Imported Upstream version 1.7.6

[platform/upstream/harfbuzz.git] / src / check-symbols.sh

diff --git a/src/check-symbols.sh b/src/check-symbols.sh
index ba09ba1..bfc93b3 100755 (executable)
--- a/src/check-symbols.sh
+++ b/src/check-symbols.sh
@@ -4,8 +4,10 @@ LC_ALL=C
 export LC_ALL
 
 test -z "$srcdir" && srcdir=.
+test -z "$libs" && libs=.libs
 stat=0
 
+IGNORED_SYMBOLS='_fini\|_init\|_fdata\|_ftext\|_fbss\|__bss_start\|__bss_start__\|__bss_end__\|_edata\|_end\|_bss_end__\|__end__\|__gcov_flush\|llvm_.*'
 
 if which nm 2>/dev/null >/dev/null; then
        :
@@ -14,29 +16,46 @@ else
        exit 77
 fi
 
-echo "Checking that we are not exposing internal symbols"
 tested=false
-for suffix in so dylib; do
-       so=.libs/libharfbuzz.$suffix
-       if ! test -f "$so"; then continue; fi
-
-       EXPORTED_SYMBOLS="`nm "$so" | grep ' [BCDGINRSTVW] ' | grep -v ' _fini\>\| _init\>\| _fdata\>\| _ftext\>\| _fbss\>\| __bss_start\>\| __bss_start__\>\| __bss_end__\>\| _edata\>\| _end\>\| _bss_end__\>\| __end__\>\| __gcov_flush\>\| ___gcov_flush\>\| llvm_\| _llvm_' | cut -d' ' -f3`"
-
-       prefix=`basename "$so" | sed 's/libharfbuzz/hb/; s/-/_/g; s/[.].*//'`
-
-       # On mac, C symbols are prefixed with _
-       if test $suffix = dylib; then prefix="_$prefix"; fi
-
-       echo "Processing $so"
-       if echo "$EXPORTED_SYMBOLS" | grep -v "^${prefix}_"; then
-               echo "Ouch, internal symbols exposed"
-               stat=1
-       fi
-
-       tested=true
+for soname in harfbuzz harfbuzz-subset harfbuzz-icu harfbuzz-gobject; do
+       for suffix in so dylib; do
+               so=$libs/lib$soname.$suffix
+               if ! test -f "$so"; then continue; fi
+
+               # On macOS, C symbols are prefixed with _
+               symprefix=
+               if test $suffix = dylib; then symprefix=_; fi
+
+               EXPORTED_SYMBOLS="`nm "$so" | grep ' [BCDGINRSTVW] .' | grep -v " $symprefix\\($IGNORED_SYMBOLS\\>\\)" | cut -d' ' -f3 | c++filt`"
+
+               prefix=$symprefix`basename "$so" | sed 's/libharfbuzz/hb/; s/-/_/g; s/[.].*//'`
+
+               echo
+               echo "Checking that $so does not expose internal symbols"
+               if echo "$EXPORTED_SYMBOLS" | grep -v "^${prefix}\(_\|$\)"; then
+                       echo "Ouch, internal symbols exposed"
+                       stat=1
+               fi
+
+               def=$soname.def
+               if ! test -f "$def"; then
+                       echo "'$def' not found; skipping"
+               else
+                       echo
+                       echo "Checking that $so has the same symbol list as $def"
+                       {
+                               echo EXPORTS
+                               echo "$EXPORTED_SYMBOLS" | sed -e "s/^${symprefix}hb/hb/g"
+                               # cheat: copy the last line from the def file!
+                               tail -n1 "$def"
+                       } | c++filt | diff "$def" - >&2 || stat=1
+               fi
+
+               tested=true
+       done
 done
 if ! $tested; then
-       echo "check-symbols.sh: no shared library found; skipping test"
+       echo "check-symbols.sh: no shared libraries found; skipping test"
        exit 77
 fi