1 files changed, 35 insertions, 0 deletions
diff --git a/tests/abicheck.sh b/tests/abicheck.sh
new file mode 100755
index 0000000..7d90c17
--- /dev/null
+++ b/tests/abicheck.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# The following checks that a given binary only defines the symbols
+# specified
+#
+# We also make sure to ignore gcov symbols included when building with
+# --coverage, which usually means the following:
+#
+# __gcov_error_file
+# __gcov_master
+# __gcov_sort_n_vals
+# __gcov_var
+#
+# And starting with gcc-9, also this one:
+#
+# mangle_path
+
+set -x
+
+if test $# != 2; then
+    echo "  Usage: $0 <binary> <symbol_file>"
+    echo "  symbol_file is a file where each line is the name of an exported symbol"
+    exit 1
+fi
+
+BINARY="$1"
+SYMBOL_FILE="$2"
+
+${NM:-nm} --dynamic --defined-only "$BINARY" | \
+    cut -f 3 -d ' ' | \
+    grep -v ^_ | \
+    grep -v ^environ | \
+    grep -v __progname | \
+    grep -v ^mangle_path | \
+    diff "$SYMBOL_FILE" -