[Qemu-devel] [5479] linux-user: Add readahead syscall

[Aurelien Jarno]

Revision: 5479
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5479
Author:   aurel32
Date:     2008-10-13 21:08:07 +0000 (Mon, 13 Oct 2008)

Log Message:
-----------
linux-user: Add readahead syscall

Signed-off-by: Kirill A. Shutemov <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>

Modified Paths:
--------------
    trunk/linux-user/syscall.c

Modified: trunk/linux-user/syscall.c
===================================================================
--- trunk/linux-user/syscall.c  2008-10-13 03:14:31 UTC (rev 5478)
+++ trunk/linux-user/syscall.c  2008-10-13 21:08:07 UTC (rev 5479)
@@ -5761,8 +5761,21 @@
         break;
 #ifdef TARGET_NR_readahead
     case TARGET_NR_readahead:
-        goto unimplemented;
+#if TARGET_ABI_BITS == 32
+#ifdef TARGET_ARM
+        if (((CPUARMState *)cpu_env)->eabi)
+        {
+            arg2 = arg3;
+            arg3 = arg4;
+            arg4 = arg5;
+        }
 #endif
+        ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4));
+#else
+        ret = get_errno(readahead(arg1, arg2, arg3));
+#endif
+        break;
+#endif
 #ifdef TARGET_NR_setxattr
     case TARGET_NR_setxattr:
     case TARGET_NR_lsetxattr: