def corefile(self):
"""corefile() -> pwnlib.elf.elf.Core
Returns a corefile for the process.
If the process is alive, attempts to create a coredump with GDB.
If the process is dead, attempts to locate the coredump created
by the kernel.
"""
# If the process is still alive, try using GDB
import pwnlib.elf.corefile
import pwnlib.gdb
if self.poll() is None:
return pwnlib.gdb.corefile(self)
finder = pwnlib.elf.corefile.CorefileFinder(self)
if not finder.core_path:
self.warn("Could not find core file for pid %i" % self.pid)
return
core_hash = sha256file(finder.core_path)
if self._corefile and self._corefile._hash == core_hash:
return self._corefile
self._corefile = pwnlib.elf.corefile.Corefile(finder.core_path)
self._corefile._hash = core_hash
return self._corefile
def corefile(self):
"""corefile() -> pwnlib.elf.elf.Core
Returns a corefile for the process.
If the process is alive, attempts to create a coredump with GDB.
If the process is dead, attempts to locate the coredump created
by the kernel.
"""
# If the process is still alive, try using GDB
import pwnlib.elf.corefile
import pwnlib.gdb
try:
if self.poll() is None:
corefile = pwnlib.gdb.corefile(self)
if corefile is None:
self.error("Could not create corefile with GDB for %s", self.executable)
return corefile
# Handle race condition against the kernel or QEMU to write the corefile
# by waiting up to 5 seconds for it to be written.
t = Timeout()
finder = None
with t.countdown(5):
while t.timeout and (finder is None or not finder.core_path):
finder = pwnlib.elf.corefile.CorefileFinder(self)
time.sleep(0.5)
if not finder.core_path:
self.error("Could not find core file for pid %i" % self.pid)
core_hash = sha256file(finder.core_path)
if self._corefile and self._corefile._hash == core_hash:
return self._corefile
self._corefile = pwnlib.elf.corefile.Corefile(finder.core_path)
except AttributeError as e:
raise RuntimeError(e) # AttributeError would route through __getattr__, losing original message
self._corefile._hash = core_hash
return self._corefile
def corefile(self):
"""corefile() -> pwnlib.elf.elf.Core
Returns a corefile for the process.
If the process is alive, attempts to create a coredump with GDB.
If the process is dead, attempts to locate the coredump created
by the kernel.
"""
# If the process is still alive, try using GDB
import pwnlib.elf.corefile
import pwnlib.gdb
try:
if self.poll() is None:
return pwnlib.gdb.corefile(self)
finder = pwnlib.elf.corefile.CorefileFinder(self)
if not finder.core_path:
self.warn("Could not find core file for pid %i" % self.pid)
return None
core_hash = sha256file(finder.core_path)
if self._corefile and self._corefile._hash == core_hash:
return self._corefile
self._corefile = pwnlib.elf.corefile.Corefile(finder.core_path)
except AttributeError as e:
raise RuntimeError(
e
) # AttributeError would route through __getattr__, losing original message
self._corefile._hash = core_hash
return self._corefile