pm24.git/tools/testing/selftests/ftrace, branch v5.3

Merge tag 'trace-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2019-07-18T18:51:00Z

Pull tracing updates from Steven Rostedt: "The main changes in this release include: - Add user space specific memory reading for kprobes - Allow kprobes to be executed earlier in boot The rest are mostly just various clean ups and small fixes" * tag 'trace-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits) tracing: Make trace_get_fields() global tracing: Let filter_assign_type() detect FILTER_PTR_STRING tracing: Pass type into tracing_generic_entry_update() ftrace/selftest: Test if set_event/ftrace_pid exists before writing ftrace/selftests: Return the skip code when tracing directory not configured in kernel tracing/kprobe: Check registered state using kprobe tracing/probe: Add trace_event_call accesses APIs tracing/probe: Add probe event name and group name accesses APIs tracing/probe: Add trace flag access APIs for trace_probe tracing/probe: Add trace_event_file access APIs for trace_probe tracing/probe: Add trace_event_call register API for trace_probe tracing/probe: Add trace_probe init and free functions tracing/uprobe: Set print format when parsing command tracing/kprobe: Set print format right after parsed command kprobes: Fix to init kprobes in subsys_initcall tracepoint: Use struct_size() in kmalloc() ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS ftrace: Enable trampoline when rec count returns back to one tracing/kprobe: Do not run kprobe boot tests if kprobe_event is on cmdline tracing: Make a separate config for trace event self tests ...

ftrace/selftest: Test if set_event/ftrace_pid exists before writing

2019-07-16T19:14:48Z

While testing on a very old kernel (3.5), the tests failed because the write to set_event_pid in the setup code, did not exist. The tests themselves could pass, but the setup failed causing an error. Other files test for existance before writing to them. Do the same for set_event_pid and set_ftrace_pid. Acked-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware)

ftrace/selftests: Return the skip code when tracing directory not configured in kernel

2019-07-16T19:14:47Z

If the kernel is not configured with ftrace enabled, the ftracetest selftests should return the error code of "4" as that is the kselftests "skip" code, and not "1" which means an error. To determine if ftrace is enabled, first the newer "tracefs" is searched for in /proc/mounts. If it is not found, then "debugfs" is searched for (as old kernels do not have tracefs). If that is not found, an attempt to mount the tracefs or debugfs is performed. This is done by seeing first if the /sys/kernel/tracing directory exists. If it does than tracefs is configured in the kernel and an attempt to mount it is performed. If /sys/kernel/tracing does not exist, then /sys/kernel/debug is tested to see if that directory exists. If it does, then an attempt to mount debugfs on that directory is performed. If it does not exist, then debugfs is not configured in the running kernel and the test exits with the skip code. If either mount fails, then a normal error is returned as they do exist in the kernel but something went wrong to mount them. This changes the test to always try the tracefs file system first as it has been in the kernel for some time now and it is better to test it if it is available instead of always testing debugfs. Link: http://lkml.kernel.org/r/20190702062358.7330-1-po-hsu.lin@canonical.com Reported-by: Po-Hsu Lin Acked-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware)

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 472

2019-06-19T15:09:11Z

Based on 1 normalized pattern(s): released under the terms of the gpl v2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Enrico Weigelt Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081203.398003637@linutronix.de Signed-off-by: Greg Kroah-Hartman

selftests/ftrace: Add user-memory access syntax testcase

2019-05-26T03:04:42Z

Add a user-memory access syntax testcase which checks new user-memory access syntax and ustring type. Link: http://lkml.kernel.org/r/155789873385.26965.9557271156179140676.stgit@devnote2 Acked-by: Ingo Molnar Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware)

selftests/ftrace: Add checkbashisms meta-testcase

2019-05-24T19:38:29Z

Add a meta-testcase which tests ftracetest itself with checkbasisms. This helps us to keep our test script bashisms clean. Signed-off-by: Masami Hiramatsu Signed-off-by: Shuah Khan

selftests/ftrace: Make a script checkbashisms clean

2019-05-24T19:37:46Z

Make kprobe_ftrace.tc checkbashisms clean. Since "grep function available_tracers" causes an error on checkbashisms, fix it by explicitly escaping with double-quotations. Signed-off-by: Masami Hiramatsu Signed-off-by: Shuah Khan

selftests/ftrace: Add tracing/error_log testcase

2019-04-08T13:22:50Z

Add a testcase verifying basic tracing/error_log functionality. Link: http://lkml.kernel.org/r/bf1c0d47a24672df945331462682d96296d1ab28.1554072478.git.tom.zanussi@linux.intel.com Acked-by: Masami Hiramatsu Acked-by: Namhyung Kim Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (VMware)

selftests/ftrace: Remove trigger-extended-error-support testcase

2019-04-08T13:22:50Z

Error handling has been moved to the common tracing/error_log, so this test is no longer valid. Link: http://lkml.kernel.org/r/876a98b21018814cbf46f0a3605ae0906c51d53c.1554072478.git.tom.zanussi@linux.intel.com Acked-by: Masami Hiramatsu Acked-by: Namhyung Kim Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (VMware)

selftests/ftrace: Move kprobe/uprobe check_error() to test.d/functions

2019-04-08T13:22:50Z

The k/uprobe_sytax_errors test case defines a check_error() function used to run a command and check the position of the caret in the output. This would be useful for other ftrace facilities too, so move it to test.d/functions for use by anyone. In the process, rename it to ftrace_errlog_check() and parametrize it for general use. Link: http://lkml.kernel.org/r/9f88080a06f1755811f69081926afe7e5cb53178.1554072478.git.tom.zanussi@linux.intel.com Acked-by: Masami Hiramatsu Signed-off-by: Tom Zanussi Signed-off-by: Steven Rostedt (VMware)