Multithreaded locking for mmap().

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4654 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 6 insertions, 0 deletions

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 093b8ff8a3..7a38bfe074 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -233,6 +233,8 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
                        abi_ulong new_addr);
 int target_msync(abi_ulong start, abi_ulong len, int flags);
 extern unsigned long last_brk;
+void mmap_lock(void);
+void mmap_unlock(void);
 
 /* user access */
 
@@ -423,4 +425,8 @@ static inline void *lock_user_string(abi_ulong guest_addr)
 #define unlock_user_struct(host_ptr, guest_addr, copy)		\
     unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
 
+#if defined(USE_NPTL)
+#include <pthread.h>
+#endif
+
 #endif /* QEMU_H */