[PATCH v1 3/4] livepatch-gcc: Ignore buildid.o

[Mihails Strasuns <mstrasun@xxxxxxxxxx>]

From: Raphael Ning <raphning@xxxxxxxxxx>

Not all .o files generated by the Xen build need to be passed to
create-diff-object for analysis. The latest example is:

 Run create-diff-object on xen/arch/x86/efi/buildid.o
 Open base
 /usr/libexec/livepatch-build-tools/create-diff-object: ERROR: buildid.o: 
kpatch_create_section_list: 77: elf_getshdrnum

This file is special, as it does not contain any sections. It is
generated by objcopy from a magic string of bytes (see Xen commit
eee5909e9d1e x86/EFI: use less crude a way of generating the build ID),
which probably will never change. Therefore, livepatch-gcc should not
copy it to the output directory.

Signed-off-by: Raphael Ning <raphning@xxxxxxxxxx>
Reviewed-by: Bjoern Doebel <doebel@xxxxxxxxx>
Reviewed-by: Martin Pohlack <mpohlack@xxxxxxxxx>

CR: https://code.amazon.com/reviews/CR-63147772
---
 livepatch-gcc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/livepatch-gcc b/livepatch-gcc
index 91333d5..e72cc8d 100755
--- a/livepatch-gcc
+++ b/livepatch-gcc
@@ -65,6 +65,7 @@ elif [[ "$TOOLCHAINCMD" =~ $OBJCOPY_RE ]] ; then
         version.o|\
         debug.o|\
         efi/check.o|\
+        buildid.o|\
         .*.o)
             ;;
         *.o)
-- 
2.38.1




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