以下是一个使用libbpf-bootstrap和uprobes在Golang中进行内存监测的简单代码案例：
package main/*#cgo CFLAGS: -I/usr/include#cgo LDFLAGS: -lelf -lz#include <unistd.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <stdio.h>#include "libbpf-bootstrap/libbpf-tools/include/bpf/bpf.h"struct data_t {int pid;char comm[16];};BPF_PERF_OUTPUT(events);int tracepoint_handler(struct bpf_perf_event_data *ctx) {struct data_t data = {};data.pid = bpf_get_current_pid_tgid() >> 32;bpf_get_current_comm(&data.comm, sizeof(data.comm));events.perf_submit(ctx, &data, sizeof(data));return 0;}*/import "C"import ("fmt""os""os/signal""syscall")func main() {fmt.Println("Tracing memory events. Ctrl+C to stop.")module := C.CString("path/to/your/bpf/module.o") // 替换为实际的BPF模块路径defer C.free(unsafe.Pointer(module))obj := C.bpf_object__open(module)if obj == nil {fmt.Println("Failed to open BPF object")return}C.bpf_object__load(obj)mmapEventID := C.bpf_program__attach_tracepoint(C.bpf_object__find_program_by_name(obj, "mmap"))if mmapEventID < 0 {fmt.Println("Failed to attach tracepoint")return}stopCh := make(chan os.Signal, 1)signal.Notify(stopCh, syscall.SIGINT, syscall.SIGTERM)<-stopChC.bpf_program__detach_tracepoint(mmapEventID)C.bpf_object__close(obj)fmt.Println("Tracing stopped.")}
在上述代码中，我们使用了libbpf-bootstrap库来简化与BPF相关的操作，并通过uprobes机制在内核中注册了mmap事件的tracepoint。该程序将跟踪所有发生的mmap事件，并打印相应进程的PID和命令名。
请确保替换代码中指定BPF模块路径的部分为实际的BPF模块路径，并安装所需依赖（如libbpf、libelf等）以使代码能够成功编译和运行。
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