[Lldb-commits] [lldb] r241307 - Improve the packet dumper to be able to read the target.xml so it can dump register values when disassembling the packet log.
Greg Clayton
gclayton at apple.com
Thu Jul 2 15:22:46 PDT 2015
Author: gclayton
Date: Thu Jul 2 17:22:45 2015
New Revision: 241307
URL: http://llvm.org/viewvc/llvm-project?rev=241307&view=rev
Log:
Improve the packet dumper to be able to read the target.xml so it can dump register values when disassembling the packet log.
Modified:
lldb/trunk/examples/python/gdbremote.py
Modified: lldb/trunk/examples/python/gdbremote.py
URL: http://llvm.org/viewvc/llvm-project/lldb/trunk/examples/python/gdbremote.py?rev=241307&r1=241306&r2=241307&view=diff
==============================================================================
--- lldb/trunk/examples/python/gdbremote.py (original)
+++ lldb/trunk/examples/python/gdbremote.py Thu Jul 2 17:22:45 2015
@@ -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_arg
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, arg
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, c
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" },
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