Xu Kuohai efc9909fdc bpf, arm64: Add bpf trampoline for arm64 ... This is arm64 version of commit fec56f5890 ("bpf: Introduce BPF trampoline"). A bpf trampoline converts native calling convention to bpf calling convention and is used to implement various bpf features, such as fentry, fexit, fmod_ret and struct_ops. This patch does essentially the same thing that bpf trampoline does on x86. Tested on Raspberry Pi 4B and qemu: #18 /1 bpf_tcp_ca/dctcp:OK #18 /2 bpf_tcp_ca/cubic:OK #18 /3 bpf_tcp_ca/invalid_license:OK #18 /4 bpf_tcp_ca/dctcp_fallback:OK #18 /5 bpf_tcp_ca/rel_setsockopt:OK #18 bpf_tcp_ca:OK #51 /1 dummy_st_ops/dummy_st_ops_attach:OK #51 /2 dummy_st_ops/dummy_init_ret_value:OK #51 /3 dummy_st_ops/dummy_init_ptr_arg:OK #51 /4 dummy_st_ops/dummy_multiple_args:OK #51 dummy_st_ops:OK #57 /1 fexit_bpf2bpf/target_no_callees:OK #57 /2 fexit_bpf2bpf/target_yes_callees:OK #57 /3 fexit_bpf2bpf/func_replace:OK #57 /4 fexit_bpf2bpf/func_replace_verify:OK #57 /5 fexit_bpf2bpf/func_sockmap_update:OK #57 /6 fexit_bpf2bpf/func_replace_return_code:OK #57 /7 fexit_bpf2bpf/func_map_prog_compatibility:OK #57 /8 fexit_bpf2bpf/func_replace_multi:OK #57 /9 fexit_bpf2bpf/fmod_ret_freplace:OK #57 fexit_bpf2bpf:OK #237 xdp_bpf2bpf:OK Signed-off-by: Xu Kuohai <xukuohai@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Acked-by: Song Liu <songliubraving@fb.com> Acked-by: KP Singh <kpsingh@kernel.org> Link: https://lore.kernel.org/bpf/20220711150823.2128542-5-xukuohai@huawei.com		2022-07-11 21:08:08 +02:00
..
bpf_jit_comp.c	bpf, arm64: Add bpf trampoline for arm64	2022-07-11 21:08:08 +02:00
bpf_jit.h	bpf, arm64: Implement bpf_arch_text_poke() for arm64	2022-07-11 21:08:01 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00