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Improve Provides: kernel() generation for built-in modules 

After split of the kmods into a separate packages (like kernel-modules
and kernel-modules-extra), kernel() provides for the inbox kmods are generated
for incorrect package, as they were handled by kabi.sh that uses symvers
as a basis for the dependency list.  Stop using it for kmod dependencies
(but continue using it for the symbols provided by vmlinux itself) and
employ find-provides.sh for that purpose.

* kabi.sh: Filter only those symbols that are exported by vmlinux.
* find-provides.ksyms: Generate tags with the "kernel" prefix for kernel
modules inside /lib/modules/[1-9][^/]*/kernel.

Resolves: #1942563
Resolves: #1975927
Resolves: #2002887
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
This commit is contained in:
Eugene Syromiatnikov 2021-11-17 16:29:49 +01:00
parent e607db68c7
commit 6bc05248ec
2 changed files with 11 additions and 3 deletions
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9
find-provides.ksyms
View File

@ -3,6 +3,11 @@
IFS=$'\n'
for module in $(grep -E '/lib/modules/.+\.ko(\.gz|\.bz2|\.xz)?$') "$@"; do
dep_pfx="ksym"
# For built-in kmods, "kernel()" syntax is used instead of "ksym()"
printf "%s" "$module" | grep -v "^${RPM_BUILD_ROOT}/\?lib/modules/[1-9][^/]*/kernel" > /dev/null \
|| dep_pfx="kernel"
tmpfile=""
if [ "x${module%.ko}" = "x${module}" ]; then
tmpfile=$(mktemp -t ${0##*/}.XXXXXX.ko)
@ -28,7 +33,7 @@ for module in $(grep -E '/lib/modules/.+\.ko(\.gz|\.bz2|\.xz)?$') "$@"; 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_(.+):0x\1 \2:p' \
| awk --non-decimal-data '{printf("ksym(%s) = 0x%08x\n", $2, $1)}' \
| awk --non-decimal-data '{printf("'"${dep_pfx}"'(%s) = 0x%08x\n", $2, $1)}' \
| LC_ALL=C sort -u
else
ELFRODATA=$(readelf -R .rodata $module | awk '/0x/{printf $2$3$4$5}')
@ -40,7 +45,7 @@ for module in $(grep -E '/lib/modules/.+\.ko(\.gz|\.bz2|\.xz)?$') "$@"; do
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("ksym(%s) = 0x%08s\n", $2, substr($3,($1*2)+1,8))}' \
| awk --non-decimal-data '{printf("'"${dep_pfx}"'(%s) = 0x%08s\n", $2, substr($3,($1*2)+1,8))}' \
| LC_ALL=C sort -u
fi

5
kabi.sh
View File

@ -9,5 +9,8 @@ IFS=$'\n'
for symvers in $(grep -E '(/boot/symvers-.*|/lib/modules/[1-9].*/symvers)\.gz') "$@";
do
zcat $symvers | awk ' {print "kernel(" $2 ") = " $1 }'
# We generate dependencies only for symbols exported by vmlinux itself
# and not for kmods here as they are spread across subpackages,
# so Provides: generation for kmods is handled by find-provides.ksyms.
zcat $symvers | awk '/[^ ]* [^ ]* vmlinux .*/ { print "kernel(" $2 ") = " $1 }'
done