diff options
Diffstat (limited to 'find-requires.ksyms')
| -rwxr-xr-x | find-requires.ksyms | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/find-requires.ksyms b/find-requires.ksyms deleted file mode 100755 index 42af85f..0000000 --- a/find-requires.ksyms +++ /dev/null @@ -1,155 +0,0 @@ -#! /bin/bash -# -# This script is called during external module building to create dependencies -# both upon the linux kernel, and on additional external modules. Symbols that -# cannot be reconciled against those provided by the kernel are assumed to be -# provided by an external module and "ksym" replaces th regular "kernel" dep. - -IFS=$'\n' - -# Extract all of the symbols provided by this module. -all_provides() { - for module in "$@"; do - tmpfile="" - if [ "x${module%.ko}" = "x${module}" ]; then - tmpfile=$(mktemp -t ${0##*/}.XXXXXX.ko) - proc_bin= - case "${module##*.}" in - xz) - proc_bin=xz - ;; - bz2) - proc_bin=bzip2 - ;; - gz) - proc_bin=gzip - ;; - esac - - [ -n "$proc_bin" ] || continue - - "$proc_bin" -d -c - < "$module" > "$tmpfile" || continue - module="$tmpfile" - fi - - if [[ -n $(nm "$module" | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p') ]]; then - nm "$module" \ - | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p' \ - | awk --non-decimal-data '{printf("%s:0x%08x\n", $2, $1)}' - else - ELFRODATA=$(readelf -R .rodata "$module" | awk '/0x/{printf $2$3$4$5}') - if [[ -n $(readelf -h "$module" | grep "little endian") ]]; then - RODATA=$(echo $ELFRODATA | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/g') - else - RODATA=$ELFRODATA - fi - for sym in $(nm "$module" | sed -r -ne 's:^0*([0-9a-f]+) R __crc_(.+):0x\1 \2:p'); do - echo $sym $RODATA - done \ - | awk --non-decimal-data '{printf("%s:0x%08s\n", $2, substr($3,($1*2)+1,8))}' - fi - - [ -z "$tmpfile" ] || rm -f -- "$tmpfile" - done \ - | LC_ALL=C sort -k1,1 -u -} - -# Extract all of the requirements of this module. -all_requires() { - for module in "$@"; do - set -- $(/sbin/modinfo -F vermagic "$module" | sed -e 's: .*::' -e q) - /sbin/modprobe --dump-modversions "$module" \ - | awk --non-decimal-data ' - BEGIN { FS = "\t" ; OFS = "\t" } - {printf("%s:0x%08x\n", $2, $1)}' \ - | sed -r -e 's:$:\t'"$1"':' - done \ - | LC_ALL=C sort -k1,1 -u -} - -# Filter out requirements fulfilled by the module itself. -mod_requires() { - LC_ALL=C join -t $'\t' -j 1 -v 1 \ - <(all_requires "$@") \ - <(all_provides "$@") \ - | LC_ALL=C sort -k1,1 -u -} - -if ! [ -e /sbin/modinfo -a -e /sbin/modprobe ]; then - cat > /dev/null - exit 0 -fi - -check_kabi() { - arch=$(uname -m) - kabi_file="/lib/modules/kabi-current/kabi_stablelist_$arch" - - # If not installed, output a warning and return (continue) - if [ ! -f "$kabi_file" ]; then - echo "" >&2 - echo "********************************************************************************" >&2 - echo "*********************** KERNEL ABI COMPATIBILITY WARNING ***********************" >&2 - echo "********************************************************************************" >&2 - echo "The kernel ABI reference files (provided by "kernel-abi-stablelists") were not found." >&2 - echo "No compatibility check was performed. Please install the kABI reference files" >&2 - echo "and rebuild if you would like to verify compatibility with kernel ABI." >&2 - echo "" >&2 - return - fi - - unset non_kabi - for symbol in "$@"; do - if ! egrep "^$symbol\$" $kabi_file >/dev/null; then - non_kabi=("${non_kabi[@]}" "$symbol") - fi - done - - if [ ${#non_kabi[@]} -gt 0 ]; then - echo "" >&2 - echo "********************************************************************************" >&2 - echo "*********************** KERNEL ABI COMPATIBILITY WARNING ***********************" >&2 - echo "********************************************************************************" >&2 - echo "The following kernel symbols are not guaranteed to remain compatible with" >&2 - echo "future kernel updates to this RHEL release:" >&2 - echo "" >&2 - for symbol in "${non_kabi[@]}"; do - printf "\t$symbol\n" >&2 - done - echo "" >&2 - echo "@VENDOR@ recommends that you consider using only official kernel ABI symbols" >&2 - echo "where possible. Requests for additions to the kernel ABI can be filed with" >&2 - echo "your partner or customer representative (component: driver-update-program)." >&2 - echo "" >&2 - fi -} - -modules=($(grep -E '/lib/modules/.+\.ko(\.gz|\.bz2|\.xz)?$')) -if [ ${#modules[@]} -gt 0 ]; then - kernel=$(/sbin/modinfo -F vermagic "${modules[0]}" | sed -e 's: .*::' -e q) - - # get all that kernel provides - symvers=$(mktemp -t ${0##*/}.XXXXX) - - cat /usr/src/kernels/$kernel/Module.symvers | awk ' - BEGIN { FS = "\t" ; OFS = "\t" } - { print $2 ":" $1 } - ' \ - | sed -r -e 's:$:\t'"$kernel"':' \ - | LC_ALL=C sort -k1,1 -u > $symvers - - # Symbols matching with the kernel get a "kernel" dependency - mod_req=$(mktemp -t mod_req.XXXXX) - mod_requires "${modules[@]}" > "$mod_req" - LC_ALL=C join -t $'\t' -j 1 $symvers "$mod_req" | LC_ALL=C sort -u \ - | awk 'BEGIN { FS = "[\t:]" ; OFS = "\t" } { print "kernel(" $1 ") = " $2 }' - - # Symbols from elsewhere get a "ksym" dependency - LC_ALL=C join -t $'\t' -j 1 -v 2 $symvers "$mod_req" | LC_ALL=C sort -u \ - | awk 'BEGIN { FS = "[\t:]" ; OFS = "\t" } { print "ksym(" $1 ") = " $2 }' - - # Check kABI if the kernel-abi-stablelists package is installed - # Do this last so we can try to output this error at the end - kabi_check_symbols=($(LC_ALL=C join -t $'\t' -j 1 $symvers "$mod_req" | LC_ALL=C sort -u \ - | awk 'BEGIN { FS = "[\t:]" ; OFS = "\t" } { print $1 }')) - check_kabi "${kabi_check_symbols[@]}" -fi |