On Thu, 27 Apr 2023 10:12:31 +0800
Youling Tang [off-list ref] wrote:

The ftrace samples need per-architecture trampoline implementations
to save and restore argument registers around the calls to
my_direct_func* and to restore polluted registers (eg: ra).

Signed-off-by: Qing Zhang <redacted>
Signed-off-by: Youling Tang <redacted>
---
 arch/loongarch/Kconfig                      |  2 +
 samples/ftrace/ftrace-direct-modify.c       | 34 +++++++++++++++++
 samples/ftrace/ftrace-direct-multi-modify.c | 41 +++++++++++++++++++++
 samples/ftrace/ftrace-direct-multi.c        | 25 +++++++++++++
 samples/ftrace/ftrace-direct-too.c          | 27 ++++++++++++++
 samples/ftrace/ftrace-direct.c              | 23 ++++++++++++
 6 files changed, 152 insertions(+)

Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>

-- Steve