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MIPS: Enable some missed configs in loongson3_defconfig to support bpftrace

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bpftrace is a high-level tracing language for Linux enhanced Berkeley
Packet Filter (eBPF) available in recent Linux kernels (4.x). bpftrace
uses LLVM as a backend to compile scripts to BPF-bytecode and makes use
of BCC for interacting with the Linux BPF system, as well as existing
Linux tracing capabilities: kernel dynamic tracing (kprobes), user-level
dynamic tracing (uprobes), and tracepoints.

According to Linux Kernel Requirements in bpftrace/INSTALL.md [1], the
kernel needs to be built with the following options:

CONFIG_BPF=y
CONFIG_BPF_SYSCALL=y
CONFIG_BPF_JIT=y
CONFIG_HAVE_EBPF_JIT=y
CONFIG_BPF_EVENTS=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_FUNCTION_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_DYNAMIC_FTRACE=y
CONFIG_HAVE_KPROBES=y
CONFIG_KPROBES=y
CONFIG_KPROBE_EVENTS=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_UPROBES=y
CONFIG_UPROBE_EVENTS=y
CONFIG_DEBUG_FS=y

So enable some missed configs in loongson3_defconfig to make sure
the above configs are set after make loongson3_defconfig.

[1] https://github.com/iovisor/bpftrace/blob/master/INSTALL.md

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Tiezhu Yang 2021-03-08 14:48:18 +08:00 committed by Thomas Bogendoerfer
parent c024e8f665
commit 043d7f9713
1 changed files with 6 additions and 1 deletions
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7
arch/mips/configs/loongson3_defconfig
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@ -26,6 +26,7 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BPF_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_PERF_EVENTS=y
CONFIG_MACH_LOONGSON64=y
@ -39,6 +40,7 @@ CONFIG_MIPS32_O32=y
CONFIG_MIPS32_N32=y
CONFIG_VIRTUALIZATION=y
CONFIG_KVM=m
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
CONFIG_MODULE_UNLOAD=y
@ -128,6 +130,7 @@ CONFIG_L2TP=m
CONFIG_BRIDGE=m
CONFIG_VSOCKETS=m
CONFIG_VIRTIO_VSOCKETS=m
CONFIG_BPF_JIT=y
CONFIG_CFG80211=m
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=m
@ -404,8 +407,10 @@ CONFIG_CRYPTO_DEFLATE=m
CONFIG_PRINTK_TIME=y
CONFIG_STRIP_ASM_SYMS=y
CONFIG_MAGIC_SYSRQ=y
CONFIG_DEBUG_FS=y
# CONFIG_SCHED_DEBUG is not set
# CONFIG_DEBUG_PREEMPT is not set
# CONFIG_FTRACE is not set
CONFIG_FUNCTION_TRACER=y
CONFIG_FTRACE_SYSCALLS=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="ieee754=relaxed"