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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-18 21:51:00 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-18 21:51:00 +0300 |
commit | 818e95c768c6607a1df4cf022c00c3c58e2f203e (patch) | |
tree | 453a2b891097c379f1f133f4821a46628d86002b /tools/testing/selftests/ftrace/ftracetest | |
parent | d4df33b0e9925c158b313a586fb1557cf29cfdf4 (diff) | |
parent | 0aeb1def44169cbe7119f26cf10b974a2046142e (diff) | |
download | linux-818e95c768c6607a1df4cf022c00c3c58e2f203e.tar.xz |
Merge tag 'trace-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
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
...
Diffstat (limited to 'tools/testing/selftests/ftrace/ftracetest')
-rwxr-xr-x | tools/testing/selftests/ftrace/ftracetest | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest index 6d5e9e87c4b7..063ecb290a5a 100755 --- a/tools/testing/selftests/ftrace/ftracetest +++ b/tools/testing/selftests/ftrace/ftracetest @@ -23,9 +23,15 @@ echo " If <dir> is -, all logs output in console only" exit $1 } +# default error +err_ret=1 + +# kselftest skip code is 4 +err_skip=4 + errexit() { # message echo "Error: $1" 1>&2 - exit 1 + exit $err_ret } # Ensuring user privilege @@ -116,11 +122,31 @@ parse_opts() { # opts } # Parameters -DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1` -if [ -z "$DEBUGFS_DIR" ]; then - TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1` -else - TRACING_DIR=$DEBUGFS_DIR/tracing +TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1` +if [ -z "$TRACING_DIR" ]; then + DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1` + if [ -z "$DEBUGFS_DIR" ]; then + # If tracefs exists, then so does /sys/kernel/tracing + if [ -d "/sys/kernel/tracing" ]; then + mount -t tracefs nodev /sys/kernel/tracing || + errexit "Failed to mount /sys/kernel/tracing" + TRACING_DIR="/sys/kernel/tracing" + # If debugfs exists, then so does /sys/kernel/debug + elif [ -d "/sys/kernel/debug" ]; then + mount -t debugfs nodev /sys/kernel/debug || + errexit "Failed to mount /sys/kernel/debug" + TRACING_DIR="/sys/kernel/debug/tracing" + else + err_ret=$err_skip + errexit "debugfs and tracefs are not configured in this kernel" + fi + else + TRACING_DIR="$DEBUGFS_DIR/tracing" + fi +fi +if [ ! -d "$TRACING_DIR" ]; then + err_ret=$err_skip + errexit "ftrace is not configured in this kernel" fi TOP_DIR=`absdir $0` |