diff options
| author | Daniel T. Lee <danieltimlee@gmail.com> | 2023-08-18 18:01:12 +0900 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-08-21 15:39:09 -0700 |
| commit | e7e6c774f5d40244444f23b8c49dac2ded158d8c (patch) | |
| tree | a6b348adf3883cbaaed55b2a273dd62b2eb416bf /samples/bpf/net_shared.h | |
| parent | 34f6e38f58db9a94718c273edc9ca3fc8b4dba5f (diff) | |
samples/bpf: convert to vmlinux.h with tracing programs
This commit replaces separate headers with a single vmlinux.h to
tracing programs. Thanks to that, we no longer need to define the
argument structure for tracing programs directly. For example, argument
for the sched_switch tracpepoint (sched_switch_args) can be replaced
with the vmlinux.h provided trace_event_raw_sched_switch.
Additional defines have been added to the BPF program either directly
or through the inclusion of net_shared.h. Defined values are
PERF_MAX_STACK_DEPTH, IFNAMSIZ constants and __stringify() macro. This
change enables the BPF program to access internal structures with BTF
generated "vmlinux.h" header.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Link: https://lore.kernel.org/r/20230818090119.477441-3-danieltimlee@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples/bpf/net_shared.h')
| -rw-r--r-- | samples/bpf/net_shared.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/samples/bpf/net_shared.h b/samples/bpf/net_shared.h index e9429af9aa44..88cc52461c98 100644 --- a/samples/bpf/net_shared.h +++ b/samples/bpf/net_shared.h @@ -17,6 +17,8 @@ #define TC_ACT_OK 0 #define TC_ACT_SHOT 2 +#define IFNAMSIZ 16 + #if defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && \ __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ #define bpf_ntohs(x) __builtin_bswap16(x) |