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-rw-r--r--tools/testing/selftests/vm/check_config.sh31
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/vm/check_config.sh b/tools/testing/selftests/vm/check_config.sh
new file mode 100644
index 000000000000..079c8a40b85d
--- /dev/null
+++ b/tools/testing/selftests/vm/check_config.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Probe for libraries and create header files to record the results. Both C
+# header files and Makefile include fragments are created.
+
+OUTPUT_H_FILE=local_config.h
+OUTPUT_MKFILE=local_config.mk
+
+# libhugetlbfs
+tmpname=$(mktemp)
+tmpfile_c=${tmpname}.c
+tmpfile_o=${tmpname}.o
+
+echo "#include <sys/types.h>" > $tmpfile_c
+echo "#include <hugetlbfs.h>" >> $tmpfile_c
+echo "int func(void) { return 0; }" >> $tmpfile_c
+
+CC=${1:?"Usage: $0 <compiler> # example compiler: gcc"}
+$CC -c $tmpfile_c -o $tmpfile_o >/dev/null 2>&1
+
+if [ -f $tmpfile_o ]; then
+ echo "#define LOCAL_CONFIG_HAVE_LIBHUGETLBFS 1" > $OUTPUT_H_FILE
+ echo "HMM_EXTRA_LIBS = -lhugetlbfs" > $OUTPUT_MKFILE
+else
+ echo "// No libhugetlbfs support found" > $OUTPUT_H_FILE
+ echo "# No libhugetlbfs support found, so:" > $OUTPUT_MKFILE
+ echo "HMM_EXTRA_LIBS = " >> $OUTPUT_MKFILE
+fi
+
+rm ${tmpname}.*