X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/39236c6e673c41db228275375ab7fdb0f837b292..3903760236c30e3b5ace7a4eefac3a269d68957c:/tools/lldbmacros/core/xnu_lldb_init.py diff --git a/tools/lldbmacros/core/xnu_lldb_init.py b/tools/lldbmacros/core/xnu_lldb_init.py index a0f23d081..41dd202b9 100644 --- a/tools/lldbmacros/core/xnu_lldb_init.py +++ b/tools/lldbmacros/core/xnu_lldb_init.py @@ -1,4 +1,5 @@ import os +import re def GetSettingsValues(debugger, setting_variable_name): """ Queries the lldb internal settings @@ -14,6 +15,52 @@ def GetSettingsValues(debugger, setting_variable_name): retval.append(str(s)) return retval +def GetSymbolsFilePathFromModule(m): + """ Get a file path from a module. + params: m - lldb.target.module + returns: + str : path to first file based symbol. Note this might be dir path inside sources. + """ + for s in m.symbols: + if s.type == 8: + return os.path.dirname(str(s.name)) + return "" + +def GetSourcePathSettings(binary_path, symbols_path): + """ Parse the binary path and symbols_path to find if source-map setting is applicable + params: + binary_path: str path of the kernel module + symbols_path: str path of the symbols stored in binary. Use + returns: + str : string command to set the source-map setting. + """ + retval = "" + train_re = re.compile(r"dsyms/([a-zA-Z]+)/") + _t_arr = train_re.findall(binary_path) + train = '' + if _t_arr: + train = _t_arr[0] + if not train: + return retval + new_path = "~rc/Software/{}/Projects/".format(train) + new_path = os.path.expanduser(new_path) + new_path = os.path.normpath(new_path) + common_path_re = re.compile("(^.*?Sources/)(xnu.*?)/.*$") + _t_arr = common_path_re.findall(symbols_path) + srcpath = "" + projpath = "xnu" + if _t_arr: + srcpath = "".join(_t_arr[0]) + projpath = _t_arr[0][-1] + else: + return retval + + new_path = new_path + os.path.sep + projpath + cmd = "settings append target.source-map {} {}" + retval = cmd.format(srcpath, new_path) + return retval + + def __lldb_init_module(debugger, internal_dict): debug_session_enabled = False if "DEBUG_XNU_LLDBMACROS" in os.environ and len(os.environ['DEBUG_XNU_LLDBMACROS']) > 0: @@ -25,8 +72,17 @@ def __lldb_init_module(debugger, internal_dict): base_dir_name = self_path[:self_path.rfind("/")] core_os_plugin = base_dir_name + "/lldbmacros/core/operating_system.py" osplugin_cmd = "settings set target.process.python-os-plugin-path \"%s\"" % core_os_plugin + intel_whitelist = ['hndl_allintrs', 'hndl_alltraps', 'trap_from_kernel', 'hndl_double_fault', 'hndl_machine_check'] + arm_whitelist = ['_fleh_prefabt', '_ExceptionVectorsBase', '_ExceptionVectorsTable', '_fleh_undef', '_fleh_dataabt', '_fleh_irq', '_fleh_decirq', '_fleh_fiq_generic', '_fleh_dec'] + whitelist_trap_cmd = "settings set target.trap-handler-names %s %s" % (' '.join(intel_whitelist), ' '.join(arm_whitelist)) xnu_debug_path = base_dir_name + "/lldbmacros/xnu.py" xnu_load_cmd = "command script import \"%s\"" % xnu_debug_path + + source_map_cmd = "" + try: + source_map_cmd = GetSourcePathSettings(base_dir_name, GetSymbolsFilePathFromModule(debugger.GetTargetAtIndex(0).modules[0]) ) + except Exception as e: + pass if debug_session_enabled : if len(prev_os_plugin) > 0: print "\nDEBUG_XNU_LLDBMACROS is set. Skipping the setting of OS plugin from dSYM.\nYou can manually set the OS plugin by running\n" + osplugin_cmd @@ -37,7 +93,12 @@ def __lldb_init_module(debugger, internal_dict): else: print osplugin_cmd debugger.HandleCommand(osplugin_cmd) + print whitelist_trap_cmd + debugger.HandleCommand(whitelist_trap_cmd) print xnu_load_cmd debugger.HandleCommand(xnu_load_cmd) + if source_map_cmd: + print source_map_cmd + debugger.HandleCommand(source_map_cmd) print "\n"