def _init_elf_file(pd_el, image, pd_namespace, machine, pools, bootinfo, pd, kernel):
elf = UnpreparedElfFile(filename=os.path.join(pd_el._path, pd_el.file))
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
segment_els = pd_el.find_all_children("segment")
segs = collect_elf_segments(elf, image.PROGRAM, segment_els,
pd_el.name, [], pd_namespace,
image, machine, pools)
segs_ms = [bootinfo.record_segment_info(pd_el.name, seg,
image, machine, pools)
for seg in segs]
for seg_ms in segs_ms:
pd.attach_memsection(seg_ms)
# Record any patches being made to the program.
patch_els = pd_el.find_children("patch")
collect_patches(elf, patch_els, os.path.join(pd_el._path, pd_el.file), image)
# Collect threads in the PD.
elf = pd.elf = elf.prepare(image.wordsize, image.endianess)
return elf, segs
def collect_extension_element(extension_el, pd, namespace, rp_elf, image,
machine, bootinfo, pools):
# New namespace for objects living in the extension.
extn_namespace = namespace.add_namespace(extension_el.name)
elf = None
start = None
name = None
physpool = getattr(extension_el, 'physpool', None)
pager = getattr(extension_el, 'pager', None)
direct = getattr(extension_el, 'direct', None)
# Push the overriding pools for the extension.
image.push_attrs(physical=physpool, pager=pager, direct=direct)
if hasattr(extension_el, "file"):
elf = UnpreparedElfFile(filename=extension_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
segment_els = extension_el.find_children("segment")
segs = collect_elf_segments(elf, image.EXTENSION, segment_els,
extension_el.name, extn_namespace, image,
machine, pools)
segs_ms = [
bootinfo.record_segment_info(extension_el.name, seg, image,
machine, pools) for seg in segs
]
for seg_ms in segs_ms:
pd.attach_memsection(seg_ms)
# Record any patches being made to the program.
patch_els = extension_el.find_children("patch")
collect_patches(elf, patch_els, extension_el.file, image)
start = elf.entry_point
name = extension_el.file
if hasattr(extension_el, "start"):
start = extension_el.start
name = extension_el.name
# If no file is supplied, look for symbols in the root
# program.
if elf is None:
elf = rp_elf
elf = elf.prepare(elf.wordsize, elf.endianess)
start = start_to_value(start, elf)
bootinfo.add_elf_info(name=name,
elf_type=image.EXTENSION,
entry_point=start)
image.pop_attrs()
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 collect_pd_element(pd_el, ignore_name, namespace, image, machine,
bootinfo, pools):
"""Collect the attributes of a PD element."""
# New namespace for objects living in the PD.
pd_namespace = namespace.add_namespace(pd_el.name)
pd = weaver.bootinfo.PD(pd_el.name, pd_namespace, image, machine, pools)
virtpool = getattr(pd_el, 'virtpool', None)
physpool = getattr(pd_el, 'physpool', None)
direct = getattr(pd_el, 'direct', None)
pd.set_platform_control(getattr(pd_el, "platform_control", False))
if hasattr(pd_el, 'pager'):
pager = make_pager_attr(pd_el.pager)
else:
pager = None
# Push the overriding attributes for the pd.
image.push_attrs(virtual = virtpool,
physical = physpool,
pager = pager,
direct = direct)
pd.set_default_pools(image, bootinfo)
# Collect the object environment
env = collect_environment_element(pd_el.find_child('environment'),
pd_namespace, machine, pools,
image, bootinfo)
if hasattr(pd_el, "file"):
elf = PreparedElfFile(filename=pd_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
segment_els = pd_el.find_all_children("segment")
segs = collect_elf_segments(elf,
image.PROGRAM,
segment_els,
pd_el.name,
pd_namespace,
image,
machine,
pools)
segs_ms = [bootinfo.record_segment_info(pd_el.name, seg,
image, machine, pools)
for seg in segs]
for seg_ms in segs_ms:
pd.attach_memsection(seg_ms)
# Record any patches being made to the program.
patch_els = pd_el.find_children("patch")
collect_patches(elf, patch_els, image)
# Collect threads in the PD.
for thread_el in pd_el.find_children('thread'):
if not ignore_name.match(thread_el.name):
thread = collect_thread(elf, thread_el, ignore_name,
pd_namespace, image, machine, pools,
entry = "_thread_start")
pd.add_thread(thread)
# Record the thread and its stack in the environment.
env.add_entry(key = thread.get_name(),
cap_name = thread.get_name() + '/master')
env.add_entry(key = thread.get_name() + "/STACK",
cap_name = thread.get_name() + '/stack/master',
attach = thread.get_stack().get_attrs().attach)
# Collect memsections in the PD.
for ms_el in pd_el.find_children('memsection'):
if not ignore_name.match(ms_el.name):
ms = collect_memsection_element(ms_el, ignore_name,
pd_namespace, image,
machine, pools)
pd.attach_memsection(ms)
image.add_group(0, [ms.get_ms()])
env.add_entry(key = ms.get_name(),
cap_name = ms.get_name() + '/master',
attach = ms.get_attrs().attach)
# Collect any zones in the program.
for zone_el in pd_el.find_children('zone'):
(zone, non_zone_ms) = \
collect_zone_element(zone_el, ignore_name,
pd_namespace, pools, image,
bootinfo, machine)
pd.attach_zone(zone)
# Attach zones that aren't part of the zone to the program.
for ms in non_zone_ms:
pd.attach_memsection(ms)
image.add_group(0, [ms.get_ms()])
env.add_entry(key = ms.get_name(),
cap_name = ms.get_name() + '/master',
attach = ms.get_attrs().attach)
pd.add_environment(env)
bootinfo.add_pd(pd)
image.pop_attrs()
def collect_program_element(program_el, ignore_name, namespace, image,
machine, bootinfo, pools):
"""Collect the attributes of a program element."""
# New namespace for objects living in the program's PD.
prog_namespace = namespace.add_namespace(program_el.name)
pd = weaver.bootinfo.PD(program_el.name, prog_namespace, image,
machine, pools)
elf = UnpreparedElfFile(filename=program_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
bootinfo.add_elf_info(name = program_el.file,
elf_type = image.PROGRAM,
entry_point = elf.entry_point)
pd.elf = elf
virtpool = getattr(program_el, 'virtpool', None)
physpool = getattr(program_el, 'physpool', None)
direct = getattr(program_el, 'direct', None)
pd.set_platform_control(getattr(program_el, "platform_control", False))
if hasattr(program_el, 'pager'):
pager = make_pager_attr(program_el.pager)
else:
pager = None
# Push the overriding attributes for the program.
image.push_attrs(virtual = virtpool,
physical = physpool,
pager = pager,
direct = direct)
pd.set_default_pools(image, bootinfo)
# Collect the object environment
env = collect_environment_element(program_el.find_child('environment'),
prog_namespace, machine, pools,
image, bootinfo)
segment_els = program_el.find_all_children("segment")
segs = collect_elf_segments(elf,
image.PROGRAM,
segment_els,
program_el.name,
prog_namespace,
image,
machine,
pools)
segs_ms = [bootinfo.record_segment_info(program_el.name, seg,
image, machine, pools)
for seg in segs]
for seg_ms in segs_ms:
pd.attach_memsection(seg_ms)
# Record any patches being made to the program.
patch_els = program_el.find_children("patch")
collect_patches(elf, patch_els, program_el.file, image)
# Collect the main thread.
thread = collect_thread(elf, program_el, ignore_name, prog_namespace,
image, machine, pools,
entry = elf.entry_point,
name = program_el.name,
namespace_thread_name = "main")
pd.add_thread(thread)
pd.set_server_thread(thread)
# Add the virtual device elements
# Virtual devices always get added to the global namespace because they
# should be globally unique
server_spawn_nvdevs = 0
dev_ns = namespace.root.get_namespace("dev")
if dev_ns is None:
raise MergeError, "Device namespace does not exist!"
for v_el in program_el.find_children('virt_device'):
virt_dev = pd.add_virt_dev(v_el.name, program_el.name, pd,
thread, server_spawn_nvdevs)
create_alias_cap(virt_dev, dev_ns)
server_spawn_nvdevs += 1
# Record the main thread and its stack in the environment.
env.add_entry(key = "MAIN",
cap_name = 'main/master')
env.add_entry(key = "MAIN/STACK",
cap_name = 'main/stack/master',
attach = thread.get_stack().get_attrs().attach)
# If marked, sure that the program is exported to every
# environment so that it can be found by other programs.
#
if hasattr(program_el, 'server'):
bootinfo.add_server(
key = program_el.server,
cap_name = prog_namespace.abs_name('main') + '/stack/master')
# Collect remaining threads.
elf = pd.elf = pd.elf.prepare(image.wordsize, image.endianess)
for thread_el in program_el.find_children('thread'):
if not ignore_name.match(thread_el.name):
thread = collect_thread(elf, thread_el, ignore_name,
prog_namespace, image, machine, pools,
entry = "_thread_start")
pd.add_thread(thread)
# Record the thread and its stack in the environment.
env.add_entry(key = thread.get_name(),
cap_name = thread.get_name() + '/master')
env.add_entry(key = thread.get_name() + "/STACK",
cap_name = thread.get_name() + '/stack/master',
attach = thread.get_stack().get_attrs().attach)
# Collect any other memsections in the program.
for ms_el in program_el.find_children('memsection'):
if not ignore_name.match(ms_el.name):
ms = collect_memsection_element(ms_el, ignore_name,
prog_namespace, image,
machine, pools)
pd.attach_memsection(ms)
image.add_group(0, [ms.get_ms()])
env.add_entry(key = ms.get_name(),
cap_name = ms.get_name() + '/master',
attach = ms.get_attrs().attach)
# Collect any zones in the program.
for zone_el in program_el.find_children('zone'):
(zone, non_zone_ms) = \
collect_zone_element(zone_el, ignore_name,
prog_namespace, pools, image,
bootinfo, machine)
pd.attach_zone(zone)
# Attach memsections that aren't part of the zone to the program.
for ms in non_zone_ms:
pd.attach_memsection(ms)
image.add_group(0, [ms.get_ms()])
env.add_entry(key = ms.get_name(),
cap_name = ms.get_name() + '/master',
attach = ms.get_attrs().attach)
# Collect the heap. Is there no element, create a fake one for
# the collection code to use.
heap_el = program_el.find_child('heap')
if heap_el is None:
heap_el = ParsedElement('heap')
heap_ms = collect_memsection_element(heap_el, ignore_name,
prog_namespace, image,
machine, pools)
pd.attach_heap(heap_ms)
image.add_group(0, [heap_ms.get_ms()])
# Fill env with default values.
env.add_entry(key = "HEAP",
cap_name = 'heap/master',
attach = heap_ms.get_attrs().attach)
env.add_entry(key = "HEAP_BASE",
base = heap_ms)
env.add_entry(key = "HEAP_SIZE",
value = heap_ms.get_attrs().size)
pd.add_environment(env)
bootinfo.add_pd(pd)
image.pop_attrs()
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 collect_extension_element(extension_el, pd, namespace, rp_elf, image, machine, bootinfo, pools):
# New namespace for objects living in the extension.
extn_namespace = namespace.add_namespace(extension_el.name)
elf = None
start = None
name = None
physpool = getattr(extension_el, 'physpool', None)
pager = getattr(extension_el, 'pager', None)
direct = getattr(extension_el, 'direct', None)
# Push the overriding pools for the extension.
image.push_attrs(physical = physpool,
pager = pager,
direct = direct)
if hasattr(extension_el, "file"):
elf = UnpreparedElfFile(filename=extension_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
segment_els = extension_el.find_children("segment")
segs = collect_elf_segments(elf,
image.EXTENSION,
segment_els,
extension_el.name,
extn_namespace,
image,
machine,
pools)
segs_ms = [bootinfo.record_segment_info(extension_el.name,
seg, image, machine, pools) for seg in segs]
for seg_ms in segs_ms:
pd.attach_memsection(seg_ms)
# Record any patches being made to the program.
patch_els = extension_el.find_children("patch")
collect_patches(elf, patch_els, extension_el.file, image)
start = elf.entry_point
name = extension_el.file
if hasattr(extension_el, "start"):
start = extension_el.start
name = extension_el.name
# If no file is supplied, look for symbols in the root
# program.
if elf is None:
elf = rp_elf
elf = elf.prepare(elf.wordsize, elf.endianess)
start = start_to_value(start, elf)
bootinfo.add_elf_info(name = name,
elf_type = image.EXTENSION,
entry_point = start)
image.pop_attrs()
def collect_rootprogram_element(parsed, ignore_name, namespace, image, machine, bootinfo, pools):
"""Handle an Iguana Server Compound Object"""
# Find the tag
root_program_el = parsed.find_child("rootprogram")
assert(root_program_el is not None)
# New namespace for objects living in the root program's PD.
rp_namespace = namespace.add_namespace('rootprogram')
pd = weaver.bootinfo.RootServerPD('rootserver', rp_namespace,
image, machine, pools)
# Declare the default memory pools.
def_virtpool = getattr(root_program_el, "virtpool", None)
def_physpool = getattr(root_program_el, "physpool", None)
def_pager = getattr(root_program_el, "pager", None)
def_direct = getattr(root_program_el, "direct", None)
bootinfo.set_system_default_attrs(def_virtpool,
def_physpool,
image,
def_pager,
def_direct)
elf = UnpreparedElfFile(filename=root_program_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
# Record the entry point of the root program so that the kernel
# can start it.
image.kconfig.set_rootserver_entry(elf.entry_point)
pd.set_default_pools(image, bootinfo)
# Collect the object environment
env = collect_environment_element(root_program_el.find_child('environment'),
rp_namespace, machine, pools, image, bootinfo)
segment_els = root_program_el.find_children("segment")
collect_elf_segments(elf,
image.ROOT_PROGRAM,
segment_els,
root_program_el.file,
rp_namespace,
image,
machine,
pools)
# Record any patches being made to the program.
patch_els = root_program_el.find_children("patch")
for p in getattr(RootProgram_el, "extra_patches", []):
addr = get_symbol(elf, p[0], True)
if addr == None:
continue
addr = int(addr[0])+ int(p[1])
new_patch = Patch_el(address=hex(addr), bytes=p[2], value=p[3])
patch_els.append(new_patch)
collect_patches(elf, patch_els, root_program_el.file, image)
for extension_el in root_program_el.find_children("extension"):
if not ignore_name.match(extension_el.name):
collect_extension_element(extension_el,
pd,
rp_namespace,
elf,
image,
machine,
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.
thread = collect_thread(elf, root_program_el, ignore_name, rp_namespace,
image, machine, pools,
entry = elf.entry_point,
name = 'rootprogram',
namespace_thread_name = "main")
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 = root_program_el.find_child('heap')
if heap_el is None:
heap_el = ParsedElement('heap')
heap_ms = collect_memsection_element(heap_el, ignore_name,
rp_namespace, image, machine,
pools)
pd.attach_heap(heap_ms)
image.add_group(0, [heap_ms.get_ms()])
pd.add_environment(env)
bootinfo.add_rootserver_pd(pd)
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_kernel_element(parsed, kernel_heap_size, namespace, image, machine,
pools):
"""Collect the attributes of the kernel element."""
kernel_el = parsed.find_child("kernel")
if kernel_el is None:
return
# New namespace for objects living in the kernel.
kernel_namespace = namespace.add_namespace('kernel')
# Will the kernel be run execute in place?
do_xip = hasattr(kernel_el, 'xip') and kernel_el.xip
physpool = None
if hasattr(kernel_el, 'physpool'):
physpool = kernel_el.physpool
# Push the overriding physical pool for the kernel.
image.push_attrs(physical=physpool)
segment_els = kernel_el.find_children("segment")
patch_els = kernel_el.find_children("patch")
elf = UnpreparedElfFile(filename=kernel_el.file)
#elf = PreparedElfFile(filename=kernel_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, \
"All the merged ELF files must be of EXEC type."
image.set_kernel(elf)
segs = collect_elf_segments(elf, image.KERNEL, segment_els, 'kernel',
kernel_namespace, image, machine, pools)
elf = elf.prepare(elf.wordsize, elf.endianess)
base_segment = None
if do_xip:
(addr, size) = get_symbol(elf, '__phys_addr_ram')
image.patch(addr, size, segs[1])
base_segment = segs[1]
(addr, size) = get_symbol(elf, '__phys_addr_rom')
image.patch(addr, size, segs[0])
else:
sdata = get_symbol(elf, '__phys_addr_ram', may_not_exist=True)
if sdata is not None:
(addr, size) = sdata
image.patch(addr, size, segs[0])
base_segment = segs[0]
# 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_el.file, image)
dynamic_attrs = image.new_attrs(None)
dynamic_attrs.align = machine.kernel_heap_align
max_threads = DEFAULT_KERNEL_MAX_THREADS
dynamic_el = kernel_el.find_child("dynamic")
if dynamic_el is not None:
max_threads = getattr(dynamic_el, 'max_threads', max_threads)
dynamic_attrs.align = getattr(dynamic_el, 'align', dynamic_attrs.align)
dynamic_attrs.size = max_threads * get_tcb_size(elf, image)
array = image.add_kernel_array(dynamic_attrs, pools)
image.add_group(machine.kernel_heap_proximity, (base_segment, array))
image.patch(get_symbol(elf, "tcb_array")[0], machine.word_size / 8, array)
image.patch(
get_symbol(elf, "num_tcbs")[0], machine.word_size / 8, max_threads)
heap_attrs = image.new_attrs(None)
heap_attrs.size = DEFAULT_KERNEL_HEAP_SIZE
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
heap = image.set_kernel_heap(heap_attrs, pools)
image.add_group(machine.kernel_heap_proximity, (base_segment, heap))
config_el = kernel_el.find_child("config")
if config_el is not None:
for option in config_el.find_children("option"):
image.kconfig.add_config(option.key, option.value)
image.pop_attrs()
def collect_kernel_element(parsed, kernel_heap_size, namespace, image,
machine, pools):
"""Collect the attributes of the kernel element."""
kernel_el = parsed.find_child("kernel")
if kernel_el is None:
return
# New namespace for objects living in the kernel.
kernel_namespace = namespace.add_namespace('kernel')
# Will the kernel be run execute in place?
do_xip = hasattr(kernel_el, 'xip') and kernel_el.xip
physpool = None
if hasattr(kernel_el, 'physpool'):
physpool = kernel_el.physpool
# Push the overriding physical pool for the kernel.
image.push_attrs(physical = physpool)
segment_els = kernel_el.find_children("segment")
patch_els = kernel_el.find_children("patch")
elf = UnpreparedElfFile(filename=kernel_el.file)
#elf = PreparedElfFile(filename=kernel_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, \
"All the merged ELF files must be of EXEC type."
image.set_kernel(elf)
segs = collect_elf_segments(elf, image.KERNEL, segment_els,
'kernel', kernel_namespace, image,
machine, pools)
elf = elf.prepare(elf.wordsize, elf.endianess)
base_segment = None
if do_xip:
(addr, size) = get_symbol(elf, '__phys_addr_ram')
image.patch(addr, size, segs[1])
base_segment = segs[1]
(addr, size) = get_symbol(elf, '__phys_addr_rom')
image.patch(addr, size, segs[0])
else:
sdata = get_symbol(elf, '__phys_addr_ram', may_not_exist=True)
if sdata is not None:
(addr, size) = sdata
image.patch(addr, size, segs[0])
base_segment = segs[0]
# 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_el.file, image)
dynamic_attrs = image.new_attrs(None)
dynamic_attrs.align = machine.kernel_heap_align
max_threads = DEFAULT_KERNEL_MAX_THREADS
dynamic_el = kernel_el.find_child("dynamic")
if dynamic_el is not None:
max_threads = getattr(dynamic_el, 'max_threads', max_threads)
dynamic_attrs.align = getattr(dynamic_el, 'align',
dynamic_attrs.align)
dynamic_attrs.size = max_threads * get_tcb_size(elf, image)
array = image.add_kernel_array(dynamic_attrs, pools)
image.add_group(machine.kernel_heap_proximity, (base_segment, array))
image.patch(get_symbol(elf, "tcb_array")[0], machine.word_size / 8, array)
image.patch(get_symbol(elf, "num_tcbs")[0],
machine.word_size / 8, max_threads)
heap_attrs = image.new_attrs(None)
heap_attrs.size = DEFAULT_KERNEL_HEAP_SIZE
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
heap = image.set_kernel_heap(heap_attrs, pools)
image.add_group(machine.kernel_heap_proximity, (base_segment, heap))
config_el = kernel_el.find_child("config")
if config_el is not None:
for option in config_el.find_children("option"):
image.kconfig.add_config(option.key, option.value)
image.pop_attrs()
def collect_rootprogram_element(parsed, ignore_name, namespace, image, machine,
bootinfo, pools):
"""Handle an Iguana Server Compound Object"""
# Find the tag
root_program_el = parsed.find_child("rootprogram")
assert (root_program_el is not None)
# New namespace for objects living in the root program's PD.
rp_namespace = namespace.add_namespace('rootprogram')
pd = weaver.bootinfo.RootServerPD('rootserver', rp_namespace, image,
machine, pools)
# Declare the default memory pools.
def_virtpool = getattr(root_program_el, "virtpool", None)
def_physpool = getattr(root_program_el, "physpool", None)
def_pager = getattr(root_program_el, "pager", None)
def_direct = getattr(root_program_el, "direct", None)
bootinfo.set_system_default_attrs(def_virtpool, def_physpool, image,
def_pager, def_direct)
elf = UnpreparedElfFile(filename=root_program_el.file)
if elf.elf_type != ET_EXEC:
raise MergeError, "All the merged ELF files must be of EXEC type."
# Record the entry point of the root program so that the kernel
# can start it.
image.kconfig.set_rootserver_entry(elf.entry_point)
pd.set_default_pools(image, bootinfo)
# Collect the object environment
env = collect_environment_element(
root_program_el.find_child('environment'), rp_namespace, machine,
pools, image, bootinfo)
segment_els = root_program_el.find_children("segment")
collect_elf_segments(elf, image.ROOT_PROGRAM, segment_els,
root_program_el.file, rp_namespace, image, machine,
pools)
# Record any patches being made to the program.
patch_els = root_program_el.find_children("patch")
for p in getattr(RootProgram_el, "extra_patches", []):
addr = get_symbol(elf, p[0], True)
if addr == None:
continue
addr = int(addr[0]) + int(p[1])
new_patch = Patch_el(address=hex(addr), bytes=p[2], value=p[3])
patch_els.append(new_patch)
collect_patches(elf, patch_els, root_program_el.file, image)
for extension_el in root_program_el.find_children("extension"):
if not ignore_name.match(extension_el.name):
collect_extension_element(extension_el, pd, rp_namespace, elf,
image, machine, 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.
thread = collect_thread(elf,
root_program_el,
ignore_name,
rp_namespace,
image,
machine,
pools,
entry=elf.entry_point,
name='rootprogram',
namespace_thread_name="main")
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 = root_program_el.find_child('heap')
if heap_el is None:
heap_el = ParsedElement('heap')
heap_ms = collect_memsection_element(heap_el, ignore_name, rp_namespace,
image, machine, pools)
pd.attach_heap(heap_ms)
image.add_group(0, [heap_ms.get_ms()])
pd.add_environment(env)
bootinfo.add_rootserver_pd(pd)
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