tjh.dev
Merge tag 'trace-v6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fix from Steven Rostedt:
- Fix event format field alignments for 32 bit architectures
The fields in the event format files are used to parse the raw binary
buffer data by applications. If they are incorrect, then the
application produces garbage.
On 32 bit architectures, the function graph 64bit calltime and
rettime were off by 4bytes. That's because the actual fields are in a
packed structure but the macros used by the ftrace events did not
mark them as packed, and instead, gave them their natural alignment
which made their offsets off by 4 bytes.
There are macros to have a packed field within an embedded structure
of an event, but there's no macro for normal fields within a packed
structure of the event. The macro __field_packed() was used for the
packed embedded structure field. Rename that to __field_desc_packed()
(to match the non-packed embedded field macro __field_desc()), and
make __field_packed() for fields that are in a packed event structure
(which matches the unpacked __field() macro).
Switch the calltime and rettime fields of the function graph event to
use the new __field_packed() and this makes the offsets correct.
* tag 'trace-v6.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Fix ftrace event field alignments