Commit | Line | Data |
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adf75200 | 1 | * Workflow for updating patches from newer kernel: |
f62b389e | 2 | |
4f47ccf0 | 3 | Pull the new headers from mainline kernel to this subdirectory. |
9791246c | 4 | Update those headers to fix the lttng-modules instrumentation style. |
adf75200 MD |
5 | |
6 | ||
7 | * Workflow to add new Tracepoint instrumentation to newer kernel, | |
8 | and add support for it into LTTng: | |
9 | ||
10 | a) instrument the kernel with new trace events headers. If you want that | |
11 | instrumentation distributed, you will have to push those changes into | |
12 | the upstream Linux kernel first, | |
4f47ccf0 | 13 | b) copy those headers into this subdirectory, |
9791246c | 14 | c) look at a diff from other headers between mainline kernel version and |
4f47ccf0 MD |
15 | those in this subdirectory, and use that as a recipe to alter the new |
16 | headers copy. | |
adf75200 MD |
17 | d) create a new file in probes/ for the new trace event header you added, |
18 | e) add it to probes/Makefile, | |
19 | f) build, make modules_install, | |
20 | g) don't forget to load that new module too. | |
21 | ||
22 | Currently, LTTng policy is to only accept headers derived from trace | |
23 | event headers accepted into the Linux kernel upstream for tracepoints | |
24 | related to upstream kernel instrumentation. |