def generate_init_script(self, kernel, elf, image, machine):
data = self.create_ops(kernel, elf, machine)
# All these symbols *must* exist
may_not_exist = False
for p in self.patches:
(addr, size) = get_symbol(elf, p[0], may_not_exist)
image.patch(addr, size, p[1])
dlen = len(data)
assert(dlen <= kernel.heap_attrs.size)
kernel.heap.segment.sections[0]._data[:dlen] = data
def generate_init_script(self, kernel, elf, image, machine):
data = self.create_ops(kernel, elf, machine)
# All these symbols *must* exist
may_not_exist = False
for p in self.patches:
(addr, size) = get_symbol(elf, p[0], may_not_exist)
image.patch(addr, size, p[1])
dlen = len(data)
assert (dlen <= kernel.heap_attrs.size)
kernel.heap.segment.sections[0]._data[:dlen] = data
def get_symbol(elf, symbol, may_not_exist=False):
"""
Return the address, and size in bytes, of a symbol from the ELF
file.
If may_not_exist is true then failing to find the symbol is not a
fatal error.
"""
try:
return util.get_symbol(elf, symbol, may_not_exist)
except MergeError:
raise MergeError, \
'Symbol "%s" not found in kernel ELF file.' % \
(symbol)
def get_symbol(elf, symbol, may_not_exist = False):
"""
Return the address, and size in bytes, of a symbol from the ELF
file.
If may_not_exist is true then failing to find the symbol is not a
fatal error.
"""
try:
return util.get_symbol(elf, symbol, may_not_exist)
except MergeError:
raise MergeError, \
'Symbol "%s" not found in kernel ELF file.' % \
(symbol)
def set_callbacks(self, elf, premap_callback, access_callback, destroy_callback):
(self.premap_callback, _) = get_symbol(elf, premap_callback)
(self.access_callback, _) = get_symbol(elf, access_callback)
(self.destroy_callback, _) = get_symbol(elf, destroy_callback)
def set_callbacks(self, elf, premap_callback, access_callback,
destroy_callback):
(self.premap_callback, _) = get_symbol(elf, premap_callback)
(self.access_callback, _) = get_symbol(elf, access_callback)
(self.destroy_callback, _) = get_symbol(elf, destroy_callback)