On Mon, Mar 08, 2021 at 02:48:18PM +0800, Tiezhu Yang wrote: > 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@xxxxxxxxxxx> > --- > arch/mips/configs/loongson3_defconfig | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) applied to mips-next. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
