From 1372cb567cad10af3f6bf08afa2a01b1f310c424 Mon Sep 17 00:00:00 2001
From: grantseltzer <grantseltzer@gmail.com>
Date: Mon, 27 Jun 2022 11:31:50 -0400
Subject: [PATCH] Add small section in selftest

Signed-off-by: grantseltzer <grantseltzer@gmail.com>
---
 selftest/tracing/main.go | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/selftest/tracing/main.go b/selftest/tracing/main.go
index 8acfe7ec..44aa1831 100644
--- a/selftest/tracing/main.go
+++ b/selftest/tracing/main.go
@@ -11,6 +11,7 @@ import (
 	"fmt"
 
 	bpf "github.com/aquasecurity/libbpfgo"
+	"github.com/aquasecurity/libbpfgo/helpers"
 )
 
 func main() {
@@ -28,7 +29,22 @@ func main() {
 		os.Exit(-1)
 	}
 
-	bpfModule.ListProgramNames()
+	m, err := helpers.NewKernelSymbolsMap()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
+	}
+
+	sym, err := m.GetSymbolByName("system", "__x64_sys_mmap")
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(-1)
+	}
+
+	if sym.Address == 0 || sym.Name == "" {
+		fmt.Fprintln(os.Stderr, "could not find symbol to attach to")
+		os.Exit(-1)
+	}
 
 	prog, err := bpfModule.GetProgram("mmap_fentry")
 	if err != nil {