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| author | Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> | 2016-07-08 19:35:53 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-07-19 17:03:22 +0300 |
| commit | fcfd708b8cf86b8c1ca6ce014d50287f61c0eb88 (patch) | |
| tree | af73c37b2b2fbbce3af32408eed8d8a0b19072b5 /lib/clz_tab.c | |
| parent | da6a91252ad98d49b49e83b76c1f032cdf6e5258 (diff) | |
| download | linux-fcfd708b8cf86b8c1ca6ce014d50287f61c0eb88.tar.xz | |
arm64: Add kernel return probes support (kretprobes)
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 'lib/clz_tab.c')
0 files changed, 0 insertions, 0 deletions