From 508b8f29922ab88923d83bdb21a21e8a78a526d1 Mon Sep 17 00:00:00 2001 From: Adrian Calianu Date: Mon, 16 May 2016 17:21:32 +0200 Subject: linux/cfg: add config fragments to disable debug features New config fragments created to: - disable debugging on target. Trying to disable any type of debugging that can affect performances on target. - disable profiling. Profiling is mainly based on hooks which should not affect the performance on target. This options allow to test if profiling does affect the performance or not. - enable PreemptRT Low Latency Desktop - disable erratum for new PowerPC revisions targets Signed-off-by: Adrian Calianu Signed-off-by: Martin Borg --- recipes-kernel/linux/files/cfg/debug_off.cfg | 48 ++++++++++++++++++++++ recipes-kernel/linux/files/cfg/ppc/erratum_off.cfg | 2 + recipes-kernel/linux/files/cfg/profiling_off.cfg | 36 ++++++++++++++++ recipes-kernel/linux/files/cfg/rt_lld.cfg | 7 ++++ 4 files changed, 93 insertions(+) create mode 100644 recipes-kernel/linux/files/cfg/debug_off.cfg create mode 100644 recipes-kernel/linux/files/cfg/ppc/erratum_off.cfg create mode 100644 recipes-kernel/linux/files/cfg/profiling_off.cfg create mode 100644 recipes-kernel/linux/files/cfg/rt_lld.cfg diff --git a/recipes-kernel/linux/files/cfg/debug_off.cfg b/recipes-kernel/linux/files/cfg/debug_off.cfg new file mode 100644 index 0000000..7b4405c --- /dev/null +++ b/recipes-kernel/linux/files/cfg/debug_off.cfg @@ -0,0 +1,48 @@ +CONFIG_EMBEDDED=n +CONFIG_EXPERT=n +CONFIG_KGDB=n +CONFIG_HAVE_ARCH_KGDB=n +CONFIG_KGDB_KDB=n +CONFIG_DEBUGGER=n +CONFIG_DEBUG_KERNEL=n +CONFIG_PPC_ADV_DEBUG_REGS=n +CONFIG_HAVE_DMA_API_DEBUG=n +CONFIG_DEBUG_FS=n +CONFIG_PM_DEBUG=n +CONFIG_HAVE_DEBUG_KMEMLEAK=n +CONFIG_HAVE_DEBUG_STACKOVERFLOW=n +CONFIG_SCHED_DEBUG=n +CONFIG_TRACE_IRQFLAGS=n +CONFIG_STACKTRACE=n +CONFIG_DEBUG_SHIRQ=n +CONFIG_DETECT_SOFTLOCKUP=n +CONFIG_LOCKUP_DETECTOR=n +CONFIG_HARDLOCKUP_DETECTOR=n +CONFIG_BOOTPARAM_HARDLOCKUP_ENABLED=n +CONFIG_DETECT_HUNG_TASK=n +CONFIG_SCHEDSTATS=n +CONFIG_TIMER_STATS=n +CONFIG_DEBUG_OBJECTS=n +CONFIG_DEBUG_OBJECTS_SELFTEST=n +CONFIG_DEBUG_OBJECTS_FREE=n +CONFIG_DEBUG_OBJECTS_TIMERS=n +CONFIG_DEBUG_SLAB=n +CONFIG_DEBUG_SPINLOCK=n +CONFIG_DEBUG_MUTEXES=n +CONFIG_DEBUG_SPINLOCK_SLEEP=n +CONFIG_DEBUG_BUGVERBOSE=n +CONFIG_DEBUG_INFO=n +CONFIG_DEBUG_VM=n +CONFIG_DEBUG_VIRTUAL=n +CONFIG_DEBUG_WRITECOUNT=n +CONFIG_DEBUG_MEMORY_INIT=n +CONFIG_DEBUG_LIST=n +CONFIG_ARCH_WANT_FRAME_POINTERS=n +CONFIG_FRAME_POINTER=n +CONFIG_DEBUG_PAGEALLOC=n +CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=n +CONFIG_FSL_DPAA_ETH_DEBUGFS=n +CONFIG_FSL_BMAN_DEBUGFS=n +CONFIG_FSL_QMAN_DEBUGFS=n +CONFIG_DEBUG_PREEMPT=n +CONFIG_JUMP_LABEL=y diff --git a/recipes-kernel/linux/files/cfg/ppc/erratum_off.cfg b/recipes-kernel/linux/files/cfg/ppc/erratum_off.cfg new file mode 100644 index 0000000..2ab62f0 --- /dev/null +++ b/recipes-kernel/linux/files/cfg/ppc/erratum_off.cfg @@ -0,0 +1,2 @@ +CONFIG_FSL_ERRATUM_A_004801=n +CONFIG_FSL_ERRATUM_A_005337=n diff --git a/recipes-kernel/linux/files/cfg/profiling_off.cfg b/recipes-kernel/linux/files/cfg/profiling_off.cfg new file mode 100644 index 0000000..174b9e4 --- /dev/null +++ b/recipes-kernel/linux/files/cfg/profiling_off.cfg @@ -0,0 +1,36 @@ +CONFIG_KALLSYMS=n +CONFIG_HIGH_RES_TIMERS=n +CONFIG_TRACEPOINTS=n +CONFIG_FTRACE=n +CONFIG_PERF_EVENTS=n +CONFIG_EVENT_TRACING=n +CONFIG_KPROBES=n +CONFIG_KRETPROBES=n +CONFIG_FUNCTION_TRACER=n +CONFIG_FUNCTION_GRAPH_TRACER=n +CONFIG_IRQSOFF_TRACER=n +CONFIG_PREEMPT_TRACER=n +CONFIG_SCHED_TRACER=n +CONFIG_NOP_TRACER=n +CONFIG_CONTEXT_SWITCH_TRACER=n +CONFIG_GENERIC_TRACER=n +CONFIG_TRACER_MAX_TRACE=n +CONFIG_TRACER_SNAPSHOT=n +CONFIG_STACK_TRACER=n +CONFIG_EXPERT=n +CONFIG_PROC_FS=n +CONFIG_DEBUG_FS=n +CONFIG_NO_HZ=n +CONFIG_HPET_TIMER=n +CONFIG_CPU_FREQ=n +CONFIG_CPU_FREQ_GOV_ONDEMAND=n +CONFIG_TIMER_STATS=n +CONFIG_TRACING=n +CONFIG_X86_MSR=n +CONFIG_DEBUG_INFO=n +CONFIG_RELAY=n +CONFIG_MODULE_UNLOAD=n +CONFIG_PROFILING=n +CONFIG_OPROFILE=n +CONFIG_PROFILE_ALL_BRANCHES=n +CONFIG_OPROFILE_NMI_TIMER=n diff --git a/recipes-kernel/linux/files/cfg/rt_lld.cfg b/recipes-kernel/linux/files/cfg/rt_lld.cfg new file mode 100644 index 0000000..ec761f9 --- /dev/null +++ b/recipes-kernel/linux/files/cfg/rt_lld.cfg @@ -0,0 +1,7 @@ +CONFIG_PREEMPT=y +CONFIG_HAVE_PREEMPT_LAZY=y +CONFIG_PREEMPT__LL=y +CONFIG_HZ_1000=y +CONFIG_HZ=1000 +ARCH_USES_GETTIMEOFFSET=y +CONFIG_NO_HZ_FULL=y -- cgit v1.2.3-54-g00ecf