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[Qemu-devel] [5386] Add fadvise64 stubs


From: Aurelien Jarno
Subject: [Qemu-devel] [5386] Add fadvise64 stubs
Date: Wed, 01 Oct 2008 21:46:33 +0000

Revision: 5386
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5386
Author:   aurel32
Date:     2008-10-01 21:46:32 +0000 (Wed, 01 Oct 2008)

Log Message:
-----------
Add fadvise64 stubs

Since these are only hints, we happily fake them for now
to make applications not barf on ENOSYS.

Signed-off-by: Riku Voipio <address@hidden>
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  2008-10-01 21:46:23 UTC (rev 5385)
+++ trunk/linux-user/syscall.c  2008-10-01 21:46:32 UTC (rev 5386)
@@ -5578,6 +5578,27 @@
     case TARGET_NR_mincore:
         goto unimplemented;
 #endif
+#ifdef TARGET_NR_arm_fadvise64_64
+    case TARGET_NR_arm_fadvise64_64:
+       {
+               /*
+                * arm_fadvise64_64 looks like fadvise64_64 but
+                * with different argument order
+                */
+               abi_long temp;
+               temp = arg3;
+               arg3 = arg4;
+               arg4 = temp;
+       }
+#endif
+#if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64)
+#ifdef TARGET_NR_fadvise64_64
+    case TARGET_NR_fadvise64_64:
+#endif
+        /* This is a hint, so ignoring and returning success is ok.  */
+       ret = get_errno(0);
+       break;
+#endif
 #ifdef TARGET_NR_madvise
     case TARGET_NR_madvise:
         /* A straight passthrough may not be safe because qemu sometimes






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