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"""
Test lldb data formatter subsystem.
"""
from __future__ import print_function
import os
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class CppDataFormatterTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break at.
self.line = line_number('main.cpp', '// Set break point at this line.')
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24462: Data formatters have problems on Windows")
def test_with_run_command(self):
"""Test that that file and class static variables display correctly."""
self.build()
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line(
self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs=['stopped',
'stop reason = breakpoint'])
self.expect("frame variable",
substrs=['(Speed) SPILookHex = 5.55' # Speed by default is 5.55.
])
# This is the function to remove the custom formats in order to have a
# clean slate for the next test case.
def cleanup():
self.runCmd('type format clear', check=False)
self.runCmd('type summary clear', check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
self.runCmd("type format add -C yes -f x Speed BitField")
self.runCmd("type format add -C no -f c RealNumber")
self.runCmd("type format add -C no -f x Type2")
self.runCmd("type format add -C yes -f c Type1")
# The type format list should show our custom formats.
self.expect("type format list",
substrs=['RealNumber',
'Speed',
'BitField',
'Type1',
'Type2'])
self.expect("frame variable",
patterns=['\(Speed\) SPILookHex = 0x[0-9a-f]+' # Speed should look hex-ish now.
])
# gcc4.2 on Mac OS X skips typedef chains in the DWARF output
if self.getCompiler() in ['clang', 'llvm-gcc']:
self.expect("frame variable",
patterns=['\(SignalMask\) SMILookHex = 0x[0-9a-f]+' # SignalMask should look hex-ish now.
])
self.expect("frame variable", matching=False,
patterns=['\(Type4\) T4ILookChar = 0x[0-9a-f]+' # Type4 should NOT look hex-ish now.
])
# Now let's delete the 'Speed' custom format.
self.runCmd("type format delete Speed")
# The type format list should not show 'Speed' at this point.
self.expect("type format list", matching=False,
substrs=['Speed'])
# Delete type format for 'Speed', we should expect an error message.
self.expect("type format delete Speed", error=True,
substrs=['no custom formatter for Speed'])
self.runCmd(
"type summary add --summary-string \"arr = ${var%s}\" -x \"char \\[[0-9]+\\]\" -v")
self.expect("frame variable strarr",
substrs=['arr = "Hello world!"'])
self.runCmd("type summary clear")
self.runCmd(
"type summary add --summary-string \"ptr = ${var%s}\" \"char *\" -v")
self.expect("frame variable strptr",
substrs=['ptr = "Hello world!"'])
self.runCmd(
"type summary add --summary-string \"arr = ${var%s}\" -x \"char \\[[0-9]+\\]\" -v")
self.expect("frame variable strarr",
substrs=['arr = "Hello world!'])
# check that rdar://problem/10011145 (Standard summary format for
# char[] doesn't work as the result of "expr".) is solved
self.expect("p strarr",
substrs=['arr = "Hello world!'])
self.expect("frame variable strptr",
substrs=['ptr = "Hello world!"'])
self.expect("p strptr",
substrs=['ptr = "Hello world!"'])
self.expect(
"p (char*)\"1234567890123456789012345678901234567890123456789012345678901234ABC\"",
substrs=[
'(char *) $',
' = ptr = ',
' "1234567890123456789012345678901234567890123456789012345678901234ABC"'])
self.runCmd("type summary add -c Point")
self.expect("frame variable iAmSomewhere",
substrs=['x = 4',
'y = 6'])
self.expect("type summary list",
substrs=['Point',
'one-line'])
self.runCmd("type summary add --summary-string \"y=${var.y%x}\" Point")
self.expect("frame variable iAmSomewhere",
substrs=['y=0x'])
self.runCmd(
"type summary add --summary-string \"y=${var.y},x=${var.x}\" Point")
self.expect("frame variable iAmSomewhere",
substrs=['y=6',
'x=4'])
self.runCmd("type summary add --summary-string \"hello\" Point -e")
self.expect("type summary list",
substrs=['Point',
'show children'])
self.expect("frame variable iAmSomewhere",
substrs=['hello',
'x = 4',
'}'])
self.runCmd(
"type summary add --summary-string \"Sign: ${var[31]%B} Exponent: ${var[23-30]%x} Mantissa: ${var[0-22]%u}\" ShowMyGuts")
self.expect("frame variable cool_pointer->floating",
substrs=['Sign: true',
'Exponent: 0x',
'80'])
self.runCmd("type summary add --summary-string \"a test\" i_am_cool")
self.expect("frame variable cool_pointer",
substrs=['a test'])
self.runCmd(
"type summary add --summary-string \"a test\" i_am_cool --skip-pointers")
self.expect("frame variable cool_pointer",
substrs=['a test'],
matching=False)
self.runCmd(
"type summary add --summary-string \"${var[1-3]}\" \"int [5]\"")
self.expect("frame variable int_array",
substrs=['2',
'3',
'4'])
self.runCmd("type summary clear")
self.runCmd(
"type summary add --summary-string \"${var[0-2].integer}\" \"i_am_cool *\"")
self.runCmd(
"type summary add --summary-string \"${var[2-4].integer}\" \"i_am_cool [5]\"")
self.expect("frame variable cool_array",
substrs=['1,1,6'])
self.expect("frame variable cool_pointer",
substrs=['3,0,0'])
# test special symbols for formatting variables into summaries
self.runCmd(
"type summary add --summary-string \"cool object @ ${var%L}\" i_am_cool")
self.runCmd("type summary delete \"i_am_cool [5]\"")
# this test might fail if the compiler tries to store
# these values into registers.. hopefully this is not
# going to be the case
self.expect("frame variable cool_array",
substrs=['[0] = cool object @ 0x',
'[1] = cool object @ 0x',
'[2] = cool object @ 0x',
'[3] = cool object @ 0x',
'[4] = cool object @ 0x'])
# test getting similar output by exploiting ${var} = 'type @ location'
# for aggregates
self.runCmd("type summary add --summary-string \"${var}\" i_am_cool")
# this test might fail if the compiler tries to store
# these values into registers.. hopefully this is not
# going to be the case
self.expect("frame variable cool_array",
substrs=['[0] = i_am_cool @ 0x',
'[1] = i_am_cool @ 0x',
'[2] = i_am_cool @ 0x',
'[3] = i_am_cool @ 0x',
'[4] = i_am_cool @ 0x'])
# test getting same output by exploiting %T and %L together for
# aggregates
self.runCmd(
"type summary add --summary-string \"${var%T} @ ${var%L}\" i_am_cool")
# this test might fail if the compiler tries to store
# these values into registers.. hopefully this is not
# going to be the case
self.expect("frame variable cool_array",
substrs=['[0] = i_am_cool @ 0x',
'[1] = i_am_cool @ 0x',
'[2] = i_am_cool @ 0x',
'[3] = i_am_cool @ 0x',
'[4] = i_am_cool @ 0x'])
self.runCmd("type summary add --summary-string \"goofy\" i_am_cool")
self.runCmd(
"type summary add --summary-string \"${var.second_cool%S}\" i_am_cooler")
self.expect("frame variable the_coolest_guy",
substrs=['(i_am_cooler) the_coolest_guy = goofy'])
# check that unwanted type specifiers are removed
self.runCmd("type summary delete i_am_cool")
self.runCmd(
"type summary add --summary-string \"goofy\" \"class i_am_cool\"")
self.expect("frame variable the_coolest_guy",
substrs=['(i_am_cooler) the_coolest_guy = goofy'])
self.runCmd("type summary delete i_am_cool")
self.runCmd(
"type summary add --summary-string \"goofy\" \"enum i_am_cool\"")
self.expect("frame variable the_coolest_guy",
substrs=['(i_am_cooler) the_coolest_guy = goofy'])
self.runCmd("type summary delete i_am_cool")
self.runCmd(
"type summary add --summary-string \"goofy\" \"struct i_am_cool\"")
self.expect("frame variable the_coolest_guy",
substrs=['(i_am_cooler) the_coolest_guy = goofy'])
# many spaces, but we still do the right thing
self.runCmd("type summary delete i_am_cool")
self.runCmd(
"type summary add --summary-string \"goofy\" \"union i_am_cool\"")
self.expect("frame variable the_coolest_guy",
substrs=['(i_am_cooler) the_coolest_guy = goofy'])
# but that not *every* specifier is removed
self.runCmd("type summary delete i_am_cool")
self.runCmd(
"type summary add --summary-string \"goofy\" \"wrong i_am_cool\"")
self.expect("frame variable the_coolest_guy", matching=False,
substrs=['(i_am_cooler) the_coolest_guy = goofy'])
# check that formats are not sticking since that is the behavior we
# want
self.expect("frame variable iAmInt --format hex",
substrs=['(int) iAmInt = 0x00000001'])
self.expect(
"frame variable iAmInt",
matching=False,
substrs=['(int) iAmInt = 0x00000001'])
self.expect("frame variable iAmInt", substrs=['(int) iAmInt = 1'])
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