[coreboot-gerrit] [S] Change in coreboot[master]: util/chromeos/gen_test_hwid.sh: Replace usage of hexdump

[Michał Żygowski (Code Review)]

Michał Żygowski has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/68133 )

Change subject: util/chromeos/gen_test_hwid.sh: Replace usage of hexdump
......................................................................

util/chromeos/gen_test_hwid.sh: Replace usage of hexdump

Hexdump command is not available in coreboot-sdk. Replace it with
equivalent implementation using commands that are present in the
container.

TEST=Passed "VP46XX" as prefix variable and it produced the same
crc32 result before and after the change.

Signed-off-by: Michał Żygowski 
Change-Id: Icad93933335b8c5ebd8fee74cc9aaed36bb56482
---
M util/chromeos/gen_test_hwid.sh
1 file changed, 18 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/68133/1

diff --git a/util/chromeos/gen_test_hwid.sh b/util/chromeos/gen_test_hwid.sh
index 9dfbce5..5599806 100755
--- a/util/chromeos/gen_test_hwid.sh
+++ b/util/chromeos/gen_test_hwid.sh
@@ -13,7 +13,7 @@
   local prefix="$(echo "${board}" | tr a-z A-Z) TEST"
   # gzip has second-to-last 4 bytes in CRC32.
   local crc32="$(printf "${prefix}" | gzip -1 | tail -c 8 | head -c 4 | \
-		 hexdump -e '1/4 "%04u" ""' | tail -c 4)"
+		 od -An -vtu4 | xargs | tr -d '\n' | tail -c 4)"

echo "${prefix}" "${crc32}"
 }