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Take advantage of the newly added SBSymbol.GetType() API to check whether we 

have a Code symbol and do disassembly on it.

llvm-svn: 128604
This commit is contained in:
Johnny Chen 2011-03-31 01:34:55 +00:00
parent 4680e9219a
commit d16c105c3d
1 changed files with 12 additions and 61 deletions
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73
lldb/utils/test/lldb-disasm.py
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@ -76,10 +76,6 @@ def run_command(ci, cmd, res, echoInput=True, echoOutput=True):
print "run command failed!"
print "run_command error:", res.GetError()
def IsCodeType(symbol):
"""Check whether an SBSymbol represents code."""
return True
def do_lldb_disassembly(lldb_commands, exe, disassemble_options, num_symbols, symbols_to_disassemble):
import lldb, atexit, re
from lldbutil import lldb_iter
@ -107,12 +103,20 @@ def do_lldb_disassembly(lldb_commands, exe, disassemble_options, num_symbols, sy
for cmd in lldb_commands:
run_command(ci, cmd, res)
# Now issue the file command.
run_command(ci, 'file %s' % exe, res)
# Create a target.
target = dbg.CreateTarget(exe)
#target = dbg.CreateTarget(exe)
target = dbg.GetSelectedTarget()
stream = lldb.SBStream()
def IsCodeType(symbol):
"""Check whether an SBSymbol represents code."""
return symbol.GetType() == lldb.eSymbolTypeCode
# Define a generator for the symbols to disassemble.
def symbol_iter_2(num, symbols, target):
def symbol_iter(num, symbols, target):
# If we specify the symbols to disassemble, ignore symbol table dump.
if symbols:
for i in range(len(symbols)):
@ -132,6 +136,7 @@ def do_lldb_disassembly(lldb_commands, exe, disassemble_options, num_symbols, sy
if IsCodeType(s):
if limited:
count = count + 1
print "returning symbol:", s.GetName()
yield s.GetName()
#print "start address:", s.GetStartAddress()
#print "end address:", s.GetEndAddress()
@ -139,62 +144,8 @@ def do_lldb_disassembly(lldb_commands, exe, disassemble_options, num_symbols, sy
#print "symbol description:", stream.GetData()
#stream.Clear()
# Now issue the file command.
run_command(ci, 'file %s' % exe, res)
# Send the 'image dump symtab' command.
run_command(ci, 'image dump symtab', res, echoOutput=False)
if not res.Succeeded():
print "Symbol table dump failed!"
sys.exit(-2)
# Do disassembly on the symbols.
# The following line from the 'image dump symtab' gives us a hint as to the
# starting char position of the symbol name.
# Index UserID DSX Type File Address/Value Load Address Size Flags Name
# ------- ------ --- ------------ ------------------ ------------------ ------------------ ---------- ----------------------------------
# [ 0] 0 Code 0x0000000000000820 0x0000000000000000 0x000e0008 sandbox_init_internal
symtab_dump = res.GetOutput()
symbol_pos = -1
code_type_pos = -1
code_type_end = -1
# Heuristics: the first 50 lines should give us the answer for symbol_pos and code_type_pos.
for line in symtab_dump.splitlines()[:50]:
print "line:", line
if re.match("^Index.*Name$", line):
symbol_pos = line.rfind('Name')
#print "symbol_pos:", symbol_pos
code_type_pos = line.find('Type')
code_type_end = code_type_pos + 4
#print "code_type_pos:", code_type_pos
break
# Define a generator for the symbols to disassemble.
def symbol_iter(num, symbols, symtab_dump):
# If we specify the symbols to disassemble, ignore symbol table dump.
if symbols:
for i in range(len(symbols)):
print "symbol:", symbols[i]
yield symbols[i]
else:
limited = True if num != -1 else False
if limited:
count = 0
for line in symtab_dump.splitlines():
if limited and count >= num:
return
if line[code_type_pos:code_type_end] == 'Code':
symbol = line[symbol_pos:]
print "symbol:", symbol
if limited:
count = count + 1
print "symbol count:", count
yield symbol
# Disassembly time.
for symbol in symbol_iter(num_symbols, symbols_to_disassemble, symtab_dump):
for symbol in symbol_iter(num_symbols, symbols_to_disassemble, target):
cmd = "disassemble %s '%s'" % (disassemble_options, symbol)
run_command(ci, cmd, res)