ShowX86UserStack(thread)
elif kern.arch == "arm":
ShowARMUserStack(thread)
- elif kern.arch == "arm64":
+ elif kern.arch.startswith("arm64"):
ShowARM64UserStack(thread)
return True
return True
-
@lldb_command('showtaskuserargs')
def ShowTaskUserArgs(cmd_args=None, cmd_options={}):
""" Read the process argv, env, and apple strings from the user stack
task = kern.GetValueFromAddress(cmd_args[0], 'task *')
proc = Cast(task.bsd_info, 'proc *')
+ ptrsize = 8 if int(task.t_flags) & 0x1 else 4
- format_string = "Q" if kern.ptrsize == 8 else "I"
+ format_string = "Q" if ptrsize == 8 else "I"
string_area_size = proc.p_argslen
string_area_addr = proc.user_stack - string_area_size
return False
i = 0
- pos = string_area_addr - kern.ptrsize
+ pos = string_area_addr - ptrsize
for name in ["apple", "env", "argv"] :
while True:
break
i += 1
- pos -= kern.ptrsize
+ pos -= ptrsize
- user_data_string = GetUserDataAsString(task, pos, kern.ptrsize)
+ user_data_string = GetUserDataAsString(task, pos, ptrsize)
ptr = struct.unpack(format_string, user_data_string)[0]
if ptr == 0:
return True
-
-@lldb_command('showtaskuserstacks')
-def ShowTaskUserStacks(cmd_args=None):
- """ Print out the user stack for each thread in a task, followed by the user libraries.
- Syntax: (lldb) showtaskuserstacks <task_t>
- The format is compatible with CrashTracer. You can also use the speedtracer plugin as follows
- (lldb) showtaskuserstacks <task_t> -p speedtracer
-
- Note: the address ranges are approximations. Also the list may not be completely accurate. This command expects memory read failures
- and hence will skip a library if unable to read information. Please use your good judgement and not take the output as accurate
- """
- if not cmd_args:
- raise ArgumentError("Insufficient arguments")
-
- task = kern.GetValueFromAddress(cmd_args[0], 'task *')
+def ShowTaskUserStacks(task):
#print GetTaskSummary.header + " " + GetProcSummary.header
pval = Cast(task.bsd_info, 'proc *')
#print GetTaskSummary(task) + " " + GetProcSummary(pval) + "\n \n"
crash_report_format_string = """\
-Process: {pid: <10d}
+Process: {pname:s} [{pid:d}]
Path: {path: <50s}
Identifier: {pname: <30s}
Version: ??? (???)
Code Type: {parch: <20s}
-Parent Process: {ppname: >20s}[{ppid:d}]
+Parent Process: {ppname:s} [{ppid:d}]
Date/Time: {timest:s}.000 -0800
OS Version: {osversion: <20s}
"""
user_lib_rex = re.compile("([0-9a-fx]+)\s-\s([0-9a-fx]+)\s+(.*?)\s", re.IGNORECASE|re.MULTILINE)
from datetime import datetime
- ts = datetime.fromtimestamp(int(pval.p_start.tv_sec))
- date_string = ts.strftime('%Y-%m-%d %H:%M:%S')
- is_64 = False
- if pval.p_flag & 0x4 :
- is_64 = True
+ if pval:
+ ts = datetime.fromtimestamp(int(pval.p_start.tv_sec))
+ date_string = ts.strftime('%Y-%m-%d %H:%M:%S')
+ else:
+ date_string = "none"
+ is_64 = True
+ if pval and (pval.p_flag & 0x4) == 0 :
+ is_64 = False
parch_s = ""
if kern.arch == "x86_64" or kern.arch == "i386":
parch_s = kern.arch
osversion = "iOS"
osversion += " ({:s})".format(kern.globals.osversion)
- print crash_report_format_string.format(pid = pval.p_pid,
- pname = pval.p_comm,
- path = pval.p_comm,
- ppid = pval.p_ppid,
- ppname = GetProcNameForPid(pval.p_ppid),
+ if pval:
+ pid = pval.p_pid
+ pname = pval.p_comm
+ path = pval.p_comm
+ ppid = pval.p_ppid
+ else:
+ pid = 0
+ pname = "unknown"
+ path = "unknown"
+ ppid = 0
+
+ print crash_report_format_string.format(pid = pid,
+ pname = pname,
+ path = path,
+ ppid = ppid,
+ ppname = GetProcNameForPid(ppid),
timest = date_string,
parch = parch_s,
osversion = osversion
-
)
print "Binary Images:"
ShowTaskUserLibraries([hex(task)])
printthread_user_stack_ptr = ShowX86UserStack
if kern.arch == "arm":
printthread_user_stack_ptr = ShowARMUserStack
- elif kern.arch =="arm64":
+ elif kern.arch.startswith("arm64"):
printthread_user_stack_ptr = ShowARM64UserStack
counter = 0
print "Enable debugging ('(lldb) xnudebug debug') to see detailed trace."
return
+@lldb_command('showtaskuserstacks', "P:F:")
+def ShowTaskUserStacksCmdHelper(cmd_args=None, cmd_options={}):
+ """ Print out the user stack for each thread in a task, followed by the user libraries.
+ Syntax: (lldb) showtaskuserstacks <task_t>
+ or: (lldb) showtaskuserstacks -P <pid>
+ or: (lldb) showtaskuserstacks -F <task_name>
+ The format is compatible with CrashTracer. You can also use the speedtracer plugin as follows
+ (lldb) showtaskuserstacks <task_t> -p speedtracer
+
+ Note: the address ranges are approximations. Also the list may not be completely accurate. This command expects memory read failures
+ and hence will skip a library if unable to read information. Please use your good judgement and not take the output as accurate
+ """
+ task_list = []
+ if "-F" in cmd_options:
+ task_list = FindTasksByName(cmd_options["-F"])
+ elif "-P" in cmd_options:
+ pidval = ArgumentStringToInt(cmd_options["-P"])
+ for t in kern.tasks:
+ pval = Cast(t.bsd_info, 'proc *')
+ if pval and pval.p_pid == pidval:
+ task_list.append(t)
+ break
+ elif cmd_args:
+ t = kern.GetValueFromAddress(cmd_args[0], 'task *')
+ task_list.append(t)
+ else:
+ raise ArgumentError("Insufficient arguments")
+
+ for task in task_list:
+ ShowTaskUserStacks(task)
def GetUserDataAsString(task, addr, size):
""" Get data from task's address space as a string of bytes
if not WriteInt64ToMemoryAddress(0, kdp_pmap_addr):
debuglog("Failed to reset in kdp_pmap from GetUserDataAsString.")
return ""
- elif kern.arch in ['arm', 'arm64', 'x86_64'] and long(size) < (2 * kern.globals.page_size):
+ elif (kern.arch == 'x86_64' or kern.arch.startswith('arm')) and (long(size) < (2 * kern.globals.page_size)):
# Without the benefit of a KDP stub on the target, try to
# find the user task's physical mapping and memcpy the data.
# If it straddles a page boundary, copy in two passes
memory_data = GetUserDataAsString(task, memory_begin_address, memory_size)
else:
data_ptr = kern.GetValueFromAddress(memory_begin_address, 'uint8_t *')
+ if data_ptr == 0:
+ print "Kcdata descriptor is NULL"
+ return False
memory_data = []
for i in range(memory_size):
memory_data.append(chr(data_ptr[i]))
projects / apple / xnu.git / blobdiff