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authorAndreas Schneider <asn@samba.org>2022-02-14 07:59:52 +0100
committerJule Anger <janger@samba.org>2022-03-30 08:25:14 +0000
commit7ebf719e19e5aa5701e34bcccb1c830ecf0fc795 (patch)
tree9c6fbc58020ded8c78a8d3c5097280fb98461758
parent56018a50e76521f287ac93671f18f1d741075507 (diff)
downloadsamba-7ebf719e19e5aa5701e34bcccb1c830ecf0fc795.tar.gz
builtools: Make abi_gen.sh less prone to errors
The mold linker has more hidden symbols and we would need to filter them out with nm, where objdump tells us which symbols are actually hidden. So we just need to filter out whatever is hidden. The use of awk makes it also easier to get what we want. Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Alexander Bokovoy <ab@samba.org> (cherry picked from commit 2b9917d7a3cb88cf48517e4a93a94fa3ca6ff3d9) Autobuild-User(v4-14-test): Jule Anger <janger@samba.org> Autobuild-Date(v4-14-test): Wed Mar 30 08:25:14 UTC 2022 on sn-devel-184
-rwxr-xr-xbuildtools/scripts/abi_gen.sh9
1 files changed, 7 insertions, 2 deletions
diff --git a/buildtools/scripts/abi_gen.sh b/buildtools/scripts/abi_gen.sh
index 6dd6d321f77..ddb0a7cc36f 100755
--- a/buildtools/scripts/abi_gen.sh
+++ b/buildtools/scripts/abi_gen.sh
@@ -10,9 +10,14 @@ cat <<EOF
set height 0
set width 0
EOF
-nm "$SHAREDLIB" | cut -d' ' -f2- | egrep '^[BDGTRVWS]' | grep -v @ | egrep -v ' (__bss_start|_edata|_init|_fini|_end)' | cut -c3- | sort | while read s; do
+
+# On older linker versions _init|_fini symbols are not hidden.
+objdump --dynamic-syms "${SHAREDLIB}" | \
+ awk '$0 !~ /.hidden/ {if ($2 == "g" && $3 ~ /D(F|O)/ && $4 ~ /(.bss|.rodata|.text)/) print $NF}' | \
+ sort | \
+ while read -r s; do
echo "echo $s: "
- echo p $s
+ echo p "${s}"
done
) > $GDBSCRIPT