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kpatch-build: fix find_special_section_data with blank AWK_OPTIONS

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If $AWK_OPTIONS are blank gawk would treat "" as a blank script
resulting in none of the special struct being detected.

Fixes: 1330dcc "create-diff-object: add ORC section support"
Signed-off-by: Artem Savkov <asavkov@redhat.com>
This commit is contained in:
Artem Savkov 2018-06-15 14:17:02 +02:00
parent 63582367f4
commit fda7c87a70
1 changed files with 3 additions and 1 deletions
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kpatch-build/kpatch-build
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@ -262,8 +262,10 @@ find_special_section_data() {
[[ "$CONFIG_PARAVIRT" -eq 0 ]] && AWK_OPTIONS="-vskip_p=1"
[[ "$CONFIG_UNWINDER_ORC" -eq 0 ]] && AWK_OPTIONS="$AWK_OPTIONS -vskip_o=1"
# If $AWK_OPTIONS are blank gawk would treat "" as a blank script
# shellcheck disable=SC2086
SPECIAL_VARS="$(readelf -wi "$VMLINUX" |
gawk --non-decimal-data "$AWK_OPTIONS" '
gawk --non-decimal-data $AWK_OPTIONS '
BEGIN { a = b = p = e = o = 0 }
# Set state if name matches