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| author | Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> | 2016-07-08 12:35:53 -0400 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-10-20 15:38:13 +0800 |
| commit | e09606a554c46cbb70bf6ca0e4b644b28e39e7d2 (patch) | |
| tree | 541ade0eb77e051880054cf0bcfc5481cb46ac8d /samples/kprobes/kprobe_example.c | |
| parent | aecc244b48b51e2ce0f1fefd3111ba6d6548d0ce (diff) | |
arm64: Add kernel return probes support (kretprobes)
commit fcfd708b8cf86b8c1ca6ce014d50287f61c0eb88 upstream.
The pre-handler of this special 'trampoline' kprobe executes the return
probe handler functions and restores original return address in ELR_EL1.
This way the saved pt_regs still hold the original register context to be
carried back to the probed kernel function.
Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'samples/kprobes/kprobe_example.c')
0 files changed, 0 insertions, 0 deletions