1 files changed, 240 insertions, 0 deletions
diff --git a/Give-a-warning-when-using-kabi-outside-our-stablelis.patch b/Give-a-warning-when-using-kabi-outside-our-stablelis.patch
new file mode 100644
index 0000000..d2cba8e
--- /dev/null
+++ b/Give-a-warning-when-using-kabi-outside-our-stablelis.patch
@@ -0,0 +1,240 @@
+From 895c930b1418798509a1f19706b6a1be188ad303 Mon Sep 17 00:00:00 2001
+From: Liu Yuntao <liuyuntao10@huawei.com>
+Date: Sat, 2 Jul 2022 13:59:25 +0800
+Subject: [PATCH] Give a warning when using kabi outside our stablelists.
+
+Add a script that will find requirements for your package. It can make an
+additional kabi whitelist check for you, compared with rpmbuild's builtin
+requirement scanner. You may add "%define _use_internal_dependency_generator 0"
+in your .spec file to enable this feature.
+synced from CentOS's implementation.
+---
+ find-requires       |  38 +++++++++++
+ find-requires.ksyms | 155 ++++++++++++++++++++++++++++++++++++++++++++
+ macros.kmp          |   3 +-
+ 3 files changed, 195 insertions(+), 1 deletion(-)
+ create mode 100644 find-requires
+ create mode 100644 find-requires.ksyms
+
+diff --git a/find-requires b/find-requires
+new file mode 100644
+index 0000000..b7cd825
+--- /dev/null
++++ b/find-requires
+@@ -0,0 +1,38 @@
++#!/bin/bash
++
++#
++# Auto-generate requirements for executables (both ELF and a.out) and library
++# sonames, script interpreters, and perl modules.
++#
++
++ulimit -c 0
++
++filelist=`sed "s/[]['\"*?{}]/\\\\\&/g"`
++
++[ -x /usr/lib/rpm/rpmdeps -a -n "$filelist" ] && \
++    echo $filelist | tr '[:blank:]' \\n | /usr/lib/rpm/rpmdeps --requires
++
++#
++# --- Kernel module imported symbols
++#
++# Since we don't (yet) get passed the name of the package being built, we
++# cheat a little here by looking first for a kernel, then for a kmod.
++#
++
++unset is_kmod
++
++for f in $filelist; do
++    if [ $(echo "$f" | sed -r -ne 's:^.*/lib/modules/(.*)/(.*)\.ko(\.gz|\.bz2|\.xz)?$:\2:p') ]
++    then
++        is_kmod=1;
++    elif [ $(echo "$f" | sed -r -ne 's:^.*/boot/(.*):\1:p') ]
++    then
++	unset is_kmod;
++	break;
++    fi
++done
++
++[ -x /usr/lib/rpm/__vendor/find-requires.ksyms ] && [ "$is_kmod" ] &&
++    printf "%s\n" "${filelist[@]}" | /usr/lib/rpm/__vendor/find-requires.ksyms
++
++exit 0
+diff --git a/find-requires.ksyms b/find-requires.ksyms
+new file mode 100644
+index 0000000..15cc729
+--- /dev/null
++++ b/find-requires.ksyms
+@@ -0,0 +1,155 @@
++#! /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
+diff --git a/macros.kmp b/macros.kmp
+index 5207045..df7e41e 100644
+--- a/macros.kmp
++++ b/macros.kmp
+@@ -1,7 +1,8 @@
+-# Use these macros to differentiate between RH and other KMP implementation(s).
++# Use these macros to differentiate between __vendor and other KMP implementation(s).
+ 
+ kernel_module_package_release	1
+ 
++__find_requires        /usr/lib/rpm/__vendor/find-requires
+ 
+ 
+ #kernel_module_package [ -n name ] [ -v version ] [ -r release ] 
+-- 
+2.27.0
+