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Allow use of hashmap in perf. Modify perf's check-headers.sh script to
check that the files are kept in sync, in the same way kernel headers
are checked. This will warn if they are out of sync at the start of a
perf build.
Committer note:
This starts out of synch as a fix went thru the bpf tree, namely the one
removing the needless libbpf_internal.h include in hashmap.h.
There is also another change related to __WORDSIZE, that as is in
tools/lib/bpf/hashmap.h causes the tools/perf/ build to fail in systems
such as Alpine Linus, that uses the Musl libc, so we need an alternative
way of having __WORDSIZE available, use the one used by
tools/include/linux/bitops.h, that builds in all the systems I have
build containers for.
These differences will be resolved at some point, so keep the warning in
check-headers.sh as a reminder.
Signed-off-by: Ian Rogers <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Cong Wang <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Fastabend <[email protected]>
Cc: John Garry <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Kim Phillips <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Yonghong Song <[email protected]>
Cc: [email protected]
Cc: kp singh <[email protected]>
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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