nsdeps 1.9 KB

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  1. #!/bin/sh
  2. # SPDX-License-Identifier: GPL-2.0
  3. # Linux kernel symbol namespace import generator
  4. #
  5. # This script requires a minimum spatch version.
  6. SPATCH_REQ_VERSION="1.0.4"
  7. DIR="$(dirname $(readlink -f $0))/.."
  8. SPATCH="`which ${SPATCH:=spatch}`"
  9. if [ ! -x "$SPATCH" ]; then
  10. echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
  11. exit 1
  12. fi
  13. SPATCH_REQ_VERSION_NUM=$(echo $SPATCH_REQ_VERSION | ${DIR}/scripts/ld-version.sh)
  14. SPATCH_VERSION=$($SPATCH --version | head -1 | awk '{print $3}')
  15. SPATCH_VERSION_NUM=$(echo $SPATCH_VERSION | ${DIR}/scripts/ld-version.sh)
  16. if [ "$SPATCH_VERSION_NUM" -lt "$SPATCH_REQ_VERSION_NUM" ] ; then
  17. echo "spatch needs to be version $SPATCH_REQ_VERSION or higher"
  18. exit 1
  19. fi
  20. if [ "$KBUILD_EXTMOD" ]; then
  21. src_prefix=
  22. else
  23. src_prefix=$srctree/
  24. fi
  25. generate_deps_for_ns() {
  26. $SPATCH --very-quiet --in-place --sp-file \
  27. $srctree/scripts/coccinelle/misc/add_namespace.cocci -D nsdeps -D ns=$1 $2
  28. }
  29. generate_deps() {
  30. local mod=${1%.ko:}
  31. shift
  32. local namespaces="$*"
  33. local mod_source_files="`cat $mod.mod | sed -n 1p \
  34. | sed -e 's/\.o/\.c/g' \
  35. | sed "s|[^ ]* *|${src_prefix}&|g"`"
  36. for ns in $namespaces; do
  37. echo "Adding namespace $ns to module $mod.ko."
  38. generate_deps_for_ns $ns "$mod_source_files"
  39. # sort the imports
  40. for source_file in $mod_source_files; do
  41. sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp
  42. offset=$(wc -l ${source_file}.tmp | awk '{print $1;}')
  43. cat $source_file | grep MODULE_IMPORT_NS | LANG=C sort -u >> ${source_file}.tmp
  44. tail -n +$((offset +1)) ${source_file} | grep -v MODULE_IMPORT_NS >> ${source_file}.tmp
  45. if ! diff -q ${source_file} ${source_file}.tmp; then
  46. mv ${source_file}.tmp ${source_file}
  47. else
  48. rm ${source_file}.tmp
  49. fi
  50. done
  51. done
  52. }
  53. while read line
  54. do
  55. generate_deps $line
  56. done < $MODULES_NSDEPS