linux-kernel - [PATCH v2 0/2] selftests/liveupdate: add end to end test infrastructure and scripts

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Message-ID: <20260205222329.2419035-1-jordanrichards@google.com>
Date: Thu,  5 Feb 2026 22:23:27 +0000
From: Jordan Richards <jordanrichards@...gle.com>
To: Pasha Tatashin <pasha.tatashin@...een.com>, Mike Rapoport <rppt@...nel.org>, 
	Pratyush Yadav <pratyush@...nel.org>, Shuah Khan <shuah@...nel.org>
Cc: Jason Miu <jasonmiu@...gle.com>, David Matlack <dmatlack@...gle.com>, linux-mm@...ck.org, 
	linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org, 
	Jordan Richards <jordanrichards@...gle.com>
Subject: [PATCH v2 0/2] selftests/liveupdate: add end to end test
 infrastructure and scripts

This patch series adds end to end testing infrastructure required to
verify the liveupdate feature, building and running the existing
selftests on supported architectures.

To support executing the selftests as part of an init process, this
patch series also adds ftruncate() to nolibc.

Changelog from v1 [1]:
- Moved ftruncate() wrapper to nolibc and fixed issue building selftests without nolibc
- Fixed handling of CROSS_COMPILE env variable
- Remove unecessary complexity in luo_test.sh
- Move results_* directory to selftests/liveupdate/

[1] https://lore.kernel.org/linux-mm/20260122214427.3568647-1-jordanrichards@google.com/

Jordan Richards (1):
  tools/nolibc: add ftruncate()

Pasha Tatashin (1):
  selftests/liveupdate: add end to end test infrastructure and scripts

 tools/include/nolibc/unistd.h                 |  11 +
 tools/testing/selftests/liveupdate/.gitignore |   1 +
 tools/testing/selftests/liveupdate/config     |   1 +
 .../selftests/liveupdate/config.aarch64       |   2 +
 .../selftests/liveupdate/config.x86_64        |   2 +
 tools/testing/selftests/liveupdate/init.c     | 179 ++++++++++++
 .../testing/selftests/liveupdate/luo_test.sh  | 276 ++++++++++++++++++
 .../selftests/liveupdate/luo_test_utils.c     |  27 +-
 tools/testing/selftests/liveupdate/run.sh     |  63 ++++
 9 files changed, 549 insertions(+), 13 deletions(-)
 create mode 100644 tools/testing/selftests/liveupdate/config.aarch64
 create mode 100644 tools/testing/selftests/liveupdate/config.x86_64
 create mode 100644 tools/testing/selftests/liveupdate/init.c
 create mode 100755 tools/testing/selftests/liveupdate/luo_test.sh
 create mode 100755 tools/testing/selftests/liveupdate/run.sh


base-commit: 145197c9801f90fed517447e24a9d20f3927cf27
--
2.53.0.rc2.204.g2597b5adb4-goog