1 files changed, 23 insertions, 6 deletions
diff --git a/llgo/third_party/gofrontend/libgo/go/syscall/exec_bsd.go b/llgo/third_party/gofrontend/libgo/go/syscall/exec_bsd.go
index 217e0c842df..9042ce263aa 100644
--- a/llgo/third_party/gofrontend/libgo/go/syscall/exec_bsd.go
+++ b/llgo/third_party/gofrontend/libgo/go/syscall/exec_bsd.go
@@ -15,9 +15,12 @@ type SysProcAttr struct {
 	Credential *Credential // Credential.
 	Ptrace     bool        // Enable tracing.
 	Setsid     bool        // Create session.
-	Setpgid    bool        // Set process group ID to new pid (SYSV setpgrp)
-	Setctty    bool        // Set controlling terminal to fd 0
+	Setpgid    bool        // Set process group ID to Pgid, or, if Pgid == 0, to new pid.
+	Setctty    bool        // Set controlling terminal to fd Ctty
 	Noctty     bool        // Detach fd 0 from controlling terminal
+	Ctty       int         // Controlling TTY fd
+	Foreground bool        // Place child's process group in foreground. (Implies Setpgid. Uses Ctty as fd of controlling TTY)
+	Pgid       int         // Child's process group ID if Setpgid.
 }
 
 // Implemented in runtime package.
@@ -90,8 +93,22 @@ func forkAndExecInChild(argv0 *byte, argv, envv []*byte, chroot, dir *byte, attr
 	}
 
 	// Set process group
-	if sys.Setpgid {
-		err1 = raw_setpgid(0, 0)
+	if sys.Setpgid || sys.Foreground {
+		// Place child in process group.
+		err1 = raw_setpgid(0, sys.Pgid)
+		if err1 != 0 {
+			goto childerror
+		}
+	}
+
+	if sys.Foreground {
+		pgrp := Pid_t(sys.Pgid)
+		if pgrp == 0 {
+			pgrp = raw_getpid()
+		}
+
+		// Place process group in foreground.
+		_, err1 = raw_ioctl_ptr(sys.Ctty, TIOCSPGRP, unsafe.Pointer(&pgrp))
 		if err1 != 0 {
 			goto childerror
 		}
@@ -215,9 +232,9 @@ func forkAndExecInChild(argv0 *byte, argv, envv []*byte, chroot, dir *byte, attr
 		}
 	}
 
-	// Make fd 0 the tty
+	// Set the controlling TTY to Ctty
 	if sys.Setctty {
-		_, err1 = raw_ioctl(0, TIOCSCTTY, 0)
+		_, err1 = raw_ioctl(sys.Ctty, TIOCSCTTY, 0)
 		if err1 != 0 {
 			goto childerror
 		}