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| author | Andrii Nakryiko <[email protected]> | 2019-11-22 00:35:27 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <[email protected]> | 2019-11-25 00:58:46 +0000 |
| commit | 1aace10f41adf1080d1cc54de9b3db98b8b8b0fb (patch) | |
| tree | 36bcf6fb5bbafede18a029dec609d94c9c67bf30 /tools/lib/bpf/libbpf.c | |
| parent | xdp: Fix cleanup on map free for devmap_hash map type (diff) | |
| download | kernel-1aace10f41adf1080d1cc54de9b3db98b8b8b0fb.tar.gz kernel-1aace10f41adf1080d1cc54de9b3db98b8b8b0fb.zip | |
libbpf: Fix bpf_object name determination for bpf_object__open_file()
If bpf_object__open_file() gets path like "some/dir/obj.o", it should derive
BPF object's name as "obj" (unless overriden through opts->object_name).
Instead, due to using `path` as a fallback value for opts->obj_name, path is
used as is for object name, so for above example BPF object's name will be
verbatim "some/dir/obj", which leads to all sorts of troubles, especially when
internal maps are concern (they are using up to 8 characters of object name).
Fix that by ensuring object_name stays NULL, unless overriden.
Fixes: 291ee02b5e40 ("libbpf: Refactor bpf_object__open APIs to use common opts")
Signed-off-by: Andrii Nakryiko <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
Diffstat (limited to 'tools/lib/bpf/libbpf.c')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index a4e250a369c6..e1698461c6b3 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -3940,7 +3940,7 @@ __bpf_object__open(const char *path, const void *obj_buf, size_t obj_buf_sz, if (!OPTS_VALID(opts, bpf_object_open_opts)) return ERR_PTR(-EINVAL); - obj_name = OPTS_GET(opts, object_name, path); + obj_name = OPTS_GET(opts, object_name, NULL); if (obj_buf) { if (!obj_name) { snprintf(tmp_name, sizeof(tmp_name), "%lx-%lx", |