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Improve the packet dumper to be able to read the target.xml so it can dump register values when disassembling the packet log. 

llvm-svn: 241307
This commit is contained in:
Greg Clayton 2015-07-02 22:22:45 +00:00
parent 85365cd72a
commit 374b67144a
1 changed files with 62 additions and 10 deletions
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72
lldb/examples/python/gdbremote.py
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@ -16,6 +16,7 @@
# available.
#----------------------------------------------------------------------
import binascii
import commands
import math
import optparse
@ -25,6 +26,7 @@ import shlex
import string
import sys
import tempfile
import xml.etree.ElementTree as ET
#----------------------------------------------------------------------
# Global variables
@ -397,6 +399,13 @@ class Packet:
uval |= self.get_hex_uint8() << 56
return uval
def get_hex_ascii_str(self, n=0):
hex_chars = self.get_hex_chars(n)
if hex_chars:
return binascii.unhexlify(hex_chars)
else:
return None
def get_hex_chars(self, n = 0):
str_len = len(self.str)
if n == 0:
@ -477,16 +486,17 @@ def rsp_stop_reply(options, cmd, cmd_args, rsp):
stop_type = packet.get_char()
if stop_type == 'T' or stop_type == 'S':
signo = packet.get_hex_uint8()
print ' signal = %i' % signo
key_value_pairs = packet.get_key_value_pairs()
for key_value_pair in key_value_pairs:
key = key_value_pair[0]
value = key_value_pair[1]
if is_hex_byte(key):
reg_num = Packet(key).get_hex_uint8()
print ' ' + get_register_name_equal_value (options, reg_num, value)
else:
print ' %s = %s' % (key, value)
if reg_num < len(g_register_infos):
reg_info = g_register_infos[reg_num]
key_value_pair[0] = reg_info.name()
key_value_pair[1] = reg_info.get_value_from_hex_string (key_value_pair[1])
key_value_pairs.insert(0, ['signal', signo])
dump_key_value_pairs (key_value_pairs)
elif stop_type == 'W':
exit_status = packet.get_hex_uint8()
print 'exit (status=%i)' % exit_status
@ -500,6 +510,40 @@ def cmd_unknown_packet(options, cmd, args):
else:
print "cmd: %s", cmd
def cmd_qXfer(options, cmd, args):
# $qXfer:features:read:target.xml:0,1ffff#14
print "read target special data %s" % (args)
def rsp_qXfer(options, cmd, cmd_args, rsp):
data = string.split(cmd_args, ':')
if data[0] == 'features':
if data[1] == 'read':
filename, extension = os.path.splitext(data[2])
if extension == '.xml':
response = Packet(rsp)
xml_string = response.get_hex_ascii_str()
ch = xml_string[0]
if ch == 'l':
xml_string = xml_string[1:]
xml_root = ET.fromstring(xml_string)
for reg_element in xml_root.findall("./feature/reg"):
if not 'value_regnums' in reg_element.attrib:
reg_info = RegisterInfo([])
if 'name' in reg_element.attrib:
reg_info.info['name'] = reg_element.attrib['name']
else:
reg_info.info['name'] = 'unspecified'
if 'encoding' in reg_element.attrib:
reg_info.info['encoding'] = reg_element.attrib['encoding']
else:
reg_info.info['encoding'] = 'uint'
if 'offset' in reg_element.attrib:
reg_info.info['offset'] = reg_element.attrib['offset']
if 'bitsize' in reg_element.attrib:
reg_info.info['bitsize'] = reg_element.attrib['bitsize']
g_register_infos.append(reg_info)
def cmd_query_packet(options, cmd, args):
if args:
print "query: %s, args: %s" % (cmd, args)
@ -525,15 +569,22 @@ def rsp_ok_means_success(options, cmd, cmd_args, rsp):
else:
print "%s%s -> %s" % (cmd, cmd_args, rsp)
def dump_key_value_pairs(key_value_pairs):
max_key_len = 0
for key_value_pair in key_value_pairs:
key_len = len(key_value_pair[0])
if max_key_len < key_len:
max_key_len = key_len
for key_value_pair in key_value_pairs:
key = key_value_pair[0]
value = key_value_pair[1]
print "%*s = %s" % (max_key_len, key, value)
def rsp_dump_key_value_pairs(options, cmd, cmd_args, rsp):
if rsp:
packet = Packet(rsp)
key_value_pairs = packet.get_key_value_pairs()
for key_value_pair in key_value_pairs:
print key_value_pair
key = key_value_pair[0]
value = key_value_pair[1]
print " %s = %s" % (key, value)
dump_key_value_pairs(key_value_pairs)
else:
print "not supported"
@ -850,6 +901,7 @@ gdb_remote_commands = {
'qMemoryRegionInfo' : { 'cmd' : cmd_mem_rgn_info , 'rsp' : rsp_dump_key_value_pairs, 'name' : "get memory region information" },
'qProcessInfo' : { 'cmd' : cmd_query_packet , 'rsp' : rsp_dump_key_value_pairs, 'name' : "get process info" },
'qSupported' : { 'cmd' : cmd_query_packet , 'rsp' : rsp_ok_means_supported , 'name' : "query supported" },
'qXfer:' : { 'cmd' : cmd_qXfer , 'rsp' : rsp_qXfer , 'name' : "qXfer" },
'm' : { 'cmd' : cmd_read_memory , 'rsp' : rsp_memory_bytes , 'name' : "read memory" },
'M' : { 'cmd' : cmd_write_memory , 'rsp' : rsp_ok_means_success , 'name' : "write memory" },
'_M' : { 'cmd' : cmd_alloc_memory , 'rsp' : rsp_alloc_memory , 'name' : "allocate memory" },