mirror of https://gitee.com/openkylin/linux.git
MIPS: Enable some missed configs in loongson3_defconfig to support bpftrace
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>
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@ -26,6 +26,7 @@ CONFIG_SCHED_AUTOGROUP=y
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CONFIG_SYSFS_DEPRECATED=y
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CONFIG_RELAY=y
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CONFIG_BLK_DEV_INITRD=y
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CONFIG_BPF_SYSCALL=y
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CONFIG_EMBEDDED=y
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CONFIG_PERF_EVENTS=y
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CONFIG_MACH_LOONGSON64=y
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@ -39,6 +40,7 @@ CONFIG_MIPS32_O32=y
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CONFIG_MIPS32_N32=y
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CONFIG_VIRTUALIZATION=y
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CONFIG_KVM=m
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CONFIG_KPROBES=y
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CONFIG_MODULES=y
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CONFIG_MODULE_FORCE_LOAD=y
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CONFIG_MODULE_UNLOAD=y
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@ -128,6 +130,7 @@ CONFIG_L2TP=m
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CONFIG_BRIDGE=m
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CONFIG_VSOCKETS=m
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CONFIG_VIRTIO_VSOCKETS=m
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CONFIG_BPF_JIT=y
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CONFIG_CFG80211=m
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CONFIG_CFG80211_WEXT=y
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CONFIG_MAC80211=m
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@ -404,8 +407,10 @@ CONFIG_CRYPTO_DEFLATE=m
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CONFIG_PRINTK_TIME=y
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CONFIG_STRIP_ASM_SYMS=y
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CONFIG_MAGIC_SYSRQ=y
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CONFIG_DEBUG_FS=y
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# CONFIG_SCHED_DEBUG is not set
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# CONFIG_DEBUG_PREEMPT is not set
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# CONFIG_FTRACE is not set
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CONFIG_FUNCTION_TRACER=y
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CONFIG_FTRACE_SYSCALLS=y
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CONFIG_CMDLINE_BOOL=y
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CONFIG_CMDLINE="ieee754=relaxed"
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