def get_kernel_version(kernel_el, machine):
(elf, _, _) = get_kernel_file(kernel_el, machine)
(addr, size) = get_symbol(elf, "kernel_api_version")
kern_ver = elf.get_value(addr, size, elf.endianess)
if kern_ver == None:
raise MergeError("Unable to locate kernel api symbol")
return kern_ver
def link_kernel(kernel_el, linker_script, linker_wrapper, kernel, soc,
libraries):
link_type = get_linker_type(linker_script)
kernel_tmp = None
if link_type == 'rvct':
# Current elfweaver linker does not support RVCT so shell out to an
# external linker
kernel_tmp = tempfile.NamedTemporaryFile()
# Remove the file at exit.
atexit.register(os.remove, kernel_tmp.name)
command = [
os.path.abspath(linker_wrapper), kernel, kernel_tmp.name,
linker_script, soc
] + libraries
ret = subprocess.Popen(command,
cwd=os.path.dirname(linker_script)).wait()
if ret != 0:
raise MergeError("Failed to link kernel, return code %d" % ret)
elf = UnpreparedElfFile(kernel_tmp.name)
kernel_out_name = kernel_tmp.name
else:
elf = link([kernel, soc])
# Just getting a random temp file name, there must be a nicer way
# to do this?
tmp = tempfile.NamedTemporaryFile()
# Remove the file at exit.
atexit.register(os.remove, tmp.name)
kernel_out_name = tmp.name
tmp.close()
kernel_out = elf.prepare(elf.wordsize, elf.endianess)
kernel_out.to_filename(kernel_out_name)
elf = UnpreparedElfFile(kernel_out_name)
# Kernel is linked, now add the segment names (as per old elfadorn)
# Kernel elements seg_names overwrites defaults
if hasattr(kernel_el, "seg_names"):
seglist = [seg.strip() for seg in kernel_el.seg_names.split(",")]
else:
seglist = None
link_type = get_linker_type(linker_script)
if link_type == "rvct":
scripts = [linker_script]
else:
scripts = []
add_segment_names(elf, get_segment_names(elf, seglist, scripts, link_type))
return elf, kernel_out_name, kernel_tmp
def get_kernel_file(kernel_el, machine):
def relative(file):
"""Return a path taking relativity to XML include directories into account"""
return os.path.join(kernel_el._path, file)
if has_kernel_attr(kernel_el, KERNEL_PRELINK_TAGS):
elf = UnpreparedElfFile(filename = relative(kernel_el.file))
return (elf, kernel_el.file, None)
elif has_kernel_attr(kernel_el, KERNEL_SDKLINK_TAGS):
kernel_dir = os.path.join(relative(kernel_el.sdk), "kernel", machine.get_cpu())
object_dir = os.path.join(kernel_dir, kernel_el.configuration, "object")
lib_dir = os.path.join(kernel_dir, kernel_el.configuration, "libs")
linker_script = os.path.abspath(os.path.join(object_dir, "linker.lds"))
linker_wrapper = os.path.abspath(os.path.join(object_dir, "linker.sh"))
kernel = os.path.abspath(os.path.join(object_dir, machine.get_cpu() +
".o"))
soc = os.path.abspath(os.path.join(object_dir, kernel_el.platform +
".o"))
libs = [os.path.abspath(lib) for lib in glob.glob(os.path.join(lib_dir,
"*.a"))]
return link_kernel(kernel_el, linker_script, linker_wrapper, kernel,
soc, libs)
elif has_kernel_attr(kernel_el, KERNEL_LINK_TAGS):
libs = [relative(lib.strip()) for lib in kernel_el.libs.split(",")]
return link_kernel(kernel_el, relative(kernel_el.linker_script),
relative(kernel_el.linker_wrapper),
relative(kernel_el.kernel),
relative(kernel_el.soc),
libs)
raise MergeError("Invalid kernel tags; a prelinked kernel, SDK information or linking information must be provided")
def machine_init(self, machine):
self.cpu = machine.cpu
if self.cpu not in self.arch_lookup:
raise MergeError("Cpu %s not supported by nano kernel" % self.cpu)
machine.set_kernel_heap_proximity(
self.heap_proximity_map[self.arch_lookup[self.cpu]])
def get_linker_type(linker_script):
buffer = open(linker_script, "r").read()
if "NOCOMPRESS" in buffer:
return "rvct"
elif "SECTIONS" in buffer:
return "gnu"
else:
raise MergeError("Unkown linker.lds type")
def has_kernel_attr(kernel_el, test_tags):
for tag in test_tags:
if not hasattr(kernel_el, tag):
break
else:
for tag in KERNEL_TAGS.difference(test_tags):
if hasattr(kernel_el, tag):
raise MergeError("Found unexpected kernel tag %s when %s has already been specificed" % (tag, test_tags))
return True
return False
def layout_cells_post(self, image):
# This must be called after image.layout() and before the cell
# init scripts are written out.
#
# Do any required layout here
self.kernel.layout_cells_post(self, image)
if self.machine.arch_max_spaces != 0 and \
self.total_spaces > self.machine.arch_max_spaces:
raise MergeError("Tried to allocate %d spaces, kernel only allows %d."
% (self.total_spaces, self.machine.arch_max_spaces))
def check_api_versions(kernel):
""" Return the kernel API version number. """
kern_ver = get_symbol(kernel, "kernel_api_version", True)
if kern_ver:
addr = kern_ver[0]
size = kern_ver[1]
else:
return None
kern_ver = kernel.get_value(addr, size, kernel.endianess)
# Check that both the kernel and soc api versions match
if kern_ver == MICRO_KERNEL_API_VERSION:
(addr, size) = get_symbol(kernel, "soc_api_version")
soc_ver = kernel.get_value(addr, size, kernel.endianess)
if soc_ver == None:
raise MergeError("Unable to locate soc api symbol")
if kern_ver != soc_ver:
raise MergeError(
"Kernel api version %d doesn't match soc api version %d" %
(kern_ver, soc_ver))
return kern_ver
def register_thread(self, entry, user_start, utcb, priority,
create = True):
assert self.create or not create
if self.max_priority is not None and \
priority > self.max_priority:
raise MergeError("Tried to create thread with priority %s," \
" but space (%s) max priority is %s." % (priority,
self.ns_node.abs_name(),
self.max_priority))
thread = self.Thread(entry, user_start, utcb, priority, create)
self.threads.append(thread)
return thread
def collect_xml(self, iguana_el, ignore_name, namespace, machine,
pools, kernel, image):
"""Handle an Iguana Server Compound Object"""
cell = \
kernel.register_cell(iguana_el.name,
iguana_el.kernel_heap,
max_caps = getattr(iguana_el, "caps", None))
# New namespace for objects living in the root program's PD.
ig_namespace = namespace.add_namespace(iguana_el.name)
self.namespace = ig_namespace
self.s_namespace = self.namespace
self.name = iguana_el.name
self.space = \
cell.register_space(self.namespace, "MAIN",
is_privileged = True,
max_clists = getattr(iguana_el,
"clists", None),
max_spaces = getattr(iguana_el,
"spaces", None),
max_mutexes = getattr(iguana_el,
"mutexes", None),
max_threads = getattr(iguana_el,
"threads", None),
plat_control = \
getattr(iguana_el,
"platform_control",
False))
self.setup_bootinfo_pools(namespace, pools)
self.setup_device_namespace(namespace, machine)
self.env = CellEnvironment(iguana_el.name, self.namespace,
machine, image, kernel,
self.space.mappings)
cell.env = self.env
pd = weaver.cells.iguana.bootinfo.RootServerPD(iguana_el.name,
ig_namespace)
# Declare the default memory pools.
def_virtpool = getattr(iguana_el, "virtpool",
pools.get_default_virtual_pool())
def_physpool = getattr(iguana_el, "physpool",
pools.get_default_physical_pool())
def_pager = getattr(iguana_el, "pager", None)
def_direct = getattr(iguana_el, "direct", None)
# Record any IRQs that are assigned to Iguana
for irq_el in iguana_el.find_children("irq"):
self.space.register_irq(irq_el.value)
self.bootinfo.set_system_default_attrs(def_virtpool,
def_physpool,
image,
def_pager,
def_direct)
# Iguana is not aware of segment ids.
# The old mapping API uses segment 0 for all mapping ops.
# Segment 0 needs to cover all of physical memory.
# Subsequent segments will be created but never used,
# but must still be mapped!
# XXX: VVVVV THIS IS PURE EVIL VVVVV
physpool_attrs = \
image.new_attrs(self.s_namespace.add_namespace("physpool_hack"))
physpool_attrs.phys_addr = 0 #first_phys_base
physpool_attrs.size = 0xfffff000 #first_phys_end
physpool_attrs.attach = PF_R | PF_W | PF_X
physpool_attrs.cache_policy = 0xff # XXX: Define me properly
physpool_attrs.mem_type = physpool_attrs.unmapped
self.space.register_mapping(physpool_attrs)
# XXX: ^^^^^ THIS IS PURE EVIL ^^^^^
filename = os.path.join(iguana_el._path, iguana_el.file)
elf = UnpreparedElfFile(filename=filename)
pd.set_default_pools(image, self.bootinfo)
# Collect the object environment
pd.add_env_ms(image, ig_namespace, machine, pools)
env, extra_ms = \
collect_environment_element(iguana_el.find_child('environment'),
ig_namespace, machine, pools,
image, self.bootinfo)
segment_els = iguana_el.find_children("segment")
segs = collect_elf_segments(elf,
image.ROOT_PROGRAM,
segment_els,
filename,
[],
ig_namespace,
image,
machine,
pools)
self.elf_prog_segments = segs
for seg in segs:
self.space.register_mapping(seg.attrs)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
# Find out which version of libokl4 that iguana was built
# against
sym = 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 = elf.get_value(sym.value, sym.size,
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)
# Record any patches being made to the program.
patch_els = iguana_el.find_children("patch")
for patch in getattr(Iguana_el, "extra_patches", []):
addr = get_symbol(elf, patch[0], True)
if addr == None:
continue
addr = int(addr[0])+ int(patch[1])
new_patch = Patch_el(address=hex(addr), bytes=patch[2],
value=patch[3])
patch_els.append(new_patch)
collect_patches(elf, patch_els, filename, image)
for extension_el in iguana_el.find_children("extension"):
if not ignore_name.match(extension_el.name):
collect_extension_element(extension_el,
pd,
ig_namespace,
elf,
image,
machine,
self.bootinfo,
pools)
# Collect the main thread. The root program can only have one
# thread, so this call chiefly is used to collect information
# about the stack.
#
# The stack is not set up as a memsection, so it is not put in the
# object environment.
if not hasattr(iguana_el, 'priority'):
iguana_el.priority = 255
thread = collect_thread(elf, iguana_el, ignore_name, ig_namespace,
image, machine, pools, self.space,
entry = elf.entry_point,
name = 'iguana',
namespace_thread_name = "main",
cell_create_thread = True)
pd.add_thread(thread)
# Collect the heap. Is there no element, create a fake one for
# the collection code to use.
#
# The heap is not set up as a memsection, so it is not put in the
# object environment.
heap_el = iguana_el.find_child('heap')
if heap_el is None:
heap_el = ParsedElement('heap')
heap_ms = collect_memsection_element(heap_el, ignore_name,
ig_namespace, image,
machine, pools)
pd.attach_heap(heap_ms)
self.space.register_mapping(heap_ms.ms.attrs)
self.space.register_mapping(thread.get_stack().get_ms().attrs)
self.elf_segments.extend([pd.env_ms.get_ms(),
thread.get_stack().get_ms(), heap_ms.get_ms()] +
[ms.get_ms() for ms in extra_ms])
pd.add_environment(env)
pd.utcb_size = image.utcb_size
self.bootinfo.add_rootserver_pd(pd)
# And now parse the programs and pd's
collect_program_pd_elements(iguana_el, ignore_name,
ig_namespace, image, machine,
self.bootinfo, pools, kernel,
cell)
def collect_xml(self, kernel_el, kernel_heap_size, namespace, image,
machine, pools):
"""Collect the attributes of the kernel element."""
(elf, kernel_file, kernel_tmp) = get_kernel_file(kernel_el, machine)
if elf.elf_type != ET_EXEC:
raise MergeError, \
"All the merged ELF files must be of EXEC type."
# New namespace for objects living in the kernel.
kernel_namespace = namespace.add_namespace('kernel')
# We setup our kernel type depending on the api version number
kern_ver = check_api_versions(elf)
if kern_ver == NANO_KERNEL_API_VERSION:
self.kernel = NanoKernel(elf, kernel_namespace, machine)
else:
self.kernel = MicroKernel(kernel_namespace)
assert self.total_threads is None
self.total_threads = self.kernel.ABSOLUTE_MAX_THREADS
# Record the default pools for cells to use if they don't have
# defaults set.
virtpool = getattr(kernel_el, "virtpool", None)
physpool = getattr(kernel_el, "physpool", None)
image.set_attrs_stack(def_virt=virtpool, def_phys=physpool)
pools.set_default_pools(virtpool, physpool)
segment_els = kernel_el.find_children("segment")
patch_els = kernel_el.find_children("patch")
machine.set_cache_attributes(elf)
image.set_kernel(elf)
segs = collect_elf_segments(elf, image.KERNEL, segment_els, 'kernel',
self.kernel.segment_drops,
kernel_namespace, image, machine, pools)
# Set base segment
self.base_segment = self.kernel.get_base_segment(elf, segs, image)
if self.base_segment.attrs.phys_addr is not None and \
(self.base_segment.attrs.phys_addr & ((1024 * 1024) - 1)) != 0:
raise MergeError("Physical address of %s must be 1MB aligned!" %
self.base_segment.attrs.abs_name())
elf = elf.prepare(elf.wordsize, elf.endianess)
# The extra_patches attr may be added by a plugin.
for patch in getattr(Kernel_el, "extra_patches", []):
addr = get_symbol(elf, patch[0], True)
if addr != None:
addr = int(addr[0]) + int(patch[1])
new_patch = Patch_el(address=hex(addr),
bytes=patch[2],
value=patch[3])
patch_els.append(new_patch)
collect_patches(elf, patch_els, kernel_file, image)
# Collect the config elements, some of these relate to
# heap and thread array, so do it first
config_el = kernel_el.find_child("config")
if config_el is not None:
for option in config_el.find_children("option"):
self.add_config(option.key, option.value)
heap_attrs = image.new_attrs(
namespace.root.add_namespace("kernel_heap"))
heap_attrs.align = machine.kernel_heap_align
heap_el = kernel_el.find_child("heap")
if heap_el is not None:
heap_attrs.phys_addr = getattr(heap_el, 'phys_addr',
heap_attrs.phys_addr)
heap_attrs.size = getattr(heap_el, 'size', heap_attrs.size)
heap_attrs.align = getattr(heap_el, 'align', heap_attrs.align)
# Override the size with the command line value, if present.
if kernel_heap_size != 0:
heap_attrs.size = kernel_heap_size
# Nano needs a heap size set early on
# Micro remains unassigned since it will get dynamically calculated later
if not heap_attrs.size and isinstance(self.kernel, NanoKernel):
heap_attrs.size = self.kernel.DEFAULT_KERNEL_HEAP_SIZE
self.heap = image.set_kernel_heap(heap_attrs, machine, pools,
self.base_segment.segment,
isinstance(self.kernel, NanoKernel))
image.add_group(machine.kernel_heap_proximity,
(self.base_segment, self.heap))
self.register_heap(heap_attrs)
if isinstance(self.kernel, MicroKernel):
image.utcb_size = self.kernel.get_utcb_size(elf, image)
self.collect_use_devices(kernel_el, image, machine, pools)
if kernel_tmp:
kernel_tmp.close()
def layout_cells_pre(self):
# This is called before dynamic elements of cells as we should
# be able to decide the number of cells, clists and mutexes at that
# time
clist_id = 0
space_id = 0
mutex_id = 0
self.total_spaces = 0
self.total_clists = 0
self.total_mutexes = 0
total_threads = 0
for cell in self.cells.values():
cap_slot = 0
cell.clist_id = clist_id
# Store the base id for the space, caps and mutex lists
space_list_base = space_id
cap_list_base = clist_id
mutex_list_base = mutex_id
# Init the number of used entries in the lists
space_list_used = 0
cap_list_used = 0
mutex_list_used = len(cell.mutexes)
cell_threads = 0
tmp_cell_max_spaces = 0
for space in cell.get_static_spaces():
space.calc_maxes()
if space.is_privileged and len(cell.spaces) > space.max_spaces:
space.max_spaces = len(cell.spaces)
space.id = space_id
space.space_id_base = space_id
space_id += space.max_spaces
if space.is_privileged:
cell.total_spaces += 1
self.total_spaces += space.max_spaces
tmp_cell_max_spaces = space.max_spaces
else:
cell.total_spaces += space.max_spaces
space.clist_id_base = clist_id
clist_id += space.max_clists
self.total_clists += space.max_clists
space.mutex_id_base = mutex_id
mutex_id += space.max_mutexes
self.total_mutexes += space.max_mutexes
for thread in space.get_static_threads():
thread.cap_slot = cap_slot
cap_slot += 1
cell_threads += space.max_threads
assigned_mutex_id = space.mutex_id_base
for mutex in space.get_static_mutexes():
mutex.id = assigned_mutex_id
assigned_mutex_id += 1
for cap in space.ipc_caps:
cap.clist = cell
cap.cap_slot = cap_slot
cap_slot += 1
for cap in space.mutex_caps:
cap.clist = cell
cap.cap_slot = cap_slot
cap_slot += 1
space_list_used += 1
cap_list_used += cap_slot
mutex_list_used += len(space.mutexes)
if tmp_cell_max_spaces != 0 and \
tmp_cell_max_spaces < cell.total_spaces:
raise MergeError(
"Tried to allocate %s spaces, but cell max spaces is %s." %
(cell.total_spaces, tmp_cell_max_spaces))
if cell.max_threads < cell_threads:
cell.max_threads = cell_threads
cell.space_list = (space_list_base, space_id - space_list_base,
space_list_used)
cell.cap_list = (cap_list_base, clist_id - cap_list_base,
cap_list_used)
cell.mutex_list = (mutex_list_base, mutex_id - mutex_list_base,
mutex_list_used)
total_threads += cell_threads
if self.total_threads < total_threads:
raise MergeError, \
"Total number of threads (%d) exceeds kernel maximum of %d." % \
(total_threads, self.total_threads)
# Now do any kernel specific layout
self.kernel.layout_cells_pre(self)
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