def init(arc_nexe,
library_path,
runnable_ld_path,
lock_file,
remote_address=None,
ssh_options=None):
"""Initializes GDB plugin for nacl_helper in Bare Metal mode.
If remote_address is specified, we control the _LOCK_FILE using this
address. This should be specified only for Chrome OS.
"""
program_address = (
_get_program_loaded_address(runnable_ld_path) +
gdb_script_util.get_text_section_file_offset(runnable_ld_path))
gdb.execute('add-symbol-file %s 0x%x' %
(runnable_ld_path, program_address))
LoadHandlerBreakpoint(arc_nexe, library_path)
# Everything gets ready, so unlock the program.
if remote_address:
command = ['ssh', 'root@%s' % remote_address]
if ssh_options:
command.extend(ssh_options)
command.extend(['rm', lock_file])
subprocess.check_call(command)
else:
os.unlink(lock_file)
def stop(self):
# Note as this class is inherited from FinishBreakpoint, this
# breakpoint will be removed this function returns once.
file_off = gdb_script_util.get_text_section_file_offset(
self._runnable_ld_path)
if file_off is None:
return None
gdb.execute('add-symbol-file %s 0x%x' %
(self._runnable_ld_path, file_off + self._mmap_addr))
bare_metal_support.LoadHandlerBreakpoint(self._main_binary,
self._library_path)
def stop(self):
# Note as this class is inherited from FinishBreakpoint, this
# breakpoint will be removed this function returns once.
file_off = gdb_script_util.get_text_section_file_offset(
self._runnable_ld_path)
if file_off is None:
return None
gdb.execute('add-symbol-file %s 0x%x' % (self._runnable_ld_path,
file_off + self._mmap_addr))
bare_metal_support.LoadHandlerBreakpoint(
self._main_binary, self._library_path)
def _get_text_section_address_from_link_map(self, path):
base_addr_str = gdb_script_util.get_arg('unsigned int', 1)
if not base_addr_str:
return None
try:
base_addr = int(base_addr_str)
except ValueError:
print('Failed to retrieve the address of the shared object: ' +
base_addr_str)
return None
file_off = gdb_script_util.get_text_section_file_offset(path)
if file_off is None:
return None
return file_off + base_addr
def _get_text_section_address_from_link_map(self, path):
base_addr_str = gdb_script_util.get_arg('unsigned int', 1)
if not base_addr_str:
return None
try:
base_addr = int(base_addr_str)
except ValueError:
print('Failed to retrieve the address of the shared object: ' +
base_addr_str)
return None
file_off = gdb_script_util.get_text_section_file_offset(path)
if file_off is None:
return None
return file_off + base_addr
def init(arc_nexe, library_path, runnable_ld_path, lock_file,
remote_address=None, ssh_options=None):
"""Initializes GDB plugin for nacl_helper in Bare Metal mode.
If remote_address is specified, we control the _LOCK_FILE using this
address. This should be specified only for Chrome OS.
"""
program_address = (
_get_program_loaded_address(runnable_ld_path) +
gdb_script_util.get_text_section_file_offset(runnable_ld_path))
gdb.execute('add-symbol-file %s 0x%x' % (runnable_ld_path, program_address))
LoadHandlerBreakpoint(arc_nexe, library_path)
# Everything gets ready, so unlock the program.
if remote_address:
command = ['ssh', 'root@%s' % remote_address]
if ssh_options:
command.extend(ssh_options)
command.extend(['rm', lock_file])
subprocess.check_call(command)
else:
os.unlink(lock_file)
