spdx.bbclass: Add SPDX-specific source tree variable.

Add SPDX-specific source tree variable for recipes where $S is a subdirectory of
the source tree.

[ RB - add a comment for SPDX_S ]

(From OE-Core rev: 41784ad0588b4aba6897d6e9e0efd0314ab19747)

Signed-off-by: leimaohui <leimaohui@cn.fujitsu.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 1 deletions

diff --git a/meta/classes/spdx.bbclass b/meta/classes/spdx.bbclass
index 55ce3aff4f..bccc230d8c 100644
--- a/meta/classes/spdx.bbclass
+++ b/meta/classes/spdx.bbclass
@@ -18,13 +18,17 @@
 SPDXOUTPUTDIR = "${WORKDIR}/spdx_output_dir"
 SPDXSSTATEDIR = "${WORKDIR}/spdx_sstate_dir"
 
+# If ${S} isn't actually the top-level source directory, set SPDX_S to point at
+# the real top-level directory.
+SPDX_S ?= "${S}"
+
 python do_spdx () {
     import os, sys
     import json
 
     info = {} 
     info['workdir'] = (d.getVar('WORKDIR', True) or "")
-    info['sourcedir'] = (d.getVar('S', True) or "")
+    info['sourcedir'] = (d.getVar('SPDX_S', True) or "")
     info['pn'] = (d.getVar( 'PN', True ) or "")
     info['pv'] = (d.getVar( 'PV', True ) or "")
     info['src_uri'] = (d.getVar( 'SRC_URI', True ) or "")