lrdp-v2: dump Dsleep and Running task to hightlight_task.txt

Dump Dsleep and Running task to hightlight_task.txt

Change-Id: Idefe615588c8bed4001f39564062c77fc799dbfd
Signed-off-by: Tengfei Fan <tengfeif@codeaurora.org>

linux-ramdump-parser-v2/parsers/taskdump.py

@@ -12,7 +12,8 @@
 import string
 from print_out import print_out_str
 from parser_util import register_parser, RamParser, cleanupString
-
+taskhighlight_out = None
+highlight_tasks = "\n=====List of all runing and uninterruptable sleep process====\n"
 
 def find_panic(ramdump, addr_stack, thread_task_name):
     if ramdump.arm64:
@@ -49,8 +50,9 @@ def find_panic(ramdump, addr_stack, thread_task_name):
                 return True
     return False
 
-
-def dump_thread_group(ramdump, thread_group, task_out, check_for_panic=0):
+task_state_name = ["Runing", "ISleep", "DSleep"]
+def dump_thread_group(ramdump, thread_group, task_out, taskhighlight_out, check_for_panic=0):
+    global highlight_tasks
     offset_thread_group = ramdump.field_offset(
         'struct task_struct', 'thread_group')
     offset_comm = ramdump.field_offset('struct task_struct', 'comm')
@@ -85,6 +87,10 @@ def dump_thread_group(ramdump, thread_group, task_out, check_for_panic=0):
         task_state = ramdump.read_word(next_thread_state)
         if task_state is None:
             return
+        if task_state < 3:
+             task_state_str = task_state_name[task_state]
+        else:
+             task_state_str = task_state
         task_exit_state = ramdump.read_int(next_thread_exit_state)
         if task_exit_state is None:
             return
@@ -96,6 +102,24 @@ def dump_thread_group(ramdump, thread_group, task_out, check_for_panic=0):
             return
         if not check_for_panic:
             task_cpu = ramdump.get_task_cpu(next_thread_start, threadinfo)
+            #thread_line = thread_task_pid + task_cpu + task_state_str+ next_thread_start+thread_task_name
+            thread_line = "PID %6d cpu %1d  state %16s start 0x%x comm %32s\n" %(thread_task_pid, task_cpu, task_state_str, next_thread_start, thread_task_name)
+            if task_state != 1:
+                if not first:
+                    highlight_tasks += "*" + thread_line
+                    taskhighlight_out.write("**"+thread_line)
+                else:
+                    highlight_tasks += " " + thread_line
+                    taskhighlight_out.write("  " + thread_line)
+                ramdump.unwind.unwind_backtrace(
+                     ramdump.thread_saved_sp(next_thread_start),
+                     ramdump.thread_saved_fp(next_thread_start),
+                     ramdump.thread_saved_pc(next_thread_start),
+                     0, '    ', taskhighlight_out)
+                thread_line = '+' + thread_line
+            else:
+                thread_line = ' ' + thread_line
+
             if not first:
                 task_out.write('Process: {0}, cpu: {1} pid: {2} start: 0x{3:x}\n'.format(
                     thread_task_name, task_cpu, thread_task_pid, next_thread_start))
@@ -146,11 +170,13 @@ def do_dump_stacks(ramdump, check_for_panic=0):
     seen_tasks = []
     if check_for_panic == 0:
         task_out = ramdump.open_file('tasks.txt')
+        taskhighlight_out = ramdump.open_file('tasks_highlight.txt')
     else:
         task_out = None
+        taskhighlight_out = None
     while True:
         dump_thread_group(ramdump, init_thread_group,
-                          task_out, check_for_panic)
+                          task_out, taskhighlight_out, check_for_panic)
         next_task = ramdump.read_word(init_next_task)
         if next_task is None:
             init_next_task = init_addr + offset_tasks
@@ -203,6 +229,8 @@ def do_dump_stacks(ramdump, check_for_panic=0):
             break
     if check_for_panic == 0:
         task_out.close()
+        taskhighlight_out.write(highlight_tasks + "\n")
+        taskhighlight_out.close()
         print_out_str('---wrote tasks to tasks.txt')
 
 def do_dump_task_timestamps(ramdump):