Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/basic/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+CFLAGS_EXTRAS := -fsanitize=thread -g
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/basic/TestTsanBasic.py

@@ -0,0 +1,136 @@
+"""
+Tests basic ThreadSanitizer support (detecting a data race).
+"""
+
+import os
+import time
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbutil as lldbutil
+import json
+
+
+class TsanBasicTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["linux"],
+        bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
+    @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
+    @skipIfRemote
+    @skipUnlessThreadSanitizer
+    def test(self):
+        self.build()
+        self.tsan_tests()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+        self.line_malloc = line_number('main.c', '// malloc line')
+        self.line_thread1 = line_number('main.c', '// thread1 line')
+        self.line_thread2 = line_number('main.c', '// thread2 line')
+
+    def tsan_tests(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.expect(
+            "file " + exe,
+            patterns=["Current executable set to .*a.out"])
+
+        self.runCmd("run")
+
+        stop_reason = self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
+        if stop_reason == lldb.eStopReasonExec:
+            # On OS X 10.10 and older, we need to re-exec to enable
+            # interceptors.
+            self.runCmd("continue")
+
+        # the stop reason of the thread should be breakpoint.
+        self.expect("thread list", "A data race should be detected",
+                    substrs=['stopped', 'stop reason = Data race detected'])
+
+        self.assertEqual(
+            self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(),
+            lldb.eStopReasonInstrumentation)
+
+        # test that the TSan dylib is present
+        self.expect(
+            "image lookup -n __tsan_get_current_report",
+            "__tsan_get_current_report should be present",
+            substrs=['1 match found'])
+
+        # We should be stopped in __tsan_on_report
+        process = self.dbg.GetSelectedTarget().process
+        thread = process.GetSelectedThread()
+        frame = thread.GetSelectedFrame()
+        self.assertTrue("__tsan_on_report" in frame.GetFunctionName())
+
+        # The stopped thread backtrace should contain either line1 or line2
+        # from main.c.
+        found = False
+        for i in range(0, thread.GetNumFrames()):
+            frame = thread.GetFrameAtIndex(i)
+            if frame.GetLineEntry().GetFileSpec().GetFilename() == "main.c":
+                if frame.GetLineEntry().GetLine() == self.line_thread1:
+                    found = True
+                if frame.GetLineEntry().GetLine() == self.line_thread2:
+                    found = True
+        self.assertTrue(found)
+
+        self.expect(
+            "thread info -s",
+            "The extended stop info should contain the TSan provided fields",
+            substrs=[
+                "instrumentation_class",
+                "description",
+                "mops"])
+
+        output_lines = self.res.GetOutput().split('\n')
+        json_line = '\n'.join(output_lines[2:])
+        data = json.loads(json_line)
+        self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")
+        self.assertEqual(data["issue_type"], "data-race")
+        self.assertEqual(len(data["mops"]), 2)
+
+        backtraces = thread.GetStopReasonExtendedBacktraces(
+            lldb.eInstrumentationRuntimeTypeAddressSanitizer)
+        self.assertEqual(backtraces.GetSize(), 0)
+
+        backtraces = thread.GetStopReasonExtendedBacktraces(
+            lldb.eInstrumentationRuntimeTypeThreadSanitizer)
+        self.assertTrue(backtraces.GetSize() >= 2)
+
+        # First backtrace is a memory operation
+        thread = backtraces.GetThreadAtIndex(0)
+        found = False
+        for i in range(0, thread.GetNumFrames()):
+            frame = thread.GetFrameAtIndex(i)
+            if frame.GetLineEntry().GetFileSpec().GetFilename() == "main.c":
+                if frame.GetLineEntry().GetLine() == self.line_thread1:
+                    found = True
+                if frame.GetLineEntry().GetLine() == self.line_thread2:
+                    found = True
+        self.assertTrue(found)
+
+        # Second backtrace is a memory operation
+        thread = backtraces.GetThreadAtIndex(1)
+        found = False
+        for i in range(0, thread.GetNumFrames()):
+            frame = thread.GetFrameAtIndex(i)
+            if frame.GetLineEntry().GetFileSpec().GetFilename() == "main.c":
+                if frame.GetLineEntry().GetLine() == self.line_thread1:
+                    found = True
+                if frame.GetLineEntry().GetLine() == self.line_thread2:
+                    found = True
+        self.assertTrue(found)
+
+        self.runCmd("continue")
+
+        # the stop reason of the thread should be a SIGABRT.
+        self.expect("thread list", "We should be stopped due a SIGABRT",
+                    substrs=['stopped', 'stop reason = signal SIGABRT'])
+
+        # test that we're in pthread_kill now (TSan abort the process)
+        self.expect("thread list", "We should be stopped in pthread_kill",
+                    substrs=['pthread_kill'])

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/basic/main.c

@@ -0,0 +1,37 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+char *pointer;
+
+void *f1(void *p) {
+    pointer[0] = 'x'; // thread1 line
+    return NULL;
+}
+
+void *f2(void *p) {
+    pointer[0] = 'y'; // thread2 line
+    return NULL;
+}
+
+int main (int argc, char const *argv[])
+{
+    pointer = (char *)malloc(10); // malloc line
+
+    pthread_t t1, t2;
+    pthread_create(&t1, NULL, f1, NULL);
+    pthread_create(&t2, NULL, f2, NULL);
+
+    pthread_join(t1, NULL);
+    pthread_join(t2, NULL);
+
+    return 0;
+}

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/cpp_global_location/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+CXX_SOURCES := main.cpp
+CFLAGS_EXTRAS := -fsanitize=thread -g
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/cpp_global_location/TestTsanCPPGlobalLocation.py

@@ -0,0 +1,69 @@
+"""
+Tests that TSan correctly reports the filename and line number of a racy global C++ variable.
+"""
+
+import os
+import time
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbutil as lldbutil
+import json
+
+
+class TsanCPPGlobalLocationTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["linux"],
+        bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
+    @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
+    @skipIfRemote
+    @skipUnlessThreadSanitizer
+    def test(self):
+        self.build()
+        self.tsan_tests()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def tsan_tests(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.expect(
+            "file " + exe,
+            patterns=["Current executable set to .*a.out"])
+
+        self.runCmd("run")
+
+        stop_reason = self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
+        if stop_reason == lldb.eStopReasonExec:
+            # On OS X 10.10 and older, we need to re-exec to enable
+            # interceptors.
+            self.runCmd("continue")
+
+        # the stop reason of the thread should be breakpoint.
+        self.expect("thread list", "A data race should be detected",
+                    substrs=['stopped', 'stop reason = Data race detected'])
+
+        self.expect(
+            "thread info -s",
+            "The extended stop info should contain the TSan provided fields",
+            substrs=[
+                "instrumentation_class",
+                "description",
+                "mops"])
+
+        output_lines = self.res.GetOutput().split('\n')
+        json_line = '\n'.join(output_lines[2:])
+        data = json.loads(json_line)
+        self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")
+        self.assertEqual(data["issue_type"], "data-race")
+
+        self.assertTrue(data["location_filename"].endswith("/main.cpp"))
+        self.assertEqual(
+            data["location_line"],
+            line_number(
+                'main.cpp',
+                '// global variable'))

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/cpp_global_location/main.cpp

@@ -0,0 +1,38 @@
+//===-- 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 <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+long my_global_variable;  // global variable
+
+void *f1(void *p) {
+    my_global_variable = 42;
+    return NULL;
+}
+
+void *f2(void *p) {
+    my_global_variable = 43;
+    return NULL;
+}
+
+int main (int argc, char const *argv[])
+{
+    pthread_t t1;
+    pthread_create(&t1, NULL, f1, NULL);
+
+    pthread_t t2;
+    pthread_create(&t2, NULL, f2, NULL);
+
+    pthread_join(t1, NULL);
+    pthread_join(t2, NULL);
+
+    return 0;
+}

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/global_location/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+CFLAGS_EXTRAS := -fsanitize=thread -g
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/global_location/TestTsanGlobalLocation.py

@@ -0,0 +1,69 @@
+"""
+Tests that TSan correctly reports the filename and line number of a racy global variable.
+"""
+
+import os
+import time
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbutil as lldbutil
+import json
+
+
+class TsanGlobalLocationTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["linux"],
+        bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
+    @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
+    @skipIfRemote
+    @skipUnlessThreadSanitizer
+    def test(self):
+        self.build()
+        self.tsan_tests()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def tsan_tests(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.expect(
+            "file " + exe,
+            patterns=["Current executable set to .*a.out"])
+
+        self.runCmd("run")
+
+        stop_reason = self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
+        if stop_reason == lldb.eStopReasonExec:
+            # On OS X 10.10 and older, we need to re-exec to enable
+            # interceptors.
+            self.runCmd("continue")
+
+        # the stop reason of the thread should be breakpoint.
+        self.expect("thread list", "A data race should be detected",
+                    substrs=['stopped', 'stop reason = Data race detected'])
+
+        self.expect(
+            "thread info -s",
+            "The extended stop info should contain the TSan provided fields",
+            substrs=[
+                "instrumentation_class",
+                "description",
+                "mops"])
+
+        output_lines = self.res.GetOutput().split('\n')
+        json_line = '\n'.join(output_lines[2:])
+        data = json.loads(json_line)
+        self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")
+        self.assertEqual(data["issue_type"], "data-race")
+
+        self.assertTrue(data["location_filename"].endswith("/main.c"))
+        self.assertEqual(
+            data["location_line"],
+            line_number(
+                'main.c',
+                '// global variable'))

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/global_location/main.c

@@ -0,0 +1,38 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+long my_global_variable;  // global variable
+
+void *f1(void *p) {
+    my_global_variable = 42;
+    return NULL;
+}
+
+void *f2(void *p) {
+    my_global_variable = 43;
+    return NULL;
+}
+
+int main (int argc, char const *argv[])
+{
+    pthread_t t1;
+    pthread_create(&t1, NULL, f1, NULL);
+
+    pthread_t t2;
+    pthread_create(&t2, NULL, f2, NULL);
+
+    pthread_join(t1, NULL);
+    pthread_join(t2, NULL);
+
+    return 0;
+}

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/multiple/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+CFLAGS_EXTRAS := -fsanitize=thread -g
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/multiple/TestTsanMultiple.py

@@ -0,0 +1,86 @@
+"""
+Test ThreadSanitizer when multiple different issues are found.
+"""
+
+import os
+import time
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbutil as lldbutil
+import json
+
+
+class TsanMultipleTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["linux"],
+        bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
+    @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
+    @skipIfRemote
+    @skipUnlessThreadSanitizer
+    def test(self):
+        self.build()
+        self.tsan_tests()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def tsan_tests(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.expect(
+            "file " + exe,
+            patterns=["Current executable set to .*a.out"])
+
+        self.runCmd("env TSAN_OPTIONS=abort_on_error=0")
+
+        self.runCmd("run")
+
+        stop_reason = self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
+        if stop_reason == lldb.eStopReasonExec:
+            # On OS X 10.10 and older, we need to re-exec to enable
+            # interceptors.
+            self.runCmd("continue")
+
+        report_count = 0
+        while self.dbg.GetSelectedTarget().process.GetSelectedThread(
+        ).GetStopReason() == lldb.eStopReasonInstrumentation:
+            report_count += 1
+
+            stop_description = self.dbg.GetSelectedTarget(
+            ).process.GetSelectedThread().GetStopDescription(100)
+
+            self.assertTrue(
+                (stop_description == "Data race detected") or
+                (stop_description == "Use of deallocated memory detected") or
+                (stop_description == "Thread leak detected") or
+                (stop_description == "Use of an uninitialized or destroyed mutex detected") or
+                (stop_description == "Unlock of an unlocked mutex (or by a wrong thread) detected")
+            )
+
+            self.expect(
+                "thread info -s",
+                "The extended stop info should contain the TSan provided fields",
+                substrs=[
+                    "instrumentation_class",
+                    "description",
+                    "mops"])
+
+            output_lines = self.res.GetOutput().split('\n')
+            json_line = '\n'.join(output_lines[2:])
+            data = json.loads(json_line)
+            self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")
+
+            backtraces = self.dbg.GetSelectedTarget().process.GetSelectedThread(
+            ).GetStopReasonExtendedBacktraces(lldb.eInstrumentationRuntimeTypeThreadSanitizer)
+            self.assertTrue(backtraces.GetSize() >= 1)
+
+            self.runCmd("continue")
+
+        self.assertEqual(
+            self.dbg.GetSelectedTarget().process.GetState(),
+            lldb.eStateExited,
+            PROCESS_EXITED)

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/multiple/main.m

@@ -0,0 +1,138 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#import <Foundation/Foundation.h>
+#import <pthread.h>
+
+long my_global;
+
+void *Thread1(void *arg) {
+    my_global = 42;
+    return NULL;
+}
+
+void *Thread2(void *arg) {
+    my_global = 144;
+    return NULL;
+}
+
+void TestDataRace1() {
+    pthread_t t1, t2;
+    pthread_create(&t1, NULL, Thread1, NULL);
+    pthread_create(&t2, NULL, Thread2, NULL);
+    
+    pthread_join(t1, NULL);
+    pthread_join(t2, NULL);
+}
+
+void TestInvalidMutex() {
+    pthread_mutex_t m = {0};
+    pthread_mutex_lock(&m);
+    
+    pthread_mutex_init(&m, NULL);
+    pthread_mutex_lock(&m);
+    pthread_mutex_unlock(&m);
+    pthread_mutex_destroy(&m);
+    pthread_mutex_lock(&m);
+}
+
+void TestMutexWrongLock() {
+    pthread_mutex_t m = {0};
+    pthread_mutex_init(&m, NULL);
+    pthread_mutex_unlock(&m);
+}
+
+long some_global;
+
+void TestDataRaceBlocks1() {
+    dispatch_queue_t q = dispatch_queue_create("my.queue", DISPATCH_QUEUE_CONCURRENT);
+    
+    for (int i = 0; i < 2; i++) {
+        dispatch_async(q, ^{
+            some_global++;  // race 1
+            
+            usleep(100000);  // force the blocks to be on different threads
+        });
+    }
+    
+    usleep(100000);
+    dispatch_barrier_sync(q, ^{ });
+}
+
+void TestDataRaceBlocks2() {
+    dispatch_queue_t q = dispatch_queue_create("my.queue2", DISPATCH_QUEUE_CONCURRENT);
+    
+    char *c;
+    
+    c = malloc((rand() % 1000) + 10);
+    for (int i = 0; i < 2; i++) {
+        dispatch_async(q, ^{
+            c[0] = 'x';  // race 2
+            fprintf(stderr, "tid: %p\n", pthread_self());
+            usleep(100000);  // force the blocks to be on different threads
+        });
+    }
+    dispatch_barrier_sync(q, ^{ });
+    
+    free(c);
+}
+
+void TestUseAfterFree() {
+    char *c;
+    
+    c = malloc((rand() % 1000) + 10);
+    free(c);
+    c[0] = 'x';
+}
+
+void TestRacePipe() {
+    dispatch_queue_t q = dispatch_queue_create("my.queue3", DISPATCH_QUEUE_CONCURRENT);
+    
+    int a[2];
+    pipe(a);
+    int fd = a[0];
+    
+    for (int i = 0; i < 2; i++) {
+        dispatch_async(q, ^{
+            write(fd, "abc", 3);
+            usleep(100000);  // force the blocks to be on different threads
+        });
+        dispatch_async(q, ^{
+            close(fd);
+            usleep(100000);
+        });
+    }
+    
+    dispatch_barrier_sync(q, ^{ });
+}
+
+void TestThreadLeak() {
+    pthread_t t1;
+    pthread_create(&t1, NULL, Thread1, NULL);
+}
+
+int main(int argc, const char * argv[]) {
+    TestDataRace1();
+    
+    TestInvalidMutex();
+    
+    TestMutexWrongLock();
+    
+    TestDataRaceBlocks1();
+    
+    TestDataRaceBlocks2();
+    
+    TestUseAfterFree();
+    
+    TestRacePipe();
+    
+    TestThreadLeak();
+
+    return 0;
+}

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/thread_leak/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+CFLAGS_EXTRAS := -fsanitize=thread -g
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/thread_leak/TestTsanThreadLeak.py

@@ -0,0 +1,48 @@
+"""
+Tests ThreadSanitizer's support to detect a leaked thread.
+"""
+
+import os
+import time
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbutil as lldbutil
+import json
+
+
+class TsanThreadLeakTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["linux"],
+        bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
+    @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
+    @skipIfRemote
+    @skipUnlessThreadSanitizer
+    def test(self):
+        self.build()
+        self.tsan_tests()
+
+    def tsan_tests(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.expect(
+            "file " + exe,
+            patterns=["Current executable set to .*a.out"])
+
+        self.runCmd("run")
+
+        stop_reason = self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
+        if stop_reason == lldb.eStopReasonExec:
+            # On OS X 10.10 and older, we need to re-exec to enable
+            # interceptors.
+            self.runCmd("continue")
+
+        # the stop reason of the thread should be breakpoint.
+        self.expect("thread list", "A thread leak should be detected",
+                    substrs=['stopped', 'stop reason = Thread leak detected'])
+
+        self.assertEqual(
+            self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(),
+            lldb.eStopReasonInstrumentation)

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/thread_leak/main.c

@@ -0,0 +1,24 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void *f1(void *p) {
+    printf("hello\n");
+    return NULL;
+}
+
+int main (int argc, char const *argv[])
+{
+    pthread_t t1;
+    pthread_create(&t1, NULL, f1, NULL);
+
+    return 0;
+}

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/thread_numbers/Makefile

@@ -0,0 +1,6 @@
+LEVEL = ../../../make
+
+C_SOURCES := main.c
+CFLAGS_EXTRAS := -fsanitize=thread -g
+
+include $(LEVEL)/Makefile.rules

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/thread_numbers/TestTsanThreadNumbers.py

@@ -0,0 +1,87 @@
+"""
+Tests that TSan and LLDB have correct thread numbers.
+"""
+
+import os
+import time
+import lldb
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test.decorators import *
+import lldbsuite.test.lldbutil as lldbutil
+import json
+
+
+class TsanThreadNumbersTestCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @expectedFailureAll(
+        oslist=["linux"],
+        bugnumber="non-core functionality, need to reenable and fix later (DES 2014.11.07)")
+    @skipIfFreeBSD  # llvm.org/pr21136 runtimes not yet available by default
+    @skipIfRemote
+    @skipUnlessThreadSanitizer
+    def test(self):
+        self.build()
+        self.tsan_tests()
+
+    def setUp(self):
+        # Call super's setUp().
+        TestBase.setUp(self)
+
+    def tsan_tests(self):
+        exe = os.path.join(os.getcwd(), "a.out")
+        self.expect(
+            "file " + exe,
+            patterns=["Current executable set to .*a.out"])
+
+        self.runCmd("run")
+
+        stop_reason = self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason()
+        if stop_reason == lldb.eStopReasonExec:
+            # On OS X 10.10 and older, we need to re-exec to enable
+            # interceptors.
+            self.runCmd("continue")
+
+        # the stop reason of the thread should be breakpoint.
+        self.expect("thread list", "A data race should be detected",
+                    substrs=['stopped', 'stop reason = Data race detected'])
+
+        self.assertEqual(
+            self.dbg.GetSelectedTarget().process.GetSelectedThread().GetStopReason(),
+            lldb.eStopReasonInstrumentation)
+
+        report_thread_id = self.dbg.GetSelectedTarget(
+        ).process.GetSelectedThread().GetIndexID()
+
+        self.expect(
+            "thread info -s",
+            "The extended stop info should contain the TSan provided fields",
+            substrs=[
+                "instrumentation_class",
+                "description",
+                "mops"])
+
+        output_lines = self.res.GetOutput().split('\n')
+        json_line = '\n'.join(output_lines[2:])
+        data = json.loads(json_line)
+        self.assertEqual(data["instrumentation_class"], "ThreadSanitizer")
+        self.assertEqual(data["issue_type"], "data-race")
+        self.assertEqual(len(data["mops"]), 2)
+
+        self.assertEqual(data["mops"][0]["thread_id"], report_thread_id)
+
+        other_thread_id = data["mops"][1]["thread_id"]
+        self.assertTrue(other_thread_id != report_thread_id)
+        other_thread = self.dbg.GetSelectedTarget(
+        ).process.GetThreadByIndexID(other_thread_id)
+        self.assertTrue(other_thread.IsValid())
+
+        self.runCmd("thread select %d" % other_thread_id)
+
+        self.expect(
+            "thread backtrace",
+            "The other thread should be stopped in f1 or f2",
+            substrs=[
+                "a.out",
+                "main.c"])

external/llvm-project/lldb/packages/Python/lldbsuite/test/functionalities/tsan/thread_numbers/main.c

@@ -0,0 +1,58 @@
+//===-- main.c --------------------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+char *pointer;
+
+void *nothing(void *p) {
+    return NULL;
+}
+
+void *f1(void *p) {
+    pointer[0] = 'x';
+    sleep(100);
+    return NULL;
+}
+
+void *f2(void *p) {
+    pointer[0] = 'y';
+    sleep(100);
+    return NULL;
+}
+
+int main (int argc, char const *argv[])
+{
+    pointer = (char *)malloc(10);
+
+    for (int i = 0; i < 3; i++) {
+        pthread_t t;
+        pthread_create(&t, NULL, nothing, NULL);
+        pthread_join(t, NULL);
+    }
+
+    pthread_t t1;
+    pthread_create(&t1, NULL, f1, NULL);
+
+    for (int i = 0; i < 3; i++) {
+        pthread_t t;
+        pthread_create(&t, NULL, nothing, NULL);
+        pthread_join(t, NULL);
+    }
+
+    pthread_t t2;
+    pthread_create(&t2, NULL, f2, NULL);
+
+    pthread_join(t1, NULL);
+    pthread_join(t2, NULL);
+
+    return 0;
+}