[livepatch-build-tools 4/4] livepatch-build: Handle newly created object files

[Pawel Wieczorkiewicz <wipawel@amazon.de>]

Up to now the livepatch-build ignores newly created object files.
When patch applies new .c file and augments its Makefile to build it
the resulting object file is not taken into account for final linking
step.

Such newly created object files can be detected by comparing patched/
and original/ directories and copied over to the output directory for
the final linking step.

Signed-off-by: Pawel Wieczorkiewicz <wipawel@amazon.de>
Reviewed-by: Andra-Irina Paraschiv <andraprs@amazon.com>
Reviewed-by: Bjoern Doebel <doebel@amazon.de>
Reviewed-by: Norbert Manthey <nmanthey@amazon.de>
---
 livepatch-build | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/livepatch-build b/livepatch-build
index 796838c..b43730c 100755
--- a/livepatch-build
+++ b/livepatch-build
@@ -146,6 +146,12 @@ function create_patch()
         fi
     done
 
+    NEW_FILES=$(comm -23 <(find patched -type f -name '*.o' | cut -f2- -d'/' | sort -u) <(find original -type f -name '*.o' | cut -f2- -d'/' | sort -u))
+    for i in $NEW_FILES; do
+        cp "patched/$i" "output/$i"
+        CHANGED=1
+    done
+
     if [[ $ERROR -ne 0 ]]; then
         die "$ERROR error(s) encountered"
     fi
-- 
2.16.5




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