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ca45c84afb
Introduce a bpf_has_frame_pointer() helper that unwinders can call to determine whether a given instruction pointer is within the valid frame pointer region of a BPF JIT program or trampoline (i.e., after the prologue, before the epilogue). This will enable livepatch (with the ORC unwinder) to reliably unwind through BPF JIT frames. Acked-by: Song Liu <song@kernel.org> Acked-and-tested-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Link: https://lore.kernel.org/r/fd2bc5b4e261a680774b28f6100509fd5ebad2f0.1764818927.git.jpoimboe@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Jiri Olsa <jolsa@kernel.org> |
History
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| .. | ||
| bpf_jit_comp.c | ||
| bpf_jit_comp32.c | ||
| bpf_timed_may_goto.S | ||
| Makefile | ||