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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-17 11:23:41 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-04-19 13:01:42 -0300 |
| commit | 379d61b1c7d42512cded04d372f15a7e725db9e1 (patch) | |
| tree | c73b3eed9cccd2ae29075f848b7a274606bc5b46 /tools/include | |
| parent | 7909675daf55e8222b40e5e162bbc9d633bd5bac (diff) | |
| download | linux-379d61b1c7d42512cded04d372f15a7e725db9e1.tar.bz2 | |
tools include: Introduce linux/bug.h, from the kernel sources
With just what we will need in the upcoming changesets, the
BUILD_BUG_ON_ZERO() definition.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-lw8zg7x6ttwcvqhp90mwe3vo@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/linux/bug.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tools/include/linux/bug.h b/tools/include/linux/bug.h new file mode 100644 index 000000000000..8e4a4f49135d --- /dev/null +++ b/tools/include/linux/bug.h @@ -0,0 +1,10 @@ +#ifndef _TOOLS_PERF_LINUX_BUG_H +#define _TOOLS_PERF_LINUX_BUG_H + +/* Force a compilation error if condition is true, but also produce a + result (of value 0 and type size_t), so the expression can be used + e.g. in a structure initializer (or where-ever else comma expressions + aren't permitted). */ +#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) + +#endif /* _TOOLS_PERF_LINUX_BUG_H */ |