[tip:perf/core] tools include uapi x86: Grab a copy of unistd.h

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  047726d1f9ae6b1f3a2144577ffc3a1a92ffedf4
Gitweb:     http://git.kernel.org/tip/047726d1f9ae6b1f3a2144577ffc3a1a92ffedf4
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 18 Jul 2017 17:09:21 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 18 Jul 2017 23:14:07 -0300

tools include uapi x86: Grab a copy of unistd.h

In older distros we were not including our copies of unistd_{32,64}.h,
as we were relying on the system's asm/unistd.h, and a log time ago
the files to be included were asm-{x86_64,i386}/unistd.h.

Fix it by also carrying a copy of asm/unistd.h, that will be the same
as in modern distros and will allow us to provide missing __NR_setns,
for instance, in older distros.

Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-iwmgm0c4m1ynstktzmkjh8di@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 {arch => tools/arch}/x86/include/uapi/asm/unistd.h | 0
 tools/perf/check-headers.sh                        | 1 +
 2 files changed, 1 insertion(+)

diff --git a/arch/x86/include/uapi/asm/unistd.h b/tools/arch/x86/include/uapi/asm/unistd.h
similarity index 100%
copy from arch/x86/include/uapi/asm/unistd.h
copy to tools/arch/x86/include/uapi/asm/unistd.h
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 83fe220..47abd33 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -16,6 +16,7 @@ arch/x86/include/uapi/asm/perf_regs.h
 arch/x86/include/uapi/asm/kvm.h
 arch/x86/include/uapi/asm/kvm_perf.h
 arch/x86/include/uapi/asm/svm.h
+arch/x86/include/uapi/asm/unistd.h
 arch/x86/include/uapi/asm/vmx.h
 arch/powerpc/include/uapi/asm/kvm.h
 arch/s390/include/uapi/asm/kvm.h