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| author |   Daniel T. Lee <danieltimlee@gmail.com> | 2020-05-16 13:06:08 +0900 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2020-05-19 17:13:03 +0200 |
| commit | 59929cd1fec508a48ea2a04d8f2e4fdef907a2cd (patch) | |
| tree | 2daef9645a717e2ad5ac0dbdfc89e92cd0738adf /samples/bpf/tracex3_kern.c | |
| parent | samples, bpf: Add tracex7 test file to .gitignore (diff) | |
| download | wireguard-linux-59929cd1fec508a48ea2a04d8f2e4fdef907a2cd.tar.xz wireguard-linux-59929cd1fec508a48ea2a04d8f2e4fdef907a2cd.zip | |
samples, bpf: Refactor kprobe, tail call kern progs map definition
Because the previous two commit replaced the bpf_load implementation of
the user program with libbpf, the corresponding kernel program's MAP
definition can be replaced with new BTF-defined map syntax.
This commit only updates the samples which uses libbpf API for loading
bpf program not with bpf_load.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200516040608.1377876-6-danieltimlee@gmail.com
Diffstat (limited to 'samples/bpf/tracex3_kern.c')
| -rw-r--r-- | samples/bpf/tracex3_kern.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/samples/bpf/tracex3_kern.c b/samples/bpf/tracex3_kern.c index fe21c14feb8d..659613c19a82 100644 --- a/samples/bpf/tracex3_kern.c +++ b/samples/bpf/tracex3_kern.c @@ -11,12 +11,12 @@ #include <bpf/bpf_helpers.h> #include <bpf/bpf_tracing.h> -struct bpf_map_def SEC("maps") my_map = { - .type = BPF_MAP_TYPE_HASH, - .key_size = sizeof(long), - .value_size = sizeof(u64), - .max_entries = 4096, -}; +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, long); + __type(value, u64); + __uint(max_entries, 4096); +} my_map SEC(".maps"); /* kprobe is NOT a stable ABI. If kernel internals change this bpf+kprobe * example will no longer be meaningful @@ -42,12 +42,12 @@ static unsigned int log2l(unsigned long long n) #define SLOTS 100 -struct bpf_map_def SEC("maps") lat_map = { - .type = BPF_MAP_TYPE_PERCPU_ARRAY, - .key_size = sizeof(u32), - .value_size = sizeof(u64), - .max_entries = SLOTS, -}; +struct { + __uint(type, BPF_MAP_TYPE_PERCPU_ARRAY); + __uint(key_size, sizeof(u32)); + __uint(value_size, sizeof(u64)); + __uint(max_entries, SLOTS); +} lat_map SEC(".maps"); SEC("kprobe/blk_account_io_completion") int bpf_prog2(struct pt_regs *ctx) |