wayland/egl/wayland-egl-symbols-check
Daniel Stone 05fd07f427 wayland-egl: Ignore underscored symbols in ABI check
Rather than a hard-coded list of platform symbols, just ignore anything
prefaced with an underscore. This fixes breakage on ARM, which declares
several slightly different platform symbols to x86.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Fixes: 21b1f22eb0 ("wayland-egl: enhance the symbol test")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105620
Cc: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
2018-03-20 10:01:19 -05:00

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#!/bin/sh
set -eu
RET=0
LIB=${WAYLAND_EGL_LIB}
if ! test -f "$LIB"; then
echo "Test binary \"$LIB\" does not exist"
exit 99
fi
if ! test -n "$NM"; then
echo "nm environment variable not set"
exit 99
fi
AVAIL_FUNCS="$($NM -D --format=bsd --defined-only $LIB | awk '{print $3}')"
# Official ABI, taken from the header.
REQ_FUNCS="wl_egl_window_resize
wl_egl_window_create
wl_egl_window_destroy
wl_egl_window_get_attached_size
"
NEW_ABI=$(echo "$AVAIL_FUNCS" | while read func; do
echo "$func" | grep -q "^_" && continue
echo "$REQ_FUNCS" | grep -q "^$func$" && continue
echo $func
done)
if test -n "$NEW_ABI"; then
echo "New ABI detected - If intentional, update the test."
echo "$NEW_ABI"
RET=1
fi
REMOVED_ABI=$(echo "$REQ_FUNCS" | while read func; do
echo "$AVAIL_FUNCS" | grep -q "^$func$" && continue
echo $func
done)
if test -n "$REMOVED_ABI"; then
echo "ABI break detected - Required symbol(s) no longer exported!"
echo "$REMOVED_ABI"
RET=1
fi
exit $RET