hs-test: add support for running vpp in gdb

[vpp.git] / extras / hs-test / vppinstance.go

diff --git a/extras/hs-test/vppinstance.go b/extras/hs-test/vppinstance.go
index 4092d35..1c28ec9 100644 (file)
--- a/extras/hs-test/vppinstance.go
+++ b/extras/hs-test/vppinstance.go
@@ -3,8 +3,11 @@ package main
 import (
        "fmt"
        "github.com/edwarnicke/exechelper"
+       "os"
        "os/exec"
+       "os/signal"
        "strings"
+       "syscall"
        "time"
 
        "go.fd.io/govpp"
@@ -113,8 +116,27 @@ func (vpp *VppInstance) start() error {
        startupFileName := vpp.getEtcDir() + "/startup.conf"
        vpp.container.createFile(startupFileName, configContent)
 
-       // Start VPP
-       vpp.container.execServer("su -c \"vpp -c " + startupFileName + " &> /proc/1/fd/1\"")
+       if *IsVppDebug {
+               sig := make(chan os.Signal, 1)
+               signal.Notify(sig, syscall.SIGINT)
+               cont := make(chan bool, 1)
+               go func() {
+                       sig := <-sig
+                       fmt.Println(sig)
+                       cont <- true
+               }()
+
+               // Start VPP in GDB and wait for user to attach it
+               vpp.container.execServer("su -c \"gdb -ex run --args vpp -c " + startupFileName + " &> /proc/1/fd/1\"")
+               fmt.Println("run following command in different terminal:")
+               fmt.Println("docker exec -it " + vpp.container.name + " gdb -ex \"attach $(docker exec " + vpp.container.name + " pidof gdb)\"")
+               fmt.Println("Afterwards press CTRL+C to continue")
+               <-cont
+               fmt.Println("continuing...")
+       } else {
+               // Start VPP
+               vpp.container.execServer("su -c \"vpp -c " + startupFileName + " &> /proc/1/fd/1\"")
+       }
 
        // Connect to VPP and store the connection
        sockAddress := vpp.container.GetHostWorkDir() + defaultApiSocketFilePath