pkg/ipc: move executor common_ext test

Move the test from executor to pkg/ipc to prevent import cycle
in the next change.
pkg/ipc looks like the most reasonable place for it (besides executor),
it already builds executor binary.
The test cannot be moved to pkg/csource b/c it will create csource<->ipc cycle.

1 files changed, 47 insertions, 0 deletions

diff --git a/pkg/ipc/ipc_test.go b/pkg/ipc/ipc_test.go
index a50fca9af..8a8cdfac8 100644
--- a/pkg/ipc/ipc_test.go
+++ b/pkg/ipc/ipc_test.go
@@ -4,6 +4,7 @@
 package ipc_test
 
 import (
+	"bytes"
 	"fmt"
 	"math/rand"
 	"runtime"
@@ -214,3 +215,49 @@ func TestZlib(t *testing.T) {
 		}
 	}
 }
+
+func TestExecutorCommonExt(t *testing.T) {
+	target, err := prog.GetTarget("test", "64_fork")
+	if err != nil {
+		t.Fatal(err)
+	}
+	sysTarget := targets.Get(target.OS, target.Arch)
+	if sysTarget.BrokenCompiler != "" {
+		t.Skipf("skipping, broken cross-compiler: %v", sysTarget.BrokenCompiler)
+	}
+	bin := csource.BuildExecutor(t, target, "../..", "-DSYZ_TEST_COMMON_EXT_EXAMPLE=1")
+	out, err := osutil.RunCmd(time.Minute, "", bin, "setup")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !bytes.Contains(out, []byte("example setup_ext called")) {
+		t.Fatalf("setup_ext wasn't called:\n%s", out)
+	}
+
+	// The example setup_ext_test does:
+	// *(uint64*)(SYZ_DATA_OFFSET + 0x1234) = 0xbadc0ffee;
+	// The following program tests that that value is present at 0x1234.
+	test := `syz_compare(&(0x7f0000001234)="", 0x8, &(0x7f0000000000)=@blob="eeffc0ad0b000000", AUTO)`
+	p, err := target.Deserialize([]byte(test), prog.Strict)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cfg, opts, err := ipcconfig.Default(target)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cfg.Executor = bin
+	opts.EnvFlags |= FlagDebug
+	env, err := MakeEnv(cfg, 0)
+	if err != nil {
+		t.Fatalf("failed to create env: %v", err)
+	}
+	defer env.Close()
+	_, info, _, err := env.Exec(opts, p)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if call := info.Calls[0]; (call.Flags&CallFinished) == 0 || call.Errno != 0 {
+		t.Fatalf("bad call result: flags=%x errno=%v", call.Flags, call.Errno)
+	}
+}