From 12879184ce960effff8e5c062e28abfec3b27390 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Fri, 15 Jan 2021 14:17:19 +0100
Subject: [PATCH] UserspaceEmulator: Support the anon_create, sendfd and recvfd
 syscalls

---
 .../DevTools/UserspaceEmulator/Emulator.cpp   | 21 +++++++++++++++++++
 .../DevTools/UserspaceEmulator/Emulator.h     |  3 +++
 2 files changed, 24 insertions(+)

diff --git a/Userland/DevTools/UserspaceEmulator/Emulator.cpp b/Userland/DevTools/UserspaceEmulator/Emulator.cpp
index 107dbf5cbb..8248aedf53 100644
--- a/Userland/DevTools/UserspaceEmulator/Emulator.cpp
+++ b/Userland/DevTools/UserspaceEmulator/Emulator.cpp
@@ -453,6 +453,12 @@ u32 Emulator::virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3)
         return virt$mprotect(arg1, arg2, arg3);
     case SC_madvise:
         return virt$madvise(arg1, arg2, arg3);
+    case SC_anon_create:
+        return virt$anon_create(arg1, arg2);
+    case SC_sendfd:
+        return virt$sendfd(arg1, arg2);
+    case SC_recvfd:
+        return virt$recvfd(arg1);
     case SC_open:
         return virt$open(arg1);
     case SC_pipe:
@@ -545,6 +551,21 @@ u32 Emulator::virt_syscall(u32 function, u32 arg1, u32 arg2, u32 arg3)
     }
 }
 
+int Emulator::virt$anon_create(size_t size, int options)
+{
+    return syscall(SC_anon_create, size, options);
+}
+
+int Emulator::virt$sendfd(int socket, int fd)
+{
+    return syscall(SC_sendfd, socket, fd);
+}
+
+int Emulator::virt$recvfd(int socket)
+{
+    return syscall(SC_recvfd, socket);
+}
+
 int Emulator::virt$shbuf_create(int size, FlatPtr buffer)
 {
     u8* host_data = nullptr;
diff --git a/Userland/DevTools/UserspaceEmulator/Emulator.h b/Userland/DevTools/UserspaceEmulator/Emulator.h
index ff8fad1235..d842de77a3 100644
--- a/Userland/DevTools/UserspaceEmulator/Emulator.h
+++ b/Userland/DevTools/UserspaceEmulator/Emulator.h
@@ -175,6 +175,9 @@ private:
     int virt$beep();
     int virt$ftruncate(int fd, off_t);
     mode_t virt$umask(mode_t);
+    int virt$anon_create(size_t, int);
+    int virt$recvfd(int);
+    int virt$sendfd(int, int);
 
     FlatPtr allocate_vm(size_t size, size_t alignment);
     bool find_malloc_symbols(const MmapRegion& libc_text);