diff options
| author | YiFei Zhu <zhuyifei@google.com> | 2020-09-16 02:45:41 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-09-16 04:28:27 +0300 |
| commit | 5d23328dccd93c47e2719cb9d2ae303c235d277d (patch) | |
| tree | 9e6e301201a9a5f400125dcfa8d9cd1e9c5ec4ef /tools/lib/bpf/bpf.h | |
| parent | ef15314aa5de955c6afd87d512e8b00f5ac08d06 (diff) | |
| download | linux-5d23328dccd93c47e2719cb9d2ae303c235d277d.tar.xz | |
libbpf: Add BPF_PROG_BIND_MAP syscall and use it on .rodata section
The patch adds a simple wrapper bpf_prog_bind_map around the syscall.
When the libbpf tries to load a program, it will probe the kernel for
the support of this syscall and unconditionally bind .rodata section
to the program.
Signed-off-by: YiFei Zhu <zhuyifei@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Cc: YiFei Zhu <zhuyifei1999@gmail.com>
Link: https://lore.kernel.org/bpf/20200915234543.3220146-4-sdf@google.com
Diffstat (limited to 'tools/lib/bpf/bpf.h')
| -rw-r--r-- | tools/lib/bpf/bpf.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 015d13f25fcc..8c1ac4b42f90 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -243,6 +243,14 @@ LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, enum bpf_stats_type; /* defined in up-to-date linux/bpf.h */ LIBBPF_API int bpf_enable_stats(enum bpf_stats_type type); +struct bpf_prog_bind_opts { + size_t sz; /* size of this struct for forward/backward compatibility */ + __u32 flags; +}; +#define bpf_prog_bind_opts__last_field flags + +LIBBPF_API int bpf_prog_bind_map(int prog_fd, int map_fd, + const struct bpf_prog_bind_opts *opts); #ifdef __cplusplus } /* extern "C" */ #endif |