From: balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 21 Sep 2008 02:39:45 +0000 (+0000)
Subject: Band-aid vfork() emulation (Kirill Shutemov).
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=436d124b7d538b1fd9cf72edf17770664c309856;p=qemu.git

Band-aid vfork() emulation (Kirill Shutemov).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5279 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 64d700d8f3..40c0ed83e8 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -2800,6 +2800,10 @@ static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp,
     sigset_t sigmask;
 #endif
 
+    /* Emulate vfork() with fork() */
+    if (flags & CLONE_VFORK)
+        flags &= ~(CLONE_VFORK | CLONE_VM);
+
     if (flags & CLONE_VM) {
 #if defined(USE_NPTL)
         new_thread_info info;