'physpool', None) virtpool = getattr(el, 'virtpool', None) # New namespace for objects living in the thread. if thread_name == None: thread_name = el.name thread_namespace = namespace.add_namespace(thread_name) # Push the overriding pools for the thread. image.push_attrs(virtual = virtpool, physical = physpool) utcb = image.new_attrs(thread_namespace.add_namespace("utcb")) # Create the cell thread and assign the entry point thread = space.register_thread(entry, user_main, utcb, priority, create = cell_create_thread) thread_namespace.add('master', ThreadCellCap('master', thread)) # Collect the stack. Is there no element, create a fake one for # the collection code to use. stack_el = el.find_child('stack') if stack_el is None: stack_el = ParsedElement('stack') stack_attr = collect_memobj_attrs(stack_el, thread_namespace, image, machine) if stack_attr.size == None: stack_attr.size = DEFAULT_STACK_SIZE stack_ms = image.add_memsection(stack_attr, machine, pools) mapping = space.register_mapping(stack_ms.attrs) self.add_standard_mem_caps(stack_attr.ns_node, mapping, stack_attr) # Setup the stack for the new cell thread thread.stack = stack_ms.attrs thread.stack_ms = stack_ms # If this is the very first collect_thread call, we assume it is # the cell's main thread and we set the stack_ms accordingly. if self.stack_ms is None: self.stack_ms = stack_ms image.pop_attrs() return thread
def collect_xml(self, okl4_el, ignore_name, namespace, machine, pools, kernel, image): """Handle an Iguana Server Compound Object""" self.cell = \ kernel.register_cell(okl4_el.name, okl4_el.kernel_heap, max_caps = getattr(okl4_el, "caps", None), max_priority = getattr(okl4_el, "max_priority", None)) self.name = okl4_el.name self.namespace = namespace.add_namespace(self.name) self.space = \ self.cell.register_space(self.namespace, "MAIN", is_privileged = True, max_clists = getattr(okl4_el, "clists", None), max_spaces = getattr(okl4_el, "spaces", None), max_mutexes = getattr(okl4_el, "mutexes", None), max_threads = getattr(okl4_el, "threads", None), max_priority = getattr(okl4_el, "max_priority", None), plat_control = \ getattr(okl4_el, "platform_control", False)) image.push_attrs( virtual = getattr(okl4_el, "virtpool", None), physical = getattr(okl4_el, "physpool", None), pager = make_pager_attr(getattr(okl4_el, "pager", None)), direct = getattr(okl4_el, "direct", None)) (self.def_virtpool, self.def_physpool) = image.current_pools() self.collect_mutexes(okl4_el, self.namespace, self.space) env_el = okl4_el.find_child("environment") self.env = CellEnvironment(okl4_el.name, self.namespace, machine, image, kernel, self.space.mappings) if env_el != None: self._collect_environment(env_el, self.env) # Set these up now even though we can't actually assign values # till later self.phys_attrs = image.new_attrs(self.namespace.add_namespace("default_physpool")) self.phys_attrs.attach = PF_R | PF_W | PF_X self.phys_attrs.mem_type = self.phys_attrs.unmapped mapping = self.space.register_mapping(self.phys_attrs) self.env.add_physmem_segpool_entry("MAIN_PHYSMEM_SEGPOOL", mapping) self.virt_attrs = image.new_attrs(self.namespace.add_namespace("default_virtpool")) self.env.add_virtmem_pool_entry("MAIN_VIRTMEM_POOL", self.virt_attrs) self.space.utcb = image.new_attrs(self.namespace.add_namespace("main_utcb_area")) self.space.utcb.attach = PF_R filename = os.path.join(okl4_el._path, okl4_el.file) self.elf = UnpreparedElfFile(filename=filename) if self.elf.elf_type != ET_EXEC: raise MergeError("All the merged ELF files must be of EXEC type.") # Find out which version of libokl4 that the cell was built # against sym = self.elf.find_symbol("okl4_api_version") if sym == None: raise MergeError("Unable to locate the symbol 'okl4_api_version' in file \"%s\". Cells must link with libokl4." % filename) self.api_version = self.elf.get_value(sym.value, sym.size, self.elf.endianess) if self.api_version == None: raise MergeError("Unable to read the symbol 'okl4_api_version' in file \"%s\". Cells must link with libokl4." % filename) self.env.add_elf_info_entry(os.path.basename(okl4_el.file), image.PROGRAM, self.elf.entry_point) segment_els = okl4_el.find_children("segment") segs = collect_elf_segments(self.elf, image.PROGRAM, segment_els, filename, [], self.namespace, image, machine, pools) self.elf_prog_segments = segs for seg in segs: self.env.add_elf_segment_entry(okl4_el.name + '.' + seg.attrs.ns_node.name, seg.segment) seg_ns = seg.attrs.ns_node mapping = self.space.register_mapping(seg.attrs) self.add_standard_mem_caps(seg_ns, mapping, seg.attrs) patch_els = okl4_el.find_children("patch") collect_patches(self.elf, patch_els, filename, image) # Record any IRQs that are assigned to the initial program. for irq_el in okl4_el.find_children("irq"): self.space.register_irq(irq_el.value) self.env.add_device_irq_list("NO_DEVICE", [irq_el.value for irq_el \ in okl4_el.find_children("irq")]) # Collect the implicit thread if not hasattr(okl4_el, 'priority'): okl4_el.priority = kernel.kernel.MAX_PRIORITY threads = [] threads.append(self.collect_thread(self.elf, okl4_el, self.namespace, image, machine, pools, kernel, self.space, self.elf.entry_point, "main", True)) # FIXME: Need to check up on actual entry point's for thread_el in okl4_el.find_children("thread"): threads.append(self.collect_thread(self.elf, thread_el, self.namespace, image, machine, pools, kernel, self.space, "thread_start", cell_create_thread = True)) device_mem = \ self.collect_use_devices(okl4_el, self.space, self.namespace, image, machine, pools) memsection_objs = \ self.collect_memsections(okl4_el, self.space, self.namespace, image, machine, pools) # Collect all data for any extra spaces defined in the XML for space_el in okl4_el.find_children("space"): space_ns = self.namespace.add_namespace(space_el.name) space = self.cell.register_space(space_ns, space_el.name, max_priority = getattr(space_el, "max_priority", \ getattr(okl4_el, "max_priority", None))) image.push_attrs( virtual = getattr(space_el, "virtpool", None), physical = getattr(space_el, "physpool", None), pager = make_pager_attr(getattr(space_el, "pager", None)), direct = getattr(space_el, "direct", None)) for thread_el in space_el.find_children("thread"): threads.append(self.collect_thread(self.elf, thread_el, space_ns, image, machine, pools, kernel, space, "thread_start", cell_create_thread = True)) self.collect_mutexes(space_el, space_ns, space) device_mem.extend( self.collect_use_devices(space_el, space, space_ns, image, machine, pools)) memsection_objs.extend( self.collect_memsections(space_el, space, space_ns, image, machine, pools)) self.env.add_kspace_entry(space_el.name + "_KSPACE", space) space.utcb = image.new_attrs(space_ns.add_namespace(space_el.name + "_utcb_area")) space.utcb.attach = PF_R # Weave a kclist for the main space. main_kclist = self.env.add_kclist_entry("MAIN_KCLIST", self.cell) # Weave the root kspace object. main_kspace = self.env.add_kspace_entry("MAIN_KSPACE", self.space) # Weave the root protection domain object. self.env.add_pd_entry("MAIN_PD", self.space, main_kspace, 32, machine.min_page_size(), self.elf) # Find heap and add it heap_el = okl4_el.find_child('heap') if heap_el is None: heap_el = ParsedElement('heap') heap_attr = collect_memobj_attrs(heap_el, self.namespace, image, machine) if heap_attr.size == None: heap_attr.size = DEFAULT_HEAP_SIZE self.heap_ms = image.add_memsection(heap_attr, machine, pools) self.cell.heap = self.heap_ms.attrs mapping = self.space.register_mapping(self.heap_ms.attrs) self.add_standard_mem_caps(heap_attr.ns_node, mapping, heap_attr) self.elf_segments = \ [thread.get_stack_ms() for thread in threads] + \ [self.heap_ms] + memsection_objs + device_mem self.env.add_kernel_info_entry(0, 0, kernel) # Add command line arguments commandline_el = okl4_el.find_child("commandline") if commandline_el is not None: args = [arg_el.value for arg_el in commandline_el.find_children("arg")] else: args = [] self.env.add_arg_list(args) self.cell.env = self.env