diff --git a/libcutils/include/cutils/trace.h b/libcutils/include/cutils/trace.h
index 17a0070..98ae0d4 100644
--- a/libcutils/include/cutils/trace.h
+++ b/libcutils/include/cutils/trace.h
@@ -209,6 +209,37 @@
 }
 
 /**
+ * Trace the beginning of an asynchronous event. In addition to the name and a
+ * cookie as in ATRACE_ASYNC_BEGIN/ATRACE_ASYNC_END, a track name argument is
+ * provided, which is the name of the row where this async event should be
+ * recorded. The track name, name, and cookie used to begin an event must be
+ * used to end it.
+ */
+#define ATRACE_ASYNC_FOR_TRACK_BEGIN(track_name, name, cookie) \
+    atrace_async_for_track_begin(ATRACE_TAG, track_name, name, cookie)
+static inline void atrace_async_for_track_begin(uint64_t tag, const char* track_name,
+                                                const char* name, int32_t cookie) {
+    if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) {
+        void atrace_async_for_track_begin_body(const char*, const char*, int32_t);
+        atrace_async_for_track_begin_body(track_name, name, cookie);
+    }
+}
+
+/**
+ * Trace the end of an asynchronous event.
+ * This should correspond to a previous ATRACE_ASYNC_FOR_TRACK_BEGIN.
+ */
+#define ATRACE_ASYNC_FOR_TRACK_END(track_name, name, cookie) \
+    atrace_async_for_track_end(ATRACE_TAG, track_name, name, cookie)
+static inline void atrace_async_for_track_end(uint64_t tag, const char* track_name,
+                                              const char* name, int32_t cookie) {
+    if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) {
+        void atrace_async_for_track_end_body(const char*, const char*, int32_t);
+        atrace_async_for_track_end_body(track_name, name, cookie);
+    }
+}
+
+/**
  * Trace an instantaneous context. name is used to identify the context.
  *
  * An "instant" is an event with no defined duration. Visually is displayed like a single marker
@@ -227,17 +258,18 @@
 
 /**
  * Trace an instantaneous context. name is used to identify the context.
- * trackName is the name of the row where the event should be recorded.
+ * track_name is the name of the row where the event should be recorded.
  *
  * An "instant" is an event with no defined duration. Visually is displayed like a single marker
  * in the timeline (rather than a span, in the case of begin/end events).
  */
 #define ATRACE_INSTANT_FOR_TRACK(trackName, name) \
     atrace_instant_for_track(ATRACE_TAG, trackName, name)
-static inline void atrace_instant_for_track(uint64_t tag, const char* trackName, const char* name) {
+static inline void atrace_instant_for_track(uint64_t tag, const char* track_name,
+                                            const char* name) {
     if (CC_UNLIKELY(atrace_is_tag_enabled(tag))) {
         void atrace_instant_for_track_body(const char*, const char*);
-        atrace_instant_for_track_body(trackName, name);
+        atrace_instant_for_track_body(track_name, name);
     }
 }
 
diff --git a/libcutils/trace-container.cpp b/libcutils/trace-container.cpp
index f3fdda4..8901e4a 100644
--- a/libcutils/trace-container.cpp
+++ b/libcutils/trace-container.cpp
@@ -229,6 +229,28 @@
     WRITE_MSG("F|%d|", "|%" PRId32, "", name, cookie);
 }
 
+void atrace_async_for_track_begin_body(const char* track_name, const char* name, int32_t cookie) {
+    if (CC_LIKELY(atrace_use_container_sock)) {
+        WRITE_MSG_IN_CONTAINER("T", "|", "|%d", track_name, name, cookie);
+        return;
+    }
+
+    if (atrace_marker_fd < 0) return;
+
+    WRITE_MSG("T|%d|", "|%" PRId32, track_name, name, cookie);
+}
+
+void atrace_async_for_track_end_body(const char* track_name, const char* name, int32_t cookie) {
+    if (CC_LIKELY(atrace_use_container_sock)) {
+        WRITE_MSG_IN_CONTAINER("U", "|", "|%d", track_name, name, cookie);
+        return;
+    }
+
+    if (atrace_marker_fd < 0) return;
+
+    WRITE_MSG("U|%d|", "|%" PRId32, track_name, name, cookie);
+}
+
 void atrace_instant_body(const char* name) {
     if (CC_LIKELY(atrace_use_container_sock)) {
         WRITE_MSG_IN_CONTAINER("I", "|", "%s", "", name, "");
diff --git a/libcutils/trace-dev.cpp b/libcutils/trace-dev.cpp
index 8bdeac5..eacc8ee 100644
--- a/libcutils/trace-dev.cpp
+++ b/libcutils/trace-dev.cpp
@@ -89,6 +89,14 @@
     WRITE_MSG("F|%d|", "|%" PRId32, "", name, cookie);
 }
 
+void atrace_async_for_track_begin_body(const char* track_name, const char* name, int32_t cookie) {
+    WRITE_MSG("T|%d|", "|%" PRId32, track_name, name, cookie);
+}
+
+void atrace_async_for_track_end_body(const char* track_name, const char* name, int32_t cookie) {
+    WRITE_MSG("U|%d|", "|%" PRId32, track_name, name, cookie);
+}
+
 void atrace_instant_body(const char* name) {
     WRITE_MSG("I|%d|", "%s", "", name, "");
 }
diff --git a/libcutils/trace-dev_test.cpp b/libcutils/trace-dev_test.cpp
index 29a5590..841674a 100644
--- a/libcutils/trace-dev_test.cpp
+++ b/libcutils/trace-dev_test.cpp
@@ -195,6 +195,226 @@
   ASSERT_STREQ(expected.c_str(), actual.c_str());
 }
 
+TEST_F(TraceDevTest, atrace_async_for_track_begin_body_normal) {
+    atrace_async_for_track_begin_body("fake_track", "fake_name", 12345);
+
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    std::string expected = android::base::StringPrintf("T|%d|fake_track|fake_name|12345", getpid());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_begin_body_exact_track_name) {
+    const int name_size = 5;
+    std::string expected = android::base::StringPrintf("T|%d|", getpid());
+    std::string track_name =
+            MakeName(ATRACE_MESSAGE_LENGTH - expected.length() - 1 - name_size - 6);
+    atrace_async_for_track_begin_body(track_name.c_str(), "name", 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    expected += track_name + "|name|12345";
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+
+    // Add a single character and verify name truncation
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    track_name += '*';
+    expected = android::base::StringPrintf("T|%d|", getpid());
+    expected += track_name + "|nam|12345";
+    atrace_async_for_track_begin_body(track_name.c_str(), "name", 12345);
+    EXPECT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_begin_body_truncated_track_name) {
+    std::string expected = android::base::StringPrintf("T|%d|", getpid());
+    std::string track_name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    atrace_async_for_track_begin_body(track_name.c_str(), "name", 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    int expected_len = ATRACE_MESSAGE_LENGTH - expected.length() - 9;
+    expected += android::base::StringPrintf("%.*s|n|12345", expected_len, track_name.c_str());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_begin_body_exact_name) {
+    const int track_name_size = 11;
+    std::string expected = android::base::StringPrintf("T|%d|", getpid());
+    std::string name =
+            MakeName(ATRACE_MESSAGE_LENGTH - expected.length() - 1 - track_name_size - 6);
+    atrace_async_for_track_begin_body("track_name", name.c_str(), 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    expected += "track_name|" + name + "|12345";
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+
+    // Add a single character and verify we get the same value as before.
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    name += '*';
+    atrace_async_for_track_begin_body("track_name", name.c_str(), 12345);
+    EXPECT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_begin_body_truncated_name) {
+    std::string expected = android::base::StringPrintf("T|%d|track_name|", getpid());
+    std::string name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    atrace_async_for_track_begin_body("track_name", name.c_str(), 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    int expected_len = ATRACE_MESSAGE_LENGTH - expected.length() - 1 - 6;
+    expected += android::base::StringPrintf("%.*s|12345", expected_len, name.c_str());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_begin_body_truncated_both) {
+    std::string expected = android::base::StringPrintf("T|%d|", getpid());
+    std::string name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    std::string track_name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    atrace_async_for_track_begin_body(track_name.c_str(), name.c_str(), 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    int expected_len = ATRACE_MESSAGE_LENGTH - expected.length() - 3 - 6;
+    expected += android::base::StringPrintf("%.*s|%.1s|12345", expected_len, track_name.c_str(),
+                                            name.c_str());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_end_body_normal) {
+    atrace_async_for_track_end_body("fake_track", "fake_name", 12345);
+
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    std::string expected = android::base::StringPrintf("U|%d|fake_track|fake_name|12345", getpid());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_end_body_exact_track_name) {
+    const int name_size = 5;
+    std::string expected = android::base::StringPrintf("U|%d|", getpid());
+    std::string track_name =
+            MakeName(ATRACE_MESSAGE_LENGTH - expected.length() - 1 - name_size - 6);
+    atrace_async_for_track_end_body(track_name.c_str(), "name", 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    expected += track_name + "|name|12345";
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+
+    // Add a single character and verify name truncation
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    track_name += '*';
+    expected = android::base::StringPrintf("U|%d|", getpid());
+    expected += track_name + "|nam|12345";
+    atrace_async_for_track_end_body(track_name.c_str(), "name", 12345);
+    EXPECT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_end_body_truncated_track_name) {
+    std::string expected = android::base::StringPrintf("U|%d|", getpid());
+    std::string track_name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    atrace_async_for_track_end_body(track_name.c_str(), "name", 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    int expected_len = ATRACE_MESSAGE_LENGTH - expected.length() - 9;
+    expected += android::base::StringPrintf("%.*s|n|12345", expected_len, track_name.c_str());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_end_body_exact_name) {
+    const int track_name_size = 11;
+    std::string expected = android::base::StringPrintf("U|%d|", getpid());
+    std::string name =
+            MakeName(ATRACE_MESSAGE_LENGTH - expected.length() - 1 - track_name_size - 6);
+    atrace_async_for_track_end_body("track_name", name.c_str(), 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    expected += "track_name|" + name + "|12345";
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+
+    // Add a single character and verify we get the same value as before.
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    name += '*';
+    atrace_async_for_track_end_body("track_name", name.c_str(), 12345);
+    EXPECT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_end_body_truncated_name) {
+    std::string expected = android::base::StringPrintf("U|%d|track_name|", getpid());
+    std::string name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    atrace_async_for_track_end_body("track_name", name.c_str(), 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    int expected_len = ATRACE_MESSAGE_LENGTH - expected.length() - 1 - 6;
+    expected += android::base::StringPrintf("%.*s|12345", expected_len, name.c_str());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
+TEST_F(TraceDevTest, atrace_async_for_track_end_body_truncated_both) {
+    std::string expected = android::base::StringPrintf("U|%d|", getpid());
+    std::string name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    std::string track_name = MakeName(2 * ATRACE_MESSAGE_LENGTH);
+    atrace_async_for_track_end_body(track_name.c_str(), name.c_str(), 12345);
+
+    ASSERT_EQ(ATRACE_MESSAGE_LENGTH - 1, lseek(atrace_marker_fd, 0, SEEK_CUR));
+    ASSERT_EQ(0, lseek(atrace_marker_fd, 0, SEEK_SET));
+
+    std::string actual;
+    ASSERT_TRUE(android::base::ReadFdToString(atrace_marker_fd, &actual));
+    int expected_len = ATRACE_MESSAGE_LENGTH - expected.length() - 3 - 6;
+    expected += android::base::StringPrintf("%.*s|%.1s|12345", expected_len, track_name.c_str(),
+                                            name.c_str());
+    ASSERT_STREQ(expected.c_str(), actual.c_str());
+}
+
 TEST_F(TraceDevTest, atrace_instant_body_normal) {
     atrace_instant_body("fake_name");
 
diff --git a/libcutils/trace-host.cpp b/libcutils/trace-host.cpp
index b01a0ec..c2a379b 100644
--- a/libcutils/trace-host.cpp
+++ b/libcutils/trace-host.cpp
@@ -28,9 +28,12 @@
 void atrace_end_body() { }
 void atrace_async_begin_body(const char* /*name*/, int32_t /*cookie*/) {}
 void atrace_async_end_body(const char* /*name*/, int32_t /*cookie*/) {}
+void atrace_async_for_track_begin_body(const char* /*track_name*/, const char* /*name*/,
+                                       int32_t /*cookie*/) {}
+void atrace_async_for_track_end_body(const char* /*track_name*/, const char* /*name*/,
+                                     int32_t /*cookie*/) {}
 void atrace_instant_body(const char* /*name*/) {}
-void atrace_instant_for_track_body(const char* /*trackName*/,
-                                   const char* /*name*/) {}
+void atrace_instant_for_track_body(const char* /*track_name*/, const char* /*name*/) {}
 void atrace_int_body(const char* /*name*/, int32_t /*value*/) {}
 void atrace_int64_body(const char* /*name*/, int64_t /*value*/) {}
 void atrace_init() {}