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| """
Test lldb settings command.
"""
from __future__ import print_function
import os
import re
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class SettingsCommandTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
NO_DEBUG_INFO_TESTCASE = True
def test_apropos_should_also_search_settings_description(self):
"""Test that 'apropos' command should also search descriptions for the settings variables."""
self.expect("apropos 'environment variable'",
substrs=["target.env-vars",
"environment variables",
"executable's environment"])
def test_append_target_env_vars(self):
"""Test that 'append target.run-args' works."""
# Append the env-vars.
self.runCmd('settings append target.env-vars MY_ENV_VAR=YES')
# And add hooks to restore the settings during tearDown().
self.addTearDownHook(
lambda: self.runCmd("settings clear target.env-vars"))
# Check it immediately!
self.expect('settings show target.env-vars',
substrs=['MY_ENV_VAR=YES'])
def test_insert_before_and_after_target_run_args(self):
"""Test that 'insert-before/after target.run-args' works."""
# Set the run-args first.
self.runCmd('settings set target.run-args a b c')
# And add hooks to restore the settings during tearDown().
self.addTearDownHook(
lambda: self.runCmd("settings clear target.run-args"))
# Now insert-before the index-0 element with '__a__'.
self.runCmd('settings insert-before target.run-args 0 __a__')
# And insert-after the index-1 element with '__A__'.
self.runCmd('settings insert-after target.run-args 1 __A__')
# Check it immediately!
self.expect('settings show target.run-args',
substrs=['target.run-args',
'[0]: "__a__"',
'[1]: "a"',
'[2]: "__A__"',
'[3]: "b"',
'[4]: "c"'])
def test_replace_target_run_args(self):
"""Test that 'replace target.run-args' works."""
# Set the run-args and then replace the index-0 element.
self.runCmd('settings set target.run-args a b c')
# And add hooks to restore the settings during tearDown().
self.addTearDownHook(
lambda: self.runCmd("settings clear target.run-args"))
# Now replace the index-0 element with 'A', instead.
self.runCmd('settings replace target.run-args 0 A')
# Check it immediately!
self.expect('settings show target.run-args',
substrs=['target.run-args (arguments) =',
'[0]: "A"',
'[1]: "b"',
'[2]: "c"'])
def test_set_prompt(self):
"""Test that 'set prompt' actually changes the prompt."""
# Set prompt to 'lldb2'.
self.runCmd("settings set prompt 'lldb2 '")
# Immediately test the setting.
self.expect("settings show prompt", SETTING_MSG("prompt"),
startstr='prompt (string) = "lldb2 "')
# The overall display should also reflect the new setting.
self.expect("settings show", SETTING_MSG("prompt"),
substrs=['prompt (string) = "lldb2 "'])
# Use '-r' option to reset to the original default prompt.
self.runCmd("settings clear prompt")
def test_set_term_width(self):
"""Test that 'set term-width' actually changes the term-width."""
self.runCmd("settings set term-width 70")
# Immediately test the setting.
self.expect("settings show term-width", SETTING_MSG("term-width"),
startstr="term-width (int) = 70")
# The overall display should also reflect the new setting.
self.expect("settings show", SETTING_MSG("term-width"),
substrs=["term-width (int) = 70"])
# rdar://problem/10712130
def test_set_frame_format(self):
"""Test that 'set frame-format' with a backtick char in the format string works as well as fullpath."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
def cleanup():
self.runCmd(
"settings set frame-format %s" %
self.format_string, check=False)
# Execute the cleanup function during test case tear down.
self.addTearDownHook(cleanup)
self.runCmd("settings show frame-format")
m = re.match(
'^frame-format \(format-string\) = "(.*)\"$',
self.res.GetOutput())
self.assertTrue(m, "Bad settings string")
self.format_string = m.group(1)
# Change the default format to print function.name rather than
# function.name-with-args
format_string = "frame #${frame.index}: ${frame.pc}{ ${module.file.basename}\`${function.name}{${function.pc-offset}}}{ at ${line.file.fullpath}:${line.number}}{, lang=${language}}\n"
self.runCmd("settings set frame-format %s" % format_string)
# Immediately test the setting.
self.expect("settings show frame-format", SETTING_MSG("frame-format"),
substrs=[format_string])
self.runCmd("breakpoint set -n main")
self.runCmd("process launch --working-dir '{0}'".format(self.get_process_working_directory()),
RUN_SUCCEEDED)
self.expect("thread backtrace",
substrs=["`main", self.getSourceDir()])
def test_set_auto_confirm(self):
"""Test that after 'set auto-confirm true', manual confirmation should not kick in."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
self.runCmd("settings set auto-confirm true")
# Immediately test the setting.
self.expect("settings show auto-confirm", SETTING_MSG("auto-confirm"),
startstr="auto-confirm (boolean) = true")
# Now 'breakpoint delete' should just work fine without confirmation
# prompt from the command interpreter.
self.runCmd("breakpoint set -n main")
self.expect("breakpoint delete",
startstr="All breakpoints removed")
# Restore the original setting of auto-confirm.
self.runCmd("settings clear auto-confirm")
self.expect("settings show auto-confirm", SETTING_MSG("auto-confirm"),
startstr="auto-confirm (boolean) = false")
@skipIf(archs=no_match(['x86_64', 'i386', 'i686']))
def test_disassembler_settings(self):
"""Test that user options for the disassembler take effect."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# AT&T syntax
self.runCmd("settings set target.x86-disassembly-flavor att")
self.runCmd("settings set target.use-hex-immediates false")
self.expect("disassemble -n numberfn",
substrs=["$90"])
self.runCmd("settings set target.use-hex-immediates true")
self.runCmd("settings set target.hex-immediate-style c")
self.expect("disassemble -n numberfn",
substrs=["$0x5a"])
self.runCmd("settings set target.hex-immediate-style asm")
self.expect("disassemble -n numberfn",
substrs=["$5ah"])
# Intel syntax
self.runCmd("settings set target.x86-disassembly-flavor intel")
self.runCmd("settings set target.use-hex-immediates false")
self.expect("disassemble -n numberfn",
substrs=["90"])
self.runCmd("settings set target.use-hex-immediates true")
self.runCmd("settings set target.hex-immediate-style c")
self.expect("disassemble -n numberfn",
substrs=["0x5a"])
self.runCmd("settings set target.hex-immediate-style asm")
self.expect("disassemble -n numberfn",
substrs=["5ah"])
@skipIfDarwinEmbedded # <rdar://problem/34446098> debugserver on ios etc can't write files
def test_run_args_and_env_vars(self):
"""Test that run-args and env-vars are passed to the launched process."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Set the run-args and the env-vars.
# And add hooks to restore the settings during tearDown().
self.runCmd('settings set target.run-args A B C')
self.addTearDownHook(
lambda: self.runCmd("settings clear target.run-args"))
self.runCmd('settings set target.env-vars ["MY_ENV_VAR"]=YES')
self.addTearDownHook(
lambda: self.runCmd("settings clear target.env-vars"))
self.runCmd("process launch --working-dir '{0}'".format(self.get_process_working_directory()),
RUN_SUCCEEDED)
# Read the output file produced by running the program.
output = lldbutil.read_file_from_process_wd(self, "output2.txt")
self.expect(
output,
exe=False,
substrs=[
"argv[1] matches",
"argv[2] matches",
"argv[3] matches",
"Environment variable 'MY_ENV_VAR' successfully passed."])
@skipIfRemote # it doesn't make sense to send host env to remote target
def test_pass_host_env_vars(self):
"""Test that the host env vars are passed to the launched process."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# By default, inherit-env is 'true'.
self.expect(
'settings show target.inherit-env',
"Default inherit-env is 'true'",
startstr="target.inherit-env (boolean) = true")
# Set some host environment variables now.
os.environ["MY_HOST_ENV_VAR1"] = "VAR1"
os.environ["MY_HOST_ENV_VAR2"] = "VAR2"
# This is the function to unset the two env variables set above.
def unset_env_variables():
os.environ.pop("MY_HOST_ENV_VAR1")
os.environ.pop("MY_HOST_ENV_VAR2")
self.addTearDownHook(unset_env_variables)
self.runCmd("process launch --working-dir '{0}'".format(self.get_process_working_directory()),
RUN_SUCCEEDED)
# Read the output file produced by running the program.
output = lldbutil.read_file_from_process_wd(self, "output1.txt")
self.expect(
output,
exe=False,
substrs=[
"The host environment variable 'MY_HOST_ENV_VAR1' successfully passed.",
"The host environment variable 'MY_HOST_ENV_VAR2' successfully passed."])
@skipIfDarwinEmbedded # <rdar://problem/34446098> debugserver on ios etc can't write files
def test_set_error_output_path(self):
"""Test that setting target.error/output-path for the launched process works."""
self.build()
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Set the error-path and output-path and verify both are set.
self.runCmd("settings set target.error-path '{0}'".format(
lldbutil.append_to_process_working_directory(self, "stderr.txt")))
self.runCmd("settings set target.output-path '{0}".format(
lldbutil.append_to_process_working_directory(self, "stdout.txt")))
# And add hooks to restore the original settings during tearDown().
self.addTearDownHook(
lambda: self.runCmd("settings clear target.output-path"))
self.addTearDownHook(
lambda: self.runCmd("settings clear target.error-path"))
self.expect("settings show target.error-path",
SETTING_MSG("target.error-path"),
substrs=['target.error-path (file)', 'stderr.txt"'])
self.expect("settings show target.output-path",
SETTING_MSG("target.output-path"),
substrs=['target.output-path (file)', 'stdout.txt"'])
self.runCmd("process launch --working-dir '{0}'".format(self.get_process_working_directory()),
RUN_SUCCEEDED)
output = lldbutil.read_file_from_process_wd(self, "stderr.txt")
message = "This message should go to standard error."
if lldbplatformutil.hasChattyStderr(self):
self.expect(output, exe=False, substrs=[message])
else:
self.expect(output, exe=False, startstr=message)
output = lldbutil.read_file_from_process_wd(self, "stdout.txt")
self.expect(output, exe=False,
startstr="This message should go to standard out.")
def test_print_dictionary_setting(self):
self.runCmd("settings clear target.env-vars")
self.runCmd("settings set target.env-vars [\"MY_VAR\"]=some-value")
self.expect("settings show target.env-vars",
substrs=["MY_VAR=some-value"])
self.runCmd("settings clear target.env-vars")
def test_print_array_setting(self):
self.runCmd("settings clear target.run-args")
self.runCmd("settings set target.run-args gobbledy-gook")
self.expect("settings show target.run-args",
substrs=['[0]: "gobbledy-gook"'])
self.runCmd("settings clear target.run-args")
def test_settings_with_quotes(self):
self.runCmd("settings clear target.run-args")
self.runCmd("settings set target.run-args a b c")
self.expect("settings show target.run-args",
substrs=['[0]: "a"',
'[1]: "b"',
'[2]: "c"'])
self.runCmd("settings set target.run-args 'a b c'")
self.expect("settings show target.run-args",
substrs=['[0]: "a b c"'])
self.runCmd("settings clear target.run-args")
self.runCmd("settings clear target.env-vars")
self.runCmd(
'settings set target.env-vars ["MY_FILE"]="this is a file name with spaces.txt"')
self.expect("settings show target.env-vars",
substrs=['MY_FILE=this is a file name with spaces.txt'])
self.runCmd("settings clear target.env-vars")
# Test and make sure that setting "format-string" settings obeys quotes
# if they are provided
self.runCmd("settings set thread-format 'abc def' ")
self.expect("settings show thread-format",
'thread-format (format-string) = "abc def"')
self.runCmd('settings set thread-format "abc def" ')
self.expect("settings show thread-format",
'thread-format (format-string) = "abc def"')
# Make sure when no quotes are provided that we maintain any trailing
# spaces
self.runCmd('settings set thread-format abc def ')
self.expect("settings show thread-format",
'thread-format (format-string) = "abc def "')
self.runCmd('settings clear thread-format')
def test_settings_with_trailing_whitespace(self):
# boolean
# Set to known value
self.runCmd("settings set target.skip-prologue true")
# Set to new value with trailing whitespace
self.runCmd("settings set target.skip-prologue false ")
# Make sure the setting was correctly set to "false"
self.expect(
"settings show target.skip-prologue",
SETTING_MSG("target.skip-prologue"),
startstr="target.skip-prologue (boolean) = false")
self.runCmd("settings clear target.skip-prologue", check=False)
# integer
self.runCmd("settings set term-width 70") # Set to known value
# Set to new value with trailing whitespaces
self.runCmd("settings set term-width 60 \t")
self.expect("settings show term-width", SETTING_MSG("term-width"),
startstr="term-width (int) = 60")
self.runCmd("settings clear term-width", check=False)
# string
self.runCmd("settings set target.arg0 abc") # Set to known value
# Set to new value with trailing whitespaces
self.runCmd("settings set target.arg0 cde\t ")
self.expect("settings show target.arg0", SETTING_MSG("target.arg0"),
startstr='target.arg0 (string) = "cde"')
self.runCmd("settings clear target.arg0", check=False)
# file
path1 = self.getBuildArtifact("path1.txt")
path2 = self.getBuildArtifact("path2.txt")
self.runCmd(
"settings set target.output-path %s" %
path1) # Set to known value
self.expect(
"settings show target.output-path",
SETTING_MSG("target.output-path"),
startstr='target.output-path (file) = ',
substrs=[path1])
self.runCmd("settings set target.output-path %s " %
path2) # Set to new value with trailing whitespaces
self.expect(
"settings show target.output-path",
SETTING_MSG("target.output-path"),
startstr='target.output-path (file) = ',
substrs=[path2])
self.runCmd("settings clear target.output-path", check=False)
# enum
# Set to known value
self.runCmd("settings set stop-disassembly-display never")
# Set to new value with trailing whitespaces
self.runCmd("settings set stop-disassembly-display always ")
self.expect(
"settings show stop-disassembly-display",
SETTING_MSG("stop-disassembly-display"),
startstr='stop-disassembly-display (enum) = always')
self.runCmd("settings clear stop-disassembly-display", check=False)
# language
# Set to known value
self.runCmd("settings set target.language c89")
# Set to new value with trailing whitespace
self.runCmd("settings set target.language c11 ")
self.expect(
"settings show target.language",
SETTING_MSG("target.language"),
startstr="target.language (language) = c11")
self.runCmd("settings clear target.language", check=False)
# arguments
self.runCmd("settings set target.run-args 1 2 3") # Set to known value
# Set to new value with trailing whitespaces
self.runCmd("settings set target.run-args 3 4 5 ")
self.expect(
"settings show target.run-args",
SETTING_MSG("target.run-args"),
substrs=[
'target.run-args (arguments) =',
'[0]: "3"',
'[1]: "4"',
'[2]: "5"'])
self.runCmd("settings set target.run-args 1 2 3") # Set to known value
# Set to new value with trailing whitespaces
self.runCmd("settings set target.run-args 3 \ \ ")
self.expect(
"settings show target.run-args",
SETTING_MSG("target.run-args"),
substrs=[
'target.run-args (arguments) =',
'[0]: "3"',
'[1]: " "',
'[2]: " "'])
self.runCmd("settings clear target.run-args", check=False)
# dictionaries
self.runCmd("settings clear target.env-vars") # Set to known value
# Set to new value with trailing whitespaces
self.runCmd("settings set target.env-vars A=B C=D\t ")
self.expect(
"settings show target.env-vars",
SETTING_MSG("target.env-vars"),
substrs=[
'target.env-vars (dictionary of strings) =',
'A=B',
'C=D'])
self.runCmd("settings clear target.env-vars", check=False)
# regex
# Set to known value
self.runCmd("settings clear target.process.thread.step-avoid-regexp")
# Set to new value with trailing whitespaces
self.runCmd(
"settings set target.process.thread.step-avoid-regexp foo\\ ")
self.expect(
"settings show target.process.thread.step-avoid-regexp",
SETTING_MSG("target.process.thread.step-avoid-regexp"),
substrs=['target.process.thread.step-avoid-regexp (regex) = foo\\ '])
self.runCmd(
"settings clear target.process.thread.step-avoid-regexp",
check=False)
# format-string
self.runCmd("settings clear disassembly-format") # Set to known value
# Set to new value with trailing whitespaces
self.runCmd("settings set disassembly-format foo ")
self.expect("settings show disassembly-format",
SETTING_MSG("disassembly-format"),
substrs=['disassembly-format (format-string) = "foo "'])
self.runCmd("settings clear disassembly-format", check=False)
def test_settings_list(self):
# List settings (and optionally test the filter to only show 'target' settings).
self.expect("settings list target", substrs=["language", "arg0", "detach-on-error"])
self.expect("settings list target", matching=False, substrs=["packet-timeout"])
self.expect("settings list", substrs=["language", "arg0", "detach-on-error", "packet-timeout"])
def test_settings_remove_single(self):
# Set some environment variables and use 'remove' to delete them.
self.runCmd("settings set target.env-vars a=b c=d")
self.expect("settings show target.env-vars", substrs=["a=b", "c=d"])
self.runCmd("settings remove target.env-vars a")
self.expect("settings show target.env-vars", matching=False, substrs=["a=b"])
self.expect("settings show target.env-vars", substrs=["c=d"])
self.runCmd("settings remove target.env-vars c")
self.expect("settings show target.env-vars", matching=False, substrs=["a=b", "c=d"])
def test_settings_remove_multiple(self):
self.runCmd("settings set target.env-vars a=b c=d e=f")
self.expect("settings show target.env-vars", substrs=["a=b", "c=d", "e=f"])
self.runCmd("settings remove target.env-vars a e")
self.expect("settings show target.env-vars", matching=False, substrs=["a=b", "e=f"])
self.expect("settings show target.env-vars", substrs=["c=d"])
def test_settings_remove_nonexistent_value(self):
self.expect("settings remove target.env-vars doesntexist", error=True,
substrs=["no value found named 'doesntexist'"])
def test_settings_remove_nonexistent_settings(self):
self.expect("settings remove doesntexist alsodoesntexist", error=True,
substrs=["error: invalid value path 'doesntexist'"])
def test_settings_remove_missing_arg(self):
self.expect("settings remove", error=True,
substrs=["'settings remove' takes an array or dictionary item, or"])
def test_settings_remove_empty_arg(self):
self.expect("settings remove ''", error=True,
substrs=["'settings remove' command requires a valid variable name"])
def test_all_settings_exist(self):
self.expect("settings show",
substrs=["auto-confirm",
"frame-format",
"notify-void",
"prompt",
"script-lang",
"stop-disassembly-count",
"stop-disassembly-display",
"stop-line-count-after",
"stop-line-count-before",
"stop-show-column",
"term-width",
"thread-format",
"use-external-editor",
"target.default-arch",
"target.move-to-nearest-code",
"target.expr-prefix",
"target.language",
"target.prefer-dynamic-value",
"target.enable-synthetic-value",
"target.skip-prologue",
"target.source-map",
"target.exec-search-paths",
"target.max-children-count",
"target.max-string-summary-length",
"target.breakpoints-use-platform-avoid-list",
"target.run-args",
"target.env-vars",
"target.inherit-env",
"target.input-path",
"target.output-path",
"target.error-path",
"target.disable-aslr",
"target.disable-stdio",
"target.x86-disassembly-flavor",
"target.use-hex-immediates",
"target.hex-immediate-style",
"target.process.disable-memory-cache",
"target.process.extra-startup-command",
"target.process.thread.step-avoid-regexp",
"target.process.thread.trace-thread"])
# settings under an ".experimental" domain should have two properties:
# 1. If the name does not exist with "experimental" in the name path,
# the name lookup should try to find it without "experimental". So
# a previously-experimental setting that has been promoted to a
# "real" setting will still be set by the original name.
# 2. Changing a setting with .experimental., name, where the setting
# does not exist either with ".experimental." or without, should
# not generate an error. So if an experimental setting is removed,
# people who may have that in their ~/.lldbinit files should not see
# any errors.
def test_experimental_settings(self):
cmdinterp = self.dbg.GetCommandInterpreter()
result = lldb.SBCommandReturnObject()
# Set target.arg0 to a known value, check that we can retrieve it via
# the actual name and via .experimental.
self.expect('settings set target.arg0 first-value')
self.expect('settings show target.arg0', substrs=['first-value'])
self.expect('settings show target.experimental.arg0', substrs=['first-value'], error=False)
# Set target.arg0 to a new value via a target.experimental.arg0 name,
# verify that we can read it back via both .experimental., and not.
self.expect('settings set target.experimental.arg0 second-value', error=False)
self.expect('settings show target.arg0', substrs=['second-value'])
self.expect('settings show target.experimental.arg0', substrs=['second-value'], error=False)
# showing & setting an undefined .experimental. setting should generate no errors.
self.expect('settings show target.experimental.setting-which-does-not-exist', patterns=['^\s$'], error=False)
self.expect('settings set target.experimental.setting-which-does-not-exist true', error=False)
# A domain component before .experimental. which does not exist should give an error
# But the code does not yet do that.
# self.expect('settings set target.setting-which-does-not-exist.experimental.arg0 true', error=True)
# finally, confirm that trying to set a setting that does not exist still fails.
# (SHOWING a setting that does not exist does not currently yield an error.)
self.expect('settings set target.setting-which-does-not-exist true', error=True)
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