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| author | Andrii Nakryiko <andriin@fb.com> | 2019-07-18 10:30:21 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-07-29 10:18:08 -0300 |
| commit | 8aa259b10a6a759c50137bbbf225df0c17ca5d27 (patch) | |
| tree | f51cf6680b72bfc55b91126ea05639aa854caad3 /tools | |
| parent | 2e9a06dda10aea81a17c623f08534dac6735434a (diff) | |
| download | lwn-8aa259b10a6a759c50137bbbf225df0c17ca5d27.tar.gz lwn-8aa259b10a6a759c50137bbbf225df0c17ca5d27.zip | |
libbpf: fix missing __WORDSIZE definition
hashmap.h depends on __WORDSIZE being defined. It is defined by
glibc/musl in different headers. It's an explicit goal for musl to be
"non-detectable" at compilation time, so instead include glibc header if
glibc is explicitly detected and fall back to musl header otherwise.
Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Fixes: e3b924224028 ("libbpf: add resizable non-thread safe internal hashmap")
Link: https://lkml.kernel.org/r/20190718173021.2418606-1-andriin@fb.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/lib/bpf/hashmap.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/lib/bpf/hashmap.h b/tools/lib/bpf/hashmap.h index 03748a742146..bae8879cdf58 100644 --- a/tools/lib/bpf/hashmap.h +++ b/tools/lib/bpf/hashmap.h @@ -10,6 +10,11 @@ #include <stdbool.h> #include <stddef.h> +#ifdef __GLIBC__ +#include <bits/wordsize.h> +#else +#include <bits/reg.h> +#endif #include "libbpf_internal.h" static inline size_t hash_bits(size_t h, int bits) |