Feature status on arc architecture — The Linux Kernel 5.18.5-gnu-1 documentation

# Feature status on arc architecture

Subsystem | Feature | Kconfig | Status | Description
--- | --- | --- | --- | ---
core | cBPF-JIT | HAVE_CBPF_JIT | TODO | arch supports cBPF JIT optimizations
core | eBPF-JIT | HAVE_EBPF_JIT | TODO | arch supports eBPF JIT optimizations
core | generic-idle-thread | GENERIC_SMP_IDLE_THREAD | ok | arch makes use of the generic SMP idle thread facility
core | jump-labels | HAVE_ARCH_JUMP_LABEL | ok | arch supports live patched, high efficiency branches
core | thread-info-in-task | THREAD_INFO_IN_TASK | TODO | arch makes use of the core kernel facility to embedd thread_info in task_struct
core | tracehook | HAVE_ARCH_TRACEHOOK | ok | arch supports tracehook (ptrace) register handling APIs
debug | debug-vm-pgtable | ARCH_HAS_DEBUG_VM_PGTABLE | ok | arch supports pgtable tests for semantics compliance
debug | gcov-profile-all | ARCH_HAS_GCOV_PROFILE_ALL | TODO | arch supports whole-kernel GCOV code coverage profiling
debug | KASAN | HAVE_ARCH_KASAN | TODO | arch supports the KASAN runtime memory checker
debug | kcov | ARCH_HAS_KCOV | TODO | arch supports kcov for coverage-guided fuzzing
debug | kgdb | HAVE_ARCH_KGDB | ok | arch supports the kGDB kernel debugger
debug | kmemleak | HAVE_DEBUG_KMEMLEAK | ok | arch supports the kernel memory leak detector
debug | kprobes | HAVE_KPROBES | ok | arch supports live patched kernel probe
debug | kprobes-on-ftrace | HAVE_KPROBES_ON_FTRACE | TODO | arch supports combined kprobes and ftrace live patching
debug | kretprobes | HAVE_KRETPROBES | ok | arch supports kernel function-return probes
debug | optprobes | HAVE_OPTPROBES | TODO | arch supports live patched optprobes
debug | stackprotector | HAVE_STACKPROTECTOR | TODO | arch supports compiler driven stack overflow protection
debug | uprobes | ARCH_SUPPORTS_UPROBES | TODO | arch supports live patched user probes
debug | user-ret-profiler | HAVE_USER_RETURN_NOTIFIER | TODO | arch supports user-space return from system call profiler
io | dma-contiguous | HAVE_DMA_CONTIGUOUS | TODO | arch supports the DMA CMA (continuous memory allocator)
locking | cmpxchg-local | HAVE_CMPXCHG_LOCAL | TODO | arch supports the this_cpu_cmpxchg() API
locking | lockdep | LOCKDEP_SUPPORT | ok | arch supports the runtime locking correctness debug facility
locking | queued-rwlocks | ARCH_USE_QUEUED_RWLOCKS | TODO | arch supports queued rwlocks
locking | queued-spinlocks | ARCH_USE_QUEUED_SPINLOCKS | TODO | arch supports queued spinlocks
perf | kprobes-event | HAVE_REGS_AND_STACK_ACCESS_API | TODO | arch supports kprobes with perf events
perf | perf-regs | HAVE_PERF_REGS | TODO | arch supports perf events register access
perf | perf-stackdump | HAVE_PERF_USER_STACK_DUMP | TODO | arch supports perf events stack dumps
sched | membarrier-sync-core | ARCH_HAS_MEMBARRIER_SYNC_CORE | TODO | arch supports core serializing membarrier
sched | numa-balancing | ARCH_SUPPORTS_NUMA_BALANCING | — | arch supports NUMA balancing
seccomp | seccomp-filter | HAVE_ARCH_SECCOMP_FILTER | TODO | arch supports seccomp filters
time | arch-tick-broadcast | ARCH_HAS_TICK_BROADCAST | TODO | arch provides tick_broadcast()
time | clockevents | !LEGACY_TIMER_TICK | ok | arch support generic clock events
time | context-tracking | HAVE_CONTEXT_TRACKING | TODO | arch supports context tracking for NO_HZ_FULL
time | irq-time-acct | HAVE_IRQ_TIME_ACCOUNTING | TODO | arch supports precise IRQ time accounting
time | virt-cpuacct | HAVE_VIRT_CPU_ACCOUNTING | TODO | arch supports precise virtual CPU time accounting
vm | batch-unmap-tlb-flush | ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH | TODO | arch supports deferral of TLB flush until multiple pages are unmapped
vm | ELF-ASLR | ARCH_HAS_ELF_RANDOMIZE | TODO | arch randomizes the stack, heap and binary images of ELF binaries
vm | huge-vmap | HAVE_ARCH_HUGE_VMAP | TODO | arch supports the arch_vmap_pud_supported() and arch_vmap_pmd_supported() VM APIs
vm | ioremap_prot | HAVE_IOREMAP_PROT | ok | arch has ioremap_prot()
vm | PG_uncached | ARCH_USES_PG_UNCACHED | TODO | arch supports the PG_uncached page flag
vm | pte_special | ARCH_HAS_PTE_SPECIAL | ok | arch supports the pte_special()/pte_mkspecial() VM APIs
vm | THP | HAVE_ARCH_TRANSPARENT_HUGEPAGE | ok | arch supports transparent hugepages