From: Hengqi Chen <hengqi.chen@gmail.com>
To: bpf@vger.kernel.org
Cc: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
hengqi.chen@gmail.com
Subject: [PATCH bpf-next 0/2] Support static initialization of BPF_MAP_TYPE_PROG_ARRAY
Date: Sun, 21 Nov 2021 21:54:38 +0800 [thread overview]
Message-ID: <20211121135440.3205482-1-hengqi.chen@gmail.com> (raw)
Make libbpf support static initialization of BPF_MAP_TYPE_PROG_ARRAY
with a syntax similar to map-in-map initialization:
SEC("socket")
int tailcall_1(void *ctx)
{
return 0;
}
struct {
__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
__uint(max_entries, 2);
__uint(key_size, sizeof(__u32));
__array(values, int (void *));
} prog_array_init SEC(".maps") = {
.values = {
[1] = (void *)&tailcall_1,
},
};
Hengqi Chen (2):
libbpf: Support static initialization of BPF_MAP_TYPE_PROG_ARRAY
selftests/bpf: Test BPF_MAP_TYPE_PROG_ARRAY static initialization
tools/lib/bpf/libbpf.c | 146 +++++++++++++++---
.../bpf/prog_tests/prog_array_init.c | 27 ++++
.../bpf/progs/test_prog_array_init.c | 30 ++++
3 files changed, 179 insertions(+), 24 deletions(-)
create mode 100644 tools/testing/selftests/bpf/prog_tests/prog_array_init.c
create mode 100644 tools/testing/selftests/bpf/progs/test_prog_array_init.c
--
2.30.2
next reply other threads:[~2021-11-21 13:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-21 13:54 Hengqi Chen [this message]
2021-11-21 13:54 ` [PATCH bpf-next 1/2] libbpf: Support static initialization of BPF_MAP_TYPE_PROG_ARRAY Hengqi Chen
2021-11-23 3:28 ` Andrii Nakryiko
2021-11-24 16:13 ` Hengqi Chen
2021-11-24 19:16 ` Andrii Nakryiko
2021-11-21 13:54 ` [PATCH bpf-next 2/2] selftests/bpf: Test BPF_MAP_TYPE_PROG_ARRAY static initialization Hengqi Chen
2021-11-23 3:28 ` Andrii Nakryiko
2021-11-24 16:18 ` Hengqi Chen
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