kernel/tools/testing/selftests/powerpc/harness.c, branch linux-rolling-stable

selftests/powerpc: add const qualification where possible

2023-08-18T07:03:15Z

Various char * parameters in the common powerpc selftest APIs can be const. Signed-off-by: Nathan Lynch Signed-off-by: Michael Ellerman Link: https://msgid.link/20230817-powerpc-selftest-misc-v1-2-a84cc1ef78b2@linux.ibm.com

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191

2019-05-30T18:29:21Z

Based on 1 normalized pattern(s): licensed under gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 99 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.de Signed-off-by: Greg Kroah-Hartman

selftests/powerpc: Add a signal fuzzer selftest

2019-05-02T16:55:02Z

This is a new selftest that raises SIGUSR1 signals and handles it in a set of different ways, trying to create different scenario for testing purpose. This test works raising a signal and calling sigreturn interleaved with TM operations, as starting, suspending and terminating a transaction. The test depends on random numbers, and, based on them, it sets different TM states. Other than that, the test fills out the user context struct that is passed to the sigreturn system call with random data, in order to make sure that the signal handler syscall can handle different and invalid states properly. This selftest has command line parameters to control what kind of tests the user wants to run, as for example, if a transaction should be started prior to signal being raised, or, after the signal being raised and before the sigreturn. If no parameter is given, the default is enabling all options. This test does not check if the user context is being read and set properly by the kernel. Its purpose, at this time, is basically guaranteeing that the kernel does not crash on invalid scenarios. Signed-off-by: Breno Leitao Signed-off-by: Michael Ellerman

selftests/powerpc: Kill child processes on SIGINT

2018-08-08T08:52:24Z

There are some powerpc selftests, as tm/tm-unavailable, that run for a long period (>120 seconds), and if it is interrupted, as pressing CRTL-C (SIGINT), the foreground process (harness) dies but the child process and threads continue to execute (with PPID = 1 now) in background. In this case, you'd think the whole test exited, but there are remaining threads and processes being executed in background. Sometimes these zombies processes are doing annoying things, as consuming the whole CPU or dumping things to STDOUT. This patch fixes this problem by attaching an empty signal handler to SIGINT in the harness process. This handler will interrupt (EINTR) the parent process waitpid() call, letting the code to follow through the normal flow, which will kill all the processes in the child process group. This patch also fixes a typo. Signed-off-by: Breno Leitao Signed-off-by: Gustavo Romero Signed-off-by: Michael Ellerman

selftest/powerpc: Fix false failures for skipped tests

2017-03-03T00:24:50Z

Tests under alignment subdirectory are skipped when executed on previous generation hardware, but harness still marks them as failed. test: test_copy_unaligned tags: git_version:unknown [SKIP] Test skipped on line 26 skip: test_copy_unaligned selftests: copy_unaligned [FAIL] The MAGIC_SKIP_RETURN_VALUE value assigned to rc variable is retained till the program exit which causes the test to be marked as failed. This patch resets the value before returning to the main() routine. With this patch the test o/p is as follows: test: test_copy_unaligned tags: git_version:unknown [SKIP] Test skipped on line 26 skip: test_copy_unaligned selftests: copy_unaligned [PASS] Signed-off-by: Sachin Sant Signed-off-by: Michael Ellerman

selftests/powerpc: Allow tests to extend their kill timeout

2016-10-04T09:10:13Z

Signed-off-by: Cyril Bur Signed-off-by: Michael Ellerman

selftests/powerpc: Move get_auxv_entry() into utils.c

2015-12-14T09:41:47Z

This doesn't really belong in harness.c, it's a helper function. So move it into utils.c. Signed-off-by: Michael Ellerman

selftests/powerpc: Move get_auxv_entry() to harness.c

2015-04-11T10:49:20Z

Move get_auxv_entry() from pmu/lib.c up to harness.c in order to make it available to other tests. Signed-off-by: Sam Bobroff Signed-off-by: Michael Ellerman

selftests/powerpc: Add support for skipping tests

2014-06-11T07:03:54Z

Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt

selftests/powerpc: Put the test in a separate process group

2014-06-11T07:03:49Z

Allows us to kill the test and any children it has spawned. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt