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Implement the following three pieces required from the JIT: - A "top-level" BPF prog (exception_boundary) must save all non-volatile registers, and not only the ones that it clobbers. - A "handler" BPF prog (exception_cb) must switch stack to that of exception_boundary, and restore the registers that exception_boundary saved. - arch_bpf_stack_walk() must unwind the stack and provide the results in a way that satisfies both bpf_throw() and exception_cb. Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20240703005047.40915-3-iii@linux.ibm.com |
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| .. | ||
| bpf_jit_comp.c | ||
| bpf_jit.h | ||
| Makefile | ||
| pnet.c | ||