diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..79f7f6a
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,166 @@
+package {
+    default_applicable_licenses: ["external_trace-cmd_license"],
+}
+
+// See: http://go/android-license-faq
+license {
+    name: "external_trace-cmd_license",
+
+    visibility: [":__subpackages__"],
+
+    license_kinds: [
+        "SPDX-license-identifier-GPL-2.0",
+        "SPDX-license-identifier-GPL-2.0-only",
+        "SPDX-license-identifier-GPL-2.0+",
+        "SPDX-license-identifier-GPL-2.0-or-later",
+        "SPDX-license-identifier-LGPL-2.1+",
+    ],
+
+    license_text: [
+        "LICENSE",
+    ],
+}
+
+genrule {
+    name: "tc_version_header",
+    srcs: ["Makefile"],
+    out: ["tc_version.h"],
+    cmd: "(" +
+         "VERSION=$$(grep '\\bTC_VERSION =' <$(in) | awk '{ print $$3 }') " +
+         "&& PATCHLEVEL=$$(grep '\\bTC_PATCHLEVEL =' <$(in) | awk '{ print $$3 }') " +
+         "&& VERSION_CODE=$$(expr $${VERSION} \\* 256 + $${PATCHLEVEL}) " +
+         "&& EXTRAVERSION=$$(grep '\\bTC_EXTRAVERSION =' <$(in) | awk '{ print $$3 }') " +
+         "&& echo '/* This file is automatically generated. Do not modify */' " +
+         "&& echo \"#define VERSION_CODE $${VERSION_CODE}\" " +
+         "&& echo \"#define EXTRAVERSION $${EXTRAVERSION}\" " +
+         "&& echo '#define VERSION_STRING \"'$${VERSION}.$${PATCHLEVEL}.$${EXTRAVERSION}'\"' " +
+         "&& echo '#define FILE_VERSION ' " +
+         "&& echo '#define VERSION_GIT \"not-a-git-repo\"' " +
+         ") > $(out)",
+}
+
+cc_library {
+    name: "libtracecmd",
+
+    // Restrict visibility due to GPL license
+    visibility: [
+        "//external/trace-cmd:__subpackages__",
+    ],
+
+    local_include_dirs: [
+        "lib/trace-cmd/include/private",
+        "lib/trace-cmd/include",
+        "include/trace-cmd",
+        "tracecmd/include",
+        "include",
+    ],
+
+    export_include_dirs: [
+        "lib/trace-cmd/include",
+    ],
+
+    srcs: [
+        "lib/trace-cmd/test.c",
+        "lib/trace-cmd/trace-blk-hack.c",
+        "lib/trace-cmd/trace-compress.c",
+        "lib/trace-cmd/trace-compress-zlib.c",
+        "lib/trace-cmd/trace-filter.c",
+        "lib/trace-cmd/trace-filter-hash.c",
+        "lib/trace-cmd/trace-ftrace.c",
+        "lib/trace-cmd/trace-hash.c",
+        "lib/trace-cmd/trace-hooks.c",
+        "lib/trace-cmd/trace-input.c",
+        "lib/trace-cmd/trace-maps.c",
+        "lib/trace-cmd/trace-msg.c",
+        "lib/trace-cmd/trace-output.c",
+        "lib/trace-cmd/trace-perf.c",
+        "lib/trace-cmd/trace-plugin.c",
+        "lib/trace-cmd/trace-rbtree.c",
+        "lib/trace-cmd/trace-recorder.c",
+        "lib/trace-cmd/trace-timesync.c",
+        "lib/trace-cmd/trace-timesync-kvm.c",
+        "lib/trace-cmd/trace-timesync-ptp.c",
+        "lib/trace-cmd/trace-util.c",
+    ],
+
+    shared: {
+        shared_libs: [
+            "libtraceevent",
+            "libtracefs",
+            "libz",
+        ],
+        export_shared_lib_headers: [
+            "libtraceevent",
+            "libtracefs",
+            "libz",
+        ],
+    },
+
+    static: {
+        static_libs: [
+            "libtraceevent",
+            "libtracefs",
+            "libz",
+        ],
+        export_static_lib_headers: [
+            "libtraceevent",
+            "libtracefs",
+            "libz",
+        ],
+    },
+
+    generated_headers: ["tc_version_header"],
+
+    export_generated_headers: ["tc_version_header"],
+
+    cflags: [
+        "-D__bswap_64=__swap64",
+        "-D_GNU_SOURCE",
+        "-DPERF",
+        "-DVSOCK",
+        "-Wno-unused-parameter",
+        "-Wno-macro-redefined",
+        "-Wno-unused-but-set-variable",
+        "-Wno-user-defined-warnings",
+        "-Wno-visibility",
+        "-Wno-pointer-arith",
+    ],
+
+    c_std: "gnu99",
+}
+
+cc_binary {
+    name: "trace-cmd",
+
+    local_include_dirs: [
+        "lib/trace-cmd/include/private",
+        "include/trace-cmd",
+        "tracecmd/include",
+        "include",
+    ],
+
+    srcs: ["tracecmd/*.c"],
+
+    static_libs: [
+        "libtraceevent",
+        "libtracecmd",
+        "libtracefs",
+    ],
+
+    static_executable: true,
+
+    cflags: [
+        "-D_GNU_SOURCE",
+        "-DNO_AUDIT",
+        "-DVSOCK",
+        // strstrip() is defined in libtracefs too; change our name to avoid
+        // duplicate symbols when statically linking.
+        "-Dstrstrip=strstrip_trace",
+        "-Wno-unused-parameter",
+        "-Wno-macro-redefined",
+        "-Wno-visibility",
+        "-Wno-pointer-arith",
+    ],
+
+    c_std: "gnu99",
+}
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..915311d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,865 @@
+Valid-License-Identifier: GPL-2.0
+Valid-License-Identifier: GPL-2.0-only
+Valid-License-Identifier: GPL-2.0+
+Valid-License-Identifier: GPL-2.0-or-later
+SPDX-URL: https://spdx.org/licenses/GPL-2.0.html
+Usage-Guide:
+  To use this license in source code, put one of the following SPDX
+  tag/value pairs into a comment according to the placement
+  guidelines in the licensing rules documentation.
+  For 'GNU General Public License (GPL) version 2 only' use:
+    SPDX-License-Identifier: GPL-2.0
+  or
+    SPDX-License-Identifier: GPL-2.0-only
+  For 'GNU General Public License (GPL) version 2 or any later version' use:
+    SPDX-License-Identifier: GPL-2.0+
+  or
+    SPDX-License-Identifier: GPL-2.0-or-later
+License-Text:
+
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+                       51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+		    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
+
+-------------------------------------------------------------------------
+
+Valid-License-Identifier: LGPL-2.1
+Valid-License-Identifier: LGPL-2.1+
+SPDX-URL: https://spdx.org/licenses/LGPL-2.1.html
+Usage-Guide:
+  To use this license in source code, put one of the following SPDX
+  tag/value pairs into a comment according to the placement
+  guidelines in the licensing rules documentation.
+  For 'GNU Lesser General Public License (LGPL) version 2.1 only' use:
+    SPDX-License-Identifier: LGPL-2.1
+  For 'GNU Lesser General Public License (LGPL) version 2.1 or any later
+  version' use:
+    SPDX-License-Identifier: LGPL-2.1+
+License-Text:
+
+GNU LESSER GENERAL PUBLIC LICENSE
+Version 2.1, February 1999
+
+Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL. It also counts as
+the successor of the GNU Library Public License, version 2, hence the
+version number 2.1.]
+
+Preamble
+
+The licenses for most software are designed to take away your freedom to
+share and change it. By contrast, the GNU General Public Licenses are
+intended to guarantee your freedom to share and change free software--to
+make sure the software is free for all its users.
+
+This license, the Lesser General Public License, applies to some specially
+designated software packages--typically libraries--of the Free Software
+Foundation and other authors who decide to use it. You can use it too, but
+we suggest you first think carefully about whether this license or the
+ordinary General Public License is the better strategy to use in any
+particular case, based on the explanations below.
+
+When we speak of free software, we are referring to freedom of use, not
+price. Our General Public Licenses are designed to make sure that you have
+the freedom to distribute copies of free software (and charge for this
+service if you wish); that you receive source code or can get it if you
+want it; that you can change the software and use pieces of it in new free
+programs; and that you are informed that you can do these things.
+
+To protect your rights, we need to make restrictions that forbid
+distributors to deny you these rights or to ask you to surrender these
+rights. These restrictions translate to certain responsibilities for you if
+you distribute copies of the library or if you modify it.
+
+For example, if you distribute copies of the library, whether gratis or for
+a fee, you must give the recipients all the rights that we gave you. You
+must make sure that they, too, receive or can get the source code. If you
+link other code with the library, you must provide complete object files to
+the recipients, so that they can relink them with the library after making
+changes to the library and recompiling it. And you must show them these
+terms so they know their rights.
+
+We protect your rights with a two-step method: (1) we copyright the
+library, and (2) we offer you this license, which gives you legal
+permission to copy, distribute and/or modify the library.
+
+To protect each distributor, we want to make it very clear that there is no
+warranty for the free library. Also, if the library is modified by someone
+else and passed on, the recipients should know that what they have is not
+the original version, so that the original author's reputation will not be
+affected by problems that might be introduced by others.
+
+Finally, software patents pose a constant threat to the existence of any
+free program. We wish to make sure that a company cannot effectively
+restrict the users of a free program by obtaining a restrictive license
+from a patent holder. Therefore, we insist that any patent license obtained
+for a version of the library must be consistent with the full freedom of
+use specified in this license.
+
+Most GNU software, including some libraries, is covered by the ordinary GNU
+General Public License. This license, the GNU Lesser General Public
+License, applies to certain designated libraries, and is quite different
+from the ordinary General Public License. We use this license for certain
+libraries in order to permit linking those libraries into non-free
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+That's all there is to it!
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..8fdfb37
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,19 @@
+# This project was upgraded with external_updater.
+# Usage: tools/external_updater/updater.sh update external/trace-cmd
+# For more info, check https://cs.android.com/android/platform/superproject/main/+/main:tools/external_updater/README.md
+
+name: "trace-cmd"
+description: "trace-cmd is a front-end to the ftrace Linux kernel tracer."
+third_party {
+  license_type: RESTRICTED
+  last_upgrade_date {
+    year: 2025
+    month: 1
+    day: 30
+  }
+  identifier {
+    type: "Git"
+    value: "https://git.kernel.org/pub/scm/utils/trace-cmd/trace-cmd.git"
+    version: "trace-cmd-v3.3.1"
+  }
+}
diff --git a/MODULE_LICENSE_GPL b/MODULE_LICENSE_GPL
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_GPL
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..918c418
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,3 @@
+kaleshsingh@google.com
+namhyung@google.com
+include platform/system/core:/janitors/OWNERS #{LAST_RESORT_SUGGESTION}
diff --git a/lib/trace-cmd/include/private/trace-cmd-private.h b/lib/trace-cmd/include/private/trace-cmd-private.h
index e2f2231..b55a161 100644
--- a/lib/trace-cmd/include/private/trace-cmd-private.h
+++ b/lib/trace-cmd/include/private/trace-cmd-private.h
@@ -370,7 +370,11 @@
 	TRACECMD_MSG_FL_PROXY		= 1 << 2,
 };
 
+#ifdef __ANDROID__
+#define MSG_CACHE_FILE "/data/local/tmp/trace_msg_cacheXXXXXX"
+#else	/* !__ANDROID__ */
 #define MSG_CACHE_FILE "/tmp/trace_msg_cacheXXXXXX"
+#endif	/* __ANDROID__ */
 
 /* for both client and server */
 struct tracecmd_msg_handle {
diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index 8b6e3d0..25114a4 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -76,14 +76,24 @@
 struct cpu_zdata {
 	/* uncompressed cpu data */
 	int			fd;
+#ifdef __ANDROID__
+	char			file[37]; /* strlen(COMPR_TEMP_FILE) */
+#else	/* !__ANDROID__ */
 	char			file[26]; /* strlen(COMPR_TEMP_FILE) */
+#endif	/* __ANDROID__ */
+
 	unsigned int		count;
 	unsigned int		last_chunk;
 	struct trace_rbtree	cache;
 	struct tracecmd_compress_chunk	*chunks;
 };
 
+#ifdef __ANDROID__
+#define COMPR_TEMP_FILE "/data/local/tmp/trace_cpu_dataXXXXXX"
+#else	/* !__ANDROID__ */
 #define COMPR_TEMP_FILE "/tmp/trace_cpu_dataXXXXXX"
+#endif	/* __ANDROID__ */
+
 struct cpu_data {
 	/* the first two never change */
 	unsigned long long	file_offset;
diff --git a/tracecmd/trace-setup-guest.c b/tracecmd/trace-setup-guest.c
index 6b0a9fe..daeb4e6 100644
--- a/tracecmd/trace-setup-guest.c
+++ b/tracecmd/trace-setup-guest.c
@@ -124,7 +124,12 @@
 	char cmd[PATH_MAX + 256], xml[PATH_MAX + 256];
 	int i, fd, ret = 0;
 
+#ifdef __ANDROID__
+	strcpy(tmp_path, "/data/local/tmp/pipexmlXXXXXX");
+#else	/* !__ANDROID__ */
 	strcpy(tmp_path, "/tmp/pipexmlXXXXXX");
+#endif	/* __ANDROID__ */
+
 	fd = mkstemp(tmp_path);
 	if (fd < 0)
 		return fd;