diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-10-14 18:02:25 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-10-18 17:33:08 +0300 |
| commit | 0035bff08078a444d4572ba2eaf79523dc885857 (patch) | |
| tree | a1b5af5be8fa144244d13592cec6d7e0e813e31c /lib/igt_core.h | |
| parent | bb5735423eaf6fdbf6b2f94ef0b8520e74eab993 (diff) | |
lib: Add igt_trace()
Add igt_trace() which can be used to inject messages into the
kernel ftrace buffer via the trace_marker file. Quite useful when
trying to correlate test case activity with kernel tracepoints.
v2: Use igt_debugfs_mount() (Chris)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Diffstat (limited to 'lib/igt_core.h')
| -rw-r--r-- | lib/igt_core.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/igt_core.h b/lib/igt_core.h index 521cda10..e8b61128 100644 --- a/lib/igt_core.h +++ b/lib/igt_core.h @@ -1191,6 +1191,15 @@ int igt_system_quiet(const char *command); } while (0) /** + * igt_trace: + * @format: printf-style format string with optional args + * + * Writes a message into the kernel trace log. + */ +__attribute__((format(printf, 1, 2))) +void igt_trace(const char *format, ...); + +/** * igt_kmsg: * @format: printf-style format string with optional args * |