linux/tools/testing/selftests/pidfd, branch v5.2

tests: fix pidfd-test compilation

2019-06-05T13:06:32Z

Define __NR_pidfd_send_signal if it isn't to prevent a potential compilation error. To make pidfd-test compile on all arches, irrespective of whether or not syscall numbers are assigned, define the syscall number to -1. If it isn't defined this will cause the kernel to return -ENOSYS. Fixes: 575a0ae9744d ("selftests: add tests for pidfd_send_signal()") Signed-off-by: Christian Brauner

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

selftests: pidfd: Create .gitignore to include pidfd_test

2019-05-14T23:36:49Z

Create ../selftests/pidfd/.gitignore which holds the following file name created after compiling: - pidfd_test Signed-off-by: Kelsey Skunberg Signed-off-by: Shuah Khan

selftests: Add test plan API to kselftest.h and adjust callers

2019-04-25T19:15:46Z

The test plan for TAP needs to be declared immediately after the header. This adds the test plan API to kselftest.h and updates all callers to declare their expected test counts. Signed-off-by: Kees Cook Signed-off-by: Shuah Khan

selftests: add tests for pidfd_send_signal()

2019-03-05T16:04:33Z

As suggested by Andrew Morton in [1] add selftests for the new sys_pidfd_send_signal() syscall: /* test_pidfd_send_signal_syscall_support */ Test whether the pidfd_send_signal() syscall is supported and the tests can be run or need to be skipped. /* test_pidfd_send_signal_simple_success */ Test whether sending a signal via a pidfd works. /* test_pidfd_send_signal_exited_fail */ Verify that sending a signal to an already exited process fails with ESRCH. /* test_pidfd_send_signal_recycled_pid_fail */ Verify that a recycled pid cannot be signaled via a pidfd referring to an already exited process that had the same pid (cf. [2], [3]). [1]: https://lore.kernel.org/lkml/20181228152012.dbf0508c2508138efc5f2bbe@linux-foundation.org/ [2]: https://lore.kernel.org/lkml/20181230210245.GA30252@mail.hallyn.com/ [3]: https://lore.kernel.org/lkml/20181230232711.7aayb7vnhogbv4co@brauner.io/ Cc: Arnd Bergmann Cc: "Eric W. Biederman" Cc: Kees Cook Cc: Jann Horn Cc: Andy Lutomirsky Cc: Andrew Morton Cc: Oleg Nesterov Cc: Aleksa Sarai Cc: Al Viro Cc: Florian Weimer Signed-off-by: Christian Brauner Reviewed-by: Tycho Andersen Acked-by: Serge Hallyn