linux_dsm_epyc7002/SynoBuildConf/_kconfig

#!/usr/bin/env bash
# Copyright (c) 2000-2020 Synology Inc. All rights reserved.

[ -z "$__INCLUDE_KCONFIG__" ] || return
readonly __INCLUDE_KCONFIG__=defined


# shellcheck source=/dev/null
source "SynoBuildConf/_platform"

kconfig_check_diff()
{
    local _plat_config="synology/synoconfigs/$PLATFORM_ABBR"

    [ -f ".debug" ] && return

    if ! diff -bu "$_plat_config" .config; then
        ERROR "There's difference between $_plat_config & .config"
        ERROR "Please reconfirm your modifications before committing."
        return 1
    fi
}

kconfig_check_syno_macro()
{
    local _m
    declare -A syno_kconfig=()

    # collect syno macros from all kconfigs
    for _m in $(find . -name "Kconfig*" -exec grep "config SYNO" {} + | cut -d' ' -f2); do
        syno_kconfig[$_m]=
    done

    # all syno macros should be defined in kconfig.
    # toolkit: ds.epyc7002-7.2.env
    # toolchain: epyc7002-gcc1220_glibc236_x86_64-GPL (Not used)
    find . \( -path './.git' -o -path './SynoBuildConf' -o -path './ds.*' -o -path './drivers/syno' \) -prune -o -type f -exec \
        grep -rohE --exclude="*.patch" "[/]*((#ifdef)|(#defined))[[:space:]]*\(?CONFIG_SYNO([[:alnum:]]|_)*" {} + \
        | grep -v "^//" \
        | awk -F 'CONFIG_' '{ print $2 }' \
        | while IFS= read -r _m
    do
        if [[ ! -v syno_kconfig[$_m] ]]; then
            ERROR "'$_m' isn't defined in kconfig"
            return 1
        fi
    done

    # '#ifndef CONFIG_SYNO*' isn't allowed.
    # toolkit: ds.epyc7002-7.2.env
    # toolchain: epyc7002-gcc1220_glibc236_x86_64-GPL (Not used)
    if find . \( -path './.git' -o -path './SynoBuildConf' -o -path './ds.*' -o -path './drivers/syno' \) -prune -o -type f -exec \
        grep -roE "ifndef[[:space:]]*CONFIG_SYNO" {} +; then
        ERROR "'#ifndef' isn't allowed with syno macros"
        return 1
    fi

    # all syno macros should start with prefix SYNO_
    # toolkit: ds.epyc7002-7.2.env
    # toolchain: epyc7002-gcc1220_glibc236_x86_64-GPL (Not used)
    if find . \( -path './.git' -o -path './SynoBuildConf' -o -path './ds.*' -o -path './drivers/syno' \) -prune -o -type f -exec \
        grep -roE "((ifdef)|(defined))[[:space:]]*\(?SYNO([[:alnum:]]|_)*" {} + \
		| grep -v -e SYNO_EXPORT_CONFIG -e SYNO_FS_SYNO_ACL; then
        ERROR "all syno macros should start with prefix SYNO_"
        return 1
    fi
}

kconfig_debug_mode()
{
    local _cfg=
    local _enabled="
        #
        # printk and dmesg options
        #
        CONFIG_DYNAMIC_DEBUG

        #
        # Memory Debugging
        #
        CONFIG_DEBUG_PAGEALLOC
        CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT
        CONFIG_PAGE_OWNER
        CONFIG_PAGE_POISONING

        #CONFIG_DEBUG_OBJECTS
        #CONFIG_DEBUG_OBJECTS_FREE
        #CONFIG_DEBUG_OBJECTS_TIMERS
        #CONFIG_DEBUG_OBJECTS_WORK
        #CONFIG_DEBUG_OBJECTS_RCU_HEAD
        #CONFIG_DEBUG_OBJECTS_PERCPU_COUNTER
        CONFIG_SLUB_DEBUG_ON
        CONFIG_SLUB_STATS
        #CONFIG_DEBUG_KMEMLEAK
        CONFIG_DEBUG_STACK_USAGE

        #CONFIG_DEBUG_VM
        #CONFIG_DEBUG_VM_VMACACHE
        #CONFIG_DEBUG_VM_RB
        #CONFIG_DEBUG_VIRTUAL
        #CONFIG_DEBUG_NOMMU_REGIONS
        #CONFIG_DEBUG_MEMORY_INIT
        #CONFIG_MEMORY_NOTIFIER_ERROR_INJECT
        #CONFIG_DEBUG_PER_CPU_MAPS
        #CONFIG_DEBUG_HIGHMEM
        #CONFIG_DEBUG_STACKOVERFLOW

        #
        # Kernel address sanitizer (Kasan)
        #
        CONFIG_KASAN
        CONFIG_KASAN_OUTLINE
        CONFIG_KASAN_VMALLOC
        #CONFIG_KASAN_INLINE

        #
        # Debug Lockups and Hangs
        #
        #CONFIG_SCHED_STACK_END_CHECK
        #CONFIG_DEBUG_TIMEKEEPING
        #CONFIG_TIMER_STATS

        #
        # Lock Debugging
        #
        CONFIG_DEBUG_SPINLOCK
        CONFIG_DEBUG_MUTEXES
        CONFIG_DEBUG_LOCK_ALLOC
        CONFIG_PROVE_LOCKING
        CONFIG_LOCK_STAT
        CONFIG_DEBUG_ATOMIC_SLEEP
        CONFIG_LOCKDEP

        #CONFIG_TRACE_IRQFLAGS
        #CONFIG_DEBUG_KOBJECT
        #CONFIG_DEBUG_KOBJECT_RELEASE
        #CONFIG_DEBUG_LIST
        #CONFIG_DEBUG_PI_LIST
        #CONFIG_DEBUG_SG
        #CONFIG_DEBUG_NOTIFIERS
        #CONFIG_DEBUG_CREDENTIALS

        #
        # RCU Debugging
        #
        #CONFIG_PROVE_RCU
        #CONFIG_PROVE_RCU_REPEATEDLY
        #CONFIG_RCU_TRACE

        #
        # Fault-injection framework
        #
        CONFIG_FAULT_INJECTION
        CONFIG_FAILSLAB
        CONFIG_FAIL_PAGE_ALLOC
        CONFIG_FAIL_MAKE_REQUEST
        CONFIG_FAIL_IO_TIMEOUT
        #CONFIG_FAIL_MMC_REQUEST
        #CONFIG_FAIL_FUTEX
        CONFIG_FAULT_INJECTION_DEBUG_FS
        CONFIG_FAIL_FUNCTION
        #CONFIG_FAULT_INJECTION_STACKTRACE_FILTER

        #CONFIG_LATENCYTOP
        #CONFIG_DEBUG_STRICT_USER_COPY_CHECKS

        #
        # Trace
        #
        #CONFIG_FUNCTION_TRACER
        #CONFIG_FUNCTION_GRAPH_TRACER
        #CONFIG_IRQSOFF_TRACER
        #CONFIG_PREEMPT_TRACER
        #CONFIG_ENABLE_DEFAULT_TRACERS
        #CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP
        #CONFIG_BRANCH_PROFILE_NONE
        #CONFIG_PROFILE_ANNOTATED_BRANCHES
        #CONFIG_PROFILE_ALL_BRANCHES
        #CONFIG_STACK_TRACER
        #CONFIG_DYNAMIC_FTRACE
        #CONFIG_FUNCTION_PROFILER
        #CONFIG_MMIOTRACE

        #
        # Btrfs
        #
        CONFIG_BTRFS_FS_RUN_SANITY_TESTS
        #CONFIG_BTRFS_DEBUG
        CONFIG_BTRFS_ASSERT
        #CONFIG_BTRFS_FS_REF_VERIFY
    "
    local _disabled="
    "

    ./scripts/config --set-val CONFIG_CONSOLE_LOGLEVEL_DEFAULT 7
    ./scripts/config --set-val CONFIG_MESSAGE_LOGLEVEL_DEFAULT 7

    while read -r _cfg; do
        if [ -z "$_cfg" ] || [[ "$_cfg" =~ .*"#".* ]]; then
            continue
        fi

        INFO "Enable $_cfg"
        ./scripts/config --enable "$_cfg"
    done <<< "$_enabled"

    while read -r _cfg; do
        if [ -z "$_cfg" ] || [[ "$_cfg" =~ .*"#".* ]]; then
            continue
        fi

        INFO "Disable $_cfg"
        ./scripts/config --disable "$_cfg"
    done <<< "$_disabled"

    # disable KASAN for non-x64 platform due to MTD size
    if [ "$PLATFORM_FAMILY" != "SYNOPLAT_F_X86_64" ]; then
        ./scripts/config --disable CONFIG_KASAN
        ./scripts/config --disable CONFIG_DEBUG_SPINLOCK
        ./scripts/config --disable CONFIG_DEBUG_MUTEXES
        ./scripts/config --disable CONFIG_DEBUG_LOCK_ALLOC
        ./scripts/config --disable CONFIG_PROVE_LOCKING
        ./scripts/config --disable CONFIG_LOCK_STAT
        ./scripts/config --disable CONFIG_DEBUG_ATOMIC_SLEEP
        ./scripts/config --disable CONFIG_LOCKDEP
    fi
}

kconfig_generate()
{
    if [ -z "$PLATFORM_ABBR" ]; then
        ERROR "environment variable 'PLATFORM_ABBR' isn't assigned"
        return 1
    fi

    cp -f "synology/synoconfigs/$PLATFORM_ABBR" .config

    if [ -f ".debug" ]; then
        INFO "File '.debug' is detected. Configured as debug mode."
        kconfig_debug_mode
        make olddefconfig
    else
        make oldconfig
    fi
}

kconfig_check_rule()
{
    if ! (cd synology/synoconfigs-spec/ || return 1; rake test) > /dev/null; then
        ERROR "kernel configs don't match the rules."
        ERROR "please check them with 'rake test' in synology/synoconfigs-spec"
        return 1
    fi
}