linux-dev/tools/testing/selftests/rcutorture/bin/configinit.sh, branch linus/master

torture: Pass --kmake-arg to all make invocations

2020-06-29T19:01:44Z

We need to pass the arguments provided to --kmake-arg to all make invocations. In particular, the make invocations generating the configs need to see the final make arguments, e.g. if config variables depend on particular variables that are passed to make. For example, when using '--kcsan --kmake-arg CC=clang-11', we would lose CONFIG_KCSAN=y due to 'make oldconfig' not seeing that we want to use a compiler that supports KCSAN. Signed-off-by: Marco Elver Signed-off-by: Paul E. McKenney

torture: Add --trust-make to suppress "make clean"

2019-05-28T16:06:09Z

The current rcutorture scripts unconditionally do "make clean", which is a good way of getting the needed testing done despite any imperfections in Makefile dependency tracking. However, this can be a bit irritating when repeatedly running a single scenario after small changes, for example, when debugging a problem that affects only a single scenario. This commit therefore adds a --trust-make argument that suppresses the "make clean". Even when using ccache, this speeds up kernel builds by up to almost an order of magnitude on my laptop. Reported-by: Peter Zijlstra Signed-off-by: Paul E. McKenney

torture: Run kernel build in source directory

2019-05-28T16:06:09Z

For historical reasons, rcutorture places its build products in a tools/testing/selftests/rcutorture/b1 directory using the O= kbuild command-line argument. However, doing this requires that the source directory be pristine: Not just "make clean" pristine, but instead "make mrproper" (or, equivalently, "make distclean") pristine. Therefore, rcutorture executes a "make mrproper" before each build. Unfortunately, "make mrproper" has the side effect of removing pretty much everything, including tags files and cscope databases, which can be inconvenient to people whose workflow centers around a single source tree. This commit therefore makes rcutorture do the build directly in the source directory, removing the need for "make mrproper". This works because all needed build products are moved to their proper place in the "res" directory immediately after the build completes, so that multiple rcutorture kernels can still run concurrently. Reported-by: Peter Zijlstra Signed-off-by: Paul E. McKenney

tools/.../rcutorture: Convert to SPDX license identifier

2019-03-26T21:42:53Z

Replace the license boiler plate with a SPDX license identifier. While in the area, update an email address and add copyright notices. Signed-off-by: Paul E. McKenney

torture: Use a single build directory for torture scenarios

2018-06-25T18:30:10Z

The torture scripting currently builds each kernel from a set of parallel runs in its own build directory. This can waste quite a bit of space when running large numbers of concurrent scenarios, and pointlessly given that the builds are run sequentially (albeit with a largish -j number passed to "make"). This commit therefore places all build-command output in the results directory, then does all builds in a single "b1" build directory. Signed-off-by: Paul E. McKenney

rcutorture/configinit: Fix build directory error message

2017-12-11T17:18:23Z

The 'configinit.sh' script checks the format of optional argument for the build directory, printing an error message if the format is not valid. However, the error message uses the wrong variable, indicating an empty string even though the user entered a non-empty (but erroneous) string. This commit fixes the script to use the correct variable. Fixes: c87b9c601ac8 ("rcutorture: Add KVM-based test framework") Signed-off-by: SeongJae Park Signed-off-by: Paul E. McKenney

torture: Provide TMPDIR environment variable to specify tmpdir

2017-10-09T21:26:09Z

Both rcutorture and locktorture currently place temporary files in /tmp, in keeping with decades-long tradition. However, sometimes it is useful to specify an alternative temporary directory, for example, for space or performance reasons. This commit therefore causes the torture-test scripting to use the path specified in the TMPDIR environment variable, or to fall back to traditional /tmp if this variable is not set. Signed-off-by: Paul E. McKenney

rcutorture: Display "make oldconfig" errors

2015-05-27T20:00:00Z

The current rcutorture scripting fails to dump out errors from "make oldconfig", so this commit addresses this issue. Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett

rcutorture: Set executable bit and drop bash from Usage

2014-09-07T23:24:38Z

This commit sets the executable bit on test scripts config2frag.sh and kvm.sh. Since #!/bin/bash is set in all the scripts, this commit also drops it from all usage lines because the scripts can now all be invoked directly. Signed-off-by: Pranith Kumar Signed-off-by: Paul E. McKenney

rcutorture: Use bash shell for all the test scripts

2014-09-07T23:24:32Z

Some of the scripts encode a default /bin/sh shell. On systems which use dash as default shell, these scripts fail as they are bash scripts. I encountered this while testing the sprintf() changes on a Debian system where dash is the default shell. This commit changes all such uses to use bash explicitly. Signed-off-by: Pranith Kumar Signed-off-by: Paul E. McKenney