[PATCH] perf: make sure that the tools/include/uapi/asm-generic directory exists

[Martin Jansa <martin.jansa@gmail.com>]

* before trying to copy unistd.h into it

* older kernels don't have uapi in tools/include and do_configure fails
  with:
  DEBUG: Executing shell function do_configure
  cp: cannot create regular file '.../perf/1.0-r9/perf-1.0/tools/include/uapi/asm-generic/unistd.h':
  No such file or directory
  WARNING: exit code 1 from a shell command.

* tools/include/uapi was added in kernel 4.8 with
  https://github.com/torvalds/linux/commit/c4b6014e8bb0c8d47fe5c71ebc604f31091e5d3f
  tools: Add copy of perf_event.h to tools/include/linux/

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
---
 meta/recipes-kernel/perf/perf.bb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/recipes-kernel/perf/perf.bb b/meta/recipes-kernel/perf/perf.bb
index 546076f84b..215d0a38f9 100644
--- a/meta/recipes-kernel/perf/perf.bb
+++ b/meta/recipes-kernel/perf/perf.bb
@@ -238,6 +238,7 @@ do_configure_prepend () {
 
     # unistd.h can be out of sync between libc-headers and the captured version in the perf source
     # so we copy it from the sysroot unistd.h to the perf unistd.h
+    [ -d ${S}/tools/include/uapi/asm-generic/ ] || mkdir -p ${S}/tools/include/uapi/asm-generic/
     cp ${STAGING_INCDIR}/asm-generic/unistd.h ${S}/tools/include/uapi/asm-generic/unistd.h
 }
 
-- 
2.17.1