def collect_zone_element(zone_el, ignore_name, namespace, pools,
image, bootinfo, machine):
"""Collect the contents of a zone."""
non_zone_ms = []
env = weaver.bootinfo.Environment(namespace)
# New namespace for objects living in the memsection.
zone_namespace = namespace.add_namespace(zone_el.name)
virtpool = getattr(zone_el, 'virtpool', None)
physpool = getattr(zone_el, 'physpool', None)
attrs = image.new_attrs(zone_namespace)
attrs.name = zone_el.name
zone = weaver.bootinfo.Zone(attrs, pools, image, machine)
bootinfo.add_zone(zone)
# Push the overriding attributes for the zone.
image.push_attrs(virtual = zone_el.name,
physical = physpool)
master = weaver.bootinfo.Cap("master", ["master"])
zone.add_cap(master)
zone_namespace.add(master.get_name(), master)
for ms_el in zone_el.find_children('memsection'):
if not ignore_name.match(ms_el.name):
ms = collect_memsection_element(ms_el, ignore_name,
zone_namespace, image,
machine, pools)
# Memsections that aren't allocated in the zone belong to the PD.
if ms.get_attrs().virtpool == zone_el.name:
zone.add_memsection(ms)
image.add_group(None, [ms.get_ms()])
else:
non_zone_ms.append(ms)
# All of the segments have already been processed by the program/pd, but
# record the ones probably should belong to the zone. These will be added
# to the zone by PD.add_zone()
segment_els = zone_el.find_children("segment")
zone.set_claimed_segments([segment_el.name for segment_el in segment_els])
image.pop_attrs()
return (zone, non_zone_ms)
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_thread(elf, el, ignore_name, namespace, image, machine,
pools, entry, name = None,
namespace_thread_name = None):
"""Collect the attributes of a thread element."""
if entry is None:
raise MergeError, "No entry point specified for thread %s" % name
# el can be a program element or a thread element.
if name is None:
name = el.name
user_main = getattr(el, 'start', None)
# HACK: There is no easy way for a PD to specify the main thread,
# so is the user entry point is '_start' (the traditional entry
# point symbol), then start there rather then the thread entry
# point.
if user_main == "_start":
start = "_start"
user_main = None
entry = start_to_value(entry, elf)
user_main = start_to_value(user_main, elf)
priority = getattr(el, 'priority', None)
physpool = getattr(el, 'physpool', None)
virtpool = getattr(el, 'virtpool', None)
# New namespace for objects living in the thread.
if namespace_thread_name is None:
namespace_thread_name = name
new_namespace = namespace.add_namespace(namespace_thread_name)
# Push the overriding pools for the thread.
image.push_attrs(virtual = virtpool,
physical = physpool)
# Create the thread desription object.
thread = weaver.bootinfo.Thread(name, entry, user_main, priority)
# Add the standard caps for the thread.
create_standard_caps(thread, new_namespace)
# 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_ms = collect_memsection_element(stack_el, ignore_name,
new_namespace, image,
machine, pools)
thread.attach_stack(stack_ms)
image.add_group(0, [stack_ms.get_ms()])
# Collect any command line arguments.
commandline_el = el.find_child('commandline')
if commandline_el is not None:
for arg_el in commandline_el.find_children("arg"):
thread.add_argv(arg_el.value)
image.pop_attrs()
return thread
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_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)
