vendor/lldb/lldb-trunk-r256945

6 files changed, 685 insertions, 0 deletions

diff --git a/packages/Python/lldbsuite/test/settings/Makefile b/packages/Python/lldbsuite/test/settings/Makefile
new file mode 100644
index 000000000000..d4bc9c689043
--- /dev/null
+++ b/packages/Python/lldbsuite/test/settings/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../make
+
+CXX_SOURCES := main.cpp
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/settings/TestSettings.py b/packages/Python/lldbsuite/test/settings/TestSettings.py
new file mode 100644
index 000000000000..1d1912495551
--- /dev/null
+++ b/packages/Python/lldbsuite/test/settings/TestSettings.py
@@ -0,0 +1,495 @@
+"""
+Test lldb settings command.
+"""
+
+from __future__ import print_function
+
+
+
+import os, time, re
+import lldb
+from lldbsuite.test.lldbtest import *
+
+class SettingsCommandTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @classmethod
+    def classCleanup(cls):
+        """Cleanup the test byproducts."""
+        cls.RemoveTempFile("output1.txt")
+        cls.RemoveTempFile("output2.txt")
+        cls.RemoveTempFile("stderr.txt")
+        cls.RemoveTempFile("stdout.txt")
+
+    @no_debug_info_test
+    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"])
+
+    @no_debug_info_test
+    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'])
+
+    @no_debug_info_test
+    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"'])
+
+    @no_debug_info_test
+    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"'])
+
+    @no_debug_info_test
+    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")
+
+    @no_debug_info_test
+    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 = os.path.join(os.getcwd(), "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("run")
+        self.expect("thread backtrace",
+            substrs = ["`main", os.getcwd()])
+
+    def test_set_auto_confirm(self):
+        """Test that after 'set auto-confirm true', manual confirmation should not kick in."""
+        self.build()
+
+        exe = os.path.join(os.getcwd(), "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")
+
+    @skipUnlessArch(['x86_64', 'i386', 'i686'])
+    def test_disassembler_settings(self):
+        """Test that user options for the disassembler take effect."""
+        self.build()
+
+        exe = os.path.join(os.getcwd(), "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"])
+
+    @expectedFailureWindows("llvm.org/pr24579")
+    def test_run_args_and_env_vars(self):
+        """Test that run-args and env-vars are passed to the launched process."""
+        self.build()
+        exe = os.path.join(os.getcwd(), "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("run", RUN_SUCCEEDED)
+
+        # Read the output file produced by running the program.
+        if lldb.remote_platform:
+            self.runCmd('platform get-file "output2.txt" "output2.txt"')
+        with open('output2.txt', 'r') as f:
+            output = f.read()
+
+        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 = os.path.join(os.getcwd(), "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("run", RUN_SUCCEEDED)
+
+        # Read the output file produced by running the program.
+        if lldb.remote_platform:
+            self.runCmd('platform get-file "output1.txt" "output1.txt"')
+        with open('output1.txt', 'r') as f:
+            output = f.read()
+
+        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."])
+
+    def test_set_error_output_path(self):
+        """Test that setting target.error/output-path for the launched process works."""
+        self.build()
+
+        exe = os.path.join(os.getcwd(), "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 stderr.txt")
+        self.runCmd("settings set target.output-path 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("run", RUN_SUCCEEDED)
+
+        if lldb.remote_platform:
+            self.runCmd('platform get-file "stderr.txt" "stderr.txt"')
+            self.runCmd('platform get-file "stdout.txt" "stdout.txt"')
+
+
+        # The 'stderr.txt' file should now exist.
+        self.assertTrue(os.path.isfile("stderr.txt"),
+                        "'stderr.txt' exists due to target.error-path.")
+
+        # Read the output file produced by running the program.
+        with open('stderr.txt', 'r') as f:
+            output = f.read()
+
+        self.expect(output, exe=False,
+            startstr = "This message should go to standard error.")
+
+        # The 'stdout.txt' file should now exist.
+        self.assertTrue(os.path.isfile("stdout.txt"),
+                        "'stdout.txt' exists due to target.output-path.")
+
+        # Read the output file produced by running the program.
+        with open('stdout.txt', 'r') as f:
+            output = f.read()
+
+        self.expect(output, exe=False,
+            startstr = "This message should go to standard out.")
+
+    @no_debug_info_test
+    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")
+
+    @no_debug_info_test
+    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")
+
+    @no_debug_info_test
+    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')
+
+    @no_debug_info_test
+    def test_settings_with_trailing_whitespace (self):
+        
+        # boolean
+        self.runCmd ("settings set target.skip-prologue true")      # Set to known value
+        self.runCmd ("settings set target.skip-prologue false ")    # Set to new value with trailing whitespace
+        # 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
+        self.runCmd ("settings set term-width 60 \t")   # Set to new value with trailing whitespaces
+        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
+        self.runCmd ("settings set target.arg0 cde\t ") # Set to new value with trailing whitespaces
+        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 = os.path.join(os.getcwd(), "path1.txt")
+        path2 = os.path.join(os.getcwd(), "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
+        self.runCmd ("settings set stop-disassembly-display never")   # Set to known value
+        self.runCmd ("settings set stop-disassembly-display always ") # Set to new value with trailing whitespaces
+        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
+        self.runCmd ("settings set target.language c89")      # Set to known value
+        self.runCmd ("settings set target.language go ")      # Set to new value with trailing whitespace
+        self.expect ("settings show target.language", SETTING_MSG("target.language"),
+            startstr = "target.language (language) = go")
+        self.runCmd("settings clear target.language", check=False)
+        # arguments
+        self.runCmd ("settings set target.run-args 1 2 3")  # Set to known value
+        self.runCmd ("settings set target.run-args 3 4 5 ") # Set to new value with trailing whitespaces
+        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
+        self.runCmd ("settings set target.run-args 3 \  \ ") # Set to new value with trailing whitespaces
+        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
+        self.runCmd ("settings set target.env-vars A=B C=D\t ") # Set to new value with trailing whitespaces
+        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
+        self.runCmd ("settings clear target.process.thread.step-avoid-regexp")  # Set to known value
+        self.runCmd ("settings set target.process.thread.step-avoid-regexp foo\\ ") # Set to new value with trailing whitespaces
+        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
+        self.runCmd ("settings set disassembly-format foo ") # Set to new value with trailing whitespaces
+        self.expect ("settings show disassembly-format",
+                SETTING_MSG("disassembly-format"),
+                substrs = [ 'disassembly-format (format-string) = "foo "'])
+        self.runCmd("settings clear disassembly-format", check=False)
+
+    @no_debug_info_test
+    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",
+                                 "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"])
diff --git a/packages/Python/lldbsuite/test/settings/main.cpp b/packages/Python/lldbsuite/test/settings/main.cpp
new file mode 100644
index 000000000000..cf2b16b0089b
--- /dev/null
+++ b/packages/Python/lldbsuite/test/settings/main.cpp
@@ -0,0 +1,75 @@
+//===-- main.cpp ------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include <cstdlib>
+#include <string>
+#include <fstream>
+#include <iostream>
+
+int numberfn()
+{
+    return 0x5a;
+}
+
+int
+main(int argc, char const *argv[])
+{
+    // The program writes its output to the following file:
+    //
+    //     o "output1.txt" for test_pass_host_env_vars() test case
+    //     o "output2.txt" for test_run_args_and_env_vars_with_dsym() test case
+    //     o "output2.txt" for test_run_args_and_env_vars_with_dwarf() test case
+    std::ofstream outfile;
+    if (argc == 1)
+        outfile.open("output1.txt");
+    else
+        outfile.open("output2.txt");
+
+    for (unsigned i = 0; i < argc; ++i) {
+        std::string theArg(argv[i]);
+        if (i == 1 && "A" == theArg)
+            outfile << "argv[1] matches\n";
+
+        if (i == 2 && "B" == theArg)
+            outfile << "argv[2] matches\n";
+
+        if (i == 3 && "C" == theArg)
+            outfile << "argv[3] matches\n";
+    }
+
+    // For passing environment vars from the debugger to the launched process.
+    if (::getenv("MY_ENV_VAR")) {
+        std::string MY_ENV_VAR(getenv("MY_ENV_VAR"));
+        if ("YES" == MY_ENV_VAR) {
+            outfile << "Environment variable 'MY_ENV_VAR' successfully passed.\n";
+        }
+    }
+
+
+    // For passing host environment vars to the launched process.
+    if (::getenv("MY_HOST_ENV_VAR1")) {
+        std::string MY_HOST_ENV_VAR1(getenv("MY_HOST_ENV_VAR1"));
+        if ("VAR1" == MY_HOST_ENV_VAR1) {
+            outfile << "The host environment variable 'MY_HOST_ENV_VAR1' successfully passed.\n";
+        }
+    }
+
+    if (::getenv("MY_HOST_ENV_VAR2")) {
+        std::string MY_HOST_ENV_VAR2(getenv("MY_HOST_ENV_VAR2"));
+        if ("VAR2" == MY_HOST_ENV_VAR2) {
+            outfile << "The host environment variable 'MY_HOST_ENV_VAR2' successfully passed.\n";
+        }
+    }
+
+    std::cerr << "This message should go to standard error.\n";
+    std::cout << "This message should go to standard out.\n";
+
+    outfile.close();
+    return numberfn();
+}
diff --git a/packages/Python/lldbsuite/test/settings/quoting/Makefile b/packages/Python/lldbsuite/test/settings/quoting/Makefile
new file mode 100644
index 000000000000..0d70f2595019
--- /dev/null
+++ b/packages/Python/lldbsuite/test/settings/quoting/Makefile
@@ -0,0 +1,5 @@
+LEVEL = ../../make
+
+C_SOURCES := main.c
+
+include $(LEVEL)/Makefile.rules
diff --git a/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py b/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py
new file mode 100644
index 000000000000..878fc8a50675
--- /dev/null
+++ b/packages/Python/lldbsuite/test/settings/quoting/TestQuoting.py
@@ -0,0 +1,92 @@
+"""
+Test quoting of arguments to lldb commands
+"""
+
+from __future__ import print_function
+
+
+
+import os, time, re
+import lldb
+from lldbsuite.test.lldbtest import *
+
+class SettingsCommandTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @classmethod
+    def classCleanup(cls):
+        """Cleanup the test byproducts."""
+        cls.RemoveTempFile("stdout.txt")
+
+    @no_debug_info_test
+    def test_no_quote(self):
+        self.do_test_args("a b c", "a\0b\0c\0")
+
+    @expectedFailureWindows("http://llvm.org/pr24557")
+    @no_debug_info_test
+    def test_single_quote(self):
+        self.do_test_args("'a b c'", "a b c\0")
+
+    @no_debug_info_test
+    def test_double_quote(self):
+        self.do_test_args('"a b c"', "a b c\0")
+
+    @expectedFailureWindows("http://llvm.org/pr24557")
+    @no_debug_info_test
+    def test_single_quote_escape(self):
+        self.do_test_args("'a b\\' c", "a b\\\0c\0")
+
+    @expectedFailureWindows("http://llvm.org/pr24557")
+    @no_debug_info_test
+    def test_double_quote_escape(self):
+        self.do_test_args('"a b\\" c"', 'a b" c\0')
+
+    @expectedFailureWindows("http://llvm.org/pr24557")
+    @no_debug_info_test
+    def test_double_quote_escape2(self):
+        self.do_test_args('"a b\\\\" c', 'a b\\\0c\0')
+
+    @no_debug_info_test
+    def test_single_in_double(self):
+        self.do_test_args('"a\'b"', "a'b\0")
+
+    @expectedFailureWindows("http://llvm.org/pr24557")
+    @no_debug_info_test
+    def test_double_in_single(self):
+        self.do_test_args("'a\"b'", 'a"b\0')
+
+    @no_debug_info_test
+    def test_combined(self):
+        self.do_test_args('"a b"c\'d e\'', 'a bcd e\0')
+
+    @no_debug_info_test
+    def test_bare_single(self):
+        self.do_test_args("a\\'b", "a'b\0")
+
+    @expectedFailureWindows("http://llvm.org/pr24557")
+    @no_debug_info_test
+    def test_bare_double(self):
+        self.do_test_args('a\\"b', 'a"b\0')
+
+    def do_test_args(self, args_in, args_out):
+        """Test argument parsing. Run the program with args_in. The program dumps its arguments
+        to stdout. Compare the stdout with args_out."""
+        self.buildDefault()
+
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
+
+        self.runCmd("process launch -o stdout.txt -- " + args_in)
+
+        if lldb.remote_platform:
+            src_file_spec = lldb.SBFileSpec('stdout.txt', False)
+            dst_file_spec = lldb.SBFileSpec('stdout.txt', True)
+            lldb.remote_platform.Get(src_file_spec, dst_file_spec)
+
+        with open('stdout.txt', 'r') as f:
+            output = f.read()
+
+        self.RemoveTempFile("stdout.txt")
+
+        self.assertEqual(output, args_out)
diff --git a/packages/Python/lldbsuite/test/settings/quoting/main.c b/packages/Python/lldbsuite/test/settings/quoting/main.c
new file mode 100644
index 000000000000..6e01c2d1cd87
--- /dev/null
+++ b/packages/Python/lldbsuite/test/settings/quoting/main.c
@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <string.h>
+
+/* This program writes its arguments (separated by '\0') to stdout. */
+int
+main(int argc, char const *argv[])
+{
+    int i;
+    for (i = 1; i < argc; ++i)
+        fwrite(argv[i], strlen(argv[i])+1, 1, stdout);
+
+    return 0;
+}