tools/sched_ext: Add Kconfig to sync with upstream

# sched-ext mandatory options

#

CONFIG_BPF=y

CONFIG_BPF_SYSCALL=y

CONFIG_BPF_JIT=y

CONFIG_DEBUG_INFO_BTF=y

CONFIG_BPF_JIT_ALWAYS_ON=y

CONFIG_BPF_JIT_DEFAULT_ON=y

CONFIG_SCHED_CLASS_EXT=y

# Required by some rust schedulers (e.g. scx_p2dq)

#

CONFIG_KALLSYMS_ALL=y

# Required on arm64

#

# CONFIG_DEBUG_INFO_REDUCED is not set

# LAVD tracks futex to give an additional time slice for futex holder

# (i.e., avoiding lock holder preemption) for better system-wide progress.

# LAVD first tries to use ftrace to trace futex function calls.

# If that is not available, it tries to use a tracepoint.

CONFIG_FUNCTION_TRACER=y

# Enable scheduling debugging

#

CONFIG_SCHED_DEBUG=y

# Enable extra scheduling features (for a better code coverage while testing

# the schedulers)

#

CONFIG_SCHED_AUTOGROUP=y

CONFIG_SCHED_CORE=y

CONFIG_SCHED_MC=y

# Enable fully preemptible kernel for a better test coverage of the schedulers

#

# CONFIG_PREEMPT_NONE is not set

# CONFIG_PREEMPT_VOLUNTARY is not set

CONFIG_PREEMPT=y

CONFIG_PREEMPT_DYNAMIC=y

# Additional debugging information (useful to catch potential locking issues)

CONFIG_DEBUG_LOCKDEP=y

CONFIG_DEBUG_ATOMIC_SLEEP=y

CONFIG_PROVE_LOCKING=y

# Bpftrace headers (for additional debug info)

CONFIG_BPF_EVENTS=y

CONFIG_FTRACE_SYSCALLS=y

CONFIG_DYNAMIC_FTRACE=y

CONFIG_KPROBES=y

CONFIG_KPROBE_EVENTS=y

CONFIG_UPROBES=y

CONFIG_UPROBE_EVENTS=y

CONFIG_DEBUG_FS=y

# Enable access to kernel configuration and headers at runtime

CONFIG_IKHEADERS=y

CONFIG_IKCONFIG_PROC=y

CONFIG_IKCONFIG=y