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| author | Donglin Peng <[email protected]> | 2023-04-08 05:42:18 -0700 |
|---|---|---|
| committer | Steven Rostedt (Google) <[email protected]> | 2023-06-20 18:38:37 -0400 |
| commit | 3646970322464c21e69dcb9a2e37d461c5834bf5 (patch) | |
| tree | 956f462b4c4fe897eff8ea811a827448eb1deae4 /tools/testing/selftests/bpf/progs/test_autoload.c | |
| parent | 21c094d3f8a6c88dedbd9831631a263d5c49775f (diff) | |
arm64: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL
The previous patch ("function_graph: Support recording and printing
the return value of function") has laid the groundwork for the for
the funcgraph-retval, and this modification makes it available on
the ARM64 platform.
We introduce a new structure called fgraph_ret_regs for the ARM64
platform to hold return registers and the frame pointer. We then
fill its content in the return_to_handler and pass its address to
the function ftrace_return_to_handler to record the return value.
Link: https://lkml.kernel.org/r/c78366416ce93f704ae7000c4ee60eb4258c38f7.1680954589.git.pengdonglin@sangfor.com.cn
Reviewed-by: Mark Rutland <[email protected]>
Tested-by: Mark Rutland <[email protected]>
Acked-by: Catalin Marinas <[email protected]>
Signed-off-by: Donglin Peng <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_autoload.c')
0 files changed, 0 insertions, 0 deletions