diff mbox series

[v2,2/3] livepatch-build-tools: remove usage of gawk

Message ID 20231128092152.35039-3-roger.pau@citrix.com (mailing list archive)
State New, archived
Headers show
Series livepatch-build-tools: fixes for non GNU tools and alignment | expand

Commit Message

Roger Pau Monne Nov. 28, 2023, 9:21 a.m. UTC
And instead use plain awk.

Since plain awk cannot do the conversion from hex to decimal, use the shell
(bash) printf to convert the (maybe) hexadecimal output of readelf.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
---
Changes since v1:
 - Use shell printf to convert.
---
 livepatch-build | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/livepatch-build b/livepatch-build
index 305644037ee7..e2ccce4f7fd7 100755
--- a/livepatch-build
+++ b/livepatch-build
@@ -423,14 +423,15 @@  if [ "${SKIP}" != "build" ]; then
     echo "Reading special section data"
     # Using xen-syms built in the previous step by build_full().
     SPECIAL_VARS=$(readelf -wi "$OUTPUT/xen-syms" |
-               gawk --non-decimal-data '
+               awk '
                BEGIN { a = b = e = 0 }
                a == 0 && /DW_AT_name.* alt_instr/ {a = 1; next}
                b == 0 && /DW_AT_name.* bug_frame/ {b = 1; next}
                e == 0 && /DW_AT_name.* exception_table_entry/ {e = 1; next}
-               a == 1 {printf("export ALT_STRUCT_SIZE=%d\n", $4); a = 2}
-               b == 1 {printf("export BUG_STRUCT_SIZE=%d\n", $4); b = 2}
-               e == 1 {printf("export EX_STRUCT_SIZE=%d\n", $4); e = 2}
+               # Use shell printf to (possibly) convert from hex to decimal
+               a == 1 {printf("export ALT_STRUCT_SIZE=`printf \"%%d\" \"%s\"`\n", $4); a = 2}
+               b == 1 {printf("export BUG_STRUCT_SIZE=`printf \"%%d\" \"%s\"`\n", $4); b = 2}
+               e == 1 {printf("export EX_STRUCT_SIZE=`printf \"%%d\" \"%s\"`\n", $4); e = 2}
                a == 2 && b == 2 && e == 2 {exit}')
     [[ -n $SPECIAL_VARS ]] && eval "$SPECIAL_VARS"
     if [[ -z $ALT_STRUCT_SIZE ]] || [[ -z $BUG_STRUCT_SIZE ]] || [[ -z $EX_STRUCT_SIZE ]]; then