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authorArnaldo Carvalho de Melo <acme@kernel.org>2020-06-10 00:16:53 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2020-06-10 02:19:25 +0300
commit8ca8d4a841730c02e77bf3c87bf658cc44f364b9 (patch)
treeb699f3f002299f989c1cd419c759eaab9fcc23e3 /tools/lib/bpf/hashmap.h
parent042b1545fe47788e734b0f074a8ae65856015cdf (diff)
downloadlinux-8ca8d4a841730c02e77bf3c87bf658cc44f364b9.tar.xz
libbpf: Define __WORDSIZE if not available
Some systems, such as Android, don't have a define for __WORDSIZE, do it in terms of __SIZEOF_LONG__, as done in perf since 2012: http://git.kernel.org/torvalds/c/3f34f6c0233ae055b5 For reference: https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html I build tested it here and Andrii did some Travis CI build tests too. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andriin@fb.com> Link: https://lore.kernel.org/bpf/20200608161150.GA3073@kernel.org
Diffstat (limited to 'tools/lib/bpf/hashmap.h')
-rw-r--r--tools/lib/bpf/hashmap.h7
1 files changed, 3 insertions, 4 deletions
diff --git a/tools/lib/bpf/hashmap.h b/tools/lib/bpf/hashmap.h
index e823b35e7371..df59fd4fc95b 100644
--- a/tools/lib/bpf/hashmap.h
+++ b/tools/lib/bpf/hashmap.h
@@ -10,10 +10,9 @@
#include <stdbool.h>
#include <stddef.h>
-#ifdef __GLIBC__
-#include <bits/wordsize.h>
-#else
-#include <bits/reg.h>
+#include <limits.h>
+#ifndef __WORDSIZE
+#define __WORDSIZE (__SIZEOF_LONG__ * 8)
#endif
static inline size_t hash_bits(size_t h, int bits)