rpms/redhat-rpm-config
7
0
Fork 0
Code Issues Pull Requests Releases Activity

Merge #26 Fix kernel ABI related scripts

Browse Source
This commit is contained in:
Panu Matilainen 2018-06-26 10:40:37 +00:00
commit 4d324adc62
2 changed files with 70 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
find-provides.ksyms
View File

@ -1,9 +1,24 @@
#! /bin/sh
#! /bin/bash
IFS=$'\n'
for module in $(grep -E '/lib/modules/.+\.ko$'); do
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_(.+):ksym(\2) = \1:p'
| sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p' \
| awk --non-decimal-data '{printf("ksym(%s) = 0x%08x\n", $2, $1)}' \
| LC_ALL=C sort -u
else
ELFRODATA=$(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 \
| sort -u
| awk --non-decimal-data '{printf("ksym(%s) = 0x%08s\n", $2, substr($3,($1*2)+1,8))}' \
| LC_ALL=C sort -u
fi
done

70
find-requires.ksyms
View File

@ -2,19 +2,47 @@
IFS=$'\n'
# Extract all of the symbols provided by this module.
all_provides() {
if [[ -n $(nm "$@" | sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p') ]]; then
nm "$@" \
| sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):\1\t\2:p' \
| sort -k2 -u
| sed -r -ne 's:^0*([0-9a-f]+) A __crc_(.+):0x\1 \2:p' \
| awk --non-decimal-data '{printf("0x%08x\t%s\n", $1, $2)}' \
| LC_ALL=C sort -k2,2 -u
else
ELFRODATA=$(readelf -R .rodata "$@" | awk '/0x/{printf $2$3$4$5}')
if [[ -n $(readelf -h "$@" | grep "little endian") ]]; then
RODATA=$(echo $ELFRODATA | sed 's/\(..\)\(..\)\(..\)\(..\)/\4\3\2\1/g')
else
RODATA=$ELFRODATA
fi
for sym in $(nm "$@" | sed -r -ne 's:^0*([0-9a-f]+) R __crc_(.+):0x\1 \2:p'); do
echo $sym $RODATA
done \
| awk --non-decimal-data '{printf("0x%08s\t%s\n", substr($3,($1*2)+1,8), $2)}' \
| LC_ALL=C sort -k2,2 -u
fi
}
# Extract all of the requirements of this module.
all_requires() {
for module in "$@"; do
set -- $(/sbin/modinfo -F vermagic "$module" | sed -e 's: .*::' -e q)
/sbin/modprobe --dump-modversions "$module" \
| sed -r -e 's:^0x0*::' -e 's:$:\t'"$1"':'
| awk --non-decimal-data '
BEGIN { FS = "\t" ; OFS = "\t" }
{printf("0x%08x\t%s\n", $1, $2)}' \
| sed -r -e 's:$:\t'"$1"':'
done \
| sort -k2 -u
| LC_ALL=C sort -k2,2 -u
}
# Filter out requirements fulfilled by the module itself.
mod_requires() {
LC_ALL=C join -t $'\t' -j 2 -v 1 \
<(all_requires "$@") \
<(all_provides "$@") \
| LC_ALL=C sort -k1,1 -u
}
if ! [ -e /sbin/modinfo -a -e /sbin/modprobe ]; then
@ -24,25 +52,23 @@ fi
modules=($(grep -E '/lib/modules/.+\.ko$'))
if [ ${#modules[@]} -gt 0 ]; then
symset_table=$(mktemp -t ${0##*/}.XXXXX)
/usr/lib/rpm/redhat/symset-table | sort > $symset_table
kernel=$(/sbin/modinfo -F vermagic "${modules[0]}" | sed -e 's: .*::' -e q)
join -t $'\t' -j 1 -a 2 $symset_table <(
# Filter out requirements that we fulfill ourself.
join -t $'\t' -j 2 -v 1 \
<(all_requires "${modules[@]}") \
<(all_provides "${modules[@]}") \
| awk '
# get all that kernel provides
symvers=$(mktemp -t ${0##*/}.XXXXX)
cat /usr/src/kernels/$kernel/Module.symvers | awk '
BEGIN { FS = "\t" ; OFS = "\t" }
{ print $3 "/" $2 "/" $1 }
{ print $2 "\t" $1 }
' \
| sort -u) \
| sort -u \
| awk '
{ FS = "\t" ; OFS = "\t" }
NF == 3 { print "kernel(" $2 ") = " $3
next }
{ split($1, arr, "/")
print "ksym(" arr[3] ") = " arr[2] }
'
| sed -r -e 's:$:\t'"$kernel"':' \
| LC_ALL=C sort -k1,1 -u > $symvers
# Symbols matching with the kernel get a "kernel" dependency
LC_ALL=C join -t $'\t' -j 1 $symvers <(mod_requires "${modules[@]}") | LC_ALL=C sort -u \
| awk '{ 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 $symvers <(mod_requires "${modules[@]}") | LC_ALL=C sort -u \
| awk '{ FS = "\t" ; OFS = "\t" } { print "ksym(" $1 ") = " $2 }'
fi