tools/testing/selftests/vm/check_config.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Probe for libraries and create header files to record the results. Both C
   5 # header files and Makefile include fragments are created.
   6
   7 OUTPUT_H_FILE=local_config.h
   8 OUTPUT_MKFILE=local_config.mk
   9
  10 # libhugetlbfs
  11 tmpname=$(mktemp)
  12 tmpfile_c=${tmpname}.c
  13 tmpfile_o=${tmpname}.o
  14
  15 echo "#include <sys/types.h>"        > $tmpfile_c
  16 echo "#include <hugetlbfs.h>"       >> $tmpfile_c
  17 echo "int func(void) { return 0; }" >> $tmpfile_c
  18
  19 CC=${1:?"Usage: $0 <compiler> # example compiler: gcc"}
  20 $CC -c $tmpfile_c -o $tmpfile_o >/dev/null 2>&1
  21
  22 if [ -f $tmpfile_o ]; then
  23     echo "#define LOCAL_CONFIG_HAVE_LIBHUGETLBFS 1" > $OUTPUT_H_FILE
  24     echo "HMM_EXTRA_LIBS = -lhugetlbfs"             > $OUTPUT_MKFILE
  25 else
  26     echo "// No libhugetlbfs support found"      > $OUTPUT_H_FILE
  27     echo "# No libhugetlbfs support found, so:"  > $OUTPUT_MKFILE
  28     echo "HMM_EXTRA_LIBS = "                    >> $OUTPUT_MKFILE
  29 fi
  30
  31 rm ${tmpname}.*