def is_command_exist(name):
result_str = crashhelper.run_gdb_command("!which %s" % (name))
if result_str.startswith("which"):
return False
return True
def disasm(ins_addr, o, args, cmd_path_list):
global asm_color_dict
global funcname
global stackaddr_list
global stack_op_dict
path_list = cmd_path_list.split(':')
disasm_path = ""
for path in path_list:
if os.path.exists(path + "/disasm.py"):
disasm_path = path + "/disasm.py"
break
if disasm_path == "":
print("Can't find disasm.py in path")
return
options = ""
if (o.noaction == False):
options = "-l"
if (o.reverse):
options = options + " -r"
cmd_options = ""
if (o.sourceonly):
cmd_options = cmd_options + " -s"
if (o.fullsource):
cmd_options = cmd_options + " -f"
if (not o.reverse):
options = options + " -r"
if ins_addr.startswith("/"):
ins_addr = ins_addr[1:] # get rid of the first slash
if ":" in ins_addr or \
(not ins_addr.startswith(".") and "." in ins_addr): # It's for ppc
if ":" not in ins_addr: # Let's make fake line number
ins_addr = ins_addr + ": 0"
else:
words = ins_addr.split(":")
ins_addr = ""
for column in words:
if ins_addr == "":
ins_addr = column + ":"
else:
ins_addr = ins_addr + " " + column
for line_number in args[1:]:
ins_addr = ins_addr + " " + line_number
kernel_ver, release_ver = get_kernel_version()
disasm_str = "/usr/src/debug/kernel-%s/linux-%s/%s" % \
(kernel_ver, release_ver, ins_addr)
else:
command_str = "dis %s %s" % (options, ins_addr)
disasm_str = exec_crash_command(command_str)
if (disasm_str.startswith("symbol not found")):
print(disasm_str)
return
result_str = ""
if (o.noaction or not disasm_str.startswith("/")):
result_str = disasm_str
else:
python_list = {"python", "python3", "python2"}
for python_cmd in python_list:
if (is_command_exist(python_cmd)):
kerver, relver = get_kernel_version()
ver_line = ""
if kerver.find(".rt") >= 0: # rt kernel
relver = relver[:relver.find("-")]
ver_line = "/usr/src/debug/kernel-%s/linux-%s/" % \
(relver, kerver)
else:
ver_line = disasm_str.splitlines()[0]
disasm_str = ver_line + "\n" + disasm_str
result_str = crashhelper.run_gdb_command("!echo '%s' | %s %s %s" % \
(disasm_str, python_cmd, \
disasm_path, cmd_options))
break
if (o.graph):
result_str = draw_branches(result_str, o.jump_op_list)
set_stack_data(disasm_str, ins_addr) # To retreive stack data
if o.stackaddr != "":
stackaddr_list = [int(o.stackaddr, 16)]
set_asm_colors()
crashcolor.set_color(crashcolor.RESET)
for one_line in result_str.splitlines():
idx = one_line.find("0x")
if idx >= 0:
line = one_line[idx:]
graph = one_line[:idx]
is_disasm_line = True
else: # source line
prog = re.compile(r"(?P<line_number>[0-9]+)")
m = prog.search(one_line)
line = None
if m is not None:
line = m.group("line_number")
if line == None:
prog = re.compile(r"/[a-zA-Z]")
line = prog.match(one_line)
if line == None:
line = one_line
idx = one_line.find(line)
line = one_line[idx:]
graph = one_line[:idx]
is_disasm_line = False
idx = 2
default_color = crashcolor.RESET
for char in graph:
color = default_color
idx = idx + 1
if char == '+':
default_color = idx
color = default_color
elif char == '|':
color = idx
elif char == '-' or char == '=':
color = default_color
elif char == '>' or char == '*':
color = crashcolor.RED
else:
color = crashcolor.RESET
crashcolor.set_color(color)
print(char, end='')
if idx == crashcolor.MAX_COLOR:
idx = 2
if idx == 7: # For black background situation
idx = idx + 1
if is_disasm_line == True:
line = interpret_one_line(line) # Retreive stack data if possible
words = line.split()
if len(words) > 2:
if (o.symbol and is_address(words[-1])
== True): # Translate address into symbol
line = ("%s%s" % (words[-1], find_symbol(words[-1]))).join(
line.rsplit(words[-1], 1))
color_str = get_colored_asm(words[2].strip())
idx = line.find(words[2], len(words[0]) + len(words[1]) + 1)
print(line[:idx], end='')
if color_str != None:
crashcolor.set_color(color_str)
print(line[idx:idx + len(words[2])], end='')
if color_str != None:
crashcolor.set_color(operand_color)
if len(words) >= 4: # Not handling callq or jmp.
line = line[idx:]
print("%s" % line[len(words[2]):line.find(words[3])], end='')
idx = line.find(words[3])
op_list = words[3].split(",")
line = line[idx:]
for i in range(0, len(op_list)):
opval = op_list[i]
color_str = get_colored_arg(opval)
if color_str == None:
crashcolor.set_color(crashcolor.RESET)
else:
crashcolor.set_color(color_str)
if i < len(op_list) - 1:
next_idx = line.find(op_list[i + 1], len(opval))
else:
next_idx = len(opval)
print(line[:next_idx], end='')
if color_str == None:
crashcolor.set_color(crashcolor.RESET)
else:
crashcolor.set_color(operand_color)
line = line[next_idx:]
crashcolor.set_color(crashcolor.RESET)
if (is_disasm_line):
comment_idx = line.find(";")
if comment_idx > -1:
print(line[:comment_idx], end='')
crashcolor.set_color(crashcolor.LIGHTYELLOW)
print(line[comment_idx:])
else:
comment_idx = line.find("<")
if comment_idx > -1:
print(line[:comment_idx], end='')
crashcolor.set_color(crashcolor.LIGHTMAGENTA)
print(line[comment_idx:])
else:
print("%s" % line)
else:
print(line)
crashcolor.set_color(crashcolor.RESET)
else:
print(line[idx + len(words[2]):])
crashcolor.set_color(crashcolor.RESET)
else:
print(line)
crashcolor.set_color(crashcolor.RESET)
def disasm(ins_addr, o, args, cmd_path_list):
global asm_color_dict
path_list = cmd_path_list.split(':')
disasm_path = ""
for path in path_list:
if os.path.exists(path + "/disasm.py"):
disasm_path = path + "/disasm.py"
break
if disasm_path == "":
print("Can't find disasm.py in path")
return
options = "-l"
if (o.reverse):
options = options + " -r"
cmd_options = ""
if (o.graph):
cmd_options = cmd_options + " -g"
if (o.fullsource):
cmd_options = cmd_options + " -f"
if (not o.reverse):
options = options + " -r"
if (o.jump_op_list != ""):
cmd_options = cmd_options + " -j '" + o.jump_op_list + "'"
if ":" in ins_addr or \
(not ins_addr.startswith(".") and "." in ins_addr): # It's for ppc
if ":" not in ins_addr: # Let's make fake line number
ins_addr = ins_addr + ": 0"
else:
words = ins_addr.split(":")
ins_addr = ""
for column in words:
if ins_addr == "":
ins_addr = column + ":"
else:
ins_addr = ins_addr + " " + column
for line_number in args[1:]:
ins_addr = ins_addr + " " + line_number
kernel_ver, release_ver = get_kernel_version()
disasm_str = "/usr/src/debug/kernel-%s/linux-%s/%s" % \
(kernel_ver, release_ver, ins_addr)
else:
command_str = "dis %s %s" % (options, ins_addr)
disasm_str = exec_crash_command(command_str)
if (disasm_str.startswith("symbol not found")):
print (disasm_str)
return
result_str = crashhelper.run_gdb_command("!echo '%s' | python %s %s" % \
(disasm_str, disasm_path, cmd_options))
set_asm_colors()
crashcolor.set_color(crashcolor.RESET)
for one_line in result_str.splitlines():
idx = one_line.find("0x")
if idx >= 0:
line = one_line[idx:]
graph = one_line[:idx]
else: # source line
prog = re.compile(r"(?P<line_number>[0-9]+)")
m = prog.search(one_line)
line = None
if m is not None:
line = m.group("line_number")
if line == None:
prog = re.compile(r"/[a-zA-Z]")
line = prog.match(one_line)
if line == None:
line = one_line
idx = one_line.find(line)
line = one_line[idx:]
graph = one_line[:idx]
idx = 2
default_color = crashcolor.RESET
for char in graph:
color = default_color
idx = idx + 1
if char == '+':
default_color = idx
color = default_color
elif char == '|':
color = idx
elif char == '-' or char == '=':
color = default_color
elif char == '>' or char == '*':
color = crashcolor.RED
else:
color = crashcolor.RESET
crashcolor.set_color(color)
print(char, end='')
if idx == crashcolor.MAX_COLOR:
idx = 2
words = line.split()
if len(words) > 2:
color_str = get_colored_asm(words[2].strip())
idx = line.find(words[2], len(words[0]) + len(words[1]) + 1)
print(line[:idx], end='')
if color_str != None:
crashcolor.set_color(color_str)
print(line[idx:idx+len(words[2])], end='')
if color_str != None:
crashcolor.set_color(operand_color)
if len(words) >= 4: # Not handling callq or jmp.
print(line[idx+len(words[2]):line.find(words[3])],
end='')
idx = line.find(words[3])
op_list = words[3].split(",")
line = line[idx:]
for i in range(0, len(op_list)):
opval = op_list[i]
color_str = get_colored_arg(opval)
if color_str == None:
crashcolor.set_color(crashcolor.RESET)
else:
crashcolor.set_color(color_str)
if i < len(op_list) - 1:
next_idx = line.find(op_list[i + 1], len(opval))
else:
next_idx = len(opval)
print(line[:next_idx], end='')
if color_str == None:
crashcolor.set_color(crashcolor.RESET)
else:
crashcolor.set_color(operand_color)
line = line[next_idx:]
crashcolor.set_color(crashcolor.RESET)
print(line)
else:
print(line[idx+len(words[2]):])
crashcolor.set_color(crashcolor.RESET)
else:
print(line)
crashcolor.set_color(crashcolor.RESET)