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| author | Andrii Nakryiko <andriin@fb.com> | 2019-04-16 20:47:17 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2019-04-17 04:44:19 +0200 |
| commit | e1d1dc4653ecdea55cb0e96844f88da62c65cd4f (patch) | |
| tree | 712868efc5cad0a0d7915f03f0bb2a4a78049b20 /tools/lib | |
| parent | bpf: use BPF_CAST_CALL for casting bpf call (diff) | |
| download | linux-e1d1dc4653ecdea55cb0e96844f88da62c65cd4f.tar.xz linux-e1d1dc4653ecdea55cb0e96844f88da62c65cd4f.zip | |
libbpf: fix printf formatter for ptrdiff_t argument
Using %ld for printing out value of ptrdiff_t type is not portable
between 32-bit and 64-bit archs. This is causing compilation errors for
libbpf on 32-bit platform (discovered as part of an effort to integrate
libbpf into systemd ([0])). Proper formatter is %td, which is used in
this patch.
v2->v1:
- add Reported-by
- provide more context on how this issue was discovered
[0] https://github.com/systemd/systemd/pull/12151
Reported-by: Evgeny Vereshchagin <evvers@ya.ru>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
| -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 e5b77ad97795..d817bf20f3d6 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -817,7 +817,7 @@ bpf_object__init_internal_map(struct bpf_object *obj, struct bpf_map *map, memcpy(*data_buff, data->d_buf, data->d_size); } - pr_debug("map %ld is \"%s\"\n", map - obj->maps, map->name); + pr_debug("map %td is \"%s\"\n", map - obj->maps, map->name); return 0; } |