diff options
| author |   Matt Smith <alastorze@fb.com> | 2021-09-01 12:44:37 -0700 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2021-09-07 17:33:49 -0700 |
| commit | 08a6f22ef6f843d0ea7252087787b5ab04610bec (patch) | |
| tree | 06f550bd14bb1f2f97cb7b532616429bb79abf0c /tools/lib/bpf/libbpf.h | |
| parent | libbpf: Don't crash on object files with no symbol tables (diff) | |
| download | linux-dev-08a6f22ef6f843d0ea7252087787b5ab04610bec.tar.xz linux-dev-08a6f22ef6f843d0ea7252087787b5ab04610bec.zip | |
libbpf: Change bpf_object_skeleton data field to const pointer
This change was necessary to enforce the implied contract
that bpf_object_skeleton->data should not be mutated. The data
will be cast to `void *` during assignment to handle the case
where a user is compiling with older libbpf headers to avoid
a compiler warning of `const void *` data being cast to `void *`
Signed-off-by: Matt Smith <alastorze@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210901194439.3853238-2-alastorze@fb.com
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index f177d897c5f7..2f6f0e15d1e7 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -854,7 +854,7 @@ struct bpf_object_skeleton { size_t sz; /* size of this struct, for forward/backward compatibility */ const char *name; - void *data; + const void *data; size_t data_sz; struct bpf_object **obj; |